sh: pci: Start unifying the SH7780 PCIC initialization.

This starts moving out the common initialization bits from the various
fixup paths in to the shared init path.

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

arch/sh/drivers/pci/fixups-r7780rp.c

@@ -22,33 +22,15 @@ int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
 {
 	return irq_tab[slot];
 }
+
 int pci_fixup_pcic(struct pci_channel *chan)
 {
 	pci_write_reg(chan, 0x000043ff, SH4_PCIINTM);
-	pci_write_reg(chan, 0x0000380f, SH4_PCIAINTM);
-
-	pci_write_reg(chan, 0xfbb00047, SH7780_PCICMD);
 	pci_write_reg(chan, 0x00000000, SH7780_PCIIBAR);
-
-	pci_write_reg(chan, 0x00011912, SH7780_PCISVID);
 	pci_write_reg(chan, 0x08000000, SH7780_PCICSCR0);
 	pci_write_reg(chan, 0x0000001b, SH7780_PCICSAR0);
 	pci_write_reg(chan, 0xfd000000, SH7780_PCICSCR1);
 	pci_write_reg(chan, 0x0000000f, SH7780_PCICSAR1);
 
-	pci_write_reg(chan, 0xfd000000, SH7780_PCIMBR0);
-	pci_write_reg(chan, 0x00fc0000, SH7780_PCIMBMR0);
-
-#ifdef CONFIG_32BIT
-	pci_write_reg(chan, 0xc0000000, SH7780_PCIMBR2);
-	pci_write_reg(chan, 0x20000000 - SH7780_PCI_IO_SIZE, SH7780_PCIMBMR2);
-#endif
-
-	/* Set IOBR for windows containing area specified in pci.h */
-	pci_write_reg(chan, chan->io_resource->start & ~(SH7780_PCI_IO_SIZE-1),
-		      SH7780_PCIIOBR);
-	pci_write_reg(chan, ((SH7780_PCI_IO_SIZE-1) & (7<<18)),
-		      SH7780_PCIIOBMR);
-
 	return 0;
 }

arch/sh/drivers/pci/fixups-sdk7780.c

@@ -35,40 +35,18 @@ int pci_fixup_pcic(struct pci_channel *chan)
 {
 	/* Enable all interrupts, so we know what to fix */
 	pci_write_reg(chan, 0x0000C3FF, SH7780_PCIIMR);
-	pci_write_reg(chan, 0x0000380F, SH7780_PCIAINTM);
 
 	/* Set up standard PCI config registers */
-	pci_write_reg(chan, 0xFB00, SH7780_PCISTATUS);
-	pci_write_reg(chan, 0x0047, SH7780_PCICMD);
-	pci_write_reg(chan, 0x00, SH7780_PCIPIF);
-	pci_write_reg(chan, 0x1912, SH7780_PCISVID);
-	pci_write_reg(chan, 0x0001, SH7780_PCISID);
-
 	pci_write_reg(chan, 0x08000000, SH7780_PCIMBAR0);	/* PCI */
-	pci_write_reg(chan, 0x08000000, SH7780_PCILAR0);	/* SHwy */
-	pci_write_reg(chan, 0x07F00001, SH7780_PCILSR);	/* size 128M w/ MBAR */
+	pci_write_reg(chan, 0x08000000, SH4_PCILAR0);	/* SHwy */
+	pci_write_reg(chan, 0x07F00001, SH4_PCILSR0);	/* size 128M w/ MBAR */
 
 	pci_write_reg(chan, 0x00000000, SH7780_PCIMBAR1);
-	pci_write_reg(chan, 0x00000000, SH7780_PCILAR1);
-	pci_write_reg(chan, 0x00000000, SH7780_PCILSR1);
+	pci_write_reg(chan, 0x00000000, SH4_PCILAR1);
+	pci_write_reg(chan, 0x00000000, SH4_PCILSR1);
 
 	pci_write_reg(chan, 0xAB000801, SH7780_PCIIBAR);
-
-	/*
-	 * Set the MBR so PCI address is one-to-one with window,
-	 * meaning all calls go straight through... use ifdef to
-	 * catch erroneous assumption.
-	 */
-	pci_write_reg(chan, 0xFD000000 , SH7780_PCIMBR0);
-	pci_write_reg(chan, 0x00FC0000 , SH7780_PCIMBMR0);	/* 16M */
-
-	/* Set IOBR for window containing area specified in pci.h */
-	pci_write_reg(chan, chan->io_resource->start & ~(SH7780_PCI_IO_SIZE-1),
-		      SH7780_PCIIOBR);
-	pci_write_reg(chan, (SH7780_PCI_IO_SIZE-1) & (7 << 18),
-		      SH7780_PCIIOBMR);
-
-	pci_write_reg(chan, 0xA5000C01, SH7780_PCICR);
+	pci_write_reg(chan, 0xA5000C01, SH4_PCICR);
 
