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authorBrad Griffis <bgriffis@ti.com>2019-04-29 09:59:29 +0530
committerTom Rini <trini@konsulko.com>2019-05-05 08:48:50 -0400
commit84cf295f8454156be70958c8dba2c1368942626e (patch)
tree7b27483698d31d2d977826762ba0c6e3720a6321 /arch/arm/mach-omap2
parent82195797a415211c7a674116e40e10750237790b (diff)
arm: mach-omap2: am33xx: ddr: Add 1ms delay to avoid L3 error
Add 1ms delay to avoid L3 timeout error during suspend resume. Signed-off-by: Brad Griffis <bgriffis@ti.com> Signed-off-by: Keerthy <j-keerthy@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2')
-rw-r--r--arch/arm/mach-omap2/am33xx/ddr.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/am33xx/ddr.c b/arch/arm/mach-omap2/am33xx/ddr.c
index 816d4e8e05..5d947a68c3 100644
--- a/arch/arm/mach-omap2/am33xx/ddr.c
+++ b/arch/arm/mach-omap2/am33xx/ddr.c
@@ -138,6 +138,9 @@ void config_sdram_emif4d5(const struct emif_regs *regs, int nr)
/* Enable read leveling */
writel(0x80000000, &emif_reg[nr]->emif_rd_wr_lvl_ctl);
+ /* Wait 1ms because of L3 timeout error */
+ udelay(1000);
+
/*
* Enable full read and write leveling. Wait for read and write
* leveling bit to clear RDWRLVLFULL_START bit 31