// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2010-2013 Freescale Semiconductor, Inc. * Copyright (C) 2013, Boundary Devices * Copyright (C) 2014-2019, Toradex AG * copied from nitrogen6x */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../common/tdx-cfg-block.h" #ifdef CONFIG_TDX_CMD_IMX_MFGR #include "pf0100.h" #endif 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_40ohm | \ PAD_CTL_SRE_FAST | PAD_CTL_HYS) #define USDHC_EMMC_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 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 TRISTATE (PAD_CTL_HYS | PAD_CTL_SPEED_MED) #define OUTPUT_RGB (PAD_CTL_SPEED_MED|PAD_CTL_DSE_60ohm|PAD_CTL_SRE_FAST) #define APALIS_IMX6_SATA_INIT_RETRIES 10 int dram_init(void) { /* use the DDR controllers configured size */ gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, (ulong)imx_ddr_size()); return 0; } /* Apalis UART1 */ iomux_v3_cfg_t const uart1_pads_dce[] = { MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), }; iomux_v3_cfg_t const uart1_pads_dte[] = { MX6_PAD_CSI0_DAT10__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), MX6_PAD_CSI0_DAT11__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), }; #if defined(CONFIG_FSL_ESDHC_IMX) && defined(CONFIG_SPL_BUILD) /* Apalis MMC1 */ iomux_v3_cfg_t const usdhc1_pads[] = { MX6_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_NANDF_D0__SD1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_NANDF_D1__SD1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_NANDF_D2__SD1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_NANDF_D3__SD1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_DI0_PIN4__GPIO4_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ # define GPIO_MMC_CD IMX_GPIO_NR(4, 20) }; /* Apalis SD1 */ iomux_v3_cfg_t const usdhc2_pads[] = { MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_NANDF_CS1__GPIO6_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ # define GPIO_SD_CD IMX_GPIO_NR(6, 14) }; /* eMMC */ iomux_v3_cfg_t const usdhc3_pads[] = { MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL), MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL), MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL), MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL), MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL), MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL), MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL), MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL), MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL), MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL), MX6_PAD_SD3_RST__GPIO7_IO08 | MUX_PAD_CTRL(WEAK_PULLUP) | MUX_MODE_SION, }; #endif /* CONFIG_FSL_ESDHC_IMX & CONFIG_SPL_BUILD */ int mx6_rgmii_rework(struct phy_device *phydev) { int tmp; switch (ksz9xx1_phy_get_id(phydev) & MII_KSZ9x31_SILICON_REV_MASK) { case PHY_ID_KSZ9131: /* read rxc dll control - devaddr = 0x02, register = 0x4c */ tmp = ksz9031_phy_extended_read(phydev, 0x02, MII_KSZ9131_EXT_RGMII_2NS_SKEW_RXDLL, MII_KSZ9031_MOD_DATA_NO_POST_INC); /* disable rxdll bypass (enable 2ns skew delay on RXC) */ tmp &= ~MII_KSZ9131_RXTXDLL_BYPASS; /* rxc data pad skew 2ns - devaddr = 0x02, register = 0x4c */ ksz9031_phy_extended_write(phydev, 0x02, MII_KSZ9131_EXT_RGMII_2NS_SKEW_RXDLL, MII_KSZ9031_MOD_DATA_NO_POST_INC, tmp); /* read txc dll control - devaddr = 0x02, register = 0x4d */ tmp = ksz9031_phy_extended_read(phydev, 