Add custom environment variables and commands to help boot from micro-SD card and/or from network (TFTP protocol).

Signed-off-by: Purna Chandra Mandal purna.mandal@microchip.com

---

include/configs/pic32mzdask.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+)

diff --git a/include/configs/pic32mzdask.h b/include/configs/pic32mzdask.h index 94e73e3..c903113 100644 --- a/include/configs/pic32mzdask.h +++ b/include/configs/pic32mzdask.h @@ -169,5 +169,48 @@ #define CONFIG_BOOTDELAY 5 /* autoboot after X seconds */ #undef CONFIG_BOOTARGS

+#define CONFIG_EXTRA_ENV_SETTINGS \ + "loadaddr="__stringify(CONFIG_SYS_LOAD_ADDR)"\0" \ + "uenvfile=uEnv.txt\0" \ + "uenvaddr="__stringify(CONFIG_SYS_ENV_ADDR)"\0" \ + "scriptfile=boot.scr\0" \ + "ubootfile=u-boot.bin\0" \ + "importbootenv= " \ + "env import -t -r ${uenvaddr} ${filesize};\0" \ + \ + "tftploadenv=tftp ${uenvaddr} ${uenvfile} \0" \ + "tftploadscr=tftp ${uenvaddr} ${scriptfile} \0" \ + "tftploadub=tftp ${loadaddr} ${ubootfile} \0" \ + \ + "mmcloadenv=fatload mmc 0 ${uenvaddr} ${uenvfile}\0" \ + "mmcloadscr=fatload mmc 0 ${uenvaddr} ${scriptfile}\0" \ + "mmcloadub=fatload mmc 0 ${loadaddr} ${ubootfile}\0" \ + \ + "flashub=protect off bank 1; " \ + "erase.b 0x9d004000 0x9d0f3fff; " \ + "cp.b ${loadaddr} 0x9d004000 ${filesize}; " \ + "cmp.b ${loadaddr} 0x9d004000 ${filesize}; " \ + "protect on bank 1; \0" \ + \ + "loadbootenv=run mmcloadenv || run tftploadenv\0" \ + "loadbootscr=run mmcloadscr || run tftploadscr\0" \ + "bootcmd_root= " \ + "if run loadbootenv; then " \ + "echo Loaded environment ${uenvfile}; " \ + "run importbootenv; " \ + "fi; " \ + "if test -n "${bootcmd_uenv}" ; then " \ + "echo Running bootcmd_uenv ...; " \ + "run bootcmd_uenv; " \ + "fi; " \ + "if run loadbootscr; then " \ + "echo Jumping to ${scriptfile}; " \ + "source ${uenvaddr}; " \ + "fi; " \ + "echo Custom environment or script not found. " \ + "Aborting auto booting...; \0" \ + "" + +#define CONFIG_BOOTCOMMAND "run bootcmd_root" #define CONFIG_MEMSIZE_IN_BYTES /* pass 'memsize=' in bytes */ #endif /* __PIC32MZDASK_CONFIG_H */