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![Stefan Agner](/assets/img/avatar_default.png)
Use the external PMIC Ricoh RN5T567 to reliably restart the system. Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
413 lines
11 KiB
C
413 lines
11 KiB
C
/*
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* Copyright (C) 2016 Toradex AG
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <asm/arch/clock.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/mx7-pins.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/gpio.h>
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#include <asm/imx-common/boot_mode.h>
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#include <asm/imx-common/iomux-v3.h>
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#include <asm/io.h>
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#include <common.h>
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#include <dm.h>
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#include <dm/platform_data/serial_mxc.h>
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#include <fsl_esdhc.h>
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#include <linux/sizes.h>
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#include <mmc.h>
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#include <miiphy.h>
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#include <netdev.h>
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#include <power/pmic.h>
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#include <power/rn5t567_pmic.h>
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#include <usb/ehci-ci.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define UART_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | \
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PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS)
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#define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
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PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
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#define ENET_PAD_CTRL (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM)
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#define ENET_PAD_CTRL_MII (PAD_CTL_DSE_3P3V_32OHM)
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#define ENET_RX_PAD_CTRL (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM)
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#define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_PU100KOHM | \
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PAD_CTL_DSE_3P3V_49OHM)
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#define NAND_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
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#define NAND_PAD_READY0_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU5KOHM)
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int dram_init(void)
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{
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gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
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return 0;
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}
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static iomux_v3_cfg_t const uart1_pads[] = {
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MX7D_PAD_UART1_RX_DATA__UART1_DTE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX7D_PAD_UART1_TX_DATA__UART1_DTE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX7D_PAD_SAI2_TX_BCLK__UART1_DTE_CTS | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX7D_PAD_SAI2_TX_SYNC__UART1_DTE_RTS | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static iomux_v3_cfg_t const usdhc1_pads[] = {
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MX7D_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD1_DATA0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD1_DATA1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD1_DATA2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD1_DATA3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_GPIO1_IO00__GPIO1_IO0 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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#ifdef CONFIG_NAND_MXS
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static iomux_v3_cfg_t const gpmi_pads[] = {
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MX7D_PAD_SD3_DATA0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_DATA1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_DATA2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_DATA3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_DATA4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_DATA5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_DATA6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_DATA7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_CLK__NAND_CLE | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_CMD__NAND_ALE | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_STROBE__NAND_RE_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SD3_RESET_B__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SAI1_RX_DATA__NAND_CE1_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SAI1_TX_BCLK__NAND_CE0_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX7D_PAD_SAI1_TX_DATA__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_READY0_CTRL),
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};
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static void setup_gpmi_nand(void)
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{
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imx_iomux_v3_setup_multiple_pads(gpmi_pads, ARRAY_SIZE(gpmi_pads));
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/* NAND_USDHC_BUS_CLK is set in rom */
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set_clk_nand();
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}
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#endif
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static iomux_v3_cfg_t const usdhc3_emmc_pads[] = {
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MX7D_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_DATA0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_DATA1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_DATA2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_DATA3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_DATA4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_DATA5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_DATA6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_DATA7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_STROBE__SD3_STROBE | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX7D_PAD_SD3_RESET_B__GPIO6_IO11 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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};
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#ifdef CONFIG_VIDEO_MXS
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static iomux_v3_cfg_t const lcd_pads[] = {
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MX7D_PAD_LCD_CLK__LCD_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_ENABLE__LCD_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_HSYNC__LCD_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_VSYNC__LCD_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA00__LCD_DATA0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA01__LCD_DATA1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA02__LCD_DATA2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA03__LCD_DATA3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA04__LCD_DATA4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA05__LCD_DATA5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA06__LCD_DATA6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA07__LCD_DATA7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA08__LCD_DATA8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA09__LCD_DATA9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA10__LCD_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA11__LCD_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA12__LCD_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA13__LCD_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA14__LCD_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA15__LCD_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA16__LCD_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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MX7D_PAD_LCD_DATA17__LCD_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
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};
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static iomux_v3_cfg_t const backlight_pads[] = {
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/* Backlight On */
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MX7D_PAD_SD1_WP__GPIO5_IO1 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* Backlight PWM<A> (multiplexed pin) */
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MX7D_PAD_GPIO1_IO08__GPIO1_IO8 | MUX_PAD_CTRL(NO_PAD_CTRL),
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MX7D_PAD_ECSPI2_MOSI__GPIO4_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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#define GPIO_BL_ON IMX_GPIO_NR(5, 1)
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#define GPIO_PWM_A IMX_GPIO_NR(1, 8)
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static int setup_lcd(void)
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{
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imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
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imx_iomux_v3_setup_multiple_pads(backlight_pads, ARRAY_SIZE(backlight_pads));
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/* Set BL_ON */
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gpio_request(GPIO_BL_ON, "BL_ON");
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gpio_direction_output(GPIO_BL_ON, 1);
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/* Set PWM<A> to full brightness (assuming inversed polarity) */
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gpio_request(GPIO_PWM_A, "PWM<A>");
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gpio_direction_output(GPIO_PWM_A, 0);
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return 0;
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}
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#endif
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#ifdef CONFIG_FEC_MXC
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static iomux_v3_cfg_t const fec1_pads[] = {
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#ifndef CONFIG_COLIBRI_IMX7_EXT_PHYCLK
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MX7D_PAD_GPIO1_IO12__CCM_ENET_REF_CLK1 | MUX_PAD_CTRL(ENET_PAD_CTRL) | MUX_MODE_SION,
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#else
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MX7D_PAD_GPIO1_IO12__CCM_ENET_REF_CLK1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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#endif
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MX7D_PAD_SD2_CD_B__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
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MX7D_PAD_SD2_WP__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
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MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
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MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
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MX7D_PAD_ENET1_RGMII_RXC__ENET1_RX_ER | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
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MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
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MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
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};
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static void setup_iomux_fec(void)
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{
