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https://github.com/brain-hackers/u-boot-brain
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![Fabio Estevam](/assets/img/avatar_default.png)
There is no need to print an error message when cpu_eth_init() fails because net/eth.c already prints it. In order to simplify the code, just return the value from cpu_eth_init(bis) directly. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
184 lines
5.0 KiB
C
184 lines
5.0 KiB
C
/*
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* Copyright (C) 2013 Freescale Semiconductor, Inc.
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* Copyright (C) 2013 SolidRun ltd.
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* Copyright (C) 2013 Jon Nettleton <jon.nettleton@gmail.com>.
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*
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* Authors: Fabio Estevam <fabio.estevam@freescale.com>
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Jon Nettleton <jon.nettleton@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <asm/arch/clock.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/iomux.h>
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#include <asm/arch/mx6-pins.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/errno.h>
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#include <asm/gpio.h>
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#include <asm/imx-common/iomux-v3.h>
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#include <asm/io.h>
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#include <mmc.h>
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#include <fsl_esdhc.h>
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#include <miiphy.h>
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#include <netdev.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
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PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
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PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
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PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define USDHC_PAD_CLK_CTRL (PAD_CTL_SPEED_LOW | \
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PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | \
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PAD_CTL_HYS)
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#define USDHC_PAD_GPIO_CTRL (PAD_CTL_PUS_22K_UP | \
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PAD_CTL_SPEED_LOW | PAD_CTL_DSE_40ohm | \
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PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
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#define ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
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#define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
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#define ETH_PHY_RESET IMX_GPIO_NR(4, 15)
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int dram_init(void)
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{
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gd->ram_size = ((phys_size_t)CONFIG_DDR_MB * 1024 * 1024);
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return 0;
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}
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static iomux_v3_cfg_t const uart1_pads[] = {
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MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static void setup_iomux_uart(void)
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{
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imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
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}
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static iomux_v3_cfg_t const usdhc2_pads[] = {
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MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CLK_CTRL),
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MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_GPIO_4__SD2_CD_B | MUX_PAD_CTRL(USDHC_PAD_GPIO_CTRL),
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};
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#ifdef CONFIG_FSL_ESDHC
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static struct fsl_esdhc_cfg usdhc_cfg[1] = {
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{ USDHC2_BASE_ADDR },
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};
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int board_mmc_getcd(struct mmc *mmc)
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{
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return 1; /* SD card is the boot medium, so always present */
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}
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int board_mmc_init(bd_t *bis)
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{
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imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
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return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
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}
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#endif
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#ifdef CONFIG_FEC_MXC
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static iomux_v3_cfg_t const enet_pads[] = {
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MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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/* AR8035 reset */
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MX6_PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
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/* AR8035 interrupt */
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MX6_PAD_DI0_PIN2__GPIO4_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* GPIO16 -> AR8035 25MHz */
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MX6_PAD_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(NO_PAD_CTRL),
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MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(NO_PAD_CTRL),
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MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
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/* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
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MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
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MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
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MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
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MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
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};
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static void setup_iomux_enet(void)
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{
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imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
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gpio_direction_output(ETH_PHY_RESET, 0);
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mdelay(2);
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gpio_set_value(ETH_PHY_RESET, 1);
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}
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int board_phy_config(struct phy_device *phydev)
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{
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if (phydev->drv->config)
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phydev->drv->config(phydev);
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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 iomuxc_base_regs *const iomuxc_regs =
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(struct iomuxc_base_regs *)IOMUXC_BASE_ADDR;
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int ret = enable_fec_anatop_clock(ENET_25MHz);
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if (ret)
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return ret;
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/* set gpr1[ENET_CLK_SEL] */
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setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
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setup_iomux_enet();
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return cpu_eth_init(bis);
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}
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#endif
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int board_early_init_f(void)
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{
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setup_iomux_uart();
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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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/* address of boot parameters */
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gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
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return 0;
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}
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int checkboard(void)
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{
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puts("Board: Hummingboard\n");
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return 0;
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}
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