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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2008-10-21 00:01:06 +0900
committerRalf Baechle <ralf@linux-mips.org>2008-10-27 16:18:27 +0000
commit1ba5a1767416cfa4fa37096e160e764c56e1460a (patch)
tree8feceebc290143f5fc4e77700836a93a155178be
parentbc89b2bdefa5f56133d0b19a220880d4ada62560 (diff)
downloadlinux-next-1ba5a1767416cfa4fa37096e160e764c56e1460a.tar.gz
MIPS: RBTX4939: Add smc91x support
Add smc91x platform device to RBTX4939 board and some hacks for big endian. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--arch/mips/include/asm/mach-tx49xx/mangle-port.h26
-rw-r--r--arch/mips/txx9/generic/setup.c15
-rw-r--r--arch/mips/txx9/rbtx4939/setup.c43
3 files changed, 84 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-tx49xx/mangle-port.h b/arch/mips/include/asm/mach-tx49xx/mangle-port.h
new file mode 100644
index 000000000000..5e6912fdd0ed
--- /dev/null
+++ b/arch/mips/include/asm/mach-tx49xx/mangle-port.h
@@ -0,0 +1,26 @@
+#ifndef __ASM_MACH_TX49XX_MANGLE_PORT_H
+#define __ASM_MACH_TX49XX_MANGLE_PORT_H
+
+#define __swizzle_addr_b(port) (port)
+#define __swizzle_addr_w(port) (port)
+#define __swizzle_addr_l(port) (port)
+#define __swizzle_addr_q(port) (port)
+
+#define ioswabb(a, x) (x)
+#define __mem_ioswabb(a, x) (x)
+#if defined(CONFIG_TOSHIBA_RBTX4939) && \
+ (defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)) && \
+ defined(__BIG_ENDIAN)
+#define NEEDS_TXX9_IOSWABW
+extern u16 (*ioswabw)(volatile u16 *a, u16 x);
+extern u16 (*__mem_ioswabw)(volatile u16 *a, u16 x);
+#else
+#define ioswabw(a, x) le16_to_cpu(x)
+#define __mem_ioswabw(a, x) (x)
+#endif
+#define ioswabl(a, x) le32_to_cpu(x)
+#define __mem_ioswabl(a, x) (x)
+#define ioswabq(a, x) le64_to_cpu(x)
+#define __mem_ioswabq(a, x) (x)
+
+#endif /* __ASM_MACH_TX49XX_MANGLE_PORT_H */
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 5526375010f8..18086c549573 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -622,6 +622,21 @@ unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none;
EXPORT_SYMBOL(__swizzle_addr_b);
#endif
+#ifdef NEEDS_TXX9_IOSWABW
+static u16 ioswabw_default(volatile u16 *a, u16 x)
+{
+ return le16_to_cpu(x);
+}
+static u16 __mem_ioswabw_default(volatile u16 *a, u16 x)
+{
+ return x;
+}
+u16 (*ioswabw)(volatile u16 *a, u16 x) = ioswabw_default;
+EXPORT_SYMBOL(ioswabw);
+u16 (*__mem_ioswabw)(volatile u16 *a, u16 x) = __mem_ioswabw_default;
+EXPORT_SYMBOL(__mem_ioswabw);
+#endif
+
void __init txx9_physmap_flash_init(int no, unsigned long addr,
unsigned long size,
const struct physmap_flash_data *pdata)
diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c
index c88517774910..6daee9b1cd5e 100644
--- a/arch/mips/txx9/rbtx4939/setup.c
+++ b/arch/mips/txx9/rbtx4939/setup.c
@@ -14,6 +14,8 @@
#include <linux/types.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
+#include <linux/interrupt.h>
+#include <linux/smc91x.h>
#include <asm/reboot.h>
#include <asm/txx9/generic.h>
#include <asm/txx9/pci.h>
@@ -33,6 +35,21 @@ static void __init rbtx4939_time_init(void)
tx4939_time_init(0);
}
+#if defined(__BIG_ENDIAN) && \
+ (defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE))
+#define HAVE_RBTX4939_IOSWAB
+#define IS_CE1_ADDR(addr) \
+ ((((unsigned long)(addr) - IO_BASE) & 0xfff00000) == TXX9_CE(1))
+static u16 rbtx4939_ioswabw(volatile u16 *a, u16 x)
+{
+ return IS_CE1_ADDR(a) ? x : le16_to_cpu(x);
+}
+static u16 rbtx4939_mem_ioswabw(volatile u16 *a, u16 x)
+{
+ return !IS_CE1_ADDR(a) ? x : le16_to_cpu(x);
+}
+#endif /* __BIG_ENDIAN && CONFIG_SMC91X */
+
static void __init rbtx4939_pci_setup(void)
{
#ifdef CONFIG_PCI
@@ -272,6 +289,22 @@ static void __init rbtx4939_arch_init(void)
static void __init rbtx4939_device_init(void)
{
+ unsigned long smc_addr = RBTX4939_ETHER_ADDR - IO_BASE;
+ struct resource smc_res[] = {
+ {
+ .start = smc_addr,
+ .end = smc_addr + 0x10 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = RBTX4939_IRQ_ETHER,
+ /* override default irq flag defined in smc91x.h */
+ .flags = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
+ },
+ };
+ struct smc91x_platdata smc_pdata = {
+ .flags = SMC91X_USE_16BIT,
+ };
+ struct platform_device *pdev;
#if defined(CONFIG_TC35815) || defined(CONFIG_TC35815_MODULE)
int i, j;
unsigned char ethaddr[2][6];
@@ -288,6 +321,12 @@ static void __init rbtx4939_device_init(void)
}
tx4939_ethaddr_init(ethaddr[0], ethaddr[1]);
#endif
+ pdev = platform_device_alloc("smc91x", -1);
+ if (!pdev ||
+ platform_device_add_resources(pdev, smc_res, ARRAY_SIZE(smc_res)) ||
+ platform_device_add_data(pdev, &smc_pdata, sizeof(smc_pdata)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
rbtx4939_led_setup();
tx4939_wdt_init();
tx4939_ata_init();
@@ -304,6 +343,10 @@ static void __init rbtx4939_setup(void)
if (txx9_master_clock == 0)
txx9_master_clock = 20000000;
tx4939_setup();
+#ifdef HAVE_RBTX4939_IOSWAB
+ ioswabw = rbtx4939_ioswabw;
+ __mem_ioswabw = rbtx4939_mem_ioswabw;
+#endif
_machine_restart = rbtx4939_machine_restart;