add hw/omap3_mmc.c

Add omap3 specific mmc/sd driver

omap3_mmc: fix cmd12/52 handling during inactive data transfer

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>

omap3_mmc qdev conversion

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>

make-omap3_mmc-status-register

make omap3_mmc status register directly accessible

Changes in the status register are immediately in effect, i.e. the guest
does not need to read the status register first before writing changes to it.
This change may cause problems if guest code does not handle properly the
case where transfers get completed immediately when initiated.

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>

hw-omap3_mmc-c-use-symbolic-co

hw/omap3_mmc.c: Use symbolic constants for status register bits

Use symbolic constants rather than hardcoded numeric values for the
OMAP3 MMC status register bits, to improve readability.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw-omap3_mmc-c-set-tc-status-b

hw/omap3_mmc.c: Set TC status bit for R1b no-data commands

We emulate MMC commands with response type R1b and no data transfer
instantaneously, so we must set the TC bit as well as the CC bit,
to indicate that the "busy" period has ended.

Without this fix the Linux driver will hang waiting for a TC interrupt
that never happens when it tries to do a block erase.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/hw/omap.h b/hw/omap.h
index 2371e1d4e3..9ed96258a0 100644
--- a/hw/omap.h
+++ b/hw/omap.h
@@ -959,6 +959,10 @@ void omap_mmc_reset(struct omap_mmc_s *s);
 void omap_mmc_handlers(struct omap_mmc_s *s, qemu_irq ro, qemu_irq cover);
 void omap_mmc_enable(struct omap_mmc_s *s, int enable);
 
+/* omap3_mmc.c */
+void omap3_mmc_attach(DeviceState *dev, BlockDriverState *bs,
+                      int is_spi, int is_mmc);
+
 /* omap_i2c.c */
 i2c_bus *omap_i2c_bus(DeviceState *omap_i2c);