1 /* 2 * (C) Copyright 2015 Rockchip Electronics Co., Ltd 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <dm.h> 9 #include <asm/io.h> 10 #include <asm/arch/uart.h> 11 #include <asm/arch-rockchip/grf_rk3036.h> 12 #include <asm/arch/sdram_rk3036.h> 13 #include <asm/gpio.h> 14 15 DECLARE_GLOBAL_DATA_PTR; 16 17 #define GRF_BASE 0x20008000 18 19 void get_ddr_config(struct rk3036_ddr_config *config) 20 { 21 /* K4B4G1646Q config */ 22 config->ddr_type = 3; 23 config->rank = 1; 24 config->cs0_row = 15; 25 config->cs1_row = 15; 26 27 /* 8bank */ 28 config->bank = 3; 29 config->col = 10; 30 31 /* 16bit bw */ 32 config->bw = 1; 33 } 34 35 #define FASTBOOT_KEY_GPIO 93 36 37 int fastboot_key_pressed(void) 38 { 39 gpio_request(FASTBOOT_KEY_GPIO, "fastboot_key"); 40 gpio_direction_input(FASTBOOT_KEY_GPIO); 41 return !gpio_get_value(FASTBOOT_KEY_GPIO); 42 } 43 44 #define ROCKCHIP_BOOT_MODE_FASTBOOT 0x5242C309 45 46 int board_late_init(void) 47 { 48 struct rk3036_grf * const grf = (void *)GRF_BASE; 49 int boot_mode = readl(&grf->os_reg[4]); 50 51 /* Clear boot mode */ 52 writel(0, &grf->os_reg[4]); 53 54 if (boot_mode == ROCKCHIP_BOOT_MODE_FASTBOOT || 55 fastboot_key_pressed()) { 56 printf("enter fastboot!\n"); 57 setenv("preboot", "setenv preboot; fastboot usb0"); 58 } 59 60 return 0; 61 } 62 63 int board_init(void) 64 { 65 return 0; 66 } 67 68 int dram_init(void) 69 { 70 gd->ram_size = sdram_size(); 71 72 return 0; 73 } 74 75 #ifndef CONFIG_SYS_DCACHE_OFF 76 void enable_caches(void) 77 { 78 /* Enable D-cache. I-cache is already enabled in start.S */ 79 dcache_enable(); 80 } 81 #endif 82 83 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG) 84 #include <usb.h> 85 #include <usb/dwc2_udc.h> 86 87 static struct dwc2_plat_otg_data rk3036_otg_data = { 88 .rx_fifo_sz = 512, 89 .np_tx_fifo_sz = 16, 90 .tx_fifo_sz = 128, 91 }; 92 93 int board_usb_init(int index, enum usb_init_type init) 94 { 95 int node; 96 const char *mode; 97 bool matched = false; 98 const void *blob = gd->fdt_blob; 99 100 /* find the usb_otg node */ 101 node = fdt_node_offset_by_compatible(blob, -1, 102 "rockchip,rk3288-usb"); 103 104 while (node > 0) { 105 mode = fdt_getprop(blob, node, "dr_mode", NULL); 106 if (mode && strcmp(mode, "otg") == 0) { 107 matched = true; 108 break; 109 } 110 111 node = fdt_node_offset_by_compatible(blob, node, 112 "rockchip,rk3288-usb"); 113 } 114 if (!matched) { 115 debug("Not found usb_otg device\n"); 116 return -ENODEV; 117 } 118 rk3036_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg"); 119 120 return dwc2_udc_probe(&rk3036_otg_data); 121 } 122 123 int board_usb_cleanup(int index, enum usb_init_type init) 124 { 125 return 0; 126 } 127 #endif 128