haraldwolff/qemu-patch-raspberry4
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ds1225y: Remove protection stuff, which doesn't belong to this device

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Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Hervé Poussineau 2011-07-18 23:34:20 +02:00 committed by Blue Swirl
parent b7d69dc233
commit 86f25c7c37
2 changed files with 1 additions and 42 deletions
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42
hw/ds1225y.c
View file

@ -33,7 +33,6 @@ typedef struct ds1225y_t
uint32_t chip_size;
QEMUFile *file;
uint8_t *contents;
uint8_t protection;
} ds1225y_t;
@ -98,34 +97,6 @@ static void nvram_writel (void *opaque, target_phys_addr_t addr, uint32_t val)
nvram_writeb(opaque, addr + 3, (val >> 24) & 0xff);
}
static void nvram_writeb_protected (void *opaque, target_phys_addr_t addr, uint32_t val)
{
ds1225y_t *s = opaque;
if (s->protection != 7) {
#ifdef DEBUG_NVRAM
printf("nvram: prevent write of 0x%x at " TARGET_FMT_lx "\n", val, addr);
#endif
return;
}
nvram_writeb(opaque, addr, val);
}
static void nvram_writew_protected (void *opaque, target_phys_addr_t addr, uint32_t val)
{
nvram_writeb_protected(opaque, addr, val & 0xff);
nvram_writeb_protected(opaque, addr + 1, (val >> 8) & 0xff);
}
static void nvram_writel_protected (void *opaque, target_phys_addr_t addr, uint32_t val)
{
nvram_writeb_protected(opaque, addr, val & 0xff);
nvram_writeb_protected(opaque, addr + 1, (val >> 8) & 0xff);
nvram_writeb_protected(opaque, addr + 2, (val >> 16) & 0xff);
nvram_writeb_protected(opaque, addr + 3, (val >> 24) & 0xff);
}
static CPUReadMemoryFunc * const nvram_read[] = {
&nvram_readb,
&nvram_readw,
@ -138,23 +109,16 @@ static CPUWriteMemoryFunc * const nvram_write[] = {
&nvram_writel,
};
static CPUWriteMemoryFunc * const nvram_write_protected[] = {
&nvram_writeb_protected,
&nvram_writew_protected,
&nvram_writel_protected,
};
/* Initialisation routine */
void *ds1225y_init(target_phys_addr_t mem_base, const char *filename)
{
ds1225y_t *s;
int mem_indexRW, mem_indexRP;
int mem_indexRW;
QEMUFile *file;
s = qemu_mallocz(sizeof(ds1225y_t));
s->chip_size = 0x2000; /* Fixed for ds1225y chip: 8 KiB */
s->contents = qemu_mallocz(s->chip_size);
s->protection = 7;
/* Read current file */
file = qemu_fopen(filename, "rb");
@ -174,9 +138,5 @@ void *ds1225y_init(target_phys_addr_t mem_base, const char *filename)
mem_indexRW = cpu_register_io_memory(nvram_read, nvram_write, s,
DEVICE_NATIVE_ENDIAN);
cpu_register_physical_memory(mem_base, s->chip_size, mem_indexRW);
/* Read/write protected memory */
mem_indexRP = cpu_register_io_memory(nvram_read, nvram_write_protected, s,
DEVICE_NATIVE_ENDIAN);
cpu_register_physical_memory(mem_base + s->chip_size, s->chip_size, mem_indexRP);
return s;
}

1
hw/mips.h
View file

@ -10,7 +10,6 @@ PCIBus *bonito_init(qemu_irq *pic);
/* ds1225y.c */
void *ds1225y_init(target_phys_addr_t mem_base, const char *filename);
void ds1225y_set_protection(void *opaque, int protection);
/* g364fb.c */
int g364fb_mm_init(target_phys_addr_t vram_base,