diff options
Diffstat (limited to 'board/aries/m28evk/m28evk.c')
| -rw-r--r-- | board/aries/m28evk/m28evk.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/board/aries/m28evk/m28evk.c b/board/aries/m28evk/m28evk.c new file mode 100644 index 0000000000..c990ea9fec --- /dev/null +++ b/board/aries/m28evk/m28evk.c @@ -0,0 +1,173 @@ +/* + * Aries M28 module + * + * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com> + * on behalf of DENX Software Engineering GmbH + * + * 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-mx28.h> +#include <asm/arch/clock.h> +#include <asm/arch/sys_proto.h> +#include <linux/mii.h> +#include <miiphy.h> +#include <netdev.h> +#include <errno.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Functions + */ +int board_early_init_f(void) +{ + /* IO0 clock at 480MHz */ + mxs_set_ioclk(MXC_IOCLK0, 480000); + /* IO1 clock at 480MHz */ + mxs_set_ioclk(MXC_IOCLK1, 480000); + + /* SSP0 clock at 96MHz */ + mxs_set_sspclk(MXC_SSPCLK0, 96000, 0); + /* SSP2 clock at 160MHz */ + mxs_set_sspclk(MXC_SSPCLK2, 160000, 0); + +#ifdef CONFIG_CMD_USB + mxs_iomux_setup_pad(MX28_PAD_SSP2_SS1__USB1_OVERCURRENT); + mxs_iomux_setup_pad(MX28_PAD_AUART3_TX__GPIO_3_13 | + MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP); + gpio_direction_output(MX28_PAD_AUART3_TX__GPIO_3_13, 0); + + mxs_iomux_setup_pad(MX28_PAD_AUART3_RX__GPIO_3_12 | + MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP); + gpio_direction_output(MX28_PAD_AUART3_RX__GPIO_3_12, 0); +#endif + + return 0; +} + +int board_init(void) +{ + /* Adress of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; + + return 0; +} + +int dram_init(void) +{ + return mxs_dram_init(); +} + +#ifdef CONFIG_CMD_MMC +static int m28_mmc_wp(int id) +{ + if (id != 0) { + printf("MXS MMC: Invalid card selected (card id = %d)\n", id); + return 1; + } + + return gpio_get_value(MX28_PAD_AUART2_CTS__GPIO_3_10); +} + +int board_mmc_init(bd_t *bis) +{ + /* Configure WP as input. */ + gpio_direction_input(MX28_PAD_AUART2_CTS__GPIO_3_10); + /* Turn on the power to the card. */ + gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0); + + return mxsmmc_initialize(bis, 0, m28_mmc_wp, NULL); +} +#endif + +#ifdef CONFIG_CMD_NET + +#define MII_OPMODE_STRAP_OVERRIDE 0x16 +#define MII_PHY_CTRL1 0x1e +#define MII_PHY_CTRL2 0x1f + +int fecmxc_mii_postcall(int phy) +{ +#if defined(CONFIG_ARIES_M28_V11) || defined(CONFIG_ARIES_M28_V10) + /* KZ8031 PHY on old boards. */ + const uint32_t freq = 0x0080; +#else + /* KZ8021 PHY on new boards. */ + const uint32_t freq = 0x0000; +#endif + + miiphy_write("FEC1", phy, MII_BMCR, 0x9000); + miiphy_write("FEC1", phy, MII_OPMODE_STRAP_OVERRIDE, 0x0202); + if (phy == 3) + miiphy_write("FEC1", 3, MII_PHY_CTRL2, 0x8100 | freq); + return 0; +} + +int board_eth_init(bd_t *bis) +{ + struct mxs_clkctrl_regs *clkctrl_regs = + (struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE; + struct eth_device *dev; + int ret; + + ret = cpu_eth_init(bis); + if (ret) + return ret; + + clrsetbits_le32(&clkctrl_regs->hw_clkctrl_enet, + CLKCTRL_ENET_TIME_SEL_MASK | CLKCTRL_ENET_CLK_OUT_EN, + CLKCTRL_ENET_TIME_SEL_RMII_CLK); + +#if !defined(CONFIG_ARIES_M28_V11) && !defined(CONFIG_ARIES_M28_V10) + /* Reset the new PHY */ + gpio_direction_output(MX28_PAD_AUART2_RTS__GPIO_3_11, 0); + udelay(10000); + gpio_set_value(MX28_PAD_AUART2_RTS__GPIO_3_11, 1); + udelay(10000); +#endif + + ret = fecmxc_initialize_multi(bis, 0, 0, MXS_ENET0_BASE); + if (ret) { + printf("FEC MXS: Unable to init FEC0\n"); + return ret; + } + + ret = fecmxc_initialize_multi(bis, 1, 3, MXS_ENET1_BASE); + if (ret) { + printf("FEC MXS: Unable to init FEC1\n"); + return ret; + } + + dev = eth_get_dev_by_name("FEC0"); + if (!dev) { + printf("FEC MXS: Unable to get FEC0 device entry\n"); + return -EINVAL; + } + + ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall); + if (ret) { + printf("FEC MXS: Unable to register FEC0 mii postcall\n"); + return ret; + } + + dev = eth_get_dev_by_name("FEC1"); + if (!dev) { + printf("FEC MXS: Unable to get FEC1 device entry\n"); + return -EINVAL; + } + + ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall); + if (ret) { + printf("FEC MXS: Unable to register FEC1 mii postcall\n"); + return ret; + } + + return ret; +} + +#endif |