0x02, MII_KSZ9131_EXT_RGMII_2NS_SKEW_TXDLL, MII_KSZ9031_MOD_DATA_NO_POST_INC); /* disable rxdll bypass (enable 2ns skew delay on TXC) */ tmp &= ~MII_KSZ9131_RXTXDLL_BYPASS; /* txc data pad skew 2ns - devaddr = 0x02, register = 0x4d */ ksz9031_phy_extended_write(phydev, 0x02, MII_KSZ9131_EXT_RGMII_2NS_SKEW_TXDLL, MII_KSZ9031_MOD_DATA_NO_POST_INC, tmp); /* control data pad skew - devaddr = 0x02, register = 0x04 */ ksz9031_phy_extended_write(phydev, 0x02, MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW, MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x007d); /* rx data pad skew - devaddr = 0x02, register = 0x05 */ ksz9031_phy_extended_write(phydev, 0x02, MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW, MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x7777); /* tx data pad skew - devaddr = 0x02, register = 0x05 */ ksz9031_phy_extended_write(phydev, 0x02, MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW, MII_KSZ9031_MOD_DATA_NO_POST_INC, 0xdddd); /* gtx and rx clock pad skew - devaddr = 0x02,register = 0x08 */ ksz9031_phy_extended_write(phydev, 0x02, MII_KSZ9031_EXT_RGMII_CLOCK_SKEW, MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0007); break; case PHY_ID_KSZ9031: default: /* control data pad skew - devaddr = 0x02, register = 0x04 */ ksz9031_phy_extended_write(phydev, 0x02, MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW, MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000); /* rx data pad skew - devaddr = 0x02, register = 0x05 */ ksz9031_phy_extended_write(phydev, 0x02, MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW, MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000); /* tx data pad skew - devaddr = 0x02, register = 0x05 */ ksz9031_phy_extended_write(phydev, 0x02, MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW, MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000); /* gtx and rx clock pad skew - devaddr = 0x02,register = 0x08 */ ksz9031_phy_extended_write(phydev, 0x02, MII_KSZ9031_EXT_RGMII_CLOCK_SKEW, MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x03FF); break; } return 0; } iomux_v3_cfg_t const enet_pads[] = { 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__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_TD3__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), MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), /* KSZ9031 PHY Reset */ MX6_PAD_ENET_CRS_DV__GPIO1_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL) | MUX_MODE_SION, # define GPIO_ENET_PHY_RESET IMX_GPIO_NR(1, 25) }; /* mux the Apalis GPIO pins, so they can be used from the U-Boot cmdline */ iomux_v3_cfg_t const gpio_pads[] = { /* Apalis GPIO1 - GPIO8 */ MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(WEAK_PULLUP) | MUX_MODE_SION, MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(WEAK_PULLUP) | MUX_MODE_SION, MX6_PAD_NANDF_D6__GPIO2_IO06 | MUX_PAD_CTRL(WEAK_PULLUP) | MUX_MODE_SION, MX6_PAD_NANDF_D7__GPIO2_IO07 | MUX_PAD_CTRL(WEAK_PULLUP) | MUX_MODE_SION, MX6_PAD_NANDF_RB0__GPIO6_IO10 | MUX_PAD_CTRL(WEAK_PULLUP) | MUX_MODE_SION, MX6_PAD_NANDF_WP_B__GPIO6_IO09 | MUX_PAD_CTRL(WEAK_PULLUP) | MUX_MODE_SION, MX6_PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(WEAK_PULLDOWN) | MUX_MODE_SION, MX6_PAD_GPIO_6__GPIO1_IO06 | MUX_PAD_CTRL(WEAK_PULLUP) | MUX_MODE_SION, MX6_PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(WEAK_PULLUP) | MUX_MODE_SION, }; static void setup_iomux_gpio(void) { imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads)); } iomux_v3_cfg_t