[PATCH] v850: Update PCI support

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

Signed-off-by: Miles Bader <miles@gnu.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/v850/kernel/rte_mb_a_pci.c b/arch/v850/kernel/rte_mb_a_pci.c
index 074b50abc89d9237644be9bf2178cbcff7be1ad6..ffbb6d073bf2b39e9f24814662d6a6129a132171 100644 (file)
--- a/arch/v850/kernel/rte_mb_a_pci.c
+++ b/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 <miles@gnu.org>
+ *  Copyright (C) 2001,02,03,05  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03,05  Miles Bader <miles@gnu.org>
  *
  * 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 ();
 }
@@ -786,6 +788,27 @@ pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr,
 }
 
 \f
+/* 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 */
+}
+
+\f
 /* symbol exports (for modules) */
 
 EXPORT_SYMBOL (pci_map_single);
@@ -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);

diff --git a/arch/v850/kernel/vmlinux.lds.S b/arch/v850/kernel/vmlinux.lds.S
index c366a8b326ee4ab2bedc6f3ebf0b9ca3c1701e0d..5be05f47109e478fa608f4cf2a41eadccd84b677 100644 (file)
--- a/arch/v850/kernel/vmlinux.lds.S
+++ b/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)                                          \

diff --git a/include/asm-v850/pci.h b/include/asm-v850/pci.h
index 8e79be0fe99d89b342f303d23b9b81a17223c293..4581826e1cac9dcf170edba22a36d8d143ead3e8 100644 (file)
--- a/include/asm-v850/pci.h
+++ b/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 <miles@gnu.org>
+ *  Copyright (C) 2001,02,05  NEC Corporation
+ *  Copyright (C) 2001,02,05  Miles Bader <miles@gnu.org>
  *
  * 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)
 {
 }