0098-disable_cm.patch is not needed because upstream fixed CM handling.
The rest are straightforward removals of upstreamed patches.
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
+++ /dev/null
-From: Paul Burton <paul.burton@mips.com>
-Date: Wed, 9 Oct 2019 23:09:45 +0000
-Subject: MIPS: cmdline: Clean up boot_command_line initialization
-
-Our current code to initialize boot_command_line is a mess. Some of this
-is due to the addition of too many options over the years, and some of
-this is due to workarounds for early_init_dt_scan_chosen() performing
-actions specific to options from other architectures that probably
-shouldn't be in generic code.
-
-Clean this up by introducing a new bootcmdline_init() function that
-simplifies the initialization somewhat. The major changes are:
-
-- Because bootcmdline_init() is a function it can return early in the
- CONFIG_CMDLINE_OVERRIDE case.
-
-- We clear boot_command_line rather than inheriting whatever
- early_init_dt_scan_chosen() may have left us. This means we no longer
- need to set boot_command_line to a space character in an attempt to
- prevent early_init_dt_scan_chosen() from copying CONFIG_CMDLINE into
- boot_command_line without us knowing about it.
-
-- Indirection via USE_PROM_CMDLINE, USE_DTB_CMDLINE, EXTEND_WITH_PROM &
- BUILTIN_EXTEND_WITH_PROM macros is removed; they seemingly served only
- to obfuscate the code.
-
-- The logic is cleaner, clearer & commented.
-
-Two minor drawbacks of this approach are:
-
-1) We call of_scan_flat_dt(), which means we scan through the DT again.
- The overhead is fairly minimal & shouldn't be noticeable.
-
-2) cmdline_scan_chosen() duplicates a small amount of the logic from
- early_init_dt_scan_chosen(). Alternatives might be to allow the
- generic FDT code to keep & expose a copy of the arguments taken from
- the /chosen node's bootargs property, or to introduce a function like
- early_init_dt_scan_chosen() that retrieves them without modification
- to handle CONFIG_CMDLINE. Neither of these sounds particularly
- cleaner though, and this way we at least keep the extra work in
- arch/mips.
-
-Origin: upstream, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7784cac697351f0cc0a4bb619594c0c99348c5aa
-Signed-off-by: Paul Burton <paul.burton@mips.com>
-Cc: linux-mips@vger.kernel.org
-
---- a/arch/mips/kernel/setup.c
-+++ b/arch/mips/kernel/setup.c
-@@ -538,11 +538,88 @@ static void __init check_kernel_sections
- }
- }
-
--#define USE_PROM_CMDLINE IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER)
--#define USE_DTB_CMDLINE IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_DTB)
--#define EXTEND_WITH_PROM IS_ENABLED(CONFIG_MIPS_CMDLINE_DTB_EXTEND)
--#define BUILTIN_EXTEND_WITH_PROM \
-- IS_ENABLED(CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND)
-+static void __init bootcmdline_append(const char *s, size_t max)
-+{
-+ if (!s[0] || !max)
-+ return;
-+
-+ if (boot_command_line[0])
-+ strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
-+
-+ strlcat(boot_command_line, s, max);
-+}
-+
-+static int __init bootcmdline_scan_chosen(unsigned long node, const char *uname,
-+ int depth, void *data)
-+{
-+ bool *dt_bootargs = data;
-+ const char *p;
-+ int l;
-+
-+ if (depth != 1 || !data ||
-+ (strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0))
-+ return 0;
-+
-+ p = of_get_flat_dt_prop(node, "bootargs", &l);
-+ if (p != NULL && l > 0) {
-+ bootcmdline_append(p, min(l, COMMAND_LINE_SIZE));
-+ *dt_bootargs = true;
-+ }
-+
-+ return 1;
-+}
-+
-+static void __init bootcmdline_init(char **cmdline_p)
-+{
-+ bool dt_bootargs = false;
-+
-+ /*
-+ * If CMDLINE_OVERRIDE is enabled then initializing the command line is
-+ * trivial - we simply use the built-in command line unconditionally &
-+ * unmodified.
-+ */
-+ if (IS_ENABLED(CONFIG_CMDLINE_OVERRIDE)) {
-+ strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
-+ return;
-+ }
-+
-+ /*
-+ * If the user specified a built-in command line &
-+ * MIPS_CMDLINE_BUILTIN_EXTEND, then the built-in command line is
-+ * prepended to arguments from the bootloader or DT so we'll copy them
-+ * to the start of boot_command_line here. Otherwise, empty
-+ * boot_command_line to undo anything early_init_dt_scan_chosen() did.
-+ */
-+ if (IS_ENABLED(CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND))
-+ strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
-+ else
-+ boot_command_line[0] = 0;
-+
-+ /*
-+ * If we're configured to take boot arguments from DT, look for those
-+ * now.
-+ */
-+ if (IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_DTB))
-+ of_scan_flat_dt(bootcmdline_scan_chosen, &dt_bootargs);
-+
-+ /*
-+ * If we didn't get any arguments from DT (regardless of whether that's
-+ * because we weren't configured to look for them, or because we looked
-+ * & found none) then we'll take arguments from the bootloader.
-+ * plat_mem_setup() should have filled arcs_cmdline with arguments from
-+ * the bootloader.
-+ */
-+ if (IS_ENABLED(CONFIG_MIPS_CMDLINE_DTB_EXTEND) || !dt_bootargs)
-+ bootcmdline_append(arcs_cmdline, COMMAND_LINE_SIZE);
-+
-+ /*
-+ * If the user specified a built-in command line & we didn't already
-+ * prepend it, we append it to boot_command_line here.
-+ */
-+ if (IS_ENABLED(CONFIG_CMDLINE_BOOL) &&
-+ !IS_ENABLED(CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND))
-+ bootcmdline_append(builtin_cmdline, COMMAND_LINE_SIZE);
-+}
-
- /*
- * arch_mem_init - initialize memory management subsystem
-@@ -570,48 +647,12 @@ static void __init arch_mem_init(char **
- {
- extern void plat_mem_setup(void);
-
-- /*
-- * Initialize boot_command_line to an innocuous but non-empty string in
-- * order to prevent early_init_dt_scan_chosen() from copying
-- * CONFIG_CMDLINE into it without our knowledge. We handle
-- * CONFIG_CMDLINE ourselves below & don't want to duplicate its
-- * content because repeating arguments can be problematic.
-- */
-- strlcpy(boot_command_line, " ", COMMAND_LINE_SIZE);
--
- /* call board setup routine */
- plat_mem_setup();
- memblock_set_bottom_up(true);
-
--#if defined(CONFIG_CMDLINE_BOOL) && defined(CONFIG_CMDLINE_OVERRIDE)
-- strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
--#else
-- if ((USE_PROM_CMDLINE && arcs_cmdline[0]) ||
-- (USE_DTB_CMDLINE && !boot_command_line[0]))
-- strlcpy(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
--
-- if (EXTEND_WITH_PROM && arcs_cmdline[0]) {
-- if (boot_command_line[0])
-- strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
-- strlcat(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
-- }
--
--#if defined(CONFIG_CMDLINE_BOOL)
-- if (builtin_cmdline[0]) {
-- if (boot_command_line[0])
-- strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
-- strlcat(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
-- }
--
-- if (BUILTIN_EXTEND_WITH_PROM && arcs_cmdline[0]) {
-- if (boot_command_line[0])
-- strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
-- strlcat(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
-- }
--#endif
--#endif
-+ bootcmdline_init(cmdline_p);
- strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
--
- *cmdline_p = command_line;
-
- parse_early_param();
+++ /dev/null
-From b7340422cc16c5deff100812f38114bb5ec81203 Mon Sep 17 00:00:00 2001
-From: Paul Burton <paul.burton@mips.com>
-Date: Sat, 12 Oct 2019 20:43:36 +0000
-Subject: [PATCH] MIPS: Always define builtin_cmdline
-
-Commit 7784cac69735 ("MIPS: cmdline: Clean up boot_command_line
-initialization") made use of builtin_cmdline conditional upon plain C if
-statements rather than preprocessor #ifdef's. This caused build failures
-for configurations with CONFIG_CMDLINE_BOOL=n where builtin_cmdline
-wasn't defined, for example:
-
- arch/mips/kernel/setup.c: In function 'bootcmdline_init':
->> arch/mips/kernel/setup.c:582:30: error: 'builtin_cmdline' undeclared
- (first use in this function); did you mean 'builtin_driver'?
- strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
- ^~~~~~~~~~~~~~~
- builtin_driver
- arch/mips/kernel/setup.c:582:30: note: each undeclared identifier is
- reported only once for each function it appears in
-
-Fix this by defining builtin_cmdline as an empty string in the affected
-configurations. All of the paths that use it should be optimized out
-anyway so the data itself gets optimized away too.
-
-Signed-off-by: Paul Burton <paul.burton@mips.com>
-Fixes: 7784cac69735 ("MIPS: cmdline: Clean up boot_command_line initialization")
-Reported-by: kbuild test robot <lkp@intel.com>
-Reported-by: Nathan Chancellor <natechancellor@gmail.com>
-Cc: linux-mips@vger.kernel.org
----
- arch/mips/kernel/setup.c | 2 ++
- 1 file changed, 2 insertions(+)
-
---- a/arch/mips/kernel/setup.c
-+++ b/arch/mips/kernel/setup.c
-@@ -68,6 +68,8 @@ char __initdata arcs_cmdline[COMMAND_LIN
-
- #ifdef CONFIG_CMDLINE_BOOL
- static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
-+#else
-+static const char builtin_cmdline[] __initconst = "";
- #endif
-
- /*
+++ /dev/null
---- a/arch/mips/kernel/mips-cm.c
-+++ b/arch/mips/kernel/mips-cm.c
-@@ -233,6 +233,7 @@ int mips_cm_probe(void)
-
- /* disable CM regions */
- write_gcr_reg0_base(CM_GCR_REGn_BASE_BASEADDR);
-+ /*
- write_gcr_reg0_mask(CM_GCR_REGn_MASK_ADDRMASK);
- write_gcr_reg1_base(CM_GCR_REGn_BASE_BASEADDR);
- write_gcr_reg1_mask(CM_GCR_REGn_MASK_ADDRMASK);
-@@ -240,7 +241,7 @@ int mips_cm_probe(void)
- write_gcr_reg2_mask(CM_GCR_REGn_MASK_ADDRMASK);
- write_gcr_reg3_base(CM_GCR_REGn_BASE_BASEADDR);
- write_gcr_reg3_mask(CM_GCR_REGn_MASK_ADDRMASK);
--
-+*/
- /* probe for an L2-only sync region */
- mips_cm_probe_l2sync();
-
+++ /dev/null
