/* * Copyright (C) 2010-2013 Freescale Semiconductor, Inc. * Copyright (C) 2013, Boundary Devices * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include 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 SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \ PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) #define BUTTON_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 WEAK_PULLUP (PAD_CTL_PUS_100K_UP | \ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ PAD_CTL_SRE_SLOW) #define WEAK_PULLDOWN (PAD_CTL_PUS_100K_DOWN | \ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ PAD_CTL_HYS | PAD_CTL_SRE_SLOW) #define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm) int dram_init(void) { gd->ram_size = ((ulong)CONFIG_DDR_MB * 1024 * 1024); return 0; } iomux_v3_cfg_t const uart1_pads[] = { MX6_PAD_SD3_DAT6__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL), MX6_PAD_SD3_DAT7__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL), }; iomux_v3_cfg_t const uart2_pads[] = { MX6_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL), MX6_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL), }; #define PC MUX_PAD_CTRL(I2C_PAD_CTRL) /* I2C1, SGTL5000 */ struct i2c_pads_info i2c_pad_info0 = { .scl = { .i2c_mode = MX6_PAD_EIM_D21__I2C1_SCL | PC, .gpio_mode = MX6_PAD_EIM_D21__GPIO_3_21 | PC, .gp = IMX_GPIO_NR(3, 21) }, .sda = { .i2c_mode = MX6_PAD_EIM_D28__I2C1_SDA | PC, .gpio_mode = MX6_PAD_EIM_D28__GPIO_3_28 | PC, .gp = IMX_GPIO_NR(3, 28) } }; /* I2C2 Camera, MIPI */ struct i2c_pads_info i2c_pad_info1 = { .scl = { .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC, .gpio_mode = MX6_PAD_KEY_COL3__GPIO_4_12 | PC, .gp = IMX_GPIO_NR(4, 12) }, .sda = { .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC, .gpio_mode = MX6_PAD_KEY_ROW3__GPIO_4_13 | PC, .gp = IMX_GPIO_NR(4, 13) } }; /* I2C3, J15 - RGB connector */ struct i2c_pads_info i2c_pad_info2 = { .scl = { .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | PC, .gpio_mode = MX6_PAD_GPIO_5__GPIO_1_5 | PC, .gp = IMX_GPIO_NR(1, 5) }, .sda = { .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | PC, .gpio_mode = MX6_PAD_GPIO_16__GPIO_7_11 | PC, .gp = IMX_GPIO_NR(7, 11) } }; iomux_v3_cfg_t const usdhc3_pads[] = { MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD3_DAT5__GPIO_7_0 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ }; iomux_v3_cfg_t const usdhc4_pads[] = { MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_NANDF_D6__GPIO_2_6 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ }; iomux_v3_cfg_t const enet_pads1[] = { MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_TXC__ENET_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_TD0__ENET_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_TD1__ENET_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_TD2__ENET_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_TD3__ENET_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), /* pin 35 - 1 (PHY_AD2) on reset */ MX6_PAD_RGMII_RXC__GPIO_6_30 | MUX_PAD_CTRL(NO_PAD_CTRL), /* pin 32 - 1 - (MODE0) all */ MX6_PAD_RGMII_RD0__GPIO_6_25 | MUX_PAD_CTRL(NO_PAD_CTRL), /* pin 31 - 1 - (MODE1) all */ MX6_PAD_RGMII_RD1__GPIO_6_27 | MUX_PAD_CTRL(NO_PAD_CTRL), /* pin 28 - 1 - (MODE2) all */ MX6_PAD_RGMII_RD2__GPIO_6_28 | MUX_PAD_CTRL(NO_PAD_CTRL), /* pin 27 - 1 - (MODE3) all */ MX6_PAD_RGMII_RD3__GPIO_6_29 | MUX_PAD_CTRL(NO_PAD_CTRL), /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */ MX6_PAD_RGMII_RX_CTL__GPIO_6_24 | MUX_PAD_CTRL(NO_PAD_CTRL), /* pin 42 PHY nRST */ MX6_PAD_EIM_D23__GPIO_3_23 | MUX_PAD_CTRL(NO_PAD_CTRL), MX6_PAD_ENET_RXD0__GPIO_1_27 | MUX_PAD_CTRL(NO_PAD_CTRL), }; iomux_v3_cfg_t const enet_pads2[] = { MX6_PAD_RGMII_RXC__ENET_RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_RD0__ENET_RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_RD1__ENET_RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_RD2__ENET_RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_RD3__ENET_RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), }; /* wl1271 