diff options
Diffstat (limited to 'roms/u-boot/board/toradex/colibri_imx7/colibri_imx7.c')
| -rw-r--r-- | roms/u-boot/board/toradex/colibri_imx7/colibri_imx7.c | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/roms/u-boot/board/toradex/colibri_imx7/colibri_imx7.c b/roms/u-boot/board/toradex/colibri_imx7/colibri_imx7.c new file mode 100644 index 000000000..301b07d5b --- /dev/null +++ b/roms/u-boot/board/toradex/colibri_imx7/colibri_imx7.c @@ -0,0 +1,366 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2016-2018 Toradex AG + */ + +#include <common.h> +#include <cpu_func.h> +#include <init.h> +#include <net.h> +#include <asm/arch/clock.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/mx7-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/io.h> +#include <common.h> +#include <dm.h> +#include <dm/platform_data/serial_mxc.h> +#include <fdt_support.h> +#include <fsl_esdhc_imx.h> +#include <jffs2/load_kernel.h> +#include <linux/delay.h> +#include <linux/sizes.h> +#include <mmc.h> +#include <miiphy.h> +#include <mtd_node.h> +#include <netdev.h> +#include <power/pmic.h> +#include <power/rn5t567_pmic.h> +#include <usb.h> +#include <usb/ehci-ci.h> +#include "../common/tdx-common.h" + +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_49OHM) +#define ENET_PAD_CTRL_MII (PAD_CTL_DSE_3P3V_32OHM) + +#define ENET_RX_PAD_CTRL (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM) + +#define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_PU100KOHM | \ + PAD_CTL_DSE_3P3V_49OHM) + +#define NAND_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_SRE_SLOW | PAD_CTL_HYS) + +#define NAND_PAD_READY0_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU5KOHM) + +#define USB_CDET_GPIO IMX_GPIO_NR(7, 14) + +int dram_init(void) +{ + gd->ram_size = get_ram_size((void *)PHYS_SDRAM, imx_ddr_size()); + + return 0; +} + +static iomux_v3_cfg_t const uart1_pads[] = { + MX7D_PAD_UART1_RX_DATA__UART1_DTE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), + MX7D_PAD_UART1_TX_DATA__UART1_DTE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), + MX7D_PAD_SAI2_TX_BCLK__UART1_DTE_CTS | MUX_PAD_CTRL(UART_PAD_CTRL), + MX7D_PAD_SAI2_TX_SYNC__UART1_DTE_RTS | MUX_PAD_CTRL(UART_PAD_CTRL), +}; + +#ifdef CONFIG_USB_EHCI_MX7 +static iomux_v3_cfg_t const usb_cdet_pads[] = { + MX7D_PAD_ENET1_CRS__GPIO7_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; +#endif + +#ifdef CONFIG_TARGET_COLIBRI_IMX7_NAND +static iomux_v3_cfg_t const gpmi_pads[] = { + MX7D_PAD_SD3_DATA0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_DATA1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_DATA2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_DATA3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_DATA4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_DATA5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_DATA6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_DATA7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_CLK__NAND_CLE | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_CMD__NAND_ALE | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_STROBE__NAND_RE_B | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SD3_RESET_B__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SAI1_RX_DATA__NAND_CE1_B | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SAI1_TX_BCLK__NAND_CE0_B | MUX_PAD_CTRL(NAND_PAD_CTRL), + MX7D_PAD_SAI1_TX_DATA__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_READY0_CTRL), +}; + +static void setup_gpmi_nand(void) +{ + imx_iomux_v3_setup_multiple_pads(gpmi_pads, ARRAY_SIZE(gpmi_pads)); + + /* NAND_USDHC_BUS_CLK is set in rom */ + set_clk_nand(); +} +#endif + +#ifdef CONFIG_DM_VIDEO +static iomux_v3_cfg_t const backlight_pads[] = { + /* Backlight On */ + MX7D_PAD_SD1_WP__GPIO5_IO1 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* Backlight PWM<A> (multiplexed pin) */ + MX7D_PAD_GPIO1_IO08__GPIO1_IO8 | MUX_PAD_CTRL(NO_PAD_CTRL), + MX7D_PAD_ECSPI2_MOSI__GPIO4_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +#define GPIO_BL_ON IMX_GPIO_NR(5, 1) +#define GPIO_PWM_A IMX_GPIO_NR(1, 8) + +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 + +/* + * Backlight off before OS handover + */ +void board_preboot_os(void) +{ +#ifdef CONFIG_DM_VIDEO + gpio_direction_output(GPIO_PWM_A, 1); + gpio_direction_output(GPIO_BL_ON, 0); +#endif +} + +static