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| author | Ilya Yanok <yanok@emcraft.com> | 2008-09-01 17:53:22 +1000 |
|---|---|---|
| committer | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2008-09-02 08:31:10 -0400 |
| commit | cc2e113b4bbd415d53d8bb87a446cde6b7ce8acc (patch) | |
| tree | f55b955cf25703e604e3104dec04ec7c5ed9c1ea /arch/powerpc/sysdev/ppc4xx_pci.c | |
| parent | 38d56f1677130004497835a776feb84f068ce22a (diff) | |
| download | talos-obmc-linux-cc2e113b4bbd415d53d8bb87a446cde6b7ce8acc.tar.gz talos-obmc-linux-cc2e113b4bbd415d53d8bb87a446cde6b7ce8acc.zip | |
powerpc/4xx: Necessary fixes to PCI for 4GB RAM size
The declaration of total_memory removed. Now including <mm/mmu_decl.h>
instead. Since total_memory is a phys_addr_t which is 64-bit on 44x and
is_power_of_2() works with u32 so I just inlined (size & (size-1)) != 0
instead.
Also this patch fixes default initialization: res->end should be 0x7fffffff
not 0x80000000.
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc/sysdev/ppc4xx_pci.c')
| -rw-r--r-- | arch/powerpc/sysdev/ppc4xx_pci.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c index d5c345dbb89d..5da8a44ea2f6 100644 --- a/arch/powerpc/sysdev/ppc4xx_pci.c +++ b/arch/powerpc/sysdev/ppc4xx_pci.c @@ -30,14 +30,12 @@ #include <asm/machdep.h> #include <asm/dcr.h> #include <asm/dcr-regs.h> +#include <mm/mmu_decl.h> #include "ppc4xx_pci.h" static int dma_offset_set; -/* Move that to a useable header */ -extern unsigned long total_memory; - #define U64_TO_U32_LOW(val) ((u32)((val) & 0x00000000ffffffffULL)) #define U64_TO_U32_HIGH(val) ((u32)((val) >> 32)) @@ -105,7 +103,8 @@ static int __init ppc4xx_parse_dma_ranges(struct pci_controller *hose, /* Default */ res->start = 0; - res->end = size = 0x80000000; + size = 0x80000000; + res->end = size - 1; res->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; /* Get dma-ranges property */ @@ -167,13 +166,13 @@ static int __init ppc4xx_parse_dma_ranges(struct pci_controller *hose, */ if (size < total_memory) { printk(KERN_ERR "%s: dma-ranges too small " - "(size=%llx total_memory=%lx)\n", - hose->dn->full_name, size, total_memory); + "(size=%llx total_memory=%llx)\n", + hose->dn->full_name, size, (u64)total_memory); return -ENXIO; } /* Check we are a power of 2 size and that base is a multiple of size*/ - if (!is_power_of_2(size) || + if ((size & (size - 1)) != 0 || (res->start & (size - 1)) != 0) { printk(KERN_ERR "%s: dma-ranges unaligned\n", hose->dn->full_name); |