-From b327cd58c3fec1c6382128e929eab9bc0d68e912 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Sun, 8 Mar 2020 10:19:27 +0100
-Subject: [PATCH] staging: mt7621-pci: simplify
- 'mt7621_pcie_init_virtual_bridges' function
-
-Function 'mt7621_pcie_init_virtual_bridges' is a bit mess and can be
-refactorized properly in a cleaner way. Introduce new 'pcie_rmw' inline
-function helper to do clear and set the correct bits this function needs
-to work.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200308091928.17177-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 85 +++++++++++++--------------------
- 1 file changed, 33 insertions(+), 52 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -57,13 +57,13 @@
- #define RALINK_PCI_IOBASE 0x002C
-
- /* PCICFG virtual bridges */
--#define MT7621_BR0_MASK GENMASK(19, 16)
--#define MT7621_BR1_MASK GENMASK(23, 20)
--#define MT7621_BR2_MASK GENMASK(27, 24)
--#define MT7621_BR_ALL_MASK GENMASK(27, 16)
--#define MT7621_BR0_SHIFT 16
--#define MT7621_BR1_SHIFT 20
--#define MT7621_BR2_SHIFT 24
-+#define PCIE_P2P_MAX 3
-+#define PCIE_P2P_BR_DEVNUM_SHIFT(p) (16 + (p) * 4)
-+#define PCIE_P2P_BR_DEVNUM0_SHIFT PCIE_P2P_BR_DEVNUM_SHIFT(0)
-+#define PCIE_P2P_BR_DEVNUM1_SHIFT PCIE_P2P_BR_DEVNUM_SHIFT(1)
-+#define PCIE_P2P_BR_DEVNUM2_SHIFT PCIE_P2P_BR_DEVNUM_SHIFT(2)
-+#define PCIE_P2P_BR_DEVNUM_MASK 0xf
-+#define PCIE_P2P_BR_DEVNUM_MASK_FULL (0xfff << PCIE_P2P_BR_DEVNUM0_SHIFT)
-
- /* PCIe RC control registers */
- #define MT7621_PCIE_OFFSET 0x2000
-@@ -154,6 +154,15 @@ static inline void pcie_write(struct mt7
- writel(val, pcie->base + reg);
- }
-
-+static inline void pcie_rmw(struct mt7621_pcie *pcie, u32 reg, u32 clr, u32 set)
-+{
-+ u32 val = readl(pcie->base + reg);
-+
-+ val &= ~clr;
-+ val |= set;
-+ writel(val, pcie->base + reg);
-+}
-+
- static inline u32 pcie_port_read(struct mt7621_pcie_port *port, u32 reg)
- {
- return readl(port->base + reg);
-@@ -554,7 +563,9 @@ static void mt7621_pcie_enable_ports(str
- static int mt7621_pcie_init_virtual_bridges(struct mt7621_pcie *pcie)
- {
- u32 pcie_link_status = 0;
-- u32 val = 0;
-+ u32 n;
-+ int i;
-+ u32 p2p_br_devnum[PCIE_P2P_MAX];
- struct mt7621_pcie_port *port;
-
- list_for_each_entry(port, &pcie->ports, list) {
-@@ -567,50 +578,20 @@ static int mt7621_pcie_init_virtual_brid
- if (pcie_link_status == 0)
- return -1;
-
-- /*
-- * pcie(2/1/0) link status pcie2_num pcie1_num pcie0_num
-- * 3'b000 x x x
-- * 3'b001 x x 0
-- * 3'b010 x 0 x
-- * 3'b011 x 1 0
-- * 3'b100 0 x x
-- * 3'b101 1 x 0
-- * 3'b110 1 0 x
-- * 3'b111 2 1 0
-- */
-- switch (pcie_link_status) {
-- case 2:
-- val = pcie_read(pcie, RALINK_PCI_PCICFG_ADDR);
-- val &= ~(MT7621_BR0_MASK | MT7621_BR1_MASK);
-- val |= 0x1 << MT7621_BR0_SHIFT;
-- val |= 0x0 << MT7621_BR1_SHIFT;
-- pcie_write(pcie, val, RALINK_PCI_PCICFG_ADDR);
-- break;
-- case 4:
-- val = pcie_read(pcie, RALINK_PCI_PCICFG_ADDR);
-- val &= ~MT7621_BR_ALL_MASK;
-- val |= 0x1 << MT7621_BR0_SHIFT;
-- val |= 0x2 << MT7621_BR1_SHIFT;
-- val |= 0x0 << MT7621_BR2_SHIFT;
-- pcie_write(pcie, val, RALINK_PCI_PCICFG_ADDR);
-- break;
-- case 5:
-- val = pcie_read(pcie, RALINK_PCI_PCICFG_ADDR);
-- val &= ~MT7621_BR_ALL_MASK;
-- val |= 0x0 << MT7621_BR0_SHIFT;
-- val |= 0x2 << MT7621_BR1_SHIFT;
-- val |= 0x1 << MT7621_BR2_SHIFT;
-- pcie_write(pcie, val, RALINK_PCI_PCICFG_ADDR);
-- break;
-- case 6:
-- val = pcie_read(pcie, RALINK_PCI_PCICFG_ADDR);
-- val &= ~MT7621_BR_ALL_MASK;
-- val |= 0x2 << MT7621_BR0_SHIFT;
-- val |= 0x0 << MT7621_BR1_SHIFT;
-- val |= 0x1 << MT7621_BR2_SHIFT;
-- pcie_write(pcie, val, RALINK_PCI_PCICFG_ADDR);
-- break;
-- }
-+ n = 0;
-+ for (i = 0; i < PCIE_P2P_MAX; i++)
-+ if (pcie_link_status & BIT(i))
-+ p2p_br_devnum[i] = n++;
-+
-+ for (i = 0; i < PCIE_P2P_MAX; i++)
-+ if ((pcie_link_status & BIT(i)) == 0)
-+ p2p_br_devnum[i] = n++;
-+
-+ pcie_rmw(pcie, RALINK_PCI_CONFIG_ADDR,
-+ PCIE_P2P_BR_DEVNUM_MASK_FULL,
-+ (p2p_br_devnum[0] << PCIE_P2P_BR_DEVNUM0_SHIFT) |
-+ (p2p_br_devnum[1] << PCIE_P2P_BR_DEVNUM1_SHIFT) |
-+ (p2p_br_devnum[2] << PCIE_P2P_BR_DEVNUM2_SHIFT));
-
- return 0;
- }
+++ /dev/null
-From 550fabd71d7fcdfe099bbf41e00e28719737161e Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Tue, 10 Mar 2020 12:34:59 +0100
-Subject: [PATCH] staging: mt7621-pci: enable clock bit for each port
-
-The clock related code concerns me from the very beginning because
-there are some set ups got from legacy driver that are not documented
-anywhere. According to the programming guide 0x7c is 'CPE_ROSC_SEL1'
-register and 0x80 is 'CPU_CPE_CN'. I do think this set up is not needed
-at all and the proper thing to do is just enable the clock bit for each
-pcie port. Hence remove useless code and do the right thing which is
-setting up the clock bit for each port enabled.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200310113459.30539-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 17 ++++++-----------
- 1 file changed, 6 insertions(+), 11 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -45,8 +45,6 @@
-
- /* rt_sysc_membase relative registers */
- #define RALINK_CLKCFG1 0x30
--#define RALINK_PCIE_CLK_GEN 0x7c
--#define RALINK_PCIE_CLK_GEN1 0x80
-
- /* Host-PCI bridge registers */
- #define RALINK_PCI_PCICFG_ADDR 0x0000
-@@ -85,10 +83,6 @@
- #define PCIE_PORT_CLK_EN(x) BIT(24 + (x))
- #define PCIE_PORT_LINKUP BIT(0)
-
--#define PCIE_CLK_GEN_EN BIT(31)
--#define PCIE_CLK_GEN_DIS 0
--#define PCIE_CLK_GEN1_DIS GENMASK(30, 24)
--#define PCIE_CLK_GEN1_EN (BIT(27) | BIT(25))
- #define MEMORY_BASE 0x0
- #define PERST_MODE_MASK GENMASK(11, 10)
- #define PERST_MODE_GPIO BIT(10)
-@@ -233,6 +227,11 @@ static inline bool mt7621_pcie_port_is_l
- return (pcie_port_read(port, RALINK_PCI_STATUS) & PCIE_PORT_LINKUP) != 0;
- }
-
-+static inline void mt7621_pcie_port_clk_enable(struct mt7621_pcie_port *port)
-+{
-+ rt_sysc_m32(0, PCIE_PORT_CLK_EN(port->slot), RALINK_CLKCFG1);
-+}
-+
- static inline void mt7621_pcie_port_clk_disable(struct mt7621_pcie_port *port)
- {
- rt_sysc_m32(PCIE_PORT_CLK_EN(port->slot), 0, RALINK_CLKCFG1);
-@@ -501,11 +500,6 @@ static void mt7621_pcie_init_ports(struc
- }
- }
-
-- rt_sysc_m32(0x30, 2 << 4, SYSC_REG_SYSTEM_CONFIG1);
-- rt_sysc_m32(PCIE_CLK_GEN_EN, PCIE_CLK_GEN_DIS, RALINK_PCIE_CLK_GEN);
-- rt_sysc_m32(PCIE_CLK_GEN1_DIS, PCIE_CLK_GEN1_EN, RALINK_PCIE_CLK_GEN1);
-- rt_sysc_m32(PCIE_CLK_GEN_DIS, PCIE_CLK_GEN_EN, RALINK_PCIE_CLK_GEN);
-- msleep(50);
- reset_control_deassert(pcie->rst);
- }
-
-@@ -542,6 +536,7 @@ static void mt7621_pcie_enable_ports(str
-
- list_for_each_entry(port, &pcie->ports, list) {
- if (port->enabled) {
-+ mt7621_pcie_port_clk_enable(port);
- mt7621_pcie_enable_port(port);
- dev_info(dev, "PCIE%d enabled\n", num_slots_enabled);
- num_slots_enabled++;
+++ /dev/null
-From 227a8bf421ff8b085444e51e471ef06a87228cfd Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Fri, 13 Mar 2020 21:09:08 +0100
-Subject: [PATCH] staging: mt7621-pci: use gpios for properly reset
-
-Original driver code was using three gpio's for reset
-asserts and deasserts the pcis. Instead of using that
-a general reset control with a perst gpio was introduced
-and it seems it is partially working but sometimes there
-are some unexpected hangs on boot. This commit make use of
-the three original gpios using 'reset-gpios' property of
-the device tree and removes the reset line and perst gpio.
-According to the mediatek aplication note v0.1 there are
-three gpios used for pcie ports reset control: gpio#19,
-gpio#8 and gpio#7 for slots 0, 1 and 2 respectively.
-This schema can be used separately for mt7621A but in some
-boards due to pin share issue, if the PCM and I2S function
-are enable at the same time, there are no enough GPIO to
-control per-port PCIe reset. In those cases gpio#19 is enought
-for reset the three ports together. Because of this we just
-try to get the three gpios but if some of them fail we are not
-failing in boot process, just prints a kernel notice and take
-after into account if the descriptor is or not valid in order
-to use it. All of them are set as GPIO output low configuration.
-The gpio descriptor's API takes device tree property into account
-and invert value if the pin is configured as active low.
-So we also have to properly request pins from device tree
-and set values correct in assert and deassert functions.
-After this changes the order to make all assert and
-deassert in the 'probe' process makes more sense:
-* Parse device tree.
-* make assert of the RC's and EP's before doing anything else.
-* make deassert of the RC's before initializing the phy.
-* Init the phy.
-* make deassert of the EP's before initialize pci ports.
-* Normal PCI initialization.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200313200913.24321-2-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 84 ++++++++++++++++++++-------------
- 1 file changed, 51 insertions(+), 33 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -95,6 +95,7 @@
- * @pcie: pointer to PCIe host info
- * @phy: pointer to PHY control block
- * @pcie_rst: pointer to port reset control
-+ * @gpio_rst: gpio reset
- * @slot: port slot
- * @enabled: indicates if port is enabled
- */
-@@ -104,6 +105,7 @@ struct mt7621_pcie_port {
- struct mt7621_pcie *pcie;
- struct phy *phy;
- struct reset_control *pcie_rst;
-+ struct gpio_desc *gpio_rst;
- u32 slot;
- bool enabled;
- };
-@@ -117,8 +119,6 @@ struct mt7621_pcie_port {
- * @offset: IO / Memory offset
- * @dev: Pointer to PCIe device
- * @ports: pointer to PCIe port information
-- * @perst: gpio reset
-- * @rst: pointer to pcie reset
- * @resets_inverted: depends on chip revision
- * reset lines are inverted.
