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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>
This commit is contained in:
Ilya Yanok 2008-09-01 17:53:22 +10:00 committed by Josh Boyer
parent 38d56f1677
commit cc2e113b4b
1 changed files with 6 additions and 7 deletions
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13
arch/powerpc/sysdev/ppc4xx_pci.c
View File

@ -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);