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ssb: move functions specific to SoC hosted bus to separated file 

This cleans main.c a bit and will allow us to compile SoC related code
conditionally in the future.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Rafał Miłecki 2015-10-25 19:32:42 +01:00 committed by Kalle Valo
parent 399500da18
commit 830c7df462
4 changed files with 180 additions and 161 deletions
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1
drivers/ssb/Makefile
View File

@ -7,6 +7,7 @@ ssb-$(CONFIG_SSB_SPROM) += sprom.o
ssb-$(CONFIG_SSB_PCIHOST) += pci.o pcihost_wrapper.o
ssb-$(CONFIG_SSB_PCMCIAHOST) += pcmcia.o bridge_pcmcia_80211.o
ssb-$(CONFIG_SSB_SDIOHOST) += sdio.o
ssb-y += host_soc.o
# built-in drivers
ssb-y += driver_chipcommon.o

173
drivers/ssb/host_soc.c Normal file
View File

@ -0,0 +1,173 @@
/*
* Sonics Silicon Backplane SoC host related functions.
* Subsystem core
*
* Copyright 2005, Broadcom Corporation
* Copyright 2006, 2007, Michael Buesch <m@bues.ch>
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#include <linux/ssb/ssb.h>
#include "ssb_private.h"
static u8 ssb_host_soc_read8(struct ssb_device *dev, u16 offset)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
return readb(bus->mmio + offset);
}
static u16 ssb_host_soc_read16(struct ssb_device *dev, u16 offset)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
return readw(bus->mmio + offset);
}
static u32 ssb_host_soc_read32(struct ssb_device *dev, u16 offset)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
return readl(bus->mmio + offset);
}
#ifdef CONFIG_SSB_BLOCKIO
static void ssb_host_soc_block_read(struct ssb_device *dev, void *buffer,
size_t count, u16 offset, u8 reg_width)
{
struct ssb_bus *bus = dev->bus;
void __iomem *addr;
offset += dev->core_index * SSB_CORE_SIZE;
addr = bus->mmio + offset;
switch (reg_width) {
case sizeof(u8): {
u8 *buf = buffer;
while (count) {
*buf = __raw_readb(addr);
buf++;
count--;
}
break;
}
case sizeof(u16): {
__le16 *buf = buffer;
SSB_WARN_ON(count & 1);
while (count) {
*buf = (__force __le16)__raw_readw(addr);
buf++;
count -= 2;
}
break;
}
case sizeof(u32): {
__le32 *buf = buffer;
SSB_WARN_ON(count & 3);
while (count) {
*buf = (__force __le32)__raw_readl(addr);
buf++;
count -= 4;
}
break;
}
default:
SSB_WARN_ON(1);
}
}
#endif /* CONFIG_SSB_BLOCKIO */
static void ssb_host_soc_write8(struct ssb_device *dev, u16 offset, u8 value)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
writeb(value, bus->mmio + offset);
}
static void ssb_host_soc_write16(struct ssb_device *dev, u16 offset, u16 value)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
writew(value, bus->mmio + offset);
}
static void ssb_host_soc_write32(struct ssb_device *dev, u16 offset, u32 value)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
writel(value, bus->mmio + offset);
}
#ifdef CONFIG_SSB_BLOCKIO
static void ssb_host_soc_block_write(struct ssb_device *dev, const void *buffer,
size_t count, u16 offset, u8 reg_width)
{
struct ssb_bus *bus = dev->bus;
void __iomem *addr;
offset += dev->core_index * SSB_CORE_SIZE;
addr = bus->mmio + offset;
switch (reg_width) {
case sizeof(u8): {
const u8 *buf = buffer;
while (count) {
__raw_writeb(*buf, addr);
buf++;
count--;
}
break;
}
case sizeof(u16): {
const __le16 *buf = buffer;
SSB_WARN_ON(count & 1);
while (count) {
__raw_writew((__force u16)(*buf), addr);
buf++;
count -= 2;
}
break;
}
case sizeof(u32): {
const __le32 *buf = buffer;
SSB_WARN_ON(count & 3);
while (count) {
__raw_writel((__force u32)(*buf), addr);
buf++;
count -= 4;
}
break;
}
default:
SSB_WARN_ON(1);
}
}
#endif /* CONFIG_SSB_BLOCKIO */
/* Ops for the plain SSB bus without a host-device (no PCI or PCMCIA). */
const struct ssb_bus_ops ssb_host_soc_ops = {
.read8 = ssb_host_soc_read8,
.read16 = ssb_host_soc_read16,
.read32 = ssb_host_soc_read32,
.write8 = ssb_host_soc_write8,
.write16 = ssb_host_soc_write16,
.write32 = ssb_host_soc_write32,
#ifdef CONFIG_SSB_BLOCKIO
.block_read = ssb_host_soc_block_read,
.block_write = ssb_host_soc_block_write,
#endif
};

