diff options
Diffstat (limited to 'board/rockchip/kylin_rk3036/kylin_rk3036.c')
-rw-r--r-- | board/rockchip/kylin_rk3036/kylin_rk3036.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/board/rockchip/kylin_rk3036/kylin_rk3036.c b/board/rockchip/kylin_rk3036/kylin_rk3036.c new file mode 100644 index 0000000000..2a258710ac --- /dev/null +++ b/board/rockchip/kylin_rk3036/kylin_rk3036.c @@ -0,0 +1,81 @@ +/* + * (C) Copyright 2015 Rockchip Electronics Co., Ltd + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <asm/io.h> +#include <asm/arch/uart.h> +#include <asm/arch-rockchip/grf_rk3036.h> +#include <asm/arch/sdram_rk3036.h> +#include <asm/gpio.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define GRF_BASE 0x20008000 + +void get_ddr_config(struct rk3036_ddr_config *config) +{ + /* K4B4G1646Q config */ + config->ddr_type = 3; + config->rank = 1; + config->cs0_row = 15; + config->cs1_row = 15; + + /* 8bank */ + config->bank = 3; + config->col = 10; + + /* 16bit bw */ + config->bw = 1; +} + +#define FASTBOOT_KEY_GPIO 93 + +int fastboot_key_pressed(void) +{ + gpio_request(FASTBOOT_KEY_GPIO, "fastboot_key"); + gpio_direction_input(FASTBOOT_KEY_GPIO); + return !gpio_get_value(FASTBOOT_KEY_GPIO); +} + +#define ROCKCHIP_BOOT_MODE_FASTBOOT 0x5242C309 + +int board_late_init(void) +{ + struct rk3036_grf * const grf = (void *)GRF_BASE; + int boot_mode = readl(&grf->os_reg[4]); + + /* Clear boot mode */ + writel(0, &grf->os_reg[4]); + + if (boot_mode == ROCKCHIP_BOOT_MODE_FASTBOOT || + fastboot_key_pressed()) { + printf("enter fastboot!\n"); + setenv("preboot", "setenv preboot; fastboot usb0"); + } + + return 0; +} + +int board_init(void) +{ + return 0; +} + +int dram_init(void) +{ + gd->ram_size = sdram_size(); + + return 0; +} + +#ifndef CONFIG_SYS_DCACHE_OFF +void enable_caches(void) +{ + /* Enable D-cache. I-cache is already enabled in start.S */ + dcache_enable(); +} +#endif |