am33xx: add ELM support
AM33XX has Error Location Module (ELM) that can be used in conjuction
with GPMC controller to implement BCH codes fully in hardware.
This code is mostly taken from arago tree.
Signed-off-by: Mansoor Ahamed <mansoor.ahamed@ti.com>
Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
diff --git a/arch/arm/cpu/armv7/am33xx/clock.c b/arch/arm/cpu/armv7/am33xx/clock.c
index 6eb7d9f..2b7c910 100644
--- a/arch/arm/cpu/armv7/am33xx/clock.c
+++ b/arch/arm/cpu/armv7/am33xx/clock.c
@@ -155,6 +155,11 @@
while (readl(&cmper->gpmcclkctrl) != PRCM_MOD_EN)
;
+ /* ELM */
+ writel(PRCM_MOD_EN, &cmper->elmclkctrl);
+ while (readl(&cmper->elmclkctrl) != PRCM_MOD_EN)
+ ;
+
/* MMC0*/
writel(PRCM_MOD_EN, &cmper->mmc0clkctrl);
while (readl(&cmper->mmc0clkctrl) != PRCM_MOD_EN)