diff options
Diffstat (limited to 'qemu/roms/u-boot/board/syteco/zmx25/zmx25.c')
| -rw-r--r-- | qemu/roms/u-boot/board/syteco/zmx25/zmx25.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/syteco/zmx25/zmx25.c b/qemu/roms/u-boot/board/syteco/zmx25/zmx25.c new file mode 100644 index 000000000..bdbf02a06 --- /dev/null +++ b/qemu/roms/u-boot/board/syteco/zmx25/zmx25.c @@ -0,0 +1,174 @@ +/* + * (c) 2011 Graf-Syteco, Matthias Weisser + * <weisserm@arcor.de> + * + * Based on tx25.c: + * (C) Copyright 2009 DENX Software Engineering + * Author: John Rigby <jrigby@gmail.com> + * + * Based on imx27lite.c: + * Copyright (C) 2008,2009 Eric Jarrige <jorasse@users.sourceforge.net> + * Copyright (C) 2009 Ilya Yanok <yanok@emcraft.com> + * And: + * RedBoot tx25_misc.c Copyright (C) 2009 Red Hat + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <asm/gpio.h> +#include <asm/io.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/iomux-mx25.h> + +DECLARE_GLOBAL_DATA_PTR; + +int board_init() +{ + static const iomux_v3_cfg_t sdhc1_pads[] = { + NEW_PAD_CTRL(MX25_PAD_SD1_CMD__SD1_CMD, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_SD1_CLK__SD1_CLK, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_SD1_DATA0__SD1_DATA0, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_SD1_DATA1__SD1_DATA1, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_SD1_DATA2__SD1_DATA2, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_SD1_DATA3__SD1_DATA3, NO_PAD_CTRL), + }; + + static const iomux_v3_cfg_t dig_out_pads[] = { + MX25_PAD_CSI_D8__GPIO_1_7, /* Ouput 1 Ctrl */ + MX25_PAD_CSI_D7__GPIO_1_6, /* Ouput 2 Ctrl */ + NEW_PAD_CTRL(MX25_PAD_CSI_D6__GPIO_1_31, 0), /* Ouput 1 Stat */ + NEW_PAD_CTRL(MX25_PAD_CSI_D5__GPIO_1_30, 0), /* Ouput 2 Stat */ + }; + + static const iomux_v3_cfg_t led_pads[] = { + MX25_PAD_CSI_D9__GPIO_4_21, + MX25_PAD_CSI_D4__GPIO_1_29, + }; + + static const iomux_v3_cfg_t can_pads[] = { + NEW_PAD_CTRL(MX25_PAD_GPIO_A__CAN1_TX, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_GPIO_B__CAN1_RX, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_GPIO_C__CAN2_TX, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_GPIO_D__CAN2_RX, NO_PAD_CTRL), + }; + + static const iomux_v3_cfg_t i2c3_pads[] = { + MX25_PAD_CSPI1_SS1__I2C3_DAT, + MX25_PAD_GPIO_E__I2C3_CLK, + }; + + icache_enable(); + + /* Setup of core voltage selection pin to run at 1.4V */ + imx_iomux_v3_setup_pad(MX25_PAD_EXT_ARMCLK__GPIO_3_15); /* VCORE */ + gpio_direction_output(IMX_GPIO_NR(3, 15), 1); + + /* Setup of SD card pins*/ + imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads)); + + /* Setup of digital output for USB power and OC */ + imx_iomux_v3_setup_pad(MX25_PAD_CSI_D3__GPIO_1_28); /* USB Power */ + gpio_direction_output(IMX_GPIO_NR(1, 28), 1); + + imx_iomux_v3_setup_pad(MX25_PAD_CSI_D2__GPIO_1_27); /* USB OC */ + gpio_direction_input(IMX_GPIO_NR(1, 18)); + + /* Setup of digital output control pins */ + imx_iomux_v3_setup_multiple_pads(dig_out_pads, + ARRAY_SIZE(dig_out_pads)); + + /* Switch both output drivers off */ + gpio_direction_output(IMX_GPIO_NR(1, 7), 0); + gpio_direction_output(IMX_GPIO_NR(1, 6), 0); + + /* Setup of key input pin */ + imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX25_PAD_KPP_ROW0__GPIO_2_29, 0)); + gpio_direction_input(IMX_GPIO_NR(2, 29)); + + /* Setup of status LED outputs */ + imx_iomux_v3_setup_multiple_pads(led_pads, ARRAY_SIZE(led_pads)); + + /* Switch both LEDs off */ + gpio_direction_output(IMX_GPIO_NR(4, 21), 0); + gpio_direction_output(IMX_GPIO_NR(1, 29), 0); + + /* Setup of CAN1 and CAN2 signals */ + imx_iomux_v3_setup_multiple_pads(can_pads, ARRAY_SIZE(can_pads)); + + /* Setup of I2C3 signals */ + imx_iomux_v3_setup_multiple_pads(i2c3_pads, ARRAY_SIZE(i2c3_pads)); + + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + return 0; +} + +int board_late_init(void) +{ + const char *e; + +#ifdef CONFIG_FEC_MXC +/* + * FIXME: need to revisit this + * The original code enabled PUE and 100-k pull-down without PKE, so the right + * value here is likely: + * 0 for no pull + * or: + * PAD_CTL_PUS_100K_DOWN for 100-k pull-down + */ +#define FEC_OUT_PAD_CTRL 0 + + static const iomux_v3_cfg_t fec_pads[] = { + MX25_PAD_FEC_TX_CLK__FEC_TX_CLK, + MX25_PAD_FEC_RX_DV__FEC_RX_DV, + MX25_PAD_FEC_RDATA0__FEC_RDATA0, + NEW_PAD_CTRL(MX25_PAD_FEC_TDATA0__FEC_TDATA0, FEC_OUT_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_FEC_TX_EN__FEC_TX_EN, FEC_OUT_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_FEC_MDC__FEC_MDC, FEC_OUT_PAD_CTRL), + MX25_PAD_FEC_MDIO__FEC_MDIO, + MX25_PAD_FEC_RDATA1__FEC_RDATA1, + NEW_PAD_CTRL(MX25_PAD_FEC_TDATA1__FEC_TDATA1, FEC_OUT_PAD_CTRL), + + MX25_PAD_UPLL_BYPCLK__GPIO_3_16, /* LAN-RESET */ + MX25_PAD_UART2_CTS__FEC_RX_ER, /* FEC_RX_ERR */ + }; + + imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads)); + + /* assert PHY reset (low) */ + gpio_direction_output(IMX_GPIO_NR(3, 16), 0); + + udelay(5000); + + /* deassert PHY reset */ + gpio_set_value(IMX_GPIO_NR(3, 16), 1); + + udelay(5000); +#endif + + e = getenv("gs_base_board"); + if (e != NULL) { + if (strcmp(e, "G283") == 0) { + int key = gpio_get_value(IMX_GPIO_NR(2, 29)); + + if (key) { + /* Switch on both LEDs to inidcate boot mode */ + gpio_set_value(IMX_GPIO_NR(1, 29), 0); + gpio_set_value(IMX_GPIO_NR(4, 21), 0); + + setenv("preboot", "run gs_slow_boot"); + } else + setenv("preboot", "run gs_fast_boot"); + } + } + + return 0; +} + +int dram_init(void) +{ + /* dram_init must store complete ramsize in gd->ram_size */ + gd->ram_size = get_ram_size((void *)PHYS_SDRAM, + PHYS_SDRAM_SIZE); + return 0; +} |