diff options
Diffstat (limited to 'board/tqc/tqma6/tqma6.c')
| -rw-r--r-- | board/tqc/tqma6/tqma6.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/board/tqc/tqma6/tqma6.c b/board/tqc/tqma6/tqma6.c new file mode 100644 index 0000000000..69c4551eca --- /dev/null +++ b/board/tqc/tqma6/tqma6.c @@ -0,0 +1,262 @@ +/* + * Copyright (C) 2012 Freescale Semiconductor, Inc. + * Author: Fabio Estevam <fabio.estevam@freescale.com> + * + * Copyright (C) 2013, 2014 TQ Systems (ported SabreSD to TQMa6x) + * Author: Markus Niebel <markus.niebel@tq-group.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/arch/clock.h> +#include <asm/arch/mx6-pins.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/iomux.h> +#include <asm/arch/sys_proto.h> +#include <asm/errno.h> +#include <asm/gpio.h> +#include <asm/io.h> +#include <asm/imx-common/mxc_i2c.h> +#include <common.h> +#include <fsl_esdhc.h> +#include <libfdt.h> +#include <i2c.h> +#include <mmc.h> +#include <power/pfuze100_pmic.h> +#include <power/pmic.h> + +#include "tqma6_bb.h" + +DECLARE_GLOBAL_DATA_PTR; + +#define USDHC_CLK_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \ + 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 GPIO_OUT_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \ + PAD_CTL_DSE_40ohm | PAD_CTL_HYS) + +#define GPIO_IN_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \ + PAD_CTL_DSE_40ohm | PAD_CTL_HYS) + +#define SPI_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ + PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) + +#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) + +int dram_init(void) +{ + gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); + + return 0; +} + +static const uint16_t tqma6_emmc_dsr = 0x0100; + +/* eMMC on USDHCI3 always present */ +static iomux_v3_cfg_t const tqma6_usdhc3_pads[] = { + NEW_PAD_CTRL(MX6_PAD_SD3_CLK__SD3_CLK, USDHC_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_SD3_CMD__SD3_CMD, USDHC_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_SD3_DAT0__SD3_DATA0, USDHC_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_SD3_DAT1__SD3_DATA1, USDHC_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_SD3_DAT2__SD3_DATA2, USDHC_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_SD3_DAT3__SD3_DATA3, USDHC_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_SD3_DAT4__SD3_DATA4, USDHC_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_SD3_DAT5__SD3_DATA5, USDHC_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_SD3_DAT6__SD3_DATA6, USDHC_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_SD3_DAT7__SD3_DATA7, USDHC_PAD_CTRL), + /* eMMC reset */ + NEW_PAD_CTRL(MX6_PAD_SD3_RST__SD3_RESET, GPIO_OUT_PAD_CTRL), +}; + +/* + * According to board_mmc_init() the following map is done: + * (U-boot device node) (Physical Port) + * mmc0 eMMC (SD3) on TQMa6 + * mmc1 .. n optional slots used on baseboard + */ +struct fsl_esdhc_cfg tqma6_usdhc_cfg = { + .esdhc_base = USDHC3_BASE_ADDR, + .max_bus_width = 8, +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; + int ret = 0; + + if (cfg->esdhc_base == USDHC3_BASE_ADDR) + /* eMMC/uSDHC3 is always present */ + ret = 1; + else + ret = tqma6_bb_board_mmc_getcd(mmc); + + return ret; +} + +int board_mmc_getwp(struct mmc *mmc) +{ + struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; + int ret = 0; + + if (cfg->esdhc_base == USDHC3_BASE_ADDR) + /* eMMC/uSDHC3 is always present */ + ret = 0; + else + ret = tqma6_bb_board_mmc_getwp(mmc); + + return