1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/arch/arm/mach-mmp/common.c
*
* Code common to PXA168 processor lines
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <asm/page.h>
#include <asm/mach/map.h>
#include <asm/system_misc.h>
#include "addr-map.h"
#include <linux/soc/mmp/cputype.h>
#include "common.h"
#define MMP_CHIPID CIU_REG(0x00)
unsigned int mmp_chip_id;
EXPORT_SYMBOL(mmp_chip_id);
static struct map_desc standard_io_desc[] __initdata = {
{
.pfn = __phys_to_pfn(APB_PHYS_BASE),
.virtual = (unsigned long)APB_VIRT_BASE,
.length = APB_PHYS_SIZE,
.type = MT_DEVICE,
}, {
.pfn = __phys_to_pfn(AXI_PHYS_BASE),
.virtual = (unsigned long)AXI_VIRT_BASE,
.length = AXI_PHYS_SIZE,
.type = MT_DEVICE,
},
};
static struct map_desc mmp2_io_desc[] __initdata = {
{
.pfn = __phys_to_pfn(PGU_PHYS_BASE),
.virtual = (unsigned long)PGU_VIRT_BASE,
.length = PGU_PHYS_SIZE,
.type = MT_DEVICE,
},
};
void __init mmp_map_io(void)
{
iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
/* this is early, initialize mmp_chip_id here */
mmp_chip_id = __raw_readl(MMP_CHIPID);
}
void __init mmp2_map_io(void)
{
mmp_map_io();
iotable_init(mmp2_io_desc, ARRAY_SIZE(mmp2_io_desc));
}
|
