mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 10:48:51 +00:00
b75d8dc564
The Linux coding style guide (Documentation/process/coding-style.rst) clearly says: It's a **mistake** to use typedef for structures and pointers. Besides, using typedef for structures is annoying when you try to make headers self-contained. Let's say you have the following function declaration in a header: void foo(bd_t *bd); This is not self-contained since bd_t is not defined. To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h> #include <asm/u-boot.h> void foo(bd_t *bd); Then, the include direcective pulls in more bloat needlessly. If you use 'struct bd_info' instead, it is enough to put a forward declaration as follows: struct bd_info; void foo(struct bd_info *bd); Right, typedef'ing bd_t is a mistake. I used coccinelle to generate this commit. The semantic patch that makes this change is as follows: <smpl> @@ typedef bd_t; @@ -bd_t +struct bd_info </smpl> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
148 lines
2.8 KiB
C
148 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2010-2011 Calxeda, Inc.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <ahci.h>
|
|
#include <cpu_func.h>
|
|
#include <env.h>
|
|
#include <fdt_support.h>
|
|
#include <init.h>
|
|
#include <net.h>
|
|
#include <netdev.h>
|
|
#include <scsi.h>
|
|
|
|
#include <linux/sizes.h>
|
|
#include <asm/io.h>
|
|
|
|
#define HB_AHCI_BASE 0xffe08000
|
|
|
|
#define HB_SCU_A9_PWR_STATUS 0xfff10008
|
|
#define HB_SREG_A9_PWR_REQ 0xfff3cf00
|
|
#define HB_SREG_A9_BOOT_SRC_STAT 0xfff3cf04
|
|
#define HB_SREG_A9_PWRDOM_STAT 0xfff3cf20
|
|
#define HB_SREG_A15_PWR_CTRL 0xfff3c200
|
|
|
|
#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
|
|
|
|
#define HB_SCU_A9_PWR_NORMAL 0
|
|
#define HB_SCU_A9_PWR_DORMANT 2
|
|
#define HB_SCU_A9_PWR_OFF 3
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
void cphy_disable_overrides(void);
|
|
|
|
/*
|
|
* 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(struct bd_info *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);
|
|
|
|
cphy_disable_overrides();
|
|
if (reg & PWRDOM_STAT_SATA) {
|
|
ahci_init((void __iomem *)HB_AHCI_BASE);
|
|
scsi_scan(true);
|
|
}
|
|
}
|
|
#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 (env_get(envbuffer)) {
|
|
sprintf(envbuffer, "run bootcmd%d", boot_choice);
|
|
env_set("bootcmd", envbuffer);
|
|
} else
|
|
env_set("bootcmd", "");
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int dram_init(void)
|
|
{
|
|
gd->ram_size = SZ_512M;
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_OF_BOARD_SETUP)
|
|
int ft_board_setup(void *fdt, struct bd_info *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
|
|
|
|
static int is_highbank(void)
|
|
{
|
|
uint32_t midr;
|
|
|
|
asm volatile ("mrc p15, 0, %0, c0, c0, 0\n" : "=r"(midr));
|
|
|
|
return (midr & 0xfff0) == 0xc090;
|
|
}
|
|
|
|
void reset_cpu(ulong addr)
|
|
{
|
|
writel(HB_PWR_HARD_RESET, HB_SREG_A9_PWR_REQ);
|
|
if (is_highbank())
|
|
writeb(HB_SCU_A9_PWR_OFF, HB_SCU_A9_PWR_STATUS);
|
|
else
|
|
writel(0x1, HB_SREG_A15_PWR_CTRL);
|
|
|
|
wfi();
|
|
}
|
|
|
|
/*
|
|
* turn off the override before transferring control to Linux, since Linux
|
|
* may not support spread spectrum.
|
|
*/
|
|
void arch_preboot_os(void)
|
|
{
|
|
cphy_disable_overrides();
|
|
}
|