u-boot/arch/arm/include/asm/arch-exynos/spl.h
Przemyslaw Marczak 4fb4d55a35 arch:exynos: boot mode: add get_boot_mode(), code cleanup
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)

Changes v6:
- none

changes v7:
- change boot mode name: BOOT_MODE_MMC to BOOT_MODE_SD
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2014-09-05 13:58:49 +09:00

70 lines
2.2 KiB
C

/*
* Copyright (c) 2012 The Chromium OS Authors.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_ARCH_EXYNOS_SPL_H__
#define __ASM_ARCH_EXYNOS_SPL_H__
#include <asm/arch-exynos/dmc.h>
#include <asm/arch/power.h>
#ifndef __ASSEMBLY__
/* Parameters of early board initialization in SPL */
struct spl_machine_param {
/* Add fields as and when required */
u32 signature;
u32 version; /* Version number */
u32 size; /* Size of block */
/**
* Parameters we expect, in order, terminated with \0. Each parameter
* is a single character representing one 32-bit word in this
* structure.
*
* Valid characters in this string are:
*
* Code Name
* v mem_iv_size
* m mem_type
* u uboot_size
* b boot_source
* f frequency_mhz (memory frequency in MHz)
* a ARM clock frequency in MHz
* s serial base address
* i i2c base address for early access (meant for PMIC)
* r board rev GPIO numbers used to read board revision
* (lower halfword=bit 0, upper=bit 1)
* M Memory Manufacturer name
* \0 termination
*/
char params[12]; /* Length must be word-aligned */
u32 mem_iv_size; /* Memory channel interleaving size */
enum ddr_mode mem_type; /* Type of on-board memory */
/*
* U-boot size - The iROM mmc copy function used by the SPL takes a
* block count paramter to describe the u-boot size unlike the spi
* boot copy function which just uses the u-boot size directly. Align
* the u-boot size to block size (512 bytes) when populating the SPL
* table only for mmc boot.
*/
u32 uboot_size;
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 */
u32 i2c_base; /* i2c base address */
u32 board_rev_gpios; /* Board revision GPIOs */
enum mem_manuf mem_manuf; /* Memory Manufacturer */
} __attribute__((__packed__));
#endif
/**
* Validate signature and return a pointer to the parameter table. If the
* signature is invalid, call panic() and never return.
*
* @return pointer to the parameter table if signature matched or never return.
*/
struct spl_machine_param *spl_get_machine_params(void);
#endif /* __ASM_ARCH_EXYNOS_SPL_H__ */