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-rw-r--r--include/linux/amba/bus.h45
-rw-r--r--include/linux/amba/mmci.h22
-rw-r--r--include/linux/amba/pl022.h5
-rw-r--r--include/linux/amba/serial.h2
4 files changed, 69 insertions, 5 deletions
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index 724c69c40bb8..7847e197730a 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -60,6 +60,9 @@ extern struct bus_type amba_bustype;
int amba_driver_register(struct amba_driver *);
void amba_driver_unregister(struct amba_driver *);
+struct amba_device *amba_device_alloc(const char *, resource_size_t, size_t);
+void amba_device_put(struct amba_device *);
+int amba_device_add(struct amba_device *, struct resource *);
int amba_device_register(struct amba_device *, struct resource *);
void amba_device_unregister(struct amba_device *);
struct amba_device *amba_find_device(const char *, struct device *, unsigned int, unsigned int);
@@ -89,4 +92,46 @@ void amba_release_regions(struct amba_device *);
#define amba_manf(d) AMBA_MANF_BITS((d)->periphid)
#define amba_part(d) AMBA_PART_BITS((d)->periphid)
+#define __AMBA_DEV(busid, data, mask) \
+ { \
+ .coherent_dma_mask = mask, \
+ .init_name = busid, \
+ .platform_data = data, \
+ }
+
+/*
+ * APB devices do not themselves have the ability to address memory,
+ * so DMA masks should be zero (much like USB peripheral devices.)
+ * The DMA controller DMA masks should be used instead (much like
+ * USB host controllers in conventional PCs.)
+ */
+#define AMBA_APB_DEVICE(name, busid, id, base, irqs, data) \
+struct amba_device name##_device = { \
+ .dev = __AMBA_DEV(busid, data, 0), \
+ .res = DEFINE_RES_MEM(base, SZ_4K), \
+ .irq = irqs, \
+ .periphid = id, \
+}
+
+/*
+ * AHB devices are DMA capable, so set their DMA masks
+ */
+#define AMBA_AHB_DEVICE(name, busid, id, base, irqs, data) \
+struct amba_device name##_device = { \
+ .dev = __AMBA_DEV(busid, data, ~0ULL), \
+ .res = DEFINE_RES_MEM(base, SZ_4K), \
+ .dma_mask = ~0ULL, \
+ .irq = irqs, \
+ .periphid = id, \
+}
+
+/*
+ * module_amba_driver() - Helper macro for drivers that don't do anything
+ * special in module init/exit. This eliminates a lot of boilerplate. Each
+ * module may only use this macro once, and calling it replaces module_init()
+ * and module_exit()
+ */
+#define module_amba_driver(__amba_drv) \
+ module_driver(__amba_drv, amba_driver_register, amba_driver_unregister)
+
#endif
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h
index 0101e9c17fa1..32a89cf5ec45 100644
--- a/include/linux/amba/mmci.h
+++ b/include/linux/amba/mmci.h
@@ -6,6 +6,19 @@
#include <linux/mmc/host.h>
+
+/*
+ * These defines is places here due to access is needed from machine
+ * configuration files. The ST Micro version does not have ROD and
+ * reuse the voltage registers for direction settings.
+ */
+#define MCI_ST_DATA2DIREN (1 << 2)
+#define MCI_ST_CMDDIREN (1 << 3)
+#define MCI_ST_DATA0DIREN (1 << 4)
+#define MCI_ST_DATA31DIREN (1 << 5)
+#define MCI_ST_FBCLKEN (1 << 7)
+#define MCI_ST_DATA74DIREN (1 << 8)
+
/* Just some dummy forwarding */
struct dma_chan;
@@ -18,7 +31,8 @@ struct dma_chan;
* @ocr_mask: available voltages on the 4 pins from the block, this
* is ignored if a regulator is used, see the MMC_VDD_* masks in
* mmc/host.h
- * @vdd_handler: a callback function to translate a MMC_VDD_*
+ * @ios_handler: a callback function to act on specfic ios changes,
+ * used for example to control a levelshifter
* mask into a value to be binary (or set some other custom bits
* in MMCIPWR) or:ed and written into the MMCIPWR register of the
* block. May also control external power based on the power_mode.
@@ -31,6 +45,8 @@ struct dma_chan;
* @capabilities: the capabilities of the block as implemented in
* this platform, signify anything MMC_CAP_* from mmc/host.h
* @capabilities2: more capabilities, MMC_CAP2_* from mmc/host.h
+ * @sigdir: a bit field indicating for what bits in the MMC bus the host
+ * should enable signal direction indication.
* @dma_filter: function used to select an appropriate RX and TX
* DMA channel to be used for DMA, if and only if you're deploying the
* generic DMA engine
@@ -46,14 +62,14 @@ struct dma_chan;
struct mmci_platform_data {
unsigned int f_max;
unsigned int ocr_mask;
- u32 (*vdd_handler)(struct device *, unsigned int vdd,
- unsigned char power_mode);
+ int (*ios_handler)(struct device *, struct mmc_ios *);
unsigned int (*status)(struct device *);
int gpio_wp;
int gpio_cd;
bool cd_invert;
unsigned long capabilities;
unsigned long capabilities2;
+ u32 sigdir;
bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
void *dma_rx_param;
void *dma_tx_param;
diff --git a/include/linux/amba/pl022.h b/include/linux/amba/pl022.h
index 572f637299c9..b8c51124ed19 100644
--- a/include/linux/amba/pl022.h
+++ b/include/linux/amba/pl022.h
@@ -25,8 +25,6 @@
#ifndef _SSP_PL022_H
#define _SSP_PL022_H
-#include <linux/device.h>
-
/**
* whether SSP is in loopback mode or not
*/
@@ -241,6 +239,8 @@ struct dma_chan;
* @autosuspend_delay: delay in ms following transfer completion before the
* runtime power management system suspends the device. A setting of 0
* indicates no delay and the device will be suspended immediately.
+ * @rt: indicates the controller should run the message pump with realtime
+ * priority to minimise the transfer latency on the bus.
*/
struct pl022_ssp_controller {
u16 bus_id;
@@ -250,6 +250,7 @@ struct pl022_ssp_controller {
void *dma_rx_param;
void *dma_tx_param;
int autosuspend_delay;
+ bool rt;
};
/**
diff --git a/include/linux/amba/serial.h b/include/linux/amba/serial.h
index 514ed45c462e..d117b29d1062 100644
--- a/include/linux/amba/serial.h
+++ b/include/linux/amba/serial.h
@@ -23,6 +23,8 @@
#ifndef ASM_ARM_HARDWARE_SERIAL_AMBA_H
#define ASM_ARM_HARDWARE_SERIAL_AMBA_H
+#include <linux/types.h>
+
/* -------------------------------------------------------------------------------
* From AMBA UART (PL010) Block Specification
* -------------------------------------------------------------------------------