diff options
Diffstat (limited to 'board/bachmann/ot1200/ot1200.c')
| -rw-r--r-- | board/bachmann/ot1200/ot1200.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/board/bachmann/ot1200/ot1200.c b/board/bachmann/ot1200/ot1200.c new file mode 100644 index 0000000..0d5ede5 --- /dev/null +++ b/board/bachmann/ot1200/ot1200.c @@ -0,0 +1,251 @@ +/* + * Copyright (C) 2010-2013 Freescale Semiconductor, Inc. + * Copyright (C) 2014, Bachmann electronic GmbH + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/clock.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/iomux.h> +#include <malloc.h> +#include <asm/arch/mx6-pins.h> +#include <asm/imx-common/iomux-v3.h> +#include <asm/imx-common/mxc_i2c.h> +#include <asm/imx-common/boot_mode.h> +#include <asm/arch/crm_regs.h> +#include <mmc.h> +#include <fsl_esdhc.h> +#include <netdev.h> +#include <i2c.h> +#include <pca953x.h> +#include <asm/gpio.h> +#include <phy.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm) + +#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ + OUTPUT_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 ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | OUTPUT_40OHM | \ + PAD_CTL_HYS) + +#define SPI_PAD_CTRL (PAD_CTL_HYS | OUTPUT_40OHM | \ + PAD_CTL_SRE_FAST) + +#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | OUTPUT_40OHM | \ + PAD_CTL_HYS | PAD_CTL_ODE | PAD_CTL_SRE_FAST) + +int dram_init(void) +{ + gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); + + return 0; +} + +static iomux_v3_cfg_t const uart1_pads[] = { + 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), +}; + +static void setup_iomux_uart(void) +{ + imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); +} + +static iomux_v3_cfg_t const enet_pads[] = { + MX6_PAD_KEY_ROW1__ENET_COL | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_KEY_COL3__ENET_CRS | MUX_PAD_CTRL(ENET_PAD_CTRL), + 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_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_GPIO_18__ENET_RX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET_RXD0__ENET_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET_RXD1__ENET_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_KEY_COL2__ENET_RX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_KEY_COL0__ENET_RX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET_CRS_DV__ENET_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET_TXD0__ENET_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET_TXD1__ENET_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_KEY_ROW2__ENET_TX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_KEY_ROW0__ENET_TX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET_TX_EN__ENET_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), +}; + +static void setup_iomux_enet(void) +{ + imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); +} + +static iomux_v3_cfg_t const ecspi1_pads[] = { + MX6_PAD_DISP0_DAT3__ECSPI3_SS0 | MUX_PAD_CTRL(SPI_PAD_CTRL), + MX6_PAD_DISP0_DAT4__ECSPI3_SS1 | MUX_PAD_CTRL(SPI_PAD_CTRL), + MX6_PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), + MX6_PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), + MX6_PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), +}; + +static void setup_iomux_spi(void) +{ + imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads)); +} + +int board_early_init_f(void) +{ + setup_iomux_uart(); + setup_iomux_spi(); + + return 0; +} + +static iomux_v3_cfg_t const usdhc3_pads[] = { + MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_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), + MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD3_RST__SD3_RESET | MUX_PAD_CTRL(USDHC_PAD_CTRL), +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + return 1; +} + +struct fsl_esdhc_cfg usdhc_cfg[] = { + {USDHC3_BASE_ADDR}, +}; + +int board_mmc_init(bd_t *bis) +{ + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + usdhc_cfg[0].max_bus_width = 8; + + imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads)); + + return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); +} + +#define PC MUX_PAD_CTRL(I2C_PAD_CTRL) + +/* I2C3 - IO expander */ +static struct i2c_pads_info i2c_pad_info2 = { + .scl = { + .i2c_mode = MX6_PAD_EIM_D17__I2C3_SCL | PC, + .gpio_mode = MX6_PAD_EIM_D17__GPIO3_IO17 | PC, + .gp = IMX_GPIO_NR(3, 17) + }, + .sda = { + .i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC, + .gpio_mode = MX6_PAD_EIM_D18__GPIO3_IO18 | PC, + .gp = IMX_GPIO_NR(3, 18) + } +}; + +static iomux_v3_cfg_t const pwm_pad[] = { + MX6_PAD_SD1_CMD__PWM4_OUT | MUX_PAD_CTRL(OUTPUT_40OHM), +}; + +static void leds_on(void) +{ + /* turn on all possible leds connected via GPIO expander */ + i2c_set_bus_num(2); + pca953x_set_dir(CONFIG_SYS_I2C_PCA953X_ADDR, 0xffff, PCA953X_DIR_OUT); + pca953x_set_val(CONFIG_SYS_I2C_PCA953X_ADDR, 0xffff, 0x0); +} + +static void backlight_lcd_off(void) +{ + unsigned gpio = IMX_GPIO_NR(2, 0); + gpio_direction_output(gpio, 0); + + gpio = IMX_GPIO_NR(2, 3); + gpio_direction_output(gpio, 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(); + + bus = fec_get_miibus(base, -1); + if (!bus) + return 0; + + /* scan phy 0 and 5 */ + phydev = phy_find_by_mask(bus, 0x21, PHY_INTERFACE_MODE_RGMII); + if (!phydev) { + free(bus); + return 0; + } + + /* depending on the phy address we can detect our board version */ + if (phydev->addr == 0) + setenv("boardver", ""); + else + setenv("boardver", "mr"); + + 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); + } + return 0; +} + +int board_init(void) +{ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + backlight_lcd_off(); + + setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); + + leds_on(); + + /* enable ecspi3 clocks */ + enable_cspi_clock(1, 2); + + return 0; +} + +int checkboard(void) +{ + puts("Board: "CONFIG_SYS_BOARD"\n"); + return 0; +} + +#ifdef CONFIG_CMD_BMODE +static const struct boot_mode board_boot_modes[] = { + /* 4 bit bus width */ + {"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)}, + {NULL, 0}, +}; +#endif + +int misc_init_r(void) +{ +#ifdef CONFIG_CMD_BMODE + add_board_boot_modes(board_boot_modes); +#endif + return 0; +} |