--- /dev/null
+/*
+ * (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;
+}
Code Review / kvmfornfv.git / blobdiff