const usb_pads[] = { /* USBH_EN */ MX6_PAD_GPIO_0__GPIO1_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL) | MUX_MODE_SION, # define GPIO_USBH_EN IMX_GPIO_NR(1, 0) /* USB_VBUS_DET */ MX6_PAD_EIM_D28__GPIO3_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL), # define GPIO_USB_VBUS_DET IMX_GPIO_NR(3, 28) /* USBO1_ID */ MX6_PAD_ENET_RX_ER__USB_OTG_ID | MUX_PAD_CTRL(WEAK_PULLUP), /* USBO1_EN */ MX6_PAD_EIM_D22__GPIO3_IO22 | MUX_PAD_CTRL(NO_PAD_CTRL) | MUX_MODE_SION, # define GPIO_USBO_EN IMX_GPIO_NR(3, 22) }; /* * UARTs are used in DTE mode, switch the mode on all UARTs before * any pinmuxing connects a (DCE) output to a transceiver output. */ #define UCR3 0x88 /* FIFO Control Register */ #define UCR3_RI BIT(8) /* RIDELT DTE mode */ #define UCR3_DCD BIT(9) /* DCDDELT DTE mode */ #define UFCR 0x90 /* FIFO Control Register */ #define UFCR_DCEDTE BIT(6) /* DCE=0 */ static void setup_dtemode_uart(void) { setbits_le32((u32 *)(UART1_BASE + UFCR), UFCR_DCEDTE); setbits_le32((u32 *)(UART2_BASE + UFCR), UFCR_DCEDTE); setbits_le32((u32 *)(UART4_BASE + UFCR), UFCR_DCEDTE); setbits_le32((u32 *)(UART5_BASE + UFCR), UFCR_DCEDTE); clrbits_le32((u32 *)(UART1_BASE + UCR3), UCR3_DCD | UCR3_RI); clrbits_le32((u32 *)(UART2_BASE + UCR3), UCR3_DCD | UCR3_RI); clrbits_le32((u32 *)(UART4_BASE + UCR3), UCR3_DCD | UCR3_RI); clrbits_le32((u32 *)(UART5_BASE + UCR3), UCR3_DCD | UCR3_RI); } static void setup_dcemode_uart(void) { clrbits_le32((u32 *)(UART1_BASE + UFCR), UFCR_DCEDTE); clrbits_le32((u32 *)(UART2_BASE + UFCR), UFCR_DCEDTE); clrbits_le32((u32 *)(UART4_BASE + UFCR), UFCR_DCEDTE); clrbits_le32((u32 *)(UART5_BASE + UFCR), UFCR_DCEDTE); } static void setup_iomux_dte_uart(void) { setup_dtemode_uart(); imx_iomux_v3_setup_multiple_pads(uart1_pads_dte, ARRAY_SIZE(uart1_pads_dte)); } static void setup_iomux_dce_uart(void) { setup_dcemode_uart(); imx_iomux_v3_setup_multiple_pads(uart1_pads_dce, ARRAY_SIZE(uart1_pads_dce)); } #ifdef CONFIG_USB_EHCI_MX6 int board_ehci_hcd_init(int port) { imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads)); return 0; } #endif #if defined(CONFIG_FSL_ESDHC_IMX) && defined(CONFIG_SPL_BUILD) /* use the following sequence: eMMC, MMC1, SD1 */ struct fsl_esdhc_cfg usdhc_cfg[CONFIG_SYS_FSL_USDHC_NUM] = { {USDHC3_BASE_ADDR}, {USDHC1_BASE_ADDR}, {USDHC2_BASE_ADDR}, }; int board_mmc_getcd(struct mmc *mmc) { struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; int ret = true; /* default: assume inserted */ switch (cfg->esdhc_base) { case USDHC1_BASE_ADDR: gpio_request(GPIO_MMC_CD, "MMC_CD"); gpio_direction_input(GPIO_MMC_CD); ret = !gpio_get_value(GPIO_MMC_CD); break; case USDHC2_BASE_ADDR: gpio_request(GPIO_MMC_CD, "SD_CD"); gpio_direction_input(GPIO_SD_CD); ret = !gpio_get_value(GPIO_SD_CD); break; } return ret; } int board_mmc_init(struct bd_info *bis) { struct src *psrc = (struct src *)SRC_BASE_ADDR; unsigned reg = readl(&psrc->sbmr1) >> 11; /* * Upon reading BOOT_CFG register the following map is done: * Bit 11 and 12 of BOOT_CFG register can determine the current * mmc port * 0x1 SD1 * 0x2 SD2 * 0x3 SD4 */ switch (reg & 0x3) { case 0x0: imx_iomux_v3_setup_multiple_pads( usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR; usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk; break; case 0x1: imx_iomux_v3_setup_multiple_pads( usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR; usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk; break; case 0x2: imx_iomux_v3_setup_multiple_pads( usdhc3_pads, ARRAY_SIZE(usdhc3_pads)); usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR; usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk; break; default: puts("MMC boot device not available"); } return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); } #endif /* CONFIG_FSL_ESDHC_IMX & CONFIG_SPL_BUILD */ int board_phy_config(struct phy_device *phydev) { mx6_rgmii_rework(phydev); if (phydev->drv->config) phydev->drv->config(phydev); return 0; } static iomux_v3_cfg_t const pwr_intb_pads[] = { /* * the bootrom sets the iomux to vselect, potentially connecting * two outputs. Set this back to GPIO */ MX6_PAD_GPIO_18__GPIO7_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL) }; #if defined(CONFIG_VIDEO_IPUV3) static iomux_v3_cfg_t const backlight_pads[] = { /* Backlight on RGB connector: J15 */ MX6_PAD_EIM_DA13__GPIO3_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL) | MUX_MODE_SION, #define RGB_BACKLIGHT_GP IMX_GPIO_NR(3, 13) /* additional CPU pin on BKL_PWM, keep in tristate */ MX6_PAD_EIM_DA14__GPIO3_IO14 | MUX_PAD_CTRL(TRISTATE), /* Backlight PWM, used as GPIO in U-Boot */ MX6_PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL) | MUX_MODE_SION, #define RGB_BACKLIGHTPWM_GP IMX_GPIO_NR(2, 10) /* buffer output enable 0: buffer enabled */ MX6_PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(WEAK_PULLUP) | MUX_MODE_SION, #define RGB_BACKLIGHTPWM_OE IMX_GPIO_NR(5, 2) /* PSAVE# integrated VDAC */ MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL) | MUX_MODE_SION, #define VGA_PSAVE_NOT_GP IMX_GPIO_NR(6, 31) }; static iomux_v3_cfg_t const rgb_pads[] = { MX6_PAD_EIM_A16__IPU1_DI1_DISP_CLK | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA10__IPU1_DI1_PIN15 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA11__IPU1_DI1_PIN02 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA12__IPU1_DI1_PIN03 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA9__IPU1_DISP1_DATA00 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA8__IPU1_DISP1_DATA01 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA7__IPU1_DISP1_DATA02 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA6__IPU1_DISP1_DATA03 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA5__IPU1_DISP1_DATA04 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA4__IPU1_DISP1_DATA05 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA3__IPU1_DISP1_DATA06 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA2__IPU1_DISP1_DATA07 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA1__IPU1_DISP1_DATA08 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_DA0__IPU1_DISP1_DATA09 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_EB1__IPU1_DISP1_DATA10 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_EB0__IPU1_DISP1_DATA11 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_A17__IPU1_DISP1_DATA12 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_A18__IPU1_DISP1_DATA13 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_A19__IPU1_DISP1_DATA14 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_A20__IPU1_DISP1_DATA15 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_A21__IPU1_DISP1_DATA16 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_A22__IPU1_DISP1_DATA17 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_A23__IPU1_DISP1_DATA18 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_A24__IPU1_DISP1_DATA19 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_D26__IPU1_DISP1_DATA22 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_D27__IPU1_DISP1_DATA23 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_D30__IPU1_DISP1_DATA21 | MUX_PAD_CTRL(OUTPUT_RGB), MX6_PAD_EIM_D31__IPU1_DISP1_DATA20 | MUX_PAD_CTRL(OUTPUT_RGB), }; static void do_enable_hdmi(struct display_info_t const *dev) { imx_enable_hdmi_phy(); } 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(RGB_BACKLIGHT_GP, 1); gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0); gpio_direction_output(RGB_BACKLIGHTPWM_OE, 0); } 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); gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0); gpio_direction_output(RGB_BACKLIGHTPWM_OE, 0); } static int detect_default(struct display_info_t const *dev) { (void) dev; return 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 = 0, .di = 1, .pixfmt = IPU_PIX_FMT_RGB24, .detect = detect_default, .enable = enable_rgb, .mode = { .name = "vga-rgb", .refresh = 60, .xres = 640, .yres = 480, .pixclock = 33000, .left_margin = 48, .right_margin = 16, .upper_margin = 31, .lower_margin = 11, .hsync_len = 96, .vsync_len = 2, .sync = 0, .vmode = FB_VMODE_NONINTERLACED } }, { .bus = -1, .addr = 0, .di = 1, .pixfmt = IPU_PIX_FMT_RGB24, .enable = enable_rgb, .mode = { .name = "wvga-rgb", .refresh = 60, .xres = 800, .yres = 480, .pixclock = 25000, .left_margin = 40, .right_margin = 88, .upper_margin = 33, .lower_margin = 10, .hsync_len = 128, .vsync_len = 2, .sync = 0, .vmode = FB_VMODE_NONINTERLACED } }, { .bus = -1, .addr = 0, .pixfmt = IPU_PIX_FMT_LVDS666, .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 } } }; 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; 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 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]); /* backlight unconditionally on for now */ imx_iomux_v3_setup_multiple_pads(backlight_pads, ARRAY_SIZE(backlight_pads)); /* use 0 for EDT 7", use 1 for LG fullHD panel */ gpio_request(RGB_BACKLIGHTPWM_GP, "BKL1_PWM"); gpio_request(RGB_BACKLIGHTPWM_OE, "BKL1_PWM_EN"); gpio_request(RGB_BACKLIGHT_GP, "BKL1_ON"); gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0); gpio_direction_output(RGB_BACKLIGHTPWM_OE, 0); gpio_direction_output(RGB_BACKLIGHT_GP, 1); } /* * Backlight off before OS handover */ void board_preboot_os(void) { gpio_direction_output(RGB_BACKLIGHTPWM_GP, 1); gpio_direction_output(RGB_BACKLIGHT_GP, 0); } #endif /* defined(CONFIG_VIDEO_IPUV3) */ int board_early_init_f(void) { imx_iomux_v3_setup_multiple_pads(pwr_intb_pads, ARRAY_SIZE(pwr_intb_pads)); #ifndef CONFIG_TDX_APALIS_IMX6_V1_0 setup_iomux_dte_uart(); #else setup_iomux_dce_uart(); #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; #if defined(CONFIG_VIDEO_IPUV3) setup_display(); #endif #ifdef CONFIG_TDX_CMD_IMX_MFGR (void) pmic_init(); #endif #ifdef CONFIG_SATA setup_sata(); #endif setup_iomux_gpio(); return 0; } #ifdef CONFIG_BOARD_LATE_INIT int board_late_init(void) { #if defined(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG) char env_str[256]; u32 rev; rev = get_board_revision(); snprintf(env_str, ARRAY_SIZE(env_str), "%.4x", rev); env_set("board_rev", env_str); #ifndef CONFIG_TDX_APALIS_IMX6_V1_0 if ((rev & 0xfff0) == 0x0100) { char *fdt_env; /* reconfigure the UART to DCE mode dynamically if on V1.0 HW */ setup_iomux_dce_uart(); /* if using the default device tree, use version for V1.0 HW */ fdt_env = env_get("fdt_file"); if ((fdt_env != NULL) && (strcmp(FDT_FILE, fdt_env) == 0)) { env_set("fdt_file", FDT_FILE_V1_0); printf("patching fdt_file to " FDT_FILE_V1_0 "\n"); #ifndef CONFIG_ENV_IS_NOWHERE env_save(); #endif } } #endif /* CONFIG_TDX_APALIS_IMX6_V1_0 */ #endif /* CONFIG_REVISION_TAG */ #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 */ return 0; } #endif /* CONFIG_BOARD_LATE_INIT */ int checkboard(void) { char it[] = " IT"; int minc, maxc; switch (get_cpu_temp_grade(&minc, &maxc)) { case TEMP_AUTOMOTIVE: case TEMP_INDUSTRIAL: break; case TEMP_EXTCOMMERCIAL: default: it[0] = 0; }; printf("Model: Toradex Apalis iMX6 %s %s%s\n", is_cpu_type(MXC_CPU_MX6D) ? "Dual" : "Quad", (gd->ram_size == 0x80000000) ? "2GB" : (gd->ram_size == 0x40000000) ? "1GB" : "512MB", it); return 0; } #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) int ft_board_setup(void *blob, struct bd_info *bd) { return ft_common_board_setup(blob, bd); } #endif #ifdef CONFIG_CMD_BMODE static const struct boot_mode board_boot_modes[] = { /* 4-bit bus width */ {"mmc", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)}, {"sd", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)}, {NULL, 0}, }; #endif int misc_init_r(void) { #ifdef CONFIG_CMD_BMODE add_board_boot_modes(board_boot_modes); #endif return 0; } #ifdef CONFIG_LDO_BYPASS_CHECK /* TODO, use external pmic, for now always ldo_enable */ void ldo_mode_set(int ldo_bypass) { return; } #endif #ifdef CONFIG_SPL_BUILD #include #include #include "asm/arch/mx6q-ddr.h" #include "asm/arch/iomux.h" #include "asm/arch/crm_regs.h" static int mx6_com_dcd_table[] = { /* ddr-setup.cfg */ MX6_IOM_DRAM_SDQS0, 0x00000030, MX6_IOM_DRAM_SDQS1, 0x00000030, MX6_IOM_DRAM_SDQS2, 0x00000030, MX6_IOM_DRAM_SDQS3, 0x00000030, MX6_IOM_DRAM_SDQS4, 0x00000030, MX6_IOM_DRAM_SDQS5, 0x00000030, MX6_IOM_DRAM_SDQS6, 0x00000030, MX6_IOM_DRAM_SDQS7, 0x00000030, MX6_IOM_GRP_B0DS, 0x00000030, MX6_IOM_GRP_B1DS, 0x00000030, MX6_IOM_GRP_B2DS, 0x00000030, MX6_IOM_GRP_B3DS, 0x00000030, MX6_IOM_GRP_B4DS, 0x00000030, MX6_IOM_GRP_B5DS, 0x00000030, MX6_IOM_GRP_B6DS, 0x00000030, MX6_IOM_GRP_B7DS, 0x00000030, MX6_IOM_GRP_ADDDS, 0x00000030, /* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */ MX6_IOM_GRP_CTLDS, 0x00000030, MX6_IOM_DRAM_DQM0, 0x00020030, MX6_IOM_DRAM_DQM1, 0x00020030, MX6_IOM_DRAM_DQM2, 0x00020030, MX6_IOM_DRAM_DQM3, 0x00020030, MX6_IOM_DRAM_DQM4, 0x00020030, MX6_IOM_DRAM_DQM5, 0x00020030, MX6_IOM_DRAM_DQM6, 0x00020030, MX6_IOM_DRAM_DQM7, 0x00020030, MX6_IOM_DRAM_CAS, 0x00020030, MX6_IOM_DRAM_RAS, 0x00020030, MX6_IOM_DRAM_SDCLK_0, 0x00020030, MX6_IOM_DRAM_SDCLK_1, 0x00020030, MX6_IOM_DRAM_RESET, 0x00020030, MX6_IOM_DRAM_SDCKE0, 0x00003000, MX6_IOM_DRAM_SDCKE1, 0x00003000, MX6_IOM_DRAM_SDODT0, 0x00003030, MX6_IOM_DRAM_SDODT1, 0x00003030, /* (differential input) */ MX6_IOM_DDRMODE_CTL, 0x00020000, /* (differential input) */ MX6_IOM_GRP_DDRMODE, 0x00020000, /* disable ddr pullups */ MX6_IOM_GRP_DDRPKE, 0x00000000, MX6_IOM_DRAM_SDBA2, 0x00000000, /* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */ MX6_IOM_GRP_DDR_TYPE, 0x000C0000, /* Read data DQ Byte0-3 delay */ MX6_MMDC_P0_MPRDDQBY0DL, 0x33333333, MX6_MMDC_P0_MPRDDQBY1DL, 0x33333333, MX6_MMDC_P0_MPRDDQBY2DL, 0x33333333, MX6_MMDC_P0_MPRDDQBY3DL, 0x33333333, MX6_MMDC_P1_MPRDDQBY0DL, 0x33333333, MX6_MMDC_P1_MPRDDQBY1DL, 0x33333333, MX6_MMDC_P1_MPRDDQBY2DL, 0x33333333, MX6_MMDC_P1_MPRDDQBY3DL, 0x33333333, /* * MDMISC mirroring interleaved (row/bank/col) */ MX6_MMDC_P0_MDMISC, 0x00081740, /* * MDSCR con_req */ MX6_MMDC_P0_MDSCR, 0x00008000, /* 1066mhz_4x128mx16.cfg */ MX6_MMDC_P0_MDPDC, 0x00020036, MX6_MMDC_P0_MDCFG0, 0x555A7954, MX6_MMDC_P0_MDCFG1, 0xDB328F64, MX6_MMDC_P0_MDCFG2, 0x01FF00DB, MX6_MMDC_P0_MDRWD, 0x000026D2, MX6_MMDC_P0_MDOR, 0x005A1023, MX6_MMDC_P0_MDOTC, 0x09555050, MX6_MMDC_P0_MDPDC, 0x00025576, MX6_MMDC_P0_MDASP, 0x00000027, MX6_MMDC_P0_MDCTL, 0x831A0000, MX6_MMDC_P0_MDSCR, 0x04088032, MX6_MMDC_P0_MDSCR, 0x00008033, MX6_MMDC_P0_MDSCR, 0x00428031, MX6_MMDC_P0_MDSCR, 0x19308030, MX6_MMDC_P0_MDSCR, 0x04008040, MX6_MMDC_P0_MPZQHWCTRL, 0xA1390003, MX6_MMDC_P1_MPZQHWCTRL, 0xA1390003, MX6_MMDC_P0_MDREF, 0x00005800, MX6_MMDC_P0_MPODTCTRL, 0x00000000, MX6_MMDC_P1_MPODTCTRL, 0x00000000, MX6_MMDC_P0_MPDGCTRL0, 0x432A0338, MX6_MMDC_P0_MPDGCTRL1, 0x03260324, MX6_MMDC_P1_MPDGCTRL0, 0x43340344, MX6_MMDC_P1_MPDGCTRL1, 0x031E027C, MX6_MMDC_P0_MPRDDLCTL, 0x33272D2E, MX6_MMDC_P1_MPRDDLCTL, 0x2F312B37, MX6_MMDC_P0_MPWRDLCTL, 0x3A35433C, MX6_MMDC_P1_MPWRDLCTL, 0x4336453F, MX6_MMDC_P0_MPWLDECTRL0, 0x0009000E, MX6_MMDC_P0_MPWLDECTRL1, 0x0018000B, MX6_MMDC_P1_MPWLDECTRL0, 0x00060015, MX6_MMDC_P1_MPWLDECTRL1, 0x0006000E, MX6_MMDC_P0_MPMUR0, 0x00000800, MX6_MMDC_P1_MPMUR0, 0x00000800, MX6_MMDC_P0_MDSCR, 0x00000000, MX6_MMDC_P0_MAPSR, 0x00011006, }; static int mx6_it_dcd_table[] = { /* ddr-setup.cfg */ MX6_IOM_DRAM_SDQS0, 0x00000030, MX6_IOM_DRAM_SDQS1, 0x00000030, MX6_IOM_DRAM_SDQS2, 0x00000030, MX6_IOM_DRAM_SDQS3, 0x00000030, MX6_IOM_DRAM_SDQS4, 0x00000030, MX6_IOM_DRAM_SDQS5, 0x00000030, MX6_IOM_DRAM_SDQS6, 0x00000030, MX6_IOM_DRAM_SDQS7, 0x00000030, MX6_IOM_GRP_B0DS, 0x00000030, MX6_IOM_GRP_B1DS, 0x00000030, MX6_IOM_GRP_B2DS, 0x00000030, MX6_IOM_GRP_B3DS, 0x00000030, MX6_IOM_GRP_B4DS, 0x00000030, MX6_IOM_GRP_B5DS, 0x00000030, MX6_IOM_GRP_B6DS, 0x00000030, MX6_IOM_GRP_B7DS, 0x00000030, MX6_IOM_GRP_ADDDS, 0x00000030, /* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */ MX6_IOM_GRP_CTLDS, 0x00000030, MX6_IOM_DRAM_DQM0, 0x00020030, MX6_IOM_DRAM_DQM1, 0x00020030, MX6_IOM_DRAM_DQM2, 0x00020030, MX6_IOM_DRAM_DQM3, 0x00020030, MX6_IOM_DRAM_DQM4, 0x00020030, MX6_IOM_DRAM_DQM5, 0x00020030, MX6_IOM_DRAM_DQM6, 0x00020030, MX6_IOM_DRAM_DQM7, 0x00020030, MX6_IOM_DRAM_CAS, 0x00020030, MX6_IOM_DRAM_RAS, 0x00020030, MX6_IOM_DRAM_SDCLK_0, 0x00020030, MX6_IOM_DRAM_SDCLK_1, 0x00020030, MX6_IOM_DRAM_RESET, 0x00020030, MX6_IOM_DRAM_SDCKE0, 0x00003000, MX6_IOM_DRAM_SDCKE1, 0x00003000, MX6_IOM_DRAM_SDODT0, 0x00003030, MX6_IOM_DRAM_SDODT1, 0x00003030, /* (differential input) */ MX6_IOM_DDRMODE_CTL, 0x00020000, /* (differential input) */ MX6_IOM_GRP_DDRMODE, 0x00020000, /* disable ddr pullups */ MX6_IOM_GRP_DDRPKE, 0x00000000, MX6_IOM_DRAM_SDBA2, 0x00000000, /* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */ MX6_IOM_GRP_DDR_TYPE, 0x000C0000, /* Read data DQ Byte0-3 delay */ MX6_MMDC_P0_MPRDDQBY0DL, 0x33333333, MX6_MMDC_P0_MPRDDQBY1DL, 0x33333333, MX6_MMDC_P0_MPRDDQBY2DL, 0x33333333, MX6_MMDC_P0_MPRDDQBY3DL, 0x33333333, MX6_MMDC_P1_MPRDDQBY0DL, 0x33333333, MX6_MMDC_P1_MPRDDQBY1DL, 0x33333333, MX6_MMDC_P1_MPRDDQBY2DL, 0x33333333, MX6_MMDC_P1_MPRDDQBY3DL, 0x33333333, /* * MDMISC mirroring interleaved (row/bank/col) */ MX6_MMDC_P0_MDMISC, 0x00081740, /* * MDSCR con_req */ MX6_MMDC_P0_MDSCR, 0x00008000, /* 1066mhz_4x256mx16.cfg */ MX6_MMDC_P0_MDPDC, 0x00020036, MX6_MMDC_P0_MDCFG0, 0x898E78f5, MX6_MMDC_P0_MDCFG1, 0xff328f64, MX6_MMDC_P0_MDCFG2, 0x01FF00DB, MX6_MMDC_P0_MDRWD, 0x000026D2, MX6_MMDC_P0_MDOR, 0x008E1023, MX6_MMDC_P0_MDOTC, 