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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2014, 2015 O.S. Systems Software LTDA.
- * Copyright (C) 2014 Kynetics LLC.
- * Copyright (C) 2014 Revolution Robotics, Inc.
- *
- * Author: Otavio Salvador <otavio@ossystems.com.br>
- */
- #include <init.h>
- #include <asm/arch/clock.h>
- #include <asm/arch/iomux.h>
- #include <asm/arch/imx-regs.h>
- #include <asm/arch/mx6-pins.h>
- #include <asm/arch/sys_proto.h>
- #include <asm/global_data.h>
- #include <asm/gpio.h>
- #include <asm/mach-imx/iomux-v3.h>
- #include <asm/mach-imx/mxc_i2c.h>
- #include <asm/io.h>
- #include <linux/sizes.h>
- #include <common.h>
- #include <watchdog.h>
- #include <fsl_esdhc_imx.h>
- #include <i2c.h>
- #include <mmc.h>
- #include <usb.h>
- #include <power/pmic.h>
- DECLARE_GLOBAL_DATA_PTR;
- #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
- PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
- PAD_CTL_SRE_FAST | PAD_CTL_HYS | \
- PAD_CTL_LVE)
- #define USDHC_PAD_CTRL (PAD_CTL_PUS_22K_UP | \
- PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
- PAD_CTL_SRE_FAST | PAD_CTL_HYS | \
- PAD_CTL_LVE)
- #define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
- PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
- PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
- PAD_CTL_ODE | PAD_CTL_SRE_FAST)
- #define CONFIG_POWER_MAX77696_I2C_ADDR 0x3C
- enum {
- L01_CNFG1 = 0x43,
- L01_CNFG2,
- L02_CNFG1,
- L02_CNFG2,
- L03_CNFG1,
- L03_CNFG2,
- L04_CNFG1,
- L04_CNFG2,
- L05_CNFG1,
- L05_CNFG2,
- L06_CNFG1,
- L06_CNFG2,
- L07_CNFG1,
- L07_CNFG2,
- L08_CNFG1,
- L08_CNFG2,
- L09_CNFG1,
- L09_CNFG2,
- L10_CNFG1,
- L10_CNFG2,
- LDO_INT1,
- LDO_INT2,
- LDO_INT1M,
- LDO_INT2M,
- LDO_CNFG3,
- SW1_CNTRL,
- SW2_CNTRL,
- SW3_CNTRL,
- SW4_CNTRL,
- EPDCNFG,
- EPDINTS,
- EPDINT,
- EPDINTM,
- EPDVCOM,
- EPDVEE,
- EPDVNEG,
- EPDVPOS,
- EPDVDDH,
- EPDSEQ,
- EPDOKINTS,
- CID = 0x9c,
- PMIC_NUM_OF_REGS,
- };
- int dram_init(void)
- {
- gd->ram_size = imx_ddr_size();
- return 0;
- }
- static void setup_iomux_uart(void)
- {
- static iomux_v3_cfg_t const uart1_pads[] = {
- MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
- MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
- };
- imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
- }
- static struct fsl_esdhc_cfg usdhc_cfg[1] = {
- {USDHC2_BASE_ADDR, 0, 0, 0, 1},
- };
- int board_mmc_getcd(struct mmc *mmc)
- {
- return 1; /* Assume boot SD always present */
- }
- int board_mmc_init(struct bd_info *bis)
- {
- static iomux_v3_cfg_t const usdhc2_pads[] = {
- MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_RST__USDHC2_RST | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DAT4__USDHC2_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DAT5__USDHC2_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DAT6__USDHC2_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DAT7__USDHC2_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- };
- imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
- usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
- return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
- }
- int board_usb_phy_mode(int port)
- {
- return USB_INIT_DEVICE;
- }
- /* I2C1 for PMIC */
- #define I2C_PMIC 0
- #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
- struct i2c_pads_info i2c_pad_info1 = {
- .sda = {
- .i2c_mode = MX6_PAD_I2C1_SDA__I2C1_SDA | PC,
- .gpio_mode = MX6_PAD_I2C1_SDA__GPIO_3_13 | PC,
- .gp = IMX_GPIO_NR(3, 13),
- },
- .scl = {
- .i2c_mode = MX6_PAD_I2C1_SCL__I2C1_SCL | PC,
- .gpio_mode = MX6_PAD_I2C1_SCL__GPIO_3_12 | PC,
- .gp = IMX_GPIO_NR(3, 12),
- },
- };
- static int power_max77696_init(unsigned char bus)
- {
- static const char name[] = "MAX77696";
- struct pmic *p = pmic_alloc();
- if (!p) {
- printf("%s: POWER allocation error!\n", __func__);
- return -ENOMEM;
- }
- p->name = name;
- p->interface = PMIC_I2C;
- p->number_of_regs = PMIC_NUM_OF_REGS;
- p->hw.i2c.addr = CONFIG_POWER_MAX77696_I2C_ADDR;
- p->hw.i2c.tx_num = 1;
- p->bus = bus;
- return 0;
- }
- int power_init_board(void)
- {
- struct pmic *p;
- int ret;
- unsigned int reg;
- ret = power_max77696_init(I2C_PMIC);
- if (ret)
- return ret;
- p = pmic_get("MAX77696");
- if (!p)
- return -EINVAL;
- ret = pmic_reg_read(p, CID, ®);
- if (ret)
- return ret;
- printf("PMIC: MAX77696 detected, rev=0x%x\n", reg);
- return pmic_probe(p);
- }
- int board_early_init_f(void)
- {
- setup_iomux_uart();
- return 0;
- }
- int board_init(void)
- {
- /* address of boot parameters */
- gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
- setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
- return 0;
- }
- int board_late_init(void)
- {
- #ifdef CONFIG_HW_WATCHDOG
- hw_watchdog_init();
- #endif
- return 0;
- }
- int checkboard(void)
- {
- puts("Board: WaRP Board\n");
- return 0;
- }
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