mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-13 14:53:06 +00:00
fb97b8621e
Add jump_to_image_linux() for arm64. Add "noreturn" flag to armv8_switch_to_el2(). Add hooks to fsl-layerscape to enable falcon boot. Signed-off-by: York Sun <york.sun@nxp.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Łukasz Majewski <lukma@denx.de> Tested-by: Łukasz Majewski <lukma@denx.de>
145 lines
3.2 KiB
C
145 lines
3.2 KiB
C
/*
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* Copyright 2014-2015 Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <spl.h>
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#include <asm/io.h>
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#include <fsl_ifc.h>
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#include <i2c.h>
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#include <fsl_csu.h>
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#include <asm/arch/fdt.h>
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#include <asm/arch/ppa.h>
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DECLARE_GLOBAL_DATA_PTR;
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u32 spl_boot_device(void)
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{
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#ifdef CONFIG_SPL_MMC_SUPPORT
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return BOOT_DEVICE_MMC1;
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#endif
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#ifdef CONFIG_SPL_NAND_SUPPORT
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return BOOT_DEVICE_NAND;
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#endif
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return 0;
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}
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u32 spl_boot_mode(const u32 boot_device)
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{
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switch (spl_boot_device()) {
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case BOOT_DEVICE_MMC1:
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#ifdef CONFIG_SPL_FAT_SUPPORT
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return MMCSD_MODE_FS;
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#else
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return MMCSD_MODE_RAW;
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#endif
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case BOOT_DEVICE_NAND:
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return 0;
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default:
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puts("spl: error: unsupported device\n");
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hang();
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}
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}
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#ifdef CONFIG_SPL_BUILD
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void spl_board_init(void)
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{
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#if defined(CONFIG_SECURE_BOOT) && defined(CONFIG_FSL_LSCH2)
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/*
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* In case of Secure Boot, the IBR configures the SMMU
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* to allow only Secure transactions.
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* SMMU must be reset in bypass mode.
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* Set the ClientPD bit and Clear the USFCFG Bit
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*/
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u32 val;
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val = (in_le32(SMMU_SCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
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out_le32(SMMU_SCR0, val);
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val = (in_le32(SMMU_NSCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
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out_le32(SMMU_NSCR0, val);
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#endif
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#ifdef CONFIG_LAYERSCAPE_NS_ACCESS
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enable_layerscape_ns_access();
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#endif
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#ifdef CONFIG_SPL_FSL_LS_PPA
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ppa_init();
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#endif
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}
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void board_init_f(ulong dummy)
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{
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/* Clear global data */
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memset((void *)gd, 0, sizeof(gd_t));
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board_early_init_f();
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timer_init();
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#ifdef CONFIG_ARCH_LS2080A
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env_init();
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#endif
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get_clocks();
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preloader_console_init();
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spl_set_bd();
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#ifdef CONFIG_SPL_I2C_SUPPORT
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i2c_init_all();
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#endif
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dram_init();
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#ifdef CONFIG_SPL_FSL_LS_PPA
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#ifndef CONFIG_SYS_MEM_RESERVE_SECURE
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#error Need secure RAM for PPA
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#endif
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/*
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* Secure memory location is determined in dram_init_banksize().
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* gd->ram_size is deducted by the size of secure ram.
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*/
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dram_init_banksize();
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/*
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* After dram_init_bank_size(), we know U-Boot only uses the first
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* memory bank regardless how big the memory is.
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*/
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gd->ram_top = gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;
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/*
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* If PPA is loaded, U-Boot will resume running at EL2.
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* Cache and MMU will be enabled. Need a place for TLB.
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* U-Boot will be relocated to the end of available memory
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* in first bank. At this point, we cannot know how much
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* memory U-Boot uses. Put TLB table lower by SPL_TLB_SETBACK
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* to avoid overlapping. As soon as the RAM version U-Boot sets
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* up new MMU, this space is no longer needed.
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*/
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gd->ram_top -= SPL_TLB_SETBACK;
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gd->arch.tlb_size = PGTABLE_SIZE;
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gd->arch.tlb_addr = (gd->ram_top - gd->arch.tlb_size) & ~(0x10000 - 1);
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gd->arch.tlb_allocated = gd->arch.tlb_addr;
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#endif /* CONFIG_SPL_FSL_LS_PPA */
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}
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#ifdef CONFIG_SPL_OS_BOOT
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/*
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* Return
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* 0 if booting into OS is selected
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* 1 if booting into U-Boot is selected
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*/
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int spl_start_uboot(void)
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{
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env_init();
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if (env_get_yesno("boot_os") != 0)
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return 0;
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return 1;
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}
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#endif /* CONFIG_SPL_OS_BOOT */
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#ifdef CONFIG_SPL_LOAD_FIT
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int board_fit_config_name_match(const char *name)
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{
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/* Just empty function now - can't decide what to choose */
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debug("%s: %s\n", __func__, name);
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return 0;
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}
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#endif
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#endif /* CONFIG_SPL_BUILD */
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