- */
-@@ -133,8 +133,6 @@ struct mt7621_pcie {
- resource_size_t io;
- } offset;
- struct list_head ports;
-- struct gpio_desc *perst;
-- struct reset_control *rst;
- bool resets_inverted;
- };
-
-@@ -210,16 +208,16 @@ static void write_config(struct mt7621_p
- pcie_write(pcie, val, RALINK_PCI_CONFIG_DATA);
- }
-
--static inline void mt7621_perst_gpio_pcie_assert(struct mt7621_pcie *pcie)
-+static inline void mt7621_rst_gpio_pcie_assert(struct mt7621_pcie_port *port)
- {
-- gpiod_set_value(pcie->perst, 0);
-- mdelay(PERST_DELAY_US);
-+ if (port->gpio_rst)
-+ gpiod_set_value(port->gpio_rst, 1);
- }
-
--static inline void mt7621_perst_gpio_pcie_deassert(struct mt7621_pcie *pcie)
-+static inline void mt7621_rst_gpio_pcie_deassert(struct mt7621_pcie_port *port)
- {
-- gpiod_set_value(pcie->perst, 1);
-- mdelay(PERST_DELAY_US);
-+ if (port->gpio_rst)
-+ gpiod_set_value(port->gpio_rst, 0);
- }
-
- static inline bool mt7621_pcie_port_is_linkup(struct mt7621_pcie_port *port)
-@@ -367,6 +365,13 @@ static int mt7621_pcie_parse_port(struct
- if (IS_ERR(port->phy))
- return PTR_ERR(port->phy);
-
-+ port->gpio_rst = devm_gpiod_get_index_optional(dev, "reset", slot,
-+ GPIOD_OUT_LOW);
-+ if (IS_ERR(port->gpio_rst)) {
-+ dev_err(dev, "Failed to get GPIO for PCIe%d\n", slot);
-+ return PTR_ERR(port->gpio_rst);
-+ }
-+
- port->slot = slot;
- port->pcie = pcie;
-
-@@ -383,12 +388,6 @@ static int mt7621_pcie_parse_dt(struct m
- struct resource regs;
- int err;
-
-- pcie->perst = devm_gpiod_get(dev, "perst", GPIOD_OUT_HIGH);
-- if (IS_ERR(pcie->perst)) {
-- dev_err(dev, "failed to get gpio perst\n");
-- return PTR_ERR(pcie->perst);
-- }
--
- err = of_address_to_resource(node, 0, ®s);
- if (err) {
- dev_err(dev, "missing \"reg\" property\n");
-@@ -399,12 +398,6 @@ static int mt7621_pcie_parse_dt(struct m
- if (IS_ERR(pcie->base))
- return PTR_ERR(pcie->base);
-
-- pcie->rst = devm_reset_control_get_exclusive(dev, "pcie");
-- if (PTR_ERR(pcie->rst) == -EPROBE_DEFER) {
-- dev_err(dev, "failed to get pcie reset control\n");
-- return PTR_ERR(pcie->rst);
-- }
--
- for_each_available_child_of_node(node, child) {
- int slot;
-
-@@ -458,16 +451,49 @@ static int mt7621_pcie_init_port(struct
- return 0;
- }
-
-+static void mt7621_pcie_reset_assert(struct mt7621_pcie *pcie)
-+{
-+ struct mt7621_pcie_port *port;
-+
-+ list_for_each_entry(port, &pcie->ports, list) {
-+ /* PCIe RC reset assert */
-+ mt7621_control_assert(port);
-+
-+ /* PCIe EP reset assert */
-+ mt7621_rst_gpio_pcie_assert(port);
-+ }
-+
-+ mdelay(PERST_DELAY_US);
-+}
-+
-+static void mt7621_pcie_reset_rc_deassert(struct mt7621_pcie *pcie)
-+{
-+ struct mt7621_pcie_port *port;
-+
-+ list_for_each_entry(port, &pcie->ports, list)
-+ mt7621_control_deassert(port);
-+}
-+
-+static void mt7621_pcie_reset_ep_deassert(struct mt7621_pcie *pcie)
-+{
-+ struct mt7621_pcie_port *port;
-+
-+ list_for_each_entry(port, &pcie->ports, list)
-+ mt7621_rst_gpio_pcie_deassert(port);
-+
-+ mdelay(PERST_DELAY_US);
-+}
-+
- static void mt7621_pcie_init_ports(struct mt7621_pcie *pcie)
- {
- struct device *dev = pcie->dev;
- struct mt7621_pcie_port *port, *tmp;
-- u32 val = 0;
- int err;
-
- rt_sysc_m32(PERST_MODE_MASK, PERST_MODE_GPIO, MT7621_GPIO_MODE);
-
-- mt7621_perst_gpio_pcie_assert(pcie);
-+ mt7621_pcie_reset_assert(pcie);
-+ mt7621_pcie_reset_rc_deassert(pcie);
-
- list_for_each_entry_safe(port, tmp, &pcie->ports, list) {
- u32 slot = port->slot;
-@@ -476,16 +502,10 @@ static void mt7621_pcie_init_ports(struc
- if (err) {
- dev_err(dev, "Initiating port %d failed\n", slot);
- list_del(&port->list);
-- } else {
-- val = read_config(pcie, slot, PCIE_FTS_NUM);
-- dev_info(dev, "Port %d N_FTS = %x\n", slot,
-- (unsigned int)val);
- }
- }
-
-- reset_control_assert(pcie->rst);
--
-- mt7621_perst_gpio_pcie_deassert(pcie);
-+ mt7621_pcie_reset_ep_deassert(pcie);
-
- list_for_each_entry(port, &pcie->ports, list) {
- u32 slot = port->slot;
-@@ -499,8 +519,6 @@ static void mt7621_pcie_init_ports(struc
- port->enabled = false;
- }
- }
--
-- reset_control_deassert(pcie->rst);
- }
-
- static void mt7621_pcie_enable_port(struct mt7621_pcie_port *port)
+++ /dev/null
-From e462e7d3211479df42357a620fa788a2257556b7 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Fri, 13 Mar 2020 21:09:09 +0100
-Subject: [PATCH] staging: mt7621-pci: change value for 'PERST_DELAY_MS'
-
-Value of 'PERST_DELAY_MS' is too high and it is ok just
-to set up to 100 ms. Update also define name from
-'PERST_DELAY_US' into 'PERST_DELAY_MS'
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200313200913.24321-3-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 6 +++---
- 1 file changed, 3 insertions(+), 3 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -86,7 +86,7 @@
- #define MEMORY_BASE 0x0
- #define PERST_MODE_MASK GENMASK(11, 10)
- #define PERST_MODE_GPIO BIT(10)
--#define PERST_DELAY_US 1000
-+#define PERST_DELAY_MS 100
-
- /**
- * struct mt7621_pcie_port - PCIe port information
-@@ -463,7 +463,7 @@ static void mt7621_pcie_reset_assert(str
- mt7621_rst_gpio_pcie_assert(port);
- }
-
-- mdelay(PERST_DELAY_US);
-+ mdelay(PERST_DELAY_MS);
- }
-
- static void mt7621_pcie_reset_rc_deassert(struct mt7621_pcie *pcie)
-@@ -481,7 +481,7 @@ static void mt7621_pcie_reset_ep_deasser
- list_for_each_entry(port, &pcie->ports, list)
- mt7621_rst_gpio_pcie_deassert(port);
-
-- mdelay(PERST_DELAY_US);
-+ mdelay(PERST_DELAY_MS);
- }
-
- static void mt7621_pcie_init_ports(struct mt7621_pcie *pcie)
+++ /dev/null
-From 4d6a758f2cd2122a7d895f913854c13da62ba6df Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Fri, 13 Mar 2020 21:09:12 +0100
-Subject: [PATCH] staging: mt7621-pci: release gpios after pci initialization
-
-R3G's LEDs fail to initialize because one of them uses GPIO8
-Hence, release the GPIO resources after PCIe initialization
-and properly release also in driver error path.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200313200913.24321-6-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 23 ++++++++++++++++++-----
- 1 file changed, 18 insertions(+), 5 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -484,6 +484,15 @@ static void mt7621_pcie_reset_ep_deasser
- mdelay(PERST_DELAY_MS);
- }
-
-+static void mt7621_pcie_release_gpios(struct mt7621_pcie *pcie)
-+{
-+ struct mt7621_pcie_port *port;
-+
-+ list_for_each_entry(port, &pcie->ports, list)
-+ if (port->gpio_rst)
-+ gpiod_put(port->gpio_rst);
-+}
-+
- static void mt7621_pcie_init_ports(struct mt7621_pcie *pcie)
- {
- struct device *dev = pcie->dev;
-@@ -683,7 +692,8 @@ static int mt7621_pci_probe(struct platf
- err = mt7621_pcie_init_virtual_bridges(pcie);
- if (err) {
- dev_err(dev, "Nothing is connected in virtual bridges. Exiting...");
-- return 0;
-+ err = 0;
-+ goto out_release_gpios;
- }
-
- mt7621_pcie_enable_ports(pcie);
-@@ -691,7 +701,7 @@ static int mt7621_pci_probe(struct platf
- err = mt7621_pci_parse_request_of_pci_ranges(pcie);
- if (err) {
- dev_err(dev, "Error requesting pci resources from ranges");
-- return err;
-+ goto out_release_gpios;
- }
-
- setup_cm_memory_region(pcie);
-@@ -699,16 +709,19 @@ static int mt7621_pci_probe(struct platf
- err = mt7621_pcie_request_resources(pcie, &res);
- if (err) {
- dev_err(dev, "Error requesting resources\n");
-- return err;
-+ goto out_release_gpios;
- }
-
- err = mt7621_pcie_register_host(bridge, &res);
- if (err) {
- dev_err(dev, "Error registering host\n");
-- return err;
-+ goto out_release_gpios;
- }
-
-- return 0;
-+out_release_gpios:
-+ mt7621_pcie_release_gpios(pcie);
-+
-+ return err;
- }
-
- static const struct of_device_id mt7621_pci_ids[] = {
+++ /dev/null
-From 4be54c3a495f08c05a8e485566e5b88cd3537f16 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Fri, 13 Mar 2020 21:09:13 +0100
-Subject: [PATCH] staging: mt7621-pci: delete no more needed
- 'mt7621_reset_port'
-
-After review all the resets at the beggining the function
-'mt7621_reset_port' is not needed anymore. Hence delete it
-and its uses.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200313200913.24321-7-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 13 -------------
- 1 file changed, 13 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -255,13 +255,6 @@ static inline void mt7621_control_deasse
- reset_control_assert(port->pcie_rst);
- }
-
--static void mt7621_reset_port(struct mt7621_pcie_port *port)
--{
-- mt7621_control_assert(port);
-- msleep(100);
-- mt7621_control_deassert(port);
--}
--
- static void setup_cm_memory_region(struct mt7621_pcie *pcie)
- {
- struct resource *mem_resource = &pcie->mem;
-@@ -427,12 +420,6 @@ static int mt7621_pcie_init_port(struct
- u32 slot = port->slot;
- int err;
-
-- /*
-- * Any MT7621 Ralink pcie controller that doesn't have 0x0101 at
-- * the end of the chip_id has inverted PCI resets.
-- */
-- mt7621_reset_port(port);
--
- err = phy_init(port->phy);
- if (err) {
- dev_err(dev, "failed to initialize port%d phy\n", slot);
+++ /dev/null
-From bf0c6782e5b9a6deee4e223655325dc004fae8dd Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Sun, 15 Mar 2020 17:01:54 +0100
-Subject: [PATCH] staging: mt7621-pci-phy: add 'mt7621_phy_rmw' to simplify
- code
-
-In order to simplify driver code and decrease a bit LOC add new
-function 'mt7621_phy_rmw' where clear and set bits are passed as
-arguments.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200315160154.10292-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c | 158 +++++++++++-------------
- 1 file changed, 71 insertions(+), 87 deletions(-)
-
---- a/drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c
-+++ b/drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c
-@@ -120,17 +120,25 @@ static inline void phy_write(struct mt76
- regmap_write(phy->regmap, reg, val);
- }
-
-+static inline void mt7621_phy_rmw(struct mt7621_pci_phy *phy,
-+ u32 reg, u32 clr, u32 set)
-+{
-+ u32 val = phy_read(phy, reg);
-+
-+ val &= ~clr;
-+ val |= set;
-+ phy_write(phy, val, reg);
-+}
-+
- static void mt7621_bypass_pipe_rst(struct mt7621_pci_phy *phy,
- struct mt7621_pci_phy_instance *instance)
- {
- u32 offset = (instance->index != 1) ?
- RG_PE1_PIPE_REG : RG_PE1_PIPE_REG + RG_P0_TO_P1_WIDTH;
-- u32 reg;
-
-- reg = phy_read(phy, offset);
-- reg &= ~(RG_PE1_PIPE_RST | RG_PE1_PIPE_CMD_FRC);
-- reg |= (RG_PE1_PIPE_RST | RG_PE1_PIPE_CMD_FRC);
-- phy_write(phy, reg, offset);
-+ mt7621_phy_rmw(phy, offset,
-+ RG_PE1_PIPE_RST | RG_PE1_PIPE_CMD_FRC,
-+ RG_PE1_PIPE_RST | RG_PE1_PIPE_CMD_FRC);
- }
-
- static void mt7621_set_phy_for_ssc(struct mt7621_pci_phy *phy,
-@@ -139,97 +147,77 @@ static void mt7621_set_phy_for_ssc(struc
- struct device *dev = phy->dev;
- u32 reg = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG0);
- u32 offset;
-- u32 val;
-
- reg = (reg >> 6) & 0x7;
- /* Set PCIe Port PHY to disable SSC */
- /* Debug Xtal Type */
-- val = phy_read(phy, RG_PE1_FRC_H_XTAL_REG);
-- val &= ~(RG_PE1_FRC_H_XTAL_TYPE | RG_PE1_H_XTAL_TYPE);
-- val |= RG_PE1_FRC_H_XTAL_TYPE;
-- val |= RG_PE1_H_XTAL_TYPE_VAL(0x00);
-- phy_write(phy, val, RG_PE1_FRC_H_XTAL_REG);
-+ mt7621_phy_rmw(phy, RG_PE1_FRC_H_XTAL_REG,
-+ RG_PE1_FRC_H_XTAL_TYPE | RG_PE1_H_XTAL_TYPE,
-+ RG_PE1_FRC_H_XTAL_TYPE | RG_PE1_H_XTAL_TYPE_VAL(0x00));
-
- /* disable port */
- offset = (instance->index != 1) ?
