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https://github.com/brain-hackers/u-boot-brain
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![Diego Dorta](/assets/img/avatar_default.png)
When building with W=1 errors like the one below is seen: board/freescale/mx6sabresd/mx6sabresd.c:546:5: warning: no previous prototype for ‘overwrite_console’ [-Wmissing-prototypes] int overwrite_console(void) Fix the build warnings by including <input.h>. Signed-off-by: Diego Dorta <diego.dorta@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
186 lines
4.9 KiB
C
186 lines
4.9 KiB
C
/*
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* Copyright (C) 2017 Logic PD, Inc.
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*
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* Author: Adam Ford <aford173@gmail.com>
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*
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* Based on SabreSD by Fabio Estevam <fabio.estevam@nxp.com>
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* and updates by Jagan Teki <jagan@amarulasolutions.com>
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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 <miiphy.h>
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#include <input.h>
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#include <mmc.h>
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#include <fsl_esdhc.h>
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#include <asm/io.h>
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#include <asm/gpio.h>
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#include <linux/sizes.h>
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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/iomux.h>
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#include <asm/arch/mxc_hdmi.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/mach-imx/boot_mode.h>
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#include <asm/mach-imx/iomux-v3.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define NAND_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
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int dram_init(void)
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{
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gd->ram_size = imx_ddr_size();
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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_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static iomux_v3_cfg_t const uart2_pads[] = {
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MX6_PAD_SD4_DAT4__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_SD4_DAT5__UART2_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_SD4_DAT6__UART2_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_SD4_DAT7__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static iomux_v3_cfg_t const uart3_pads[] = {
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MX6_PAD_EIM_D23__UART3_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_EIM_D24__UART3_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_EIM_D25__UART3_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_EIM_EB3__UART3_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static void fixup_enet_clock(void)
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{
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struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
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struct gpio_desc nint;
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struct gpio_desc reset;
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int ret;
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/* Set Ref Clock to 50 MHz */
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enable_fec_anatop_clock(0, ENET_50MHZ);
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/* Set GPIO_16 as ENET_REF_CLK_OUT */
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setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
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/* Request GPIO Pins to reset Ethernet with new clock */
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ret = dm_gpio_lookup_name("GPIO4_7", &nint);
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if (ret) {
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printf("Unable to lookup GPIO4_7\n");
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return;
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}
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ret = dm_gpio_request(&nint, "eth0_nInt");
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if (ret) {
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printf("Unable to request eth0_nInt\n");
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return;
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}
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/* Ensure nINT is input or PHY won't startup */
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dm_gpio_set_dir_flags(&nint, GPIOD_IS_IN);
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ret = dm_gpio_lookup_name("GPIO4_9", &reset);
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if (ret) {
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printf("Unable to lookup GPIO4_9\n");
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return;
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}
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ret = dm_gpio_request(&reset, "eth0_reset");
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if (ret) {
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printf("Unable to request eth0_reset\n");
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return;
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}
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/* Reset LAN8710A PHY */
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dm_gpio_set_dir_flags(&reset, GPIOD_IS_OUT);
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dm_gpio_set_value(&reset, 0);
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udelay(150);
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dm_gpio_set_value(&reset, 1);
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mdelay(50);
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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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imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
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imx_iomux_v3_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
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}
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static iomux_v3_cfg_t const nand_pads[] = {
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MX6_PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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};
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static void setup_nand_pins(void)
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{
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imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));
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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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/*
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* Do not overwrite the console
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* Use always serial for U-Boot console
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*/
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int overwrite_console(void)
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{
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return 1;
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}
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int board_early_init_f(void)
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{
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fixup_enet_clock();
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setup_iomux_uart();
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setup_nand_pins();
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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 board_late_init(void)
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{
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env_set("board_name", "imx6logic");
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if (is_mx6dq()) {
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env_set("board_rev", "MX6DQ");
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env_set("fdt_file", "imx6q-logicpd.dtb");
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}
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return 0;
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}
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