[MIPS] TXx9: Random cleanup

* Random cleanups spotted by checkpatch script.
* Do not initialize panic_timeout.  "panic=" kernel parameter can be used.
* Do not add "ip=any" or "ip=bootp".  This options is not board specific.
* Do not add "root=/dev/nfs".  This is default on CONFIG_ROOT_NFS.
* Kill unused error checking.
* Fix IRQ comment to match current code.
* Kill some unneeded includes
* ST0_ERL is already cleared in generic code.
* conswitchp is initialized generic code.
* __init is not needed in prototype.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 7 insertions, 31 deletions

diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c
index f01af382e9a8..962ada57d12d 100644
--- a/arch/mips/txx9/rbtx4927/setup.c
+++ b/arch/mips/txx9/rbtx4927/setup.c
@@ -46,7 +46,6 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/ioport.h>
-#include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <asm/io.h>
@@ -189,9 +188,6 @@ static void __init rbtx4927_mem_setup(void)
         u32 cp0_config;
         char *argptr;
 
-        /* f/w leaves this on at startup */
-        clear_c0_status(ST0_ERL);
-
         /* enable caches -- HCP5 does this, pmon does not */
         cp0_config = read_c0_config();
         cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
@@ -218,24 +214,9 @@ static void __init rbtx4927_mem_setup(void)
 
         tx4927_setup_serial();
 #ifdef CONFIG_SERIAL_TXX9_CONSOLE
-        argptr = prom_getcmdline();
-        if (strstr(argptr, "console=") == NULL) {
-                strcat(argptr, " console=ttyS0,38400");
-        }
-#endif
-
-#ifdef CONFIG_ROOT_NFS
-        argptr = prom_getcmdline();
-        if (strstr(argptr, "root=") == NULL) {
-                strcat(argptr, " root=/dev/nfs rw");
-        }
-#endif
-
-#ifdef CONFIG_IP_PNP
-        argptr = prom_getcmdline();
-        if (strstr(argptr, "ip=") == NULL) {
-                strcat(argptr, " ip=any");
-        }
+        argptr = prom_getcmdline();
+        if (!strstr(argptr, "console="))
+                strcat(argptr, " console=ttyS0,38400");
 #endif
 }
 
@@ -298,19 +279,17 @@ static void __init rbtx4927_time_init(void)
         tx4927_time_init(0);
 }
 
-static int __init toshiba_rbtx4927_rtc_init(void)
+static void __init toshiba_rbtx4927_rtc_init(void)
 {
         struct resource res = {
                 .start  = RBTX4927_BRAMRTC_BASE - IO_BASE,
                 .end    = RBTX4927_BRAMRTC_BASE - IO_BASE + 0x800 - 1,
                 .flags  = IORESOURCE_MEM,
         };
-        struct platform_device *dev =
-                platform_device_register_simple("rtc-ds1742", -1, &res, 1);
-        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+        platform_device_register_simple("rtc-ds1742", -1, &res, 1);
 }
 
-static int __init rbtx4927_ne_init(void)
+static void __init rbtx4927_ne_init(void)
 {
         struct resource res[] = {
                 {
@@ -322,10 +301,7 @@ static int __init rbtx4927_ne_init(void)
                         .flags  = IORESOURCE_IRQ,
                 }
         };
-        struct platform_device *dev =
-                platform_device_register_simple("ne", -1,
-                                                res, ARRAY_SIZE(res));
-        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+        platform_device_register_simple("ne", -1, res, ARRAY_SIZE(res));
 }
 
 static void __init rbtx4927_device_init(void)