On 18 August 2017 at 14:42, Jaehoon Chung jh80.chung@samsung.com wrote:
On 08/16/2017 09:55 PM, Sam Protsenko wrote:
If SD card is present -- try to boot from it first. If no -- try to boot Android from eMMC.
Well, i didn't know exactly..but is it working?
Yes, I verified it on AM57x EVM, it's working just fine. All my previous patches were meant exactly for this: booting Android from eMMC. This patch series just finishes the job.
Do you see anything suspicious about this? If so, please tell.
Signed-off-by: Sam Protsenko semen.protsenko@linaro.org
Changes in v2:
- Do not remove the attempt to boot regular Linux from eMMC (just add Android boot in the end of the cycle)
include/environment/ti/boot.h | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/include/environment/ti/boot.h b/include/environment/ti/boot.h index 1c3ae40a99..a05f5ba9bd 100644 --- a/include/environment/ti/boot.h +++ b/include/environment/ti/boot.h @@ -28,7 +28,24 @@ "vram=16M\0" \ "partitions=" PARTS_DEFAULT "\0" \ "optargs=\0" \
"dofastboot=0\0"
"dofastboot=0\0" \"emmc_android_boot=" \"setenv eval_bootargs setenv bootargs $bootargs; " \"run eval_bootargs; " \"setenv mmcdev 1; " \Need to do "setenv mmcdev 1"? Did it already set before doing "run emmc_android_boot;"?
Frankly, I want to keep "emmc_android_boot" command as explicit and independent as I can. Say, if user changes "mmcdev" variable, I want to be sure that "emmc_android_boot" will fix it.
"setenv fdt_part 3; " \"setenv boot_part 9; " \"setenv machid fe6; " \"mmc dev $mmcdev; " \"mmc rescan; " \Why do "mmc rescan"?
The same as above. I want to keep this command independent. So that if user was using SD card, "emmc_android_boot" will switch to eMMC anyway, before trying to boot.
"part start mmc ${mmcdev} ${fdt_part} fdt_start; " \"part size mmc ${mmcdev} ${fdt_part} fdt_size; " \"part start mmc ${mmcdev} ${boot_part} boot_start; " \"part size mmc ${mmcdev} ${boot_part} boot_size; " \"mmc read ${fdtaddr} ${fdt_start} ${fdt_size}; " \"mmc read ${loadaddr} ${boot_start} ${boot_size}; " \"echo Booting from eMMC ...; " \"bootm $loadaddr $loadaddr $fdtaddr;\0"#ifdef CONFIG_OMAP54XX
@@ -76,6 +93,7 @@ "setenv bootpart 1:2; " \ "setenv mmcroot /dev/mmcblk0p2 rw; " \ "run mmcboot;" \
"run emmc_android_boot; " \ ""#endif /* CONFIG_OMAP54XX */