- RG_PE1_FRC_PHY_REG : RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH;
-- val = phy_read(phy, offset);
-- val &= ~(RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN);
-- val |= RG_PE1_FRC_PHY_EN;
-- phy_write(phy, val, offset);
--
-- /* Set Pre-divider ratio (for host mode) */
-- val = phy_read(phy, RG_PE1_H_PLL_REG);
-- val &= ~(RG_PE1_H_PLL_PREDIV);
-+ mt7621_phy_rmw(phy, offset,
-+ RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN, RG_PE1_FRC_PHY_EN);
-
- if (reg <= 5 && reg >= 3) { /* 40MHz Xtal */
-- val |= RG_PE1_H_PLL_PREDIV_VAL(0x01);
-- phy_write(phy, val, RG_PE1_H_PLL_REG);
-+ /* Set Pre-divider ratio (for host mode) */
-+ mt7621_phy_rmw(phy, RG_PE1_H_PLL_REG,
-+ RG_PE1_H_PLL_PREDIV,
-+ RG_PE1_H_PLL_PREDIV_VAL(0x01));
- dev_info(dev, "Xtal is 40MHz\n");
-- } else { /* 25MHz | 20MHz Xtal */
-- val |= RG_PE1_H_PLL_PREDIV_VAL(0x00);
-- phy_write(phy, val, RG_PE1_H_PLL_REG);
-- if (reg >= 6) {
-- dev_info(dev, "Xtal is 25MHz\n");
--
-- /* Select feedback clock */
-- val = phy_read(phy, RG_PE1_H_PLL_FBKSEL_REG);
-- val &= ~(RG_PE1_H_PLL_FBKSEL);
-- val |= RG_PE1_H_PLL_FBKSEL_VAL(0x01);
-- phy_write(phy, val, RG_PE1_H_PLL_FBKSEL_REG);
--
-- /* DDS NCPO PCW (for host mode) */
-- val = phy_read(phy, RG_PE1_H_LCDDS_SSC_PRD_REG);
-- val &= ~(RG_PE1_H_LCDDS_SSC_PRD);
-- val |= RG_PE1_H_LCDDS_SSC_PRD_VAL(0x18000000);
-- phy_write(phy, val, RG_PE1_H_LCDDS_SSC_PRD_REG);
--
-- /* DDS SSC dither period control */
-- val = phy_read(phy, RG_PE1_H_LCDDS_SSC_PRD_REG);
-- val &= ~(RG_PE1_H_LCDDS_SSC_PRD);
-- val |= RG_PE1_H_LCDDS_SSC_PRD_VAL(0x18d);
-- phy_write(phy, val, RG_PE1_H_LCDDS_SSC_PRD_REG);
--
-- /* DDS SSC dither amplitude control */
-- val = phy_read(phy, RG_PE1_H_LCDDS_SSC_DELTA_REG);
-- val &= ~(RG_PE1_H_LCDDS_SSC_DELTA |
-- RG_PE1_H_LCDDS_SSC_DELTA1);
-- val |= RG_PE1_H_LCDDS_SSC_DELTA_VAL(0x4a);
-- val |= RG_PE1_H_LCDDS_SSC_DELTA1_VAL(0x4a);
-- phy_write(phy, val, RG_PE1_H_LCDDS_SSC_DELTA_REG);
-- } else {
-- dev_info(dev, "Xtal is 20MHz\n");
-- }
-+ } else if (reg >= 6) { /* 25MHz Xal */
-+ mt7621_phy_rmw(phy, RG_PE1_H_PLL_REG,
-+ RG_PE1_H_PLL_PREDIV,
-+ RG_PE1_H_PLL_PREDIV_VAL(0x00));
-+ /* Select feedback clock */
-+ mt7621_phy_rmw(phy, RG_PE1_H_PLL_FBKSEL_REG,
-+ RG_PE1_H_PLL_FBKSEL,
-+ RG_PE1_H_PLL_FBKSEL_VAL(0x01));
-+ /* DDS NCPO PCW (for host mode) */
-+ mt7621_phy_rmw(phy, RG_PE1_H_LCDDS_SSC_PRD_REG,
-+ RG_PE1_H_LCDDS_SSC_PRD,
-+ RG_PE1_H_LCDDS_SSC_PRD_VAL(0x18000000));
-+ /* DDS SSC dither period control */
-+ mt7621_phy_rmw(phy, RG_PE1_H_LCDDS_SSC_PRD_REG,
-+ RG_PE1_H_LCDDS_SSC_PRD,
-+ RG_PE1_H_LCDDS_SSC_PRD_VAL(0x18d));
-+ /* DDS SSC dither amplitude control */
-+ mt7621_phy_rmw(phy, RG_PE1_H_LCDDS_SSC_DELTA_REG,
-+ RG_PE1_H_LCDDS_SSC_DELTA |
-+ RG_PE1_H_LCDDS_SSC_DELTA1,
-+ RG_PE1_H_LCDDS_SSC_DELTA_VAL(0x4a) |
-+ RG_PE1_H_LCDDS_SSC_DELTA1_VAL(0x4a));
-+ dev_info(dev, "Xtal is 25MHz\n");
-+ } else { /* 20MHz Xtal */
-+ mt7621_phy_rmw(phy, RG_PE1_H_PLL_REG,
-+ RG_PE1_H_PLL_PREDIV,
-+ RG_PE1_H_PLL_PREDIV_VAL(0x00));
-+
-+ dev_info(dev, "Xtal is 20MHz\n");
- }
-
- /* DDS clock inversion */
-- val = phy_read(phy, RG_PE1_LCDDS_CLK_PH_INV_REG);
-- val &= ~(RG_PE1_LCDDS_CLK_PH_INV);
-- val |= RG_PE1_LCDDS_CLK_PH_INV;
-- phy_write(phy, val, RG_PE1_LCDDS_CLK_PH_INV_REG);
-+ mt7621_phy_rmw(phy, RG_PE1_LCDDS_CLK_PH_INV_REG,
-+ RG_PE1_LCDDS_CLK_PH_INV, RG_PE1_LCDDS_CLK_PH_INV);
-
- /* Set PLL bits */
-- val = phy_read(phy, RG_PE1_H_PLL_REG);
-- val &= ~(RG_PE1_H_PLL_BC | RG_PE1_H_PLL_BP | RG_PE1_H_PLL_IR |
-- RG_PE1_H_PLL_IC | RG_PE1_PLL_DIVEN);
-- val |= RG_PE1_H_PLL_BC_VAL(0x02);
-- val |= RG_PE1_H_PLL_BP_VAL(0x06);
-- val |= RG_PE1_H_PLL_IR_VAL(0x02);
-- val |= RG_PE1_H_PLL_IC_VAL(0x01);
-- val |= RG_PE1_PLL_DIVEN_VAL(0x02);
-- phy_write(phy, val, RG_PE1_H_PLL_REG);
--
-- val = phy_read(phy, RG_PE1_H_PLL_BR_REG);
-- val &= ~(RG_PE1_H_PLL_BR);
-- val |= RG_PE1_H_PLL_BR_VAL(0x00);
-- phy_write(phy, val, RG_PE1_H_PLL_BR_REG);
-+ mt7621_phy_rmw(phy, RG_PE1_H_PLL_REG,
-+ RG_PE1_H_PLL_BC | RG_PE1_H_PLL_BP | RG_PE1_H_PLL_IR |
-+ RG_PE1_H_PLL_IC | RG_PE1_PLL_DIVEN,
-+ RG_PE1_H_PLL_BC_VAL(0x02) | RG_PE1_H_PLL_BP_VAL(0x06) |
-+ RG_PE1_H_PLL_IR_VAL(0x02) | RG_PE1_H_PLL_IC_VAL(0x01) |
-+ RG_PE1_PLL_DIVEN_VAL(0x02));
-+
-+ mt7621_phy_rmw(phy, RG_PE1_H_PLL_BR_REG,
-+ RG_PE1_H_PLL_BR, RG_PE1_H_PLL_BR_VAL(0x00));
-
- if (reg <= 5 && reg >= 3) { /* 40MHz Xtal */
- /* set force mode enable of da_pe1_mstckdiv */
-- val = phy_read(phy, RG_PE1_MSTCKDIV_REG);
-- val &= ~(RG_PE1_MSTCKDIV | RG_PE1_FRC_MSTCKDIV);
-- val |= (RG_PE1_MSTCKDIV_VAL(0x01) | RG_PE1_FRC_MSTCKDIV);
-- phy_write(phy, val, RG_PE1_MSTCKDIV_REG);
-+ mt7621_phy_rmw(phy, RG_PE1_MSTCKDIV_REG,
-+ RG_PE1_MSTCKDIV | RG_PE1_FRC_MSTCKDIV,
-+ RG_PE1_MSTCKDIV_VAL(0x01) | RG_PE1_FRC_MSTCKDIV);
- }
- }
-
-@@ -252,13 +240,11 @@ static int mt7621_pci_phy_power_on(struc
- struct mt7621_pci_phy *mphy = dev_get_drvdata(phy->dev.parent);
- u32 offset = (instance->index != 1) ?
- RG_PE1_FRC_PHY_REG : RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH;
-- u32 val;
-
- /* Enable PHY and disable force mode */
-- val = phy_read(mphy, offset);
-- val &= ~(RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN);
-- val |= (RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN);
-- phy_write(mphy, val, offset);
-+ mt7621_phy_rmw(mphy, offset,
-+ RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN,
-+ RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN);
-
- return 0;
- }
-@@ -269,13 +255,11 @@ static int mt7621_pci_phy_power_off(stru
- struct mt7621_pci_phy *mphy = dev_get_drvdata(phy->dev.parent);
- u32 offset = (instance->index != 1) ?
- RG_PE1_FRC_PHY_REG : RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH;
-- u32 val;
-
- /* Disable PHY */
-- val = phy_read(mphy, offset);
-- val &= ~(RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN);
-- val |= RG_PE1_FRC_PHY_EN;
-- phy_write(mphy, val, offset);
-+ mt7621_phy_rmw(mphy, offset,
-+ RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN,
-+ RG_PE1_FRC_PHY_EN);
-
- return 0;
- }
+++ /dev/null
-From 3faf4e1c537de86058fc22a851cd979489b9185e Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Wed, 18 Mar 2020 10:44:45 +0100
-Subject: [PATCH] staging: mt7621-pci: fix io space and properly set resource
- limits
-
-Function 'mt7621_pci_parse_request_of_pci_ranges' is using
-'of_pci_range_to_resource' to get both mem and io resources.
-Internally this function calls to 'pci_address_to_pio' which
-returns -1 if io space address is an address > IO_SPACE_LIMIT
-which is 0xFFFF for mips. This mt7621 soc has io space in physical
-address 0x1e160000. In order to fix this, overwrite invalid io
-0xffffffff with properly values from the device tree and set
-mapped address of this resource as io port base memory address
-calling 'set_io_port_base' function. There is also need to properly
-setup resource limits and io and memory windows with properly
-parsed values instead of set them as 'no limit' which it is wrong.
-For any reason I don't really know legacy driver sets up mem window
-as 0xFFFFFFFF and any other value seems to does not work as expected,
-so set up also here with same values.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200318094445.19669-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 43 +++++++++++++++++++--------------
- 1 file changed, 25 insertions(+), 18 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -118,6 +118,7 @@ struct mt7621_pcie_port {
- * @busn: bus range
- * @offset: IO / Memory offset
- * @dev: Pointer to PCIe device
-+ * @io_map_base: virtual memory base address for io
- * @ports: pointer to PCIe port information
- * @resets_inverted: depends on chip revision
- * reset lines are inverted.
-@@ -132,6 +133,7 @@ struct mt7621_pcie {
- resource_size_t mem;
- resource_size_t io;
- } offset;
-+ unsigned long io_map_base;
- struct list_head ports;
- bool resets_inverted;
- };
-@@ -291,22 +293,21 @@ static int mt7621_pci_parse_request_of_p
- }
-
- for_each_of_pci_range(&parser, &range) {
-- struct resource *res = NULL;
--
- switch (range.flags & IORESOURCE_TYPE_BITS) {
- case IORESOURCE_IO:
-- ioremap(range.cpu_addr, range.size);
-- res = &pcie->io;
-+ pcie->io_map_base =
-+ (unsigned long)ioremap(range.cpu_addr,
-+ range.size);
-+ of_pci_range_to_resource(&range, node, &pcie->io);
-+ pcie->io.start = range.cpu_addr;
-+ pcie->io.end = range.cpu_addr + range.size - 1;
- pcie->offset.io = 0x00000000UL;
- break;
- case IORESOURCE_MEM:
-- res = &pcie->mem;
-+ of_pci_range_to_resource(&range, node, &pcie->mem);
- pcie->offset.mem = 0x00000000UL;
- break;
- }
--
-- if (res)
-- of_pci_range_to_resource(&range, node, res);
- }
-
- err = of_pci_parse_bus_range(node, &pcie->busn);
-@@ -318,6 +319,8 @@ static int mt7621_pci_parse_request_of_p
- pcie->busn.flags = IORESOURCE_BUS;
- }
-
-+ set_io_port_base(pcie->io_map_base);
-+
- return 0;
- }
-
-@@ -548,6 +551,10 @@ static void mt7621_pcie_enable_ports(str
- u32 slot;
- u32 val;
-
-+ /* Setup MEMWIN and IOWIN */
-+ pcie_write(pcie, 0xffffffff, RALINK_PCI_MEMBASE);
-+ pcie_write(pcie, pcie->io.start, RALINK_PCI_IOBASE);
-+
- list_for_each_entry(port, &pcie->ports, list) {
- if (port->enabled) {
- mt7621_pcie_port_clk_enable(port);
-@@ -668,11 +675,17 @@ static int mt7621_pci_probe(struct platf
- return err;
- }
-
-+ err = mt7621_pci_parse_request_of_pci_ranges(pcie);
-+ if (err) {
-+ dev_err(dev, "Error requesting pci resources from ranges");
-+ goto out_release_gpios;
-+ }
-+
- /* set resources limits */
-- iomem_resource.start = 0;
-- iomem_resource.end = ~0UL; /* no limit */
-- ioport_resource.start = 0;
-- ioport_resource.end = ~0UL; /* no limit */
-+ iomem_resource.start = pcie->mem.start;
-+ iomem_resource.end = pcie->mem.end;
-+ ioport_resource.start = pcie->io.start;
-+ ioport_resource.end = pcie->io.end;
-
- mt7621_pcie_init_ports(pcie);
-
-@@ -685,12 +698,6 @@ static int mt7621_pci_probe(struct platf
-
- mt7621_pcie_enable_ports(pcie);
-
-- err = mt7621_pci_parse_request_of_pci_ranges(pcie);
-- if (err) {
-- dev_err(dev, "Error requesting pci resources from ranges");
-- goto out_release_gpios;
-- }
--
- setup_cm_memory_region(pcie);
-
- err = mt7621_pcie_request_resources(pcie, &res);
+++ /dev/null
-From 0a3085ae142d8f5cf905b104bc66db3721a2fa33 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Thu, 19 Mar 2020 10:57:33 +0100
-Subject: [PATCH] staging: mt7621-pci: fix register to set up virtual bridges
-
-Instead of being using PCI Configuration and Status Register to
-set up virtual bridges we are using CONFIG_ADDR Register which is
-wrong. Hence, set the correct value.
