mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-08 11:13:45 +09:00
83d290c56f
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>
131 lines
3.0 KiB
C
131 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
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*/
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#include <common.h>
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#include <linux/libfdt.h>
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#include <linux/err.h>
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#include <asm/arch/gxbb.h>
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#include <asm/arch/sm.h>
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#include <asm/armv8/mmu.h>
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#include <asm/unaligned.h>
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#include <linux/sizes.h>
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#include <efi_loader.h>
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#include <asm/io.h>
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DECLARE_GLOBAL_DATA_PTR;
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int dram_init(void)
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{
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const fdt64_t *val;
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int offset;
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int len;
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offset = fdt_path_offset(gd->fdt_blob, "/memory");
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if (offset < 0)
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return -EINVAL;
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val = fdt_getprop(gd->fdt_blob, offset, "reg", &len);
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if (len < sizeof(*val) * 2)
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return -EINVAL;
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/* Use unaligned access since cache is still disabled */
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gd->ram_size = get_unaligned_be64(&val[1]);
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return 0;
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}
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phys_size_t get_effective_memsize(void)
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{
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/* Size is reported in MiB, convert it in bytes */
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return ((readl(GXBB_AO_SEC_GP_CFG0) & GXBB_AO_MEM_SIZE_MASK)
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>> GXBB_AO_MEM_SIZE_SHIFT) * SZ_1M;
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}
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static void meson_board_add_reserved_memory(void *fdt, u64 start, u64 size)
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{
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int ret;
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ret = fdt_add_mem_rsv(fdt, start, size);
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if (ret)
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printf("Could not reserve zone @ 0x%llx\n", start);
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if (IS_ENABLED(CONFIG_EFI_LOADER)) {
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efi_add_memory_map(start,
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ALIGN(size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT,
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EFI_RESERVED_MEMORY_TYPE, false);
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}
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}
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void meson_gx_init_reserved_memory(void *fdt)
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{
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u64 bl31_size, bl31_start;
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u64 bl32_size, bl32_start;
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u32 reg;
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/*
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* Get ARM Trusted Firmware reserved memory zones in :
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* - AO_SEC_GP_CFG3: bl32 & bl31 size in KiB, can be 0
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* - AO_SEC_GP_CFG5: bl31 physical start address, can be NULL
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* - AO_SEC_GP_CFG4: bl32 physical start address, can be NULL
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*/
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reg = readl(GXBB_AO_SEC_GP_CFG3);
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bl31_size = ((reg & GXBB_AO_BL31_RSVMEM_SIZE_MASK)
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>> GXBB_AO_BL31_RSVMEM_SIZE_SHIFT) * SZ_1K;
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bl32_size = (reg & GXBB_AO_BL32_RSVMEM_SIZE_MASK) * SZ_1K;
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bl31_start = readl(GXBB_AO_SEC_GP_CFG5);
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bl32_start = readl(GXBB_AO_SEC_GP_CFG4);
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/*
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* Early Meson GXBB Firmware revisions did not provide the reserved
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* memory zones in the registers, keep fixed memory zone handling.
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*/
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if (IS_ENABLED(CONFIG_MESON_GXBB) &&
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!reg && !bl31_start && !bl32_start) {
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bl31_start = 0x10000000;
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bl31_size = 0x200000;
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}
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/* Add first 16MiB reserved zone */
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meson_board_add_reserved_memory(fdt, 0, GXBB_FIRMWARE_MEM_SIZE);
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/* Add BL31 reserved zone */
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if (bl31_start && bl31_size)
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meson_board_add_reserved_memory(fdt, bl31_start, bl31_size);
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/* Add BL32 reserved zone */
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if (bl32_start && bl32_size)
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meson_board_add_reserved_memory(fdt, bl32_start, bl32_size);
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}
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void reset_cpu(ulong addr)
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{
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psci_system_reset();
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}
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static struct mm_region gxbb_mem_map[] = {
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{
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.virt = 0x0UL,
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.phys = 0x0UL,
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.size = 0x80000000UL,
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.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
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PTE_BLOCK_INNER_SHARE
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}, {
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.virt = 0x80000000UL,
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.phys = 0x80000000UL,
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.size = 0x80000000UL,
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.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
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PTE_BLOCK_NON_SHARE |
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PTE_BLOCK_PXN | PTE_BLOCK_UXN
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}, {
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/* List terminator */
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0,
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}
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};
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struct mm_region *mem_map = gxbb_mem_map;
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