From 4132bc90e63428702ae9adf41756087d670fc4f1 Mon Sep 17 00:00:00 2001 From: Tom Warren Date: Tue, 28 Jul 2015 15:13:17 -0700 Subject: 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 Acked-by: Stephen Warren --- board/nvidia/p2571/Makefile | 1 - board/nvidia/p2571/max77620_init.c | 85 -------------------------------------- board/nvidia/p2571/max77620_init.h | 3 +- board/nvidia/p2571/p2571.c | 22 ++++++++++ 4 files changed, 24 insertions(+), 87 deletions(-) delete mode 100644 board/nvidia/p2571/max77620_init.c (limited to 'board/nvidia/p2571') diff --git a/board/nvidia/p2571/Makefile b/board/nvidia/p2571/Makefile index 223062e..627b7ef 100644 --- 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 index ed8d4dc..0000000 --- a/board/nvidia/p2571/max77620_init.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * (C) Copyright 2013-2015 - * NVIDIA Corporation - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include -#include -#include -#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, ®->cmd_addr0); - writel(config, ®->cnfg); -} - -void tegra_i2c_ll_write_data(uint data, uint config) -{ - struct i2c_ctlr *reg = (struct i2c_ctlr *)TEGRA_DVC_BASE; - - writel(data, ®->cmd_data1); - writel(config, ®->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 9d5cce7..92c3719 100644 --- 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 fc710c1..842242c 100644 --- a/board/nvidia/p2571/p2571.c +++ b/board/nvidia/p2571/p2571.c @@ -6,10 +6,32 @@ */ #include +#include #include #include +#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 -- cgit v1.1