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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
* (C) Copyright 2018 Neil Armstrong <narmstrong@baylibre.com>
*/
#include <init.h>
#include <net.h>
#include <asm/arch/boot.h>
#include <asm/arch/eth.h>
#include <asm/arch/axg.h>
#include <asm/arch/mem.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/armv8/mmu.h>
#include <linux/sizes.h>
DECLARE_GLOBAL_DATA_PTR;
int meson_get_boot_device(void)
{
return readl(AXG_AO_SEC_GP_CFG0) & AXG_AO_BOOT_DEVICE;
}
/* Configure the reserved memory zones exported by the secure registers
* into EFI and DTB reserved memory entries.
*/
void meson_init_reserved_memory(void *fdt)
{
u64 bl31_size, bl31_start;
u64 bl32_size, bl32_start;
u32 reg;
/*
* Get ARM Trusted Firmware reserved memory zones in :
* - AO_SEC_GP_CFG3: bl32 & bl31 size in KiB, can be 0
* - AO_SEC_GP_CFG5: bl31 physical start address, can be NULL
* - AO_SEC_GP_CFG4: bl32 physical start address, can be NULL
*/
reg = readl(AXG_AO_SEC_GP_CFG3);
bl31_size = ((reg & AXG_AO_BL31_RSVMEM_SIZE_MASK)
>> AXG_AO_BL31_RSVMEM_SIZE_SHIFT) * SZ_1K;
bl32_size = (reg & AXG_AO_BL32_RSVMEM_SIZE_MASK) * SZ_1K;
bl31_start = readl(AXG_AO_SEC_GP_CFG5);
bl32_start = readl(AXG_AO_SEC_GP_CFG4);
/* Add BL31 reserved zone */
if (bl31_start && bl31_size)
meson_board_add_reserved_memory(fdt, bl31_start, bl31_size);
/* Add BL32 reserved zone */
if (bl32_start && bl32_size)
meson_board_add_reserved_memory(fdt, bl32_start, bl32_size);
}
phys_size_t get_effective_memsize(void)
{
/* Size is reported in MiB, convert it in bytes */
return ((readl(AXG_AO_SEC_GP_CFG0) & AXG_AO_MEM_SIZE_MASK)
>> AXG_AO_MEM_SIZE_SHIFT) * SZ_1M;
}
static struct mm_region axg_mem_map[] = {
{
.virt = 0x0UL,
.phys = 0x0UL,
.size = 0x80000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
.virt = 0xf0000000UL,
.phys = 0xf0000000UL,
.size = 0x10000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
/* List terminator */
0,
}
};
struct mm_region *mem_map = axg_mem_map;
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