u-boot/arch/arm/cpu/armv8/fsl-layerscape/spl.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

130 lines
3 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2014-2015 Freescale Semiconductor, Inc.
*/
#include <common.h>
#include <spl.h>
#include <asm/io.h>
#include <fsl_ifc.h>
#include <i2c.h>
#include <fsl_csu.h>
#include <asm/arch/fdt.h>
#include <asm/arch/ppa.h>
DECLARE_GLOBAL_DATA_PTR;
u32 spl_boot_device(void)
{
#ifdef CONFIG_SPL_MMC_SUPPORT
return BOOT_DEVICE_MMC1;
#endif
#ifdef CONFIG_SPL_NAND_SUPPORT
return BOOT_DEVICE_NAND;
#endif
return 0;
}
#ifdef CONFIG_SPL_BUILD
void spl_board_init(void)
{
#if defined(CONFIG_SECURE_BOOT) && defined(CONFIG_FSL_LSCH2)
/*
* In case of Secure Boot, the IBR configures the SMMU
* to allow only Secure transactions.
* SMMU must be reset in bypass mode.
* Set the ClientPD bit and Clear the USFCFG Bit
*/
u32 val;
val = (in_le32(SMMU_SCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
out_le32(SMMU_SCR0, val);
val = (in_le32(SMMU_NSCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
out_le32(SMMU_NSCR0, val);
#endif
#ifdef CONFIG_LAYERSCAPE_NS_ACCESS
enable_layerscape_ns_access();
#endif
#ifdef CONFIG_SPL_FSL_LS_PPA
ppa_init();
#endif
}
void board_init_f(ulong dummy)
{
/* Clear global data */
memset((void *)gd, 0, sizeof(gd_t));
board_early_init_f();
timer_init();
#ifdef CONFIG_ARCH_LS2080A
env_init();
#endif
get_clocks();
preloader_console_init();
spl_set_bd();
#ifdef CONFIG_SPL_I2C_SUPPORT
i2c_init_all();
#endif
#ifdef CONFIG_VID
init_func_vid();
#endif
dram_init();
#ifdef CONFIG_SPL_FSL_LS_PPA
#ifndef CONFIG_SYS_MEM_RESERVE_SECURE
#error Need secure RAM for PPA
#endif
/*
* Secure memory location is determined in dram_init_banksize().
* gd->ram_size is deducted by the size of secure ram.
*/
dram_init_banksize();
/*
* After dram_init_bank_size(), we know U-Boot only uses the first
* memory bank regardless how big the memory is.
*/
gd->ram_top = gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;
/*
* If PPA is loaded, U-Boot will resume running at EL2.
* Cache and MMU will be enabled. Need a place for TLB.
* U-Boot will be relocated to the end of available memory
* in first bank. At this point, we cannot know how much
* memory U-Boot uses. Put TLB table lower by SPL_TLB_SETBACK
* to avoid overlapping. As soon as the RAM version U-Boot sets
* up new MMU, this space is no longer needed.
*/
gd->ram_top -= SPL_TLB_SETBACK;
gd->arch.tlb_size = PGTABLE_SIZE;
gd->arch.tlb_addr = (gd->ram_top - gd->arch.tlb_size) & ~(0x10000 - 1);
gd->arch.tlb_allocated = gd->arch.tlb_addr;
#endif /* CONFIG_SPL_FSL_LS_PPA */
}
#ifdef CONFIG_SPL_OS_BOOT
/*
* Return
* 0 if booting into OS is selected
* 1 if booting into U-Boot is selected
*/
int spl_start_uboot(void)
{
env_init();
if (env_get_yesno("boot_os") != 0)
return 0;
return 1;
}
#endif /* CONFIG_SPL_OS_BOOT */
#ifdef CONFIG_SPL_LOAD_FIT
int board_fit_config_name_match(const char *name)
{
/* Just empty function now - can't decide what to choose */
debug("%s: %s\n", __func__, name);
return 0;
}
#endif
#endif /* CONFIG_SPL_BUILD */