diff options
| author | Quentin Schulz <quentin.schulz@theobroma-systems.com> | 2022-09-15 11:14:27 +0200 |
|---|---|---|
| committer | Quentin Schulz <quentin.schulz@theobroma-systems.com> | 2022-10-19 12:13:03 +0200 |
| commit | 19303a464ef9c432d8e82430cd7bb46166c3f7a9 (patch) | |
| tree | 516d7c6714a904aaae4fb2076bba84f3247d2f60 | |
| parent | c6fdf60f02e62f26b682133e78cec70a9cbcddfc (diff) | |
FROMLIST: rockchip: puma-rk3399: load environment from same medium as one used to load U-Boot proper
Chances are when one boots U-Boot proper from a given storage medium,
they want the same medium to be used to load and store the environment.
This basically allows to have completely separate U-Boot (TPL/SPL/U-Boot
proper/environment) per storage medium which is convenient when working
with recovery from SD-Card as one would just need to insert a properly
configured SD-Card into the device to have access to their whole debug
setup.
No fallback mechanism is provided as to not dirty other storage medium
environment by mistake. However, since arch_env_get_location() is called
by env_init() which is part of the pre-relocation process, a valid,
non-ENVL_UNKNOWN, value shall be returned otherwise the relocation fails
with the following message:
initcall sequence 00000000002866c0 failed at call 0000000000256b34 (err=-19)
This valid, non-ENVL_UNKNOWN, value is ENVL_NOWHERE which requires to
always select CONFIG_ENV_IS_NOWHERE otherwise this work-around does not
work.
Cc: Quentin Schulz <foss+uboot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20220915091432.789294-8-foss+uboot@0leil.net
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
| -rw-r--r-- | board/theobroma-systems/puma_rk3399/puma-rk3399.c | 37 | ||||
| -rw-r--r-- | configs/puma-rk3399_defconfig | 1 |
2 files changed, 38 insertions, 0 deletions
diff --git a/board/theobroma-systems/puma_rk3399/puma-rk3399.c b/board/theobroma-systems/puma_rk3399/puma-rk3399.c index 5e5e58c88e..7ef4bac24b 100644 --- a/board/theobroma-systems/puma_rk3399/puma-rk3399.c +++ b/board/theobroma-systems/puma_rk3399/puma-rk3399.c @@ -6,6 +6,7 @@ #include <common.h> #include <dm.h> #include <env.h> +#include <env_internal.h> #include <init.h> #include <log.h> #include <misc.h> @@ -135,6 +136,42 @@ int mmc_get_env_dev(void) return CONFIG_SYS_MMC_ENV_DEV; } +#if !IS_ENABLED(CONFIG_ENV_IS_NOWHERE) +#error Please enable CONFIG_ENV_IS_NOWHERE +#endif + +enum env_location arch_env_get_location(enum env_operation op, int prio) +{ + const char *boot_device = + ofnode_read_chosen_string("u-boot,spl-boot-device"); + + if (prio > 0) + return ENVL_UNKNOWN; + + if (!boot_device) { + debug("%s: /chosen/u-boot,spl-boot-device not set\n", + __func__); + return ENVL_NOWHERE; + } + + debug("%s: booted from %s\n", __func__, boot_device); + + if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH) && + !strcmp(boot_device, "/spi@ff1d0000/flash@0")) + return ENVL_SPI_FLASH; + + if (IS_ENABLED(CONFIG_ENV_IS_IN_MMC) && + (!strcmp(boot_device, "/mmc@fe320000") || + !strcmp(boot_device, "/mmc@fe330000"))) + return ENVL_MMC; + + printf("%s: No environment available: booted from %s but U-Boot " + "config does not allow loading environment from it.", + __func__, boot_device); + + return ENVL_NOWHERE; +} + int misc_init_r(void) { const u32 cpuid_offset = 0x7; diff --git a/configs/puma-rk3399_defconfig b/configs/puma-rk3399_defconfig index f62cfc9aab..cfa743668b 100644 --- a/configs/puma-rk3399_defconfig +++ b/configs/puma-rk3399_defconfig @@ -53,6 +53,7 @@ CONFIG_SPL_OF_CONTROL=y CONFIG_OF_LIVE=y CONFIG_OF_SPL_REMOVE_PROPS="interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents" CONFIG_ENV_OVERWRITE=y +CONFIG_ENV_IS_NOWHERE=y CONFIG_ENV_IS_IN_MMC=y CONFIG_ENV_IS_IN_SPI_FLASH=y CONFIG_ENV_SPI_MAX_HZ=50000000 |