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|
/*
* Copyright (C) 2014-2015 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx7-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
#include <asm/imx-common/boot_mode.h>
#include <asm/io.h>
#include <linux/sizes.h>
#include <common.h>
#include <fsl_esdhc.h>
#include <mmc.h>
#include <miiphy.h>
#include <netdev.h>
#include <power/pmic.h>
#include <power/pfuze3000_pmic.h>
#include "../common/pfuze.h"
#include <asm/arch/crm_regs.h>
#include <asm/imx-common/video.h>
#ifdef CONFIG_VIDEO_MXS
#include <linux/fb.h>
#endif
#if defined(CONFIG_MXC_EPDC)
#include <lcd.h>
#include <mxc_epdc_fb.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
#define UART_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | \
PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS)
#define ENET_PAD_CTRL (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_98OHM)
#define ENET_PAD_CTRL_MII (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_98OHM)
#define ENET_RX_PAD_CTRL (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_98OHM)
#define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_PU100KOHM | \
PAD_CTL_DSE_3P3V_49OHM)
#define QSPI_PAD_CTRL \
(PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
#define SPI_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
#define EPDC_PAD_CTRL 0x0
int dram_init(void)
{
gd->ram_size = PHYS_SDRAM_SIZE;
return 0;
}
static iomux_v3_cfg_t const uart1_pads[] = {
MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
};
#ifdef CONFIG_VIDEO_MXS
static iomux_v3_cfg_t const lcd_pads[] = {
MX7D_PAD_LCD_CLK__LCD_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_ENABLE__LCD_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_HSYNC__LCD_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_VSYNC__LCD_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA00__LCD_DATA0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA01__LCD_DATA1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA02__LCD_DATA2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA03__LCD_DATA3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA04__LCD_DATA4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA05__LCD_DATA5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA06__LCD_DATA6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA07__LCD_DATA7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA08__LCD_DATA8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA09__LCD_DATA9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA10__LCD_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA11__LCD_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA12__LCD_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA13__LCD_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA14__LCD_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA15__LCD_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA16__LCD_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA17__LCD_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA18__LCD_DATA18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA19__LCD_DATA19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA20__LCD_DATA20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA21__LCD_DATA21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA22__LCD_DATA22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_DATA23__LCD_DATA23 | MUX_PAD_CTRL(LCD_PAD_CTRL),
MX7D_PAD_LCD_RESET__GPIO3_IO4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
};
static iomux_v3_cfg_t const pwm_pads[] = {
/* Use GPIO for Brightness adjustment, duty cycle = period */
MX7D_PAD_GPIO1_IO01__GPIO1_IO1 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
