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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2018-2019 Toradex AG
- */
- #include <common.h>
- #include <init.h>
- #include <linux/delay.h>
- #include <asm/arch/clock.h>
- #include <asm/arch/crm_regs.h>
- #include <asm/arch/imx-regs.h>
- #include <asm/arch-mx6/clock.h>
- #include <asm/arch-mx6/imx-regs.h>
- #include <asm/arch-mx6/mx6ull_pins.h>
- #include <asm/arch/sys_proto.h>
- #include <asm/gpio.h>
- #include <asm/mach-imx/boot_mode.h>
- #include <asm/mach-imx/iomux-v3.h>
- #include <asm/io.h>
- #include <dm.h>
- #include <dm/platform_data/serial_mxc.h>
- #include <env.h>
- #include <fdt_support.h>
- #include <imx_thermal.h>
- #include <jffs2/load_kernel.h>
- #include <linux/sizes.h>
- #include <miiphy.h>
- #include <mtd_node.h>
- #include <netdev.h>
- #include "../common/tdx-common.h"
- #include "../common/tdx-cfg-block.h"
- DECLARE_GLOBAL_DATA_PTR;
- #define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
- PAD_CTL_DSE_48ohm)
- #define MX6_PAD_SNVS_PMIC_STBY_REQ_ADDR 0x2290040
- #define NAND_PAD_CTRL (PAD_CTL_DSE_48ohm | PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
- #define NAND_PAD_READY0_CTRL (PAD_CTL_DSE_48ohm | PAD_CTL_PUS_22K_UP)
- int dram_init(void)
- {
- gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
- return 0;
- }
- #ifdef CONFIG_NAND_MXS
- static void setup_gpmi_nand(void)
- {
- setup_gpmi_io_clk((3 << MXC_CCM_CSCDR1_BCH_PODF_OFFSET) |
- (3 << MXC_CCM_CSCDR1_GPMI_PODF_OFFSET));
- }
- #endif /* CONFIG_NAND_MXS */
- #ifdef CONFIG_DM_VIDEO
- static iomux_v3_cfg_t const backlight_pads[] = {
- /* Backlight On */
- MX6_PAD_JTAG_TMS__GPIO1_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
- /* Backlight PWM<A> (multiplexed pin) */
- MX6_PAD_NAND_WP_B__GPIO4_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
- };
- #define GPIO_BL_ON IMX_GPIO_NR(1, 11)
- #define GPIO_PWM_A IMX_GPIO_NR(4, 11)
- static int setup_lcd(void)
- {
- imx_iomux_v3_setup_multiple_pads(backlight_pads, ARRAY_SIZE(backlight_pads));
- /* Set BL_ON */
- gpio_request(GPIO_BL_ON, "BL_ON");
- gpio_direction_output(GPIO_BL_ON, 1);
- /* Set PWM<A> to full brightness (assuming inversed polarity) */
- gpio_request(GPIO_PWM_A, "PWM<A>");
- gpio_direction_output(GPIO_PWM_A, 0);
- return 0;
- }
- #endif
- #ifdef CONFIG_FEC_MXC
- static int setup_fec(void)
- {
- struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
- int ret;
- /* provide the PHY clock from the i.MX 6 */
- ret = enable_fec_anatop_clock(1, ENET_50MHZ);
- if (ret)
- return ret;
- /* Use 50M anatop REF_CLK and output it on ENET2_TX_CLK */
- clrsetbits_le32(&iomuxc_regs->gpr[1],
- IOMUX_GPR1_FEC2_CLOCK_MUX2_SEL_MASK,
- IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
- /* give new Ethernet PHY power save mode circuitry time to settle */
- mdelay(300);
- return 0;
- }
- int board_phy_config(struct phy_device *phydev)
- {
- if (phydev->drv->config)
- phydev->drv->config(phydev);
- return 0;
- }
- #endif /* CONFIG_FEC_MXC */
- int board_init(void)
- {
- /* address of boot parameters */
- gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
- #ifdef CONFIG_FEC_MXC
- setup_fec();
- #endif
- #ifdef CONFIG_NAND_MXS
- setup_gpmi_nand();
- #endif
- return 0;
- }
- #ifdef CONFIG_CMD_BMODE
- /* TODO */
- static const struct boot_mode board_boot_modes[] = {
- /* 4 bit bus width */
- {"nand", MAKE_CFGVAL(0x40, 0x34, 0x00, 0x00)},
- {"sd1", MAKE_CFGVAL(0x10, 0x10, 0x00, 0x00)},
- {NULL, 0},
- };
- #endif
- int board_late_init(void)
- {
- #ifdef CONFIG_TDX_CFG_BLOCK
- /*
- * If we have a valid config block and it says we are a module with
- * Wi-Fi/Bluetooth make sure we use the -wifi device tree.
- */
- if (tdx_hw_tag.prodid == COLIBRI_IMX6ULL_WIFI_BT_IT ||
- tdx_hw_tag.prodid == COLIBRI_IMX6ULL_WIFI_BT)
- env_set("variant", "-wifi");
- #endif
- /*
- * Disable output driver of PAD CCM_PMIC_STBY_REQ. This prevents the
- * SOC to request for a lower voltage during sleep. This is necessary
- * because the voltage is changing too slow for the SOC to wake up
- * properly.
- */
- __raw_writel(0x8080, MX6_PAD_SNVS_PMIC_STBY_REQ_ADDR);
- #ifdef CONFIG_CMD_BMODE
- add_board_boot_modes(board_boot_modes);
- #endif
- #ifdef CONFIG_CMD_USB_SDP
- if (is_boot_from_usb()) {
- printf("Serial Downloader recovery mode, using sdp command\n");
- env_set("bootdelay", "0");
- env_set("bootcmd", "sdp 0");
- }
- #endif /* CONFIG_CMD_USB_SDP */
- #if defined(CONFIG_DM_VIDEO)
- setup_lcd();
- #endif
- return 0;
- }
- int checkboard(void)
- {
- printf("Model: Toradex Colibri iMX6ULL\n");
- return 0;
- }
- #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
- int ft_board_setup(void *blob, struct bd_info *bd)
- {
- #if defined(CONFIG_FDT_FIXUP_PARTITIONS)
- static struct node_info nodes[] = {
- { "fsl,imx6ull-gpmi-nand", MTD_DEV_TYPE_NAND, },
- { "fsl,imx6q-gpmi-nand", MTD_DEV_TYPE_NAND, },
- };
- /* Update partition nodes using info from mtdparts env var */
- puts(" Updating MTD partitions...\n");
- fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
- #endif
- return ft_common_board_setup(blob, bd);
- }
- #endif
- static struct mxc_serial_platdata mxc_serial_plat = {
- .reg = (struct mxc_uart *)UART1_BASE,
- .use_dte = 1,
- };
- U_BOOT_DEVICE(mxc_serial) = {
- .name = "serial_mxc",
- .plat = &mxc_serial_plat,
- };
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