+++ /dev/null
-# CONFIG_40x is not set
-CONFIG_44x=y
-CONFIG_460EX=y
-CONFIG_4xx=y
-CONFIG_4xx_SOC=y
-# CONFIG_ADVANCED_OPTIONS is not set
-CONFIG_APM821xx=y
-CONFIG_APOLLO3G=y
-# CONFIG_ARCHES is not set
-CONFIG_ARCH_DMA_ADDR_T_64BIT=y
-CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
-CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
-CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK=y
-CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
-CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
-CONFIG_ARCH_HAS_ILOG2_U32=y
-CONFIG_ARCH_HAS_SG_CHAIN=y
-CONFIG_ARCH_HAS_WALK_MEMORY=y
-CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
-CONFIG_ARCH_HIBERNATION_POSSIBLE=y
-CONFIG_ARCH_MAY_HAVE_PC_FDC=y
-CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
-CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
-CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
-# CONFIG_ARCH_RANDOM is not set
-CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
-CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
-CONFIG_ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT=y
-CONFIG_ARCH_SUPPORTS_UPROBES=y
-CONFIG_ARCH_SUSPEND_POSSIBLE=y
-CONFIG_ARCH_USE_BUILTIN_BSWAP=y
-CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
-CONFIG_AUDIT_ARCH=y
-# CONFIG_BAMBOO is not set
-CONFIG_BCH=y
-CONFIG_BLK_MQ_PCI=y
-# CONFIG_BLUESTONE is not set
-CONFIG_BOOKE=y
-CONFIG_BOOKE_WDT=y
-# CONFIG_BOUNCE is not set
-CONFIG_BUCKMINSTER=y
-# CONFIG_CANYONLANDS is not set
-CONFIG_CLONE_BACKWARDS=y
-CONFIG_CMDLINE="rootfstype=squashfs noinitrd"
-CONFIG_CMDLINE_BOOL=y
-CONFIG_CONSISTENT_SIZE=0x00200000
-CONFIG_CPU_BIG_ENDIAN=y
-CONFIG_CRC16=y
-CONFIG_CRYPTO_DEFLATE=y
-CONFIG_CRYPTO_DEV_PPC4XX=y
-CONFIG_CRYPTO_HASH=y
-CONFIG_CRYPTO_HASH2=y
-CONFIG_CRYPTO_HW=y
-CONFIG_CRYPTO_LZO=y
-CONFIG_CRYPTO_MD5_PPC=y
-CONFIG_CRYPTO_RNG2=y
-CONFIG_CRYPTO_SHA1_PPC=y
-CONFIG_CRYPTO_WORKQUEUE=y
-CONFIG_DECOMPRESS_GZIP=y
-# CONFIG_DEFAULT_UIMAGE is not set
-CONFIG_DTC=y
-# CONFIG_E200 is not set
-CONFIG_EARLY_PRINTK=y
-# CONFIG_EBONY is not set
-CONFIG_EDAC_ATOMIC_SCRUB=y
-CONFIG_EDAC_SUPPORT=y
-# CONFIG_EIGER is not set
-# CONFIG_EPAPR_BOOT is not set
-CONFIG_EXTRA_TARGETS="uImage"
-CONFIG_FIXED_PHY=y
-CONFIG_FREEZER=y
-# CONFIG_FSL_LBC is not set
-# CONFIG_FSL_ULI1575 is not set
-CONFIG_GENERIC_ATOMIC64=y
-CONFIG_GENERIC_BUG=y
-CONFIG_GENERIC_CLOCKEVENTS=y
-CONFIG_GENERIC_CMOS_UPDATE=y
-CONFIG_GENERIC_CPU_AUTOPROBE=y
-# CONFIG_GENERIC_CSUM is not set
-CONFIG_GENERIC_IO=y
-CONFIG_GENERIC_IRQ_SHOW=y
-CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
-CONFIG_GENERIC_ISA_DMA=y
-CONFIG_GENERIC_MSI_IRQ=y
-CONFIG_GENERIC_NVRAM=y
-CONFIG_GENERIC_PCI_IOMAP=y
-CONFIG_GENERIC_SMP_IDLE_THREAD=y
-CONFIG_GENERIC_STRNCPY_FROM_USER=y
-CONFIG_GENERIC_STRNLEN_USER=y
-# CONFIG_GENERIC_TBSYNC is not set
-CONFIG_GENERIC_TIME_VSYSCALL_OLD=y
-# CONFIG_GEN_RTC is not set
-# CONFIG_GE_FPGA is not set
-# CONFIG_GLACIER is not set
-CONFIG_GPIOLIB=y
-CONFIG_GPIO_GENERIC=y
-CONFIG_GPIO_GENERIC_PLATFORM=y
-CONFIG_GPIO_SYSFS=y
-CONFIG_HAS_DMA=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT_MAP=y
-# CONFIG_HAS_RAPIDIO is not set
-# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
-CONFIG_HAVE_ARCH_AUDITSYSCALL=y
-# CONFIG_HAVE_ARCH_BITREVERSE is not set
-CONFIG_HAVE_ARCH_JUMP_LABEL=y
-CONFIG_HAVE_ARCH_KGDB=y
-CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
-CONFIG_HAVE_ARCH_TRACEHOOK=y
-# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
-CONFIG_HAVE_CBPF_JIT=y
-CONFIG_HAVE_DEBUG_KMEMLEAK=y
-CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
-CONFIG_HAVE_DMA_API_DEBUG=y
-CONFIG_HAVE_DYNAMIC_FTRACE=y
-CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
-CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
-CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
-CONFIG_HAVE_FUNCTION_TRACER=y
-# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
-CONFIG_HAVE_GENERIC_RCU_GUP=y
-CONFIG_HAVE_IDE=y
-CONFIG_HAVE_IOREMAP_PROT=y
-CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
-CONFIG_HAVE_MEMBLOCK=y
-CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
-CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
-CONFIG_HAVE_NET_DSA=y
-CONFIG_HAVE_OPROFILE=y
-CONFIG_HAVE_PERF_EVENTS=y
-CONFIG_HAVE_PERF_REGS=y
-CONFIG_HAVE_PERF_USER_STACK_DUMP=y
-CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
-# CONFIG_HAVE_SETUP_PER_CPU_AREA is not set
-CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
-CONFIG_HAVE_VIRT_CPU_ACCOUNTING=y
-CONFIG_HW_RANDOM=y
-CONFIG_HW_RANDOM_PPC4XX=y
-CONFIG_HZ=1000
-# CONFIG_HZ_100 is not set
-CONFIG_HZ_1000=y
-CONFIG_HZ_PERIODIC=y
-CONFIG_I2C=y
-CONFIG_I2C_BOARDINFO=y
-CONFIG_I2C_CHARDEV=y
-CONFIG_I2C_IBM_IIC=y
-CONFIG_IBM_EMAC=y
-CONFIG_IBM_EMAC_EMAC4=y
-CONFIG_IBM_EMAC_POLL_WEIGHT=32
-CONFIG_IBM_EMAC_RGMII=y
-CONFIG_IBM_EMAC_RXB=128
-CONFIG_IBM_EMAC_RX_COPY_THRESHOLD=256
-CONFIG_IBM_EMAC_RX_SKB_HEADROOM=0
-CONFIG_IBM_EMAC_TAH=y
-CONFIG_IBM_EMAC_TXB=128
-# CONFIG_ICON is not set
-CONFIG_IKAREM=y
-CONFIG_INITRAMFS_SOURCE=""
-# CONFIG_IOMMU_HELPER is not set
-# CONFIG_IPIC is not set
-CONFIG_IRQCHIP=y
-CONFIG_IRQ_DOMAIN=y
-CONFIG_IRQ_FORCED_THREADING=y
-CONFIG_IRQ_WORK=y
-CONFIG_ISA_DMA_API=y
-# CONFIG_JFFS2_FS is not set
-# CONFIG_KATMAI is not set
-CONFIG_KERNEL_GZIP=y
-CONFIG_KERNEL_START=0xc0000000
-CONFIG_LEDS_TRIGGER_MTD=y
-CONFIG_LIBFDT=y
-CONFIG_LOWMEM_SIZE=0x30000000
-CONFIG_LZO_COMPRESS=y
-CONFIG_LZO_DECOMPRESS=y
-# CONFIG_MATH_EMULATION is not set
-CONFIG_MDIO_BOARDINFO=y
-# CONFIG_MDIO_HISI_FEMAC is not set
-# CONFIG_MFD_ACT8945A is not set
-# CONFIG_MFD_MAX77620 is not set
-# CONFIG_MMIO_NVRAM is not set
-CONFIG_MODULES_USE_ELF_RELA=y
-# CONFIG_MPIC is not set
-# CONFIG_MPIC_U3_HT_IRQS is not set
-# CONFIG_MPIC_WEIRD is not set
-CONFIG_MTD_CFI_ADV_OPTIONS=y
-# CONFIG_MTD_CFI_GEOMETRY is not set
-CONFIG_MTD_NAND=y
-CONFIG_MTD_NAND_BCH=y
-CONFIG_MTD_NAND_ECC=y
-CONFIG_MTD_NAND_ECC_BCH=y
-CONFIG_MTD_NAND_ECC_SMC=y
-CONFIG_MTD_NAND_NDFC=y
-# CONFIG_MTD_SPLIT is not set
-# CONFIG_MTD_SPLIT_SQUASHFS_ROOT is not set
-CONFIG_NEED_DMA_MAP_STATE=y
-# CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK is not set
-CONFIG_NEED_PER_CPU_KM=y
-CONFIG_NEED_SG_DMA_LENGTH=y
-# CONFIG_NONSTATIC_KERNEL is not set
-CONFIG_NOT_COHERENT_CACHE=y
-CONFIG_NO_BOOTMEM=y
-CONFIG_NR_IRQS=512
-CONFIG_OF=y
-CONFIG_OF_ADDRESS=y
-CONFIG_OF_ADDRESS_PCI=y
-CONFIG_OF_EARLY_FLATTREE=y
-CONFIG_OF_FLATTREE=y
-CONFIG_OF_GPIO=y
-CONFIG_OF_IRQ=y
-CONFIG_OF_MDIO=y
-CONFIG_OF_NET=y
-CONFIG_OF_PCI=y
-CONFIG_OF_PCI_IRQ=y
-CONFIG_OF_RESERVED_MEM=y
-CONFIG_OLD_SIGACTION=y
-CONFIG_OLD_SIGSUSPEND=y
-CONFIG_PAGE_OFFSET=0xc0000000
-CONFIG_PCI=y
-CONFIG_PCIEAER=y
-CONFIG_PCIEPORTBUS=y
-CONFIG_PCIE_PME=y
-CONFIG_PCI_BUS_ADDR_T_64BIT=y
-CONFIG_PCI_DISABLE_COMMON_QUIRKS=y
-CONFIG_PCI_DOMAINS=y
-CONFIG_PCI_MSI=y
-# CONFIG_PCI_MSI_IRQ_DOMAIN is not set
-CONFIG_PGTABLE_LEVELS=2
-CONFIG_PHYLIB=y
-CONFIG_PHYSICAL_START=0x00000000
-CONFIG_PHYS_64BIT=y
-CONFIG_PHYS_ADDR_T_64BIT=y
-CONFIG_PM=y
-CONFIG_PM_AUTOSLEEP=y
-# CONFIG_PM_DEBUG is not set
-CONFIG_PM_SLEEP=y
-CONFIG_PM_WAKELOCKS=y
-CONFIG_PM_WAKELOCKS_GC=y
-CONFIG_PM_WAKELOCKS_LIMIT=100
-CONFIG_PPC=y
-CONFIG_PPC32=y
-CONFIG_PPC44x_SIMPLE=y
-CONFIG_PPC4xx_CPM=y
-CONFIG_PPC4xx_GPIO=y
-# CONFIG_PPC4xx_HSTA_MSI is not set
-CONFIG_PPC4xx_MSI=y
-CONFIG_PPC4xx_OCM=y
-CONFIG_PPC4xx_PCI_EXPRESS=y
-# CONFIG_PPC64 is not set
-# CONFIG_PPC_47x is not set
-# CONFIG_PPC_85xx is not set
-# CONFIG_PPC_8xx is not set
-# CONFIG_PPC_970_NAP is not set
-CONFIG_PPC_ADV_DEBUG_DACS=2
-CONFIG_PPC_ADV_DEBUG_DAC_RANGE=y
-CONFIG_PPC_ADV_DEBUG_DVCS=2
-CONFIG_PPC_ADV_DEBUG_IACS=4
-CONFIG_PPC_ADV_DEBUG_REGS=y
-# CONFIG_PPC_BOOK3S_32 is not set
-# CONFIG_PPC_CELL is not set
-# CONFIG_PPC_CELL_NATIVE is not set
-# CONFIG_PPC_COPRO_BASE is not set
-CONFIG_PPC_DCR=y
-# CONFIG_PPC_DCR_MMIO is not set
-CONFIG_PPC_DCR_NATIVE=y
-# CONFIG_PPC_DOORBELL is not set
-# CONFIG_PPC_EARLY_DEBUG is not set
-# CONFIG_PPC_EPAPR_HV_PIC is not set
-CONFIG_PPC_FPU=y
-# CONFIG_PPC_I8259 is not set
-# CONFIG_PPC_ICP_HV is not set
-# CONFIG_PPC_ICP_NATIVE is not set
-# CONFIG_PPC_ICS_RTAS is not set
-CONFIG_PPC_INDIRECT_PCI=y
-CONFIG_PPC_LIB_RHEAP=y
-CONFIG_PPC_MMU_NOHASH=y
-# CONFIG_PPC_MM_SLICES is not set
-# CONFIG_PPC_MPC106 is not set
-CONFIG_PPC_MSI_BITMAP=y
-# CONFIG_PPC_P7_NAP is not set
-CONFIG_PPC_PCI_CHOICE=y
-# CONFIG_PPC_RTAS is not set
-CONFIG_PPC_UDBG_16550=y
-CONFIG_PPC_WERROR=y
-# CONFIG_PPC_XICS is not set
-# CONFIG_PQ2ADS is not set
-CONFIG_PTE_64BIT=y
-# CONFIG_QORIQ_THERMAL is not set
-# CONFIG_RAINIER is not set
-CONFIG_RAS=y
-# CONFIG_RCU_STALL_COMMON is not set
-CONFIG_RD_GZIP=y
-# CONFIG_RELOCATABLE is not set
-CONFIG_RWSEM_XCHGADD_ALGORITHM=y
-# CONFIG_SAM440EP is not set
-# CONFIG_SCHED_INFO is not set
-# CONFIG_SCSI_DMA is not set
-# CONFIG_SENSORS_TC654 is not set
-# CONFIG_SEQUOIA is not set
-CONFIG_SERIAL_8250_EXTENDED=y
-CONFIG_SERIAL_8250_FSL=y
-CONFIG_SERIAL_8250_SHARE_IRQ=y
-CONFIG_SERIAL_OF_PLATFORM=y
-CONFIG_SIMPLE_GPIO=y
-CONFIG_SPARSE_IRQ=y
-CONFIG_SRCU=y
-CONFIG_SUSPEND=y
-CONFIG_SUSPEND_FREEZER=y
-# CONFIG_SWIOTLB is not set
-CONFIG_SWPHY=y
-CONFIG_SYSCTL_EXCEPTION_TRACE=y
-# CONFIG_TAISHAN is not set
-CONFIG_TASK_SIZE=0xc0000000
-CONFIG_TICK_CPU_ACCOUNTING=y
-CONFIG_USB_SUPPORT=y
-CONFIG_VDSO32=y
-# CONFIG_VIRT_CPU_ACCOUNTING_NATIVE is not set
-# CONFIG_WARP is not set
-CONFIG_WATCHDOG_CORE=y
-CONFIG_WNDR4700=y
-# CONFIG_XILINX_SYSACE is not set
-# CONFIG_XILINX_VIRTEX440_GENERIC_BOARD is not set
-CONFIG_XZ_DEC_BCJ=y
-CONFIG_XZ_DEC_POWERPC=y
-# CONFIG_YOSEMITE is not set
-CONFIG_ZLIB_DEFLATE=y
-CONFIG_ZLIB_INFLATE=y
+++ /dev/null
---- a/arch/powerpc/platforms/44x/Kconfig
-+++ b/arch/powerpc/platforms/44x/Kconfig
-@@ -40,6 +40,19 @@ config EBONY
- help
- This option enables support for the IBM PPC440GP evaluation board.
