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[Qemu-devel] [PATCH 1/5] hw/pl181: Implement GPIO output pins for card s
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 1/5] hw/pl181: Implement GPIO output pins for card status |
Date: |
Mon, 21 Feb 2011 20:57:49 +0000 |
Add two GPIO output pins to the PL181 model to indicate the card
present and readonly status information. On ARM boards these usually
are reflected in a system register.
Signed-off-by: Peter Maydell <address@hidden>
---
hw/pl181.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/hw/pl181.c b/hw/pl181.c
index 36d9d02..6bc79f5 100644
--- a/hw/pl181.c
+++ b/hw/pl181.c
@@ -47,6 +47,8 @@ typedef struct {
int linux_hack;
uint32_t fifo[PL181_FIFO_LEN];
qemu_irq irq[2];
+ /* GPIO outputs for 'card is readonly' and 'card inserted' */
+ qemu_irq cardstatus[2];
} pl181_state;
#define PL181_CMD_INDEX 0x3f
@@ -444,6 +446,9 @@ static void pl181_reset(void *opaque)
s->linux_hack = 0;
s->mask[0] = 0;
s->mask[1] = 0;
+
+ /* We can assume our GPIO outputs have been wired up now */
+ sd_set_cb(s->card, s->cardstatus[0], s->cardstatus[1]);
}
static int pl181_init(SysBusDevice *dev)
@@ -457,6 +462,7 @@ static int pl181_init(SysBusDevice *dev)
sysbus_init_mmio(dev, 0x1000, iomemtype);
sysbus_init_irq(dev, &s->irq[0]);
sysbus_init_irq(dev, &s->irq[1]);
+ qdev_init_gpio_out(&s->busdev.qdev, s->cardstatus, 2);
dinfo = drive_get_next(IF_SD);
s->card = sd_init(dinfo ? dinfo->bdrv : NULL, 0);
qemu_register_reset(pl181_reset, s);
--
1.7.1