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>

1 files changed, 52 insertions, 0 deletions

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 */