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hw/arm/allwinner: add SD/MMC host controller

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The Allwinner System on Chip families sun4i and above contain
an integrated storage controller for Secure Digital (SD) and
Multi Media Card (MMC) interfaces. This commit adds support
for the Allwinner SD/MMC storage controller with the following
emulated features:

 * DMA transfers
 * Direct FIFO I/O
 * Short/Long format command responses
 * Auto-Stop command (CMD12)
 * Insert & remove card detection

The following boards are extended with the SD host controller:

 * Cubieboard (hw/arm/cubieboard.c)
 * Orange Pi PC (hw/arm/orangepi.c)

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200311221854.30370-9-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Niek Linnenbank 2020-03-11 23:18:44 +01:00 • committed by Peter Maydell
parent 6556617ce1
commit 82e4838249
11 changed files with 1059 additions and 1 deletions
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11
hw/arm/allwinner-a10.c
View file

@ -27,6 +27,7 @@
#include "hw/boards.h"
#include "hw/usb/hcd-ohci.h"
#define AW_A10_MMC0_BASE 0x01c0f000
#define AW_A10_PIC_REG_BASE 0x01c20400
#define AW_A10_PIT_REG_BASE 0x01c20c00
#define AW_A10_UART0_REG_BASE 0x01c28000
@ -64,6 +65,9 @@ static void aw_a10_init(Object *obj)
sizeof(s->ohci[i]), TYPE_SYSBUS_OHCI);
}
}
sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
TYPE_AW_SDHOST_SUN4I);
}
static void aw_a10_realize(DeviceState *dev, Error **errp)
@ -164,6 +168,13 @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
qdev_get_gpio_in(dev, 64 + i));
}
}
/* SD/MMC */
qdev_init_nofail(DEVICE(&s->mmc0));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->mmc0), 0, AW_A10_MMC0_BASE);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc0), 0, qdev_get_gpio_in(dev, 32));
object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
"sd-bus", &error_abort);
}
static void aw_a10_class_init(ObjectClass *oc, void *data)