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ARM: imx: Add support for reading out the primary/secondary bmode to MX7

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Implement the 'getprisec' subcommand of 'bmode' command for i.MX7 by
reading out the SRC GPR10 bit 30. This bit is either set by the BootROM
if it switched to the secondary copy due to primary copy being corrupted
OR it can be overridden by the user.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP i.MX U-Boot Team <uboot-imx@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Marek Vasut 2020-08-05 15:34:07 +02:00 committed by Stefano Babic
parent 3c0fbbfd95
commit 4b44bea701
1 changed files with 7 additions and 0 deletions
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7
arch/arm/mach-imx/mx7/soc.c
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@ -418,6 +418,13 @@ const struct boot_mode soc_boot_modes[] = {
{"secondary", MAKE_CFGVAL_SECONDARY_BOOT},
{NULL, 0},
};
int boot_mode_getprisec(void)
{
struct src *psrc = (struct src *)SRC_BASE_ADDR;
return !!(readl(&psrc->gpr10) & IMX7_SRC_GPR10_PERSIST_SECONDARY_BOOT);
}
#endif
void reset_misc(void)