-
-Fixes: 9a5e71a68d20 ("staging: mt7621-pci: simplify 'mt7621_pcie_init_virtual_bridges' function")
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200319095733.1557-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -603,7 +603,7 @@ static int mt7621_pcie_init_virtual_brid
- if ((pcie_link_status & BIT(i)) == 0)
- p2p_br_devnum[i] = n++;
-
-- pcie_rmw(pcie, RALINK_PCI_CONFIG_ADDR,
-+ pcie_rmw(pcie, RALINK_PCI_PCICFG_ADDR,
- PCIE_P2P_BR_DEVNUM_MASK_FULL,
- (p2p_br_devnum[0] << PCIE_P2P_BR_DEVNUM0_SHIFT) |
- (p2p_br_devnum[1] << PCIE_P2P_BR_DEVNUM1_SHIFT) |
+++ /dev/null
-From 23a788c23ed10e0d79092fcb693dcf0e357e1f7e Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Thu, 19 Mar 2020 17:14:16 +0100
-Subject: [PATCH] staging: mt7621-pci: don't return if get gpio fails
-
-In some platforms gpio's are not used for reset but
-for other purposes. Because of that when we try to
-get them are valid gpio's but are already assigned
-to do other function. To avoid those kind of problems
-in those platforms just notice the fail in the kernel
-but continue doing normal boot.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200319161416.19033-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 6 ++----
- 1 file changed, 2 insertions(+), 4 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -363,10 +363,8 @@ static int mt7621_pcie_parse_port(struct
-
- port->gpio_rst = devm_gpiod_get_index_optional(dev, "reset", slot,
- GPIOD_OUT_LOW);
-- if (IS_ERR(port->gpio_rst)) {
-- dev_err(dev, "Failed to get GPIO for PCIe%d\n", slot);
-- return PTR_ERR(port->gpio_rst);
-- }
-+ if (IS_ERR(port->gpio_rst))
-+ dev_notice(dev, "Failed to get GPIO for PCIe%d\n", slot);
-
- port->slot = slot;
- port->pcie = pcie;
+++ /dev/null
-From 91eb47531421f0e8c9bc4594b4a7caa0e59dc83e Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Fri, 20 Mar 2020 12:01:19 +0100
-Subject: [PATCH] staging: mt7621-pci-phy: avoid to create to different phys
- for a dual port one
-
-This soc has two phy's for the pcie one of them using just a different
-register for settig it up but sharing all the rest of the config. Until
-now we was presenting this schema as three different phy's in the device
-tree using the 'phy-cells' node property to discriminate an index and
-setting up a complete phy for the dual port index. This sometimes worked
-properly but reconfiguring the same registers twice presents sometimes
-some unstable pcie links and the ports was not properly being detected.
-The problems only appears on hard resets and soft resets was properly
-working. Instead of having this schema just set two phy's in the device
-ree and use the 'phy-cells' property to say if the port has or not a dual
-port. Doing this configuration and set up becomes easier, LOC is decreased
-and the behaviour also gets deterministic with properly and stable pcie
-links in both hard and soft resets.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200320110123.9907-2-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c | 144 ++++++++++--------------
- 1 file changed, 59 insertions(+), 85 deletions(-)
-
---- a/drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c
-+++ b/drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c
-@@ -78,31 +78,21 @@
- #define MAX_PHYS 2
-
- /**
-- * struct mt7621_pci_phy_instance - Mt7621 Pcie PHY device
-- * @phy: pointer to the kernel PHY device
-- * @port_base: base register
-- * @index: internal ID to identify the Mt7621 PCIe PHY
-- */
--struct mt7621_pci_phy_instance {
-- struct phy *phy;
-- void __iomem *port_base;
-- u32 index;
--};
--
--/**
- * struct mt7621_pci_phy - Mt7621 Pcie PHY core
- * @dev: pointer to device
- * @regmap: kernel regmap pointer
-- * @phys: pointer to Mt7621 PHY device
-- * @nphys: number of PHY devices for this core
-+ * @phy: pointer to the kernel PHY device
-+ * @port_base: base register
-+ * @has_dual_port: if the phy has dual ports.
- * @bypass_pipe_rst: mark if 'mt7621_bypass_pipe_rst'
- * needs to be executed. Depends on chip revision.
- */
- struct mt7621_pci_phy {
- struct device *dev;
- struct regmap *regmap;
-- struct mt7621_pci_phy_instance **phys;
-- int nphys;
-+ struct phy *phy;
-+ void __iomem *port_base;
-+ bool has_dual_port;
- bool bypass_pipe_rst;
- };
-
-@@ -130,23 +120,23 @@ static inline void mt7621_phy_rmw(struct
- phy_write(phy, val, reg);
- }
-
--static void mt7621_bypass_pipe_rst(struct mt7621_pci_phy *phy,
-- struct mt7621_pci_phy_instance *instance)
-+static void mt7621_bypass_pipe_rst(struct mt7621_pci_phy *phy)
- {
-- u32 offset = (instance->index != 1) ?
-- RG_PE1_PIPE_REG : RG_PE1_PIPE_REG + RG_P0_TO_P1_WIDTH;
-+ mt7621_phy_rmw(phy, RG_PE1_PIPE_REG, 0, RG_PE1_PIPE_RST);
-+ mt7621_phy_rmw(phy, RG_PE1_PIPE_REG, 0, RG_PE1_PIPE_CMD_FRC);
-
-- mt7621_phy_rmw(phy, offset,
-- RG_PE1_PIPE_RST | RG_PE1_PIPE_CMD_FRC,
-- RG_PE1_PIPE_RST | RG_PE1_PIPE_CMD_FRC);
-+ if (phy->has_dual_port) {
-+ mt7621_phy_rmw(phy, RG_PE1_PIPE_REG + RG_P0_TO_P1_WIDTH,
-+ 0, RG_PE1_PIPE_RST);
-+ mt7621_phy_rmw(phy, RG_PE1_PIPE_REG + RG_P0_TO_P1_WIDTH,
-+ 0, RG_PE1_PIPE_CMD_FRC);
-+ }
- }
-
--static void mt7621_set_phy_for_ssc(struct mt7621_pci_phy *phy,
-- struct mt7621_pci_phy_instance *instance)
-+static void mt7621_set_phy_for_ssc(struct mt7621_pci_phy *phy)
- {
- struct device *dev = phy->dev;
- u32 reg = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG0);
-- u32 offset;
-
- reg = (reg >> 6) & 0x7;
- /* Set PCIe Port PHY to disable SSC */
-@@ -156,10 +146,13 @@ static void mt7621_set_phy_for_ssc(struc
- RG_PE1_FRC_H_XTAL_TYPE | RG_PE1_H_XTAL_TYPE_VAL(0x00));
-
- /* disable port */
-- offset = (instance->index != 1) ?
-- RG_PE1_FRC_PHY_REG : RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH;
-- mt7621_phy_rmw(phy, offset,
-- RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN, RG_PE1_FRC_PHY_EN);
-+ mt7621_phy_rmw(phy, RG_PE1_FRC_PHY_REG,
-+ RG_PE1_PHY_EN, RG_PE1_FRC_PHY_EN);
-+
-+ if (phy->has_dual_port) {
-+ mt7621_phy_rmw(phy, RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH,
-+ RG_PE1_PHY_EN, RG_PE1_FRC_PHY_EN);
-+ }
-
- if (reg <= 5 && reg >= 3) { /* 40MHz Xtal */
- /* Set Pre-divider ratio (for host mode) */
-@@ -223,43 +216,44 @@ static void mt7621_set_phy_for_ssc(struc
-
- static int mt7621_pci_phy_init(struct phy *phy)
- {
-- struct mt7621_pci_phy_instance *instance = phy_get_drvdata(phy);
-- struct mt7621_pci_phy *mphy = dev_get_drvdata(phy->dev.parent);
-+ struct mt7621_pci_phy *mphy = phy_get_drvdata(phy);
-
- if (mphy->bypass_pipe_rst)
-- mt7621_bypass_pipe_rst(mphy, instance);
-+ mt7621_bypass_pipe_rst(mphy);
-
-- mt7621_set_phy_for_ssc(mphy, instance);
-+ mt7621_set_phy_for_ssc(mphy);
-
- return 0;
- }
-
- static int mt7621_pci_phy_power_on(struct phy *phy)
- {
-- struct mt7621_pci_phy_instance *instance = phy_get_drvdata(phy);
-- struct mt7621_pci_phy *mphy = dev_get_drvdata(phy->dev.parent);
-- u32 offset = (instance->index != 1) ?
-- RG_PE1_FRC_PHY_REG : RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH;
-+ struct mt7621_pci_phy *mphy = phy_get_drvdata(phy);
-
- /* Enable PHY and disable force mode */
-- mt7621_phy_rmw(mphy, offset,
-- RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN,
-- RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN);
-+ mt7621_phy_rmw(mphy, RG_PE1_FRC_PHY_REG,
-+ RG_PE1_FRC_PHY_EN, RG_PE1_PHY_EN);
-+
-+ if (mphy->has_dual_port) {
-+ mt7621_phy_rmw(mphy, RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH,
-+ RG_PE1_FRC_PHY_EN, RG_PE1_PHY_EN);
-+ }
-
- return 0;
- }
-
- static int mt7621_pci_phy_power_off(struct phy *phy)
- {
-- struct mt7621_pci_phy_instance *instance = phy_get_drvdata(phy);
-- struct mt7621_pci_phy *mphy = dev_get_drvdata(phy->dev.parent);
-- u32 offset = (instance->index != 1) ?