-
-+config IKAREM
-+ bool "Ikarem"
-+ depends on 44x
-+ default n
-+ select PPC44x_SIMPLE
-+ select APM821xx
-+ select PCI_MSI
-+ select PPC4xx_MSI
-+ select PPC4xx_PCI_EXPRESS
-+ select IBM_EMAC_RGMII
-+ help
-+ This option enables support for the Cisco Meraki MR24 (Ikarem) Access Point.
-+
- config SAM440EP
- bool "Sam440ep"
- depends on 44x
---- a/arch/powerpc/platforms/44x/ppc44x_simple.c
-+++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
-@@ -62,6 +62,7 @@ static char *board[] __initdata = {
- "amcc,sequoia",
- "amcc,taishan",
- "amcc,yosemite",
-+ "meraki,ikarem",
- "mosaixtech,icon"
- };
-
+++ /dev/null
---- a/arch/powerpc/platforms/44x/Kconfig
-+++ b/arch/powerpc/platforms/44x/Kconfig
-@@ -143,6 +143,17 @@ config CANYONLANDS
- help
- This option enables support for the AMCC PPC460EX evaluation board.
-
-+config APOLLO3G
-+ bool "Apollo3G"
-+ depends on 44x
-+ default n
-+ select PPC44x_SIMPLE
-+ select APM821xx
-+ select IBM_EMAC_RGMII
-+ select 460EX
-+ help
-+ This option enables support for the AMCC Apollo 3G board.
-+
- config GLACIER
- bool "Glacier"
- depends on 44x
---- a/arch/powerpc/platforms/44x/ppc44x_simple.c
-+++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
-@@ -50,6 +50,7 @@ machine_device_initcall(ppc44x_simple, p
- * board.c file for it rather than adding it to this list.
- */
- static char *board[] __initdata = {
-+ "amcc,apollo3g",
- "amcc,arches",
- "amcc,bamboo",
- "apm,bluestone",
+++ /dev/null
---- a/arch/powerpc/platforms/44x/Makefile
-+++ b/arch/powerpc/platforms/44x/Makefile
-@@ -3,6 +3,7 @@ ifneq ($(CONFIG_PPC4xx_CPM),y)
- obj-$(CONFIG_44x) += idle.o
- endif
- obj-$(CONFIG_PPC44x_SIMPLE) += ppc44x_simple.o
-+obj-$(CONFIG_WNDR4700) += wndr4700.o
- obj-$(CONFIG_EBONY) += ebony.o
- obj-$(CONFIG_SAM440EP) += sam440ep.o
- obj-$(CONFIG_WARP) += warp.o
---- a/arch/powerpc/platforms/44x/Kconfig
-+++ b/arch/powerpc/platforms/44x/Kconfig
-@@ -260,6 +260,19 @@ config ICON
- help
- This option enables support for the AMCC PPC440SPe evaluation board.
-
-+config WNDR4700
-+ bool "WNDR4700"
-+ depends on 44x
-+ default n
-+ select APM821xx
-+ select PCI_MSI
-+ select PPC4xx_MSI
-+ select PPC4xx_PCI_EXPRESS
-+ select IBM_EMAC_RGMII
-+ select 460EX
-+ help
-+ This option enables support for the Netgear WNDR4700/WNDR4720 board.
-+
- config XILINX_VIRTEX440_GENERIC_BOARD
- bool "Generic Xilinx Virtex 5 FXT board support"
- depends on 44x
+++ /dev/null
---- a/arch/powerpc/platforms/44x/Kconfig
-+++ b/arch/powerpc/platforms/44x/Kconfig
-@@ -30,6 +30,19 @@ config BLUESTONE
- help
- This option enables support for the APM APM821xx Evaluation board.
-
-+config BUCKMINSTER
-+ bool "Buckminster"
-+ depends on 44x
-+ default n
-+ select APM821xx
-+ select PCI_MSI
-+ select PPC4xx_MSI
-+ select PPC4xx_PCI_EXPRESS
-+ select IBM_EMAC_RGMII
-+ select 460EX
-+ help
-+ This option enables support for the Cisco Meraki MX60/MX60W (Buckminster) Security Appliance
-+
- config EBONY
- bool "Ebony"
- depends on 44x
---- a/arch/powerpc/platforms/44x/ppc44x_simple.c
-+++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
-@@ -63,6 +63,7 @@ static char *board[] __initdata = {
- "amcc,sequoia",
- "amcc,taishan",
- "amcc,yosemite",
-+ "meraki,buckminster",
- "meraki,ikarem",
- "mosaixtech,icon"
- };
+++ /dev/null
---- a/arch/powerpc/sysdev/ppc4xx_pci.c
-+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
-@@ -1066,15 +1066,24 @@ static int __init apm821xx_pciex_init_po
- u32 val;
-
- /*
-- * Do a software reset on PCIe ports.
-- * This code is to fix the issue that pci drivers doesn't re-assign
-- * bus number for PCIE devices after Uboot
-- * scanned and configured all the buses (eg. PCIE NIC IntelPro/1000
-- * PT quad port, SAS LSI 1064E)
-+ * Only reset the PHY when no link is currently established.
-+ * This is for the Atheros PCIe board which has problems to establish
-+ * the link (again) after this PHY reset. All other currently tested
-+ * PCIe boards don't show this problem.
- */
--
-- mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x0);
-- mdelay(10);
-+ val = mfdcri(SDR0, port->sdr_base + PESDRn_LOOP);
-+ if (!(val & 0x00001000)) {
-+ /*
-+ * Do a software reset on PCIe ports.
-+ * This code is to fix the issue that pci drivers doesn't re-assign
-+ * bus number for PCIE devices after Uboot
-+ * scanned and configured all the buses (eg. PCIE NIC IntelPro/1000
-+ * PT quad port, SAS LSI 1064E)
-+ */
-+
-+ mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x0);
-+ mdelay(10);
-+ }
-
- if (port->endpoint)
- val = PTYPE_LEGACY_ENDPOINT << 20;
-@@ -1091,9 +1100,12 @@ static int __init apm821xx_pciex_init_po
- mtdcri(SDR0, PESDR0_460EX_L0DRV, 0x00000130);
- mtdcri(SDR0, PESDR0_460EX_L0CLK, 0x00000006);
-
-- mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x10000000);
-- mdelay(50);
-- mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x30000000);
-+ val = mfdcri(SDR0, port->sdr_base + PESDRn_LOOP);
-+ if (!(val & 0x00001000)) {
-+ mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x10000000);
-+ mdelay(50);
-+ mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x30000000);
-+ }
-
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
- mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) |
+++ /dev/null
---- a/arch/powerpc/sysdev/ppc4xx_pci.c
-+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
-@@ -1913,9 +1913,9 @@ static void __init ppc4xx_configure_pcie
- * if it works
- */
- out_le32(mbase + PECFG_PIM0LAL, 0x00000000);
-- out_le32(mbase + PECFG_PIM0LAH, 0x00000000);
-+ out_le32(mbase + PECFG_PIM0LAH, 0x00000008);
- out_le32(mbase + PECFG_PIM1LAL, 0x00000000);
-- out_le32(mbase + PECFG_PIM1LAH, 0x00000000);
-+ out_le32(mbase + PECFG_PIM1LAH, 0x0000000c);
- out_le32(mbase + PECFG_PIM01SAH, 0xffff0000);
- out_le32(mbase + PECFG_PIM01SAL, 0x00000000);
-
+++ /dev/null
---- a/drivers/net/ethernet/ibm/emac/core.c
-+++ b/drivers/net/ethernet/ibm/emac/core.c
-@@ -129,6 +129,7 @@ static inline void emac_report_timeout_e
- {
- if (emac_has_feature(dev, EMAC_FTR_440GX_PHY_CLK_FIX |
- EMAC_FTR_460EX_PHY_CLK_FIX |
-+ EMAC_FTR_APM821XX_PHY_CLK_FIX |
- EMAC_FTR_440EP_PHY_CLK_FIX))
- DBG(dev, "%s" NL, error);
- else if (net_ratelimit())
-@@ -146,6 +147,10 @@ static inline void emac_rx_clk_tx(struct
- if (emac_has_feature(dev, EMAC_FTR_440EP_PHY_CLK_FIX))
- dcri_clrset(SDR0, SDR0_MFR,
- 0, SDR0_MFR_ECS >> dev->cell_index);
-+
-+ if (emac_has_feature(dev, EMAC_FTR_APM821XX_PHY_CLK_FIX))
-+ dcri_clrset(SDR0, SDR0_ETH_CFG,
-+ 0, 0x00000100 >> dev->cell_index);
- #endif
- }
-
-@@ -155,6 +160,10 @@ static inline void emac_rx_clk_default(s
- if (emac_has_feature(dev, EMAC_FTR_440EP_PHY_CLK_FIX))
- dcri_clrset(SDR0, SDR0_MFR,
- SDR0_MFR_ECS >> dev->cell_index, 0);
-+
-+ if (emac_has_feature(dev, EMAC_FTR_APM821XX_PHY_CLK_FIX))
-+ dcri_clrset(SDR0, SDR0_ETH_CFG,
-+ 0x00000100 >> dev->cell_index, 0);
- #endif
- }
-
-@@ -2617,6 +2626,7 @@ static int emac_init_config(struct emac_
- if (of_device_is_compatible(np, "ibm,emac-apm821xx")) {
- dev->features |= (EMAC_APM821XX_REQ_JUMBO_FRAME_SIZE |
- EMAC_FTR_APM821XX_NO_HALF_DUPLEX |
-+ EMAC_FTR_APM821XX_PHY_CLK_FIX |
- EMAC_FTR_460EX_PHY_CLK_FIX);
- }
- } else if (of_device_is_compatible(np, "ibm,emac4")) {
---- a/drivers/net/ethernet/ibm/emac/core.h
-+++ b/drivers/net/ethernet/ibm/emac/core.h
-@@ -333,6 +333,8 @@ struct emac_instance {
- */
- #define EMAC_FTR_APM821XX_NO_HALF_DUPLEX 0x00001000
-
-+#define EMAC_FTR_APM821XX_PHY_CLK_FIX 0x000002000
-+
- /* Right now, we don't quite handle the always/possible masks on the
- * most optimal way as we don't have a way to say something like
- * always EMAC4. Patches welcome.
