Add Boundary Devices Nitrogen6X boards
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
new file mode 100644
index 0000000..0dbb6d2
--- /dev/null
+++ b/board/boundary/nitrogen6x/nitrogen6x.c
@@ -0,0 +1,895 @@
+/*
+ * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
+ * Copyright (C) 2013, Boundary Devices <info@boundarydevices.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/sys_proto.h>
+#include <malloc.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/mxc_i2c.h>
+#include <asm/imx-common/boot_mode.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <micrel.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <linux/fb.h>
+#include <ipu_pixfmt.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/mxc_hdmi.h>
+#include <i2c.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ 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_PKE | PAD_CTL_PUE | \
+ 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_PKE | PAD_CTL_PUE | \
+ 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_PUS_100K_DOWN | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+#define BUTTON_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+#define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ 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_PKE | PAD_CTL_PUE | \
+ 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_PKE | PAD_CTL_PUE | \
+ 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 = 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);
+
+ 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
+
+u32 get_board_rev(void)
+{
+ return 0x63000;
+}
+
+#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)
+{
+ gpio_direction_output(CONFIG_SF_DEFAULT_CS, 1);
+ 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<<IOMUXC_GPR13_SATA_PHY_6_SHIFT)
+ |IOMUXC_GPR13_SATA_SATA_PHY_5_SS_DISABLED
+ |IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_9_16
+ |IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P00_DB
+ |IOMUXC_GPR13_SATA_PHY_2_TX_1P104V
+ |IOMUXC_GPR13_SATA_PHY_1_SLOW);
+
+ return 0;
+}
+#endif
+
+#if defined(CONFIG_VIDEO_IPUV3)
+
+static iomux_v3_cfg_t const backlight_pads[] = {
+ /* Backlight on RGB connector: J15 */
+ MX6_PAD_SD1_DAT3__GPIO_1_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
+#define RGB_BACKLIGHT_GP IMX_GPIO_NR(1, 21)
+
+ /* Backlight on LVDS connector: J6 */
+ MX6_PAD_SD1_CMD__GPIO_1_18 | MUX_PAD_CTRL(NO_PAD_CTRL),
+#define LVDS_BACKLIGHT_GP IMX_GPIO_NR(1, 18)
+};
+
+static iomux_v3_cfg_t const rgb_pads[] = {
+ MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,
+ MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
+ MX6_PAD_DI0_PIN2__IPU1_DI0_PIN2,
+ MX6_PAD_DI0_PIN3__IPU1_DI0_PIN3,
+ MX6_PAD_DI0_PIN4__GPIO_4_20,
+ MX6_PAD_DISP0_DAT0__IPU1_DISP0_DAT_0,
+ MX6_PAD_DISP0_DAT1__IPU1_DISP0_DAT_1,
+ MX6_PAD_DISP0_DAT2__IPU1_DISP0_DAT_2,
+ MX6_PAD_DISP0_DAT3__IPU1_DISP0_DAT_3,
+ MX6_PAD_DISP0_DAT4__IPU1_DISP0_DAT_4,
+ MX6_PAD_DISP0_DAT5__IPU1_DISP0_DAT_5,
+ MX6_PAD_DISP0_DAT6__IPU1_DISP0_DAT_6,
+ MX6_PAD_DISP0_DAT7__IPU1_DISP0_DAT_7,
+ MX6_PAD_DISP0_DAT8__IPU1_DISP0_DAT_8,
+ MX6_PAD_DISP0_DAT9__IPU1_DISP0_DAT_9,
