T210: P2571: Enable SD-card power via PMIC LDO2

This was done in the 32-bit AVP loader (SPL) but is
board-specific so should be moved to the CPU portion.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>

diff --git a/board/nvidia/p2571/Makefile b/board/nvidia/p2571/Makefile
index 223062e9a36000d821b300dfffa98748d96d7ef6..627b7efa2a3be20e7b31659f970f470ed938694f 100644 (file)
--- a/board/nvidia/p2571/Makefile
+++ b/board/nvidia/p2571/Makefile
@@ -5,5 +5,4 @@
 # SPDX-License-Identifier:     GPL-2.0+
 #
 
-obj-y  += max77620_init.o
 obj-y  += p2571.o

diff --git a/board/nvidia/p2571/max77620_init.c b/board/nvidia/p2571/max77620_init.c
deleted file mode 100644 (file)
index ed8d4dc..0000000
--- a/board/nvidia/p2571/max77620_init.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * (C) Copyright 2013-2015
- * NVIDIA Corporation <www.nvidia.com>
- *
- * SPDX-License-Identifier:     GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/arch-tegra/tegra_i2c.h>
-#include "max77620_init.h"
-
-/* MAX77620-PMIC-specific early init code - get CPU rails up, etc */
-
-void tegra_i2c_ll_write_addr(uint addr, uint config)
-{
-       struct i2c_ctlr *reg = (struct i2c_ctlr *)TEGRA_DVC_BASE;
-
-       writel(addr, &reg->cmd_addr0);
-       writel(config, &reg->cnfg);
-}
-
-void tegra_i2c_ll_write_data(uint data, uint config)
-{
-       struct i2c_ctlr *reg = (struct i2c_ctlr *)TEGRA_DVC_BASE;
-
-       writel(data, &reg->cmd_data1);
-       writel(config, &reg->cnfg);
-}
-
-void pmic_enable_cpu_vdd(void)
-{
-       uint reg;
-       debug("%s entry\n", __func__);
-
-       /* Setup/Enable GPIO5 - VDD_CPU_REG_EN */
-       debug("%s: Setting GPIO5 to enable CPU regulator\n", __func__);
-       /* B3=1=logic high,B2=dontcare,B1=0=output,B0=1=push-pull */
-       reg = 0x0900 | MAX77620_GPIO5_REG;
-       tegra_i2c_ll_write_addr(MAX77620_I2C_ADDR, 2);
-       tegra_i2c_ll_write_data(reg, I2C_SEND_2_BYTES);
-       udelay(10 * 1000);
-
-       /* Setup/Enable GPIO1 - VDD_HDMI_5V0_BST_EN */
-       debug("%s: Setting GPIO1 to enable HDMI\n", __func__);
-       reg = 0x0900 | MAX77620_GPIO1_REG;
-       tegra_i2c_ll_write_addr(MAX77620_I2C_ADDR, 2);
-       tegra_i2c_ll_write_data(reg, I2C_SEND_2_BYTES);
-       udelay(10 * 1000);
-
-       /* GPIO 0,1,5,6,7 = GPIO, 2,3,4 = alt mode */
-       reg = 0x1C00 | MAX77620_AME_GPIO;
-       tegra_i2c_ll_write_addr(MAX77620_I2C_ADDR, 2);
-       tegra_i2c_ll_write_data(reg, I2C_SEND_2_BYTES);
-       udelay(10 * 1000);
-
-       /* Disable SD1 Remote Sense, Set SD1 for LPDDR4 to 1.125v */
-       debug("%s: Set SD1 for LPDDR4, disable SD1RS, voltage to 1.125v\n",
-             __func__);
-       /* bit1=0, SD1 remote sense disabled */
-       reg = 0x0400 | MAX77620_CNFG2SD_REG;
-       tegra_i2c_ll_write_addr(MAX77620_I2C_ADDR, 2);
-       tegra_i2c_ll_write_data(reg, I2C_SEND_2_BYTES);
-       udelay(10 * 1000);
-
-       /* SD1 output = 1.125V */
-       reg = 0x2A00 | MAX77620_SD1_REG;
-       tegra_i2c_ll_write_addr(MAX77620_I2C_ADDR, 2);
-       tegra_i2c_ll_write_data(reg, I2C_SEND_2_BYTES);
-       udelay(10 * 1000);
-
-       debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
-       /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
-       reg = 0xF200 | MAX77620_CNFG1_L2_REG;
-       tegra_i2c_ll_write_addr(MAX77620_I2C_ADDR, 2);
-       tegra_i2c_ll_write_data(reg, I2C_SEND_2_BYTES);
-       udelay(10 * 1000);
-
-       debug("%s: Set LDO1 for USB3 phy power to 1.05V??\n", __func__);
-       /* 0xCA for 105v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
-       reg = 0xCA00 | MAX77620_CNFG1_L1_REG;
-       tegra_i2c_ll_write_addr(MAX77620_I2C_ADDR, 2);
-       tegra_i2c_ll_write_data(reg, I2C_SEND_2_BYTES);
-       udelay(10 * 1000);
-}

diff --git a/board/nvidia/p2571/max77620_init.h b/board/nvidia/p2571/max77620_init.h
index 9d5cce7c6efa9cb6ddf68389b3f9438ef96722a3..92c3719112a4cedb6660a1d483b6466a7853280f 100644 (file)
--- a/board/nvidia/p2571/max77620_init.h
+++ b/board/nvidia/p2571/max77620_init.h
@@ -10,7 +10,8 @@
 
 /* MAX77620-PMIC-specific early init regs */
 
-#define MAX77620_I2C_ADDR              0x78            /* or 0x3C 7-bit */
+#define MAX77620_I2C_ADDR              0x78
+#define MAX77620_I2C_ADDR_7BIT         0x3C
 
 #define MAX77620_SD0_REG               0x16
 #define MAX77620_SD1_REG               0x17

diff --git a/board/nvidia/p2571/p2571.c b/board/nvidia/p2571/p2571.c
index fc710c17505dbe8b5ef7033a3406442abaae2250..842242cf5cddbeed9b16da1514e674a8d27779f3 100644 (file)
--- a/board/nvidia/p2571/p2571.c
+++ b/board/nvidia/p2571/p2571.c
@@ -6,10 +6,32 @@
  */
 
 #include <common.h>
+#include <i2c.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/pinmux.h>
+#include "max77620_init.h"
 #include "pinmux-config-p2571.h"
 
+void pin_mux_mmc(void)
+{
+       struct udevice *dev;
+       uchar val;
+       int ret;
+
+       /* Turn on MAX77620 LDO2 to 3.3V for SD card power */
+       debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
+       ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
+       if (ret) {
+               printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
+               return;
+       }
+       /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
+       val = 0xF2;
+       ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
+       if (ret)
+               printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
+}
+
 /*
  * Routine: pinmux_init
  * Description: Do individual peripheral pinmux configs