+++ /dev/null
-From b1c54da602ae9215cfbde1c3ed3b6296b76f07fc Mon Sep 17 00:00:00 2001
-Message-Id: <b1c54da602ae9215cfbde1c3ed3b6296b76f07fc.1486337989.git.chunkeey@googlemail.com>
-In-Reply-To: <246bd6614529d28dc48b11981ab5dae7a7364fc2.1486337989.git.chunkeey@googlemail.com>
-References: <246bd6614529d28dc48b11981ab5dae7a7364fc2.1486337989.git.chunkeey@googlemail.com>
-From: Christian Lamparter <chunkeey@gmail.com>
-Date: Mon, 13 Jun 2016 15:42:21 +0200
-Subject: [RFC 2/2] net: emac: add support for device-tree based PHY discovery
- and setup
-To: netdev@vger.kernel.org,
- devicetree@vger.kernel.org
-Cc: David S. Miller <davem@davemloft.net>,
- Ivan Mikhaylov <ivan@de.ibm.com>,
- Mark Rutland <mark.rutland@arm.com>,
- Rob Herring <robh+dt@kernel.org>
-
-This patch adds glue-code that allows the EMAC driver to interface
-with the existing dt-supported PHYs in drivers/net/phy.
-
-Because currently, the emac driver maintains a small library of
-supported phys for in a private phy.c file located in the drivers
-directory.
-
-The support is limited to mostly single ethernet transceiver like the:
-CIS8201, BCM5248, ET1011C, Marvell 88E1111 and 88E1112, AR8035.
-However, routers like the Netgear WNDR4700 and Cisco Meraki MX60(W)
-have a 5-port switch (QCA8327N) attached to the MDIO of the EMAC.
-The switch chip has already a proper phy-driver (ar8216) that uses
-the generic phy library.
-
-Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
----
---- a/drivers/net/ethernet/ibm/emac/core.c
-+++ b/drivers/net/ethernet/ibm/emac/core.c
-@@ -42,6 +42,7 @@
- #include <linux/of_address.h>
- #include <linux/of_irq.h>
- #include <linux/of_net.h>
-+#include <linux/of_mdio.h>
- #include <linux/slab.h>
-
- #include <asm/processor.h>
-@@ -2422,6 +2423,229 @@ static int emac_read_uint_prop(struct de
- return 0;
- }
-
-+static void emac_adjust_link(struct net_device *ndev)
-+{
-+ struct emac_instance *dev = netdev_priv(ndev);
-+ struct phy_device *phy = dev->phy_dev;
-+
-+ dev->phy.autoneg = phy->autoneg;
-+ dev->phy.speed = phy->speed;
-+ dev->phy.duplex = phy->duplex;
-+ dev->phy.pause = phy->pause;
-+ dev->phy.asym_pause = phy->asym_pause;
-+ dev->phy.advertising = phy->advertising;
-+}
-+
-+static int emac_mii_bus_read(struct mii_bus *bus, int addr, int regnum)
-+{
-+ return emac_mdio_read(bus->priv, addr, regnum);
-+}
-+
-+static int emac_mii_bus_write(struct mii_bus *bus, int addr, int regnum, u16 val)
-+{
-+ emac_mdio_write(bus->priv, addr, regnum, val);
-+ return 0;
-+}
-+
-+static int emac_mii_bus_reset(struct mii_bus *bus)
-+{
-+ struct emac_instance *dev = netdev_priv(bus->priv);
-+ int err;
-+
-+ err = emac_reset(dev);
-+ if (err)
-+ return err;
-+ /* Meraki MX60(W)'s uboot will disable the switch and
-+ * a bus reset won't do anything. */
-+ emac_mii_reset_phy(&dev->phy);
-+ return 0;
-+}
-+
-+static int emac_mdio_setup_aneg(struct mii_phy *phy, u32 advertise)
-+{
-+ struct net_device *ndev = phy->dev;
-+ struct emac_instance *dev = netdev_priv(ndev);
-+
-+ dev->phy.autoneg = AUTONEG_ENABLE;
-+ dev->phy.speed = SPEED_1000;
-+ dev->phy.duplex = DUPLEX_FULL;
-+ dev->phy.advertising = advertise;
-+ phy->autoneg = AUTONEG_ENABLE;
-+ phy->speed = dev->phy.speed;
-+ phy->duplex = dev->phy.duplex;
-+ phy->advertising = advertise;
-+ return phy_start_aneg(dev->phy_dev);
-+}
-+
-+static int emac_mdio_setup_forced(struct mii_phy *phy, int speed, int fd)
-+{
-+ struct net_device *ndev = phy->dev;
-+ struct emac_instance *dev = netdev_priv(ndev);
-+
-+ dev->phy.autoneg = AUTONEG_DISABLE;
-+ dev->phy.speed = speed;
-+ dev->phy.duplex = fd;
-+ phy->autoneg = AUTONEG_DISABLE;
-+ phy->speed = speed;
-+ phy->duplex = fd;
-+ return phy_start_aneg(dev->phy_dev);
-+}
-+
-+static int emac_mdio_poll_link(struct mii_phy *phy)
-+{
-+ struct net_device *ndev = phy->dev;
-+ struct emac_instance *dev = netdev_priv(ndev);
-+ int res;
-+
-+ res = phy_read_status(dev->phy_dev);
-+ if (res) {
-+ dev_err(&dev->ofdev->dev, "link update failed (%d).", res);
-+ return ethtool_op_get_link(ndev);
-+ }
-+
-+ return dev->phy_dev->link;
-+}
-+
-+static int emac_mdio_read_link(struct mii_phy *phy)
-+{
-+ struct net_device *ndev = phy->dev;
-+ struct emac_instance *dev = netdev_priv(ndev);
-+ int res;
-+
-+ res = phy_read_status(dev->phy_dev);
-+ if (res)
-+ return res;
-+
-+ dev->phy.speed = phy->speed;
-+ dev->phy.duplex = phy->duplex;
-+ dev->phy.pause = phy->pause;
-+ dev->phy.asym_pause = phy->asym_pause;
-+ return 0;
-+}
-+
-+static int emac_mdio_init_phy(struct mii_phy *phy)
-+{
-+ struct net_device *ndev = phy->dev;
-+ struct emac_instance *dev = netdev_priv(ndev);
-+
-+ phy_start(dev->phy_dev);
-+ dev->phy.autoneg = phy->autoneg;
-+ dev->phy.speed = phy->speed;
-+ dev->phy.duplex = phy->duplex;
-+ dev->phy.advertising = phy->advertising;
-+ dev->phy.pause = phy->pause;
-+ dev->phy.asym_pause = phy->asym_pause;
-+
-+ return phy_init_hw(dev->phy_dev);
-+}
-+
-+static const struct mii_phy_ops emac_dt_mdio_phy_ops = {
-+ .init = emac_mdio_init_phy,
-+ .setup_aneg = emac_mdio_setup_aneg,
-+ .setup_forced = emac_mdio_setup_forced,
-+ .poll_link = emac_mdio_poll_link,
-+ .read_link = emac_mdio_read_link,
-+};
-+
-+static int emac_dt_mdio_probe(struct emac_instance *dev)
-+{
-+ struct device_node *mii_np;
-+ int res;
-+
-+ mii_np = of_get_child_by_name(dev->ofdev->dev.of_node, "mdio");
-+ if (!mii_np) {
-+ dev_err(&dev->ofdev->dev, "no mdio definition found.");
-+ return -ENODEV;
-+ }
-+
-+ if (!of_device_is_available(mii_np)) {
-+ res = 1;
-+ goto put_node;
-+ }
-+
-+ dev->mii_bus = devm_mdiobus_alloc(&dev->ofdev->dev);
-+ if (!dev->mii_bus) {
-+ res = -ENOMEM;
-+ goto put_node;
-+ }
-+
-+ dev->mii_bus->priv = dev->ndev;
-+ dev->mii_bus->parent = dev->ndev->dev.parent;
-+ dev->mii_bus->name = "emac_mdio";
-+ dev->mii_bus->read = &emac_mii_bus_read;
-+ dev->mii_bus->write = &emac_mii_bus_write;
-+ dev->mii_bus->reset = &emac_mii_bus_reset;
-+ snprintf(dev->mii_bus->id, MII_BUS_ID_SIZE, "%s", dev->ofdev->name);
-+ res = of_mdiobus_register(dev->mii_bus, mii_np);
-+ if (res) {
-+ dev_err(&dev->ofdev->dev, "cannot register MDIO bus %s (%d)",
-+ dev->mii_bus->name, res);
-+ }
-+
-+ put_node:
-+ of_node_put(mii_np);
-+ return res;
-+}
-+
-+static int emac_dt_phy_probe(struct emac_instance *dev,
-+ struct device_node *phy_handle)
-+{
-+ u32 phy_flags = 0;
-+ int res;
-+
-+ res = of_property_read_u32(phy_handle, "phy-flags", &phy_flags);
-+ if (res < 0 && res != -EINVAL)
-+ return res;
-+
-+ dev->phy.def = devm_kzalloc(&dev->ofdev->dev, sizeof(*dev->phy.def),
-+ GFP_KERNEL);
-+ if (!dev->phy.def)
-+ return -ENOMEM;
-+
-+ dev->phy_dev = of_phy_connect(dev->ndev, phy_handle,
-+ &emac_adjust_link, phy_flags,
-+ PHY_INTERFACE_MODE_RGMII);
-+ if (!dev->phy_dev) {
-+ dev_err(&dev->ofdev->dev, "failed to connect to PHY.\n");
-+ return -ENODEV;
-+ }
-+
-+ dev->phy.def->phy_id = dev->phy_dev->drv->phy_id;
-+ dev->phy.def->phy_id_mask = dev->phy_dev->drv->phy_id_mask;
-+ dev->phy.def->name = dev->phy_dev->drv->name;
-+ dev->phy.def->ops = &emac_dt_mdio_phy_ops;
-+ dev->phy.features = dev->phy_dev->supported;
-+ dev->phy.address = dev->phy_dev->mdio.addr;
-+ dev->phy.mode = dev->phy_dev->interface;
-+ return 0;
-+}
-+
-+static int emac_probe_dt_phy(struct emac_instance *dev)
-+{
-+ struct device_node *np = dev->ofdev->dev.of_node;
-+ struct device_node *phy_handle;
-+ int res = 0;
-+
-+ phy_handle = of_parse_phandle(np, "phy-handle", 0);
-+
-+ if (phy_handle) {
-+ res = emac_dt_mdio_probe(dev);
-+ if (!res) {
-+ res = emac_dt_phy_probe(dev, phy_handle);
-+ if (!res)
-+ res = 1;
-+ else
-+ mdiobus_unregister(dev->mii_bus);
-+ }
-+ }
-+
-+ of_node_put(phy_handle);
-+ /* if no phy device was specified in the device tree, then we fallback
-+ * to the old emac_phy.c probe code for compatibility reasons.
-+ */
-+ return res;
-+}
-+
- static int emac_init_phy(struct emac_instance *dev)
- {
- struct device_node *np = dev->ofdev->dev.of_node;
-@@ -2492,6 +2716,22 @@ static int emac_init_phy(struct emac_ins
-
- emac_configure(dev);
-
-+ if (emac_has_feature(dev, EMAC_FTR_HAS_RGMII)) {
-+ int res = emac_probe_dt_phy(dev);
-+
-+ if (res == 1) {
-+ mutex_unlock(&emac_phy_map_lock);
-+ goto init_phy;
-+ } else if (res < 0) {
-+ mutex_unlock(&emac_phy_map_lock);
-+ dev_err(&dev->ofdev->dev, "failed to attach dt phy (%d).\n",
-+ res);
-+ return res;
-+ }
-+
-+ /* continue with old code */
-+ }
-+
- if (dev->phy_address != 0xffffffff)
- phy_map = ~(1 << dev->phy_address);
-
-@@ -2519,6 +2759,7 @@ static int emac_init_phy(struct emac_ins
- return -ENXIO;
- }
-
-+ init_phy:
- /* Init PHY */
- if (dev->phy.def->ops->init)
- dev->phy.def->ops->init(&dev->phy);
-@@ -2988,6 +3229,12 @@ static int emac_remove(struct platform_d
- if (emac_has_feature(dev, EMAC_FTR_HAS_ZMII))
- zmii_detach(dev->zmii_dev, dev->zmii_port);
-
-+ if (dev->phy_dev)
-+ phy_disconnect(dev->phy_dev);
-+
-+ if (dev->mii_bus)
-+ mdiobus_unregister(dev->mii_bus);
-+
- busy_phy_map &= ~(1 << dev->phy.address);
- DBG(dev, "busy_phy_map now %#x" NL, busy_phy_map);
-
---- a/drivers/net/ethernet/ibm/emac/core.h
-+++ b/drivers/net/ethernet/ibm/emac/core.h
-@@ -199,6 +199,10 @@ struct emac_instance {
- struct emac_instance *mdio_instance;
- struct mutex mdio_lock;
-
-+ /* Device-tree based phy configuration */
-+ struct mii_bus *mii_bus;
-+ struct phy_device *phy_dev;
-+
- /* ZMII infos if any */
- u32 zmii_ph;
- u32 zmii_port;
+++ /dev/null
-From b2e79053e7456a961249c8865214a1e95b49c863 Mon Sep 17 00:00:00 2001
-From: Christian Lamparter <chunkeey@googlemail.com>
-Date: Sat, 3 Jun 2017 18:16:19 +0200
-Subject: [PATCH] net: emac: fix reset timeout with AR8035 phy
-
-This patch fixes a problem where the AR8035 PHY can't be
-detected on an Cisco Meraki MR24, if the ethernet cable is
-not connected on boot.
-
-Russell Senior provided steps to reproduce the issue:
-|Disconnect ethernet cable, apply power, wait until device has booted,
-|plug in ethernet, check for interfaces, no eth0 is listed.
-|
-|This appears to be a problem during probing of the AR8035 Phy chip.
