[PATCH v2 1/2] imx8mq: configs: add support for distro boot commands
From: Alice Guo alice.guo@nxp.com
Supported boot device types in iMX8MQ: MMC, DHCP.
CONFIG_CMD_PART is added for command part and CONFIG_CMD_FS_GENERIC is for command fstype.
scriptaddr is the location in RAM where boot.scr.uimg/boot.scr will be loaded to prior to execution.
kernel_addr_r is the location in RAM where the kernel will be loaded to.
Delete unnecessary environment variables because "run distro_bootcmd" is set to be the default boot mode.
Signed-off-by: Alice Guo alice.guo@nxp.com ---
Changes for v2: - re-add boot_fit, initrd_addr and bootm_size which may need to be used
configs/imx8mq_evk_defconfig | 2 + include/configs/imx8mq_evk.h | 76 ++++++------------------------------ 2 files changed, 14 insertions(+), 64 deletions(-)
diff --git a/configs/imx8mq_evk_defconfig b/configs/imx8mq_evk_defconfig index de91a76d41..901841ea36 100644 --- a/configs/imx8mq_evk_defconfig +++ b/configs/imx8mq_evk_defconfig @@ -36,6 +36,8 @@ CONFIG_CMD_EXT2=y CONFIG_CMD_EXT4=y CONFIG_CMD_EXT4_WRITE=y CONFIG_CMD_FAT=y +CONFIG_CMD_PART=y +CONFIG_CMD_FS_GENERIC=y CONFIG_OF_CONTROL=y CONFIG_ENV_OVERWRITE=y CONFIG_ENV_IS_IN_MMC=y diff --git a/include/configs/imx8mq_evk.h b/include/configs/imx8mq_evk.h index 3f9a3bc100..eb5bc03403 100644 --- a/include/configs/imx8mq_evk.h +++ b/include/configs/imx8mq_evk.h @@ -74,80 +74,28 @@ #define IMX_FEC_BASE 0x30BE0000 #endif
-#define CONFIG_MFG_ENV_SETTINGS \ - "mfgtool_args=setenv bootargs console=${console},${baudrate} " \ - "rdinit=/linuxrc " \ - "g_mass_storage.stall=0 g_mass_storage.removable=1 " \ - "g_mass_storage.idVendor=0x066F g_mass_storage.idProduct=0x37FF "\ - "g_mass_storage.iSerialNumber="" "\ - "clk_ignore_unused "\ - "\0" \ - "initrd_addr=0x43800000\0" \ - "bootcmd_mfg=run mfgtool_args;booti ${loadaddr} ${initrd_addr} ${fdt_addr};\0" \ +#ifndef CONFIG_SPL_BUILD +#define BOOT_TARGET_DEVICES(func) \ + func(MMC, mmc, 0) \ + func(MMC, mmc, 1) \ + func(DHCP, dhcp, na) + +#include <config_distro_bootcmd.h> +#endif + /* Initial environment variables */ #define CONFIG_EXTRA_ENV_SETTINGS \ - CONFIG_MFG_ENV_SETTINGS \ - "script=boot.scr\0" \ + BOOTENV \ + "scriptaddr=0x43500000\0" \ + "kernel_addr_r=0x40880000\0" \ "image=Image\0" \ "console=ttymxc0,115200\0" \ "fdt_addr=0x43000000\0" \ - "boot_fdt=try\0" \ "fdt_file=imx8mq-evk.dtb\0" \ "initrd_addr=0x43800000\0" \ "bootm_size=0x10000000\0" \ - "mmcdev="__stringify(CONFIG_SYS_MMC_ENV_DEV)"\0" \ "mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \ "mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \ - "mmcautodetect=yes\0" \ - "mmcargs=setenv bootargs console=${console} root=${mmcroot}\0 " \ - "loadbootscript=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \ - "bootscript=echo Running bootscript from mmc ...; " \ - "source\0" \ - "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \ - "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \ - "mmcboot=echo Booting from mmc ...; " \ - "run mmcargs; " \ - "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \ - "if run loadfdt; then " \ - "booti ${loadaddr} - ${fdt_addr}; " \ - "else " \ - "echo WARN: Cannot load the DT; " \ - "fi; " \ - "else " \ - "echo wait for boot; " \ - "fi;\0" \ - "netargs=setenv bootargs console=${console} " \ - "root=/dev/nfs " \ - "ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \ - "netboot=echo Booting from net ...; " \ - "run netargs; " \ - "if test ${ip_dyn} = yes; then " \ - "setenv get_cmd dhcp; " \ - "else " \ - "setenv get_cmd tftp; " \ - "fi; " \ - "${get_cmd} ${loadaddr} ${image}; " \ - "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \ - "if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \ - "booti ${loadaddr} - ${fdt_addr}; " \ - "else " \ - "echo WARN: Cannot load the DT; " \ - "fi; " \ - "else " \ - "booti; " \ - "fi;\0" - -#define CONFIG_BOOTCOMMAND \ - "mmc dev ${mmcdev}; if mmc rescan; then " \ - "if run loadbootscript; then " \ - "run bootscript; " \ - "else " \ - "if run loadimage; then " \ - "run mmcboot; " \ - "else run netboot; " \ - "fi; " \ - "fi; " \ - "else booti ${loadaddr} - ${fdt_addr}; fi"
/* Link Definitions */ #define CONFIG_LOADADDR 0x40480000 -- 2.17.1
From: Alice Guo alice.guo@nxp.com
Distro Boot requires a U-Boot-specific script named boot.scr or boot.scr.uimg which contains boot commands to boot the system. The boot.cmd is such a file. Use mkimage to generate boot.scr or boot.scr.uimg from boot.cmd, and the command is: mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n "Distro Boot Script" -d boot.cmd boot.scr.uimg
The boot.cmd file is an example script and can be modified based on needs. bootargs is set in this script and root uses the default value "/dev/mmcblk1p2 rootwait rw" which can be changed by overriding mmcroot.
On the iMX8MQ platform I used, "mmc0" represents eMMC and "mmc1" represents SD card.
Signed-off-by: Alice Guo alice.guo@nxp.com ---
Changes for v2: - none
board/freescale/imx8mq_evk/boot.cmd | 35 +++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 board/freescale/imx8mq_evk/boot.cmd
diff --git a/board/freescale/imx8mq_evk/boot.cmd b/board/freescale/imx8mq_evk/boot.cmd new file mode 100644 index 0000000000..964993e144 --- /dev/null +++ b/board/freescale/imx8mq_evk/boot.cmd @@ -0,0 +1,35 @@ +setenv bootargs console=${console} root=${mmcroot}; + +for boot_target in ${boot_targets}; +do + if test "${boot_target}" = "mmc0" ; then + if fatload mmc 0:${mmcpart} ${kernel_addr_r} ${image}; then + if fatload mmc 0:${mmcpart} ${fdt_addr} ${fdt_file}; then + echo Load image and .dtb from eMMC(mmc0); + booti ${kernel_addr_r} - ${fdt_addr}; + exit; + fi + fi + fi + + if test "${boot_target}" = "mmc1" ; then + if fatload mmc 1:${mmcpart} ${kernel_addr_r} ${image}; then + if fatload mmc 1:${mmcpart} ${fdt_addr} ${fdt_file}; then + echo Load image and .dtb from SD card(mmc1); + booti ${kernel_addr_r} - ${fdt_addr}; + exit; + fi + fi + fi + + if test "${boot_target}" = "dhcp" ; then + if dhcp ${kernel_addr_r} ${serverip}:${image}; then + if dhcp ${fdt_addr} ${serverip}:${fdt_file}; then + echo Load image and .dtb from net(dhcp); + booti ${kernel_addr_r} - ${fdt_addr}; + exit; + fi + fi + fi + +done -- 2.17.1
participants (1)
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Alice Guo (OSS)