void do_enable_parallel_lcd(struct display_info_t const *dev)
{
imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
imx_iomux_v3_setup_multiple_pads(pwm_pads, ARRAY_SIZE(pwm_pads));
/* Power up the LCD */
gpio_request(IMX_GPIO_NR(3, 4), "lcd_pwr");
gpio_direction_output(IMX_GPIO_NR(3, 4) , 1);
/* Set Brightness to high */
gpio_request(IMX_GPIO_NR(1, 1), "lcd_backlight");
gpio_direction_output(IMX_GPIO_NR(1, 1) , 1);
}
struct display_info_t const displays[] = {{
.bus = ELCDIF1_IPS_BASE_ADDR,
.addr = 0,
.pixfmt = 24,
.detect = NULL,
.enable = do_enable_parallel_lcd,
.mode = {
.name = "MCIMX28LCD",
.xres = 800,
.yres = 480,
.pixclock = 29850,
.left_margin = 89,
.right_margin = 164,
.upper_margin = 23,
.lower_margin = 10,
.hsync_len = 10,
.vsync_len = 10,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED
} } };
size_t display_count = ARRAY_SIZE(displays);
#endif
static iomux_v3_cfg_t const per_rst_pads[] = {
MX7D_PAD_GPIO1_IO03__GPIO1_IO3 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static iomux_v3_cfg_t const wdog_pads[] = {
MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL),
};
#ifdef CONFIG_FEC_MXC
static iomux_v3_cfg_t const fec1_pads[] = {
MX7D_PAD_GPIO1_IO11__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
MX7D_PAD_GPIO1_IO10__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_RD2__ENET1_RGMII_RD2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_RD3__ENET1_RGMII_RD3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_RXC__ENET1_RGMII_RXC | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_TD2__ENET1_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_TD3__ENET1_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX7D_PAD_ENET1_RGMII_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX7D_PAD_ENET1_TX_CLK__CCM_ENET_REF_CLK1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
};
static void setup_iomux_fec1(void)
{
imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
}
#endif
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
}
#ifdef CONFIG_FSL_QSPI
#ifndef CONFIG_DM_SPI
static iomux_v3_cfg_t const quadspi_pads[] = {
MX7D_PAD_EPDC_DATA00__QSPI_A_DATA0 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA01__QSPI_A_DATA1 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA02__QSPI_A_DATA2 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA03__QSPI_A_DATA3 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA04__QSPI_A_DQS | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA05__QSPI_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA06__QSPI_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA07__QSPI_A_SS1_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA08__QSPI_B_DATA0 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA09__QSPI_B_DATA1 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA10__QSPI_B_DATA2 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA11__QSPI_B_DATA3 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA12__QSPI_B_DQS | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA13__QSPI_B_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA14__QSPI_B_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA15__QSPI_B_SS1_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),
};
#endif
int board_qspi_init(void)
{
#ifndef CONFIG_DM_SPI
/* Set the iomux */
imx_iomux_v3_setup_multiple_pads(quadspi_pads, ARRAY_SIZE(quadspi_pads));
#endif
/* Set the clock */
set_clk_qspi();
return 0;
}
#endif
#ifdef CONFIG_FSL_ESDHC
int mmc_map_to_kernel_blk(int dev_no)
{
return dev_no;
}
int board_mmc_get_env_dev(int devno)
{
return devno;
}
#endif
#ifdef CONFIG_FEC_MXC
