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 <asm/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_MISC_INIT_R 55 int misc_init_r(void) 56 { 57 char envbuffer[16]; 58 u32 boot_choice; 59 u32 reg = readl(HB_SREG_A9_PWRDOM_STAT); 60 61 if (reg & PWRDOM_STAT_SATA) { 62 ahci_init(HB_AHCI_BASE); 63 scsi_scan(1); 64 } 65 66 boot_choice = readl(HB_SREG_A9_BOOT_SRC_STAT) & 0xff; 67 sprintf(envbuffer, "bootcmd%d", boot_choice); 68 if (getenv(envbuffer)) { 69 sprintf(envbuffer, "run bootcmd%d", boot_choice); 70 setenv("bootcmd", envbuffer); 71 } else 72 setenv("bootcmd", ""); 73 74 return 0; 75 } 76 #endif 77 78 int dram_init(void) 79 { 80 gd->ram_size = SZ_512M; 81 return 0; 82 } 83 84 void dram_init_banksize(void) 85 { 86 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 87 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; 88 } 89 90 #if defined(CONFIG_OF_BOARD_SETUP) 91 void ft_board_setup(void *fdt, bd_t *bd) 92 { 93 static const char disabled[] = "disabled"; 94 u32 reg = readl(HB_SREG_A9_PWRDOM_STAT); 95 96 if (!(reg & PWRDOM_STAT_SATA)) 97 do_fixup_by_compat(fdt, "calxeda,hb-ahci", "status", 98 disabled, sizeof(disabled), 1); 99 100 if (!(reg & PWRDOM_STAT_EMMC)) 101 do_fixup_by_compat(fdt, "calxeda,hb-sdhci", "status", 102 disabled, sizeof(disabled), 1); 103 } 104 #endif 105 106 void reset_cpu(ulong addr) 107 { 108 writel(HB_PWR_HARD_RESET, HB_SREG_A9_PWR_REQ); 109 110 wfi(); 111 } 112