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authorFabio Estevam <fabio.estevam@freescale.com>2013-03-15 10:43:48 +0000
committerStefano Babic <sbabic@denx.de>2013-03-20 11:47:37 +0100
commite2d282a1b468559c5f7e847db75eeca99644148a (patch)
tree3229a6d2433a451ef2660f1ea8b289e1f9ce829c /board/wandboard
parent209b5710649cb855abe362268348df91bede6565 (diff)
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Add initial support for Wandboard dual lite and solo.
Wandboard is a development board that has two variants: one version based on mx6 dual lite and another one based on mx6 solo. For more details about Wandboard, please refer to: http://www.wandboard.org/ Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Diffstat (limited to 'board/wandboard')
-rw-r--r--board/wandboard/Makefile29
-rw-r--r--board/wandboard/README40
-rw-r--r--board/wandboard/wandboard.c181
3 files changed, 250 insertions, 0 deletions
diff --git a/board/wandboard/Makefile b/board/wandboard/Makefile
new file mode 100644
index 0000000..014ea6c
--- /dev/null
+++ b/board/wandboard/Makefile
@@ -0,0 +1,29 @@
+#
+# (C) Copyright 2013 Freescale Semiconductor, Inc.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).o
+
+COBJS := wandboard.o
+
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/wandboard/README b/board/wandboard/README
new file mode 100644
index 0000000..e0b0b33
--- /dev/null
+++ b/board/wandboard/README
@@ -0,0 +1,40 @@
+U-Boot for Wandboard
+--------------------
+
+This file contains information for the port of U-Boot to the Wandboard.
+
+Wandboard is a development board that has two variants: one version based
+on mx6 dual lite and another one based on mx6 solo.
+
+For more details about Wandboard, please refer to:
+http://www.wandboard.org/
+
+Building U-boot for Wandboard
+-----------------------------
+
+To build U-Boot for the Wandboard Dual Lite version:
+
+$ make wanboard_dl_config
+$ make
+
+To build U-Boot for the Wandboard Solo version:
+
+$ make wanboard_solo_config
+$ make
+
+Flashing U-boot into the SD card
+--------------------------------
+
+- After the 'make' command completes, the generated 'u-boot.imx' binary must be
+flashed into the SD card;
+
+$ sudo dd if=u-boot.imx of=/dev/mmcblk0 bs=512 seek=2; sync
+
+(Note - the SD card node may vary, so adjust this as needed).
+
+- Insert the SD card into the slot located in the bottom of the board (same side
+as the mx6 processor)
+
+- Connect the serial cable to the host PC
+
+- Power up the board and U-boot messages will appear in the serial console.
diff --git a/board/wandboard/wandboard.c b/board/wandboard/wandboard.c
new file mode 100644
index 0000000..d95189f
--- /dev/null
+++ b/board/wandboard/wandboard.c
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#include <asm/arch/clock.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/imx-common/iomux-v3.h>
+#include <asm/io.h>
+#include <asm/sizes.h>
+#include <common.h>
+#include <fsl_esdhc.h>
+#include <mmc.h>
+#include <miiphy.h>
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
+
+#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ 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_PKE | PAD_CTL_PUE | \
+ PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+#define ETH_PHY_RESET IMX_GPIO_NR(3, 29)
+
+int dram_init(void)
+{
+ gd->ram_size = CONFIG_DDR_MB * SZ_1M;
+
+ return 0;
+}
+
+static iomux_v3_cfg_t const uart1_pads[] = {
+ MX6_PAD_CSI0_DAT10__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+ MX6_PAD_CSI0_DAT11__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const usdhc3_pads[] = {
+ MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const enet_pads[] = {
+ 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_RGMII_TXC__ENET_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD0__ENET_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD1__ENET_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD2__ENET_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD3__ENET_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RXC__ENET_RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD0__ENET_RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD1__ENET_RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD2__ENET_RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD3__ENET_RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ /* AR8031 PHY Reset */
+ MX6_PAD_EIM_D29__GPIO_3_29 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+ imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+}
+
+static void setup_iomux_enet(void)
+{
+ imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
+
+ /* Reset AR8031 PHY */
+ gpio_direction_output(ETH_PHY_RESET, 0);
+ udelay(500);
+ gpio_set_value(ETH_PHY_RESET, 1);
+}
+
+static struct fsl_esdhc_cfg usdhc_cfg[1] = {
+ {USDHC3_BASE_ADDR},
+};
+
+int board_mmc_init(bd_t *bis)
+{
+ imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+
+ usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+ return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
+}
+
+static int mx6_rgmii_rework(struct phy_device *phydev)
+{
+ unsigned short val;
+
+ /* To enable AR8031 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 &= 0xffe3;
+ 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);
+
+ return 0;
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+ mx6_rgmii_rework(phydev);
+
+ if (phydev->drv->config)
+ phydev->drv->config(phydev);
+
+ return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ int ret;
+
+ setup_iomux_enet();
+
+ ret = cpu_eth_init(bis);
+ if (ret)
+ printf("FEC MXC: %s:failed\n", __func__);
+
+ return 0;
+}
+
+int board_early_init_f(void)
+{
+ setup_iomux_uart();
+ return 0;
+}
+
+int board_init(void)
+{
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+ return 0;
+}
+
+u32 get_board_rev(void)
+{
+ return get_cpu_rev();
+}
+
+int checkboard(void)
+{
+ puts("Board: Wandboard\n");
+
+ return 0;
+}