-- RG_PE1_FRC_PHY_REG : RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH;
-+ struct mt7621_pci_phy *mphy = phy_get_drvdata(phy);
-
- /* Disable PHY */
-- mt7621_phy_rmw(mphy, offset,
-- RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN,
-- RG_PE1_FRC_PHY_EN);
-+ mt7621_phy_rmw(mphy, RG_PE1_FRC_PHY_REG,
-+ RG_PE1_PHY_EN, RG_PE1_FRC_PHY_EN);
-+
-+ if (mphy->has_dual_port) {
-+ mt7621_phy_rmw(mphy, RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH,
-+ RG_PE1_PHY_EN, RG_PE1_FRC_PHY_EN);
-+ }
-
- return 0;
- }
-@@ -282,13 +276,15 @@ static struct phy *mt7621_pcie_phy_of_xl
- {
- struct mt7621_pci_phy *mt7621_phy = dev_get_drvdata(dev);
-
-- if (args->args_count == 0)
-- return mt7621_phy->phys[0]->phy;
--
- if (WARN_ON(args->args[0] >= MAX_PHYS))
- return ERR_PTR(-ENODEV);
-
-- return mt7621_phy->phys[args->args[0]]->phy;
-+ mt7621_phy->has_dual_port = args->args[0];
-+
-+ dev_info(dev, "PHY for 0x%08x (dual port = %d)\n",
-+ (unsigned int)mt7621_phy->port_base, mt7621_phy->has_dual_port);
-+
-+ return mt7621_phy->phy;
- }
-
- static const struct soc_device_attribute mt7621_pci_quirks_match[] = {
-@@ -309,19 +305,11 @@ static int mt7621_pci_phy_probe(struct p
- struct phy_provider *provider;
- struct mt7621_pci_phy *phy;
- struct resource *res;
-- int port;
-- void __iomem *port_base;
-
- phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
- if (!phy)
- return -ENOMEM;
-
-- phy->nphys = MAX_PHYS;
-- phy->phys = devm_kcalloc(dev, phy->nphys,
-- sizeof(*phy->phys), GFP_KERNEL);
-- if (!phy->phys)
-- return -ENOMEM;
--
- attr = soc_device_match(mt7621_pci_quirks_match);
- if (attr)
- phy->bypass_pipe_rst = true;
-@@ -335,39 +323,25 @@ static int mt7621_pci_phy_probe(struct p
- return -ENXIO;
- }
-
-- port_base = devm_ioremap_resource(dev, res);
-- if (IS_ERR(port_base)) {
-+ phy->port_base = devm_ioremap_resource(dev, res);
-+ if (IS_ERR(phy->port_base)) {
- dev_err(dev, "failed to remap phy regs\n");
-- return PTR_ERR(port_base);
-+ return PTR_ERR(phy->port_base);
- }
-
-- phy->regmap = devm_regmap_init_mmio(phy->dev, port_base,
-+ phy->regmap = devm_regmap_init_mmio(phy->dev, phy->port_base,
- &mt7621_pci_phy_regmap_config);
- if (IS_ERR(phy->regmap))
- return PTR_ERR(phy->regmap);
-
-- for (port = 0; port < MAX_PHYS; port++) {
-- struct mt7621_pci_phy_instance *instance;
-- struct phy *pphy;
--
-- instance = devm_kzalloc(dev, sizeof(*instance), GFP_KERNEL);
-- if (!instance)
-- return -ENOMEM;
--
-- phy->phys[port] = instance;
--
-- pphy = devm_phy_create(dev, dev->of_node, &mt7621_pci_phy_ops);
-- if (IS_ERR(phy)) {
-- dev_err(dev, "failed to create phy\n");
-- return PTR_ERR(phy);
-- }
--
-- instance->port_base = port_base;
-- instance->phy = pphy;
-- instance->index = port;
-- phy_set_drvdata(pphy, instance);
-+ phy->phy = devm_phy_create(dev, dev->of_node, &mt7621_pci_phy_ops);
-+ if (IS_ERR(phy)) {
-+ dev_err(dev, "failed to create phy\n");
-+ return PTR_ERR(phy);
- }
-
-+ phy_set_drvdata(phy->phy, phy);
-+
- provider = devm_of_phy_provider_register(dev, mt7621_pcie_phy_of_xlate);
-
- return PTR_ERR_OR_ZERO(provider);
+++ /dev/null
-From c752b54bda4d772426c5eeb56978d2e41bd525b4 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Fri, 20 Mar 2020 12:01:21 +0100
-Subject: [PATCH] staging: mt7621-pci: use only two phys from device tree
-
-In order to align work with the mt7621-pci-phy part of
-the driver and device tree which is now using only two
-real phys one of them dual ported properly parse the
-device tree and don't call phy initialization for the
-slot 1 because is being taking into account when the
-phy for the slot 0 is instantiated.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200320110123.9907-4-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 7 ++++++-
- 1 file changed, 6 insertions(+), 1 deletion(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -358,7 +358,7 @@ static int mt7621_pcie_parse_port(struct
-
- snprintf(name, sizeof(name), "pcie-phy%d", slot);
- port->phy = devm_phy_get(dev, name);
-- if (IS_ERR(port->phy))
-+ if (IS_ERR(port->phy) && slot != 1)
- return PTR_ERR(port->phy);
-
- port->gpio_rst = devm_gpiod_get_index_optional(dev, "reset", slot,
-@@ -495,6 +495,11 @@ static void mt7621_pcie_init_ports(struc
- list_for_each_entry_safe(port, tmp, &pcie->ports, list) {
- u32 slot = port->slot;
-
-+ if (slot == 1) {
-+ port->enabled = true;
-+ continue;
-+ }
-+
- err = mt7621_pcie_init_port(port);
- if (err) {
- dev_err(dev, "Initiating port %d failed\n", slot);
+++ /dev/null
-From b59343b7de448c30e5b098484a7c7c5cb300df2f Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Fri, 20 Mar 2020 12:01:22 +0100
-Subject: [PATCH] staging: mt7621-pci: change variable to print for slot
-
-We are using the counter to print the slot which has been
-enabled. Use the correct associated slot for the port instead.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200320110123.9907-5-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -562,7 +562,7 @@ static void mt7621_pcie_enable_ports(str
- if (port->enabled) {
- mt7621_pcie_port_clk_enable(port);
- mt7621_pcie_enable_port(port);
-- dev_info(dev, "PCIE%d enabled\n", num_slots_enabled);
-+ dev_info(dev, "PCIE%d enabled\n", port->slot);
- num_slots_enabled++;
- }
- }
+++ /dev/null
-From 87068309300c707d659ce79232eae827604804a4 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Fri, 20 Mar 2020 12:01:23 +0100
-Subject: [PATCH] staging: mt7621-pci: be sure gpio descriptor is null on fails
-
-Function 'devm_gpiod_get_index_optional' returns NULL if the
-descriptor is invalid and the error associated for the error
-pointer is ENOENT. Sometimes if the pin is just assigned the
-error associated for the pointer might not be ENOENT but other.
-In order to avoid weirds behaviours if this happen set descriptor
-to NULL in the driver port structure.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200320110123.9907-6-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -363,8 +363,10 @@ static int mt7621_pcie_parse_port(struct
-
- port->gpio_rst = devm_gpiod_get_index_optional(dev, "reset", slot,
- GPIOD_OUT_LOW);
-- if (IS_ERR(port->gpio_rst))
-+ if (IS_ERR(port->gpio_rst)) {
- dev_notice(dev, "Failed to get GPIO for PCIe%d\n", slot);
-+ port->gpio_rst = NULL;
-+ }
-
- port->slot = slot;
- port->pcie = pcie;
+++ /dev/null
-From d81fe3c13aa6f4ab1ec318212d2007175e6d05aa Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Fri, 20 Mar 2020 16:38:37 +0100
-Subject: [PATCH] staging: mt7621-pci: avoid to poweroff the phy for slot one
-
-Phy for slot 0 and 1 is shared and handled properly in slot 0.
-If there is only one port in use,(slot 0) we shall not call the
-'phy_power_off' function with an invalid slot because kernel
-will crash with an unaligned access fault like the following:
-
-mt7621-pci 1e140000.pcie: Error applying setting, reverse things back
-mt7621-pci-phy 1e149000.pcie-phy: PHY for 0xbe149000 (dual port = 1)
-mt7621-pci-phy 1e14a000.pcie-phy: PHY for 0xbe14a000 (dual port = 0)
-mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz
-mt7621-pci-phy 1e14a000.pcie-phy: Xtal is 40MHz
-mt7621-pci 1e140000.pcie: pcie1 no card, disable it (RST & CLK)
-Unhandled kernel unaligned access[#1]:
-CPU: 3 PID: 111 Comm: kworker/3:2 Not tainted 5.6.0-rc3-00347-g825c6f470c62-dirty #9
-Workqueue: events deferred_probe_work_func
-$ 0 : 00000000 00000001 5f60d043 8fe1ba80
-$ 4 : 0000010d 01eb9000 00000000 00000000
-$ 8 : 294b4c00 80940000 00000008 000000ce
-$12 : 2e303030 00000000 00000000 65696370
-$16 : ffffffed 0000010d 8e373cd0 8214c1e0
-$20 : 00000000 82144c80 82144680 8214c250
-$24 : 00000018 803ef8f4
-$28 : 8e372000 8e373c60 8214c080 803940e8
-Hi : 00000125
-Lo : 122f2000
-epc : 807b3328 mutex_lock+0x8/0x44
-ra : 803940e8 phy_power_off+0x28/0xb0
-Status: 1100fc03 KERNEL EXL IE
-Cause : 00800010 (ExcCode 04)
-BadVA : 0000010d
-PrId : 0001992f (MIPS 1004Kc)
-Modules linked in:
-Process kworker/3:2 (pid: 111, threadinfo=(ptrval), task=(ptrval), tls=00000000)
-Stack : 8e373cd0 803fe4f4 8e372000 8e373c90 8214c080 804fde1c 8e373c98 808d62f4
- 8e373c78 00000000 8214c254 804fe648 1e160000 804f27b8 00000001 808d62f4
- 00000000 00000001 8214c228 808d62f4 80930000 809a0000 8fd47e10 808d63d4
- 808d62d4 8fd47e10 808d0000 808d0000 8e373cd0 8e373cd0 809e2a74 809db510
- 809db510 00000006 00000001 00000000 00000000 00000000 01000000 1e1440ff
- ...
-Call Trace:
-[<807b3328>] mutex_lock+0x8/0x44
-[<803940e8>] phy_power_off+0x28/0xb0
-[<804fe648>] mt7621_pci_probe+0xc20/0xd18
-[<80402ab8>] platform_drv_probe+0x40/0x94
-[<80400a74>] really_probe+0x104/0x364
-[<803feb74>] bus_for_each_drv+0x84/0xdc
-[<80400924>] __device_attach+0xdc/0x120
-[<803ffb5c>] bus_probe_device+0xa0/0xbc
-[<80400124>] deferred_probe_work_func+0x7c/0xbc
-[<800420e8>] process_one_work+0x230/0x450
-[<80042638>] worker_thread+0x330/0x5fc
-[<80048eb0>] kthread+0x12c/0x134
-[<80007438>] ret_from_kernel_thread+0x14/0x1c
-Code: 24050002 27bdfff8 8f830000 <c0850000> 14a00005 00000000 00600825 e0810000 1020fffa
-
-Fixes: bf516f413f4e ("staging: mt7621-pci: use only two phys from device tree")
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200320153837.20415-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -517,7 +517,8 @@ static void mt7621_pcie_init_ports(struc
- if (!mt7621_pcie_port_is_linkup(port)) {
- dev_err(dev, "pcie%d no card, disable it (RST & CLK)\n",
- slot);
-- phy_power_off(port->phy);
-+ if (slot != 1)
-+ phy_power_off(port->phy);
- mt7621_control_assert(port);
- mt7621_pcie_port_clk_disable(port);
- port->enabled = false;
+++ /dev/null
-From 9d789a7728c37e8730b6a9cca60cf155f18537ea Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Sat, 21 Mar 2020 08:26:50 +0100
-Subject: [PATCH] staging: mt7621-pci: delete release gpios related code
-
-Making gpio8 and gpio9 vendor specific and putting them
-into the specific dts file makes not needed to release
-gpios anymore because we are not occupying those pins
-in the first place if it is not necessary. When the
-device tree is parsed we can also check and return for
-the error because we rely in the fact that the related
-device for the board is correct.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200321072650.7784-3-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 27 +++++++--------------------
- 1 file changed, 7 insertions(+), 20 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -364,8 +364,8 @@ static int mt7621_pcie_parse_port(struct
- port->gpio_rst = devm_gpiod_get_index_optional(dev, "reset", slot,
- GPIOD_OUT_LOW);
- if (IS_ERR(port->gpio_rst)) {
-- dev_notice(dev, "Failed to get GPIO for PCIe%d\n", slot);
-- port->gpio_rst = NULL;
-+ dev_err(dev, "Failed to get GPIO for PCIe%d\n", slot);
-+ return PTR_ERR(port->gpio_rst);
- }
-
- port->slot = slot;
-@@ -474,15 +474,6 @@ static void mt7621_pcie_reset_ep_deasser
- mdelay(PERST_DELAY_MS);
- }
-
--static void mt7621_pcie_release_gpios(struct mt7621_pcie *pcie)
--{
-- struct mt7621_pcie_port *port;
--
-- list_for_each_entry(port, &pcie->ports, list)
-- if (port->gpio_rst)
-- gpiod_put(port->gpio_rst);
--}
--
- static void mt7621_pcie_init_ports(struct mt7621_pcie *pcie)
- {
- struct device *dev = pcie->dev;
-@@ -684,7 +675,7 @@ static int mt7621_pci_probe(struct platf
- err = mt7621_pci_parse_request_of_pci_ranges(pcie);
- if (err) {
- dev_err(dev, "Error requesting pci resources from ranges");
-- goto out_release_gpios;
-+ return err;
- }
-
- /* set resources limits */
-@@ -698,8 +689,7 @@ static int mt7621_pci_probe(struct platf
- err = mt7621_pcie_init_virtual_bridges(pcie);
- if (err) {
- dev_err(dev, "Nothing is connected in virtual bridges. Exiting...");
-- err = 0;
-- goto out_release_gpios;
-+ return 0;
- }
-
- mt7621_pcie_enable_ports(pcie);
-@@ -709,19 +699,16 @@ static int mt7621_pci_probe(struct platf
- err = mt7621_pcie_request_resources(pcie, &res);
- if (err) {
- dev_err(dev, "Error requesting resources\n");
-- goto out_release_gpios;
-+ return err;
- }
-
- err = mt7621_pcie_register_host(bridge, &res);
- if (err) {
- dev_err(dev, "Error registering host\n");
-- goto out_release_gpios;
-+ return err;
- }
-
--out_release_gpios:
-- mt7621_pcie_release_gpios(pcie);
--
-- return err;
-+ return 0;
- }
-
- static const struct of_device_id mt7621_pci_ids[] = {
+++ /dev/null
-From 60a15339ceab9fc2a6cdc85fd54b66b2c947ab4e Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Sat, 21 Mar 2020 14:36:21 +0100
-Subject: [PATCH] staging: mt7621-pci: use builtin_platform_driver()
-
-Macro builtin_platform_driver can be used for builtin drivers
-that don't do anything in driver init. So, use the macro
-builtin_platform_driver and remove some boilerplate code.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200321133624.31388-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 7 +------
- 1 file changed, 1 insertion(+), 6 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -725,9 +725,4 @@ static struct platform_driver mt7621_pci
- },
- };
-
--static int __init mt7621_pci_init(void)
--{
-- return platform_driver_register(&mt7621_pci_driver);
--}
--
--module_init(mt7621_pci_init);
-+builtin_platform_driver(mt7621_pci_driver);
+++ /dev/null
-From ffe3dee4081055b4f58bc50dd3f5c97de42cf126 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Sat, 21 Mar 2020 14:36:23 +0100
-Subject: [PATCH] staging: mt7621-pci-phy: use builtin_platform_driver()
-
-Macro builtin_platform_driver can be used for builtin drivers
-that don't do anything in driver init. So, use the macro
-builtin_platform_driver and remove some boilerplate code.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200321133624.31388-3-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c | 7 +------
- 1 file changed, 1 insertion(+), 6 deletions(-)
-
---- a/drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c
-+++ b/drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c
-@@ -361,12 +361,7 @@ static struct platform_driver mt7621_pci
- },
- };
-
--static int __init mt7621_pci_phy_drv_init(void)
--{
-- return platform_driver_register(&mt7621_pci_phy_driver);
--}
--
--module_init(mt7621_pci_phy_drv_init);
-+builtin_platform_driver(mt7621_pci_phy_driver);
-
- MODULE_AUTHOR("Sergio Paracuellos <sergio.paracuellos@gmail.com>");
- MODULE_DESCRIPTION("MediaTek MT7621 PCIe PHY driver");
+++ /dev/null
-From ff83e3023cb8fc3b5dfc12e0c91bf1eb9dc4c4c6 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Sat, 21 Mar 2020 14:36:24 +0100
-Subject: [PATCH] staging: mt7621-pci-phy: re-do 'xtal_mode' detection
-
-Detection of the Xtal mode is using magic numbers that
-can be avoided using properly some definitions and a more
-accurate variable name from 'reg' into 'xtal_mode'. This
-increase readability.