-|When ethernet has no link, the phy detection fails, and eth0 is not
-|created. Plugging ethernet later has no effect, because there is no
-|interface as far as the kernel is concerned. The relevant part of
-|the boot log looks like this:
-|this is the failing case:
-|
-|[ 0.876611] /plb/opb/emac-rgmii@ef601500: input 0 in RGMII mode
-|[ 0.882532] /plb/opb/ethernet@ef600c00: reset timeout
-|[ 0.888546] /plb/opb/ethernet@ef600c00: can't find PHY!
-|and the succeeding case:
-|
-|[ 0.876672] /plb/opb/emac-rgmii@ef601500: input 0 in RGMII mode
-|[ 0.883952] eth0: EMAC-0 /plb/opb/ethernet@ef600c00, MAC 00:01:..
-|[ 0.890822] eth0: found Atheros 8035 Gigabit Ethernet PHY (0x01)
-
-Based on the comment and the commit message of
-commit 23fbb5a87c56 ("emac: Fix EMAC soft reset on 460EX/GT").
-This is because the AR8035 PHY doesn't provide the TX Clock,
-if the ethernet cable is not attached. This causes the reset
-to timeout and the PHY detection code in emac_init_phy() is
-unable to detect the AR8035 PHY. As a result, the emac driver
-bails out early and the user left with no ethernet.
-
-In order to stay compatible with existing configurations, the driver
-tries the current reset approach at first. Only if the first attempt
-timed out, it does perform one more retry with the clock input
-temporarily switched to the internal clock source for just the
-duration of the reset.
-
-LEDE-Bug: #687 <https://bugs.lede-project.org/index.php?do=details&task_id=687>
-
-Cc: Chris Blake <chrisrblake93@gmail.com>
-Reported-by: Russell Senior <russell@personaltelco.net>
-Fixes: 23fbb5a87c56e98 ("emac: Fix EMAC soft reset on 460EX/GT")
-Reviewed-by: Andrew Lunn <andrew@lunn.ch>
-Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
----
- drivers/net/ethernet/ibm/emac/core.c | 26 ++++++++++++++++++++++----
- 1 file changed, 22 insertions(+), 4 deletions(-)
-
---- a/drivers/net/ethernet/ibm/emac/core.c
-+++ b/drivers/net/ethernet/ibm/emac/core.c
-@@ -352,6 +352,7 @@ static int emac_reset(struct emac_instan
- {
- struct emac_regs __iomem *p = dev->emacp;
- int n = 20;
-+ bool __maybe_unused try_internal_clock = false;
-
- DBG(dev, "reset" NL);
-
-@@ -364,6 +365,7 @@ static int emac_reset(struct emac_instan
- }
-
- #ifdef CONFIG_PPC_DCR_NATIVE
-+do_retry:
- /*
- * PPC460EX/GT Embedded Processor Advanced User's Manual
- * section 28.10.1 Mode Register 0 (EMACx_MR0) states:
-@@ -371,10 +373,19 @@ static int emac_reset(struct emac_instan
- * of the EMAC. If none is present, select the internal clock
- * (SDR0_ETH_CFG[EMACx_PHY_CLK] = 1).
- * After a soft reset, select the external clock.
-+ *
-+ * The AR8035-A PHY Meraki MR24 does not provide a TX Clk if the
-+ * ethernet cable is not attached. This causes the reset to timeout
-+ * and the PHY detection code in emac_init_phy() is unable to
-+ * communicate and detect the AR8035-A PHY. As a result, the emac
-+ * driver bails out early and the user has no ethernet.
-+ * In order to stay compatible with existing configurations, the
-+ * driver will temporarily switch to the internal clock, after
-+ * the first reset fails.
- */
- if (emac_has_feature(dev, EMAC_FTR_460EX_PHY_CLK_FIX)) {
-- if (dev->phy_address == 0xffffffff &&
-- dev->phy_map == 0xffffffff) {
-+ if (try_internal_clock || (dev->phy_address == 0xffffffff &&
-+ dev->phy_map == 0xffffffff)) {
- /* No PHY: select internal loop clock before reset */
- dcri_clrset(SDR0, SDR0_ETH_CFG,
- 0, SDR0_ETH_CFG_ECS << dev->cell_index);
-@@ -392,8 +403,15 @@ static int emac_reset(struct emac_instan
-
- #ifdef CONFIG_PPC_DCR_NATIVE
- if (emac_has_feature(dev, EMAC_FTR_460EX_PHY_CLK_FIX)) {
-- if (dev->phy_address == 0xffffffff &&
-- dev->phy_map == 0xffffffff) {
-+ if (!n && !try_internal_clock) {
-+ /* first attempt has timed out. */
-+ n = 20;
-+ try_internal_clock = true;
-+ goto do_retry;
-+ }
-+
-+ if (try_internal_clock || (dev->phy_address == 0xffffffff &&
-+ dev->phy_map == 0xffffffff)) {
- /* No PHY: restore external clock source after reset */
- dcri_clrset(SDR0, SDR0_ETH_CFG,
- SDR0_ETH_CFG_ECS << dev->cell_index, 0);
+++ /dev/null
-From 419992bae5aaa4e06402e0b7c79fcf7bcb6b4764 Mon Sep 17 00:00:00 2001
-From: Christian Lamparter <chunkeey@googlemail.com>
-Date: Thu, 2 Jun 2016 00:48:46 +0200
-Subject: [PATCH] usb: xhci: add firmware loader for uPD720201 and uPD720202
- w/o ROM
-
-This patch adds a firmware loader for the uPD720201K8-711-BAC-A
-and uPD720202K8-711-BAA-A variant. Both of these chips are listed
-in Renesas' R19UH0078EJ0500 Rev.5.00 "User's Manual: Hardware" as
-devices which need the firmware loader on page 2 in order to
-work as they "do not support the External ROM".
-
-The "Firmware Download Sequence" is describe in chapter
-"7.1 FW Download Interface" R19UH0078EJ0500 Rev.5.00 page 131.
-
-The firmware "K2013080.mem" is available from a USB3.0 Host to
-PCIe Adapter (PP2U-E card) "Firmware download" archive. An
-alternative version can be sourced from Netgear's WNDR4700 GPL
-archives.
-
-The release notes of the PP2U-E's "Firmware Download" ver 2.0.1.3
-(2012-06-15) state that the firmware is for the following devices:
- - uPD720201 ES 2.0 sample whose revision ID is 2.
- - uPD720201 ES 2.1 sample & CS sample & Mass product, ID is 3.
- - uPD720202 ES 2.0 sample & CS sample & Mass product, ID is 2.
-
-If someone from Renesas is listening: It would be great, if these
-firmwares could be added to linux-firmware.git.
-
-Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
-Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
----
- drivers/usb/host/xhci-pci.c | 492 ++++++++++++++++++++++++++++++++++++++++++++
- 1 file changed, 492 insertions(+)
-
---- a/drivers/usb/host/xhci-pci.c
-+++ b/drivers/usb/host/xhci-pci.c
-@@ -24,6 +24,8 @@
- #include <linux/slab.h>
- #include <linux/module.h>
- #include <linux/acpi.h>
-+#include <linux/firmware.h>
-+#include <asm/unaligned.h>
-
- #include "xhci.h"
- #include "xhci-trace.h"
-@@ -239,6 +241,458 @@ static void xhci_pme_acpi_rtd3_enable(st
- static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { }
- #endif /* CONFIG_ACPI */
-
-+static const struct renesas_fw_entry {
-+ const char *firmware_name;
-+ u16 device;
-+ u8 revision;
-+ u16 expected_version;
-+} renesas_fw_table[] = {
-+ /*
-+ * Only the uPD720201K8-711-BAC-A or uPD720202K8-711-BAA-A
-+ * are listed in R19UH0078EJ0500 Rev.5.00 as devices which
-+ * need the software loader.
-+ *
-+ * PP2U/ReleaseNote_USB3-201-202-FW.txt:
-+ *
-+ * Note: This firmware is for the following devices.
-+ * - uPD720201 ES 2.0 sample whose revision ID is 2.
-+ * - uPD720201 ES 2.1 sample & CS sample & Mass product, ID is 3.
-+ * - uPD720202 ES 2.0 sample & CS sample & Mass product, ID is 2.
-+ */
-+ { "K2013080.mem", 0x0014, 0x02, 0x2013 },
-+ { "K2013080.mem", 0x0014, 0x03, 0x2013 },
-+ { "K2013080.mem", 0x0015, 0x02, 0x2013 },
-+};
-+
-+static const struct renesas_fw_entry *renesas_needs_fw_dl(struct pci_dev *dev)
-+{
-+ const struct renesas_fw_entry *entry;
-+ size_t i;
-+
-+ /* This loader will only work with a RENESAS device. */
-+ if (!(dev->vendor == PCI_VENDOR_ID_RENESAS))
-+ return NULL;
-+
-+ for (i = 0; i < ARRAY_SIZE(renesas_fw_table); i++) {
-+ entry = &renesas_fw_table[i];
-+ if (entry->device == dev->device &&
-+ entry->revision == dev->revision)
-+ return entry;
-+ }
-+
-+ return NULL;
-+}
-+
-+static int renesas_fw_download_image(struct pci_dev *dev,
-+ const u32 *fw,
-+ size_t step)
-+{
-+ size_t i;
-+ int err;
-+ u8 fw_status;
-+ bool data0_or_data1;
-+
-+ /*
-+ * The hardware does alternate between two 32-bit pages.
-+ * (This is because each row of the firmware is 8 bytes).
-+ *
-+ * for even steps we use DATA0, for odd steps DATA1.
-+ */
-+ data0_or_data1 = (step & 1) == 1;
-+
-+ /* step+1. Read "Set DATAX" and confirm it is cleared. */
-+ for (i = 0; i < 10000; i++) {
-+ err = pci_read_config_byte(dev, 0xF5, &fw_status);
-+ if (err)
-+ return pcibios_err_to_errno(err);
-+ if (!(fw_status & BIT(data0_or_data1)))
-+ break;
-+
-+ udelay(1);
-+ }
-+ if (i == 10000)
-+ return -ETIMEDOUT;
-+
-+ /*
-+ * step+2. Write FW data to "DATAX".
-+ * "LSB is left" => force little endian
-+ */
-+ err = pci_write_config_dword(dev, data0_or_data1 ? 0xFC : 0xF8,
-+ (__force u32) cpu_to_le32(fw[step]));
-+ if (err)
-+ return pcibios_err_to_errno(err);
-+
-+ udelay(100);
-+
-+ /* step+3. Set "Set DATAX". */
-+ err = pci_write_config_byte(dev, 0xF5, BIT(data0_or_data1));
-+ if (err)
-+ return pcibios_err_to_errno(err);
-+
-+ return 0;
-+}
-+
-+static int renesas_fw_verify(struct pci_dev *dev,
-+ const void *fw_data,
-+ size_t length)
-+{
-+ const struct renesas_fw_entry *entry = renesas_needs_fw_dl(dev);
-+ u16 fw_version_pointer;
-+ u16 fw_version;
-+
-+ if (!entry)
-+ return -EINVAL;
-+
-+ /*
-+ * The Firmware's Data Format is describe in
-+ * "6.3 Data Format" R19UH0078EJ0500 Rev.5.00 page 124
-+ */
-+
-+ /* "Each row is 8 bytes". => firmware size must be a multiple of 8. */
-+ if (length % 8 != 0) {
-+ dev_err(&dev->dev, "firmware size is not a multipe of 8.");
-+ return -EINVAL;
-+ }
-+
-+ /*
-+ * The bootrom chips of the big brother have sizes up to 64k, let's
-+ * assume that's the biggest the firmware can get.
-+ */
-+ if (length < 0x1000 || length >= 0x10000) {
-+ dev_err(&dev->dev, "firmware is size %zd is not (4k - 64k).",
-+ length);
-+ return -EINVAL;
-+ }
-+
-+ /* The First 2 bytes are fixed value (55aa). "LSB on Left" */
-+ if (get_unaligned_le16(fw_data) != 0x55aa) {
-+ dev_err(&dev->dev, "no valid firmware header found.");
-+ return -EINVAL;
-+ }
-+
-+ /* verify the firmware version position and print it. */
-+ fw_version_pointer = get_unaligned_le16(fw_data + 4);
-+ if (fw_version_pointer + 2 >= length) {
-+ dev_err(&dev->dev, "firmware version pointer is outside of the firmware image.");
-+ return -EINVAL;
-+ }
-+
-+ fw_version = get_unaligned_le16(fw_data + fw_version_pointer);
-+ dev_dbg(&dev->dev, "got firmware version: %02x.", fw_version);
-+
-+ if (fw_version != entry->expected_version) {
-+ dev_err(&dev->dev, "firmware version mismatch, expected version: %02x.",
-+ entry->expected_version);
-+ return -EINVAL;
-+ }
-+
-+ return 0;
-+}
-+
-+static int renesas_fw_check_running(struct pci_dev *pdev)
-+{
-+ int err;
-+ u8 fw_state;
-+
-+ /*
-+ * Test if the device is actually needing the firmware. As most
-+ * BIOSes will initialize the device for us. If the device is
-+ * initialized.
-+ */
-+ err = pci_read_config_byte(pdev, 0xF4, &fw_state);
-+ if (err)
-+ return pcibios_err_to_errno(err);
-+
-+ /*
-+ * Check if "FW Download Lock" is locked. If it is and the FW is
-+ * ready we can simply continue. If the FW is not ready, we have
-+ * to give up.
