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author | Tom Rini <trini@konsulko.com> | 2019-11-12 15:18:23 +0300 |
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committer | Tom Rini <trini@konsulko.com> | 2019-11-12 15:18:23 +0300 |
commit | 5f7ff6d63eeb81ad2c071ff5f5adae5bcc94f7a4 (patch) | |
tree | eb3707f7e5b4ae1d0f3094cc8814ef8bc389aa8c /board/freescale/imx8mn_evk/spl.c | |
parent | a965a8b904093c9e6790d0460d18a144cefa5e42 (diff) | |
parent | bdcf3a88cc582ce8bb9ea024fa917d9a52e05479 (diff) | |
download | u-boot-5f7ff6d63eeb81ad2c071ff5f5adae5bcc94f7a4.tar.xz |
Merge tag 'u-boot-imx-20191105' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx
u-boot-imx-20191105
-------------------
i.MX8MN SoC support
ROM API image download support
i.MX8MM enet enabling
Diffstat (limited to 'board/freescale/imx8mn_evk/spl.c')
-rw-r--r-- | board/freescale/imx8mn_evk/spl.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/board/freescale/imx8mn_evk/spl.c b/board/freescale/imx8mn_evk/spl.c new file mode 100644 index 0000000000..cbde9f6b3c --- /dev/null +++ b/board/freescale/imx8mn_evk/spl.c @@ -0,0 +1,123 @@ +/* + * Copyright 2018-2019 NXP + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <spl.h> +#include <asm/io.h> +#include <asm/mach-imx/iomux-v3.h> +#include <asm/arch/clock.h> +#include <asm/arch/imx8mn_pins.h> +#include <asm/arch/sys_proto.h> +#include <asm/mach-imx/boot_mode.h> +#include <asm/arch/ddr.h> + +#include <dm/uclass.h> +#include <dm/device.h> +#include <dm/uclass-internal.h> +#include <dm/device-internal.h> + +DECLARE_GLOBAL_DATA_PTR; + +int spl_board_boot_device(enum boot_device boot_dev_spl) +{ + return BOOT_DEVICE_BOOTROM; +} + +void spl_dram_init(void) +{ + ddr_init(&dram_timing); +} + +void spl_board_init(void) +{ + struct udevice *dev; + int ret; + + puts("Normal Boot\n"); + + ret = uclass_get_device_by_name(UCLASS_CLK, + "clock-controller@30380000", + &dev); + if (ret < 0) + printf("Failed to find clock node. Check device tree\n"); +} + +#ifdef CONFIG_SPL_LOAD_FIT +int board_fit_config_name_match(const char *name) +{ + /* Just empty function now - can't decide what to choose */ + debug("%s: %s\n", __func__, name); + + return 0; +} +#endif + +#define UART_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_FSEL1) +#define WDOG_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE) + +static iomux_v3_cfg_t const uart_pads[] = { + IMX8MN_PAD_UART2_RXD__UART2_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), + IMX8MN_PAD_UART2_TXD__UART2_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), +}; + +static iomux_v3_cfg_t const wdog_pads[] = { + IMX8MN_PAD_GPIO1_IO02__WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL), +}; + +int board_early_init_f(void) +{ + struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR; + + imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads)); + + set_wdog_reset(wdog); + + imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads)); + + init_uart_clk(1); + + return 0; +} + +void board_init_f(ulong dummy) +{ + int ret; + + arch_cpu_init(); + + init_uart_clk(1); + + board_early_init_f(); + + timer_init(); + + preloader_console_init(); + + /* Clear the BSS. */ + memset(__bss_start, 0, __bss_end - __bss_start); + + ret = spl_init(); + if (ret) { + debug("spl_init() failed: %d\n", ret); + hang(); + } + + enable_tzc380(); + + /* DDR initialization */ + spl_dram_init(); + + board_init_r(NULL, 0); +} + +int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + puts("resetting ...\n"); + + reset_cpu(WDOG1_BASE_ADDR); + + return 0; +} |