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[Blackfin] arch: cplb-mpu code clean up 

- allow bootrom to be readable from supervisor mode
 - delete unused local variable "addr"
 - punt unused local defines of cplbinfo.c

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger 2008-04-24 05:44:32 +08:00 committed by Bryan Wu
parent 7795566495
commit 4e354b5499
2 changed files with 5 additions and 9 deletions
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8
arch/blackfin/kernel/cplb-mpu/cplbinfo.c
View File

@ -39,14 +39,6 @@
#include <asm/cplbinit.h>
#include <asm/blackfin.h>
#define CPLB_I 1
#define CPLB_D 2
#define SYNC_SYS SSYNC()
#define SYNC_CORE CSYNC()
#define CPLB_BIT_PAGESIZE 0x30000
static char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" };
static char *cplb_print_entry(char *buf, struct cplb_entry *tbl, int switched)

6
arch/blackfin/kernel/cplb-mpu/cplbmgr.c
View File

@ -161,6 +161,11 @@ static noinline int dcplb_miss(void)
addr &= ~0x3fffff;
d_data &= ~PAGE_SIZE_4KB;
d_data |= PAGE_SIZE_4MB;
} else if (addr >= BOOT_ROM_START && addr < BOOT_ROM_START + BOOT_ROM_LENGTH
&& (status & (FAULT_RW | FAULT_USERSUPV)) == FAULT_USERSUPV) {
addr &= ~(1 * 1024 * 1024 - 1);
d_data &= ~PAGE_SIZE_4KB;
d_data |= PAGE_SIZE_1MB | CPLB_USER_RD;
} else
return CPLB_PROT_VIOL;
} else if (addr >= _ramend) {
@ -277,7 +282,6 @@ static noinline int icplb_miss(void)
static noinline int dcplb_protection_fault(void)
{
unsigned long addr = bfin_read_DCPLB_FAULT_ADDR();
int status = bfin_read_DCPLB_STATUS();
nr_dcplb_prot++;