ret; +} + +int board_mmc_init(bd_t *bis) +{ + imx_iomux_v3_setup_multiple_pads(tqma6_usdhc3_pads, + ARRAY_SIZE(tqma6_usdhc3_pads)); + tqma6_usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + if (fsl_esdhc_initialize(bis, &tqma6_usdhc_cfg)) { + puts("Warning: failed to initialize eMMC dev\n"); + } else { + struct mmc *mmc = find_mmc_device(0); + if (mmc) + mmc_set_dsr(mmc, tqma6_emmc_dsr); + } + + tqma6_bb_board_mmc_init(bis); + + return 0; +} + +static iomux_v3_cfg_t const tqma6_ecspi1_pads[] = { + /* SS1 */ + NEW_PAD_CTRL(MX6_PAD_EIM_D19__GPIO3_IO19, SPI_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_EIM_D16__ECSPI1_SCLK, SPI_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_EIM_D17__ECSPI1_MISO, SPI_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_EIM_D18__ECSPI1_MOSI, SPI_PAD_CTRL), +}; + +static unsigned const tqma6_ecspi1_cs[] = { + IMX_GPIO_NR(3, 19), +}; + +static void tqma6_iomuxc_spi(void) +{ + unsigned i; + + for (i = 0; i < ARRAY_SIZE(tqma6_ecspi1_cs); ++i) + gpio_direction_output(tqma6_ecspi1_cs[i], 1); + imx_iomux_v3_setup_multiple_pads(tqma6_ecspi1_pads, + ARRAY_SIZE(tqma6_ecspi1_pads)); +} + +static struct i2c_pads_info tqma6_i2c3_pads = { + /* I2C3: on board LM75, M24C64, */ + .scl = { + .i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__I2C3_SCL, + I2C_PAD_CTRL), + .gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__GPIO1_IO05, + I2C_PAD_CTRL), + .gp = IMX_GPIO_NR(1, 5) + }, + .sda = { + .i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__I2C3_SDA, + I2C_PAD_CTRL), + .gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__GPIO1_IO06, + I2C_PAD_CTRL), + .gp = IMX_GPIO_NR(1, 6) + } +}; + +static void tqma6_setup_i2c(void) +{ + /* use logical index for bus, e.g. I2C1 -> 0 */ + setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &tqma6_i2c3_pads); +} + +int board_early_init_f(void) +{ + return tqma6_bb_board_early_init_f(); +} + +int board_init(void) +{ + /* address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + tqma6_iomuxc_spi(); + tqma6_setup_i2c(); + + tqma6_bb_board_init(); + + return 0; +} + +static const char *tqma6_get_boardname(void) +{ + u32 cpurev = get_cpu_rev(); + + switch ((cpurev & 0xFF000) >> 12) { + case MXC_CPU_MX6SOLO: + return "TQMa6S"; + break; + case MXC_CPU_MX6DL: + return "TQMa6DL"; + break; + case MXC_CPU_MX6D: + return "TQMa6D"; + break; + case MXC_CPU_MX6Q: + return "TQMa6Q"; + break; + default: + return "??"; + }; +} + +int board_late_init(void) +{ + struct pmic *p; + u32 reg; + + setenv("board_name", tqma6_get_boardname()); + + /* + * configure PFUZE100 PMIC: + * TODO: should go to power_init_board if bus switching is + * fixed in generic power code + */ + power_pfuze100_init(TQMA6_PFUZE100_I2C_BUS); + p = pmic_get("PFUZE100_PMIC"); + if (p && !pmic_probe(p)) { + pmic_reg_read(p, PFUZE100_DEVICEID, ®); + printf("PMIC: PFUZE100_PMIC ID=0x%02x\n", reg); + } + + tqma6_bb_board_late_init(); + + return 0; +} + +int checkboard(void) +{ + printf("Board: %s on a %s\n", tqma6_get_boardname(), + tqma6_bb_get_boardname()); + return 0; +} + +/* + * Device Tree Support + */ +#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) +void ft_board_setup(void *blob, bd_t *bd) +{ + /* bring in eMMC dsr settings */ + do_fixup_by_path_u32(blob, + "/soc/aips-bus@02100000/usdhc@02198000", + "dsr", tqma6_emmc_dsr, 2); + tqma6_bb_ft_board_setup(blob, bd); +} +#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */ |
