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>

8 files changed, 63 insertions, 220 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 57fd4983cc1d..03c773b74bd2 100644
--- a/arch/sh/Kconfig
+++ b/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"
diff --git a/arch/sh/boards/mach-se/770x/setup.c b/arch/sh/boards/mach-se/770x/setup.c
index 9123d9687bf7..527eb6b12610 100644
--- a/arch/sh/boards/mach-se/770x/setup.c
+++ b/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);
diff --git a/arch/sh/boards/mach-se/7721/setup.c b/arch/sh/boards/mach-se/7721/setup.c
index d3fc80ff4d83..55af4c36b43a 100644
--- a/arch/sh/boards/mach-se/7721/setup.c
+++ b/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);
 
diff --git a/arch/sh/boards/mach-se/7722/setup.c b/arch/sh/boards/mach-se/7722/setup.c
index 02035bbf2cc2..af84904ed86f 100644
--- a/arch/sh/boards/mach-se/7722/setup.c
+++ b/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);
 
diff --git a/arch/sh/include/mach-se/mach/mrshpc.h b/arch/sh/include/mach-se/mach/mrshpc.h
new file mode 100644
index 000000000000..95c8b8254015
--- /dev/null
+++ b/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 */
diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
index df25304ad780..3c975ab45590 100644
--- a/arch/sh/kernel/Makefile_32
+++ b/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
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
index 678408cc35ca..fe425d7f6871 100644
--- a/arch/sh/kernel/Makefile_64
+++ b/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
diff --git a/arch/sh/kernel/cf-enabler.c b/arch/sh/kernel/cf-enabler.c
deleted file mode 100644
index bea40339919b..000000000000
--- a/arch/sh/kernel/cf-enabler.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/* $Id: cf-enabler.c,v 1.4 2004/02/22 22:44:36 kkojima Exp $
- *
- *  linux/drivers/block/cf-enabler.c
- *
- *  Copyright (C) 1999  Niibe Yutaka
- *  Copyright (C) 2000  Toshiharu Nozawa
- *  Copyright (C) 2001  A&D Co., Ltd.
- *
- *  Enable the CF configuration.
- */
-
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-#include <linux/interrupt.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-/*
- * You can connect Compact Flash directly to the bus of SuperH.
- * This is the enabler for that.
- *
- * SIM: How generic is this really? It looks pretty board, or at
- * least SH sub-type, specific to me.
- * I know it doesn't work on the Overdrive!
- */
-
-/*
- * 0xB8000000 : Attribute
- * 0xB8001000 : Common Memory
- * 0xBA000000 : I/O
- */
-#if defined(CONFIG_CPU_SH4)
-/* SH4 can't access PCMCIA interface through P2 area.
- * we must remap it with appropriate attribute bit of the page set.
- * this part is based on Greg Banks' hd64465_ss.c implementation - Masahiro Abe */
-
-#if defined(CONFIG_CF_AREA6)
-#define slot_no 0
-#else
-#define slot_no 1
-#endif
-
-/* use this pointer to access to directly connected compact flash io area*/
-void *cf_io_base;
-
-static int __init allocate_cf_area(void)
-{
-        pgprot_t prot;
-        unsigned long paddrbase, psize;
-
-        /* open I/O area window */
-        paddrbase = virt_to_phys((void*)CONFIG_CF_BASE_ADDR);
-        psize = PAGE_SIZE;
-        prot = PAGE_KERNEL_PCC(slot_no, _PAGE_PCC_IO16);
-        cf_io_base = p3_ioremap(paddrbase, psize, prot.pgprot);
-        if (!cf_io_base) {
