4 * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
5 * on behalf of DENX Software Engineering GmbH
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <asm/arch/imx-regs.h>
30 #include <asm/arch/iomux-mx28.h>
31 #include <asm/arch/clock.h>
32 #include <asm/arch/sys_proto.h>
33 #include <linux/mii.h>
38 DECLARE_GLOBAL_DATA_PTR;
43 int board_early_init_f(void)
45 /* IO0 clock at 480MHz */
46 mxs_set_ioclk(MXC_IOCLK0, 480000);
47 /* IO1 clock at 480MHz */
48 mxs_set_ioclk(MXC_IOCLK1, 480000);
50 /* SSP0 clock at 96MHz */
51 mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
52 /* SSP2 clock at 160MHz */
53 mxs_set_sspclk(MXC_SSPCLK2, 160000, 0);
56 mxs_iomux_setup_pad(MX28_PAD_SSP2_SS1__USB1_OVERCURRENT);
57 mxs_iomux_setup_pad(MX28_PAD_AUART3_TX__GPIO_3_13 |
58 MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP);
59 gpio_direction_output(MX28_PAD_AUART3_TX__GPIO_3_13, 0);
61 mxs_iomux_setup_pad(MX28_PAD_AUART3_RX__GPIO_3_12 |
62 MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP);
63 gpio_direction_output(MX28_PAD_AUART3_RX__GPIO_3_12, 0);
71 /* Adress of boot parameters */
72 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
79 return mxs_dram_init();
83 static int m28_mmc_wp(int id)
86 printf("MXS MMC: Invalid card selected (card id = %d)\n", id);
90 return gpio_get_value(MX28_PAD_AUART2_CTS__GPIO_3_10);
93 int board_mmc_init(bd_t *bis)
95 /* Configure WP as input. */
96 gpio_direction_input(MX28_PAD_AUART2_CTS__GPIO_3_10);
97 /* Turn on the power to the card. */
98 gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0);
100 return mxsmmc_initialize(bis, 0, m28_mmc_wp, NULL);
104 #ifdef CONFIG_CMD_NET
106 #define MII_OPMODE_STRAP_OVERRIDE 0x16
107 #define MII_PHY_CTRL1 0x1e
108 #define MII_PHY_CTRL2 0x1f
110 int fecmxc_mii_postcall(int phy)
112 #if defined(CONFIG_DENX_M28_V11) || defined(CONFIG_DENX_M28_V10)
113 /* KZ8031 PHY on old boards. */
114 const uint32_t freq = 0x0080;
116 /* KZ8021 PHY on new boards. */
117 const uint32_t freq = 0x0000;
120 miiphy_write("FEC1", phy, MII_BMCR, 0x9000);
121 miiphy_write("FEC1", phy, MII_OPMODE_STRAP_OVERRIDE, 0x0202);
123 miiphy_write("FEC1", 3, MII_PHY_CTRL2, 0x8100 | freq);
127 int board_eth_init(bd_t *bis)
129 struct mxs_clkctrl_regs *clkctrl_regs =
130 (struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
131 struct eth_device *dev;
134 ret = cpu_eth_init(bis);
136 clrsetbits_le32(&clkctrl_regs->hw_clkctrl_enet,
137 CLKCTRL_ENET_TIME_SEL_MASK | CLKCTRL_ENET_CLK_OUT_EN,
138 CLKCTRL_ENET_TIME_SEL_RMII_CLK);
140 #if !defined(CONFIG_DENX_M28_V11) && !defined(CONFIG_DENX_M28_V10)
141 /* Reset the new PHY */
142 gpio_direction_output(MX28_PAD_AUART2_RTS__GPIO_3_11, 0);
144 gpio_set_value(MX28_PAD_AUART2_RTS__GPIO_3_11, 1);
148 ret = fecmxc_initialize_multi(bis, 0, 0, MXS_ENET0_BASE);
150 printf("FEC MXS: Unable to init FEC0\n");
154 ret = fecmxc_initialize_multi(bis, 1, 3, MXS_ENET1_BASE);
156 printf("FEC MXS: Unable to init FEC1\n");
160 dev = eth_get_dev_by_name("FEC0");
162 printf("FEC MXS: Unable to get FEC0 device entry\n");
166 ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
168 printf("FEC MXS: Unable to register FEC0 mii postcall\n");
172 dev = eth_get_dev_by_name("FEC1");
174 printf("FEC MXS: Unable to get FEC1 device entry\n");
178 ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
180 printf("FEC MXS: Unable to register FEC1 mii postcall\n");