December 2021 - U-Boot

iMX8MM USB support?
by Tim Harvey 09 Mar '22

09 Mar '22

Peng, It looks like IMX8MM USB support hasn't made it upstream yet. Is this something your working on? I'm interested in booting an IMX8MM via SDP. Best Regards, Tim

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[PATCH v2 0/6] Exception handling in HYP mode on ARMv7-A
by Jim Posen 02 Mar '22

02 Mar '22

Currently, when U-Boot is running in hypervisor mode on ARMv7-A CPUs with virtualization extensions, the exception handling does not work. A couple things need to change which are detailed in my earlier message to the u-boot mailing list with the subject "Exception handling in HYP mode on ARMv7-A". I have verified that this patch series works on the ODroid XU4 and the Raspberry Pi 3B in Aarch32 mode when running in hypervisor mode. One simple way to verify is by running the miscellaneous "exception" command (CMD_EXCEPTION). This can be tested with QEMU now. Configure with qemu_arm_defconfig and add CMD_EXCEPTION and QEMU_ARM_32BIT_HAS_VIRT. Then run qemu-system-arm \ -machine virt,virtualization \ -nographic -serial mon:stdio \ -bios u-boot.bin U-Boot 2021.10-... ... => exception undefined Changes in v2: - Fix CP15 register written to in start.S - Check processor mode as HVBAR register is only accessible in HYP mode - Add QEMU config option for ARM32 with virtualization extensions Jim Posen (6): Compile for ARMv7-A with virtualization extensions Hypervisor mode interrupt vector table Set HVBAR register correctly Remove dead code Fix PC adjustment logic in exception handlers Config to target QEMU virt machine with virtualization arch/arm/Makefile | 4 + arch/arm/cpu/armv7/start.S | 8 ++ arch/arm/include/asm/u-boot-arm.h | 14 ++-- arch/arm/lib/interrupts.c | 26 +++--- arch/arm/lib/relocate.S | 13 +++ arch/arm/lib/vectors.S | 129 +++++++++++++++++++++++------- arch/arm/mach-bcm283x/Kconfig | 3 + arch/arm/mach-exynos/Kconfig | 1 + arch/arm/mach-qemu/Kconfig | 6 ++ 9 files changed, 153 insertions(+), 51 deletions(-) -- 2.25.1

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[PATCH 0/5] board: sl28: add basic PSCI implementation
by Michael Walle 28 Feb '22

28 Feb '22

Add PSCI support to reset and power-off the board. Because this board can be used without TF-A, supply a (mandatory) PSCI implementation. The armv8 u-boot part already contains most bits for the implementation, it is just, that it isn't compatible with the layerscape parts. Thus, we first need to clean that up and then we can add our three little functions for the PSCI support. Michael Walle (5): armv8: include psci_update_dt() unconditionally armv8: layerscape: get rid of smc_call() armv8: psci: skip setup code if we are not EL3 armv8: psci: add ARMV8_PSCI_RELOCATE Kconfig option board: sl28: add basic PSCI implementation arch/arm/cpu/armv8/Kconfig | 30 +++++++++----- arch/arm/cpu/armv8/cpu-dt.c | 7 ++-- arch/arm/cpu/armv8/cpu.c | 3 ++ arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 3 ++ arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 49 +++++++++-------------- arch/arm/cpu/armv8/fsl-layerscape/mp.c | 11 ++--- arch/arm/cpu/armv8/sec_firmware.c | 19 ++++----- board/freescale/ls1043ardb/Kconfig | 8 ---- board/kontron/sl28/Makefile | 2 + board/kontron/sl28/psci.c | 42 +++++++++++++++++++ 10 files changed, 103 insertions(+), 71 deletions(-) create mode 100644 board/kontron/sl28/psci.c -- 2.30.2

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IMX8MM 4GiB boundary issue
by Tim Harvey 28 Feb '22

