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u-boot/board/embest/mx6boards/mx6boards.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

610 lines
17 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
/*
* 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>.
*/
#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 <linux/errno.h>
#include <asm/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/mach-imx/spi.h>
#include <asm/mach-imx/video.h>
#include <i2c.h>
#include <input.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>
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)
{
int ret;
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);
} else {
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 -EINVAL;
}
ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
if (ret)
return ret;
}
return 0;
}
#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),
};
int board_spi_cs_gpio(unsigned bus, unsigned cs)
{
return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(2, 30)) : -1;
}
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 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;
}
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