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200321133624.31388-4-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c | 15 ++++++++++-----
- 1 file changed, 10 insertions(+), 5 deletions(-)
-
---- a/drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c
-+++ b/drivers/staging/mt7621-pci-phy/pci-mt7621-phy.c
-@@ -75,6 +75,9 @@
-
- #define RG_PE1_FRC_MSTCKDIV BIT(5)
-
-+#define XTAL_MODE_SEL_SHIFT 6
-+#define XTAL_MODE_SEL_MASK 0x7
-+
- #define MAX_PHYS 2
-
- /**
-@@ -136,9 +139,11 @@ static void mt7621_bypass_pipe_rst(struc
- static void mt7621_set_phy_for_ssc(struct mt7621_pci_phy *phy)
- {
- struct device *dev = phy->dev;
-- u32 reg = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG0);
-+ u32 xtal_mode;
-+
-+ xtal_mode = (rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG0)
-+ >> XTAL_MODE_SEL_SHIFT) & XTAL_MODE_SEL_MASK;
-
-- reg = (reg >> 6) & 0x7;
- /* Set PCIe Port PHY to disable SSC */
- /* Debug Xtal Type */
- mt7621_phy_rmw(phy, RG_PE1_FRC_H_XTAL_REG,
-@@ -154,13 +159,13 @@ static void mt7621_set_phy_for_ssc(struc
- RG_PE1_PHY_EN, RG_PE1_FRC_PHY_EN);
- }
-
-- if (reg <= 5 && reg >= 3) { /* 40MHz Xtal */
-+ if (xtal_mode <= 5 && xtal_mode >= 3) { /* 40MHz Xtal */
- /* Set Pre-divider ratio (for host mode) */
- mt7621_phy_rmw(phy, RG_PE1_H_PLL_REG,
- RG_PE1_H_PLL_PREDIV,
- RG_PE1_H_PLL_PREDIV_VAL(0x01));
- dev_info(dev, "Xtal is 40MHz\n");
-- } else if (reg >= 6) { /* 25MHz Xal */
-+ } else if (xtal_mode >= 6) { /* 25MHz Xal */
- mt7621_phy_rmw(phy, RG_PE1_H_PLL_REG,
- RG_PE1_H_PLL_PREDIV,
- RG_PE1_H_PLL_PREDIV_VAL(0x00));
-@@ -206,7 +211,7 @@ static void mt7621_set_phy_for_ssc(struc
- mt7621_phy_rmw(phy, RG_PE1_H_PLL_BR_REG,
- RG_PE1_H_PLL_BR, RG_PE1_H_PLL_BR_VAL(0x00));
-
-- if (reg <= 5 && reg >= 3) { /* 40MHz Xtal */
-+ if (xtal_mode <= 5 && xtal_mode >= 3) { /* 40MHz Xtal */
- /* set force mode enable of da_pe1_mstckdiv */
- mt7621_phy_rmw(phy, RG_PE1_MSTCKDIV_REG,
- RG_PE1_MSTCKDIV | RG_PE1_FRC_MSTCKDIV,
+++ /dev/null
-From 4f0f36b67564311a4ce4441510ef94848febbab2 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Sun, 22 Mar 2020 08:21:28 +0100
-Subject: [PATCH] staging: mt7621-pci: avoid to set 'iomem_resource' addresses
-
-Setting up kernel resource 'iomem_resource' for PCI with
-addresses parsed from device tree gots into a conflict within
-the usb xhci driver:
-
-xhci-mtk 1e1c0000.xhci: can't request region for resource [mem 0x1e1c0000-0x1e1c0fff]
-xhci-mtk: probe of 1e1c0000.xhci failed with error -16
-
-Don't assign it and maintain the default addresses for this
-resource seems to fix the problem. Checking legacy driver it
-is being only setting the 'ioport_resource'.
-
-Fixes: 09dd629eeabb ("staging: mt7621-pci: fix io space and properly set resource limits")
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200322072128.4454-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 2 --
- 1 file changed, 2 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -679,8 +679,6 @@ static int mt7621_pci_probe(struct platf
- }
-
- /* set resources limits */
-- iomem_resource.start = pcie->mem.start;
-- iomem_resource.end = pcie->mem.end;
- ioport_resource.start = pcie->io.start;
- ioport_resource.end = pcie->io.end;
-
+++ /dev/null
-From 5fcded5e857cf66c9592e4be28c4dab4520c9177 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Thu, 9 Apr 2020 13:16:52 +0200
-Subject: [PATCH] staging: mt7621-pci: properly power off dual-ported pcie phy
-
-Pcie phy for pcie0 and pcie1 is shared using a dual ported
-one. Current code was assuming that if nothing is connected
-in pcie0 it won't be also nothing connected in pcie1. This
-assumtion is wrong for some devices such us 'Mikrotik rbm33g'
-and 'ZyXEL LTE3301-PLUS' where only connecting a card to the
-second bus on the phy is possible. For such devices kernel
-hangs in the same point because of the wrong poweroff of the
-phy getting the following trace:
-
-mt7621-pci-phy 1e149000.pcie-phy: PHY for 0xbe149000 (dual port = 1)
-mt7621-pci-phy 1e14a000.pcie-phy: PHY for 0xbe14a000 (dual port = 0)
-mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz
-mt7621-pci-phy 1e14a000.pcie-phy: Xtal is 40MHz
-mt7621-pci 1e140000.pcie: pcie0 no card, disable it (RST & CLK)
-[hangs]
-
-The wrong assumption is located in the 'mt7621_pcie_init_ports'
-function where we are just making a power off of the phy for
-slots 0 and 2 if nothing is connected in them. Hence, only
-poweroff the phy if nothing is connected in both slot 0 and
-slot 1 avoiding the kernel to hang.
-
-Fixes: 5737cfe87a9c ("staging: mt7621-pci: avoid to poweroff the phy for slot one")
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200409111652.30964-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-pci/pci-mt7621.c | 12 ++++++++++--
- 1 file changed, 10 insertions(+), 2 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -502,17 +502,25 @@ static void mt7621_pcie_init_ports(struc
-
- mt7621_pcie_reset_ep_deassert(pcie);
-
-+ tmp = NULL;
- list_for_each_entry(port, &pcie->ports, list) {
- u32 slot = port->slot;
-
- if (!mt7621_pcie_port_is_linkup(port)) {
- dev_err(dev, "pcie%d no card, disable it (RST & CLK)\n",
- slot);
-- if (slot != 1)
-- phy_power_off(port->phy);
- mt7621_control_assert(port);
- mt7621_pcie_port_clk_disable(port);
- port->enabled = false;
-+
-+ if (slot == 0) {
-+ tmp = port;
-+ continue;
-+ }
-+
-+ if (slot == 1 && tmp && !tmp->enabled)
-+ phy_power_off(tmp->phy);
-+
- }
- }
- }
+++ /dev/null
-From fab6710e4c51f4eb622f95a08322ab5fdbe3f295 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Mon, 13 Apr 2020 07:59:42 +0200
-Subject: [PATCH] staging: mt7621-pci: fix PCIe interrupt mapping
-
-MT7621 has three assigned interrupts for the pcie. This
-interrupts should properly being mapped taking into account
-which devices are finally connected in which bus according
-to link status. So the irq mappings should be as follows
-according to link status (three bits indicating which devices
-are link up):
-
-* For PCIe Bus 1 slot 0:
- - status = 0x2 || status = 0x6 => IRQ = pcie1_irq (24).
- - status = 0x4 => IRQ = pcie2_irq (25).
- - default => IRQ = pcie0_irq (23).
-* For PCIe Bus 2 slot 0:
- - status = 0x5 || status = 0x6 => IRQ = pcie2_irq (25).
- - default => IRQ = pcie1_irq (24).
-* For PCIe Bus 2 slot 1:
- - status = 0x5 || status = 0x6 => IRQ = pcie2_irq (25).
- - default => IRQ = pcie1_irq (24).
-* For PCIe Bus 3 any slot:
- - default => IRQ = pcie2_irq (25).
-
-Because of this, the function 'of_irq_parse_and_map_pci' cannot
-be used and we need to change device tree information from using
-the 'interrupt-map' and 'interrupt-map-mask' properties into an
-'interrupts' property to be able to get irq information from the
-ports using the 'platform_get_irq' and storing an 'irq-map' into
-the pcie driver data node to properly map correct irq using a
-new 'mt7621_map_irq' function where this map will be read and the
-correct irq returned.
-
-Fixes: 46d093124df4 ("staging: mt7621-pci: improve interrupt mapping")
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Link: https://lore.kernel.org/r/20200413055942.2714-1-sergio.paracuellos@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/staging/mt7621-dts/mt7621.dtsi | 9 +++----
- drivers/staging/mt7621-pci/pci-mt7621.c | 36 +++++++++++++++++++++++--
- 2 files changed, 38 insertions(+), 7 deletions(-)
-
---- a/drivers/staging/mt7621-pci/pci-mt7621.c
-+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
-@@ -97,6 +97,7 @@
- * @pcie_rst: pointer to port reset control
- * @gpio_rst: gpio reset
- * @slot: port slot
-+ * @irq: GIC irq
- * @enabled: indicates if port is enabled
- */
- struct mt7621_pcie_port {
-@@ -107,6 +108,7 @@ struct mt7621_pcie_port {
- struct reset_control *pcie_rst;
- struct gpio_desc *gpio_rst;
- u32 slot;
-+ int irq;
- bool enabled;
- };
-
-@@ -120,6 +122,7 @@ struct mt7621_pcie_port {
- * @dev: Pointer to PCIe device
- * @io_map_base: virtual memory base address for io
- * @ports: pointer to PCIe port information
-+ * @irq_map: irq mapping info according pcie link status
- * @resets_inverted: depends on chip revision
- * reset lines are inverted.