28 Feb '22

Greetings, I'm working with an IMX8MM board that has 4GiB of DRAM. I've found that in this configuration the MMC driver and FEC network driver appear to have some issues with crossing the 4GiB address space. If I tell U-Boot I have 3GiB everything is ok, but when I set it to 4GiB I see the following: MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2 Loading Environment from MMC... Error found for upper 32 bits Error found for upper 32 bits Error found for upper 32 bits *** Warning - No block device, using default environment In: serial Out: serial Err: serial Net: DP83867 Warning: ethernet@30be0000 (eth0) using random MAC address - ea:22:3a:4d:8f:d5 eth0: ethernet@30be0000 [PRIME] Hit any key to stop autoboot: 0 On the FEC ethernet side I don't see any errors reported but ping's fail with 4GiB DRAM. I suspect drivers have 32bit addressing issues as the base of mem for IMX8MM is 1GiB so anything over 3GiB of DRAM runs you over the 32bit boundary. Anyone run into this yet? Marek, I noticed you are the maintainer for the technexion pico-imx8mq which has support for 1, 2, 3, and 4 GiB DRAM. Did you encounter such issues on the 4GiB variant? Best Regards, Tim

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[PATCH] freescale: imx8mm_evk: Use IS_ENABLED instead of #ifdef
by Tommaso Merciai 24 Feb '22

24 Feb '22

Use IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG) to make the code more readable and fix checkpatch.pl warning Signed-off-by: Tommaso Merciai <tomm.merciai(a)gmail.com> --- board/freescale/imx8mm_evk/imx8mm_evk.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/board/freescale/imx8mm_evk/imx8mm_evk.c b/board/freescale/imx8mm_evk/imx8mm_evk.c index ab55135a97..e0975fcda7 100644 --- a/board/freescale/imx8mm_evk/imx8mm_evk.c +++ b/board/freescale/imx8mm_evk/imx8mm_evk.c @@ -60,9 +60,10 @@ int board_mmc_get_env_dev(int devno) int board_late_init(void) { -#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG - env_set("board_name", "EVK"); - env_set("board_rev", "iMX8MM"); -#endif + if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)) { + env_set("board_name", "EVK"); + env_set("board_rev", "iMX8MM"); + } + return 0; } -- 2.25.1

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[PATCH 1/2] cmd: fuse: add a fuse comparison function
by Angus Ainslie 19 Feb '22

19 Feb '22

Compare a hexval to the fuse value and return pass or fail. Signed-off-by: Angus Ainslie <angus(a)akkea.ca> --- cmd/fuse.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/cmd/fuse.c b/cmd/fuse.c index e001619d172..78b1065d99e 100644 --- a/cmd/fuse.c +++ b/cmd/fuse.c @@ -45,7 +45,7 @@ static int do_fuse(struct cmd_tbl *cmdtp, int flag, int argc, { const char *op = argc >= 2 ? argv[1] : NULL; int confirmed = argc >= 3 && !strcmp(argv[2], "-y"); - u32 bank, word, cnt, val; + u32 bank, word, cnt, val, cmp; int ret, i; argc -= 2 + confirmed; @@ -73,6 +73,24 @@ static int do_fuse(struct cmd_tbl *cmdtp, int flag, int argc, printf(" %.8x", val); } putc('\n'); + } else if (!strcmp(op, "cmp")) { + if (argc != 3 || strtou32(argv[2], 0, &cmp)) + return CMD_RET_USAGE; + + printf("Comparing bank %u:\n", bank); + printf("\nWord 0x%.8x:", word); + printf("\nValue 0x%.8x:", cmp); + + ret = fuse_read(bank, word, &val); + if (ret) + goto err; + + printf("0x%.8x\n", val); + if (val != cmp) { + printf("failed\n"); + return CMD_RET_FAILURE; + } + printf("passed\n"); } else if (!strcmp(op, "sense")) { if (argc == 2) cnt = 1; @@ -137,6 +155,8 @@ U_BOOT_CMD( "Fuse sub-system", "read <bank> <word> [<cnt>] - read 1 or 'cnt' fuse words,\n" " starting at 'word'\n" + "fuse cmp <bank> <word> <hexval> - compare 'hexval' to fuse\n" + " at 'word'\n" "fuse sense <bank> <word> [<cnt>] - sense 1 or 'cnt' fuse words,\n" " starting at 'word'\n" "fuse prog [-y] <bank> <word> <hexval> [<hexval>...] - program 1 or\n" -- 2.25.1

