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ARM: rmobile: Unify memory map for RCar Gen3

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Unify the R7A7795 and R8A7796 memory maps in memmap-gen3 and, for now,
select which one is used based on which SoC is selected. Since this is
done in C code instead of statically assigned now, the decision can be
taken by PRR SoC match as well, which will be done in a subsequent patch.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
This commit is contained in:
Marek Vasut 2017-11-25 23:24:01 +01:00
parent 262e91566f
commit a523af69e8
6 changed files with 72 additions and 62 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/mach-rmobile/Makefile
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@ -16,7 +16,7 @@ obj-$(CONFIG_R8A7791) += lowlevel_init_ca15.o cpu_info-rcar.o pfc-r8a7791.o
obj-$(CONFIG_R8A7792) += lowlevel_init_ca15.o cpu_info-rcar.o pfc-r8a7792.o
obj-$(CONFIG_R8A7793) += lowlevel_init_ca15.o cpu_info-rcar.o pfc-r8a7793.o
obj-$(CONFIG_R8A7794) += lowlevel_init_ca15.o cpu_info-rcar.o pfc-r8a7794.o
obj-$(CONFIG_R8A7795) += lowlevel_init_gen3.o cpu_info-rcar.o memmap-r8a7795.o
obj-$(CONFIG_R8A7796) += lowlevel_init_gen3.o cpu_info-rcar.o memmap-r8a7796.o
obj-$(CONFIG_R8A7795) += lowlevel_init_gen3.o cpu_info-rcar.o memmap-gen3.o
obj-$(CONFIG_R8A7796) += lowlevel_init_gen3.o cpu_info-rcar.o memmap-gen3.o
obj-$(CONFIG_SH73A0) += lowlevel_init.o cpu_info-sh73a0.o pfc-sh73a0.o
obj-$(CONFIG_TMU_TIMER) += ../../sh/lib/time.o

3
arch/arm/mach-rmobile/cpu_info.c
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@ -18,6 +18,9 @@ int arch_cpu_init(void)
#ifndef CONFIG_SYS_DCACHE_OFF
void enable_caches(void)
{
#if defined(CONFIG_RCAR_GEN3)
rcar_gen3_memmap_fixup();
#endif
dcache_enable();
}
#endif

1
arch/arm/mach-rmobile/include/mach/rmobile.h
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@ -38,6 +38,7 @@
u32 rmobile_get_cpu_type(void);
u32 rmobile_get_cpu_rev_integer(void);
u32 rmobile_get_cpu_rev_fraction(void);
void rcar_gen3_memmap_fixup(void);
#endif /* __ASSEMBLY__ */
#endif /* __ASM_ARCH_RMOBILE_H */

66
arch/arm/mach-rmobile/memmap-gen3.c Normal file
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@ -0,0 +1,66 @@
/*
* Renesas RCar Gen3 memory map tables
*
* Copyright (C) 2017 Marek Vasut <marek.vasut@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/armv8/mmu.h>
static struct mm_region r8a7795_mem_map[] = {
{
.virt = 0x0UL,
.phys = 0x0UL,
.size = 0x80000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
.virt = 0x80000000UL,
.phys = 0x80000000UL,
.size = 0x80000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
/* List terminator */
0,
}
};
static struct mm_region r8a7796_mem_map[] = {
{
.virt = 0x0UL,
.phys = 0x0UL,
.size = 0xe0000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
.virt = 0xe0000000UL,
.phys = 0xe0000000UL,
.size = 0xe0000000UL,
.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 = r8a7795_mem_map;
void rcar_gen3_memmap_fixup(void)
{
u32 cpu_type = rmobile_get_cpu_type();
switch (cpu_type) {
case RMOBILE_CPU_TYPE_R8A7795:
mem_map = r8a7795_mem_map;
break;
case RMOBILE_CPU_TYPE_R8A7796:
mem_map = r8a7796_mem_map;
break;
}
}

30
arch/arm/mach-rmobile/memmap-r8a7795.c
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@ -1,30 +0,0 @@
/*
* Copyright (C) 2016 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/armv8/mmu.h>
static struct mm_region r8a7795_mem_map[] = {
{
.virt = 0x0UL,
.phys = 0x0UL,
.size = 0x80000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
.virt = 0x80000000UL,
.phys = 0x80000000UL,
.size = 0x80000000UL,
.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 = r8a7795_mem_map;

30
arch/arm/mach-rmobile/memmap-r8a7796.c
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@ -1,30 +0,0 @@
/*
* Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/armv8/mmu.h>
static struct mm_region r8a7796_mem_map[] = {
{
.virt = 0x0UL,
.phys = 0x0UL,
.size = 0xe0000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
.virt = 0xe0000000UL,
.phys = 0xe0000000UL,
.size = 0xe0000000UL,
.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 = r8a7796_mem_map;