- */
-@@ -135,6 +138,7 @@ struct mt7621_pcie {
- } offset;
- unsigned long io_map_base;
- struct list_head ports;
-+ int irq_map[PCIE_P2P_MAX];
- bool resets_inverted;
- };
-
-@@ -279,6 +283,16 @@ static void setup_cm_memory_region(struc
- }
- }
-
-+static int mt7621_map_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
-+{
-+ struct mt7621_pcie *pcie = pdev->bus->sysdata;
-+ struct device *dev = pcie->dev;
-+ int irq = pcie->irq_map[slot];
-+
-+ dev_info(dev, "bus=%d slot=%d irq=%d\n", pdev->bus->number, slot, irq);
-+ return irq;
-+}
-+
- static int mt7621_pci_parse_request_of_pci_ranges(struct mt7621_pcie *pcie)
- {
- struct device *dev = pcie->dev;
-@@ -330,6 +344,7 @@ static int mt7621_pcie_parse_port(struct
- {
- struct mt7621_pcie_port *port;
- struct device *dev = pcie->dev;
-+ struct platform_device *pdev = to_platform_device(dev);
- struct device_node *pnode = dev->of_node;
- struct resource regs;
- char name[10];
-@@ -371,6 +386,12 @@ static int mt7621_pcie_parse_port(struct
- port->slot = slot;
- port->pcie = pcie;
-
-+ port->irq = platform_get_irq(pdev, slot);
-+ if (port->irq < 0) {
-+ dev_err(dev, "Failed to get IRQ for PCIe%d\n", slot);
-+ return -ENXIO;
-+ }
-+
- INIT_LIST_HEAD(&port->list);
- list_add_tail(&port->list, &pcie->ports);
-
-@@ -585,13 +606,15 @@ static int mt7621_pcie_init_virtual_brid
- {
- u32 pcie_link_status = 0;
- u32 n;
-- int i;
-+ int i = 0;
- u32 p2p_br_devnum[PCIE_P2P_MAX];
-+ int irqs[PCIE_P2P_MAX];
- struct mt7621_pcie_port *port;
-
- list_for_each_entry(port, &pcie->ports, list) {
- u32 slot = port->slot;
-
-+ irqs[i++] = port->irq;
- if (port->enabled)
- pcie_link_status |= BIT(slot);
- }
-@@ -614,6 +637,15 @@ static int mt7621_pcie_init_virtual_brid
- (p2p_br_devnum[1] << PCIE_P2P_BR_DEVNUM1_SHIFT) |
- (p2p_br_devnum[2] << PCIE_P2P_BR_DEVNUM2_SHIFT));
-
-+ /* Assign IRQs */
-+ n = 0;
-+ for (i = 0; i < PCIE_P2P_MAX; i++)
-+ if (pcie_link_status & BIT(i))
-+ pcie->irq_map[n++] = irqs[i];
-+
-+ for (i = n; i < PCIE_P2P_MAX; i++)
-+ pcie->irq_map[i] = -1;
-+
- return 0;
- }
-
-@@ -638,7 +670,7 @@ static int mt7621_pcie_register_host(str
- host->busnr = pcie->busn.start;
- host->dev.parent = pcie->dev;
- host->ops = &mt7621_pci_ops;
-- host->map_irq = of_irq_parse_and_map_pci;
-+ host->map_irq = mt7621_map_irq;
- host->swizzle_irq = pci_common_swizzle;
- host->sysdata = pcie;
-
+++ /dev/null
-From 1f0400d0e2c410b04f246aefb2e9b5155eb4b0bf Mon Sep 17 00:00:00 2001
-From: Chuanhong Guo <gch981213@gmail.com>
-Date: Tue, 13 Oct 2020 10:05:47 +0800
-Subject: mips: ralink: enable zboot support
-
-Some of these ralink devices come with an ancient u-boot which can't
-extract LZMA properly when image gets too big.
-Enable zboot support to get a self-extracting kernel instead of relying
-on broken u-boot support.
-
-Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
-Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
----
- arch/mips/Kconfig | 1 +
- 1 file changed, 1 insertion(+)
-
---- a/arch/mips/Kconfig
-+++ b/arch/mips/Kconfig
-@@ -625,6 +625,7 @@ config RALINK
- select SYS_SUPPORTS_32BIT_KERNEL
- select SYS_SUPPORTS_LITTLE_ENDIAN
- select SYS_SUPPORTS_MIPS16
-+ select SYS_SUPPORTS_ZBOOT
- select SYS_HAS_EARLY_PRINTK
- select CLKDEV_LOOKUP
- select ARCH_HAS_RESET_CONTROLLER
+++ /dev/null
-From 5d7b644aad721ecca20bd8976b38fb243fdc84f9 Mon Sep 17 00:00:00 2001
-From: Chuanhong Guo <gch981213@gmail.com>
-Date: Sun, 15 Mar 2020 20:13:37 +0800
-Subject: [PATCH] gpio: mmio: introduce BGPIOF_NO_SET_ON_INPUT
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Some gpio controllers ignores pin value writing when that pin is
-configured as input mode. As a result, bgpio_dir_out should set
-pin to output before configuring pin values or gpio pin values
-can't be set up properly.
-Introduce two variants of bgpio_dir_out: bgpio_dir_out_val_first
-and bgpio_dir_out_dir_first, and assign direction_output according
-to a new flag: BGPIOF_NO_SET_ON_INPUT.
-
-Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
-Tested-by: René van Dorst <opensource@vdorst.com>
-Reviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
----
- drivers/gpio/gpio-mmio.c | 23 +++++++++++++++++++----
- include/linux/gpio/driver.h | 1 +
- 2 files changed, 20 insertions(+), 4 deletions(-)
-
---- a/drivers/gpio/gpio-mmio.c
-+++ b/drivers/gpio/gpio-mmio.c
-@@ -381,12 +381,10 @@ static int bgpio_get_dir(struct gpio_chi
- return 1;
- }
-
--static int bgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
-+static void bgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
- {
- unsigned long flags;
-
-- gc->set(gc, gpio, val);
--
- spin_lock_irqsave(&gc->bgpio_lock, flags);
-
- gc->bgpio_dir |= bgpio_line2mask(gc, gpio);
-@@ -397,7 +395,21 @@ static int bgpio_dir_out(struct gpio_chi
- gc->write_reg(gc->reg_dir_out, gc->bgpio_dir);
-
- spin_unlock_irqrestore(&gc->bgpio_lock, flags);
-+}
-
-+static int bgpio_dir_out_dir_first(struct gpio_chip *gc, unsigned int gpio,
-+ int val)
-+{
-+ bgpio_dir_out(gc, gpio, val);
-+ gc->set(gc, gpio, val);
-+ return 0;
-+}
-+
-+static int bgpio_dir_out_val_first(struct gpio_chip *gc, unsigned int gpio,
-+ int val)
-+{
-+ gc->set(gc, gpio, val);
-+ bgpio_dir_out(gc, gpio, val);
- return 0;
- }
-
-@@ -530,7 +542,10 @@ static int bgpio_setup_direction(struct
- if (dirout || dirin) {
- gc->reg_dir_out = dirout;
- gc->reg_dir_in = dirin;
-- gc->direction_output = bgpio_dir_out;
-+ if (flags & BGPIOF_NO_SET_ON_INPUT)
-+ gc->direction_output = bgpio_dir_out_dir_first;
-+ else
-+ gc->direction_output = bgpio_dir_out_val_first;
- gc->direction_input = bgpio_dir_in;
- gc->get_direction = bgpio_get_dir;
- } else {
---- a/include/linux/gpio/driver.h
-+++ b/include/linux/gpio/driver.h
-@@ -567,6 +567,7 @@ int bgpio_init(struct gpio_chip *gc, str
- #define BGPIOF_BIG_ENDIAN_BYTE_ORDER BIT(3)
- #define BGPIOF_READ_OUTPUT_REG_SET BIT(4) /* reg_set stores output value */
- #define BGPIOF_NO_OUTPUT BIT(5) /* only input */
-+#define BGPIOF_NO_SET_ON_INPUT BIT(6)
-
- int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
- irq_hw_number_t hwirq);
+++ /dev/null
-From ad65f02fd73e9a700f1693a4513ae923ca07beb0 Mon Sep 17 00:00:00 2001
-From: Chuanhong Guo <gch981213@gmail.com>
-Date: Sun, 15 Mar 2020 20:13:38 +0800
-Subject: [PATCH] gpio: mt7621: add BGPIOF_NO_SET_ON_INPUT flag
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-DSET/DCLR registers only works on output pins. Add corresponding
-BGPIOF_NO_SET_ON_INPUT flag to bgpio_init call to fix direction_out
-behavior.
-
-Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
-Tested-by: René van Dorst <opensource@vdorst.com>
-Reviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
----
- drivers/gpio/gpio-mt7621.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
---- a/drivers/gpio/gpio-mt7621.c
-+++ b/drivers/gpio/gpio-mt7621.c
-@@ -227,8 +227,8 @@ mediatek_gpio_bank_probe(struct device *
- ctrl = mtk->base + GPIO_REG_DCLR + (rg->bank * GPIO_BANK_STRIDE);
- diro = mtk->base + GPIO_REG_CTRL + (rg->bank * GPIO_BANK_STRIDE);
-
-- ret = bgpio_init(&rg->chip, dev, 4,
-- dat, set, ctrl, diro, NULL, 0);
-+ ret = bgpio_init(&rg->chip, dev, 4, dat, set, ctrl, diro, NULL,
-+ BGPIOF_NO_SET_ON_INPUT);
- if (ret) {
- dev_err(dev, "bgpio_init() failed\n");
- return ret;
+++ /dev/null
-From f798b7588bd7397bbab958281ca6c88d08714941 Mon Sep 17 00:00:00 2001
-From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Date: Thu, 12 Mar 2020 12:29:15 +0100
-Subject: [PATCH] MIPS: ralink: mt7621: introduce 'soc_device' initialization
-
-mt7621 SoC has its own 'ralink_soc_info' structure with some
-information about the soc itself. Pcie controller and pcie phy
-drivers for this soc which are still in staging git tree make uses
-of 'soc_device_attribute' looking for revision 'E2' in order to
-know if reset lines are or not inverted. This way of doing things
-seems to be necessary in order to make things clean and properly.
-Hence, introduce this 'soc_device' to be able to properly use those
-attributes in drivers. Also set 'data' pointer points to the struct
-'ralink_soc_info' to be able to export also current soc information
-using this mechanism.
-
-Cc: Paul Burton <paul.burton@mips.com>
-Cc: ralf@linux-mips.org
-Cc: jhogan@kernel.org
-Cc: john@phrozen.org
-Cc: NeilBrown <neil@brown.name>
-Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-Cc: linux-mips@vger.kernel.org
-
-Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
-Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
----
- arch/mips/ralink/mt7621.c | 32 +++++++++++++++++++++++++++++++-
- 1 file changed, 31 insertions(+), 1 deletion(-)
-
---- a/arch/mips/ralink/mt7621.c
-+++ b/arch/mips/ralink/mt7621.c
-@@ -7,6 +7,8 @@
-
- #include <linux/kernel.h>
- #include <linux/init.h>
-+#include <linux/slab.h>
-+#include <linux/sys_soc.h>
- #include <linux/jiffies.h>
- #include <linux/clk.h>
- #include <linux/clkdev.h>
-@@ -294,6 +296,33 @@ static int udelay_recal(void)
- }
- device_initcall(udelay_recal);
-
-+static void soc_dev_init(struct ralink_soc_info *soc_info, u32 rev)
-+{
-+ struct soc_device *soc_dev;
-+ struct soc_device_attribute *soc_dev_attr;
-+
-+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
-+ if (!soc_dev_attr)
-+ return;
-+
-+ soc_dev_attr->soc_id = "mt7621";
-+ soc_dev_attr->family = "Ralink";
-+
-+ if (((rev >> CHIP_REV_VER_SHIFT) & CHIP_REV_VER_MASK) == 1 &&
-+ (rev & CHIP_REV_ECO_MASK) == 1)
-+ soc_dev_attr->revision = "E2";
-+ else
-+ soc_dev_attr->revision = "E1";
-+
-+ soc_dev_attr->data = soc_info;
-+
-+ soc_dev = soc_device_register(soc_dev_attr);
-+ if (IS_ERR(soc_dev)) {
-+ kfree(soc_dev_attr);
-+ return;
-+ }
-+}
-+
- void prom_soc_init(struct ralink_soc_info *soc_info)
- {
- void __iomem *sysc = (void __iomem *) KSEG1ADDR(MT7621_SYSC_BASE);
-@@ -345,11 +374,12 @@ void prom_soc_init(struct ralink_soc_inf
- soc_info->mem_detect = mt7621_memory_detect;
- rt2880_pinmux_data = mt7621_pinmux_data;
-
--
- if (!register_cps_smp_ops())
- return;
- if (!register_cmp_smp_ops())
- return;
- if (!register_vsmp_smp_ops())
- return;
-+
-+ soc_dev_init(soc_info, rev);
- }
projects / openwrt / staging / rmilecki.git / commitdiff