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[PATCH v2] Enable Fastboot(UUU) for O4-iMX6ULL-NANO boards
by Oleh Kravchenko 19 Feb '22

19 Feb '22

Make O4-iMX6ULL-NANO-based board compatible with Yocto layer meta-out4 and fix device flashing by UUU (aka MFG Tools). Signed-off-by: Oleh Kravchenko <oleg(a)kaa.org.ua> --- configs/ev-imx280-nano-x-mb_defconfig | 5 +++++ configs/o4-imx6ull-nano_defconfig | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/configs/ev-imx280-nano-x-mb_defconfig b/configs/ev-imx280-nano-x-mb_defconfig index 10f2ec9333..4188286825 100644 --- a/configs/ev-imx280-nano-x-mb_defconfig +++ b/configs/ev-imx280-nano-x-mb_defconfig @@ -49,3 +49,8 @@ CONFIG_USB=y CONFIG_USB_GADGET=y CONFIG_CI_UDC=y CONFIG_OF_LIBFDT_OVERLAY=y +CONFIG_FASTBOOT_MMC_BOOT_SUPPORT=y +CONFIG_FASTBOOT_MMC_USER_SUPPORT=y +CONFIG_FASTBOOT_UUU_SUPPORT=y +CONFIG_USB_GADGET_PRODUCT_NUM=0x0001 +CONFIG_USB_GADGET_VENDOR_NUM=0x3016 diff --git a/configs/o4-imx6ull-nano_defconfig b/configs/o4-imx6ull-nano_defconfig index 384e6826a7..e8071cb791 100644 --- a/configs/o4-imx6ull-nano_defconfig +++ b/configs/o4-imx6ull-nano_defconfig @@ -57,3 +57,8 @@ CONFIG_USB=y CONFIG_USB_GADGET=y CONFIG_CI_UDC=y CONFIG_OF_LIBFDT_OVERLAY=y +CONFIG_FASTBOOT_MMC_BOOT_SUPPORT=y +CONFIG_FASTBOOT_MMC_USER_SUPPORT=y +CONFIG_FASTBOOT_UUU_SUPPORT=y +CONFIG_USB_GADGET_PRODUCT_NUM=0x0001 +CONFIG_USB_GADGET_VENDOR_NUM=0x3016 -- 2.32.0

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[PATCH] imx: spl: Fix typo BMODE_EMI -> BMODE_EIM
by Harald Seiler 19 Feb '22

19 Feb '22

The interface for NOR/OneNAND is called "EIM" not "EMI". Fix this. Signed-off-by: Harald Seiler <hws(a)denx.de> --- arch/arm/include/asm/mach-imx/sys_proto.h | 10 +++++----- arch/arm/mach-imx/spl.c | 4 ++-- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/arm/include/asm/mach-imx/sys_proto.h b/arch/arm/include/asm/mach-imx/sys_proto.h index 444834995ed0..804a9b953642 100644 --- a/arch/arm/include/asm/mach-imx/sys_proto.h +++ b/arch/arm/include/asm/mach-imx/sys_proto.h @@ -88,9 +88,9 @@ struct bd_info; #define IMX6_SRC_GPR10_PERSIST_SECONDARY_BOOT BIT(30) #define IMX6_BMODE_MASK GENMASK(7, 0) -#define IMX6_BMODE_SHIFT 4 -#define IMX6_BMODE_EMI_MASK BIT(3) -#define IMX6_BMODE_EMI_SHIFT 3 +#define IMX6_BMODE_SHIFT 4 +#define IMX6_BMODE_EIM_MASK BIT(3) +#define IMX6_BMODE_EIM_SHIFT 3 #define IMX6_BMODE_SERIAL_ROM_MASK GENMASK(26, 24) #define IMX6_BMODE_SERIAL_ROM_SHIFT 24 @@ -105,13 +105,13 @@ enum imx6_bmode_serial_rom { IMX6_BMODE_I2C3, }; -enum imx6_bmode_emi { +enum imx6_bmode_eim { IMX6_BMODE_NOR, IMX6_BMODE_ONENAND, }; enum imx6_bmode { - IMX6_BMODE_EMI, + IMX6_BMODE_EIM, #if defined(CONFIG_MX6UL) || defined(CONFIG_MX6ULL) IMX6_BMODE_QSPI, IMX6_BMODE_RESERVED, diff --git a/arch/arm/mach-imx/spl.c b/arch/arm/mach-imx/spl.c index 427b7f785990..2832b7350964 100644 --- a/arch/arm/mach-imx/spl.c +++ b/arch/arm/mach-imx/spl.c @@ -57,9 +57,9 @@ u32 spl_boot_device(void) /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */ switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) { /* EIM: See 8.5.1, Table 8-9 */ - case IMX6_BMODE_EMI: + case IMX6_BMODE_EIM: /* BOOT_CFG1[3]: NOR/OneNAND Selection */ - switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) { + switch ((reg & IMX6_BMODE_EIM_MASK) >> IMX6_BMODE_EIM_SHIFT) { case IMX6_BMODE_ONENAND: return BOOT_DEVICE_ONENAND; case IMX6_BMODE_NOR: -- 2.31.1