-+ */
-+ if (fw_state & BIT(1)) {
-+ dev_dbg(&pdev->dev, "FW Download Lock is engaged.");
-+
-+ if (fw_state & BIT(4))
-+ return 0;
-+
-+ dev_err(&pdev->dev, "FW Download Lock is set and FW is not ready. Giving Up.");
-+ return -EIO;
-+ }
-+
-+ /*
-+ * Check if "FW Download Enable" is set. If someone (us?) tampered
-+ * with it and it can't be resetted, we have to give up too... and
-+ * ask for a forgiveness and a reboot.
-+ */
-+ if (fw_state & BIT(0)) {
-+ dev_err(&pdev->dev, "FW Download Enable is stale. Giving Up (poweroff/reboot needed).");
-+ return -EIO;
-+ }
-+
-+ /* Otherwise, Check the "Result Code" Bits (6:4) and act accordingly */
-+ switch ((fw_state & 0x70)) {
-+ case 0: /* No result yet */
-+ dev_dbg(&pdev->dev, "FW is not ready/loaded yet.");
-+
-+ /* tell the caller, that this device needs the firmware. */
-+ return 1;
-+
-+ case BIT(4): /* Success, device should be working. */
-+ dev_dbg(&pdev->dev, "FW is ready.");
-+ return 0;
-+
-+ case BIT(5): /* Error State */
-+ dev_err(&pdev->dev, "hardware is in an error state. Giving up (poweroff/reboot needed).");
-+ return -ENODEV;
-+
-+ default: /* All other states are marked as "Reserved states" */
-+ dev_err(&pdev->dev, "hardware is in an invalid state %x. Giving up (poweroff/reboot needed).",
-+ (fw_state & 0x70) >> 4);
-+ return -EINVAL;
-+ }
-+}
-+
-+static int renesas_hw_check_run_stop_busy(struct pci_dev *pdev)
-+{
-+#if 0
-+ u32 val;
-+
-+ /*
-+ * 7.1.3 Note 3: "... must not set 'FW Download Enable' when
-+ * 'RUN/STOP' of USBCMD Register is set"
-+ */
-+ val = readl(hcd->regs + 0x20);
-+ if (val & BIT(0)) {
-+ dev_err(&pdev->dev, "hardware is busy and can't receive a FW.");
-+ return -EBUSY;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+static int renesas_fw_download(struct pci_dev *pdev,
-+ const struct firmware *fw, unsigned int retry_counter)
-+{
-+ const u32 *fw_data = (const u32 *) fw->data;
-+ size_t i;
-+ int err;
-+ u8 fw_status;
-+
-+ /*
-+ * For more information and the big picture: please look at the
-+ * "Firmware Download Sequence" in "7.1 FW Download Interface"
-+ * of R19UH0078EJ0500 Rev.5.00 page 131
-+ */
-+ err = renesas_hw_check_run_stop_busy(pdev);
-+ if (err)
-+ return err;
-+
-+ /*
-+ * 0. Set "FW Download Enable" bit in the
-+ * "FW Download Control & Status Register" at 0xF4
-+ */
-+ err = pci_write_config_byte(pdev, 0xF4, BIT(0));
-+ if (err)
-+ return pcibios_err_to_errno(err);
-+
-+ /* 1 - 10 follow one step after the other. */
-+ for (i = 0; i < fw->size / 4; i++) {
-+ err = renesas_fw_download_image(pdev, fw_data, i);
-+ if (err) {
-+ dev_err(&pdev->dev, "Firmware Download Step %zd failed at position %zd bytes with (%d).",
-+ i, i * 4, err);
-+ return err;
-+ }
-+ }
-+
-+ /*
-+ * This sequence continues until the last data is written to
-+ * "DATA0" or "DATA1". Naturally, we wait until "SET DATA0/1"
-+ * is cleared by the hardware beforehand.
-+ */
-+ for (i = 0; i < 10000; i++) {
-+ err = pci_read_config_byte(pdev, 0xF5, &fw_status);
-+ if (err)
-+ return pcibios_err_to_errno(err);
-+ if (!(fw_status & (BIT(0) | BIT(1))))
-+ break;
-+
-+ udelay(1);
-+ }
-+ if (i == 10000)
-+ dev_warn(&pdev->dev, "Final Firmware Download step timed out.");
-+
-+ /*
-+ * 11. After finishing writing the last data of FW, the
-+ * System Software must clear "FW Download Enable"
-+ */
-+ err = pci_write_config_byte(pdev, 0xF4, 0);
-+ if (err)
-+ return pcibios_err_to_errno(err);
-+
-+ /* 12. Read "Result Code" and confirm it is good. */
-+ for (i = 0; i < 10000; i++) {
-+ err = pci_read_config_byte(pdev, 0xF4, &fw_status);
-+ if (err)
-+ return pcibios_err_to_errno(err);
-+ if (fw_status & BIT(4))
-+ break;
-+
-+ udelay(1);
-+ }
-+ if (i == 10000) {
-+ /* Timed out / Error - let's see if we can fix this */
-+ err = renesas_fw_check_running(pdev);
-+ switch (err) {
-+ case 0: /*
-+ * we shouldn't end up here.
-+ * maybe it took a little bit longer.
-+ * But all should be well?
-+ */
-+ break;
-+
-+ case 1: /* (No result yet? - we can try to retry) */
-+ if (retry_counter < 10) {
-+ retry_counter++;
-+ dev_warn(&pdev->dev, "Retry Firmware download: %d try.",
-+ retry_counter);
-+ return renesas_fw_download(pdev, fw,
-+ retry_counter);
-+ }
-+ return -ETIMEDOUT;
-+
-+ default:
-+ return err;
-+ }
-+ }
-+ /*
-+ * Optional last step: Engage Firmware Lock
-+ *
-+ * err = pci_write_config_byte(pdev, 0xF4, BIT(2));
-+ * if (err)
-+ * return pcibios_err_to_errno(err);
-+ */
-+
-+ return 0;
-+}
-+
-+struct renesas_fw_ctx {
-+ struct pci_dev *pdev;
-+ const struct pci_device_id *id;
-+ bool resume;
-+};
-+
-+static int xhci_pci_probe(struct pci_dev *pdev,
-+ const struct pci_device_id *id);
-+
-+static void renesas_fw_callback(const struct firmware *fw,
-+ void *context)
-+{
-+ struct renesas_fw_ctx *ctx = context;
-+ struct pci_dev *pdev = ctx->pdev;
-+ struct device *parent = pdev->dev.parent;
-+ int err = -ENOENT;
-+
-+ if (fw) {
-+ err = renesas_fw_verify(pdev, fw->data, fw->size);
-+ if (!err) {
-+ err = renesas_fw_download(pdev, fw, 0);
-+ release_firmware(fw);
-+ if (!err) {
-+ if (ctx->resume)
-+ return;
-+
-+ err = xhci_pci_probe(pdev, ctx->id);
-+ if (!err) {
-+ /* everything worked */
-+ devm_kfree(&pdev->dev, ctx);
-+ return;
-+ }
-+
-+ /* in case of an error - fall through */
-+ } else {
-+ dev_err(&pdev->dev, "firmware failed to download (%d).",
-+ err);
-+ }
-+ }
-+ } else {
-+ dev_err(&pdev->dev, "firmware failed to load (%d).", err);
-+ }
-+
-+ dev_info(&pdev->dev, "Unloading driver");
-+
-+ if (parent)
-+ device_lock(parent);
-+
-+ device_release_driver(&pdev->dev);
-+
-+ if (parent)
-+ device_unlock(parent);
-+
-+ pci_dev_put(pdev);
-+}
-+
-+static int renesas_fw_alive_check(struct pci_dev *pdev)
-+{
-+ const struct renesas_fw_entry *entry;
-+ int err;
-+
-+ /* check if we have a eligible RENESAS' uPD720201/2 w/o FW. */
-+ entry = renesas_needs_fw_dl(pdev);
-+ if (!entry)
-+ return 0;
-+
-+ err = renesas_fw_check_running(pdev);
-+ /* Also go ahead, if the firmware is running */
-+ if (err == 0)
-+ return 0;
-+
-+ /* At this point, we can be sure that the FW isn't ready. */
-+ return err;
-+}
-+
-+static int renesas_fw_download_to_hw(struct pci_dev *pdev,
-+ const struct pci_device_id *id,
-+ bool do_resume)
-+{
-+ const struct renesas_fw_entry *entry;
-+ struct renesas_fw_ctx *ctx;
-+ int err;
-+
-+ /* check if we have a eligible RENESAS' uPD720201/2 w/o FW. */
-+ entry = renesas_needs_fw_dl(pdev);
-+ if (!entry)
-+ return 0;
-+
-+ err = renesas_fw_check_running(pdev);
-+ /* Continue ahead, if the firmware is already running. */
-+ if (err == 0)
-+ return 0;
-+
-+ if (err != 1)
-+ return err;
-+
-+ ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
-+ if (!ctx)
-+ return -ENOMEM;
-+ ctx->pdev = pdev;
-+ ctx->resume = do_resume;
-+ ctx->id = id;
-+
-+ pci_dev_get(pdev);
-+ err = request_firmware_nowait(THIS_MODULE, 1, entry->firmware_name,
-+ &pdev->dev, GFP_KERNEL, ctx, renesas_fw_callback);
-+ if (err) {
-+ pci_dev_put(pdev);
-+ return err;
-+ }
-+
-+ /*
-+ * The renesas_fw_callback() callback will continue the probe
-+ * process, once it aquires the firmware.
-+ */
-+ return 1;
-+}
-+
- /* called during probe() after chip reset completes */
- static int xhci_pci_setup(struct usb_hcd *hcd)
- {
-@@ -278,6 +732,22 @@ static int xhci_pci_probe(struct pci_dev
- struct hc_driver *driver;
- struct usb_hcd *hcd;
-
-+ /*
-+ * Check if this device is a RENESAS uPD720201/2 device.
-+ * Otherwise, we can continue with xhci_pci_probe as usual.
-+ */
-+ retval = renesas_fw_download_to_hw(dev, id, false);
-+ switch (retval) {
-+ case 0:
-+ break;
-+
-+ case 1: /* let it load the firmware and recontinue the probe. */
-+ return 0;
-+
-+ default:
-+ return retval;
-+ };
-+
- driver = (struct hc_driver *)id->driver_data;
-
- /* Prevent runtime suspending between USB-2 and USB-3 initialization */
-@@ -335,6 +805,16 @@ static void xhci_pci_remove(struct pci_d
- {
- struct xhci_hcd *xhci;
-
-+ if (renesas_fw_alive_check(dev)) {
-+ /*
-+ * bail out early, if this was a renesas device w/o FW.
-+ * Else we might hit the NMI watchdog in xhci_handsake
-+ * during xhci_reset as part of the driver's unloading.
-+ * which we forced in the renesas_fw_callback().
-+ */
-+ return;
-+ }
-+
- xhci = hcd_to_xhci(pci_get_drvdata(dev));
- xhci->xhc_state |= XHCI_STATE_REMOVING;
- if (xhci->shared_hcd) {
+++ /dev/null
-From a0dc613140bab907a3d5787a7ae7b0638bf674d0 Mon Sep 17 00:00:00 2001
-From: Christian Lamparter <chunkeey@gmail.com>
-Date: Thu, 23 Jun 2016 20:28:20 +0200
-Subject: [PATCH] usb: xhci: force MSI for uPD720201 and
- uPD720202
-
-The APM82181 does not support MSI-X. When probed, it will
-produce a noisy warning.
