1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 2016 Google, Inc 4 */ 5 #include <common.h> 6 #include <dm.h> 7 #include <ram.h> 8 #include <timer.h> 9 #include <asm/io.h> 10 #include <asm/arch/timer.h> 11 #include <linux/err.h> 12 #include <dm/uclass.h> 13 14 DECLARE_GLOBAL_DATA_PTR; 15 16 __weak int board_init(void) 17 { 18 struct udevice *dev; 19 int i; 20 int ret; 21 22 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 23 24 /* 25 * Loop over all MISC uclass drivers to call the comphy code 26 * and init all CP110 devices enabled in the DT 27 */ 28 i = 0; 29 while (1) { 30 /* Call the comphy code via the MISC uclass driver */ 31 ret = uclass_get_device(UCLASS_MISC, i++, &dev); 32 33 /* We're done, once no further CP110 device is found */ 34 if (ret) 35 break; 36 } 37 38 return 0; 39 } 40 41 #ifndef CONFIG_RAM 42 #define SDMC_CONFIG_VRAM_GET(x) ((x >> 2) & 0x3) 43 #define SDMC_CONFIG_MEM_GET(x) (x & 0x3) 44 45 static const u32 ast2500_dram_table[] = { 46 0x08000000, //128MB 47 0x10000000, //256MB 48 0x20000000, //512MB 49 0x40000000, //1024MB 50 }; 51 52 u32 53 ast_sdmc_get_mem_size(void) 54 { 55 u32 size = 0; 56 u32 size_conf = SDMC_CONFIG_MEM_GET(readl(0x1e6e0004)); 57 58 size = ast2500_dram_table[size_conf]; 59 60 return size; 61 62 } 63 64 static const u32 aspeed_vram_table[] = { 65 0x00800000, //8MB 66 0x01000000, //16MB 67 0x02000000, //32MB 68 0x04000000, //64MB 69 }; 70 71 static u32 72 ast_sdmc_get_vram_size(void) 73 { 74 u32 size_conf = SDMC_CONFIG_VRAM_GET(SDMC_CONFIG_VRAM_GET(readl(0x1e6e0004))); 75 return aspeed_vram_table[size_conf]; 76 } 77 #endif 78 79 __weak int dram_init(void) 80 { 81 #ifdef CONFIG_RAM 82 struct udevice *dev; 83 struct ram_info ram; 84 int ret; 85 86 ret = uclass_get_device(UCLASS_RAM, 0, &dev); 87 if (ret) { 88 debug("DRAM FAIL1\r\n"); 89 return ret; 90 } 91 92 ret = ram_get_info(dev, &ram); 93 if (ret) { 94 debug("DRAM FAIL2\r\n"); 95 return ret; 96 } 97 98 gd->ram_size = ram.size; 99 #else 100 u32 vga = ast_sdmc_get_vram_size(); 101 u32 dram = ast_sdmc_get_mem_size(); 102 gd->ram_size = (dram - vga); 103 #endif 104 return 0; 105 } 106 107 int arch_early_init_r(void) 108 { 109 #ifdef CONFIG_DM_PCI 110 /* Trigger PCIe devices detection */ 111 pci_init(); 112 #endif 113 114 return 0; 115 } 116 117