From: Rafał Miłecki Date: Thu, 28 Mar 2024 11:25:54 +0000 (+0100) Subject: bcm4008: prepare to work on kernel 6.6 X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c3dc52fb3ce29c4093b83e950b1f8ee579187216;p=openwrt%2Fstaging%2Fneocturne.git bcm4008: prepare to work on kernel 6.6 Don't add KERNEL_TESTING_PATCHVER yet as there are some issues with it. On TP-Link Archer C2300 serial console seems to stop working after preinit: > Press the [f] key and hit [enter] to enter failsafe mode > Press the [1], [2], [3] or [4] key and hit [enter] to select the de� On Netgear R8000P XHCI causes external abort: [ 2.139586] Internal error: synchronous external abort: 0000000096000210 [#1] SMP [ 2.147212] Modules linked in: xhci_plat_hcd(+) xhci_hcd ohci_platform ohci_hcd fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd gpio_button_hotplug(O) usbcore nls_base usb_common crc32c_generic [ 2.164774] CPU: 0 PID: 358 Comm: kmodloader Tainted: G O 6.6.22 #0 [ 2.172658] Hardware name: Netgear R8000P (DT) [ 2.177229] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 2.184395] pc : xhci_gen_setup+0x80/0x34c [xhci_hcd] [ 2.189591] lr : xhci_gen_setup+0x74/0x34c [xhci_hcd] [ 2.194788] sp : ffffffc0815d37b0 [ 2.198194] x29: ffffffc0815d37b0 x28: ffffff8002000000 x27: ffffff8001172d88 [ 2.205540] x26: ffffff8002000000 x25: 0000000000000000 x24: ffffffc078b603c0 [ 2.212888] x23: ffffffc078b2a008 x22: ffffff8001172c10 x21: ffffff8002000000 [ 2.220235] x20: ffffff8002000000 x19: ffffff8002000250 x18: 0000000000000000 [ 2.227582] x17: 626d756e20737562 x16: 2064656e67697373 x15: ffffffffffffffff [ 2.234929] x14: ffffff80019e9915 x13: ffffff80019e9913 x12: 00000000ffffffea [ 2.242276] x11: 00000000ffffefff x10: 0000000000000062 x9 : 00000000ffffffd0 [ 2.246760] bcm63138_nand ff801800.nand-controller: timeout waiting for command 0x4 [ 2.249623] x8 : 0000000000000073 x7 : ffffffc0815d37c0 x6 : 0000000000000075 [ 2.257513] bcm63138_nand ff801800.nand-controller: intfc status c00000e0 [ 2.264855] x5 : 0000000000000081 x4 : 0000000000000000 x3 : ffffff8001b61800 [ 2.279193] x2 : ffffffc080b5d000 x1 : ffffff80020003a8 x0 : ffffff8002000398 [ 2.286540] Call trace: [ 2.289048] xhci_gen_setup+0x80/0x34c [xhci_hcd] Signed-off-by: Rafał Miłecki --- diff --git a/target/linux/bcm4908/config-6.6 b/target/linux/bcm4908/config-6.6 new file mode 100644 index 0000000000..086d387bc7 --- /dev/null +++ b/target/linux/bcm4908/config-6.6 @@ -0,0 +1,245 @@ +CONFIG_64BIT=y +CONFIG_ARCH_BCM=y +CONFIG_ARCH_BCMBCA=y +CONFIG_ARCH_DMA_ADDR_T_64BIT=y +CONFIG_ARCH_KEEP_MEMBLOCK=y +CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y +CONFIG_ARCH_MMAP_RND_BITS=18 +CONFIG_ARCH_MMAP_RND_BITS_MAX=24 +CONFIG_ARCH_MMAP_RND_BITS_MIN=18 +CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11 +CONFIG_ARCH_PROC_KCORE_TEXT=y +CONFIG_ARCH_SPARSEMEM_ENABLE=y +CONFIG_ARCH_STACKWALK=y +CONFIG_ARCH_SUSPEND_POSSIBLE=y +CONFIG_ARCH_WANTS_NO_INSTR=y +CONFIG_ARM64=y +CONFIG_ARM64_4K_PAGES=y +CONFIG_ARM64_CRYPTO=y +CONFIG_ARM64_LD_HAS_FIX_ERRATUM_843419=y +CONFIG_ARM64_PAGE_SHIFT=12 +CONFIG_ARM64_PA_BITS=48 +CONFIG_ARM64_PA_BITS_48=y +CONFIG_ARM64_PTR_AUTH=y +CONFIG_ARM64_PTR_AUTH_KERNEL=y +CONFIG_ARM64_SVE=y +CONFIG_ARM64_TAGGED_ADDR_ABI=y +CONFIG_ARM64_VA_BITS=39 +CONFIG_ARM64_VA_BITS_39=y +CONFIG_ARM_AMBA=y +CONFIG_ARM_ARCH_TIMER=y +CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y +CONFIG_ARM_GIC=y +CONFIG_ARM_GIC_V3=y +CONFIG_ARM_GIC_V3_ITS=y +CONFIG_ARM_PSCI_FW=y +CONFIG_AUDIT_ARCH_COMPAT_GENERIC=y +CONFIG_B53=y +CONFIG_BCM4908_ENET=y +CONFIG_BCM7038_WDT=y +CONFIG_BCM7XXX_PHY=y +CONFIG_BCM_NET_PHYLIB=y +CONFIG_BCM_PMB=y +# CONFIG_BLK_DEV_INITRD is not set +CONFIG_BLK_PM=y +CONFIG_CC_HAVE_STACKPROTECTOR_SYSREG=y +CONFIG_CLK_BCM_63XX=y +CONFIG_CLONE_BACKWARDS=y +CONFIG_CMDLINE="earlycon=bcm63xx_uart,0xff800640 console=ttyS0,115200" +CONFIG_CMDLINE_FROM_BOOTLOADER=y +CONFIG_COMMON_CLK=y +# CONFIG_COMPAT_32BIT_TIME is not set +CONFIG_CPU_LITTLE_ENDIAN=y +CONFIG_CPU_RMAP=y +CONFIG_CRC16=y +CONFIG_CRYPTO_AES_ARM64=y +CONFIG_CRYPTO_AES_ARM64_CE=y +CONFIG_CRYPTO_AES_ARM64_CE_BLK=y +CONFIG_CRYPTO_AES_ARM64_CE_CCM=y +CONFIG_CRYPTO_CRYPTD=y +CONFIG_CRYPTO_DEFLATE=y +CONFIG_CRYPTO_GHASH_ARM64_CE=y +CONFIG_CRYPTO_HASH_INFO=y +CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y +CONFIG_CRYPTO_LZO=y +CONFIG_CRYPTO_RNG2=y +CONFIG_CRYPTO_SIMD=y +CONFIG_CRYPTO_ZSTD=y +CONFIG_DCACHE_WORD_ACCESS=y +CONFIG_DMA_DIRECT_REMAP=y +CONFIG_DMA_REMAP=y +CONFIG_DTC=y +CONFIG_EDAC_SUPPORT=y +CONFIG_FIXED_PHY=y +CONFIG_FIX_EARLYCON_MEM=y +CONFIG_FRAME_POINTER=y +CONFIG_FWNODE_MDIO=y +CONFIG_FW_LOADER_PAGED_BUF=y +CONFIG_GENERIC_ALLOCATOR=y +CONFIG_GENERIC_ARCH_TOPOLOGY=y +CONFIG_GENERIC_BUG=y +CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y +CONFIG_GENERIC_CLOCKEVENTS=y +CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y +CONFIG_GENERIC_CPU_AUTOPROBE=y +CONFIG_GENERIC_CPU_VULNERABILITIES=y +CONFIG_GENERIC_CSUM=y +CONFIG_GENERIC_EARLY_IOREMAP=y +CONFIG_GENERIC_FIND_FIRST_BIT=y +CONFIG_GENERIC_GETTIMEOFDAY=y +CONFIG_GENERIC_IDLE_POLL_SETUP=y +CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y +CONFIG_GENERIC_IRQ_SHOW=y +CONFIG_GENERIC_IRQ_SHOW_LEVEL=y +CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED=y +CONFIG_GENERIC_MSI_IRQ=y +CONFIG_GENERIC_MSI_IRQ_DOMAIN=y +CONFIG_GENERIC_PCI_IOMAP=y +CONFIG_GENERIC_PHY=y +CONFIG_GENERIC_PINCONF=y +CONFIG_GENERIC_PINCTRL_GROUPS=y +CONFIG_GENERIC_PINMUX_FUNCTIONS=y +CONFIG_GENERIC_SCHED_CLOCK=y +CONFIG_GENERIC_SMP_IDLE_THREAD=y +CONFIG_GENERIC_STRNCPY_FROM_USER=y +CONFIG_GENERIC_STRNLEN_USER=y +CONFIG_GENERIC_TIME_VSYSCALL=y +CONFIG_GPIO_CDEV=y +CONFIG_GPIO_GENERIC=y +CONFIG_GPIO_GENERIC_PLATFORM=y +CONFIG_GRO_CELLS=y +CONFIG_HANDLE_DOMAIN_IRQ=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_HAS_DMA=y +CONFIG_HAS_IOMEM=y +CONFIG_HZ_PERIODIC=y +CONFIG_I2C=y +CONFIG_I2C_BOARDINFO=y +CONFIG_I2C_BRCMSTB=y +CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000 +CONFIG_IRQCHIP=y +CONFIG_IRQ_DOMAIN=y +CONFIG_IRQ_DOMAIN_HIERARCHY=y +CONFIG_IRQ_FORCED_THREADING=y +CONFIG_IRQ_WORK=y +CONFIG_LEDS_BCM63138=y +CONFIG_LEDS_GPIO=y +CONFIG_LIBFDT=y +CONFIG_LOCK_DEBUGGING_SUPPORT=y +CONFIG_LOCK_SPIN_ON_OWNER=y +CONFIG_LZO_COMPRESS=y +CONFIG_LZO_DECOMPRESS=y +CONFIG_MDIO_BCM_UNIMAC=y +CONFIG_MDIO_BUS=y +CONFIG_MDIO_DEVICE=y +CONFIG_MDIO_DEVRES=y +CONFIG_MEMFD_CREATE=y +CONFIG_MFD_SYSCON=y +CONFIG_MIGRATION=y +# CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY is not set +CONFIG_MODULES_USE_ELF_RELA=y +CONFIG_MTD_BRCM_U_BOOT=y +CONFIG_MTD_CMDLINE_PARTS=y +CONFIG_MTD_NAND_BRCMNAND=y +CONFIG_MTD_NAND_BRCMNAND_BCMBCA=y +CONFIG_MTD_NAND_CORE=y +CONFIG_MTD_NAND_ECC=y +CONFIG_MTD_NAND_ECC_SW_HAMMING=y +CONFIG_MTD_OF_PARTS_BCM4908=y +# CONFIG_MTD_OF_PARTS_LINKSYS_NS is not set +CONFIG_MTD_RAW_NAND=y +CONFIG_MTD_SPLIT_CFE_BOOTFS=y +# CONFIG_MTD_SPLIT_SQUASHFS_ROOT is not set +CONFIG_MTD_UBI=y +CONFIG_MTD_UBI_BEB_LIMIT=20 +CONFIG_MTD_UBI_BLOCK=y +CONFIG_MTD_UBI_WL_THRESHOLD=4096 +CONFIG_MUTEX_SPIN_ON_OWNER=y +CONFIG_NEED_DMA_MAP_STATE=y +CONFIG_NEED_SG_DMA_LENGTH=y +CONFIG_NET_DEVLINK=y +CONFIG_NET_DSA=y +CONFIG_NET_DSA_BCM_SF2=y +CONFIG_NET_DSA_TAG_BRCM=y +CONFIG_NET_DSA_TAG_BRCM_COMMON=y +CONFIG_NET_DSA_TAG_BRCM_LEGACY=y +CONFIG_NET_DSA_TAG_BRCM_PREPEND=y +CONFIG_NET_FLOW_LIMIT=y +CONFIG_NET_SELFTESTS=y +CONFIG_NET_SWITCHDEV=y +CONFIG_NO_IOPORT_MAP=y +CONFIG_NR_CPUS=4 +CONFIG_NVMEM=y +CONFIG_NVMEM_SYSFS=y +CONFIG_NVMEM_U_BOOT_ENV=y +CONFIG_OF=y +CONFIG_OF_ADDRESS=y +CONFIG_OF_EARLY_FLATTREE=y +CONFIG_OF_FLATTREE=y +CONFIG_OF_GPIO=y +CONFIG_OF_IRQ=y +CONFIG_OF_KOBJ=y +CONFIG_OF_MDIO=y +CONFIG_PADATA=y +CONFIG_PARTITION_PERCPU=y +CONFIG_PGTABLE_LEVELS=3 +CONFIG_PHYLIB=y +CONFIG_PHYLINK=y +CONFIG_PHYS_ADDR_T_64BIT=y +# CONFIG_PHY_BRCM_SATA is not set +CONFIG_PHY_BRCM_USB=y +CONFIG_PINCTRL=y +CONFIG_PINCTRL_BCM4908=y +# CONFIG_PINCTRL_SINGLE is not set +CONFIG_PM=y +CONFIG_PM_CLK=y +CONFIG_PM_GENERIC_DOMAINS=y +CONFIG_PM_GENERIC_DOMAINS_OF=y +CONFIG_POWER_RESET=y +CONFIG_POWER_RESET_SYSCON=y +CONFIG_POWER_SUPPLY=y +CONFIG_PTP_1588_CLOCK_OPTIONAL=y +CONFIG_QUEUED_RWLOCKS=y +CONFIG_QUEUED_SPINLOCKS=y +CONFIG_RATIONAL=y +CONFIG_REGMAP=y +CONFIG_REGMAP_MMIO=y +CONFIG_RELOCATABLE=y +CONFIG_RFS_ACCEL=y +CONFIG_RODATA_FULL_DEFAULT_ENABLED=y +CONFIG_RPS=y +CONFIG_RWSEM_SPIN_ON_OWNER=y +# CONFIG_SERIAL_8250 is not set +CONFIG_SERIAL_BCM63XX=y +CONFIG_SERIAL_BCM63XX_CONSOLE=y +CONFIG_SGL_ALLOC=y +CONFIG_SMP=y +CONFIG_SOCK_RX_QUEUE_MAPPING=y +CONFIG_SPARSEMEM=y +CONFIG_SPARSEMEM_EXTREME=y +CONFIG_SPARSEMEM_VMEMMAP=y +CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y +CONFIG_SPARSE_IRQ=y +CONFIG_SRCU=y +CONFIG_SWIOTLB=y +CONFIG_SWPHY=y +CONFIG_SYSCTL_EXCEPTION_TRACE=y +CONFIG_THREAD_INFO_IN_TASK=y +CONFIG_TICK_CPU_ACCOUNTING=y +CONFIG_TIMER_OF=y +CONFIG_TIMER_PROBE=y +CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y +CONFIG_TREE_RCU=y +CONFIG_TREE_SRCU=y +CONFIG_UBIFS_FS=y +CONFIG_UNMAP_KERNEL_AT_EL0=y +CONFIG_USB_SUPPORT=y +CONFIG_VMAP_STACK=y +CONFIG_WATCHDOG_CORE=y +CONFIG_XPS=y +CONFIG_XXHASH=y +CONFIG_ZLIB_DEFLATE=y +CONFIG_ZLIB_INFLATE=y +CONFIG_ZONE_DMA32=y +CONFIG_ZSTD_COMPRESS=y +CONFIG_ZSTD_DECOMPRESS=y diff --git a/target/linux/bcm4908/patches-6.6/130-arm64-dts-broadcom-bcmbca-bcm4908-set-brcm-wp-not-co.patch b/target/linux/bcm4908/patches-6.6/130-arm64-dts-broadcom-bcmbca-bcm4908-set-brcm-wp-not-co.patch new file mode 100644 index 0000000000..442a71fc8f --- /dev/null +++ b/target/linux/bcm4908/patches-6.6/130-arm64-dts-broadcom-bcmbca-bcm4908-set-brcm-wp-not-co.patch @@ -0,0 +1,31 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Thu, 28 Mar 2024 10:24:34 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcmbca: bcm4908: set + brcm,wp-not-connected +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Every described BCM4908 board has WP pin not connected. This caused +problems for drivers since day 0 but there was no property to describe +that properly. Projects like OpenWrt were modifying Linux driver to deal +with it. + +It's not clear if that is hardware limitation or just reference design +being copied over and over but this applies to all known / supported +BCM4908 boards. Handle it by marking WP as not connected by default. + +Fixes: 2961f69f151c ("arm64: dts: broadcom: add BCM4908 and Asus GT-AC5300 early DTS files") +Signed-off-by: Rafał Miłecki +--- + +--- a/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi +@@ -597,6 +597,7 @@ + reg-names = "nand", "nand-int-base"; + interrupts = ; + interrupt-names = "nand_ctlrdy"; ++ brcm,wp-not-connected; + status = "okay"; + + nandcs: nand@0 { diff --git a/target/linux/bcm4908/patches-6.6/300-arm64-dts-broadcom-bcmbca-bcm4908-limit-amount-of-GP.patch b/target/linux/bcm4908/patches-6.6/300-arm64-dts-broadcom-bcmbca-bcm4908-limit-amount-of-GP.patch new file mode 100644 index 0000000000..6fd7d92233 --- /dev/null +++ b/target/linux/bcm4908/patches-6.6/300-arm64-dts-broadcom-bcmbca-bcm4908-limit-amount-of-GP.patch @@ -0,0 +1,23 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Mon, 15 Feb 2021 22:01:03 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcmbca: bcm4908: limit amount of GPIOs +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Linux driver can't handle more than 64 GPIOs + +Signed-off-by: Rafał Miłecki +--- + +--- a/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi +@@ -344,7 +344,7 @@ + gpio0: gpio-controller@500 { + compatible = "brcm,bcm6345-gpio"; + reg-names = "dirout", "dat"; +- reg = <0x500 0x28>, <0x528 0x28>; ++ reg = <0x500 0x8>, <0x528 0x8>; + + #gpio-cells = <2>; + gpio-controller; diff --git a/target/linux/bcm4908/patches-6.6/301-arm64-don-t-issue-HVC-on-boot.patch b/target/linux/bcm4908/patches-6.6/301-arm64-don-t-issue-HVC-on-boot.patch new file mode 100644 index 0000000000..be1b4a0e4d --- /dev/null +++ b/target/linux/bcm4908/patches-6.6/301-arm64-don-t-issue-HVC-on-boot.patch @@ -0,0 +1,30 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Thu, 12 Aug 2021 11:52:42 +0200 +Subject: [PATCH] arm64: don't issue HVC on boot +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Broadcom's CFE loader seems to miss setting SCR_EL3.HCE which results in +generating an UNDEF and kernel panic on the first HVC. + +HVC gets issued by kernels 5.12+ while booting, by kexec and KVM. Until +someone finds a workaround we have to avoid all above. + +Workarounds: 0c93df9622d4 ("arm64: Initialise as nVHE before switching to VHE") +Signed-off-by: Rafał Miłecki +--- + arch/arm64/kernel/hyp-stub.S | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/arm64/kernel/hyp-stub.S ++++ b/arch/arm64/kernel/hyp-stub.S +@@ -252,7 +252,7 @@ SYM_FUNC_START(finalise_el2) + b.ne 1f + + mov x0, #HVC_FINALISE_EL2 +- hvc #0 ++// hvc #0 + 1: + ret + SYM_FUNC_END(finalise_el2) diff --git a/target/linux/bcm4908/patches-6.6/700-net-dsa-bcm_sf2-enable-GPHY-for-switch-probing.patch b/target/linux/bcm4908/patches-6.6/700-net-dsa-bcm_sf2-enable-GPHY-for-switch-probing.patch new file mode 100644 index 0000000000..cf089fec61 --- /dev/null +++ b/target/linux/bcm4908/patches-6.6/700-net-dsa-bcm_sf2-enable-GPHY-for-switch-probing.patch @@ -0,0 +1,46 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Mon, 15 Feb 2021 23:59:26 +0100 +Subject: [PATCH] net: dsa: bcm_sf2: enable GPHY for switch probing +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +GPHY needs to be enabled to succesfully probe & setup switch port +connected to it. Otherwise hardcoding PHY OUI would be required. + +Before: +brcm-sf2 80080000.switch lan4 (uninitialized): PHY [800c05c0.mdio--1:08] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan3 (uninitialized): PHY [800c05c0.mdio--1:09] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan2 (uninitialized): PHY [800c05c0.mdio--1:0a] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan1 (uninitialized): PHY [800c05c0.mdio--1:0b] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch wan (uninitialized): error -5 setting up PHY for tree 0, switch 0, port 7 + +After: +brcm-sf2 80080000.switch lan4 (uninitialized): PHY [800c05c0.mdio--1:08] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan3 (uninitialized): PHY [800c05c0.mdio--1:09] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan2 (uninitialized): PHY [800c05c0.mdio--1:0a] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan1 (uninitialized): PHY [800c05c0.mdio--1:0b] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch wan (uninitialized): PHY [800c05c0.mdio--1:0c] driver [Generic PHY] (irq=POLL) + +Signed-off-by: Rafał Miłecki +--- + drivers/net/dsa/bcm_sf2.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -1522,10 +1522,14 @@ static int bcm_sf2_sw_probe(struct platf + rev = reg_readl(priv, REG_PHY_REVISION); + priv->hw_params.gphy_rev = rev & PHY_REVISION_MASK; + ++ bcm_sf2_gphy_enable_set(priv->dev->ds, true); ++ + ret = b53_switch_register(dev); + if (ret) + goto out_mdio; + ++ bcm_sf2_gphy_enable_set(priv->dev->ds, false); ++ + dev_info(&pdev->dev, + "Starfighter 2 top: %x.%02x, core: %x.%02x, IRQs: %d, %d\n", + priv->hw_params.top_rev >> 8, priv->hw_params.top_rev & 0xff, diff --git a/target/linux/bcm4908/patches-6.6/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch b/target/linux/bcm4908/patches-6.6/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch new file mode 100644 index 0000000000..865eac729a --- /dev/null +++ b/target/linux/bcm4908/patches-6.6/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch @@ -0,0 +1,30 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Tue, 16 Feb 2021 00:06:35 +0100 +Subject: [PATCH] net: dsa: bcm_sf2: keep GPHY enabled on the BCM4908 + +Trying to access disabled PHY results in MDIO_READ_FAIL and: +[ 11.962886] brcm-sf2 80080000.switch wan: configuring for phy/internal link mode +[ 11.972500] 8021q: adding VLAN 0 to HW filter on device wan +[ 11.980205] ------------[ cut here ]------------ +[ 11.984885] WARNING: CPU: 0 PID: 7 at phy_error+0x10/0x58 + +Signed-off-by: Rafał Miłecki +--- + drivers/net/dsa/bcm_sf2.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -1536,6 +1536,12 @@ static int bcm_sf2_sw_probe(struct platf + priv->hw_params.core_rev >> 8, priv->hw_params.core_rev & 0xff, + priv->irq0, priv->irq1); + ++ /* BCM4908 has 5 GPHYs which means bcm_sf2_port_setup() will not enable ++ * GPHY when needed. Leave it enabled here. ++ */ ++ if (priv->type == BCM4908_DEVICE_ID) ++ bcm_sf2_gphy_enable_set(priv->dev->ds, true); ++ + return 0; + + out_mdio: