RiOTboard and MarSBoard: add new boards support
RiOTboard is produced by Embest/Element 14 and is based on i.MX6 Solo
The following features are tested :
- UART2 (console)
- eMMC
- SDCard
- uSDCard
- Ethernet
- USB Host (through 4 ports hub)
- HDMI output
- I2C 1/2/3
- LVDS TFT with LCD8000-97C from Embest/Element 14
Boot on eMMC and through USB loader are tested.
For more informations on this board : http://www.riotboard.org/
MarSBoard is produced by Embest/Element 14 and is based on i.MX6 Dual
The following features are tested :
- UART2 (console)
- eMMC
- uSDCard
- Ethernet
- USB Host (through 2 ports hub)
- HDMI output
- I2C 1/2
- SPI NOR Flash
- LVDS TFT with LCD8000-97C from Embest/Element 14
Boot on SPI NOR and through USB loader are tested.
For more informations on this board :
http://www.embest-tech.com/shop/star/marsboard.html
Both boards are supported by the same code base as they are based on a
common trunk of schematics.
Signed-off-by: Eric Bénard <eric@eukrea.com>
Acked-by: Stefano Babic <sbabic@denx.de>
diff --git a/board/embest/mx6boards/Makefile b/board/embest/mx6boards/Makefile
new file mode 100644
index 0000000..467fb50
--- /dev/null
+++ b/board/embest/mx6boards/Makefile
@@ -0,0 +1,9 @@
+#
+# Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+#
+# (C) Copyright 2011 Freescale Semiconductor, Inc.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y := mx6boards.o
diff --git a/board/embest/mx6boards/mx6boards.c b/board/embest/mx6boards/mx6boards.c
new file mode 100644
index 0000000..6d86961
--- /dev/null
+++ b/board/embest/mx6boards/mx6boards.c
@@ -0,0 +1,607 @@
+/*
+ * Copyright (C) 2014 Eukréa Electromatique
+ * Author: Eric Bénard <eric@eukrea.com>
+ * Fabio Estevam <fabio.estevam@freescale.com>
+ * Jon Nettleton <jon.nettleton@gmail.com>
+ *
+ * based on sabresd.c which is :
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ * and on hummingboard.c which is :
+ * Copyright (C) 2013 SolidRun ltd.
+ * Copyright (C) 2013 Jon Nettleton <jon.nettleton@gmail.com>.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/boot_mode.h>
+#include <asm/imx-common/mxc_i2c.h>
+#include <asm/imx-common/video.h>
+#include <i2c.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <asm/arch/mxc_hdmi.h>
+#include <asm/arch/crm_regs.h>
+#include <linux/fb.h>
+#include <ipu_pixfmt.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.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 USDHC_PAD_CLK_CTRL (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 ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \
+ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+#define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
+ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+#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 SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+static int board_type = -1;
+#define BOARD_IS_MARSBOARD 0
+#define BOARD_IS_RIOTBOARD 1
+
+int dram_init(void)
+{
+ gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
+
+ return 0;
+}
+
+static iomux_v3_cfg_t const uart2_pads[] = {
+ MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+ MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+ imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
+}
+
+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),
+ /* GPIO16 -> AR8035 25MHz */
+ MX6_PAD_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(NO_PAD_CTRL),
+ MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(NO_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),
+ /* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
+ MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
+ MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+ MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+ 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_PD),
+ /* AR8035 PHY Reset */
+ MX6_PAD_EIM_D31__GPIO3_IO31 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+ /* AR8035 PHY Interrupt */
+ MX6_PAD_ENET_TX_EN__GPIO1_IO28 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+};
+
+static void setup_iomux_enet(void)
+{
+ imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
+
+ /* Reset AR8035 PHY */
+ gpio_direction_output(IMX_GPIO_NR(3, 31) , 0);
+ mdelay(2);
+ gpio_set_value(IMX_GPIO_NR(3, 31), 1);
+}
+
+int mx6_rgmii_rework(struct phy_device *phydev)
+{
+ /* from linux/arch/arm/mach-imx/mach-imx6q.c :
+ * Ar803x phy SmartEEE feature cause link status generates glitch,
+ * which cause ethernet link down/up issue, so disable SmartEEE
+ */
+ phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
+ phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x805d);
+ phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4003);
+
+ return 0;
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+ mx6_rgmii_rework(phydev);
+
+ if (phydev->drv->config)
+ phydev->drv->config(phydev);
+
+ return 0;
+}
+
+iomux_v3_cfg_t const usdhc2_pads[] = {
+ MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CLK_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_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL), /* WP */
+ MX6_PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
+};
+
+iomux_v3_cfg_t const usdhc3_pads[] = {
+ MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CLK_CTRL),
+ MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+iomux_v3_cfg_t const riotboard_usdhc3_pads[] = {
+ MX6_PAD_SD3_DAT4__GPIO7_IO01 | MUX_PAD_CTRL(NO_PAD_CTRL), /* WP */
+ MX6_PAD_SD3_DAT5__GPIO7_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
+};
+
+iomux_v3_cfg_t const usdhc4_pads[] = {
+ MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CLK_CTRL),
+ MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ /* eMMC RST */
+ MX6_PAD_NANDF_ALE__GPIO6_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg usdhc_cfg[3] = {
+ {USDHC2_BASE_ADDR},
+ {USDHC3_BASE_ADDR},
+ {USDHC4_BASE_ADDR},
+};
+
+#define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
+#define USDHC3_CD_GPIO IMX_GPIO_NR(7, 0)
+
+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 USDHC2_BASE_ADDR:
+ ret = !gpio_get_value(USDHC2_CD_GPIO);
+ break;
+ case USDHC3_BASE_ADDR:
+ if (board_type == BOARD_IS_RIOTBOARD)
+ ret = !gpio_get_value(USDHC3_CD_GPIO);
+ else if (board_type == BOARD_IS_MARSBOARD)
+ ret = 1; /* eMMC/uSDHC3 is always present */
+ break;
+ case USDHC4_BASE_ADDR:
+ ret = 1; /* eMMC/uSDHC4 is always present */
+ break;
+ }
+
+ return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ s32 status = 0;
+ int i;
+
+ /*
+ * According to the board_mmc_init() the following map is done:
+ * (U-boot device node) (Physical Port)
+ * ** RiOTboard :
+ * mmc0 SDCard slot (bottom)
+ * mmc1 uSDCard slot (top)
+ * mmc2 eMMC
+ * ** MarSBoard :
+ * mmc0 uSDCard slot (bottom)
+ * mmc1 eMMC
+ */
+ for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
+ switch (i) {
+ case 0:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+ gpio_direction_input(USDHC2_CD_GPIO);
+ usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+ usdhc_cfg[0].max_bus_width = 4;
+ break;
+ case 1:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+ if (board_type == BOARD_IS_RIOTBOARD) {
+ imx_iomux_v3_setup_multiple_pads(
+ riotboard_usdhc3_pads,
+ ARRAY_SIZE(riotboard_usdhc3_pads));
+ gpio_direction_input(USDHC3_CD_GPIO);
+ gpio_direction_output(IMX_GPIO_NR(7, 8) , 0);
+ udelay(250);
+ gpio_set_value(IMX_GPIO_NR(7, 8), 1);
+ }
+ usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+ usdhc_cfg[1].max_bus_width = 4;
+ break;
+ case 2:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
+ usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
+ usdhc_cfg[2].max_bus_width = 4;
+ gpio_direction_output(IMX_GPIO_NR(6, 8) , 0);
+ udelay(250);
+ gpio_set_value(IMX_GPIO_NR(6, 8), 1);
+ break;
+ default:
+ printf("Warning: you configured more USDHC controllers"
+ "(%d) then supported by the board (%d)\n",
+ i + 1, CONFIG_SYS_FSL_USDHC_NUM);
+ return status;
+ }
+
+ status |= fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
+ }
+
+ return status;
+}
+#endif
+
+#ifdef CONFIG_MXC_SPI
+iomux_v3_cfg_t const ecspi1_pads[] = {
+ MX6_PAD_EIM_D16__ECSPI1_SCLK | 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_EB2__GPIO2_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static void setup_spi(void)
+{
+ imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
+}
+#endif
+
+struct i2c_pads_info i2c_pad_info1 = {
+ .scl = {
+ .i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gp = IMX_GPIO_NR(5, 27)
+ },
+ .sda = {
+ .i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gp = IMX_GPIO_NR(5, 26)
+ }
+};
+
+struct i2c_pads_info i2c_pad_info2 = {
+ .scl = {
+ .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gp = IMX_GPIO_NR(4, 12)
+ },
+ .sda = {
+ .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gp = IMX_GPIO_NR(4, 13)
+ }
+};
+
+struct i2c_pads_info i2c_pad_info3 = {
+ .scl = {
+ .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gp = IMX_GPIO_NR(1, 5)
+ },
+ .sda = {
+ .i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06
+ | MUX_PAD_CTRL(I2C_PAD_CTRL),
+ .gp = IMX_GPIO_NR(1, 6)
+ }
+};
+
+iomux_v3_cfg_t const tft_pads_riot[] = {
+ /* LCD_PWR_EN */
+ MX6_PAD_ENET_TXD1__GPIO1_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* TOUCH_INT */
+ MX6_PAD_NANDF_CS1__GPIO6_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* LED_PWR_EN */
+ MX6_PAD_NANDF_CS2__GPIO6_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* BL LEVEL */
+ MX6_PAD_SD1_CMD__GPIO1_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+iomux_v3_cfg_t const tft_pads_mars[] = {
+ /* LCD_PWR_EN */
+ MX6_PAD_ENET_TXD1__GPIO1_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* TOUCH_INT */
+ MX6_PAD_NANDF_CS1__GPIO6_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* LED_PWR_EN */
+ MX6_PAD_NANDF_CS2__GPIO6_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* BL LEVEL (PWM4) */
+ MX6_PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+#if defined(CONFIG_VIDEO_IPUV3)
+
+static void enable_lvds(struct display_info_t const *dev)
+{
+ struct iomuxc *iomux = (struct iomuxc *)
+ IOMUXC_BASE_ADDR;
+ setbits_le32(&iomux->gpr[2],
+ IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT);
+ /* set backlight level to ON */
+ if (board_type == BOARD_IS_RIOTBOARD)
+ gpio_direction_output(IMX_GPIO_NR(1, 18) , 1);
+ else if (board_type == BOARD_IS_MARSBOARD)
+ gpio_direction_output(IMX_GPIO_NR(2, 10) , 1);
+}
+
+static void disable_lvds(struct display_info_t const *dev)
+{
+ struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
+
+ /* set backlight level to OFF */
+ if (board_type == BOARD_IS_RIOTBOARD)
+ gpio_direction_output(IMX_GPIO_NR(1, 18) , 0);
+ else if (board_type == BOARD_IS_MARSBOARD)
+ gpio_direction_output(IMX_GPIO_NR(2, 10) , 0);
+
+ clrbits_le32(&iomux->gpr[2],
+ IOMUXC_GPR2_LVDS_CH0_MODE_MASK);
+}
+
+static int detect_hdmi(struct display_info_t const *dev)
+{
+ struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
+ return readb(&hdmi->phy_stat0) & HDMI_DVI_STAT;
+}
+
+static void do_enable_hdmi(struct display_info_t const *dev)
+{
+ disable_lvds(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));
+}
+
+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 = 0x1,
+ .pixfmt = IPU_PIX_FMT_LVDS666,
+ .detect = detect_i2c,
+ .enable = enable_lvds,
+ .mode = {
+ .name = "LCD8000-97C",
+ .refresh = 60,
+ .xres = 1024,