-
----
- drivers/usb/host/pci-quirks.c | 362 ++++++++++++++++++++++++++++++++++++++++++
- 1 file changed, 362 insertions(+)
-
---- a/drivers/usb/host/xhci-pci.c
-+++ b/drivers/usb/host/xhci-pci.c
-@@ -196,7 +196,7 @@ static void xhci_pci_quirks(struct devic
- xhci->quirks |= XHCI_TRUST_TX_LENGTH;
- if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
- pdev->device == 0x0015)
-- xhci->quirks |= XHCI_RESET_ON_RESUME;
-+ xhci->quirks |= XHCI_RESET_ON_RESUME | XHCI_FORCE_MSI;
- if (pdev->vendor == PCI_VENDOR_ID_VIA)
- xhci->quirks |= XHCI_RESET_ON_RESUME;
-
---- a/drivers/usb/host/xhci.c
-+++ b/drivers/usb/host/xhci.c
-@@ -390,10 +390,14 @@ static int xhci_try_enable_msi(struct us
- free_irq(hcd->irq, hcd);
- hcd->irq = 0;
-
-- ret = xhci_setup_msix(xhci);
-- if (ret)
-- /* fall back to msi*/
-+ if (xhci->quirks & XHCI_FORCE_MSI) {
- ret = xhci_setup_msi(xhci);
-+ } else {
-+ ret = xhci_setup_msix(xhci);
-+ if (ret)
-+ /* fall back to msi*/
-+ ret = xhci_setup_msi(xhci);
-+ }
-
- if (!ret)
- /* hcd->irq is 0, we have MSI */
---- a/drivers/usb/host/xhci.h
-+++ b/drivers/usb/host/xhci.h
-@@ -1680,6 +1680,7 @@ struct xhci_hcd {
- /* support xHCI 0.96 spec USB2 software LPM */
- unsigned sw_lpm_support:1;
- /* support xHCI 1.0 spec USB2 hardware LPM */
-+#define XHCI_FORCE_MSI (1 << 24)
- unsigned hw_lpm_support:1;
- /* cached usb2 extened protocol capabilites */
- u32 *ext_caps;
+++ /dev/null
---- a/drivers/usb/dwc2/platform.c
-+++ b/drivers/usb/dwc2/platform.c
-@@ -279,6 +279,37 @@ static int dwc2_get_dr_mode(struct dwc2_
- return 0;
- }
-
-+static const struct dwc2_core_params params_amcc_dwc_otg = {
-+ .otg_cap = DWC2_CAP_PARAM_HNP_SRP_CAPABLE,
-+ .otg_ver = -1,
-+ .dma_enable = -1,
-+ .dma_desc_enable = -1,
-+ .speed = -1,
-+ .enable_dynamic_fifo = -1,
-+ .en_multiple_tx_fifo = -1,
-+ .host_rx_fifo_size = -1,
-+ .host_nperio_tx_fifo_size = -1,
-+ .host_perio_tx_fifo_size = -1,
-+ .max_transfer_size = -1,
-+ .max_packet_count = -1,
-+ .host_channels = -1,
-+ .phy_type = -1,
-+ .phy_utmi_width = -1,
-+ .phy_ulpi_ddr = -1,
-+ .phy_ulpi_ext_vbus = -1,
-+ .i2c_enable = -1,
-+ .ulpi_fs_ls = -1,
-+ .host_support_fs_ls_low_power = -1,
-+ .host_ls_low_power_phy_clk = -1,
-+ .ts_dline = -1,
-+ .reload_ctl = -1,
-+ .ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
-+ GAHBCFG_HBSTLEN_SHIFT,
-+ .uframe_sched = -1,
-+ .external_id_pin_ctl = -1,
-+ .hibernation = -1,
-+};
-+
- static int __dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)
- {
- struct platform_device *pdev = to_platform_device(hsotg->dev);
-@@ -511,6 +542,7 @@ static void dwc2_driver_shutdown(struct
- }
-
- static const struct of_device_id dwc2_of_match_table[] = {
-+ { .compatible = "amcc,usb-otg-405ex", .data = ¶ms_amcc_dwc_otg },
- { .compatible = "brcm,bcm2835-usb", .data = ¶ms_bcm2835 },
- { .compatible = "hisilicon,hi6220-usb", .data = ¶ms_hi6220 },
- { .compatible = "rockchip,rk3066-usb", .data = ¶ms_rk3066 },
+++ /dev/null
-From 5ea2e152d846bf60901107fefd81a58f792f3bc2 Mon Sep 17 00:00:00 2001
-From: Christian Lamparter <chunkeey@gmail.com>
-Date: Fri, 10 Jun 2016 03:00:46 +0200
-Subject: [PATCH] hwmon: add driver for Microchip TC654/TC655 PWM fan
- controllers
-
-This patch adds a hwmon driver for the Microchip TC654 and TC655
-Dual SMBus PWM Fan Speed Controllers with Fan Fault detection.
-
-The chip is described in the DS2001734C Spec Document from Microchip.
-It supports:
- - Shared PWM Fan Drive for two fans
- - Provides RPM
- - automatic PWM controller (needs additional
- NTC/PTC Thermistors.)
- - Overtemperature alarm (when using NTC/PTC
- Thermistors)
-
-Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
----
- drivers/hwmon/Kconfig | 10 +
- drivers/hwmon/Makefile | 1 +
- drivers/hwmon/tc654.c | 969 +++++++++++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 980 insertions(+)
- create mode 100644 drivers/hwmon/tc654.c
-
---- a/drivers/hwmon/Kconfig
-+++ b/drivers/hwmon/Kconfig
-@@ -1549,6 +1549,16 @@ config SENSORS_INA3221
- This driver can also be built as a module. If so, the module
- will be called ina3221.
-
-+config SENSORS_TC654
-+ tristate "Microchip TC654 and TC655"
-+ depends on I2C
-+ help
-+ If you say yes here you get support for Microchip TC655 and TC654
-+ Dual PWM Fan Speed Controllers and sensor chips.
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called tc654.
-+
- config SENSORS_TC74
- tristate "Microchip TC74"
- depends on I2C
---- a/drivers/hwmon/Makefile
-+++ b/drivers/hwmon/Makefile
-@@ -148,6 +148,7 @@ obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc4
- obj-$(CONFIG_SENSORS_SMSC47M1) += smsc47m1.o
- obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o
- obj-$(CONFIG_SENSORS_AMC6821) += amc6821.o
-+obj-$(CONFIG_SENSORS_TC654) += tc654.o
- obj-$(CONFIG_SENSORS_TC74) += tc74.o
- obj-$(CONFIG_SENSORS_THMC50) += thmc50.o
- obj-$(CONFIG_SENSORS_TMP102) += tmp102.o
---- /dev/null
-+++ b/drivers/hwmon/tc654.c
-@@ -0,0 +1,969 @@
-+/*
-+ * tc654.c - Support for Microchip TC654/TC655
-+ * "A Dual SMBus PWM FAN Speed Controllers with Fan Fault Detection"
-+ *
-+ * Copyright (c) 2016 Christian Lamparter <chunkeey@gmail.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation version 2 of the License.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * The chip is described in the DS2001734C Spec Document from Microchip.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/init.h>
-+#include <linux/slab.h>
-+#include <linux/jiffies.h>
-+#include <linux/i2c.h>
-+#include <linux/hwmon.h>
-+#include <linux/hwmon-sysfs.h>
-+#include <linux/err.h>
-+#include <linux/mutex.h>
-+#include <linux/thermal.h>
-+
-+/* Hardware definitions */
-+/* 5.1.4 Address Byte stats that TC654/TC655 are fixed at 0x1b */
-+static const unsigned short normal_i2c[] = { 0x1b, I2C_CLIENT_END };
-+
-+enum TC654_REGS {
-+ TC654_REG_RPM1 = 0x00,
-+ TC654_REG_RPM2,
-+ TC654_REG_FAN1_FAULT_THRESH,
-+ TC654_REG_FAN2_FAULT_THRESH,
-+ TC654_REG_CONFIG,
-+ TC654_REG_STATUS,
-+ TC654_REG_DUTY_CYCLE,
-+ TC654_REG_MFR_ID,
-+ TC654_REG_VER_ID,
-+
-+ /* keep last */
-+ __TC654_REG_NUM,
-+};
-+
-+#define TC654_MFR_ID_MICROCHIP 0x84
-+#define TC654_VER_ID 0x00
-+#define TC655_VER_ID 0x01
-+
-+enum TC654_CONTROL_BITS {
-+ TC654_CTRL_SDM = BIT(0),
-+ TC654_CTRL_F1PPR_S = 1,
-+ TC654_CTRL_F1PPR_M = (BIT(1) | BIT(2)),
-+ TC654_CTRL_F2PPR_S = 3,
-+ TC654_CTRL_F2PPR_M = (BIT(3) | BIT(4)),
-+ TC654_CTRL_DUTYC = BIT(5),
-+ TC654_CTRL_RES = BIT(6),
-+ TC654_CTRL_FFCLR = BIT(7),
-+};
-+
-+enum TC654_STATUS_BITS {
-+ TC654_STATUS_F1F = BIT(0),
-+ TC654_STATUS_F2F = BIT(1),
-+ TC654_STATUS_VSTAT = BIT(2),
-+ TC654_STATUS_R1CO = BIT(3),
-+ TC654_STATUS_R2CO = BIT(4),
-+ TC654_STATUS_OTF = BIT(5),
-+};
-+
-+enum TC654_FAN {
-+ TC654_FAN1 = 0,
-+ TC654_FAN2,
-+
-+ /* keep last */
-+ __NUM_TC654_FAN,
-+};
-+
-+enum TC654_FAN_MODE {
-+ TC654_PWM_OFF, /* Shutdown Mode - switch of both fans */
-+ TC654_PWM_VIN, /* Fans will be controlled via V_in analog input pin */
-+ TC654_PWM_3000, /* sets fans to 30% duty cycle */
-+ TC654_PWM_3467,
-+ TC654_PWM_3933, /* default case - if V_in pin is open */
-+ TC654_PWM_4400,
-+ TC654_PWM_4867,
-+ TC654_PWM_5333,
-+ TC654_PWM_5800,
-+ TC654_PWM_6267,
-+ TC654_PWM_6733,
-+ TC654_PWM_7200,
-+ TC654_PWM_7667,
-+ TC654_PWM_8133,
-+ TC654_PWM_8600,
-+ TC654_PWM_9067,
-+ TC654_PWM_9533,
-+ TC654_PWM_10000, /* sets fans to 100% duty cycle */
-+};
-+
-+enum TC654_ALARMS {
-+ TC654_ALARM_FAN1_FAULT,
-+ TC654_ALARM_FAN2_FAULT,
-+ TC654_ALARM_FAN1_COUNTER_OVERFLOW,
-+ TC654_ALARM_FAN2_COUNTER_OVERFLOW,
-+ TC654_ALARM_OVER_TEMPERATURE,
-+
-+ /* KEEP LAST */
-+ __NUM_TC654_ALARMS,
-+};
-+
-+static const struct pwm_table_entry {
-+ u8 min;
-+ enum TC654_FAN_MODE mode;
-+} pwm_table[] = {
-+ { 0, TC654_PWM_OFF },
-+ { 1, TC654_PWM_3000 },
-+ { 88, TC654_PWM_3467 },
-+ {101, TC654_PWM_3933 },
-+ {113, TC654_PWM_4400 },
-+ {125, TC654_PWM_4867 },
-+ {137, TC654_PWM_5333 },
-+ {148, TC654_PWM_5800 },
-+ {160, TC654_PWM_6267 },
-+ {172, TC654_PWM_6733 },
-+ {184, TC654_PWM_7200 },
-+ {196, TC654_PWM_7667 },
-+ {208, TC654_PWM_8133 },
-+ {220, TC654_PWM_8600 },
-+ {232, TC654_PWM_9067 },
-+ {244, TC654_PWM_9533 },
-+ {255, TC654_PWM_10000 },
-+};
-+
-+/* driver context */
-+struct tc654 {
-+ struct i2c_client *client;
-+
-+ struct mutex update_lock;
-+
-+ unsigned long last_updated; /* in jiffies */
-+ u8 cached_regs[__TC654_REG_NUM];
-+
-+ bool valid; /* monitored registers are valid */
-+ u16 fan_input[__NUM_TC654_FAN];
-+ bool alarms[__NUM_TC654_ALARMS];
-+ bool vin_status;
-+ bool pwm_manual;
-+
-+ /* optional cooling device */
-+ struct thermal_cooling_device *cdev;
-+};
-+
-+/* hardware accessors and functions */
-+static int read_tc(struct tc654 *tc, u8 reg)
-+{
-+ s32 status;
-+
-+ if (reg <= TC654_REG_VER_ID) {
-+ /* Table 6.1 states that all registers are readable */
-+ status = i2c_smbus_read_byte_data(tc->client, reg);
-+ } else
-+ status = -EINVAL;
-+
-+ if (status < 0) {
-+ dev_warn(&tc->client->dev, "can't read register 0x%02x due to error (%d)",
-+ reg, status);
-+ } else {
-+ tc->cached_regs[reg] = status;
-+ }
-+
-+ return status;
-+}
-+
-+static int write_tc(struct tc654 *tc, u8 i2c_reg, u8 val)
-+{
-+ s32 status;
-+
-+ /*
-+ * Table 6.1 states that both fan threshold registers,
-+ * the Config and Duty Cycle are writeable.
-+ */
-+ switch (i2c_reg) {
-+ case TC654_REG_FAN1_FAULT_THRESH:
-+ case TC654_REG_FAN2_FAULT_THRESH:
-+ case TC654_REG_DUTY_CYCLE:
-+ case TC654_REG_CONFIG:
-+ status = i2c_smbus_write_byte_data(tc->client, i2c_reg, val);
-+ break;
-+
-+ default:
-+ return -EINVAL;
-+ }
-+
-+ if (status < 0) {
-+ dev_warn(&tc->client->dev, "can't write register 0x%02x with value 0x%02x due to error (%d)",
-+ i2c_reg, val, status);
-+ } else {
-+ tc->cached_regs[i2c_reg] = val;
-+ }
-+
-+ return status;
-+}
-+
-+static int mod_config(struct tc654 *tc, u8 set, u8 clear)
-+{
-+ u8 val = 0;
-+
-+ /* a bit can't be set and cleared on the same time. */
-+ if (set & clear)
-+ return -EINVAL;
-+
-+ /* invalidate data to force re-read from hardware */
-+ tc->valid = false;
-+ val = (tc->cached_regs[TC654_REG_CONFIG] | set) & (~clear);
-+ return write_tc(tc, TC654_REG_CONFIG, val);
-+}
-+
-+static int read_fan_rpm(struct tc654 *tc, enum TC654_FAN fan)
-+{
-+ int ret;
-+
-+ /* 6.1 RPM-OUTPUT1 and RPM-OUTPUT2 registers */
-+ ret = read_tc(tc, fan == TC654_FAN1 ? TC654_REG_RPM1 : TC654_REG_RPM2);
-+ if (ret < 0)
-+ return ret;
-+
-+ /*
-+ * The Resolution Selection Bit in 6.3 CONFIGURATION REGISTER
-+ * is needed to convert the raw value to the RPM.
-+ * 0 = RPM1 and RPM2 use (8-Bit) resolution => * 50 RPM
-+ * 1 = RPM1 and RPM2 use (9-Bit) resolution => * 25 RPM
-+ */
-+ return ret * (25 <<
-+ !(tc->cached_regs[TC654_REG_CONFIG] & TC654_CTRL_RES));
-+}
-+
-+static int write_fan_fault_thresh(struct tc654 *tc, enum TC654_FAN fan,
-+ u16 rpm)
-+{
-+ u8 converted_rpm;
-+
-+ if (rpm > 12750)
-+ return -EINVAL;
-+
-+ /*
-+ * 6.2 FAN_FAULT1 and FAN_FAULT2 Threshold registers
-+ *
-+ * Both registers operate in 50 RPM mode exclusively.