-                printk("allocate_cf_area : can't open CF I/O window!\n");
-                return -ENOMEM;
-        }
-/*      printk("p3_ioremap(paddr=0x%08lx, psize=0x%08lx, prot=0x%08lx)=0x%08lx\n",
-                paddrbase, psize, prot.pgprot, cf_io_base);*/
-
-        /* XXX : do we need attribute and common-memory area also? */
-
-        return 0;
-}
-#endif
-
-static int __init cf_init_default(void)
-{
-/* You must have enabled the card, and set the level interrupt
- * before reaching this point. Possibly in boot ROM or boot loader.
- */
-#if defined(CONFIG_CPU_SH4)
-        allocate_cf_area();
-#endif
-
-        return 0;
-}
-
-#if defined(CONFIG_SH_SOLUTION_ENGINE)
-#include <mach-se/mach/se.h>
-#elif defined(CONFIG_SH_7722_SOLUTION_ENGINE)
-#include <mach-se/mach/se7722.h>
-#elif defined(CONFIG_SH_7721_SOLUTION_ENGINE)
-#include <mach-se/mach/se7721.h>
-#endif
-
-/*
- * SolutionEngine Seriese
- *
- * about MS770xSE
- * 0xB8400000 : Common Memory
- * 0xB8500000 : Attribute
- * 0xB8600000 : I/O
- *
- * about MS7722SE
- * 0xB0400000 : Common Memory
- * 0xB0500000 : Attribute
- * 0xB0600000 : I/O
- */
-
-#if defined(CONFIG_SH_SOLUTION_ENGINE) || \
-    defined(CONFIG_SH_7722_SOLUTION_ENGINE) || \
-    defined(CONFIG_SH_7721_SOLUTION_ENGINE)
-static int __init cf_init_se(void)
-{
-        if ((ctrl_inw(MRSHPC_CSR) & 0x000c) != 0)
-                return 0;       /* Not detected */
-
-        if ((ctrl_inw(MRSHPC_CSR) & 0x0080) == 0) {
-                ctrl_outw(0x0674, MRSHPC_CPWCR); /* Card Vcc is 3.3v? */
-        } else {
-                ctrl_outw(0x0678, MRSHPC_CPWCR); /* Card Vcc is 5V */
-        }
-
-        /*
-         *  PC-Card window open
-         *  flag == COMMON/ATTRIBUTE/IO
-         */
-        /* common window open */
-        ctrl_outw(0x8a84, MRSHPC_MW0CR1);
-        if((ctrl_inw(MRSHPC_CSR) & 0x4000) != 0)
-                /* common mode & bus width 16bit SWAP = 1*/
-                ctrl_outw(0x0b00, MRSHPC_MW0CR2);
-        else
-                /* common mode & bus width 16bit SWAP = 0*/
-                ctrl_outw(0x0300, MRSHPC_MW0CR2);
-
-        /* attribute window open */
-        ctrl_outw(0x8a85, MRSHPC_MW1CR1);
-        if ((ctrl_inw(MRSHPC_CSR) & 0x4000) != 0)
-                /* attribute mode & bus width 16bit SWAP = 1*/
-                ctrl_outw(0x0a00, MRSHPC_MW1CR2);
-        else
-                /* attribute mode & bus width 16bit SWAP = 0*/
-                ctrl_outw(0x0200, MRSHPC_MW1CR2);
-
-        /* I/O window open */
-        ctrl_outw(0x8a86, MRSHPC_IOWCR1);
-        ctrl_outw(0x0008, MRSHPC_CDCR);  /* I/O card mode */
-        if ((ctrl_inw(MRSHPC_CSR) & 0x4000) != 0)
-                ctrl_outw(0x0a00, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1*/
-        else
-                ctrl_outw(0x0200, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0*/
-
-        ctrl_outw(0x2000, MRSHPC_ICR);
-        ctrl_outb(0x00, PA_MRSHPC_MW2 + 0x206);
-        ctrl_outb(0x42, PA_MRSHPC_MW2 + 0x200);
-        return 0;
-}
-#else
-static int __init cf_init_se(void)
-{
-        return -1;
-}
-#endif
-
-static int __init cf_init(void)
-{
-        if (mach_is_se() || mach_is_7722se() || mach_is_7721se())
-                return cf_init_se();
-
-        return cf_init_default();
-}
-
-__initcall (cf_init);