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[PATCH v2 1/4] xea: dts: Update the SPI-NOR flash memory partitions description
by Lukasz Majewski 19 Feb '22

19 Feb '22

Now the dts information corresponds to the one available in the kernel. With this patch applied the 'mtd list' shows proper names and offsets for MTD partitions. Signed-off-by: Lukasz Majewski <lukma(a)denx.de> --- (no changes since v1) arch/arm/dts/imx28-xea.dts | 55 +++++++++++++++++++++++--------------- 1 file changed, 34 insertions(+), 21 deletions(-) diff --git a/arch/arm/dts/imx28-xea.dts b/arch/arm/dts/imx28-xea.dts index de049042f8..34af6cf67f 100644 --- a/arch/arm/dts/imx28-xea.dts +++ b/arch/arm/dts/imx28-xea.dts @@ -86,27 +86,40 @@ spi-max-frequency = <40000000>; reg = <0>; - partition@0 { - label = "SPL (spi)"; - reg = <0x0 0x10000>; - read-only; - }; - partition@1 { - label = "u-boot (spi)"; - reg = <0x10000 0x70000>; - read-only; - }; - partition@2 { - label = "uboot-env (spi)"; - reg = <0x80000 0x20000>; - }; - partition@3 { - label = "kernel (spi)"; - reg = <0x100000 0x400000>; - }; - partition@4 { - label = "swupdate (spi)"; - reg = <0x50000 0x800000>; + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + partition@0 { + label = "SPL"; + reg = <0x0 0x10000>; + read-only; + }; + partition@10000 { + label = "u-boot"; + reg = <0x10000 0x70000>; + read-only; + }; + partition@80000 { + label = "uboot-env1"; + reg = <0x80000 0x10000>; + }; + partition@90000 { + label = "uboot-env2"; + reg = <0x90000 0x10000>; + }; + partition@A0000 { + label = "rescue"; + reg = <0xA0000 0xF40000>; + }; + partition@FE0000 { + label = "spl-boot-data1"; + reg = <0xFE0000 0x10000>; + }; + partition@FF0000 { + label = "spl-boot-data2"; + reg = <0xFF0000 0x10000>; + }; }; }; }; -- 2.20.1

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[PATCH] imx8m: Drop unused function env_get_offset
by Michael Trimarchi 19 Feb '22

19 Feb '22

This function is used in nxp u-boot tree. Signed-off-by: Michael Trimarchi <michael(a)amarulasolutions.com> --- arch/arm/mach-imx/imx8m/soc.c | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c index 863508776d..e75d2fa255 100644 --- a/arch/arm/mach-imx/imx8m/soc.c +++ b/arch/arm/mach-imx/imx8m/soc.c @@ -1352,19 +1352,4 @@ enum env_location env_get_location(enum env_operation op, int prio) return env_loc; } -#ifndef ENV_IS_EMBEDDED -long long env_get_offset(long long defautl_offset) -{ - enum boot_device dev = get_boot_device(); - - switch (dev) { - case NAND_BOOT: - return (60 << 20); /* 60MB offset for NAND */ - default: - break; - } - - return defautl_offset; -} -#endif #endif -- 2.25.1

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