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blackfin: cplb: add support for bf60x 

Bf60x support big CPLB pages, this commit enable it.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
This commit is contained in:
Bob Liu 2012-05-16 18:03:47 +08:00
parent 4f6b600fdc
commit 7adede5b9b
4 changed files with 16 additions and 2 deletions
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4
arch/blackfin/include/asm/cplb.h
View File

@ -62,6 +62,10 @@
#define SIZE_4K 0x00001000 /* 4K */
#define SIZE_1M 0x00100000 /* 1M */
#define SIZE_4M 0x00400000 /* 4M */
#define SIZE_16K 0x00004000 /* 16K */
#define SIZE_64K 0x00010000 /* 64K */
#define SIZE_16M 0x01000000 /* 16M */
#define SIZE_64M 0x04000000 /* 64M */
#define MAX_CPLBS 16

4
arch/blackfin/include/asm/def_LPBlackfin.h
View File

@ -622,6 +622,10 @@ do { \
#define PAGE_SIZE_4KB 0x00010000 /* 4 KB page size */
#define PAGE_SIZE_1MB 0x00020000 /* 1 MB page size */
#define PAGE_SIZE_4MB 0x00030000 /* 4 MB page size */
#define PAGE_SIZE_16KB 0x00040000 /* 16 KB page size */
#define PAGE_SIZE_64KB 0x00050000 /* 64 KB page size */
#define PAGE_SIZE_16MB 0x00060000 /* 16 MB page size */
#define PAGE_SIZE_64MB 0x00070000 /* 64 MB page size */
#define CPLB_L1SRAM 0x00000020 /* 0=SRAM mapped in L1, 0=SRAM not
* mapped to L1
*/

4
arch/blackfin/kernel/cplb-nompu/cplbinit.c
View File

@ -139,7 +139,7 @@ void __init generate_cplb_tables_all(void)
dcplb_bounds[i_d].eaddr = BOOT_ROM_START;
dcplb_bounds[i_d++].data = 0;
/* BootROM -- largest one should be less than 1 meg. */
dcplb_bounds[i_d].eaddr = BOOT_ROM_START + (1 * 1024 * 1024);
dcplb_bounds[i_d].eaddr = BOOT_ROM_START + BOOT_ROM_LENGTH;
dcplb_bounds[i_d++].data = SDRAM_DGENERIC;
if (L2_LENGTH) {
/* Addressing hole up to L2 SRAM. */
@ -178,7 +178,7 @@ void __init generate_cplb_tables_all(void)
icplb_bounds[i_i].eaddr = BOOT_ROM_START;
icplb_bounds[i_i++].data = 0;
/* BootROM -- largest one should be less than 1 meg. */
icplb_bounds[i_i].eaddr = BOOT_ROM_START + (1 * 1024 * 1024);
icplb_bounds[i_i].eaddr = BOOT_ROM_START + BOOT_ROM_LENGTH;
icplb_bounds[i_i++].data = SDRAM_IGENERIC;
if (L2_LENGTH) {

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

@ -179,6 +179,12 @@ MGR_ATTR static int dcplb_miss(int cpu)
addr = addr1;
}
#ifdef CONFIG_BF60x
if ((addr >= ASYNC_BANK0_BASE)
&& (addr < ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE))
d_data |= PAGE_SIZE_64MB;
#endif
/* Pick entry to evict */
idx = evict_one_dcplb(cpu);