-+ */
-+ converted_rpm = rpm / 50;
-+
-+ /* invalidate data to force re-read from hardware */
-+ tc->valid = false;
-+ return write_tc(tc, fan == TC654_FAN1 ? TC654_REG_FAN1_FAULT_THRESH :
-+ TC654_REG_FAN2_FAULT_THRESH, converted_rpm);
-+}
-+
-+
-+static int read_fan_fault_thresh(struct tc654 *tc, enum TC654_FAN fan)
-+{
-+ /*
-+ * 6.2 FAN_FAULT1 and FAN_FAULT2 Threshold registers
-+ *
-+ * Both registers operate in 50 RPM mode exclusively.
-+ */
-+ return read_tc(tc, fan == TC654_FAN1 ? TC654_REG_FAN1_FAULT_THRESH :
-+ TC654_REG_FAN2_FAULT_THRESH) * 50;
-+}
-+
-+static enum TC654_FAN_MODE get_fan_mode(struct tc654 *tc)
-+{
-+ if (tc->cached_regs[TC654_REG_CONFIG] & TC654_CTRL_SDM) {
-+ return TC654_PWM_OFF;
-+ } else if (tc->cached_regs[TC654_REG_CONFIG] & TC654_CTRL_DUTYC) {
-+ return TC654_PWM_3000 + tc->cached_regs[TC654_REG_DUTY_CYCLE];
-+ } else if (tc->vin_status == 0)
-+ return TC654_PWM_VIN;
-+
-+ return -EINVAL;
-+}
-+
-+static int write_fan_mode(struct tc654 *tc, enum TC654_FAN_MODE mode)
-+{
-+ int err;
-+ u8 pwm_mode;
-+ bool in_sdm;
-+
-+ in_sdm = !!(tc->cached_regs[TC654_REG_CONFIG] &
-+ TC654_CTRL_SDM);
-+
-+ switch (mode) {
-+ case TC654_PWM_OFF:
-+ if (in_sdm)
-+ return 0;
-+
-+ /* Enter Shutdown Mode - Switches off all fans */
-+ err = mod_config(tc, TC654_CTRL_SDM, TC654_CTRL_DUTYC);
-+ if (err)
-+ return err;
-+
-+ return 0;
-+
-+ case TC654_PWM_VIN:
-+ if (tc->vin_status) {
-+ dev_err(&tc->client->dev,
-+ "V_in pin is open, can't enable automatic mode.");
-+ return -EINVAL;
-+ }
-+
-+ err = mod_config(tc, 0, TC654_CTRL_SDM | TC654_CTRL_DUTYC);
-+ if (err)
-+ return err;
-+
-+ tc->pwm_manual = false;
-+ return 0;
-+
-+ case TC654_PWM_3000:
-+ case TC654_PWM_3467:
-+ case TC654_PWM_3933:
-+ case TC654_PWM_4400:
-+ case TC654_PWM_4867:
-+ case TC654_PWM_5333:
-+ case TC654_PWM_5800:
-+ case TC654_PWM_6267:
-+ case TC654_PWM_6733:
-+ case TC654_PWM_7200:
-+ case TC654_PWM_7667:
-+ case TC654_PWM_8133:
-+ case TC654_PWM_8600:
-+ case TC654_PWM_9067:
-+ case TC654_PWM_9533:
-+ case TC654_PWM_10000:
-+ pwm_mode = mode - TC654_PWM_3000;
-+ if (!in_sdm) {
-+ err = write_tc(tc, TC654_REG_DUTY_CYCLE, pwm_mode);
-+ if (err)
-+ return err;
-+ }
-+
-+ err = mod_config(tc, TC654_CTRL_DUTYC, TC654_CTRL_SDM);
-+ if (err)
-+ return err;
-+
-+ tc->pwm_manual = true;
-+
-+ if (in_sdm) {
-+ /*
-+ * In case the TC654/TC655 was in SDM mode, the write
-+ * above into the TC654_REG_DUTY_CYCLE register will
-+ * have no effect because the chip was switched off.
-+ *
-+ * Note: The TC654/TC655 have a special "power-on"
-+ * feature where the PWM will be forced to 100% for
-+ * one full second in order to spin-up a resting fan.
-+ */
-+ err = write_tc(tc, TC654_REG_DUTY_CYCLE, pwm_mode);
-+ if (err)
-+ return err;
-+ }
-+
-+ return 0;
-+
-+ default:
-+ return -EINVAL;
-+ }
-+}
-+
-+static struct tc654 *tc654_update_device(struct device *dev)
-+{
-+ struct tc654 *tc = dev_get_drvdata(dev);
-+
-+ mutex_lock(&tc->update_lock);
-+
-+ /*
-+ * In Chapter "1.0 Electrical Characteristics",
-+ * the "Fault Output Response Time" is specified as 2.4 seconds.
-+ */
-+ if (time_after(jiffies, tc->last_updated + 2 * HZ + (HZ * 2) / 5)
-+ || !tc->valid) {
-+ size_t i;
-+ int ret;
-+ bool alarm_triggered;
-+
-+ tc->valid = false;
-+
-+ for (i = 0; i < __NUM_TC654_FAN; i++) {
-+ ret = read_fan_rpm(tc, i);
-+ if (ret < 0)
-+ goto out;
-+
-+ tc->fan_input[i] = ret;
-+ }
-+
-+ ret = read_tc(tc, TC654_REG_STATUS);
-+ if (ret < 0)
-+ goto out;
-+
-+ alarm_triggered = !!(ret & (TC654_STATUS_F1F |
-+ TC654_STATUS_F2F | TC654_STATUS_R1CO |
-+ TC654_STATUS_R2CO | TC654_STATUS_OTF));
-+
-+ tc->alarms[TC654_ALARM_FAN1_FAULT] = !!(ret & TC654_STATUS_F1F);
-+ tc->alarms[TC654_ALARM_FAN2_FAULT] = !!(ret & TC654_STATUS_F2F);
-+ tc->alarms[TC654_ALARM_FAN1_COUNTER_OVERFLOW] =
-+ !!(ret & TC654_STATUS_R1CO);
-+ tc->alarms[TC654_ALARM_FAN2_COUNTER_OVERFLOW] =
-+ !!(ret & TC654_STATUS_R2CO);
-+ tc->alarms[TC654_ALARM_OVER_TEMPERATURE] =
-+ !!(ret & TC654_STATUS_OTF);
-+ tc->vin_status = !!(ret & TC654_STATUS_VSTAT);
-+
-+ /*
-+ * From 4.5 and 6.3
-+ *
-+ * ... "If the V_in pin is open when TC654_CTRL_DUTYC is not
-+ * selected, then V_out duty cycle will default to 39.33%.".
-+ *
-+ * and most importantly 6.5:
-+ * ... "V_in pin is open, the duty cycle will go to the default
-+ * setting of this register, which is 0010 (39.33%)."
-+ */
-+ tc->pwm_manual |= tc->vin_status &&
-+ (tc->cached_regs[TC654_REG_CONFIG] &
-+ TC654_CTRL_DUTYC);
-+
-+ if (alarm_triggered) {
-+ /*
-+ * as the name implies, this FLAG needs to be
-+ * set in order to clear the FAN Fault error.
-+ */
-+ ret = mod_config(tc, TC654_CTRL_FFCLR, 0);
-+ if (ret < 0)
-+ goto out;
-+ }
-+
-+ tc->last_updated = jiffies;
-+ tc->valid = true;
-+ }
-+
-+out:
-+ mutex_unlock(&tc->update_lock);
-+ return tc;
-+}
-+
-+static u8 get_fan_pulse(struct tc654 *tc, enum TC654_FAN fan)
-+{
-+ u8 fan_pulse_mask = fan == TC654_FAN1 ?
-+ TC654_CTRL_F1PPR_M : TC654_CTRL_F2PPR_M;
-+ u8 fan_pulse_shift = fan == TC654_FAN1 ?
-+ TC654_CTRL_F1PPR_S : TC654_CTRL_F2PPR_S;
-+
-+ return 1 << ((tc->cached_regs[TC654_REG_CONFIG] & fan_pulse_mask) >>
-+ fan_pulse_shift);
-+}
-+
-+static int
-+set_fan_pulse(struct tc654 *tc, enum TC654_FAN fan, int pulses)
-+{
-+ int old_pulses;
-+ int err;
-+ u8 new_pulse_per_rotation;
-+ u8 fan_pulse_mask = fan == TC654_FAN1 ?
-+ TC654_CTRL_F1PPR_M : TC654_CTRL_F2PPR_M;
-+ u8 fan_pulse_shift = fan == TC654_FAN1 ?
-+ TC654_CTRL_F1PPR_S : TC654_CTRL_F2PPR_S;
-+
-+ switch (pulses) {
-+ case 1:
-+ new_pulse_per_rotation = 0;
-+ break;
-+ case 2:
-+ new_pulse_per_rotation = 1;
-+ break;
-+ case 4:
-+ new_pulse_per_rotation = 2;
-+ break;
-+ case 8:
-+ new_pulse_per_rotation = 3;
-+ break;
-+ default:
-+ return -EINVAL;
-+ }
-+
-+ new_pulse_per_rotation <<= fan_pulse_shift;
-+ new_pulse_per_rotation &= fan_pulse_mask;
-+
-+ old_pulses = tc->cached_regs[TC654_REG_CONFIG];
-+ old_pulses &= fan_pulse_mask;
-+
-+ if (new_pulse_per_rotation == old_pulses)
-+ return 0;
-+
-+ mutex_lock(&tc->update_lock);
-+ err = mod_config(tc, new_pulse_per_rotation,
-+ old_pulses & (~new_pulse_per_rotation));
-+ mutex_unlock(&tc->update_lock);
-+
-+ /* invalidate RPM data to force re-read from hardware */
-+ tc->valid = false;
-+
-+ return err;
-+}
-+
-+static int get_fan_speed(struct tc654 *tc)
-+{
-+ enum TC654_FAN_MODE mode;
-+ size_t i;
-+
-+ mode = get_fan_mode(tc);
-+ for (i = 0; i < ARRAY_SIZE(pwm_table); i++) {
-+ if (mode == pwm_table[i].mode)
-+ return pwm_table[i].min;
-+ }
-+
-+ return -EINVAL;
-+}
-+
-+static int set_fan_speed(struct tc654 *tc, int new_value)
-+{
-+ int result;
-+ size_t i;
-+
-+ if (new_value > pwm_table[ARRAY_SIZE(pwm_table) - 1].min ||
-+ new_value < pwm_table[0].min)
-+ return -EINVAL;
-+
-+ for (i = 0; i < ARRAY_SIZE(pwm_table); i++) {
-+ /* exact match */
-+ if (pwm_table[i].min == new_value)
-+ break;
-+
-+ /* a little bit too big - go with the previous entry */
-+ if (pwm_table[i].min > new_value) {
-+ --i;
-+ break;
-+ }
-+ }
-+
-+ mutex_lock(&tc->update_lock);
-+ result = write_fan_mode(tc, pwm_table[i].mode);
-+ mutex_unlock(&tc->update_lock);
-+ if (result < 0)
-+ return result;
-+
-+ return 0;
-+}
-+
-+/* sysfs */
-+
-+static ssize_t
-+show_fan_input(struct device *dev, struct device_attribute *da, char *buf)
-+{
-+ struct tc654 *tc = tc654_update_device(dev);
-+ int nr = to_sensor_dev_attr(da)->index;
-+
-+ return sprintf(buf, "%d\n", tc->fan_input[nr]);
-+}
-+
-+static ssize_t
-+show_fan_min(struct device *dev, struct device_attribute *da, char *buf)
-+{
-+ struct tc654 *tc = dev_get_drvdata(dev);
-+ int nr = to_sensor_dev_attr(da)->index;
-+
-+ return sprintf(buf, "%d\n", read_fan_fault_thresh(tc, nr));
-+}
-+
-+static ssize_t
-+show_fan_min_alarm(struct device *dev, struct device_attribute *da, char *buf)
-+{
-+ struct tc654 *tc = tc654_update_device(dev);
-+ int nr = to_sensor_dev_attr(da)->index;
-+
-+ return sprintf(buf, "%d\n", nr == TC654_FAN1 ?
-+ tc->alarms[TC654_ALARM_FAN1_FAULT] :
-+ tc->alarms[TC654_ALARM_FAN2_FAULT]);
-+}
-+
-+static ssize_t
-+show_fan_max_alarm(struct device *dev, struct device_attribute *da, char *buf)
-+{
-+ struct tc654 *tc = tc654_update_device(dev);
-+ int nr = to_sensor_dev_attr(da)->index;
-+
-+ return sprintf(buf, "%d\n", nr == TC654_FAN1 ?
-+ tc->alarms[TC654_ALARM_FAN1_COUNTER_OVERFLOW] :
-+ tc->alarms[TC654_ALARM_FAN2_COUNTER_OVERFLOW]);
-+}
-+
-+static ssize_t
-+set_fan_min(struct device *dev, struct device_attribute *da,
-+ const char *buf, size_t count)
-+{
-+ struct tc654 *tc = dev_get_drvdata(dev);
-+ long new_min;
-+ int nr = to_sensor_dev_attr(da)->index;
-+ int old_min = read_fan_fault_thresh(tc, nr);
-+ int status = kstrtol(buf, 10, &new_min);
-+
-+ if (status < 0)
-+ return status;
-+
-+ new_min = (new_min / 50) * 50;
-+ if (new_min == old_min) /* No change */
-+ return count;
-+
-+ if (new_min < 0 || new_min > 12750)
-+ return -EINVAL;
-+
-+ mutex_lock(&tc->update_lock);
-+ status = write_fan_fault_thresh(tc, nr, new_min);
-+ mutex_unlock(&tc->update_lock);
-+ return count;
-+}
-+
-+static ssize_t
-+show_fan_max(struct device *dev, struct device_attribute *da, char *buf)
-+{
-+ struct tc654 *tc = dev_get_drvdata(dev);
-+ int max_rpm = tc->cached_regs[TC654_REG_CONFIG] & TC654_CTRL_RES ?
