[U-Boot] [PATCH 2/2] board: ti: AM43XX: Add ddr voltage rail configuration

Keerthy j-keerthy at ti.com
Fri Jun 2 09:30:31 UTC 2017


Add ddr voltage rail (dcdc3) configuration. Set the dcdc3
DDR supply to 1.35V.

Signed-off-by: Keerthy <j-keerthy at ti.com>
---
 board/ti/am43xx/board.c  | 7 +++++++
 include/power/tps65218.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c
index c15d8fa..2c02909 100644
--- a/board/ti/am43xx/board.c
+++ b/board/ti/am43xx/board.c
@@ -441,6 +441,13 @@ void scale_vcores_generic(u32 m)
 		printf("%s failure\n", __func__);
 		return;
 	}
+
+	/* Set DCDC3 (DDR) voltage */
+	if (tps65218_voltage_update(TPS65218_DCDC3,
+	    TPS65218_DCDC3_VOLT_SEL_1350MV)) {
+		printf("%s failure\n", __func__);
+		return;
+	}
 }
 
 void scale_vcores_idk(u32 m)
diff --git a/include/power/tps65218.h b/include/power/tps65218.h
index e3538e2..43b9c9a 100644
--- a/include/power/tps65218.h
+++ b/include/power/tps65218.h
@@ -63,6 +63,7 @@ enum {
 #define TPS65218_DCDC_VOLT_SEL_1200MV		0x23
 #define TPS65218_DCDC_VOLT_SEL_1260MV		0x29
 #define TPS65218_DCDC_VOLT_SEL_1330MV		0x30
+#define TPS65218_DCDC3_VOLT_SEL_1350MV		0x12
 
 #define TPS65218_CC_STAT	(BIT(0) | BIT(1))
 #define TPS65218_STATE		(BIT(2) | BIT(3))
-- 
1.9.1



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