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-rw-r--r--arch/arm/mach-omap2/sleep34xx.S11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S
index 06e47326e17c..17dfe30db3a7 100644
--- a/arch/arm/mach-omap2/sleep34xx.S
+++ b/arch/arm/mach-omap2/sleep34xx.S
@@ -596,6 +596,7 @@ usettbr0:
* Internal functions
*/
+/* This function implements the erratum ID i443 WA, applies to 34xx >= ES3.0 */
.text
ENTRY(es3_sdrc_fix)
ldr r4, sdrc_syscfg @ get config addr
@@ -641,6 +642,16 @@ sdrc_manual_1:
ENTRY(es3_sdrc_fix_sz)
.word . - es3_sdrc_fix
+/*
+ * This function implements the erratum ID i581 WA:
+ * SDRC state restore before accessing the SDRAM
+ *
+ * Only used at return from non-OFF mode. For OFF
+ * mode the ROM code configures the SDRC and
+ * the DPLL before calling the restore code directly
+ * from DDR.
+ */
+
/* Make sure SDRC accesses are ok */
wait_sdrc_ok: