[PATCH] v850: Update PCI support

These changes are untested (I no longer have the hardware).

Signed-off-by: Miles Bader <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

arch/v850/kernel/rte_mb_a_pci.c

@@ -1,8 +1,8 @@
 /*
  * arch/v850/kernel/mb_a_pci.c -- PCI support for Midas lab RTE-MOTHER-A board
  *
- *  Copyright (C) 2001,02,03  NEC Electronics Corporation
- *  Copyright (C) 2001,02,03  Miles Bader <[email protected]>
+ *  Copyright (C) 2001,02,03,05  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03,05  Miles Bader <[email protected]>
  *
  * 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
@@ -743,15 +743,17 @@ pci_unmap_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len,int dir)
    for a scatter-gather list, same rules and usage.  */
 
 void
-pci_dma_sync_sg_for_cpu (struct pci_dev *dev, struct scatterlist *sg, int sg_len,
-		 int dir)
+pci_dma_sync_sg_for_cpu (struct pci_dev *dev,
+			 struct scatterlist *sg, int sg_len,
+			 int dir)
 {
 	BUG ();
 }
 
 void
-pci_dma_sync_sg_for_device (struct pci_dev *dev, struct scatterlist *sg, int sg_len,
-		 int dir)
+pci_dma_sync_sg_for_device (struct pci_dev *dev,
+			    struct scatterlist *sg, int sg_len,
+			    int dir)
 {
 	BUG ();
 }
@@ -785,6 +787,27 @@ pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr,
 	free_mb_sram (mb_sram_mem, size);
 }
 
+
+/* iomap/iomap */
+
+void __iomem *pci_iomap (struct pci_dev *dev, int bar, unsigned long max)
+{
+	unsigned long start = pci_resource_start (dev, bar);
+	unsigned long len = pci_resource_len (dev, bar);
+
+	if (!start || len == 0)
+		return 0;
+
+	/* None of the ioremap functions actually do anything, other than
+	   re-casting their argument, so don't bother differentiating them.  */
+	return ioremap (start, len);
+}
+
+void pci_iounmap (struct pci_dev *dev, void __iomem *addr)
+{
+	/* nothing */
+}
+
 
 /* symbol exports (for modules) */
 
@@ -794,3 +817,5 @@ EXPORT_SYMBOL (pci_alloc_consistent);
 EXPORT_SYMBOL (pci_free_consistent);
 EXPORT_SYMBOL (pci_dma_sync_single_for_cpu);
 EXPORT_SYMBOL (pci_dma_sync_single_for_device);
+EXPORT_SYMBOL (pci_iomap);
+EXPORT_SYMBOL (pci_iounmap);

arch/v850/kernel/vmlinux.lds.S

@@ -12,6 +12,7 @@
  */
 
 #include <linux/config.h>
+
 #define VMLINUX_SYMBOL(_sym_) _##_sym_
 #include <asm-generic/vmlinux.lds.h>
 
@@ -42,6 +43,19 @@
 			*(.rodata) *(.rodata.*)				      \
 			*(__vermagic)		/* Kernel version magic */    \
 			*(.rodata1)					      \
+		/* PCI quirks */					      \
+		___start_pci_fixups_early = . ;				      \
+			*(.pci_fixup_early)				      \
+		___end_pci_fixups_early = . ;				      \
+		___start_pci_fixups_header = . ;			      \
+			*(.pci_fixup_header)				      \
+		___end_pci_fixups_header = . ;				      \
+		___start_pci_fixups_final = . ;				      \
+			*(.pci_fixup_final)				      \
+		___end_pci_fixups_final = . ;				      \
+		___start_pci_fixups_enable = . ;			      \
+			*(.pci_fixup_enable)				      \
+		___end_pci_fixups_enable = . ;				      \
 		/* Kernel symbol table: Normal symbols */		      \
 		___start___ksymtab = .;					      \
 			*(__ksymtab)					      \

include/asm-v850/pci.h

@@ -1,8 +1,8 @@
 /*
  * include/asm-v850/pci.h -- PCI support
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <[email protected]>
+ *  Copyright (C) 2001,02,05  NEC Corporation
+ *  Copyright (C) 2001,02,05  Miles Bader <[email protected]>
  *
  * 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
@@ -48,12 +48,12 @@ pci_unmap_single (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
    perform a pci_dma_sync_for_device, and then the device again owns
    the buffer.  */
 extern void
-pci_dma_sync_single_for_cpu (struct pci_dev *dev, dma_addr_t dma_addr, size_t size,
-		     int dir);
+pci_dma_sync_single_for_cpu (struct pci_dev *dev, dma_addr_t dma_addr,
+			     size_t size, int dir);
 
 extern void
-pci_dma_sync_single_for_device (struct pci_dev *dev, dma_addr_t dma_addr, size_t size,
-		     int dir);
+pci_dma_sync_single_for_device (struct pci_dev *dev, dma_addr_t dma_addr,
+				size_t size, int dir);
 
 
 /* Do multiple DMA mappings at once.  */
@@ -65,6 +65,28 @@ extern void
 pci_unmap_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len,
 	      int dir);
 
+/* SG-list versions of pci_dma_sync functions.  */
+extern void
+pci_dma_sync_sg_for_cpu (struct pci_dev *dev,
+			 struct scatterlist *sg, int sg_len,
+			 int dir);
+extern void
+pci_dma_sync_sg_for_device (struct pci_dev *dev,
+			    struct scatterlist *sg, int sg_len,
+			    int dir);
+
+#define pci_map_page(dev, page, offs, size, dir) \
+  pci_map_single(dev, (page_address(page) + (offs)), size, dir)
+#define pci_unmap_page(dev,addr,sz,dir) \
+  pci_unmap_single(dev, addr, sz, dir)
+
+/* Test for pci_map_single or pci_map_page having generated an error.  */
+static inline int
+pci_dma_mapping_error (dma_addr_t dma_addr)
+{
+	return dma_addr == 0;
+}
+
 /* Allocate and map kernel buffer using consistent mode DMA for PCI
    device.  Returns non-NULL cpu-view pointer to the buffer if
    successful and sets *DMA_ADDR to the pci side dma address as well,
@@ -91,6 +113,9 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 }
 #endif
 
+extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
+extern void pci_iounmap (struct pci_dev *dev, void __iomem *addr);
+
 static inline void pcibios_add_platform_entries(struct pci_dev *dev)
 {
 }