 	return 0;
 }

arch/sh/drivers/pci/pci-sh7780.c

@@ -1,19 +1,12 @@
 /*
- *	Low-Level PCI Support for the SH7780
+ * Low-Level PCI Support for the SH7780
  *
- *  Dustin McIntire (dustin@sensoria.com)
- *	Derived from arch/i386/kernel/pci-*.c which bore the message:
- *	(c) 1999--2000 Martin Mares <mj@ucw.cz>
- *
- *  Ported to the new API by Paul Mundt <lethal@linux-sh.org>
- *  With cleanup by Paul van Gool <pvangool@mimotech.com>
- *
- *  May be copied or modified under the terms of the GNU General Public
- *  License.  See linux/COPYING for more information.
+ *  Copyright (C) 2005 - 2009  Paul Mundt
  *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-#undef DEBUG
-
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -117,13 +110,8 @@ int __init pcibios_init_platform(void)
 
 	pci_cache_line_size = pci_read_reg(chan, SH7780_PCICLS) / 4;
 
-	/* set the command/status bits to:
-	 * Wait Cycle Control + Parity Enable + Bus Master +
-	 * Mem space enable
-	 */
-	pci_write_reg(chan, 0x00000046, SH7780_PCICMD);
-
-	/* Set IO and Mem windows to local address
+	/*
+	 * Set IO and Mem windows to local address
 	 * Make PCI and local address the same for easy 1 to 1 mapping
 	 */
 	pci_write_reg(chan, sh7780_pci_map.window0.size - 0xfffff, SH4_PCILSR0);
@@ -131,9 +119,33 @@ int __init pcibios_init_platform(void)
 	pci_write_reg(chan, sh7780_pci_map.window0.base, SH4_PCILAR0);
 	pci_write_reg(chan, sh7780_pci_map.window0.base, SH7780_PCIMBAR0);
 
+	pci_write_reg(chan, 0x0000380f, SH4_PCIAINTM);
+
+	/* Set up standard PCI config registers */
+	__raw_writew(0xFB00, chan->reg_base + SH7780_PCISTATUS);
+	__raw_writew(0x0047, chan->reg_base + SH7780_PCICMD);
+	__raw_writew(0x1912, chan->reg_base + SH7780_PCISVID);
+	__raw_writew(0x0001, chan->reg_base + SH7780_PCISID);
+
+	__raw_writeb(0x00, chan->reg_base + SH7780_PCIPIF);
+
 	/* Apply any last-minute PCIC fixups */
 	pci_fixup_pcic(chan);
 
+	pci_write_reg(chan, 0xfd000000, SH7780_PCIMBR0);
+	pci_write_reg(chan, 0x00fc0000, SH7780_PCIMBMR0);
+
+#ifdef CONFIG_32BIT
+	pci_write_reg(chan, 0xc0000000, SH7780_PCIMBR2);
+	pci_write_reg(chan, 0x20000000 - SH7780_PCI_IO_SIZE, SH7780_PCIMBMR2);
+#endif
+
+	/* Set IOBR for windows containing area specified in pci.h */
+	pci_write_reg(chan, chan->io_resource->start & ~(SH7780_PCI_IO_SIZE-1),
+		      SH7780_PCIIOBR);
+	pci_write_reg(chan, ((SH7780_PCI_IO_SIZE-1) & (7<<18)),
+		      SH7780_PCIIOBMR);
+
 	/* SH7780 init done, set central function init complete */
 	/* use round robin mode to stop a device starving/overruning */
 	word = SH4_PCICR_PREFIX | SH4_PCICR_CFIN | SH4_PCICR_FTO;

arch/sh/drivers/pci/pci-sh7780.h

@@ -65,11 +65,6 @@
 #define SH7780_PCIPMCSR_BSE	0x046
 #define SH7780_PCICDD		0x047
 
-#define SH7780_PCICR		0x100		/* PCI Control Register */
-#define SH7780_PCILSR		0x104		/* PCI Local Space Register0 */
-#define SH7780_PCILSR1		0x108		/* PCI Local Space Register1 */
-#define SH7780_PCILAR0		0x10C		/* PCI Local Address Register1 */
-#define SH7780_PCILAR1		0x110		/* PCI Local Address Register1 */
 #define SH7780_PCIIR		0x114		/* PCI Interrupt Register */
 #define SH7780_PCIIMR		0x118		/* PCI Interrupt Mask Register */
 #define SH7780_PCIAIR		0x11C		/* Error Address Register */