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-rw-r--r--board/nvidia/p2371-2180/p2371-2180.c22
-rw-r--r--board/nvidia/p2571/max77620_init.h2
2 files changed, 24 insertions, 0 deletions
diff --git a/board/nvidia/p2371-2180/p2371-2180.c b/board/nvidia/p2371-2180/p2371-2180.c
index 0f587eaaa7..dbdc1b65e6 100644
--- a/board/nvidia/p2371-2180/p2371-2180.c
+++ b/board/nvidia/p2371-2180/p2371-2180.c
@@ -30,6 +30,28 @@ void pin_mux_mmc(void)
ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
if (ret)
printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
+
+ /* Disable LDO4 discharge */
+ ret = dm_i2c_read(dev, MAX77620_CNFG2_L4_REG, &val, 1);
+ if (ret) {
+ printf("i2c_read 0 0x3c 0x2c failed: %d\n", ret);
+ } else {
+ val &= ~BIT(1); /* ADE */
+ ret = dm_i2c_write(dev, MAX77620_CNFG2_L4_REG, &val, 1);
+ if (ret)
+ printf("i2c_write 0 0x3c 0x2c failed: %d\n", ret);
+ }
+
+ /* Set MBLPD */
+ ret = dm_i2c_read(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
+ if (ret) {
+ printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
+ } else {
+ val |= BIT(6); /* MBLPD */
+ ret = dm_i2c_write(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
+ if (ret)
+ printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
+ }
}
/*
diff --git a/board/nvidia/p2571/max77620_init.h b/board/nvidia/p2571/max77620_init.h
index 92c3719112..39e550149a 100644
--- a/board/nvidia/p2571/max77620_init.h
+++ b/board/nvidia/p2571/max77620_init.h
@@ -13,6 +13,8 @@
#define MAX77620_I2C_ADDR 0x78
#define MAX77620_I2C_ADDR_7BIT 0x3C
+#define MAX77620_CNFGGLBL1_REG 0x00
+
#define MAX77620_SD0_REG 0x16
#define MAX77620_SD1_REG 0x17
#define MAX77620_SD2_REG 0x18