int board_eth_init(bd_t *bis)
{
int ret;
setup_iomux_fec1();
ret = fecmxc_initialize_multi(bis, 0,
CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
if (ret)
printf("FEC1 MXC: %s:failed\n", __func__);
return 0;
}
static int setup_fec(void)
{
struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
= (struct iomuxc_gpr_base_regs *) IOMUXC_GPR_BASE_ADDR;
int ret;
/* Use 125M anatop REF_CLK1 for ENET1, clear gpr1[13], gpr1[17]*/
clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
(IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK |
IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK), 0);
ret = set_clk_enet(ENET_125MHz);
if (ret)
return ret;
return 0;
}
int board_phy_config(struct phy_device *phydev)
{
/* Enable 1.8V(SEL_1P5_1P8_POS_REG) on
Phy control debug reg 0 */
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
/* rgmii tx clock delay enable */
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
#endif
#ifdef CONFIG_MXC_SPI
iomux_v3_cfg_t const ecspi1_pads[] = {
MX7D_PAD_ECSPI1_SCLK__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
MX7D_PAD_ECSPI1_MOSI__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
MX7D_PAD_ECSPI1_MISO__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
/* CS0 */
MX7D_PAD_ECSPI1_SS0__GPIO4_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
void setup_spinor(void)
{
imx_iomux_v3_setup_multiple_pads(ecspi1_pads,
ARRAY_SIZE(ecspi1_pads));
gpio_request(IMX_GPIO_NR(4, 19), "ecspi1_cs");
gpio_direction_output(IMX_GPIO_NR(4, 19), 0);
}
int board_spi_cs_gpio(unsigned bus, unsigned cs)
{
return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 19)) : -1;
}
#endif
int board_early_init_f(void)
{
setup_iomux_uart();
return 0;
}
#ifdef CONFIG_MXC_EPDC
static iomux_v3_cfg_t const epdc_enable_pads[] = {
MX7D_PAD_EPDC_DATA00__EPDC_DATA0 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_DATA01__EPDC_DATA1 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_DATA02__EPDC_DATA2 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_DATA03__EPDC_DATA3 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_DATA04__EPDC_DATA4 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_DATA05__EPDC_DATA5 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_DATA06__EPDC_DATA6 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_DATA07__EPDC_DATA7 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_SDCLK__EPDC_SDCLK | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_SDLE__EPDC_SDLE | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_SDOE__EPDC_SDOE | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_SDSHR__EPDC_SDSHR | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_SDCE0__EPDC_SDCE0 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_SDCE1__EPDC_SDCE1 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_SDCE2__EPDC_SDCE2 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_SDCE3__EPDC_SDCE3 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_GDCLK__EPDC_GDCLK | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_GDOE__EPDC_GDOE | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_GDRL__EPDC_GDRL | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_GDSP__EPDC_GDSP | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_BDR0__EPDC_BDR0 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
MX7D_PAD_EPDC_BDR1__EPDC_BDR1 | MUX_PAD_CTRL(EPDC_PAD_CTRL),
};
static iomux_v3_cfg_t const epdc_disable_pads[] = {
MX7D_PAD_EPDC_DATA00__GPIO2_IO0,
MX7D_PAD_EPDC_DATA01__GPIO2_IO1,
MX7D_PAD_EPDC_DATA02__GPIO2_IO2,
MX7D_PAD_EPDC_DATA03__GPIO2_IO3,
MX7D_PAD_EPDC_DATA04__GPIO2_IO4,
MX7D_PAD_EPDC_DATA05__GPIO2_IO5,
MX7D_PAD_EPDC_DATA06__GPIO2_IO6,