-+ (((1 << 9) - 1) * 25) /* ((2**9) - 1) * 25 RPM */:
-+ (((1 << 8) - 1) * 50) /* ((2**8) - 1) * 50 RPM */;
-+
-+ return sprintf(buf, "%d\n", max_rpm);
-+}
-+
-+static ssize_t
-+show_fan_fault(struct device *dev, struct device_attribute *da, char *buf)
-+{
-+ struct tc654 *tc = tc654_update_device(dev);
-+ int nr = to_sensor_dev_attr(da)->index;
-+ u8 fan_fault_mask = nr == TC654_FAN1 ?
-+ TC654_STATUS_F1F : TC654_STATUS_F2F;
-+
-+ return sprintf(buf, "%d\n",
-+ !!(tc->cached_regs[TC654_REG_STATUS] & fan_fault_mask));
-+}
-+
-+static ssize_t
-+show_fan_pulses(struct device *dev, struct device_attribute *da, char *buf)
-+{
-+ struct tc654 *tc = dev_get_drvdata(dev);
-+ int nr = to_sensor_dev_attr(da)->index;
-+
-+ return sprintf(buf, "%d\n", get_fan_pulse(tc, nr));
-+}
-+
-+static ssize_t
-+set_fan_pulses(struct device *dev, struct device_attribute *da,
-+ const char *buf, size_t count)
-+{
-+ struct tc654 *tc = dev_get_drvdata(dev);
-+ long new_pulse;
-+ int nr = to_sensor_dev_attr(da)->index;
-+ int status = kstrtol(buf, 10, &new_pulse);
-+
-+ if (status < 0)
-+ return status;
-+
-+ status = set_fan_pulse(tc, nr, new_pulse);
-+ if (status < 0)
-+ return status;
-+
-+ return count;
-+}
-+
-+static ssize_t
-+show_pwm_enable(struct device *dev, struct device_attribute *da, char *buf)
-+{
-+ struct tc654 *tc = tc654_update_device(dev);
-+ int pwm_enabled;
-+
-+ if ((tc->cached_regs[TC654_REG_CONFIG] & TC654_CTRL_SDM) &&
-+ !tc->pwm_manual) {
-+ pwm_enabled = 0; /* full off */
-+ } else {
-+ if (tc->valid && tc->vin_status == 0)
-+ pwm_enabled = 2; /* automatic fan speed control */
-+
-+ pwm_enabled = 1; /* PWM Mode */
-+ }
-+
-+ return sprintf(buf, "%d\n", pwm_enabled);
-+}
-+
-+static ssize_t
-+set_pwm_enable(struct device *dev, struct device_attribute *da,
-+ const char *buf, size_t count)
-+{
-+ struct tc654 *tc = dev_get_drvdata(dev);
-+ long new_value;
-+
-+ int result = kstrtol(buf, 10, &new_value);
-+
-+ if (result < 0)
-+ return result;
-+
-+ mutex_lock(&tc->update_lock);
-+ switch (new_value) {
-+ case 0: /* no fan control (i.e. is OFF) */
-+ result = write_fan_mode(tc, TC654_PWM_OFF);
-+ tc->pwm_manual = false;
-+ break;
-+
-+ case 1: /* manual fan control enabled (using pwm) */
-+ result = write_fan_mode(tc, TC654_PWM_10000);
-+ break;
-+
-+ case 2: /* automatic fan speed control enabled */
-+ result = write_fan_mode(tc, TC654_PWM_VIN);
-+ break;
-+
-+ default:
-+ result = -EINVAL;
-+ }
-+
-+ mutex_unlock(&tc->update_lock);
-+ return result < 0 ? result : count;
-+}
-+
-+static ssize_t
-+show_pwm(struct device *dev, struct device_attribute *da, char *buf)
-+{
-+ struct tc654 *tc = tc654_update_device(dev);
-+ int ret;
-+
-+ ret = get_fan_speed(tc);
-+ if (ret < 0)
-+ return ret;
-+
-+ return sprintf(buf, "%d\n", ret);
-+}
-+
-+static ssize_t
-+set_pwm(struct device *dev, struct device_attribute *da,
-+ const char *buf, size_t count)
-+{
-+ struct tc654 *tc = dev_get_drvdata(dev);
-+ long new_value = -1;
-+ int result = kstrtol(buf, 10, &new_value);
-+
-+ if (result < 0)
-+ return result;
-+
-+ if (new_value < 0 || new_value > INT_MAX)
-+ return -EINVAL;
-+
-+ if (!tc->pwm_manual)
-+ return -EINVAL;
-+
-+ result = set_fan_speed(tc, new_value);
-+ if (result < 0)
-+ return result;
-+
-+ return count;
-+}
-+
-+static ssize_t
-+show_temp_alarm_otf(struct device *dev, struct device_attribute *da, char *buf)
-+{
-+ struct tc654 *tc = tc654_update_device(dev);
-+
-+ return sprintf(buf, "%d\n", tc->alarms[TC654_ALARM_OVER_TEMPERATURE]);
-+}
-+
-+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input,
-+ NULL, TC654_FAN1);
-+static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR, show_fan_min,
-+ set_fan_min, TC654_FAN1);
-+static SENSOR_DEVICE_ATTR(fan1_min_alarm, S_IRUGO, show_fan_min_alarm,
-+ NULL, TC654_FAN1);
-+static SENSOR_DEVICE_ATTR(fan1_max_alarm, S_IRUGO, show_fan_max_alarm,
-+ NULL, TC654_FAN1);
-+static SENSOR_DEVICE_ATTR(fan1_max, S_IRUGO, show_fan_max, NULL, TC654_FAN1);
-+static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_fan_fault,
-+ NULL, TC654_FAN1);
-+static SENSOR_DEVICE_ATTR(fan1_pulses, S_IRUGO | S_IWUSR, show_fan_pulses,
-+ set_fan_pulses, TC654_FAN1);
-+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input,
-+ NULL, TC654_FAN2);
-+static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR, show_fan_min,
-+ set_fan_min, TC654_FAN2);
-+static SENSOR_DEVICE_ATTR(fan2_max, S_IRUGO, show_fan_max,
-+ NULL, TC654_FAN2);
-+static SENSOR_DEVICE_ATTR(fan2_min_alarm, S_IRUGO, show_fan_min_alarm,
-+ NULL, TC654_FAN2);
-+static SENSOR_DEVICE_ATTR(fan2_max_alarm, S_IRUGO, show_fan_max_alarm,
-+ NULL, TC654_FAN2);
-+static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_fan_fault,
-+ NULL, TC654_FAN2);
-+static SENSOR_DEVICE_ATTR(fan2_pulses, S_IRUGO | S_IWUSR, show_fan_pulses,
-+ set_fan_pulses, TC654_FAN2);
-+
-+static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
-+ set_pwm_enable);
-+static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm);
-+
-+static DEVICE_ATTR(temp1_emergency_alarm, S_IRUGO, show_temp_alarm_otf, NULL);
-+
-+/* sensors present on all models */
-+static struct attribute *tc654_attrs[] = {
-+ &sensor_dev_attr_fan1_input.dev_attr.attr,
-+ &sensor_dev_attr_fan1_min.dev_attr.attr,
-+ &sensor_dev_attr_fan1_max.dev_attr.attr,
-+ &sensor_dev_attr_fan1_min_alarm.dev_attr.attr,
-+ &sensor_dev_attr_fan1_max_alarm.dev_attr.attr,
-+ &sensor_dev_attr_fan1_fault.dev_attr.attr,
-+ &sensor_dev_attr_fan1_pulses.dev_attr.attr,
-+ &sensor_dev_attr_fan2_input.dev_attr.attr,
-+ &sensor_dev_attr_fan2_min.dev_attr.attr,
-+ &sensor_dev_attr_fan2_max.dev_attr.attr,
-+ &sensor_dev_attr_fan2_min_alarm.dev_attr.attr,
-+ &sensor_dev_attr_fan2_max_alarm.dev_attr.attr,
-+ &sensor_dev_attr_fan2_fault.dev_attr.attr,
-+ &sensor_dev_attr_fan2_pulses.dev_attr.attr,
-+
-+ &dev_attr_pwm1_enable.attr,
-+ &dev_attr_pwm1.attr,
-+
-+ &dev_attr_temp1_emergency_alarm.attr,
-+ NULL
-+};
-+
-+ATTRIBUTE_GROUPS(tc654);
-+
-+/* cooling device */
-+
-+static int tc654_get_max_state(struct thermal_cooling_device *cdev,
-+ unsigned long *state)
-+{
-+ *state = 255;
-+ return 0;
-+}
-+
-+static int tc654_get_cur_state(struct thermal_cooling_device *cdev,
-+ unsigned long *state)
-+{
-+ struct tc654 *tc = cdev->devdata;
-+ int ret;
-+
-+ if (!tc)
-+ return -EINVAL;
-+
-+ ret = get_fan_speed(tc);
-+ if (ret < 0)
-+ return ret;
-+
-+ *state = ret;
-+ return 0;
-+}
-+
-+static int tc654_set_cur_state(struct thermal_cooling_device *cdev,
-+ unsigned long state)
-+{
-+ struct tc654 *tc = cdev->devdata;
-+
-+ if (!tc)
-+ return -EINVAL;
-+
-+ if (state > INT_MAX)
-+ return -EINVAL;
-+
-+ return set_fan_speed(tc, state);
-+}
-+
-+static const struct thermal_cooling_device_ops tc654_fan_cool_ops = {
-+ .get_max_state = tc654_get_max_state,
-+ .get_cur_state = tc654_get_cur_state,
-+ .set_cur_state = tc654_set_cur_state,
-+};
-+
-+
-+/* hardware probe and detection */
-+
-+static int
-+tc654_probe(struct i2c_client *client, const struct i2c_device_id *id)
-+{
-+ struct tc654 *tc;
-+ struct device *hwmon_dev;
-+ int ret, i;
-+
-+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-+ return -EIO;
-+
-+ tc = devm_kzalloc(&client->dev, sizeof(*tc), GFP_KERNEL);
-+ if (!tc)
-+ return -ENOMEM;
-+
-+ i2c_set_clientdata(client, tc);
-+ tc->client = client;
-+ mutex_init(&tc->update_lock);
-+
-+ /* cache all 8 registers */
-+ for (i = 0; i < __TC654_REG_NUM; i++) {
-+ ret = read_tc(tc, i);
-+ if (ret < 0)
-+ return ret;
-+ }
-+
-+ /* sysfs hooks */
-+ hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
-+ client->name, tc,
-+ tc654_groups);
-+ if (IS_ERR(hwmon_dev))
-+ return PTR_ERR(hwmon_dev);
-+
-+#if IS_ENABLED(CONFIG_OF)
-+ /* Optional cooling device register for Device tree platforms */
-+ tc->cdev = thermal_of_cooling_device_register(client->dev.of_node,
-+ "tc654", tc,
-+ &tc654_fan_cool_ops);
-+#else /* CONFIG_OF */
-+ /* Optional cooling device register for non Device tree platforms */
-+ tc->cdev = thermal_cooling_device_register("tc654", tc,
-+ &tc654_fan_cool_ops);
-+#endif /* CONFIG_OF */
-+
-+ dev_info(&client->dev, "%s: sensor '%s'\n",
-+ dev_name(hwmon_dev), client->name);
-+
-+ return 0;
-+}
-+
-+static const struct i2c_device_id tc654_ids[] = {
-+ { "tc654", 0, },
-+ { }
-+};
-+MODULE_DEVICE_TABLE(i2c, tc654_ids);
-+
-+/* Return 0 if detection is successful, -ENODEV otherwise */
-+static int
-+tc654_detect(struct i2c_client *new_client, struct i2c_board_info *info)
-+{
-+ struct i2c_adapter *adapter = new_client->adapter;
-+ int manufacturer, product;
-+
-+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-+ return -ENODEV;
-+
-+ manufacturer = i2c_smbus_read_byte_data(new_client, TC654_REG_MFR_ID);
-+ if (manufacturer != TC654_MFR_ID_MICROCHIP)
-+ return -ENODEV;
-+
-+ product = i2c_smbus_read_byte_data(new_client, TC654_REG_VER_ID);
-+ if (!((product == TC654_VER_ID) || (product == TC655_VER_ID)))
-+ return -ENODEV;
-+
-+ strlcpy(info->type, "tc654", I2C_NAME_SIZE);
-+ return 0;
-+}
-+
-+static struct i2c_driver tc654_driver = {
-+ .class = I2C_CLASS_HWMON,
-+ .driver = {
-+ .name = "tc654",
-+ },
-+ .probe = tc654_probe,
-+ .id_table = tc654_ids,
-+ .detect = tc654_detect,
-+ .address_list = normal_i2c,
-+};
-+
-+module_i2c_driver(tc654_driver);
-+
-+MODULE_AUTHOR("Christian Lamparter <chunkeey@gmail.com>");
-+MODULE_DESCRIPTION("Microchip TC654/TC655 hwmon driver");
-+MODULE_LICENSE("GPL");
projects / openwrt / staging / adrian.git / commitdiff