mirror of
https://github.com/brain-hackers/u-boot-brain
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69cc7dbf1f
Add support for Technexion's PICO-IMX6UL-EMMC board. For information about this board, please visit: http://www.technexion.com/products/pico/pico-som/pico-imx6-emmc Signed-off-by: Richard Hu <richard.hu@technexion.com> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/*
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* Copyright (C) 2015 Technexion Ltd.
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*
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* Author: Richard Hu <richard.hu@technexion.com>
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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/iomux.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/mx6-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/iomux-v3.h>
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#include <asm/io.h>
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#include <common.h>
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#include <fsl_esdhc.h>
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#include <linux/sizes.h>
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#include <usb.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \
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PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define OTG_ID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
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PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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int dram_init(void)
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{
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gd->ram_size = imx_ddr_size();
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return 0;
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}
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static iomux_v3_cfg_t const uart6_pads[] = {
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MX6_PAD_CSI_MCLK__UART6_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_CSI_PIXCLK__UART6_DCE_RX | 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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MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_NAND_READY_B__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_NAND_CE0_B__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_NAND_CE1_B__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_NAND_CLE__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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};
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static iomux_v3_cfg_t const usb_otg_pad[] = {
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MX6_PAD_GPIO1_IO00__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTG_ID_PAD_CTRL),
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};
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static void setup_iomux_uart(void)
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{
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imx_iomux_v3_setup_multiple_pads(uart6_pads, ARRAY_SIZE(uart6_pads));
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}
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static void setup_usb(void)
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{
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imx_iomux_v3_setup_multiple_pads(usb_otg_pad, ARRAY_SIZE(usb_otg_pad));
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}
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static struct fsl_esdhc_cfg usdhc_cfg[1] = {
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{USDHC1_BASE_ADDR},
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};
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int board_mmc_getcd(struct mmc *mmc)
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{
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return 1;
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}
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int board_mmc_init(bd_t *bis)
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{
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imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
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return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
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}
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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_usb_phy_mode(int port)
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{
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return USB_INIT_DEVICE;
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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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setup_usb();
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return 0;
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}
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int checkboard(void)
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{
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puts("Board: PICO-IMX6UL-EMMC\n");
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return 0;
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}
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