MX7D_PAD_EPDC_DATA07__GPIO2_IO7,
MX7D_PAD_EPDC_SDCLK__GPIO2_IO16,
MX7D_PAD_EPDC_SDLE__GPIO2_IO17,
MX7D_PAD_EPDC_SDOE__GPIO2_IO18,
MX7D_PAD_EPDC_SDSHR__GPIO2_IO19,
MX7D_PAD_EPDC_SDCE0__GPIO2_IO20,
MX7D_PAD_EPDC_SDCE1__GPIO2_IO21,
MX7D_PAD_EPDC_SDCE2__GPIO2_IO22,
MX7D_PAD_EPDC_SDCE3__GPIO2_IO23,
MX7D_PAD_EPDC_GDCLK__GPIO2_IO24,
MX7D_PAD_EPDC_GDOE__GPIO2_IO25,
MX7D_PAD_EPDC_GDRL__GPIO2_IO26,
MX7D_PAD_EPDC_GDSP__GPIO2_IO27,
MX7D_PAD_EPDC_BDR0__GPIO2_IO28,
MX7D_PAD_EPDC_BDR1__GPIO2_IO29,
};
vidinfo_t panel_info = {
.vl_refresh = 85,
.vl_col = 1024,
.vl_row = 758,
.vl_pixclock = 40000000,
.vl_left_margin = 12,
.vl_right_margin = 76,
.vl_upper_margin = 4,
.vl_lower_margin = 5,
.vl_hsync = 12,
.vl_vsync = 2,
.vl_sync = 0,
.vl_mode = 0,
.vl_flag = 0,
.vl_bpix = 3,
.cmap = 0,
};
struct epdc_timing_params panel_timings = {
.vscan_holdoff = 4,
.sdoed_width = 10,
.sdoed_delay = 20,
.sdoez_width = 10,
.sdoez_delay = 20,
.gdclk_hp_offs = 524,
.gdsp_offs = 327,
.gdoe_offs = 0,
.gdclk_offs = 19,
.num_ce = 1,
};
static void setup_epdc_power(void)
{
/* IOMUX_GPR1: bit30: Disable On-chip RAM EPDC Function */
struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
= (struct iomuxc_gpr_base_regs *) IOMUXC_GPR_BASE_ADDR;
clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
IOMUXC_GPR_GPR1_GPR_ENABLE_OCRAM_EPDC_MASK, 0);
/* Setup epdc voltage */
/* EPDC_PWRSTAT - GPIO2[31] for PWR_GOOD status */
imx_iomux_v3_setup_pad(MX7D_PAD_EPDC_PWR_STAT__GPIO2_IO31 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
gpio_request(IMX_GPIO_NR(2, 31), "epdc_pwrstat");
gpio_direction_input(IMX_GPIO_NR(2, 31));
/* EPDC_VCOM0 - GPIO4[14] for VCOM control */
imx_iomux_v3_setup_pad(MX7D_PAD_I2C4_SCL__GPIO4_IO14 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set as output */
gpio_request(IMX_GPIO_NR(4, 14), "epdc_vcom0");
gpio_direction_output(IMX_GPIO_NR(4, 14), 1);
/* EPDC_PWRWAKEUP - GPIO4[23] for EPD PMIC WAKEUP */
imx_iomux_v3_setup_pad(MX7D_PAD_ECSPI2_SS0__GPIO4_IO23 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set as output */
gpio_request(IMX_GPIO_NR(4, 23), "epdc_pwrwakeup");
gpio_direction_output(IMX_GPIO_NR(4, 23), 1);
/* EPDC_PWRCTRL0 - GPIO4[20] for EPD PWR CTL0 */
imx_iomux_v3_setup_pad(MX7D_PAD_ECSPI2_SCLK__GPIO4_IO20 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set as output */
gpio_request(IMX_GPIO_NR(4, 20), "epdc_pwrctrl0");
gpio_direction_output(IMX_GPIO_NR(4, 20), 1);
}
static void epdc_enable_pins(void)
{
/* epdc iomux settings */
imx_iomux_v3_setup_multiple_pads(epdc_enable_pads,
ARRAY_SIZE(epdc_enable_pads));
}
static void epdc_disable_pins(void)
{
/* Configure MUX settings for EPDC pins to GPIO and drive to 0 */
imx_iomux_v3_setup_multiple_pads(epdc_disable_pads,
ARRAY_SIZE(epdc_disable_pads));
}
static void setup_epdc(void)
{
/*** epdc Maxim PMIC settings ***/
/* EPDC_PWRSTAT - GPIO2[31] for PWR_GOOD status */
imx_iomux_v3_setup_pad(MX7D_PAD_EPDC_PWR_STAT__GPIO2_IO31 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* EPDC_VCOM0 - GPIO4[14] for VCOM control */
imx_iomux_v3_setup_pad(MX7D_PAD_I2C4_SCL__GPIO4_IO14 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* EPDC_PWRWAKEUP - GPIO4[23] for EPD PMIC WAKEUP */
imx_iomux_v3_setup_pad(MX7D_PAD_ECSPI2_SS0__GPIO4_IO23 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* EPDC_PWRCTRL0 - GPIO4[20] for EPD PWR CTL0 */
imx_iomux_v3_setup_pad(MX7D_PAD_ECSPI2_SCLK__GPIO4_IO20 |
MUX_PAD_CTRL(EPDC_PAD_CTRL));
/* Set pixel clock rates for EPDC in clock.c */
panel_info.epdc_data.wv_modes.mode_init = 0;
panel_info.epdc_data.wv_modes.mode_du = 1;
panel_info.epdc_data.wv_modes.mode_gc4 = 3;
panel_info.epdc_data.wv_modes.mode_gc8 = 2;
