On 10/11/19 6:18 AM, Denis 'GNUtoo' Carikli wrote:
The following commit enabled raw SPL booting: 22d90d560a omap3: Use raw SPL by default for mmc1 but it was reverted by the following commit: 821c89d38c Revert "omap3: Use raw SPL by default for mmc1" because SPL is unable to distinguish between RAW images and garbage.
However if CONFIG_SPL_RAW_IMAGE_SUPPORT is disabled, SPL does identify if there is a valid image with spl_parse_image_header.
With this change, and CONFIG_SPL_RAW_IMAGE_SUPPORT disabled, raw MMC boot will be tried first, and if it fails, it FS will be tried.
This means that if FS boot is required then SPL_RAW_IMAGE_SUPPORT should be disabled. So with this patch applied, the default omap3_defconfig will fail to boot with FS mode. It is difficult to support this unless ROM passes some information on the bootmode.
Thanks and regards, Lokesh
The two scenarios have been tested on a BeagleBoard XM Revision C1.
Signed-off-by: Denis 'GNUtoo' Carikli GNUtoo@cyberdimension.org
arch/arm/mach-omap2/boot-common.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm/mach-omap2/boot-common.c b/arch/arm/mach-omap2/boot-common.c index 734fa9d9e6..a48244e1c5 100644 --- a/arch/arm/mach-omap2/boot-common.c +++ b/arch/arm/mach-omap2/boot-common.c @@ -132,8 +132,10 @@ void save_omap_boot_params(void) (boot_device <= MMC_BOOT_DEVICES_END)) { switch (boot_device) { case BOOT_DEVICE_MMC1: +#ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT boot_mode = MMCSD_MODE_FS; break; +#endif case BOOT_DEVICE_MMC2: boot_mode = MMCSD_MODE_RAW; break;