From 4b44bea701a67e3b83cb82f44fa40485b111d394 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Wed, 5 Aug 2020 15:34:07 +0200
Subject: ARM: imx: Add support for reading out the primary/secondary bmode to
 MX7

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>
---
 arch/arm/mach-imx/mx7/soc.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-imx/mx7/soc.c b/arch/arm/mach-imx/mx7/soc.c
index b70ef80131..d0385b36e4 100644
--- a/arch/arm/mach-imx/mx7/soc.c
+++ b/arch/arm/mach-imx/mx7/soc.c
@@ -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)
-- 
cgit