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onenand: convert to memory API 

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Avi Kivity 2011-08-15 17:17:24 +03:00 committed by Anthony Liguori
parent 64066a8fb6
commit 689a1921ae
1 changed files with 37 additions and 32 deletions
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69
hw/onenand.c
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@ -23,6 +23,8 @@
#include "flash.h"
#include "irq.h"
#include "blockdev.h"
#include "memory.h"
#include "exec-memory.h"
/* 11 for 2kB-page OneNAND ("2nd generation") and 10 for 1kB-page chips */
#define PAGE_SHIFT 11
@ -45,10 +47,12 @@ typedef struct {
uint8_t *image;
uint8_t *otp;
uint8_t *current;
ram_addr_t ram;
MemoryRegion ram;
MemoryRegion mapped_ram;
uint8_t *boot[2];
uint8_t *data[2][2];
int iomemtype;
MemoryRegion iomem;
MemoryRegion container;
int cycle;
int otpmode;
@ -100,31 +104,36 @@ enum {
ONEN_LOCK_UNLOCKED = 1 << 2,
};
static void onenand_mem_setup(OneNANDState *s)
{
/* XXX: We should use IO_MEM_ROMD but we broke it earlier...
* Both 0x0000 ... 0x01ff and 0x8000 ... 0x800f can be used to
* write boot commands. Also take note of the BWPS bit. */
memory_region_init(&s->container, "onenand", 0x10000 << s->shift);
memory_region_add_subregion(&s->container, 0, &s->iomem);
memory_region_init_alias(&s->mapped_ram, "onenand-mapped-ram",
&s->ram, 0x0200 << s->shift,
0xbe00 << s->shift);
memory_region_add_subregion_overlap(&s->container,
0x0200 << s->shift,
&s->mapped_ram,
1);
}
void onenand_base_update(void *opaque, target_phys_addr_t new)
{
OneNANDState *s = (OneNANDState *) opaque;
s->base = new;
/* XXX: We should use IO_MEM_ROMD but we broke it earlier...
* Both 0x0000 ... 0x01ff and 0x8000 ... 0x800f can be used to
* write boot commands. Also take note of the BWPS bit. */
cpu_register_physical_memory(s->base + (0x0000 << s->shift),
0x0200 << s->shift, s->iomemtype);
cpu_register_physical_memory(s->base + (0x0200 << s->shift),
0xbe00 << s->shift,
(s->ram +(0x0200 << s->shift)) | IO_MEM_RAM);
if (s->iomemtype)
cpu_register_physical_memory_offset(s->base + (0xc000 << s->shift),
0x4000 << s->shift, s->iomemtype, (0xc000 << s->shift));
memory_region_add_subregion(get_system_memory(), s->base, &s->container);
}
void onenand_base_unmap(void *opaque)
{
OneNANDState *s = (OneNANDState *) opaque;
cpu_register_physical_memory(s->base,
0x10000 << s->shift, IO_MEM_UNASSIGNED);
memory_region_del_subregion(get_system_memory(), &s->container);
}
static void onenand_intr_update(OneNANDState *s)
@ -524,7 +533,8 @@ static void onenand_command(OneNANDState *s, int cmd)
onenand_intr_update(s);
}
static uint32_t onenand_read(void *opaque, target_phys_addr_t addr)
static uint64_t onenand_read(void *opaque, target_phys_addr_t addr,
unsigned size)
{
OneNANDState *s = (OneNANDState *) opaque;
int offset = addr >> s->shift;
@ -589,7 +599,7 @@ static uint32_t onenand_read(void *opaque, target_phys_addr_t addr)
}
static void onenand_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
uint64_t value, unsigned size)
{
OneNANDState *s = (OneNANDState *) opaque;
int offset = addr >> s->shift;
@ -628,7 +638,7 @@ static void onenand_write(void *opaque, target_phys_addr_t addr,
break;
default:
fprintf(stderr, "%s: unknown OneNAND boot command %x\n",
fprintf(stderr, "%s: unknown OneNAND boot command %"PRIx64"\n",
__FUNCTION__, value);
}
break;
@ -684,16 +694,10 @@ static void onenand_write(void *opaque, target_phys_addr_t addr,
}
}
static CPUReadMemoryFunc * const onenand_readfn[] = {
onenand_read, /* TODO */
onenand_read,
onenand_read,
};
static CPUWriteMemoryFunc * const onenand_writefn[] = {
onenand_write, /* TODO */
onenand_write,
onenand_write,
static const MemoryRegionOps onenand_ops = {
.read = onenand_read,
.write = onenand_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
void *onenand_init(BlockDriverState *bdrv,
@ -714,8 +718,8 @@ void *onenand_init(BlockDriverState *bdrv,
s->secs = size >> 9;
s->blockwp = g_malloc(s->blocks);
s->density_mask = (dev_id & 0x08) ? (1 << (6 + ((dev_id >> 4) & 7))) : 0;
s->iomemtype = cpu_register_io_memory(onenand_readfn,
onenand_writefn, s, DEVICE_NATIVE_ENDIAN);
memory_region_init_io(&s->iomem, &onenand_ops, s, "onenand",
0x10000 << s->shift);
s->bdrv = bdrv;
if (!s->bdrv) {
s->image = memset(g_malloc(size + (size >> 5)),
@ -723,14 +727,15 @@ void *onenand_init(BlockDriverState *bdrv,
}
s->otp = memset(g_malloc((64 + 2) << PAGE_SHIFT),
0xff, (64 + 2) << PAGE_SHIFT);
s->ram = qemu_ram_alloc(NULL, "onenand.ram", 0xc000 << s->shift);
ram = qemu_get_ram_ptr(s->ram);
memory_region_init_ram(&s->ram, NULL, "onenand.ram", 0xc000 << s->shift);
ram = memory_region_get_ram_ptr(&s->ram);
s->boot[0] = ram + (0x0000 << s->shift);
s->boot[1] = ram + (0x8000 << s->shift);
s->data[0][0] = ram + ((0x0200 + (0 << (PAGE_SHIFT - 1))) << s->shift);
s->data[0][1] = ram + ((0x8010 + (0 << (PAGE_SHIFT - 6))) << s->shift);
s->data[1][0] = ram + ((0x0200 + (1 << (PAGE_SHIFT - 1))) << s->shift);
s->data[1][1] = ram + ((0x8010 + (1 << (PAGE_SHIFT - 6))) << s->shift);
onenand_mem_setup(s);
onenand_reset(s, 1);