/* * Copyright (C) 2013 Freescale Semiconductor, Inc. * Copyright (C) 2014 O.S. Systems Software LTDA. * * Author: Fabio Estevam <fabio.estevam@freescale.com> * * SPDX-License-Identifier: GPL-2.0+ */ #include <asm/arch/clock.h> #include <asm/arch/crm_regs.h> #include <asm/arch/iomux.h> #include <asm/arch/imx-regs.h> #include <asm/arch/mx6-pins.h> #include <asm/arch/mxc_hdmi.h> #include <asm/arch/sys_proto.h> #include <asm/gpio.h> #include <asm/imx-common/iomux-v3.h> #include <asm/imx-common/mxc_i2c.h> #include <asm/imx-common/boot_mode.h> #include <asm/imx-common/video.h> #include <asm/imx-common/sata.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 <phy.h> #include <input.h> #include <i2c.h> DECLARE_GLOBAL_DATA_PTR; #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ PAD_CTL_SRE_FAST | PAD_CTL_HYS) #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ PAD_CTL_SRE_FAST | PAD_CTL_HYS) #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ PAD_CTL_ODE | PAD_CTL_SRE_FAST) #define USDHC1_CD_GPIO IMX_GPIO_NR(1, 2) #define USDHC3_CD_GPIO IMX_GPIO_NR(3, 9) #define ETH_PHY_RESET IMX_GPIO_NR(3, 29) #define REV_DETECTION IMX_GPIO_NR(2, 28) int dram_init(void) { gd->ram_size = imx_ddr_size(); return 0; } static iomux_v3_cfg_t const uart1_pads[] = { IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), }; static iomux_v3_cfg_t const usdhc1_pads[] = { IOMUX_PADS(PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), /* Carrier MicroSD Card Detect */ IOMUX_PADS(PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL)), }; static iomux_v3_cfg_t const usdhc3_pads[] = { IOMUX_PADS(PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), /* SOM MicroSD Card Detect */ IOMUX_PADS(PAD_EIM_DA9__GPIO3_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL)), }; static iomux_v3_cfg_t const enet_pads[] = { IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)), /* AR8031 PHY Reset */ IOMUX_PADS(PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL)), }; static iomux_v3_cfg_t const rev_detection_pad[] = { IOMUX_PADS(PAD_EIM_EB0__GPIO2_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)), }; static void setup_iomux_uart(void) { SETUP_IOMUX_PADS(uart1_pads); } static void setup_iomux_enet(void) { SETUP_IOMUX_PADS(enet_pads); /* Reset AR8031 PHY */ gpio_direction_output(ETH_PHY_RESET, 0); mdelay(10); gpio_set_value(ETH_PHY_RESET, 1); udelay(100); } static struct fsl_esdhc_cfg usdhc_cfg[2] = { {USDHC3_BASE_ADDR}, {USDHC1_BASE_ADDR}, }; int board_mmc_getcd(struct mmc *mmc) { struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; int ret = 0; switch (cfg->esdhc_base) { case USDHC1_BASE_ADDR: ret = !gpio_get_value(USDHC1_CD_GPIO); break; case USDHC3_BASE_ADDR: ret = !gpio_get_value(USDHC3_CD_GPIO); break; } return ret; } int board_mmc_init(bd_t *bis) { int ret; u32 index = 0; /* * Following map is done: * (U-Boot device node) (Physical Port) * mmc0 SOM MicroSD * mmc1 Carrier board MicroSD */ for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) { switch (index) { case 0: SETUP_IOMUX_PADS(usdhc3_pads); usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); usdhc_cfg[0].max_bus_width = 4; gpio_direction_input(USDHC3_CD_GPIO); break; case 1: SETUP_IOMUX_PADS(usdhc1_pads); usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); usdhc_cfg[1].max_bus_width = 4; gpio_direction_input(USDHC1_CD_GPIO); break; default: printf("Warning: you configured more USDHC controllers" "(%d) then supported by the board (%d)\n", index + 1, CONFIG_SYS_FSL_USDHC_NUM); return -EINVAL; } ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]); if (ret) return ret; } return 0; } static int ar8031_phy_fixup(struct phy_device *phydev) { unsigned short val; /* To enable AR8031 ouput a 125MHz clk from CLK_25M */ phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7); phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016); phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007); val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe); val &= 0xffe3; val |= 0x18; phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val); /* introduce tx clock delay */ phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5); val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e); val |= 0x0100; phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val); return 0; } int board_phy_config(struct phy_device *phydev) { ar8031_phy_fixup(phydev); if (phydev->drv->config) phydev->drv->config(phydev); return 0; } #if defined(CONFIG_VIDEO_IPUV3) struct i2c_pads_info mx6q_i2c2_pad_info = { .scl = { .i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL), .gpio_mode = MX6Q_PAD_KEY_COL3__GPIO4_IO12 | MUX_PAD_CTRL(I2C_PAD_CTRL), .gp = IMX_GPIO_NR(4, 12) }, .sda = { .i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL), .gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO4_IO13 | MUX_PAD_CTRL(I2C_PAD_CTRL), .gp = IMX_GPIO_NR(4, 13) } }; struct i2c_pads_info mx6dl_i2c2_pad_info = { .scl = { .i2c_mode = MX6DL_PAD_KEY_COL3__I2C2_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL), .gpio_mode = MX6DL_PAD_KEY_COL3__GPIO4_IO12 | MUX_PAD_CTRL(I2C_PAD_CTRL), .gp = IMX_GPIO_NR(4, 12) }, .sda = { .i2c_mode = MX6DL_PAD_KEY_ROW3__I2C2_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL), .gpio_mode = MX6DL_PAD_KEY_ROW3__GPIO4_IO13 | MUX_PAD_CTRL(I2C_PAD_CTRL), .gp = IMX_GPIO_NR(4, 13) } }; static iomux_v3_cfg_t const fwadapt_7wvga_pads[] = { IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK), IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02), /* HSync */ IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03), /* VSync */ IOMUX_PADS(PAD_DI0_PIN4__IPU1_DI0_PIN04 | MUX_PAD_CTRL(PAD_CTL_DSE_120ohm)), /* Contrast */ IOMUX_PADS(PAD_DI0_PIN15__IPU1_DI0_PIN15), /* DISP0_DRDY */ IOMUX_PADS(PAD_DISP0_DAT0__IPU1_DISP0_DATA00), IOMUX_PADS(PAD_DISP0_DAT1__IPU1_DISP0_DATA01), IOMUX_PADS(PAD_DISP0_DAT2__IPU1_DISP0_DATA02), IOMUX_PADS(PAD_DISP0_DAT3__IPU1_DISP0_DATA03), IOMUX_PADS(PAD_DISP0_DAT4__IPU1_DISP0_DATA04), IOMUX_PADS(PAD_DISP0_DAT5__IPU1_DISP0_DATA05), IOMUX_PADS(PAD_DISP0_DAT6__IPU1_DISP0_DATA06), IOMUX_PADS(PAD_DISP0_DAT7__IPU1_DISP0_DATA07), IOMUX_PADS(PAD_DISP0_DAT8__IPU1_DISP0_DATA08), IOMUX_PADS(PAD_DISP0_DAT9__IPU1_DISP0_DATA09), IOMUX_PADS(PAD_DISP0_DAT10__IPU1_DISP0_DATA10), IOMUX_PADS(PAD_DISP0_DAT11__IPU1_DISP0_DATA11), IOMUX_PADS(PAD_DISP0_DAT12__IPU1_DISP0_DATA12), IOMUX_PADS(PAD_DISP0_DAT13__IPU1_DISP0_DATA13), IOMUX_PADS(PAD_DISP0_DAT14__IPU1_DISP0_DATA14), IOMUX_PADS(PAD_DISP0_DAT15__IPU1_DISP0_DATA15), IOMUX_PADS(PAD_DISP0_DAT16__IPU1_DISP0_DATA16), IOMUX_PADS(PAD_DISP0_DAT17__IPU1_DISP0_DATA17), IOMUX_PADS(PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_BKLEN */ IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_VDDEN */ }; static void do_enable_hdmi(struct display_info_t const *dev) { imx_enable_hdmi_phy(); } static int detect_i2c(struct display_info_t const *dev) { return (0 == i2c_set_bus_num(dev->bus)) && (0 == i2c_probe(dev->addr)); } static void enable_fwadapt_7wvga(struct display_info_t const *dev) { SETUP_IOMUX_PADS(fwadapt_7wvga_pads); gpio_direction_output(IMX_GPIO_NR(2, 10), 1); gpio_direction_output(IMX_GPIO_NR(2, 11), 1); } struct display_info_t const displays[] = {{ .bus = -1, .addr = 0, .pixfmt = IPU_PIX_FMT_RGB24, .detect = detect_hdmi, .enable = do_enable_hdmi, .mode = { .name = "HDMI", .refresh = 60, .xres = 1024, .yres = 768, .pixclock = 15385, .left_margin = 220, .right_margin = 40, .upper_margin = 21, .lower_margin = 7, .hsync_len = 60, .vsync_len = 10, .sync = FB_SYNC_EXT, .vmode = FB_VMODE_NONINTERLACED } }, { .bus = 1, .addr = 0x10, .pixfmt = IPU_PIX_FMT_RGB666, .detect = detect_i2c, .enable = enable_fwadapt_7wvga, .mode = { .name = "FWBADAPT-LCD-F07A-0102", .refresh = 60, .xres = 800, .yres = 480, .pixclock = 33260, .left_margin = 128, .right_margin = 128, .upper_margin = 22, .lower_margin = 22, .hsync_len = 1, .vsync_len = 1, .sync = 0, .vmode = FB_VMODE_NONINTERLACED } } }; size_t display_count = ARRAY_SIZE(displays); static void setup_display(void) { struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; int reg; enable_ipu_clock(); imx_setup_hdmi(); reg = readl(&mxc_ccm->chsccdr); reg |= (CHSCCDR_CLK_SEL_LDB_DI0 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET); writel(reg, &mxc_ccm->chsccdr); /* Disable LCD backlight */ SETUP_IOMUX_PAD(PAD_DI0_PIN4__GPIO4_IO20); gpio_direction_input(IMX_GPIO_NR(4, 20)); } #endif /* CONFIG_VIDEO_IPUV3 */ int board_eth_init(bd_t *bis) { setup_iomux_enet(); return cpu_eth_init(bis); } int board_early_init_f(void) { setup_iomux_uart(); #if defined(CONFIG_VIDEO_IPUV3) setup_display(); #endif #ifdef CONFIG_CMD_SATA /* Only mx6q wandboard has SATA */ if (is_cpu_type(MXC_CPU_MX6Q)) setup_sata(); #endif return 0; } /* * Do not overwrite the console * Use always serial for U-Boot console */ int overwrite_console(void) { return 1; } #ifdef CONFIG_CMD_BMODE static const struct boot_mode board_boot_modes[] = { /* 4 bit bus width */ {"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)}, {"mmc1", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)}, {NULL, 0}, }; #endif static bool is_revc1(void) { SETUP_IOMUX_PADS(rev_detection_pad); gpio_direction_input(REV_DETECTION); if (gpio_get_value(REV_DETECTION)) return true; else return false; } int board_late_init(void) { #ifdef CONFIG_CMD_BMODE add_board_boot_modes(board_boot_modes); #endif #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG if (is_mx6dq()) setenv("board_rev", "MX6Q"); else setenv("board_rev", "MX6DL"); if (is_revc1()) setenv("board_name", "C1"); else setenv("board_name", "B1"); #endif return 0; } int board_init(void) { /* address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; #if defined(CONFIG_VIDEO_IPUV3) setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6dl_i2c2_pad_info); if (is_mx6dq()) setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6q_i2c2_pad_info); else setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6dl_i2c2_pad_info); #endif return 0; } int checkboard(void) { if (is_revc1()) puts("Board: Wandboard rev C1\n"); else puts("Board: Wandboard rev B1\n"); return 0; }