0x09444040, MX6_MMDC_P0_MDPDC, 0x00025576, MX6_MMDC_P0_MDASP, 0x00000047, MX6_MMDC_P0_MDCTL, 0x841A0000, MX6_MMDC_P0_MDSCR, 0x02888032, MX6_MMDC_P0_MDSCR, 0x00008033, MX6_MMDC_P0_MDSCR, 0x00048031, MX6_MMDC_P0_MDSCR, 0x19408030, MX6_MMDC_P0_MDSCR, 0x04008040, MX6_MMDC_P0_MPZQHWCTRL, 0xA1390003, MX6_MMDC_P1_MPZQHWCTRL, 0xA1390003, MX6_MMDC_P0_MDREF, 0x00007800, MX6_MMDC_P0_MPODTCTRL, 0x00022227, MX6_MMDC_P1_MPODTCTRL, 0x00022227, MX6_MMDC_P0_MPDGCTRL0, 0x03300338, MX6_MMDC_P0_MPDGCTRL1, 0x03240324, MX6_MMDC_P1_MPDGCTRL0, 0x03440350, MX6_MMDC_P1_MPDGCTRL1, 0x032C0308, MX6_MMDC_P0_MPRDDLCTL, 0x40363C3E, MX6_MMDC_P1_MPRDDLCTL, 0x3C3E3C46, MX6_MMDC_P0_MPWRDLCTL, 0x403E463E, MX6_MMDC_P1_MPWRDLCTL, 0x4A384C46, MX6_MMDC_P0_MPWLDECTRL0, 0x0009000E, MX6_MMDC_P0_MPWLDECTRL1, 0x0018000B, MX6_MMDC_P1_MPWLDECTRL0, 0x00060015, MX6_MMDC_P1_MPWLDECTRL1, 0x0006000E, MX6_MMDC_P0_MPMUR0, 0x00000800, MX6_MMDC_P1_MPMUR0, 0x00000800, MX6_MMDC_P0_MDSCR, 0x00000000, MX6_MMDC_P0_MAPSR, 0x00011006, }; static void ccgr_init(void) { struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; writel(0x00C03F3F, &ccm->CCGR0); writel(0x0030FC03, &ccm->CCGR1); writel(0x0FFFFFF3, &ccm->CCGR2); writel(0x3FF0300F, &ccm->CCGR3); writel(0x00FFF300, &ccm->CCGR4); writel(0x0F0000F3, &ccm->CCGR5); writel(0x000003FF, &ccm->CCGR6); /* * Setup CCM_CCOSR register as follows: * * cko1_en = 1 --> CKO1 enabled * cko1_div = 111 --> divide by 8 * cko1_sel = 1011 --> ahb_clk_root * * This sets CKO1 at ahb_clk_root/8 = 132/8 = 16.5 MHz */ writel(0x000000FB, &ccm->ccosr); } static void ddr_init(int *table, int size) { int i; for (i = 0; i < size / 2 ; i++) writel(table[2 * i + 1], table[2 * i]); } /* Perform DDR DRAM calibration */ static void spl_dram_perform_cal(void) { #ifdef CONFIG_MX6_DDRCAL int err; struct mx6_ddr_sysinfo ddr_sysinfo = { .dsize = 2, }; err = mmdc_do_write_level_calibration(&ddr_sysinfo); if (err) printf("error %d from write level calibration\n", err); err = mmdc_do_dqs_calibration(&ddr_sysinfo); if (err) printf("error %d from dqs calibration\n", err); #endif } static void spl_dram_init(void) { int minc, maxc; switch (get_cpu_temp_grade(&minc, &maxc)) { case TEMP_COMMERCIAL: case TEMP_EXTCOMMERCIAL: puts("Commercial temperature grade DDR3 timings.\n"); ddr_init(mx6_com_dcd_table, ARRAY_SIZE(mx6_com_dcd_table)); break; case TEMP_INDUSTRIAL: case TEMP_AUTOMOTIVE: default: puts("Industrial temperature grade DDR3 timings.\n"); ddr_init(mx6_it_dcd_table, ARRAY_SIZE(mx6_it_dcd_table)); break; }; udelay(100); spl_dram_perform_cal(); } void board_init_f(ulong dummy) { /* setup AIPS and disable watchdog */ arch_cpu_init(); ccgr_init(); gpr_init(); /* iomux */ board_early_init_f(); /* setup GP timer */ timer_init(); /* UART clocks enabled and gd valid - init serial console */ preloader_console_init(); #ifndef CONFIG_TDX_APALIS_IMX6_V1_0 /* Make sure we use dte mode */ setup_dtemode_uart(); #endif /* DDR initialization */ spl_dram_init(); /* Clear the BSS. */ memset(__bss_start, 0, __bss_end - __bss_start); /* load/boot image from boot device */ board_init_r(NULL, 0); } #ifdef CONFIG_SPL_LOAD_FIT int board_fit_config_name_match(const char *name) { if (!strcmp(name, "imx6-apalis")) return 0; return -1; } #endif void reset_cpu(void) { } #endif /* CONFIG_SPL_BUILD */ static struct mxc_serial_plat mxc_serial_plat = { .reg = (struct mxc_uart *)UART1_BASE, .use_dte = true, }; U_BOOT_DRVINFO(mxc_serial) = { .name = "serial_mxc", .plat = &mxc_serial_plat, };