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https://github.com/AsahiLinux/u-boot
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17cc2362af
If cpu_eth_init() fails we should return the error immediately. Cc: Marek Vasut <marex@denx.de> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de>
173 lines
3.8 KiB
C
173 lines
3.8 KiB
C
/*
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* DENX M28 module
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*
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* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
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* on behalf of DENX Software Engineering GmbH
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/gpio.h>
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#include <asm/io.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/iomux-mx28.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/sys_proto.h>
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#include <linux/mii.h>
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#include <miiphy.h>
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#include <netdev.h>
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#include <errno.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* Functions
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*/
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int board_early_init_f(void)
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{
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/* IO0 clock at 480MHz */
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mxs_set_ioclk(MXC_IOCLK0, 480000);
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/* IO1 clock at 480MHz */
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mxs_set_ioclk(MXC_IOCLK1, 480000);
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/* SSP0 clock at 96MHz */
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mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
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/* SSP2 clock at 160MHz */
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mxs_set_sspclk(MXC_SSPCLK2, 160000, 0);
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#ifdef CONFIG_CMD_USB
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mxs_iomux_setup_pad(MX28_PAD_SSP2_SS1__USB1_OVERCURRENT);
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mxs_iomux_setup_pad(MX28_PAD_AUART3_TX__GPIO_3_13 |
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MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP);
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gpio_direction_output(MX28_PAD_AUART3_TX__GPIO_3_13, 0);
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mxs_iomux_setup_pad(MX28_PAD_AUART3_RX__GPIO_3_12 |
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MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP);
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gpio_direction_output(MX28_PAD_AUART3_RX__GPIO_3_12, 0);
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#endif
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return 0;
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}
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int board_init(void)
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{
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/* Adress of boot parameters */
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gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
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return 0;
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}
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int dram_init(void)
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{
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return mxs_dram_init();
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}
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#ifdef CONFIG_CMD_MMC
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static int m28_mmc_wp(int id)
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{
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if (id != 0) {
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printf("MXS MMC: Invalid card selected (card id = %d)\n", id);
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return 1;
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}
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return gpio_get_value(MX28_PAD_AUART2_CTS__GPIO_3_10);
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}
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int board_mmc_init(bd_t *bis)
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{
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/* Configure WP as input. */
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gpio_direction_input(MX28_PAD_AUART2_CTS__GPIO_3_10);
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/* Turn on the power to the card. */
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gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0);
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return mxsmmc_initialize(bis, 0, m28_mmc_wp, NULL);
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}
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#endif
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#ifdef CONFIG_CMD_NET
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#define MII_OPMODE_STRAP_OVERRIDE 0x16
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#define MII_PHY_CTRL1 0x1e
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#define MII_PHY_CTRL2 0x1f
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int fecmxc_mii_postcall(int phy)
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{
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#if defined(CONFIG_DENX_M28_V11) || defined(CONFIG_DENX_M28_V10)
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/* KZ8031 PHY on old boards. */
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const uint32_t freq = 0x0080;
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#else
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/* KZ8021 PHY on new boards. */
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const uint32_t freq = 0x0000;
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#endif
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miiphy_write("FEC1", phy, MII_BMCR, 0x9000);
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miiphy_write("FEC1", phy, MII_OPMODE_STRAP_OVERRIDE, 0x0202);
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if (phy == 3)
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miiphy_write("FEC1", 3, MII_PHY_CTRL2, 0x8100 | freq);
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return 0;
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}
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int board_eth_init(bd_t *bis)
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{
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struct mxs_clkctrl_regs *clkctrl_regs =
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(struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
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struct eth_device *dev;
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int ret;
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ret = cpu_eth_init(bis);
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if (ret)
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return ret;
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clrsetbits_le32(&clkctrl_regs->hw_clkctrl_enet,
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CLKCTRL_ENET_TIME_SEL_MASK | CLKCTRL_ENET_CLK_OUT_EN,
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CLKCTRL_ENET_TIME_SEL_RMII_CLK);
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#if !defined(CONFIG_DENX_M28_V11) && !defined(CONFIG_DENX_M28_V10)
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/* Reset the new PHY */
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gpio_direction_output(MX28_PAD_AUART2_RTS__GPIO_3_11, 0);
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udelay(10000);
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gpio_set_value(MX28_PAD_AUART2_RTS__GPIO_3_11, 1);
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udelay(10000);
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#endif
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ret = fecmxc_initialize_multi(bis, 0, 0, MXS_ENET0_BASE);
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if (ret) {
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printf("FEC MXS: Unable to init FEC0\n");
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return ret;
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}
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ret = fecmxc_initialize_multi(bis, 1, 3, MXS_ENET1_BASE);
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if (ret) {
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printf("FEC MXS: Unable to init FEC1\n");
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return ret;
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}
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dev = eth_get_dev_by_name("FEC0");
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if (!dev) {
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printf("FEC MXS: Unable to get FEC0 device entry\n");
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return -EINVAL;
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}
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ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
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if (ret) {
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printf("FEC MXS: Unable to register FEC0 mii postcall\n");
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return ret;
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}
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dev = eth_get_dev_by_name("FEC1");
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if (!dev) {
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printf("FEC MXS: Unable to get FEC1 device entry\n");
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return -EINVAL;
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}
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ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
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if (ret) {
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printf("FEC MXS: Unable to register FEC1 mii postcall\n");
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return ret;
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}
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return ret;
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}
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#endif
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