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authorEd Swarthout <Ed.Swarthout@freescale.com>2010-03-31 15:52:40 -0500
committerAnatolij Gustschin <agust@denx.de>2010-04-08 15:30:47 +0200
commitf6a7a2e88854666e6a9ede50891fe415e803ace2 (patch)
treeb22e61e55853364f7b2f818d2120e51708ab6fa8 /drivers/video/ati_radeon_fb.c
parent9624f6d9eb4b7223e97a27844ec4489ab953a2e2 (diff)
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ati_radeon: Support PCI virtual not eq bus mapping.
Use pci_bus_to_virt() to convert the bus address from the BARs to virtual address' to eliminate the direct mapping requirement. Rename variables to better match usage (_phys -> _bus or no-suffix) This fixes the mpc8572ds CONFIG_PHYS_64BIT mode failure: "videoboot: Video ROM failed to map!" Tested on mpc8572ds with and without CONFIG_PHYS_64BIT. Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Diffstat (limited to 'drivers/video/ati_radeon_fb.c')
-rw-r--r--drivers/video/ati_radeon_fb.c47
1 files changed, 25 insertions, 22 deletions
diff --git a/drivers/video/ati_radeon_fb.c b/drivers/video/ati_radeon_fb.c
index 529ddae..f797104 100644
--- a/drivers/video/ati_radeon_fb.c
+++ b/drivers/video/ati_radeon_fb.c
@@ -210,7 +210,7 @@ static void radeon_identify_vram(struct radeonfb_info *rinfo)
* ToDo: identify these cases
*/
- DPRINT("radeonfb: Found %ldk of %s %d bits wide videoram\n",
+ DPRINT("radeonfb: Found %dk of %s %d bits wide videoram\n",
rinfo->video_ram / 1024,
rinfo->vram_ddr ? "DDR" : "SDRAM",
rinfo->vram_width);
@@ -586,14 +586,16 @@ int radeon_probe(struct radeonfb_info *rinfo)
rinfo->pdev.device = did;
rinfo->family = get_radeon_id_family(rinfo->pdev.device);
pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0,
- &rinfo->fb_base_phys);
+ &rinfo->fb_base_bus);
pci_read_config_dword(pdev, PCI_BASE_ADDRESS_2,
- &rinfo->mmio_base_phys);
- rinfo->fb_base_phys &= 0xfffff000;
- rinfo->mmio_base_phys &= ~0x04;
-
- rinfo->mmio_base = (void *)rinfo->mmio_base_phys;
- DPRINT("rinfo->mmio_base = 0x%x\n",rinfo->mmio_base);
+ &rinfo->mmio_base_bus);
+ rinfo->fb_base_bus &= 0xfffff000;
+ rinfo->mmio_base_bus &= ~0x04;
+
+ rinfo->mmio_base = pci_bus_to_virt(pdev, rinfo->mmio_base_bus,
+ PCI_REGION_MEM, 0, MAP_NOCACHE);
+ DPRINT("rinfo->mmio_base = 0x%x bus=0x%x\n",
+ rinfo->mmio_base, rinfo->mmio_base_bus);
rinfo->fb_local_base = INREG(MC_FB_LOCATION) << 16;
DPRINT("rinfo->fb_local_base = 0x%x\n",rinfo->fb_local_base);
/* PostBIOS with x86 emulater */
@@ -611,14 +613,15 @@ int radeon_probe(struct radeonfb_info *rinfo)
rinfo->mapped_vram = min_t(unsigned long, MAX_MAPPED_VRAM,
rinfo->video_ram);
- rinfo->fb_base = (void *)rinfo->fb_base_phys;
-
- DPRINT("Radeon: framebuffer base phy address 0x%08x," \
- "MMIO base phy address 0x%08x," \
- "framebuffer local base 0x%08x.\n ",
- rinfo->fb_base_phys, rinfo->mmio_base_phys,
- rinfo->fb_local_base);
-
+ rinfo->fb_base = pci_bus_to_virt(pdev, rinfo->fb_base_bus,
+ PCI_REGION_MEM, 0, MAP_NOCACHE);
+ DPRINT("Radeon: framebuffer base address 0x%08x, "
+ "bus address 0x%08x\n"
+ "MMIO base address 0x%08x, bus address 0x%08x, "
+ "framebuffer local base 0x%08x.\n ",
+ (u32)rinfo->fb_base, rinfo->fb_base_bus,
+ (u32)rinfo->mmio_base, rinfo->mmio_base_bus,
+ rinfo->fb_local_base);
return 0;
}
return -1;
@@ -734,13 +737,13 @@ void *video_hw_init(void)
}
pGD->isaBase = CONFIG_SYS_ISA_IO_BASE_ADDRESS;
- pGD->pciBase = rinfo->fb_base_phys;
- pGD->frameAdrs = rinfo->fb_base_phys;
+ pGD->pciBase = (unsigned int)rinfo->fb_base;
+ pGD->frameAdrs = (unsigned int)rinfo->fb_base;
pGD->memSize = 64 * 1024 * 1024;
/* Cursor Start Address */
- pGD->dprBase =
- (pGD->winSizeX * pGD->winSizeY * pGD->gdfBytesPP) + rinfo->fb_base_phys;
+ pGD->dprBase = (pGD->winSizeX * pGD->winSizeY * pGD->gdfBytesPP) +
+ (unsigned int)rinfo->fb_base;
if ((pGD->dprBase & 0x0fff) != 0) {
/* allign it */
pGD->dprBase &= 0xfffff000;
@@ -748,8 +751,8 @@ void *video_hw_init(void)
}
DPRINT ("Cursor Start %x Pattern Start %x\n", pGD->dprBase,
PATTERN_ADR);
- pGD->vprBase = rinfo->fb_base_phys; /* Dummy */
- pGD->cprBase = rinfo->fb_base_phys; /* Dummy */
+ pGD->vprBase = (unsigned int)rinfo->fb_base; /* Dummy */
+ pGD->cprBase = (unsigned int)rinfo->fb_base; /* Dummy */
/* set up Hardware */
/* Clear video memory (only visible screen area) */