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| author | Andreas Dannenberg <dannenberg@ti.com> | 2018-08-27 15:59:07 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-09-11 08:32:55 -0400 |
| commit | 1e5b116ed21ce0e551cb18a032c283db0f8a4fe7 (patch) | |
| tree | 01d31e2c9af6b51305bfaecda0f448e84064e339 | |
| parent | 0911d952631df97e5b69d816cceebcbccbca34cf (diff) | |
| download | u-boot-1e5b116ed21ce0e551cb18a032c283db0f8a4fe7.tar.gz | |
include: am654_evm: Establish initial environment for SD card boot
Create a basic U-Boot environment that allows the automatic loading
of a Linux Kernel located at /boot/Image and an associated device tree
blob located at /boot/k3-am654-base-board.dtb from the secondary
partition of an ext4-formatted SD card on the AM654x EVM. Furthermore
the boot.scr and uEnv.txt detection and loading schemes are supported
in a manner already known from other TI platforms.
Note that this is intended to be a starting point to enable initial
board use and will most certainly get extended and refactored as
different boot media become available.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
| -rw-r--r-- | include/configs/am65x_evm.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/configs/am65x_evm.h b/include/configs/am65x_evm.h index 90dd9f3721..65015df131 100644 --- a/include/configs/am65x_evm.h +++ b/include/configs/am65x_evm.h @@ -11,6 +11,7 @@ #include <linux/sizes.h> #include <config_distro_bootcmd.h> +#include <environment/ti/mmc.h> #define CONFIG_ENV_SIZE (128 << 10) @@ -28,6 +29,40 @@ #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SPL_TEXT_BASE + \ CONFIG_SYS_K3_NON_SECURE_MSRAM_SIZE - 4) +/* U-Boot general configuration */ +#define EXTRA_ENV_AM65X_BOARD_SETTINGS \ + "findfdt=" \ + "if test $board_name = am65x; then " \ + "setenv name_fdt k3-am654-base-board.dtb; " \ + "else if test $name_fdt = undefined; then " \ + "echo WARNING: Could not determine device tree to use;"\ + "fi; fi; " \ + "setenv fdtfile ${name_fdt}\0" \ + "loadaddr=0x80080000\0" \ + "fdtaddr=0x82000000\0" \ + "name_kern=Image\0" \ + "console=ttyS2,115200n8\0" \ + "args_all=setenv optargs earlycon=ns16550a,mmio32,0x02800000\0" \ + "run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}\0" + +/* U-Boot MMC-specific configuration */ +#define EXTRA_ENV_AM65X_BOARD_SETTINGS_MMC \ + "boot=mmc\0" \ + "mmcdev=1\0" \ + "bootpart=1:2\0" \ + "bootdir=/boot\0" \ + "rd_spec=-\0" \ + "init_mmc=run args_all args_mmc\0" \ + "get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}\0" \ + "get_kern_mmc=load mmc ${bootpart} ${loadaddr} " \ + "${bootdir}/${name_kern}\0" + +/* Incorporate settings into the U-Boot environment */ +#define CONFIG_EXTRA_ENV_SETTINGS \ + DEFAULT_MMC_TI_ARGS \ + EXTRA_ENV_AM65X_BOARD_SETTINGS \ + EXTRA_ENV_AM65X_BOARD_SETTINGS_MMC + /* Now for the remaining common defines */ #include <configs/ti_armv7_common.h> |