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hw/pl061.c: Implement ARM PL061 as well as Luminary one

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ARM's PL061 has a different set of ID registers to the one in the
Luminary Stellaris; implement this so that the Linux driver can
identify the Realview PBX PL061 correctly.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Peter Maydell 2011-02-21 20:57:51 +00:00 committed by Aurelien Jarno
parent b50ff6f524
commit 7063f49f59
2 changed files with 20 additions and 5 deletions
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23
hw/pl061.c
View File

@ -24,6 +24,8 @@ do { fprintf(stderr, "pl061: error: " fmt , ## __VA_ARGS__);} while (0)
#endif
static const uint8_t pl061_id[12] =
{ 0x00, 0x00, 0x00, 0x00, 0x61, 0x10, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1 };
static const uint8_t pl061_id_luminary[12] =
{ 0x00, 0x00, 0x00, 0x00, 0x61, 0x00, 0x18, 0x01, 0x0d, 0xf0, 0x05, 0xb1 };
typedef struct {
@ -50,6 +52,7 @@ typedef struct {
uint8_t float_high;
qemu_irq irq;
qemu_irq out[8];
const unsigned char *id;
} pl061_state;
static void pl061_update(pl061_state *s)
@ -83,7 +86,7 @@ static uint32_t pl061_read(void *opaque, target_phys_addr_t offset)
pl061_state *s = (pl061_state *)opaque;
if (offset >= 0xfd0 && offset < 0x1000) {
return pl061_id[(offset - 0xfd0) >> 2];
return s->id[(offset - 0xfd0) >> 2];
}
if (offset < 0x400) {
return s->data & (offset >> 2);
@ -291,11 +294,11 @@ static int pl061_load(QEMUFile *f, void *opaque, int version_id)
return 0;
}
static int pl061_init(SysBusDevice *dev)
static int pl061_init(SysBusDevice *dev, const unsigned char *id)
{
int iomemtype;
pl061_state *s = FROM_SYSBUS(pl061_state, dev);
s->id = id;
iomemtype = cpu_register_io_memory(pl061_readfn,
pl061_writefn, s,
DEVICE_NATIVE_ENDIAN);
@ -308,10 +311,22 @@ static int pl061_init(SysBusDevice *dev)
return 0;
}
static int pl061_init_luminary(SysBusDevice *dev)
{
return pl061_init(dev, pl061_id_luminary);
}
static int pl061_init_arm(SysBusDevice *dev)
{
return pl061_init(dev, pl061_id);
}
static void pl061_register_devices(void)
{
sysbus_register_dev("pl061", sizeof(pl061_state),
pl061_init);
pl061_init_arm);
sysbus_register_dev("pl061_luminary", sizeof(pl061_state),
pl061_init_luminary);
}
device_init(pl061_register_devices)

2
hw/stellaris.c
View File

@ -1338,7 +1338,7 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
for (i = 0; i < 7; i++) {
if (board->dc4 & (1 << i)) {
gpio_dev[i] = sysbus_create_simple("pl061", gpio_addr[i],
gpio_dev[i] = sysbus_create_simple("pl061_luminary", gpio_addr[i],
pic[gpio_irq[i]]);
for (j = 0; j < 8; j++) {
gpio_in[i][j] = qdev_get_gpio_in(gpio_dev[i], j);