[U-Boot] [PATCH 6/7] ARM: DRA7: Update DDR IO configuration

Lokesh Vutla lokeshvutla at ti.com
Wed Jun 3 11:13:26 CEST 2015


DDRIO_2 and LPDDR2CH1_1 registers are not present
for DRA7. So not configuring these registers for DRA7xx

Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
---
 arch/arm/cpu/armv7/omap5/hwinit.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/arm/cpu/armv7/omap5/hwinit.c b/arch/arm/cpu/armv7/omap5/hwinit.c
index 8d6b59e..03c2b97 100644
--- a/arch/arm/cpu/armv7/omap5/hwinit.c
+++ b/arch/arm/cpu/armv7/omap5/hwinit.c
@@ -75,16 +75,20 @@ static void io_settings_ddr3(void)
 
 	writel(ioregs->ctrl_ddrio_0, (*ctrl)->control_ddrio_0);
 	writel(ioregs->ctrl_ddrio_1, (*ctrl)->control_ddrio_1);
-	writel(ioregs->ctrl_ddrio_2, (*ctrl)->control_ddrio_2);
+
+	if (!is_dra7xx()) {
+		writel(ioregs->ctrl_ddrio_2, (*ctrl)->control_ddrio_2);
+		writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_1);
+	}
 
 	/* omap5432 does not use lpddr2 */
 	writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_0);
-	writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_1);
 
 	writel(ioregs->ctrl_emif_sdram_config_ext,
 	       (*ctrl)->control_emif1_sdram_config_ext);
-	writel(ioregs->ctrl_emif_sdram_config_ext,
-	       (*ctrl)->control_emif2_sdram_config_ext);
+	if (!is_dra72x())
+		writel(ioregs->ctrl_emif_sdram_config_ext,
+		       (*ctrl)->control_emif2_sdram_config_ext);
 
 	if (is_omap54xx()) {
 		/* Disable DLL select */
-- 
1.9.1



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