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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2014 - 2015 Xilinx, Inc.
* Michal Simek <michal.simek@xilinx.com>
*/
#include <common.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sys_proto.h>
#include <asm/armv8/mmu.h>
#include <asm/io.h>
#include <zynqmp_firmware.h>
#define ZYNQ_SILICON_VER_MASK 0xF000
#define ZYNQ_SILICON_VER_SHIFT 12
DECLARE_GLOBAL_DATA_PTR;
/*
* Number of filled static entries and also the first empty
* slot in zynqmp_mem_map.
*/
#define ZYNQMP_MEM_MAP_USED 4
#if !defined(CONFIG_ZYNQMP_NO_DDR)
#define DRAM_BANKS CONFIG_NR_DRAM_BANKS
#else
#define DRAM_BANKS 0
#endif
#if defined(CONFIG_DEFINE_TCM_OCM_MMAP)
#define TCM_MAP 1
#else
#define TCM_MAP 0
#endif
/* +1 is end of list which needs to be empty */
#define ZYNQMP_MEM_MAP_MAX (ZYNQMP_MEM_MAP_USED + DRAM_BANKS + TCM_MAP + 1)
static struct mm_region zynqmp_mem_map[ZYNQMP_MEM_MAP_MAX] = {
{
.virt = 0x80000000UL,
.phys = 0x80000000UL,
.size = 0x70000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
.virt = 0xf8000000UL,
.phys = 0xf8000000UL,
.size = 0x07e00000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
.virt = 0x400000000UL,
.phys = 0x400000000UL,
.size = 0x400000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
.virt = 0x1000000000UL,
.phys = 0x1000000000UL,
.size = 0xf000000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}
};
void mem_map_fill(void)
{
int banks = ZYNQMP_MEM_MAP_USED;
#if defined(CONFIG_DEFINE_TCM_OCM_MMAP)
zynqmp_mem_map[banks].virt = 0xffe00000UL;
zynqmp_mem_map[banks].phys = 0xffe00000UL;
zynqmp_mem_map[banks].size = 0x00200000UL;
zynqmp_mem_map[banks].attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE;
banks = banks + 1;
#endif
#if !defined(CONFIG_ZYNQMP_NO_DDR)
for (int i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
/* Zero size means no more DDR that's this is end */
if (!gd->bd->bi_dram[i].size)
break;
zynqmp_mem_map[banks].virt = gd->bd->bi_dram[i].start;
zynqmp_mem_map[banks].phys = gd->bd->bi_dram[i].start;
zynqmp_mem_map[banks].size = gd->bd->bi_dram[i].size;
zynqmp_mem_map[banks].attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE;
banks = banks + 1;
}
#endif
}
struct mm_region *mem_map = zynqmp_mem_map;
u64 get_page_table_size(void)
{
return 0x14000;
}
#if defined(CONFIG_SYS_MEM_RSVD_FOR_MMU) || defined(CONFIG_DEFINE_TCM_OCM_MMAP)
void tcm_init(u8 mode)
{
puts("WARNING: Initializing TCM overwrites TCM content\n");
initialize_tcm(mode);
memset((void *)ZYNQMP_TCM_BASE_ADDR, 0, ZYNQMP_TCM_SIZE);
}
#endif
#ifdef CONFIG_SYS_MEM_RSVD_FOR_MMU
int reserve_mmu(void)
{
tcm_init(TCM_LOCK);
gd->arch.tlb_size = PGTABLE_SIZE;
gd->arch.tlb_addr = ZYNQMP_TCM_BASE_ADDR;
return 0;
}
#endif
static unsigned int zynqmp_get_silicon_version_secure(void)
{
u32 ver;
ver = readl(&csu_base->version);
ver &= ZYNQMP_SILICON_VER_MASK;
ver >>= ZYNQMP_SILICON_VER_SHIFT;
return ver;
}
unsigned int zynqmp_get_silicon_version(void)
{
if (current_el() == 3)
return zynqmp_get_silicon_version_secure();
gd->cpu_clk = get_tbclk();
switch (gd->cpu_clk) {
case 50000000:
return ZYNQMP_CSU_VERSION_QEMU;
}
return ZYNQMP_CSU_VERSION_SILICON;
}
static int zynqmp_mmio_rawwrite(const u32 address,
const u32 mask,
const u32 value)
{
u32 data;
u32 value_local = value;
int ret;
ret = zynqmp_mmio_read(address, &data);
if (ret)
return ret;
data &= ~mask;
value_local &= mask;
value_local |= data;
writel(value_local, (ulong)address);
return 0;
}
static int zynqmp_mmio_rawread(const u32 address, u32 *value)
{
*value = readl((ulong)address);
return 0;
}
int zynqmp_mmio_write(const u32 address,
const u32 mask,
const u32 value)
{
if (IS_ENABLED(CONFIG_SPL_BUILD) || current_el() == 3)
return zynqmp_mmio_rawwrite(address, mask, value);
#if defined(CONFIG_ZYNQMP_FIRMWARE)
else
return xilinx_pm_request(PM_MMIO_WRITE, address, mask,
value, 0, NULL);
#endif
return -EINVAL;
}
int zynqmp_mmio_read(const u32 address, u32 *value)
{
u32 ret = -EINVAL;
if (!value)
return ret;
if (IS_ENABLED(CONFIG_SPL_BUILD) || current_el() == 3) {
ret = zynqmp_mmio_rawread(address, value);
}
#if defined(CONFIG_ZYNQMP_FIRMWARE)
else {
u32 ret_payload[PAYLOAD_ARG_CNT];
ret = xilinx_pm_request(PM_MMIO_READ, address, 0, 0,
0, ret_payload);
*value = ret_payload[1];
}
#endif
return ret;
}
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