sh: Kill off cf-enabler with extreme prejudice.

Now that the rest of the boards that were using cf-enabler "generically"
have switched to setting up their mappings on their own, only the mach-se
boards were left using it. All of the cf-enabler using mach-se boards
use a special initialization of the MRSHPC windows rather than going
through the special PTE as other SH-4 platforms do. This consolidates
the MRSHPC setup logic, hooks it up on the boards that care, and gets rid
of any and all remaining references to cf-enabler.

This has been long overdue, as cf-enabler has been the bane of
arch/sh/kernel for the last 7 years. Good riddance.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/Kconfig

@@ -701,49 +701,6 @@ config MAPLE
          Dreamcast with a serial line terminal or a remote network
          connection.
 
-config CF_ENABLER
-	bool "Compact Flash Enabler support"
-	depends on SOLUTION_ENGINE
-	---help---
-	  Compact Flash is a small, removable mass storage device introduced
-	  in 1994 originally as a PCMCIA device.  If you say `Y' here, you
-	  compile in support for Compact Flash devices directly connected to
-	  a SuperH processor.  A Compact Flash FAQ is available at
-	  <http://www.compactflash.org/faqs/faq.htm>.
-
-	  If your board has "Directly Connected" CompactFlash at area 5 or 6,
-	  you may want to enable this option.  Then, you can use CF as
-	  primary IDE drive (only tested for SanDisk).
-
-	  If in doubt, select 'N'.
-
-choice
-	prompt "Compact Flash Connection Area"
-	depends on CF_ENABLER
-	default CF_AREA6
-
-config CF_AREA5
-	bool "Area5"
-	help
-	  If your board has "Directly Connected" CompactFlash, You should
-	  select the area where your CF is connected to.
-
-	  - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
-	  - "Area6" if it is connected to Area 6 (0x18000000)
-
-	  "Area6" will work for most boards.
-
-config CF_AREA6
-	bool "Area6"
-
-endchoice
-
-config CF_BASE_ADDR
-	hex
-	depends on CF_ENABLER
-	default "0xb8000000" if CF_AREA6
-	default "0xb4000000" if CF_AREA5
-
 source "arch/sh/drivers/pci/Kconfig"
 
 source "drivers/pci/Kconfig"

arch/sh/boards/mach-se/770x/setup.c

@@ -8,8 +8,9 @@
  */
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <asm/machvec.h>
 #include <mach-se/mach/se.h>
+#include <mach-se/mach/mrshpc.h>
+#include <asm/machvec.h>
 #include <asm/io.h>
 #include <asm/smc37c93x.h>
 #include <asm/heartbeat.h>
@@ -175,6 +176,7 @@ static struct platform_device *se_devices[] __initdata = {
 
 static int __init se_devices_setup(void)
 {
+	mrshpc_setup_windows();
 	return platform_add_devices(se_devices, ARRAY_SIZE(se_devices));
 }
 device_initcall(se_devices_setup);

arch/sh/boards/mach-se/7721/setup.c

@@ -12,8 +12,9 @@
  */
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <asm/machvec.h>
 #include <mach-se/mach/se7721.h>
+#include <mach-se/mach/mrshpc.h>
+#include <asm/machvec.h>
 #include <asm/io.h>
 #include <asm/heartbeat.h>
 
@@ -74,8 +75,8 @@ static struct platform_device *se7721_devices[] __initdata = {
 
 static int __init se7721_devices_setup(void)
 {
-	return platform_add_devices(se7721_devices,
-		ARRAY_SIZE(se7721_devices));
+	mrshpc_setup_windows();
+	return platform_add_devices(se7721_devices, ARRAY_SIZE(se7721_devices));
 }
 device_initcall(se7721_devices_setup);
 

arch/sh/boards/mach-se/7722/setup.c

@@ -15,9 +15,10 @@
 #include <linux/ata_platform.h>
 #include <linux/input.h>
 #include <linux/smc91x.h>
+#include <mach-se/mach/se7722.h>
+#include <mach-se/mach/mrshpc.h>
 #include <asm/machvec.h>
 #include <asm/clock.h>
-#include <mach-se/mach/se7722.h>
 #include <asm/io.h>
 #include <asm/heartbeat.h>
 #include <asm/sh_keysc.h>
@@ -147,8 +148,8 @@ static struct platform_device *se7722_devices[] __initdata = {
 
