This patch introduces code clean-up for exynos boot mode check. It includes: - removal of typedef: boot_mode - move the boot mode enum to arch-exynos/power.h - add bootmode for sequence: eMMC 4.4 ch4 / SD ch2 - add new function: get_boot_mode() for OM[5:1] pin check - update spl boot code
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com
Changes v5: - exynos: boot mode: add missing bootmode (1st:EMMC 4.4 / 2nd:SD ch2) --- arch/arm/cpu/armv7/exynos/power.c | 7 +++++++ arch/arm/cpu/armv7/exynos/spl_boot.c | 5 ++--- arch/arm/include/asm/arch-exynos/power.h | 21 +++++++++++++++++++++ arch/arm/include/asm/arch-exynos/spl.h | 17 ++--------------- 4 files changed, 32 insertions(+), 18 deletions(-)
diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c index 638ee0b..e1ab3d6 100644 --- a/arch/arm/cpu/armv7/exynos/power.c +++ b/arch/arm/cpu/armv7/exynos/power.c @@ -202,3 +202,10 @@ void power_exit_wakeup(void) else exynos4_power_exit_wakeup(); } + +unsigned int get_boot_mode(void) +{ + unsigned int om_pin = samsung_get_base_power(); + + return readl(om_pin) & OM_PIN_MASK; +} diff --git a/arch/arm/cpu/armv7/exynos/spl_boot.c b/arch/arm/cpu/armv7/exynos/spl_boot.c index 7916630..87f9214 100644 --- a/arch/arm/cpu/armv7/exynos/spl_boot.c +++ b/arch/arm/cpu/armv7/exynos/spl_boot.c @@ -20,7 +20,6 @@ #include "clock_init.h"
DECLARE_GLOBAL_DATA_PTR; -#define OM_STAT (0x1f << 1)
/* Index into irom ptr table */ enum index { @@ -184,7 +183,7 @@ static void exynos_spi_copy(unsigned int uboot_size, unsigned int uboot_addr) */ void copy_uboot_to_ram(void) { - enum boot_mode bootmode = BOOT_MODE_OM; + u32 bootmode = BOOT_MODE_OM;
u32 (*copy_bl2)(u32 offset, u32 nblock, u32 dst) = NULL; u32 offset = 0, size = 0; @@ -207,7 +206,7 @@ void copy_uboot_to_ram(void) #endif
if (bootmode == BOOT_MODE_OM) - bootmode = readl(samsung_get_base_power()) & OM_STAT; + bootmode = get_boot_mode();
switch (bootmode) { #ifdef CONFIG_SPI_BOOTING diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h index 4f2447b..1c0f144 100644 --- a/arch/arm/include/asm/arch-exynos/power.h +++ b/arch/arm/include/asm/arch-exynos/power.h @@ -1670,6 +1670,27 @@ struct exynos5420_power { }; #endif /* __ASSEMBLY__ */
+#define OM_PIN_BITS 0x1f +#define OM_PIN_SHIFT 0x1 +#define OM_PIN_MASK (OM_PIN_BITS << OM_PIN_SHIFT) + +enum { + /* + * Assign the OM pin values for respective boot modes. + * Exynos4 does not support spi boot and the mmc boot OM + * pin values are the same across Exynos4 and Exynos5. + */ + BOOT_MODE_MMC = 4, /* SD_CH2 | USB */ + BOOT_MODE_EMMC = 8, /* EMMC4.4 | USB */ + BOOT_MODE_EMMC_SD = 40, /* EMMC4.4 | SD_CH2 */ + BOOT_MODE_SERIAL = 20, + /* Boot based on Operating Mode pin settings */ + BOOT_MODE_OM = 32, + BOOT_MODE_USB, /* Boot using USB download */ +}; + +unsigned int get_boot_mode(void); + void set_mipi_phy_ctrl(unsigned int dev_index, unsigned int enable);
#define EXYNOS_MIPI_PHY_ENABLE (1 << 0) diff --git a/arch/arm/include/asm/arch-exynos/spl.h b/arch/arm/include/asm/arch-exynos/spl.h index b1d68c3..cdcb2bc 100644 --- a/arch/arm/include/asm/arch-exynos/spl.h +++ b/arch/arm/include/asm/arch-exynos/spl.h @@ -8,20 +8,7 @@ #define __ASM_ARCH_EXYNOS_SPL_H__
#include <asm/arch-exynos/dmc.h> - -enum boot_mode { - /* - * Assign the OM pin values for respective boot modes. - * Exynos4 does not support spi boot and the mmc boot OM - * pin values are the same across Exynos4 and Exynos5. - */ - BOOT_MODE_MMC = 4, - BOOT_MODE_EMMC = 8, /* EMMC4.4 */ - BOOT_MODE_SERIAL = 20, - /* Boot based on Operating Mode pin settings */ - BOOT_MODE_OM = 32, - BOOT_MODE_USB, /* Boot using USB download */ -}; +#include <asm/arch/power.h>
#ifndef __ASSEMBLY__ /* Parameters of early board initialization in SPL */ @@ -62,7 +49,7 @@ struct spl_machine_param { * table only for mmc boot. */ u32 uboot_size; - enum boot_mode boot_source; /* Boot device */ + unsigned boot_source; /* Boot device */ unsigned frequency_mhz; /* Frequency of memory in MHz */ unsigned arm_freq_mhz; /* ARM Frequency in MHz */ u32 serial_base; /* Serial base address */