u-boot/board/highbank/highbank.c
Simon Glass e895a4b06f fdt: Allow ft_board_setup() to report failure
This function can fail if the device tree runs out of space. Rather than
silently booting with an incomplete device tree, allow the failure to be
detected.

Unfortunately this involves changing a lot of places in the code. I have
not changed behvaiour to return an error where one is not currently
returned, to avoid unexpected breakage.

Eventually it would be nice to allow boards to register functions to be
called to update the device tree. This would avoid all the many functions
to do this. However it's not clear yet if this should be done using driver
model or with a linker list. This work is left for later.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
2014-11-21 04:43:15 +01:00

119 lines
2.2 KiB
C

/*
* Copyright 2010-2011 Calxeda, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <ahci.h>
#include <netdev.h>
#include <scsi.h>
#include <linux/sizes.h>
#include <asm/io.h>
#define HB_AHCI_BASE 0xffe08000
#define HB_SREG_A9_PWR_REQ 0xfff3cf00
#define HB_SREG_A9_BOOT_SRC_STAT 0xfff3cf04
#define HB_SREG_A9_PWRDOM_STAT 0xfff3cf20
#define HB_PWR_SUSPEND 0
#define HB_PWR_SOFT_RESET 1
#define HB_PWR_HARD_RESET 2
#define HB_PWR_SHUTDOWN 3
#define PWRDOM_STAT_SATA 0x80000000
#define PWRDOM_STAT_PCI 0x40000000
#define PWRDOM_STAT_EMMC 0x20000000
DECLARE_GLOBAL_DATA_PTR;
/*
* Miscellaneous platform dependent initialisations
*/
int board_init(void)
{
icache_enable();
return 0;
}
/* We know all the init functions have been run now */
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_CALXEDA_XGMAC
rc += calxedaxgmac_initialize(0, 0xfff50000);
rc += calxedaxgmac_initialize(1, 0xfff51000);
#endif
return rc;
}
#ifdef CONFIG_SCSI_AHCI_PLAT
void scsi_init(void)
{
u32 reg = readl(HB_SREG_A9_PWRDOM_STAT);
if (reg & PWRDOM_STAT_SATA) {
ahci_init(HB_AHCI_BASE);
scsi_scan(1);
}
}
#endif
#ifdef CONFIG_MISC_INIT_R
int misc_init_r(void)
{
char envbuffer[16];
u32 boot_choice;
boot_choice = readl(HB_SREG_A9_BOOT_SRC_STAT) & 0xff;
sprintf(envbuffer, "bootcmd%d", boot_choice);
if (getenv(envbuffer)) {
sprintf(envbuffer, "run bootcmd%d", boot_choice);
setenv("bootcmd", envbuffer);
} else
setenv("bootcmd", "");
return 0;
}
#endif
int dram_init(void)
{
gd->ram_size = SZ_512M;
return 0;
}
void dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
}
#if defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *fdt, bd_t *bd)
{
static const char disabled[] = "disabled";
u32 reg = readl(HB_SREG_A9_PWRDOM_STAT);
if (!(reg & PWRDOM_STAT_SATA))
do_fixup_by_compat(fdt, "calxeda,hb-ahci", "status",
disabled, sizeof(disabled), 1);
if (!(reg & PWRDOM_STAT_EMMC))
do_fixup_by_compat(fdt, "calxeda,hb-sdhci", "status",
disabled, sizeof(disabled), 1);
return 0;
}
#endif
void reset_cpu(ulong addr)
{
writel(HB_PWR_HARD_RESET, HB_SREG_A9_PWR_REQ);
wfi();
}