Signed-off-by: RafaÅ MiÅecki <zajec5@xxxxxxxxx>
---
drivers/bcma/Kconfig | 5 ++++
drivers/bcma/host_pci.c | 52 +++++++++++++++++++++++++++++++++++++++++++++
include/linux/bcma/bcma.h | 18 +++++++++++++++
3 files changed, 75 insertions(+), 0 deletions(-)
diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig
index 353781b..83e9adf 100644
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -13,6 +13,11 @@ config BCMA
Bus driver for Broadcom specific Advanced Microcontroller Bus
Architecture.
+# Support for Block-I/O. SELECT this from the driver that needs it.
+config BCMA_BLOCKIO
+ bool
+ depends on BCMA
+
config BCMA_HOST_PCI_POSSIBLE
bool
depends on BCMA && PCI = y
diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
index ffd8797..279bf50 100644
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -64,6 +64,54 @@ static void bcma_host_pci_write32(struct bcma_device *core, u16 offset,
iowrite32(value, core->bus->mmio + offset);
}
+#ifdef CONFIG_BCMA_BLOCKIO
+void bcma_host_pci_block_read(struct bcma_device *core, void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ void __iomem *addr = core->bus->mmio + offset;
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ switch (reg_width) {
+ case sizeof(u8):
+ ioread8_rep(addr, buffer, count);
+ break;
+ case sizeof(u16):
+ WARN_ON(count & 1);
+ ioread16_rep(addr, buffer, count >> 1);
+ break;
+ case sizeof(u32):
+ WARN_ON(count & 3);
+ ioread32_rep(addr, buffer, count >> 2);
+ break;
+ default:
+ WARN_ON(1);
+ }
+}
+
+void bcma_host_pci_block_write(struct bcma_device *core, const void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ void __iomem *addr = core->bus->mmio + offset;
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ switch (reg_width) {
+ case sizeof(u8):
+ iowrite8_rep(addr, buffer, count);
+ break;
+ case sizeof(u16):
+ WARN_ON(count & 1);
+ iowrite16_rep(addr, buffer, count >> 1);
+ break;
+ case sizeof(u32):
+ WARN_ON(count & 3);
+ iowrite32_rep(addr, buffer, count >> 2);
+ break;
+ default:
+ WARN_ON(1);
+ }
+}
+#endif
+
static u32 bcma_host_pci_aread32(struct bcma_device *core, u16 offset)
{
if (core->bus->mapped_core != core)
@@ -86,6 +134,10 @@ const struct bcma_host_ops bcma_host_pci_ops = {
.write8 = bcma_host_pci_write8,
.write16 = bcma_host_pci_write16,
.write32 = bcma_host_pci_write32,
+#ifdef CONFIG_BCMA_BLOCKIO
+ .block_read = bcma_host_pci_block_read,
+ .block_write = bcma_host_pci_block_write,
+#endif
.aread32 = bcma_host_pci_aread32,
.awrite32 = bcma_host_pci_awrite32,
};
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index 8b0cef9..27a27a7 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -31,6 +31,12 @@ struct bcma_host_ops {
void (*write8)(struct bcma_device *core, u16 offset, u8 value);
void (*write16)(struct bcma_device *core, u16 offset, u16 value);
void (*write32)(struct bcma_device *core, u16 offset, u32 value);
+#ifdef CONFIG_BCMA_BLOCKIO
+ void (*block_read)(struct bcma_device *core, void *buffer,
+ size_t count, u16 offset, u8 reg_width);
+ void (*block_write)(struct bcma_device *core, const void *buffer,
+ size_t count, u16 offset, u8 reg_width);
+#endif
/* Agent ops */
u32 (*aread32)(struct bcma_device *core, u16 offset);
void (*awrite32)(struct bcma_device *core, u16 offset, u32 value);
@@ -210,6 +216,18 @@ void bcma_write32(struct bcma_device *core, u16 offset, u32 value)
{
core->bus->ops->write32(core, offset, value);
}
+#ifdef CONFIG_BCMA_BLOCKIO
+extern inline void bcma_block_read(struct bcma_device *core, void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ core->bus->ops->block_read(core, buffer, count, offset, reg_width);
+}
+extern inline void bcma_block_write(struct bcma_device *core, const void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ core->bus->ops->block_write(core, buffer, count, offset, reg_width);
+}
+#endif
extern inline u32 bcma_aread32(struct bcma_device *core, u16 offset)
{
return core->bus->ops->aread32(core, offset);
--
1.7.3.4
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