pads on nitrogen6x */ iomux_v3_cfg_t const wl12xx_pads[] = { (MX6_PAD_NANDF_CS1__GPIO_6_14 & ~MUX_PAD_CTRL_MASK) | MUX_PAD_CTRL(WEAK_PULLDOWN), (MX6_PAD_NANDF_CS2__GPIO_6_15 & ~MUX_PAD_CTRL_MASK) | MUX_PAD_CTRL(OUTPUT_40OHM), (MX6_PAD_NANDF_CS3__GPIO_6_16 & ~MUX_PAD_CTRL_MASK) | MUX_PAD_CTRL(OUTPUT_40OHM), }; #define WL12XX_WL_IRQ_GP IMX_GPIO_NR(6, 14) #define WL12XX_WL_ENABLE_GP IMX_GPIO_NR(6, 15) #define WL12XX_BT_ENABLE_GP IMX_GPIO_NR(6, 16) /* Button assignments for J14 */ static iomux_v3_cfg_t const button_pads[] = { /* Menu */ MX6_PAD_NANDF_D1__GPIO_2_1 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), /* Back */ MX6_PAD_NANDF_D2__GPIO_2_2 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), /* Labelled Search (mapped to Power under Android) */ MX6_PAD_NANDF_D3__GPIO_2_3 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), /* Home */ MX6_PAD_NANDF_D4__GPIO_2_4 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), /* Volume Down */ MX6_PAD_GPIO_19__GPIO_4_5 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), /* Volume Up */ MX6_PAD_GPIO_18__GPIO_7_13 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), }; static void setup_iomux_enet(void) { gpio_direction_output(IMX_GPIO_NR(3, 23), 0); /* SABRE Lite PHY rst */ gpio_direction_output(IMX_GPIO_NR(1, 27), 0); /* Nitrogen6X PHY rst */ gpio_direction_output(IMX_GPIO_NR(6, 30), 1); gpio_direction_output(IMX_GPIO_NR(6, 25), 1); gpio_direction_output(IMX_GPIO_NR(6, 27), 1); gpio_direction_output(IMX_GPIO_NR(6, 28), 1); gpio_direction_output(IMX_GPIO_NR(6, 29), 1); imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1)); gpio_direction_output(IMX_GPIO_NR(6, 24), 1); /* Need delay 10ms according to KSZ9021 spec */ udelay(1000 * 10); gpio_set_value(IMX_GPIO_NR(3, 23), 1); /* SABRE Lite PHY reset */ gpio_set_value(IMX_GPIO_NR(1, 27), 1); /* Nitrogen6X PHY reset */ imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2)); } iomux_v3_cfg_t const usb_pads[] = { MX6_PAD_GPIO_17__GPIO_7_12 | MUX_PAD_CTRL(NO_PAD_CTRL), }; static void setup_iomux_uart(void) { imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads)); } #ifdef CONFIG_USB_EHCI_MX6 int board_ehci_hcd_init(int port) { imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads)); /* Reset USB hub */ gpio_direction_output(IMX_GPIO_NR(7, 12), 0); mdelay(2); gpio_set_value(IMX_GPIO_NR(7, 12), 1); return 0; } #endif #ifdef CONFIG_FSL_ESDHC struct fsl_esdhc_cfg usdhc_cfg[2] = { {USDHC3_BASE_ADDR}, {USDHC4_BASE_ADDR}, }; int board_mmc_getcd(struct mmc *mmc) { struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; int ret; if (cfg->esdhc_base == USDHC3_BASE_ADDR) { gpio_direction_input(IMX_GPIO_NR(7, 0)); ret = !gpio_get_value(IMX_GPIO_NR(7, 0)); } else { gpio_direction_input(IMX_GPIO_NR(2, 6)); ret = !gpio_get_value(IMX_GPIO_NR(2, 6)); } return ret; } int board_mmc_init(bd_t *bis) { s32 status = 0; u32 index = 0; usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); usdhc_cfg[0].max_bus_width = 4; usdhc_cfg[1].max_bus_width = 4; for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) { switch (index) { case 0: imx_iomux_v3_setup_multiple_pads( usdhc3_pads, ARRAY_SIZE(usdhc3_pads)); break; case 1: imx_iomux_v3_setup_multiple_pads( usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 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 status; } status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]); } return status; } #endif #ifdef CONFIG_MXC_SPI iomux_v3_cfg_t const ecspi1_pads[] = { /* SS1 */ MX6_PAD_EIM_D19__GPIO_3_19 | MUX_PAD_CTRL(SPI_PAD_CTRL), MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), }; void setup_spi(void) { imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads)); } #endif int board_phy_config(struct phy_device *phydev) { /* min rx data delay */ ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0); /* min tx data delay */ ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0); /* max rx/tx clock delay, min rx/tx control */ ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0); if (phydev->drv->config) phydev->drv->config(phydev); return 0; } int board_eth_init(bd_t *bis) { uint32_t base = IMX_FEC_BASE; struct mii_dev *bus = NULL; struct phy_device *phydev = NULL; int ret; setup_iomux_enet(); #ifdef CONFIG_FEC_MXC bus = fec_get_miibus(base, -1); if (!bus) return 0; /* scan phy 4,5,6,7 */ phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII); if (!phydev) { free(bus); return 0; } printf("using phy at %d\n", phydev->addr); ret = fec_probe(bis, -1, base, bus, phydev); if (ret) { printf("FEC MXC: %s:failed\n", __func__); free(phydev); free(bus); } #endif return 0; } static void setup_buttons(void) { imx_iomux_v3_setup_multiple_pads(button_pads, ARRAY_SIZE(button_pads)); } #ifdef CONFIG_CMD_SATA int setup_sata(void) { struct iomuxc_base_regs *const iomuxc_regs = (struct iomuxc_base_regs *) IOMUXC_BASE_ADDR; int ret = enable_sata_clock(); if (ret) return ret; clrsetbits_le32(&iomuxc_regs->gpr[13], IOMUXC_GPR13_SATA_MASK, IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P0DB |IOMUXC_GPR13_SATA_PHY_7_SATA2M |IOMUXC_GPR13_SATA_SPEED_3G |(3<phy_stat0) & HDMI_DVI_STAT; } 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_lvds(struct display_info_t const *dev) { struct iomuxc *iomux = (struct iomuxc *) IOMUXC_BASE_ADDR; u32 reg = readl(&iomux->gpr[2]); reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT; writel(reg, &iomux->gpr[2]); gpio_direction_output(LVDS_BACKLIGHT_GP, 1); } static void enable_rgb(struct display_info_t const *dev) { imx_iomux_v3_setup_multiple_pads( rgb_pads, ARRAY_SIZE(rgb_pads)); gpio_direction_output(RGB_BACKLIGHT_GP, 1); } static 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 = 2, .addr = 0x4, .pixfmt = IPU_PIX_FMT_LVDS666, .detect = detect_i2c, .enable = enable_lvds, .mode = { .name = "Hannstar-XGA", .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 = 2, .addr = 0x38, .pixfmt = IPU_PIX_FMT_LVDS666, .detect = detect_i2c, .enable = enable_lvds, .mode = { .name = "wsvga-lvds", .refresh = 60, .xres = 1024, .yres = 600, .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 = 2, .addr = 0x48, .pixfmt = IPU_PIX_FMT_RGB666, .detect = detect_i2c, .enable = enable_rgb, .mode = { .name = "wvga-rgb", .refresh = 57, .xres = 800, .yres = 480, .pixclock = 37037, .left_margin = 40, .right_margin = 60, .upper_margin = 10, .lower_margin = 10, .hsync_len = 20, .vsync_len = 10, .sync = 0, .vmode = FB_VMODE_NONINTERLACED } } }; int board_video_skip(void) { int i; int ret; char const *panel = getenv("panel"); if (!panel) { for (i = 0; i < ARRAY_SIZE(displays); i++) { struct display_info_t const *dev = displays+i; if (dev->detect(dev)) { panel = dev->mode.name; printf("auto-detected panel %s\n", panel); break; } } if (!panel) { panel = displays[0].mode.name; printf("No panel detected: default to %s\n", panel); } } else { for (i = 0; i < ARRAY_SIZE(displays); i++) { if (!strcmp(panel, displays[i].mode.name)) break; } } if (i < ARRAY_SIZE(displays)) { ret = ipuv3_fb_init(&displays[i].mode, 0, displays[i].pixfmt); if (!ret) { displays[i].enable(displays+i); printf("Display: %s (%ux%u)\n", displays[i].mode.name, displays[i].mode.xres, displays[i].mode.yres); } else printf("LCD %s cannot be configured: %d\n", displays[i].mode.name, ret); } else { printf("unsupported panel %s\n", panel); ret = -EINVAL; } return (0 != ret); } static void setup_display(void) { struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR; struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; int reg; enable_ipu_clock(); imx_setup_hdmi(); /* Turn on LDB0,IPU,IPU DI0 clocks */ reg = __raw_readl(&mxc_ccm->CCGR3); reg |= MXC_CCM_CCGR3_LDB_DI0_MASK; writel(reg, &mxc_ccm->CCGR3); /* set PFD1_FRAC to 0x13 == 455 MHz (480*18)/0x13 */ writel(ANATOP_PFD_480_PFD1_FRAC_MASK, &anatop->pfd_480_clr); writel(0x13<pfd_480_set); /* set LDB0, LDB1 clk select to 011/011 */ reg = readl(&mxc_ccm->cs2cdr); reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK |MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK); reg |= (3<cs2cdr); reg = readl(&mxc_ccm->cscmr2); reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV; writel(reg, &mxc_ccm->cscmr2); reg = readl(&mxc_ccm->chsccdr); reg |= (CHSCCDR_CLK_SEL_LDB_DI0 <chsccdr); reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES |IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH |IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW |IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG |IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT |IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG |IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT |IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED |IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0; writel(reg, &iomux->gpr[2]); reg = readl(&iomux->gpr[3]); reg = (reg & ~(IOMUXC_GPR3_LVDS0_MUX_CTL_MASK |IOMUXC_GPR3_HDMI_MUX_CTL_MASK)) | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0 <gpr[3]); /* backlights off until needed */ imx_iomux_v3_setup_multiple_pads(backlight_pads, ARRAY_SIZE(backlight_pads)); gpio_direction_input(LVDS_BACKLIGHT_GP); gpio_direction_input(RGB_BACKLIGHT_GP); } #endif int board_early_init_f(void) { setup_iomux_uart(); /* Disable wl1271 For Nitrogen6w */ gpio_direction_input(WL12XX_WL_IRQ_GP); gpio_direction_output(WL12XX_WL_ENABLE_GP, 0); gpio_direction_output(WL12XX_BT_ENABLE_GP, 0); imx_iomux_v3_setup_multiple_pads(wl12xx_pads, ARRAY_SIZE(wl12xx_pads)); setup_buttons(); #if defined(CONFIG_VIDEO_IPUV3) setup_display(); #endif return 0; } /* * Do not overwrite the console * Use always serial for U-Boot console */ int overwrite_console(void) { return 1; } int board_init(void) { /* address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; #ifdef CONFIG_MXC_SPI setup_spi(); #endif setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0); setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); #ifdef CONFIG_CMD_SATA setup_sata(); #endif return 0; } int checkboard(void) { if (gpio_get_value(WL12XX_WL_IRQ_GP)) puts("Board: Nitrogen6X\n"); else puts("Board: SABRE Lite\n"); return 0; } struct button_key { char const *name; unsigned gpnum; char ident; }; static struct button_key const buttons[] = { {"back", IMX_GPIO_NR(2, 2), 'B'}, {"home", IMX_GPIO_NR(2, 4), 'H'}, {"menu", IMX_GPIO_NR(2, 1), 'M'}, {"search", IMX_GPIO_NR(2, 3), 'S'}, {"volup", IMX_GPIO_NR(7, 13), 'V'}, {"voldown", IMX_GPIO_NR(4, 5), 'v'}, }; /* * generate a null-terminated string containing the buttons pressed * returns number of keys pressed */ static int read_keys(char *buf) { int i, numpressed = 0; for (i = 0; i < ARRAY_SIZE(buttons); i++) { if (!gpio_get_value(buttons[i].gpnum)) buf[numpressed++] = buttons[i].ident; } buf[numpressed] = '\0'; return numpressed; } static int do_kbd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { char envvalue[ARRAY_SIZE(buttons)+1]; int numpressed = read_keys(envvalue); setenv("keybd", envvalue); return numpressed == 0; } U_BOOT_CMD( kbd, 1, 1, do_kbd, "Tests for keypresses, sets 'keybd' environment variable", "Returns 0 (true) to shell if key is pressed." ); #ifdef CONFIG_PREBOOT static char const kbd_magic_prefix[] = "key_magic"; static char const kbd_command_prefix[] = "key_cmd"; static void preboot_keys(void) { int numpressed; char keypress[ARRAY_SIZE(buttons)+1]; numpressed = read_keys(keypress); if (numpressed) { char *kbd_magic_keys = getenv("magic_keys"); char *suffix; /* * loop over all magic keys */ for (suffix = kbd_magic_keys; *suffix; ++suffix) { char *keys; char magic[sizeof(kbd_magic_prefix) + 1]; sprintf(magic, "%s%c", kbd_magic_prefix, *suffix); keys = getenv(magic); if (keys) { if (!strcmp(keys, keypress)) break; } } if (*suffix) { char cmd_name[sizeof(kbd_command_prefix) + 1]; char *cmd; sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix); cmd = getenv(cmd_name); if (cmd) { setenv("preboot", cmd); return; } } } } #endif #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, 0x38, 0x00, 0x00)}, {NULL, 0}, }; #endif int misc_init_r(void) { #ifdef CONFIG_PREBOOT preboot_keys(); #endif #ifdef CONFIG_CMD_BMODE add_board_boot_modes(board_boot_modes); #endif return 0; }