diff options
Diffstat (limited to 'roms/u-boot/board/liebherr/xea/xea.c')
| -rw-r--r-- | roms/u-boot/board/liebherr/xea/xea.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/roms/u-boot/board/liebherr/xea/xea.c b/roms/u-boot/board/liebherr/xea/xea.c new file mode 100644 index 000000000..cd11b0ada --- /dev/null +++ b/roms/u-boot/board/liebherr/xea/xea.c @@ -0,0 +1,207 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * XEA iMX28 board + * + * Copyright (C) 2019 DENX Software Engineering + * Lukasz Majewski, DENX Software Engineering, lukma@denx.de + * + * Copyright (C) 2018 DENX Software Engineering + * Måns Rullgård, DENX Software Engineering, mans@mansr.com + * + * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com> + * on behalf of DENX Software Engineering GmbH + * + */ + +#include <common.h> +#include <fdt_support.h> +#include <init.h> +#include <log.h> +#include <net.h> +#include <asm/global_data.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/delay.h> +#include <linux/mii.h> +#include <miiphy.h> +#include <netdev.h> +#include <errno.h> +#include <usb.h> +#include <serial.h> + +#ifdef CONFIG_SPL_BUILD +#include <spl.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Functions + */ + +static void init_clocks(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); + /* SSP3 clock at 96MHz */ + mxs_set_sspclk(MXC_SSPCLK3, 96000, 0); +} + +#ifdef CONFIG_SPL_BUILD +void board_init_f(ulong arg) +{ + init_clocks(); + preloader_console_init(); +} + +static int boot_tiva0, boot_tiva1; + +/* Check if TIVAs request booting via U-Boot proper */ +void spl_board_init(void) +{ + struct gpio_desc btiva0, btiva1, en_3_3v; + int ret; + + /* + * Setup GPIO0_0 (TIVA power enable pin) to be output high + * to allow TIVA startup. + */ + ret = dm_gpio_lookup_name("GPIO0_0", &en_3_3v); + if (ret) + printf("Cannot get GPIO0_0\n"); + + ret = dm_gpio_request(&en_3_3v, "pwr_3_3v"); + if (ret) + printf("Cannot request GPIO0_0\n"); + + /* Set GPIO0_0 to HIGH */ + dm_gpio_set_dir_flags(&en_3_3v, GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE); + + ret = dm_gpio_lookup_name("GPIO0_23", &btiva0); + if (ret) + printf("Cannot get GPIO0_23\n"); + + ret = dm_gpio_lookup_name("GPIO0_25", &btiva1); + if (ret) + printf("Cannot get GPIO0_25\n"); + + ret = dm_gpio_request(&btiva0, "boot-tiva0"); + if (ret) + printf("Cannot request GPIO0_23\n"); + + ret = dm_gpio_request(&btiva1, "boot-tiva1"); + if (ret) + printf("Cannot request GPIO0_25\n"); + + dm_gpio_set_dir_flags(&btiva0, GPIOD_IS_IN); + dm_gpio_set_dir_flags(&btiva1, GPIOD_IS_IN); + + udelay(1000); + + boot_tiva0 = dm_gpio_get_value(&btiva0); + boot_tiva1 = dm_gpio_get_value(&btiva1); +} + +void board_boot_order(u32 *spl_boot_list) +{ + spl_boot_list[0] = BOOT_DEVICE_MMC1; + spl_boot_list[1] = BOOT_DEVICE_SPI; + spl_boot_list[2] = BOOT_DEVICE_UART; +} + +int spl_start_uboot(void) +{ + /* break into full u-boot on 'c' */ + if (serial_tstc() && serial_getc() == 'c') + return 1; + + debug("%s: btiva0: %d btiva1: %d\n", __func__, boot_tiva0, boot_tiva1); + return !boot_tiva0 || !boot_tiva1; +} +#else + +int board_early_init_f(void) +{ + init_clocks(); + + return 0; +} + +int board_init(void) +{ + struct gpio_desc phy_rst; + int ret; + + /* Address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; + + cpu_eth_init(NULL); + + /* PHY INT#/PWDN# */ + ret = dm_gpio_lookup_name("GPIO4_13", &phy_rst); + if (ret) { + printf("Cannot get GPIO4_13\n"); + return ret; + } + + ret = dm_gpio_request(&phy_rst, "phy-rst"); + if (ret) { + printf("Cannot request GPIO4_13\n"); + return ret; + } + + dm_gpio_set_dir_flags(&phy_rst, GPIOD_IS_IN); + udelay(1000); + + return 0; +} + +int dram_init(void) +{ + return mxs_dram_init(); +} + +#ifdef CONFIG_OF_BOARD_SETUP +static int fdt_fixup_l2switch(void *blob) +{ + u8 ethaddr[6]; + int ret; + + if (eth_env_get_enetaddr("ethaddr", ethaddr)) { + ret = fdt_find_and_setprop(blob, + "/ahb@80080000/switch@800f0000", + "local-mac-address", ethaddr, 6, 1); + if (ret < 0) + printf("%s: can't find usbether@1 node: %d\n", + __func__, ret); + } + + return 0; +} + +int ft_board_setup(void *blob, struct bd_info *bd) +{ + /* + * i.MX28 L2 switch needs manual update (fixup) of eth MAC address + * (in 'local-mac-address' property) as it uses "switch@800f0000" + * node, not set by default FIT image handling code in + * "ethernet@800f0000" + */ + fdt_fixup_l2switch(blob); + + return 0; +} +#endif + +#endif /* CONFIG_SPL_BUILD */ |