+ .yres = 768,
+ .pixclock = 15385,
+ .left_margin = 100,
+ .right_margin = 200,
+ .upper_margin = 10,
+ .lower_margin = 20,
+ .hsync_len = 20,
+ .vsync_len = 8,
+ .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 */
+ setbits_le32(&mxc_ccm->CCGR3,
+ MXC_CCM_CCGR3_LDB_DI0_MASK);
+
+ /* set LDB0 clk select to 011/011 */
+ clrsetbits_le32(&mxc_ccm->cs2cdr,
+ MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK,
+ (3 << MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET));
+
+ setbits_le32(&mxc_ccm->cscmr2,
+ MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV);
+
+ setbits_le32(&mxc_ccm->chsccdr,
+ (CHSCCDR_CLK_SEL_LDB_DI0
+ << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET));
+
+ reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
+ | 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]);
+
+ clrsetbits_le32(&iomux->gpr[3],
+ IOMUXC_GPR3_LVDS0_MUX_CTL_MASK |
+ IOMUXC_GPR3_HDMI_MUX_CTL_MASK,
+ IOMUXC_GPR3_MUX_SRC_IPU1_DI0
+ << IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
+}
+#endif /* CONFIG_VIDEO_IPUV3 */
+
+/*
+ * Do not overwrite the console
+ * Use always serial for U-Boot console
+ */
+int overwrite_console(void)
+{
+ return 1;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ setup_iomux_enet();
+
+ return cpu_eth_init(bis);
+}
+
+int board_early_init_f(void)
+{
+ u32 cputype = cpu_type(get_cpu_rev());
+
+ switch (cputype) {
+ case MXC_CPU_MX6SOLO:
+ board_type = BOARD_IS_RIOTBOARD;
+ break;
+ case MXC_CPU_MX6D:
+ board_type = BOARD_IS_MARSBOARD;
+ break;
+ }
+
+ setup_iomux_uart();
+
+ if (board_type == BOARD_IS_RIOTBOARD)
+ imx_iomux_v3_setup_multiple_pads(
+ tft_pads_riot, ARRAY_SIZE(tft_pads_riot));
+ else if (board_type == BOARD_IS_MARSBOARD)
+ imx_iomux_v3_setup_multiple_pads(
+ tft_pads_mars, ARRAY_SIZE(tft_pads_mars));
+#if defined(CONFIG_VIDEO_IPUV3)
+ /* power ON LCD */
+ gpio_direction_output(IMX_GPIO_NR(1, 29) , 1);
+ /* touch interrupt is an input */
+ gpio_direction_input(IMX_GPIO_NR(6, 14));
+ /* power ON backlight */
+ gpio_direction_output(IMX_GPIO_NR(6, 15) , 1);
+ /* set backlight level to off */
+ if (board_type == BOARD_IS_RIOTBOARD)
+ gpio_direction_output(IMX_GPIO_NR(1, 18) , 0);
+ else if (board_type == BOARD_IS_MARSBOARD)
+ gpio_direction_output(IMX_GPIO_NR(2, 10) , 0);
+ setup_display();
+#endif
+
+ return 0;
+}
+
+int board_init(void)
+{
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+ /* i2c1 : PMIC, Audio codec on RiOT, Expansion connector on MarS */
+ setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+ /* i2c2 : HDMI EDID */
+ setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
+ /* i2c3 : LVDS, Expansion connector */
+ setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info3);
+#ifdef CONFIG_MXC_SPI
+ setup_spi();
+#endif
+ return 0;
+}
+
+#ifdef CONFIG_CMD_BMODE
+static const struct boot_mode riotboard_boot_modes[] = {
+ {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
+ {"sd3", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
+ {"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
+ {NULL, 0},
+};
+static const struct boot_mode marsboard_boot_modes[] = {
+ {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
+ {"emmc", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
+ {NULL, 0},
+};
+#endif
+
+int board_late_init(void)
+{
+#ifdef CONFIG_CMD_BMODE
+ if (board_type == BOARD_IS_RIOTBOARD)
+ add_board_boot_modes(riotboard_boot_modes);
+ else if (board_type == BOARD_IS_RIOTBOARD)
+ add_board_boot_modes(marsboard_boot_modes);
+#endif
+
+ return 0;
+}
+
+int checkboard(void)
+{
+ puts("Board: ");
+ if (board_type == BOARD_IS_MARSBOARD)
+ puts("MarSBoard\n");
+ else if (board_type == BOARD_IS_RIOTBOARD)
+ puts("RIoTboard\n");
+ else
+ printf("unknown - cputype : %02x\n", cpu_type(get_cpu_rev()));
+
+ return 0;
+}