From 4e354b54991fd7d589c8e5753eea58a1afcae30a Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Thu, 24 Apr 2008 05:44:32 +0800 Subject: [PATCH] [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 Signed-off-by: Bryan Wu --- arch/blackfin/kernel/cplb-mpu/cplbinfo.c | 8 -------- arch/blackfin/kernel/cplb-mpu/cplbmgr.c | 6 +++++- 2 files changed, 5 insertions(+), 9 deletions(-) diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinfo.c b/arch/blackfin/kernel/cplb-mpu/cplbinfo.c index bd07229..822beef 100644 --- a/arch/blackfin/kernel/cplb-mpu/cplbinfo.c +++ b/arch/blackfin/kernel/cplb-mpu/cplbinfo.c @@ -39,14 +39,6 @@ #include #include -#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) diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c index 3377cbf..3b165bb 100644 --- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c +++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c @@ -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++; -- 2.7.4