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arm: mvebu: Move get_boot_device() to cpu.c and make visible

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Move the function get_boot_device() from spl.c to cpu.c.

Make it visible, so that it may be used from other files.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Marek Behún 2021-08-16 15:19:37 +02:00 • committed by Stefan Roese
parent 167689897b
commit dc595e3e45
3 changed files with 71 additions and 68 deletions
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60
arch/arm/mach-mvebu/cpu.c
View file

@ -14,6 +14,7 @@
#include <asm/pl310.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
#include <asm/spl.h>
#include <sdhci.h>
#define DDR_BASE_CS_OFF(n) (0x0000 + ((n) << 3))
@ -80,6 +81,65 @@ int mvebu_soc_family(void)
return MVEBU_SOC_UNKNOWN;
}
u32 get_boot_device(void)
{
u32 val;
u32 boot_device;
/*
* First check, if UART boot-mode is active. This can only
* be done, via the bootrom error register. Here the
* MSB marks if the UART mode is active.
*/
val = readl(CONFIG_BOOTROM_ERR_REG);
boot_device = (val & BOOTROM_ERR_MODE_MASK) >> BOOTROM_ERR_MODE_OFFS;
debug("BOOTROM_REG=0x%08x boot_device=0x%x\n", val, boot_device);
if (boot_device == BOOTROM_ERR_MODE_UART)
return BOOT_DEVICE_UART;
#ifdef CONFIG_ARMADA_38X
/*
* If the bootrom error code contains any other than zeros it's an
* error condition and the bootROM has fallen back to UART boot
*/
boot_device = (val & BOOTROM_ERR_CODE_MASK) >> BOOTROM_ERR_CODE_OFFS;
if (boot_device)
return BOOT_DEVICE_UART;
#endif
/*
* Now check the SAR register for the strapped boot-device
*/
val = readl(CONFIG_SAR_REG); /* SAR - Sample At Reset */
boot_device = (val & BOOT_DEV_SEL_MASK) >> BOOT_DEV_SEL_OFFS;
debug("SAR_REG=0x%08x boot_device=0x%x\n", val, boot_device);
switch (boot_device) {
#ifdef BOOT_FROM_NAND
case BOOT_FROM_NAND:
return BOOT_DEVICE_NAND;
#endif
#ifdef BOOT_FROM_MMC
case BOOT_FROM_MMC:
case BOOT_FROM_MMC_ALT:
return BOOT_DEVICE_MMC1;
#endif
case BOOT_FROM_UART:
#ifdef BOOT_FROM_UART_ALT
case BOOT_FROM_UART_ALT:
#endif
return BOOT_DEVICE_UART;
#ifdef BOOT_FROM_SATA
case BOOT_FROM_SATA:
case BOOT_FROM_SATA_ALT:
return BOOT_DEVICE_SATA;
#endif
case BOOT_FROM_SPI:
return BOOT_DEVICE_SPI;
default:
return BOOT_DEVICE_BOOTROM;
};
}
#if defined(CONFIG_DISPLAY_CPUINFO)
#if defined(CONFIG_ARMADA_375)

2
arch/arm/mach-mvebu/include/mach/cpu.h
View file

@ -148,6 +148,8 @@ void __noreturn return_to_bootrom(void);
int mv_sdh_init(unsigned long regbase, u32 max_clk, u32 min_clk, u32 quirks);
#endif
u32 get_boot_device(void);
void get_sar_freq(struct sar_freq_modes *sar_freq);
/*

77
arch/arm/mach-mvebu/spl.c
View file

@ -171,74 +171,6 @@ int spl_parse_board_header(struct spl_image_info *spl_image,
return 0;
}
static u32 get_boot_device(void)
{
u32 val;
u32 boot_device;
/*
* First check, if UART boot-mode is active. This can only
* be done, via the bootrom error register. Here the
* MSB marks if the UART mode is active.
*/
val = readl(CONFIG_BOOTROM_ERR_REG);
boot_device = (val & BOOTROM_ERR_MODE_MASK) >> BOOTROM_ERR_MODE_OFFS;
debug("BOOTROM_REG=0x%08x boot_device=0x%x\n", val, boot_device);
if (boot_device == BOOTROM_ERR_MODE_UART)
return BOOT_DEVICE_UART;
#ifdef CONFIG_ARMADA_38X
/*
* If the bootrom error code contains any other than zeros it's an
* error condition and the bootROM has fallen back to UART boot
*/
boot_device = (val & BOOTROM_ERR_CODE_MASK) >> BOOTROM_ERR_CODE_OFFS;
if (boot_device)
return BOOT_DEVICE_UART;
#endif
/*
* Now check the SAR register for the strapped boot-device
*/
val = readl(CONFIG_SAR_REG); /* SAR - Sample At Reset */
boot_device = (val & BOOT_DEV_SEL_MASK) >> BOOT_DEV_SEL_OFFS;
debug("SAR_REG=0x%08x boot_device=0x%x\n", val, boot_device);
switch (boot_device) {
#ifdef BOOT_FROM_NAND
case BOOT_FROM_NAND:
return BOOT_DEVICE_NAND;
#endif
#ifdef BOOT_FROM_MMC
case BOOT_FROM_MMC:
case BOOT_FROM_MMC_ALT:
return BOOT_DEVICE_MMC1;
#endif
case BOOT_FROM_UART:
#ifdef BOOT_FROM_UART_ALT
case BOOT_FROM_UART_ALT:
#endif
return BOOT_DEVICE_UART;
#ifdef BOOT_FROM_SATA
case BOOT_FROM_SATA:
case BOOT_FROM_SATA_ALT:
return BOOT_DEVICE_SATA;
#endif
case BOOT_FROM_SPI:
return BOOT_DEVICE_SPI;
default:
return BOOT_DEVICE_BOOTROM;
};
}
#else
static u32 get_boot_device(void)
{
return BOOT_DEVICE_BOOTROM;
}
#endif
u32 spl_boot_device(void)
{
u32 boot_device = get_boot_device();
@ -285,6 +217,15 @@ u32 spl_boot_device(void)
}
}
#else
u32 spl_boot_device(void)
{
return BOOT_DEVICE_BOOTROM;
}
#endif
int board_return_to_bootrom(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{