 static int __init se7722_devices_setup(void)
 {
-	return platform_add_devices(se7722_devices,
-		ARRAY_SIZE(se7722_devices));
+	mrshpc_setup_windows();
+	return platform_add_devices(se7722_devices, ARRAY_SIZE(se7722_devices));
 }
 device_initcall(se7722_devices_setup);
 

arch/sh/include/mach-se/mach/mrshpc.h

@@ -0,0 +1,52 @@
+#ifndef __MACH_SE_MRSHPC_H
+#define __MACH_SE_MRSHPC_H
+
+#include <linux/io.h>
+
+static void __init mrshpc_setup_windows(void)
+{
+	if ((__raw_readw(MRSHPC_CSR) & 0x000c) != 0)
+		return;	/* Not detected */
+
+	if ((__raw_readw(MRSHPC_CSR) & 0x0080) == 0) {
+		__raw_writew(0x0674, MRSHPC_CPWCR); /* Card Vcc is 3.3v? */
+	} else {
+		__raw_writew(0x0678, MRSHPC_CPWCR); /* Card Vcc is 5V */
+	}
+
+	/*
+	 *  PC-Card window open
+	 *  flag == COMMON/ATTRIBUTE/IO
+	 */
+	/* common window open */
+	__raw_writew(0x8a84, MRSHPC_MW0CR1);
+	if((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
+		/* common mode & bus width 16bit SWAP = 1*/
+		__raw_writew(0x0b00, MRSHPC_MW0CR2);
+	else
+		/* common mode & bus width 16bit SWAP = 0*/
+		__raw_writew(0x0300, MRSHPC_MW0CR2);
+
+	/* attribute window open */
+	__raw_writew(0x8a85, MRSHPC_MW1CR1);
+	if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
+		/* attribute mode & bus width 16bit SWAP = 1*/
+		__raw_writew(0x0a00, MRSHPC_MW1CR2);
+	else
+		/* attribute mode & bus width 16bit SWAP = 0*/
+		__raw_writew(0x0200, MRSHPC_MW1CR2);
+
+	/* I/O window open */
+	__raw_writew(0x8a86, MRSHPC_IOWCR1);
+	__raw_writew(0x0008, MRSHPC_CDCR);	 /* I/O card mode */
+	if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
+		__raw_writew(0x0a00, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1*/
+	else
+		__raw_writew(0x0200, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0*/
+
+	__raw_writew(0x2000, MRSHPC_ICR);
+	__raw_writeb(0x00, PA_MRSHPC_MW2 + 0x206);
+	__raw_writeb(0x42, PA_MRSHPC_MW2 + 0x200);
+}
+
+#endif /* __MACH_SE_MRSHPC_H */

arch/sh/kernel/Makefile_32

@@ -17,7 +17,6 @@ obj-y	:= debugtraps.o disassemble.o idle.o io.o io_generic.o irq.o	\
 obj-y				+= cpu/ timers/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
 obj-$(CONFIG_SMP)		+= smp.o
-obj-$(CONFIG_CF_ENABLER)	+= cf-enabler.o
 obj-$(CONFIG_SH_STANDARD_BIOS)	+= sh_bios.o
 obj-$(CONFIG_KGDB)		+= kgdb.o
 obj-$(CONFIG_SH_CPU_FREQ)	+= cpufreq.o

arch/sh/kernel/Makefile_64

@@ -7,7 +7,6 @@ obj-y	:= debugtraps.o idle.o io.o io_generic.o irq.o machvec.o process_64.o \
 obj-y				+= cpu/ timers/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
 obj-$(CONFIG_SMP)		+= smp.o
-obj-$(CONFIG_CF_ENABLER)	+= cf-enabler.o
 obj-$(CONFIG_SH_STANDARD_BIOS)	+= sh_bios.o
 obj-$(CONFIG_SH_CPU_FREQ)	+= cpufreq.o
 obj-$(CONFIG_MODULES)		+= sh_ksyms_64.o module.o