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imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
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}
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#endif
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static void setup_iomux_uart(void)
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{
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imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
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}
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#ifdef CONFIG_FSL_ESDHC
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#define USDHC1_CD_GPIO IMX_GPIO_NR(1, 0)
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static struct fsl_esdhc_cfg usdhc_cfg[] = {
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{USDHC1_BASE_ADDR, 0, 4},
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};
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int board_mmc_getcd(struct mmc *mmc)
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{
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struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
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int ret = 0;
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switch (cfg->esdhc_base) {
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case USDHC1_BASE_ADDR:
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ret = !gpio_get_value(USDHC1_CD_GPIO);
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break;
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}
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return ret;
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}
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int board_mmc_init(bd_t *bis)
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{
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int i, ret;
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/* USDHC1 is mmc0 */
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for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
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switch (i) {
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case 0:
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imx_iomux_v3_setup_multiple_pads(
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usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
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gpio_request(USDHC1_CD_GPIO, "usdhc1_cd");
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gpio_direction_input(USDHC1_CD_GPIO);
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
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break;
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default:
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printf("Warning: you configured more USDHC controllers"
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"(%d) than supported by the board\n", i + 1);
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return -EINVAL;
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}
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ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
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if (ret)
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return ret;
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}
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return 0;
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}
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#endif
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#ifdef CONFIG_FEC_MXC
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int board_eth_init(bd_t *bis)
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{
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int ret;
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setup_iomux_fec();
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ret = fecmxc_initialize_multi(bis, 0,
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CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
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if (ret)
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printf("FEC1 MXC: %s:failed\n", __func__);
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return ret;
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}
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static int setup_fec(void)
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{
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struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
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= (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
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#ifndef CONFIG_COLIBRI_IMX7_EXT_PHYCLK
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/*
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* Use 50M anatop REF_CLK1 for ENET1, clear gpr1[13], set gpr1[17]
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* and output it on the pin
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*/
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clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
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IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK,
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IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK);
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#else
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/* Use 50M external CLK for ENET1, set gpr1[13], clear gpr1[17] */
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clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
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IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK,
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IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK);
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#endif
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return set_clk_enet(ENET_50MHz);
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}
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int board_phy_config(struct phy_device *phydev)
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{
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if (phydev->drv->config)
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phydev->drv->config(phydev);
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return 0;
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}
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#endif
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int board_early_init_f(void)
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{
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setup_iomux_uart();
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return 0;
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}
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int board_init(void)
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{
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/* address of boot parameters */
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gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
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#ifdef CONFIG_FEC_MXC
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setup_fec();
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#endif
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#ifdef CONFIG_NAND_MXS
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setup_gpmi_nand();
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#endif
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#ifdef CONFIG_VIDEO_MXS
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setup_lcd();
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#endif
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return 0;
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}
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#ifdef CONFIG_CMD_BMODE
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static const struct boot_mode board_boot_modes[] = {
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/* 4 bit bus width */
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{"nand", MAKE_CFGVAL(0x40, 0x34, 0x00, 0x00)},
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{"sd1", MAKE_CFGVAL(0x10, 0x10, 0x00, 0x00)},
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{NULL, 0},
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};
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#endif
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int board_late_init(void)
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{
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#ifdef CONFIG_CMD_BMODE
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add_board_boot_modes(board_boot_modes);
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#endif
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return 0;
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}
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#ifdef CONFIG_DM_PMIC
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int power_init_board(void)
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{
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struct udevice *dev;
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int reg, ver;
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int ret;
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ret = pmic_get("rn5t567", &dev);
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if (ret)
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return ret;
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ver = pmic_reg_read(dev, RN5T567_LSIVER);
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reg = pmic_reg_read(dev, RN5T567_OTPVER);
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printf("PMIC: RN5T567 LSIVER=0x%02x OTPVER=0x%02x\n", ver, reg);
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/* set judge and press timer of N_OE to minimal values */
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pmic_clrsetbits(dev, RN5T567_NOETIMSETCNT, 0x7, 0);
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return 0;
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}
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void reset_cpu(ulong addr)
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{
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struct udevice *dev;
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pmic_get("rn5t567", &dev);
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/* Use PMIC to reset, set REPWRTIM to 0 and REPWRON to 1 */
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pmic_reg_write(dev, RN5T567_REPCNT, 0x1);
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pmic_reg_write(dev, RN5T567_SLPCNT, 0x1);
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/*
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* Re-power factor detection on PMIC side is not instant. 1ms
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* proved to be enough time until reset takes effect.
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*/
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mdelay(1);
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}
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#endif
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int checkboard(void)
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{
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|
printf("Model: Toradex Colibri iMX7%c\n",
|
|
is_cpu_type(MXC_CPU_MX7D) ? 'D' : 'S');
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_USB_EHCI_MX7
|
|
static iomux_v3_cfg_t const usb_otg2_pads[] = {
|
|
MX7D_PAD_UART3_CTS_B__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
};
|
|
|
|
int board_ehci_hcd_init(int port)
|
|
{
|
|
switch (port) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
if (is_cpu_type(MXC_CPU_MX7S))
|
|
return -ENODEV;
|
|
|
|
imx_iomux_v3_setup_multiple_pads(usb_otg2_pads,
|
|
ARRAY_SIZE(usb_otg2_pads));
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|