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board: ti: am43: Fix DCDC3 voltage for epos-evm

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A common voltage of 1.35V was being programmed for all am43 board
versions. EPOS-EVM Needs 1.20V for LPDDR2.

Fixes: fc69d47262 (“board: ti: AM43XX: Add ddr voltage rail configuration”)
Reported-by: James Doublesin <doublesin@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Keerthy 2018-05-02 15:06:31 +05:30 committed by Tom Rini
parent 1f154a6318
commit ebf48500df
2 changed files with 8 additions and 3 deletions
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10
board/ti/am43xx/board.c
View File

@ -385,7 +385,7 @@ const struct dpll_params *get_dpll_per_params(void)
void scale_vcores_generic(u32 m) void scale_vcores_generic(u32 m)
{ {
int mpu_vdd; int mpu_vdd, ddr_volt;
if (i2c_probe(TPS65218_CHIP_PM)) if (i2c_probe(TPS65218_CHIP_PM))
return; return;
@ -424,9 +424,13 @@ void scale_vcores_generic(u32 m)
return; return;
} }
if (board_is_eposevm())
ddr_volt = TPS65218_DCDC3_VOLT_SEL_1200MV;
else
ddr_volt = TPS65218_DCDC3_VOLT_SEL_1350MV;
/* Set DCDC3 (DDR) voltage */ /* Set DCDC3 (DDR) voltage */
if (tps65218_voltage_update(TPS65218_DCDC3, if (tps65218_voltage_update(TPS65218_DCDC3, ddr_volt)) {
TPS65218_DCDC3_VOLT_SEL_1350MV)) {
printf("%s failure\n", __func__); printf("%s failure\n", __func__);
return; return;
} }

1
include/power/tps65218.h
View File

@ -64,6 +64,7 @@ enum {
#define TPS65218_DCDC_VOLT_SEL_1260MV 0x29 #define TPS65218_DCDC_VOLT_SEL_1260MV 0x29
#define TPS65218_DCDC_VOLT_SEL_1330MV 0x30 #define TPS65218_DCDC_VOLT_SEL_1330MV 0x30
#define TPS65218_DCDC3_VOLT_SEL_1350MV 0x12 #define TPS65218_DCDC3_VOLT_SEL_1350MV 0x12
#define TPS65218_DCDC3_VOLT_SEL_1200MV 0xC
#define TPS65218_CC_STAT (BIT(0) | BIT(1)) #define TPS65218_CC_STAT (BIT(0) | BIT(1))
#define TPS65218_STATE (BIT(2) | BIT(3)) #define TPS65218_STATE (BIT(2) | BIT(3))