162
drivers/ssb/main.c
View File

@ -596,166 +596,6 @@ static int ssb_attach_queued_buses(void)
return err;
}
static u8 ssb_ssb_read8(struct ssb_device *dev, u16 offset)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
return readb(bus->mmio + offset);
}
static u16 ssb_ssb_read16(struct ssb_device *dev, u16 offset)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
return readw(bus->mmio + offset);
}
static u32 ssb_ssb_read32(struct ssb_device *dev, u16 offset)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
return readl(bus->mmio + offset);
}
#ifdef CONFIG_SSB_BLOCKIO
static void ssb_ssb_block_read(struct ssb_device *dev, void *buffer,
size_t count, u16 offset, u8 reg_width)
{
struct ssb_bus *bus = dev->bus;
void __iomem *addr;
offset += dev->core_index * SSB_CORE_SIZE;
addr = bus->mmio + offset;
switch (reg_width) {
case sizeof(u8): {
u8 *buf = buffer;
while (count) {
*buf = __raw_readb(addr);
buf++;
count--;
}
break;
}
case sizeof(u16): {
__le16 *buf = buffer;
SSB_WARN_ON(count & 1);
while (count) {
*buf = (__force __le16)__raw_readw(addr);
buf++;
count -= 2;
}
break;
}
case sizeof(u32): {
__le32 *buf = buffer;
SSB_WARN_ON(count & 3);
while (count) {
*buf = (__force __le32)__raw_readl(addr);
buf++;
count -= 4;
}
break;
}
default:
SSB_WARN_ON(1);
}
}
#endif /* CONFIG_SSB_BLOCKIO */
static void ssb_ssb_write8(struct ssb_device *dev, u16 offset, u8 value)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
writeb(value, bus->mmio + offset);
}
static void ssb_ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
writew(value, bus->mmio + offset);
}
static void ssb_ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
{
struct ssb_bus *bus = dev->bus;
offset += dev->core_index * SSB_CORE_SIZE;
writel(value, bus->mmio + offset);
}
#ifdef CONFIG_SSB_BLOCKIO
static void ssb_ssb_block_write(struct ssb_device *dev, const void *buffer,
size_t count, u16 offset, u8 reg_width)
{
struct ssb_bus *bus = dev->bus;
void __iomem *addr;
offset += dev->core_index * SSB_CORE_SIZE;
addr = bus->mmio + offset;
switch (reg_width) {
case sizeof(u8): {
const u8 *buf = buffer;
while (count) {
__raw_writeb(*buf, addr);
buf++;
count--;
}
break;
}
case sizeof(u16): {
const __le16 *buf = buffer;
SSB_WARN_ON(count & 1);
while (count) {
__raw_writew((__force u16)(*buf), addr);
buf++;
count -= 2;
}
break;
}
case sizeof(u32): {
const __le32 *buf = buffer;
SSB_WARN_ON(count & 3);
while (count) {
__raw_writel((__force u32)(*buf), addr);
buf++;
count -= 4;
}
break;
}
default:
SSB_WARN_ON(1);
}
}
#endif /* CONFIG_SSB_BLOCKIO */
/* Ops for the plain SSB bus without a host-device (no PCI or PCMCIA). */
static const struct ssb_bus_ops ssb_ssb_ops = {
.read8 = ssb_ssb_read8,
.read16 = ssb_ssb_read16,
.read32 = ssb_ssb_read32,
.write8 = ssb_ssb_write8,
.write16 = ssb_ssb_write16,
.write32 = ssb_ssb_write32,
#ifdef CONFIG_SSB_BLOCKIO
.block_read = ssb_ssb_block_read,
.block_write = ssb_ssb_block_write,
#endif
};
static int ssb_fetch_invariants(struct ssb_bus *bus,
ssb_invariants_func_t get_invariants)
{
@ -927,7 +767,7 @@ int ssb_bus_ssbbus_register(struct ssb_bus *bus, unsigned long baseaddr,
int err;
bus->bustype = SSB_BUSTYPE_SSB;
bus->ops = &ssb_ssb_ops;
bus->ops = &ssb_host_soc_ops;
err = ssb_bus_register(bus, get_invariants, baseaddr);
if (!err) {

5
drivers/ssb/ssb_private.h
View File

@ -157,6 +157,11 @@ static inline int ssb_sdio_init(struct ssb_bus *bus)
}
#endif /* CONFIG_SSB_SDIOHOST */
/**************************************************
* host_soc.c
**************************************************/
extern const struct ssb_bus_ops ssb_host_soc_ops;
/* scan.c */
extern const char *ssb_core_name(u16 coreid);