panel_info.epdc_data.wv_modes.mode_gc16 = 2;
panel_info.epdc_data.wv_modes.mode_gc32 = 2;
panel_info.epdc_data.epdc_timings = panel_timings;
setup_epdc_power();
}
void epdc_power_on(void)
{
unsigned int reg;
struct gpio_regs *gpio_regs = (struct gpio_regs *)GPIO2_BASE_ADDR;
/* Set EPD_PWR_CTL0 to high - enable EINK_VDD (3.15) */
gpio_set_value(IMX_GPIO_NR(4, 20), 1);
udelay(1000);
/* Enable epdc signal pin */
epdc_enable_pins();
/* Set PMIC Wakeup to high - enable Display power */
gpio_set_value(IMX_GPIO_NR(4, 23), 1);
/* Wait for PWRGOOD == 1 */
while (1) {
reg = readl(&gpio_regs->gpio_psr);
if (!(reg & (1 << 31)))
break;
udelay(100);
}
/* Enable VCOM */
gpio_set_value(IMX_GPIO_NR(4, 14), 1);
udelay(500);
}
void epdc_power_off(void)
{
/* Set PMIC Wakeup to low - disable Display power */
gpio_set_value(IMX_GPIO_NR(4, 23), 0);
/* Disable VCOM */
gpio_set_value(IMX_GPIO_NR(4, 14), 0);
epdc_disable_pins();
/* Set EPD_PWR_CTL0 to low - disable EINK_VDD (3.15) */
gpio_set_value(IMX_GPIO_NR(4, 20), 0);
}
#endif
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
/* Reset peripherals */
imx_iomux_v3_setup_multiple_pads(per_rst_pads, ARRAY_SIZE(per_rst_pads));
gpio_request(IMX_GPIO_NR(1, 3), "per_rst");
gpio_direction_output(IMX_GPIO_NR(1, 3) , 0);
udelay(500);
gpio_set_value(IMX_GPIO_NR(1, 3), 1);
#ifdef CONFIG_FEC_MXC
setup_fec();
#endif
#ifdef CONFIG_MXC_SPI
setup_spinor();
#endif
#ifdef CONFIG_FSL_QSPI
board_qspi_init();
#endif
#ifdef CONFIG_MXC_EPDC
setup_epdc();
#endif
return 0;
}
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
/* 4 bit bus width */
{"sd1", MAKE_CFGVAL(0x10, 0x12, 0x00, 0x00)},
{"sd2", MAKE_CFGVAL(0x10, 0x16, 0x00, 0x00)},
{"emmc", MAKE_CFGVAL(0x10, 0x2a, 0x00, 0x00)},
{"qspi", MAKE_CFGVAL(0x00, 0x40, 0x00, 0x00)},
{NULL, 0},
};
#endif
#ifdef CONFIG_DM_PMIC
int power_init_board(void)
{
struct udevice *dev;
int ret, dev_id, rev_id, reg;
ret = pmic_get("pfuze3000", &dev);
if (ret == -ENODEV)
return 0;
if (ret != 0)
return ret;
dev_id = pmic_reg_read(dev, PFUZE3000_DEVICEID);
rev_id = pmic_reg_read(dev, PFUZE3000_REVID);
printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", dev_id, rev_id);
/* disable Low Power Mode during standby mode */
reg = pmic_reg_read(dev, PFUZE3000_LDOGCTL);
reg |= 0x1;
pmic_reg_write(dev, PFUZE3000_LDOGCTL, reg);
/* SW1A/1B mode set to APS/APS */
reg = 0x8;
pmic_reg_write(dev, PFUZE3000_SW1AMODE, reg);
pmic_reg_write(dev, PFUZE3000_SW1BMODE, reg);
/* SW1A/1B standby voltage set to 0.975V */
reg = 0xb;
pmic_reg_write(dev, PFUZE3000_SW1ASTBY, reg);
pmic_reg_write(dev, PFUZE3000_SW1BSTBY, reg);
/* below are for LPSR mode support */
reg = pmic_reg_read(dev, PFUZE3000_SW3MODE);
reg |= 0x20;
pmic_reg_write(dev, PFUZE3000_SW3MODE, reg);
reg = pmic_reg_read(dev, PFUZE3000_VLDO1CTL);
reg |= 0x80;
pmic_reg_write(dev, PFUZE3000_VLDO1CTL, reg);
reg = pmic_reg_read(dev, PFUZE3000_VLDO3CTL);
reg |= 0x80;
pmic_reg_write(dev, PFUZE3000_VLDO3CTL, reg);
pmic_reg_read(dev, PFUZE3000_SW2MODE);
reg |= 0x20;
pmic_reg_write(dev, PFUZE3000_SW2MODE, reg);
/* set SW1B normal voltage to 0.975V */
reg = pmic_reg_read(dev, PFUZE3000_SW1BVOLT);
reg &= ~0x1f;
reg |= PFUZE3000_SW1AB_SETP(975);
pmic_reg_write(dev, PFUZE3000_SW1BVOLT, reg);
return 0;
}
#endif
int board_late_init(void)
{
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
#ifdef CONFIG_ENV_IS_IN_MMC
board_late_mmc_env_init();
#endif
imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
set_wdog_reset((struct wdog_regs *)WDOG1_BASE_ADDR);
return 0;
}
u32 get_board_rev(void)
{
return get_cpu_rev();
}
int checkboard(void)
{
puts("Board: MX7D 12x12 LPDDR3 ARM2\n");
return 0;
}
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