diff options
Diffstat (limited to 'arch/arm/boards/freescale-mx6-arm2/board.c')
| -rw-r--r-- | arch/arm/boards/freescale-mx6-arm2/board.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/arch/arm/boards/freescale-mx6-arm2/board.c b/arch/arm/boards/freescale-mx6-arm2/board.c new file mode 100644 index 0000000000..14224727a2 --- /dev/null +++ b/arch/arm/boards/freescale-mx6-arm2/board.c @@ -0,0 +1,173 @@ +/* + * Copyright (C) 2012 Sascha Hauer, Pengutronix + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation. + * + */ + +#include <common.h> +#include <init.h> +#include <environment.h> +#include <mach/imx-regs.h> +#include <fec.h> +#include <mach/gpio.h> +#include <asm/armlinux.h> +#include <generated/mach-types.h> +#include <partition.h> +#include <miidev.h> +#include <asm/io.h> +#include <asm/mmu.h> +#include <mach/generic.h> +#include <sizes.h> +#include <mach/imx6.h> +#include <mach/devices-imx6.h> +#include <mach/iomux-mx6.h> + +static iomux_v3_cfg_t arm2_pads[] = { + /* UART1 */ + MX6Q_PAD_KEY_COL0__UART4_TXD, + MX6Q_PAD_KEY_ROW0__UART4_RXD, + + MX6Q_PAD_SD1_CLK__USDHC1_CLK, + MX6Q_PAD_SD1_CMD__USDHC1_CMD, + MX6Q_PAD_SD1_DAT0__USDHC1_DAT0, + MX6Q_PAD_SD1_DAT1__USDHC1_DAT1, + MX6Q_PAD_SD1_DAT2__USDHC1_DAT2, + MX6Q_PAD_SD1_DAT3__USDHC1_DAT3, + + MX6Q_PAD_SD2_CLK__USDHC2_CLK, + MX6Q_PAD_SD2_CMD__USDHC2_CMD, + MX6Q_PAD_SD2_DAT0__USDHC2_DAT0, + MX6Q_PAD_SD2_DAT1__USDHC2_DAT1, + MX6Q_PAD_SD2_DAT2__USDHC2_DAT2, + MX6Q_PAD_SD2_DAT3__USDHC2_DAT3, + + MX6Q_PAD_SD3_CLK__USDHC3_CLK, + MX6Q_PAD_SD3_CMD__USDHC3_CMD, + MX6Q_PAD_SD3_DAT0__USDHC3_DAT0, + MX6Q_PAD_SD3_DAT1__USDHC3_DAT1, + MX6Q_PAD_SD3_DAT2__USDHC3_DAT2, + MX6Q_PAD_SD3_DAT3__USDHC3_DAT3, + MX6Q_PAD_SD3_DAT4__USDHC3_DAT4, + MX6Q_PAD_SD3_DAT5__USDHC3_DAT5, + MX6Q_PAD_SD3_DAT6__USDHC3_DAT6, + MX6Q_PAD_SD3_DAT7__USDHC3_DAT7, + MX6Q_PAD_GPIO_18__USDHC3_VSELECT, + + MX6Q_PAD_SD4_CLK__USDHC4_CLK, + MX6Q_PAD_SD4_CMD__USDHC4_CMD, + MX6Q_PAD_SD4_DAT0__USDHC4_DAT0, + MX6Q_PAD_SD4_DAT1__USDHC4_DAT1, + MX6Q_PAD_SD4_DAT2__USDHC4_DAT2, + MX6Q_PAD_SD4_DAT3__USDHC4_DAT3, + MX6Q_PAD_SD4_DAT4__USDHC4_DAT4, + MX6Q_PAD_SD4_DAT5__USDHC4_DAT5, + MX6Q_PAD_SD4_DAT6__USDHC4_DAT6, + MX6Q_PAD_SD4_DAT7__USDHC4_DAT7, + + MX6Q_PAD_KEY_COL1__ENET_MDIO, + MX6Q_PAD_KEY_COL2__ENET_MDC, + MX6Q_PAD_RGMII_TXC__ENET_RGMII_TXC, + MX6Q_PAD_RGMII_TD0__ENET_RGMII_TD0, + MX6Q_PAD_RGMII_TD1__ENET_RGMII_TD1, + MX6Q_PAD_RGMII_TD2__ENET_RGMII_TD2, + MX6Q_PAD_RGMII_TD3__ENET_RGMII_TD3, + MX6Q_PAD_RGMII_TX_CTL__ENET_RGMII_TX_CTL, + MX6Q_PAD_ENET_REF_CLK__ENET_TX_CLK, + MX6Q_PAD_RGMII_RXC__ENET_RGMII_RXC, + MX6Q_PAD_RGMII_RD0__ENET_RGMII_RD0, + MX6Q_PAD_RGMII_RD1__ENET_RGMII_RD1, + MX6Q_PAD_RGMII_RD2__ENET_RGMII_RD2, + MX6Q_PAD_RGMII_RD3__ENET_RGMII_RD3, + MX6Q_PAD_RGMII_RX_CTL__ENET_RGMII_RX_CTL, + MX6Q_PAD_GPIO_0__CCM_CLKO, + MX6Q_PAD_GPIO_3__CCM_CLKO2, +}; + +static int arm2_mem_init(void) +{ + arm_add_mem_device("ram0", 0x10000000, SZ_2G); + + return 0; +} +mem_initcall(arm2_mem_init); + +static struct fec_platform_data fec_info = { + .xcv_type = RGMII, + .phy_addr = 0, +}; + +static int mx6_rgmii_rework(void) +{ + struct mii_device *mdev; + u16 val; + + mdev = mii_open("phy0"); + if (!mdev) { + printf("unable to open phy0\n"); + return -ENODEV; + } + + /* To enable AR8031 ouput a 125MHz clk from CLK_25M */ + mii_write(mdev, mdev->address, 0xd, 0x7); + mii_write(mdev, mdev->address, 0xe, 0x8016); + mii_write(mdev, mdev->address, 0xd, 0x4007); + + val = mii_read(mdev, mdev->address, 0xe); + val &= 0xffe3; + val |= 0x18; + mii_write(mdev, mdev->address, 0xe, val); + + /* introduce tx clock delay */ + mii_write(mdev, mdev->address, 0x1d, 0x5); + + val = mii_read(mdev, mdev->address, 0x1e); + val |= 0x0100; + mii_write(mdev, mdev->address, 0x1e, val); + + mii_close(mdev); + + return 0; +} + +static int arm2_devices_init(void) +{ + imx6_add_mmc3(NULL); + + imx6_add_fec(&fec_info); + mx6_rgmii_rework(); + + armlinux_set_bootparams((void *)0x10000100); + armlinux_set_architecture(3837); + + devfs_add_partition("disk0", 0, SZ_1M, PARTITION_FIXED, "self0"); + devfs_add_partition("disk0", SZ_1M + SZ_1M, SZ_512K, PARTITION_FIXED, "env0"); + + return 0; +} + +device_initcall(arm2_devices_init); + +static int arm2_console_init(void) +{ + mxc_iomux_v3_setup_multiple_pads(arm2_pads, ARRAY_SIZE(arm2_pads)); + + imx6_init_lowlevel(); + + imx6_add_uart3(); + + return 0; +} +console_initcall(arm2_console_init); |