diff options
Diffstat (limited to 'board/technexion/pico-imx6/pico-imx6.c')
| -rw-r--r-- | board/technexion/pico-imx6/pico-imx6.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/board/technexion/pico-imx6/pico-imx6.c b/board/technexion/pico-imx6/pico-imx6.c new file mode 100644 index 0000000000..f8eeb40555 --- /dev/null +++ b/board/technexion/pico-imx6/pico-imx6.c @@ -0,0 +1,362 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2013 Freescale Semiconductor, Inc. + * Copyright (C) 2014 O.S. Systems Software LTDA. + * + * Author: Fabio Estevam <festevam@gmail.com> + */ + +#include <asm/arch/clock.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/iomux.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/mx6-pins.h> +#include <asm/arch/sys_proto.h> +#include <asm/gpio.h> +#include <asm/arch/mxc_hdmi.h> +#include <asm/mach-imx/video.h> +#include <asm/mach-imx/iomux-v3.h> +#include <asm/io.h> +#include <linux/sizes.h> +#include <common.h> +#include <miiphy.h> +#include <netdev.h> +#include <phy.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 ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ + PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) + +#define ETH_PHY_RESET IMX_GPIO_NR(1, 26) +#define LVDS0_EN IMX_GPIO_NR(2, 8) +#define LVDS0_BL_EN IMX_GPIO_NR(2, 9) + +int dram_init(void) +{ + gd->ram_size = imx_ddr_size(); + + return 0; +} + +static iomux_v3_cfg_t const uart1_pads[] = { + IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), + IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), +}; + +static void setup_iomux_uart(void) +{ + SETUP_IOMUX_PADS(uart1_pads); +} + +static iomux_v3_cfg_t const lvds_pads[] = { + /* lvds */ + IOMUX_PADS(PAD_SD4_DAT0__GPIO2_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_SD4_DAT1__GPIO2_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02 | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03 | MUX_PAD_CTRL(NO_PAD_CTRL)), +}; + +static iomux_v3_cfg_t const enet_pads[] = { + IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | + MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | + MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)), + /* AR8035 PHY Reset */ + IOMUX_PADS(PAD_ENET_RXD1__GPIO1_IO26 | MUX_PAD_CTRL(NO_PAD_CTRL)), +}; + +static void setup_iomux_enet(void) +{ + SETUP_IOMUX_PADS(enet_pads); + + /* Reset AR8031 PHY */ + gpio_request(ETH_PHY_RESET, "enet_phy_reset"); + gpio_direction_output(ETH_PHY_RESET, 0); + udelay(500); + gpio_set_value(ETH_PHY_RESET, 1); +} + +#if defined(CONFIG_VIDEO_IPUV3) +static iomux_v3_cfg_t const ft5x06_wvga_pads[] = { + IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK), + IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02), /* HSync */ + IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03), /* VSync */ + IOMUX_PADS(PAD_DI0_PIN4__IPU1_DI0_PIN04 | MUX_PAD_CTRL(PAD_CTL_DSE_120ohm)), /* Contrast */ + IOMUX_PADS(PAD_DI0_PIN15__IPU1_DI0_PIN15), /* DISP0_DRDY */ + IOMUX_PADS(PAD_DISP0_DAT0__IPU1_DISP0_DATA00), + IOMUX_PADS(PAD_DISP0_DAT1__IPU1_DISP0_DATA01), + IOMUX_PADS(PAD_DISP0_DAT2__IPU1_DISP0_DATA02), + IOMUX_PADS(PAD_DISP0_DAT3__IPU1_DISP0_DATA03), + IOMUX_PADS(PAD_DISP0_DAT4__IPU1_DISP0_DATA04), + IOMUX_PADS(PAD_DISP0_DAT5__IPU1_DISP0_DATA05), + IOMUX_PADS(PAD_DISP0_DAT6__IPU1_DISP0_DATA06), + IOMUX_PADS(PAD_DISP0_DAT7__IPU1_DISP0_DATA07), + IOMUX_PADS(PAD_DISP0_DAT8__IPU1_DISP0_DATA08), + IOMUX_PADS(PAD_DISP0_DAT9__IPU1_DISP0_DATA09), + IOMUX_PADS(PAD_DISP0_DAT10__IPU1_DISP0_DATA10), + IOMUX_PADS(PAD_DISP0_DAT11__IPU1_DISP0_DATA11), + IOMUX_PADS(PAD_DISP0_DAT12__IPU1_DISP0_DATA12), + IOMUX_PADS(PAD_DISP0_DAT13__IPU1_DISP0_DATA13), + IOMUX_PADS(PAD_DISP0_DAT14__IPU1_DISP0_DATA14), + IOMUX_PADS(PAD_DISP0_DAT15__IPU1_DISP0_DATA15), + IOMUX_PADS(PAD_DISP0_DAT16__IPU1_DISP0_DATA16), + IOMUX_PADS(PAD_DISP0_DAT17__IPU1_DISP0_DATA17), + IOMUX_PADS(PAD_DISP0_DAT18__IPU1_DISP0_DATA18), + IOMUX_PADS(PAD_DISP0_DAT19__IPU1_DISP0_DATA19), + IOMUX_PADS(PAD_DISP0_DAT20__IPU1_DISP0_DATA20), + IOMUX_PADS(PAD_DISP0_DAT21__IPU1_DISP0_DATA21), + IOMUX_PADS(PAD_DISP0_DAT22__IPU1_DISP0_DATA22), + IOMUX_PADS(PAD_DISP0_DAT23__IPU1_DISP0_DATA23), + IOMUX_PADS(PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_BKLEN */ + IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_VDDEN */ +}; + +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; + + /* set CH0 data width to 24bit (IOMUXC_GPR2:5 0=18bit, 1=24bit) */ + u32 reg = readl(&iomux->gpr[2]); + reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT; + writel(reg, &iomux->gpr[2]); + + /* Enable Backlight - use GPIO for Brightness adjustment */ + SETUP_IOMUX_PAD(PAD_SD4_DAT1__GPIO2_IO09); + gpio_request(IMX_GPIO_NR(2, 9), "backlight_enable"); + gpio_direction_output(IMX_GPIO_NR(2, 9), 1); + + gpio_request(IMX_GPIO_NR(2, 8), "brightness"); + SETUP_IOMUX_PAD(PAD_SD4_DAT0__GPIO2_IO08); + gpio_direction_output(IMX_GPIO_NR(2, 8), 1); +} + +static void enable_ft5x06_wvga(struct display_info_t const *dev) +{ + SETUP_IOMUX_PADS(ft5x06_wvga_pads); + + gpio_request(IMX_GPIO_NR(2, 10), "parallel_enable"); + gpio_request(IMX_GPIO_NR(2, 11), "parallel_brightness"); + gpio_direction_output(IMX_GPIO_NR(2, 10), 1); + gpio_direction_output(IMX_GPIO_NR(2, 11), 1); +} + +struct display_info_t const displays[] = {{ + .bus = 1, + .addr = 0x38, + .pixfmt = IPU_PIX_FMT_RGB24, + .detect = NULL, + .enable = enable_ft5x06_wvga, + .mode = { + .name = "FT5x06-WVGA", + .refresh = 60, + .xres = 800, + .yres = 480, + .pixclock = 30303, + .left_margin = 45, + .right_margin = 210, + .upper_margin = 22, + .lower_margin = 22, + .hsync_len = 1, + .vsync_len = 1, + .sync = 0, + .vmode = FB_VMODE_NONINTERLACED +} }, { + .bus = -1, + .addr = 0, + .pixfmt = IPU_PIX_FMT_RGB24, + .detect = NULL, + .enable = enable_lvds, + .mode = { + .name = "hj070na", + .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 = -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 +} } }; +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; + + /* Setup HSYNC, VSYNC, DISP_CLK for debugging purposes */ + SETUP_IOMUX_PADS(lvds_pads); + gpio_request(LVDS0_EN, "lvds0_enable"); + gpio_request(LVDS0_BL_EN, "lvds0_bl_enable"); + gpio_direction_output(LVDS0_EN, 1); + gpio_direction_output(LVDS0_BL_EN, 1); + + enable_ipu_clock(); + imx_setup_hdmi(); + + reg = __raw_readl(&mxc_ccm->CCGR3); + reg |= MXC_CCM_CCGR3_LDB_DI0_MASK | MXC_CCM_CCGR3_LDB_DI1_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 << 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 | MXC_CCM_CSCMR2_LDB_DI1_IPU_DIV; + writel(reg, &mxc_ccm->cscmr2); + + reg = readl(&mxc_ccm->chsccdr); + reg |= (CHSCCDR_CLK_SEL_LDB_DI0 + << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET); + reg |= (CHSCCDR_CLK_SEL_LDB_DI0 + << MXC_CCM_CHSCCDR_IPU1_DI1_CLK_SEL_OFFSET); + writel(reg, &mxc_ccm->chsccdr); + + reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES + | IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_LOW + | IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW + | IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG + | IOMUXC_GPR2_DATA_WIDTH_CH1_24BIT + | IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG + | IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT + | IOMUXC_GPR2_LVDS_CH1_MODE_ENABLED_DI0 + | 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 + << IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET); + + writel(reg, &iomux->gpr[3]); +} +#endif /* CONFIG_VIDEO_IPUV3 */ + +int board_early_init_f(void) +{ + setup_iomux_uart(); + +#if defined(CONFIG_VIDEO_IPUV3) + setup_display(); +#endif + + return 0; +} + +int board_eth_init(bd_t *bis) +{ + setup_iomux_enet(); + + return cpu_eth_init(bis); +} + +int board_phy_config(struct phy_device *phydev) +{ + unsigned short val; + + /* To enable AR8035 ouput a 125MHz clk from CLK_25M */ + phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7); + phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016); + phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007); + + val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe); + val &= 0xffe7; + val |= 0x18; + phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val); + + /* introduce tx clock delay */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5); + val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e); + val |= 0x0100; + phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val); + + if (phydev->drv->config) + phydev->drv->config(phydev); + + return 0; +} + +int overwrite_console(void) +{ + return 1; +} + +int board_late_init(void) +{ + if (is_mx6dq()) + env_set("board_rev", "MX6Q"); + else + env_set("board_rev", "MX6DL"); + + return 0; +} + +int board_init(void) +{ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + return 0; +} + +int checkboard(void) +{ + puts("Board: PICO-IMX6\n"); + + return 0; +} |