1 /* 2 * Copyright 2010-2011 Calxeda, Inc. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <ahci.h> 9 #include <netdev.h> 10 #include <scsi.h> 11 12 #include <linux/sizes.h> 13 #include <asm/io.h> 14 15 #define HB_AHCI_BASE 0xffe08000 16 17 #define HB_SREG_A9_PWR_REQ 0xfff3cf00 18 #define HB_SREG_A9_BOOT_SRC_STAT 0xfff3cf04 19 #define HB_SREG_A9_PWRDOM_STAT 0xfff3cf20 20 21 #define HB_PWR_SUSPEND 0 22 #define HB_PWR_SOFT_RESET 1 23 #define HB_PWR_HARD_RESET 2 24 #define HB_PWR_SHUTDOWN 3 25 26 #define PWRDOM_STAT_SATA 0x80000000 27 #define PWRDOM_STAT_PCI 0x40000000 28 #define PWRDOM_STAT_EMMC 0x20000000 29 30 DECLARE_GLOBAL_DATA_PTR; 31 32 /* 33 * Miscellaneous platform dependent initialisations 34 */ 35 int board_init(void) 36 { 37 icache_enable(); 38 39 return 0; 40 } 41 42 /* We know all the init functions have been run now */ 43 int board_eth_init(bd_t *bis) 44 { 45 int rc = 0; 46 47 #ifdef CONFIG_CALXEDA_XGMAC 48 rc += calxedaxgmac_initialize(0, 0xfff50000); 49 rc += calxedaxgmac_initialize(1, 0xfff51000); 50 #endif 51 return rc; 52 } 53 54 #ifdef CONFIG_SCSI_AHCI_PLAT 55 void scsi_init(void) 56 { 57 u32 reg = readl(HB_SREG_A9_PWRDOM_STAT); 58 59 if (reg & PWRDOM_STAT_SATA) { 60 ahci_init((void __iomem *)HB_AHCI_BASE); 61 scsi_scan(1); 62 } 63 } 64 #endif 65 66 #ifdef CONFIG_MISC_INIT_R 67 int misc_init_r(void) 68 { 69 char envbuffer[16]; 70 u32 boot_choice; 71 72 boot_choice = readl(HB_SREG_A9_BOOT_SRC_STAT) & 0xff; 73 sprintf(envbuffer, "bootcmd%d", boot_choice); 74 if (getenv(envbuffer)) { 75 sprintf(envbuffer, "run bootcmd%d", boot_choice); 76 setenv("bootcmd", envbuffer); 77 } else 78 setenv("bootcmd", ""); 79 80 return 0; 81 } 82 #endif 83 84 int dram_init(void) 85 { 86 gd->ram_size = SZ_512M; 87 return 0; 88 } 89 90 void dram_init_banksize(void) 91 { 92 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 93 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; 94 } 95 96 #if defined(CONFIG_OF_BOARD_SETUP) 97 int ft_board_setup(void *fdt, bd_t *bd) 98 { 99 static const char disabled[] = "disabled"; 100 u32 reg = readl(HB_SREG_A9_PWRDOM_STAT); 101 102 if (!(reg & PWRDOM_STAT_SATA)) 103 do_fixup_by_compat(fdt, "calxeda,hb-ahci", "status", 104 disabled, sizeof(disabled), 1); 105 106 if (!(reg & PWRDOM_STAT_EMMC)) 107 do_fixup_by_compat(fdt, "calxeda,hb-sdhci", "status", 108 disabled, sizeof(disabled), 1); 109 110 return 0; 111 } 112 #endif 113 114 void reset_cpu(ulong addr) 115 { 116 writel(HB_PWR_HARD_RESET, HB_SREG_A9_PWR_REQ); 117 118 wfi(); 119 } 120