void setup_iomux_uart(void) +{ + imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); +} + +#ifdef CONFIG_FEC_MXC +static int setup_fec(void) +{ + struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs + = (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR; + +#ifndef CONFIG_COLIBRI_IMX7_EXT_PHYCLK + /* + * Use 50M anatop REF_CLK1 for ENET1, clear gpr1[13], set gpr1[17] + * and output it on the pin + */ + clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], + IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK, + IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK); +#else + /* Use 50M external CLK for ENET1, set gpr1[13], clear gpr1[17] */ + clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], + IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK, + IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK); +#endif + + return set_clk_enet(ENET_50MHZ); +} + +#endif + +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; + +#ifdef CONFIG_FEC_MXC + setup_fec(); +#endif + +#ifdef CONFIG_TARGET_COLIBRI_IMX7_NAND + setup_gpmi_nand(); +#endif + +#ifdef CONFIG_USB_EHCI_MX7 + imx_iomux_v3_setup_multiple_pads(usb_cdet_pads, ARRAY_SIZE(usb_cdet_pads)); + gpio_request(USB_CDET_GPIO, "usb-cdet-gpio"); +#endif + + return 0; +} + +#ifdef CONFIG_DM_PMIC +int power_init_board(void) +{ + struct udevice *dev; + int reg, ver; + int ret; + + + ret = pmic_get("rn5t567@33", &dev); + if (ret) + return ret; + ver = pmic_reg_read(dev, RN5T567_LSIVER); + reg = pmic_reg_read(dev, RN5T567_OTPVER); + + printf("PMIC: RN5T567 LSIVER=0x%02x OTPVER=0x%02x\n", ver, reg); + + /* set judge and press timer of N_OE to minimal values */ + pmic_clrsetbits(dev, RN5T567_NOETIMSETCNT, 0x7, 0); + + /* configure sleep slot for 3.3V Ethernet */ + reg = pmic_reg_read(dev, RN5T567_LDO1_SLOT); + reg = (reg & 0xf0) | reg >> 4; + pmic_reg_write(dev, RN5T567_LDO1_SLOT, reg); + + /* disable DCDC2 discharge to avoid backfeeding through VFB2 */ + pmic_clrsetbits(dev, RN5T567_DC2CTL, 0x2, 0); + + /* configure sleep slot for ARM rail */ + reg = pmic_reg_read(dev, RN5T567_DC2_SLOT); + reg = (reg & 0xf0) | reg >> 4; + pmic_reg_write(dev, RN5T567_DC2_SLOT, reg); + + /* disable LDO2 discharge to avoid backfeeding from +V3.3_SD */ + pmic_clrsetbits(dev, RN5T567_LDODIS1, 0x2, 0); + + return 0; +} + +void reset_cpu(void) +{ + struct udevice *dev; + + pmic_get("rn5t567@33", &dev); + + /* Use PMIC to reset, set REPWRTIM to 0 and REPWRON to 1 */ + pmic_reg_write(dev, RN5T567_REPCNT, 0x1); + pmic_reg_write(dev, RN5T567_SLPCNT, 0x1); + + /* + * Re-power factor detection on PMIC side is not instant. 1ms + * proved to be enough time until reset takes effect. + */ + mdelay(1); +} +#endif + +int checkboard(void) +{ + printf("Model: Toradex Colibri iMX7%c\n", + is_cpu_type(MXC_CPU_MX7D) ? 'D' : 'S'); + + 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_IMX_BOOTAUX) && defined(CONFIG_ARCH_FIXUP_FDT_MEMORY) + int up; + + up = arch_auxiliary_core_check_up(0); + if (up) { + int ret; + int areas = 1; + u64 start[2], size[2]; + + /* + * Reserve 1MB of memory for M4 (1MiB is also the minimum + * alignment for Linux due to MMU section size restrictions). + */ + start[0] = gd->bd->bi_dram[0].start; + size[0] = SZ_256M - SZ_1M; + + /* If needed, create a second entry for memory beyond 256M */ + if (gd->bd->bi_dram[0].size > SZ_256M) { + start[1] = gd->bd->bi_dram[0].start + SZ_256M; + size[1] = gd->bd->bi_dram[0].size - SZ_256M; + areas = 2; + } + + ret = fdt_set_usable_memory(blob, start, size, areas); + if (ret) { + eprintf("Cannot set usable memory\n"); + return ret; + } + } else { + int off; + + off = fdt_node_offset_by_compatible(blob, -1, + "fsl,imx7d-rpmsg"); + if (off > 0) + fdt_status_disabled(blob, off); + } +#endif +#if defined(CONFIG_FDT_FIXUP_PARTITIONS) + static const struct node_info nodes[] = { + { "fsl,imx7d-gpmi-nand", MTD_DEV_TYPE_NAND, }, /* NAND flash */ + { "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 + +#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; +} + +int board_usb_phy_mode(int port) +{ + switch (port) { + case 0: + if (gpio_get_value(USB_CDET_GPIO)) + return USB_INIT_DEVICE; + else + return USB_INIT_HOST; + case 1: + default: + return USB_INIT_HOST; + } +} + +int board_late_init(void) +{ +#if defined(CONFIG_DM_VIDEO) + setup_lcd(); +#endif + return 0; +} + +#endif |