+ MX6_PAD_DISP0_DAT10__IPU1_DISP0_DAT_10,
+ MX6_PAD_DISP0_DAT11__IPU1_DISP0_DAT_11,
+ MX6_PAD_DISP0_DAT12__IPU1_DISP0_DAT_12,
+ MX6_PAD_DISP0_DAT13__IPU1_DISP0_DAT_13,
+ MX6_PAD_DISP0_DAT14__IPU1_DISP0_DAT_14,
+ MX6_PAD_DISP0_DAT15__IPU1_DISP0_DAT_15,
+ MX6_PAD_DISP0_DAT16__IPU1_DISP0_DAT_16,
+ MX6_PAD_DISP0_DAT17__IPU1_DISP0_DAT_17,
+ MX6_PAD_DISP0_DAT18__IPU1_DISP0_DAT_18,
+ MX6_PAD_DISP0_DAT19__IPU1_DISP0_DAT_19,
+ MX6_PAD_DISP0_DAT20__IPU1_DISP0_DAT_20,
+ MX6_PAD_DISP0_DAT21__IPU1_DISP0_DAT_21,
+ MX6_PAD_DISP0_DAT22__IPU1_DISP0_DAT_22,
+ MX6_PAD_DISP0_DAT23__IPU1_DISP0_DAT_23,
+};
+
+struct display_info_t {
+ int bus;
+ int addr;
+ int pixfmt;
+ int (*detect)(struct display_info_t const *dev);
+ void (*enable)(struct display_info_t const *dev);
+ struct fb_videomode mode;
+};
+
+
+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_PHY_HPD;
+}
+
+static void enable_hdmi(struct display_info_t const *dev)
+{
+ struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
+ u8 reg;
+ printf("%s: setup HDMI monitor\n", __func__);
+ reg = readb(&hdmi->phy_conf0);
+ reg |= HDMI_PHY_CONF0_PDZ_MASK;
+ writeb(reg, &hdmi->phy_conf0);
+
+ udelay(3000);
+ reg |= HDMI_PHY_CONF0_ENTMDS_MASK;
+ writeb(reg, &hdmi->phy_conf0);
+ udelay(3000);
+ reg |= HDMI_PHY_CONF0_GEN2_TXPWRON_MASK;
+ writeb(reg, &hdmi->phy_conf0);
+ writeb(HDMI_MC_PHYRSTZ_ASSERT, &hdmi->mc_phyrstz);
+}
+
+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 = 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;
+ struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
+
+ int reg;
+
+ /* Turn on LDB0,IPU,IPU DI0 clocks */
+ reg = __raw_readl(&mxc_ccm->CCGR3);
+ reg |= MXC_CCM_CCGR3_IPU1_IPU_DI0_OFFSET
+ |MXC_CCM_CCGR3_LDB_DI0_MASK;
+ writel(reg, &mxc_ccm->CCGR3);
+
+ /* Turn on HDMI PHY clock */
+ reg = __raw_readl(&mxc_ccm->CCGR2);
+ reg |= MXC_CCM_CCGR2_HDMI_TX_IAHBCLK_MASK
+ |MXC_CCM_CCGR2_HDMI_TX_ISFRCLK_MASK;
+ writel(reg, &mxc_ccm->CCGR2);
+
+ /* clear HDMI PHY reset */
+ writeb(HDMI_MC_PHYRSTZ_DEASSERT, &hdmi->mc_phyrstz);
+
+ /* set PFD1_FRAC to 0x13 == 455 MHz (480*18)/0x13 */
+ writel(ANATOP_PFD_480_PFD1_FRAC_MASK, &anatop->pfd_480_clr);
+ writel(0x13<<ANATOP_PFD_480_PFD1_FRAC_SHIFT, &anatop->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<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
+ |(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
+ writel(reg, &mxc_ccm->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 &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK
+ |MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK
+ |MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
+ reg |= (CHSCCDR_CLK_SEL_LDB_DI0
+ <<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET)
+ |(CHSCCDR_PODF_DIVIDE_BY_3
+ <<MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET)
+ |(CHSCCDR_IPU_PRE_CLK_540M_PFD
+ <<MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET);
+ writel(reg, &mxc_ccm->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_MUX_SRC_IPU1_DI0
+ <<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
+ writel(reg, &iomux->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;
+}