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authorPeng Fan <Peng.Fan@freescale.com>2015-05-22 13:09:58 +0800
committerMax Krummenacher <max.krummenacher@toradex.com>2016-03-09 14:42:35 +0100
commit5c3675b9db2f92170fff94681e3f4c6b3e165873 (patch)
treeec265ce6d4fc483350e053db67de895d24d298a4 /arch
parentc875182fd4100b22f036dabc45d4ef81d520b368 (diff)
MLK-10546-2 imx: mx7 implement reset_misc
On mx7d 12x12 lpddr3 arm2 board, POR_B reset in uboot will fail stress reset test, and hangs in rom code. Rom log buffer show thats wrong hab_image_entry and runs into serial download mode. Also there is no time delay reset circuit for this board. We found when disable CONFIG_VIDEO, all seems fine. Actually, only the following piece of code can make stress reset ok, " writel(LCDIF_CTRL1_VSYNC_EDGE_IRQ, &regs->hw_lcdif_ctrl1_clr); while (--timeout) { if (readl(&regs->hw_lcdif_ctrl1) & LCDIF_CTRL1_VSYNC_EDGE_IRQ) break; udelay(1); } " Here we use lcdif_power_down API which is better to shutdown lcdif same as the way used in arch_preboot_os. Implement reset_misc for mx7, since it does not hurt for others boards. Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/cpu/armv7/mx7/soc.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx7/soc.c b/arch/arm/cpu/armv7/mx7/soc.c
index 5b8ae2e904a..586a6f2241c 100644
--- a/arch/arm/cpu/armv7/mx7/soc.c
+++ b/arch/arm/cpu/armv7/mx7/soc.c
@@ -17,6 +17,7 @@
#include <asm/arch/crm_regs.h>
#include <dm.h>
#include <imx_thermal.h>
+#include <mxsfb.h>
#ifdef CONFIG_FASTBOOT
#ifdef CONFIG_ANDROID_RECOVERY
#include <recovery.h>
@@ -386,6 +387,13 @@ void s_init(void)
return;
}
+void reset_misc(void)
+{
+#ifdef CONFIG_VIDEO_MXS
+ lcdif_power_down();
+#endif
+}
+
#ifdef CONFIG_FASTBOOT
#ifdef CONFIG_ANDROID_RECOVERY