]>
git.ipfire.org Git - people/ms/u-boot.git/blob - board/highbank/highbank.c
2 * Copyright 2010-2011 Calxeda, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
12 #include <linux/sizes.h>
15 #define HB_AHCI_BASE 0xffe08000
17 #define HB_SCU_A9_PWR_STATUS 0xfff10008
18 #define HB_SREG_A9_PWR_REQ 0xfff3cf00
19 #define HB_SREG_A9_BOOT_SRC_STAT 0xfff3cf04
20 #define HB_SREG_A9_PWRDOM_STAT 0xfff3cf20
21 #define HB_SREG_A15_PWR_CTRL 0xfff3c200
23 #define HB_PWR_SUSPEND 0
24 #define HB_PWR_SOFT_RESET 1
25 #define HB_PWR_HARD_RESET 2
26 #define HB_PWR_SHUTDOWN 3
28 #define PWRDOM_STAT_SATA 0x80000000
29 #define PWRDOM_STAT_PCI 0x40000000
30 #define PWRDOM_STAT_EMMC 0x20000000
32 #define HB_SCU_A9_PWR_NORMAL 0
33 #define HB_SCU_A9_PWR_DORMANT 2
34 #define HB_SCU_A9_PWR_OFF 3
36 DECLARE_GLOBAL_DATA_PTR
;
38 void cphy_disable_overrides(void);
41 * Miscellaneous platform dependent initialisations
50 /* We know all the init functions have been run now */
51 int board_eth_init(bd_t
*bis
)
55 #ifdef CONFIG_CALXEDA_XGMAC
56 rc
+= calxedaxgmac_initialize(0, 0xfff50000);
57 rc
+= calxedaxgmac_initialize(1, 0xfff51000);
62 #ifdef CONFIG_SCSI_AHCI_PLAT
65 u32 reg
= readl(HB_SREG_A9_PWRDOM_STAT
);
67 cphy_disable_overrides();
68 if (reg
& PWRDOM_STAT_SATA
) {
69 ahci_init((void __iomem
*)HB_AHCI_BASE
);
75 #ifdef CONFIG_MISC_INIT_R
81 boot_choice
= readl(HB_SREG_A9_BOOT_SRC_STAT
) & 0xff;
82 sprintf(envbuffer
, "bootcmd%d", boot_choice
);
83 if (getenv(envbuffer
)) {
84 sprintf(envbuffer
, "run bootcmd%d", boot_choice
);
85 setenv("bootcmd", envbuffer
);
87 setenv("bootcmd", "");
95 gd
->ram_size
= SZ_512M
;
99 #if defined(CONFIG_OF_BOARD_SETUP)
100 int ft_board_setup(void *fdt
, bd_t
*bd
)
102 static const char disabled
[] = "disabled";
103 u32 reg
= readl(HB_SREG_A9_PWRDOM_STAT
);
105 if (!(reg
& PWRDOM_STAT_SATA
))
106 do_fixup_by_compat(fdt
, "calxeda,hb-ahci", "status",
107 disabled
, sizeof(disabled
), 1);
109 if (!(reg
& PWRDOM_STAT_EMMC
))
110 do_fixup_by_compat(fdt
, "calxeda,hb-sdhci", "status",
111 disabled
, sizeof(disabled
), 1);
117 static int is_highbank(void)
121 asm volatile ("mrc p15, 0, %0, c0, c0, 0\n" : "=r"(midr
));
123 return (midr
& 0xfff0) == 0xc090;
126 void reset_cpu(ulong addr
)
128 writel(HB_PWR_HARD_RESET
, HB_SREG_A9_PWR_REQ
);
130 writeb(HB_SCU_A9_PWR_OFF
, HB_SCU_A9_PWR_STATUS
);
132 writel(0x1, HB_SREG_A15_PWR_CTRL
);
138 * turn off the override before transferring control to Linux, since Linux
139 * may not support spread spectrum.
141 void arch_preboot_os(void)
143 cphy_disable_overrides();