[U-Boot-Users] [PATCH 3/9] ppc4xx: program_tlb now uses 64bit physical addess

Stefan Roese
2008-03-11T10:06:06Z

This patch changes the physical addess parameter from 32bit to 64bit.
This is needed for 36bit 4xx platforms to access areas located
beyond the 4GB border, like SoC peripherals (EBC etc.).

Signed-off-by: Stefan Roese <sr@denx.de>
---
board/netstal/hcu5/sdram.c | 2 --
cpu/ppc4xx/tlb.c | 27 ++++++++++++++-------------
include/asm-ppc/mmu.h | 18 +++++++++---------
post/cpu/ppc4xx/cache.c | 2 --
4 files changed, 23 insertions(+), 26 deletions(-)

diff --git a/board/netstal/hcu5/sdram.c b/board/netstal/hcu5/sdram.c
index d3c2233..0b16b50 100644
--- a/board/netstal/hcu5/sdram.c
+++ b/board/netstal/hcu5/sdram.c
@@ -70,8 +70,6 @@ void dflush(void);
#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE
/* disable caching on DDR2 */

-void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
-
void board_add_ram_info(int use_default)
{
PPC4xx_SYS_INFO board_cfg;
diff --git a/cpu/ppc4xx/tlb.c b/cpu/ppc4xx/tlb.c
index ed493f1..2bfcba1 100644
--- a/cpu/ppc4xx/tlb.c
+++ b/cpu/ppc4xx/tlb.c
@@ -31,9 +31,9 @@
#include <asm/mmu.h>

typedef struct region {
- unsigned long base;
- unsigned long size;
- unsigned long tlb_word2_i_value;
+ u64 base;
+ u32 size;
+ u32 tlb_word2_i_value;
} region_t;

void remove_tlb(u32 vaddr, u32 size)
@@ -182,10 +182,10 @@ void change_tlb(u32 vaddr, u32 size, u32 tlb_word2_i_value)
asm("isync");
}

-static int add_tlb_entry(unsigned long phys_addr,
- unsigned long virt_addr,
- unsigned long tlb_word0_size_value,
- unsigned long tlb_word2_i_value)
+static int add_tlb_entry(u64 phys_addr,
+ u32 virt_addr,
+ u32 tlb_word0_size_value,
+ u32 tlb_word2_i_value)
{
int i;
unsigned long tlb_word0_value;
@@ -204,7 +204,8 @@ static int add_tlb_entry(unsigned long phys_addr,
/* Second, create the TLB entry */
tlb_word0_value = TLB_WORD0_EPN_ENCODE(virt_addr) | TLB_WORD0_V_ENABLE |
TLB_WORD0_TS_0 | tlb_word0_size_value;
- tlb_word1_value = TLB_WORD1_RPN_ENCODE(phys_addr) | TLB_WORD1_ERPN_ENCODE(0);
+ tlb_word1_value = TLB_WORD1_RPN_ENCODE((u32)phys_addr) |
+ TLB_WORD1_ERPN_ENCODE(phys_addr >> 32);
tlb_word2_value = TLB_WORD2_U0_DISABLE | TLB_WORD2_U1_DISABLE |
TLB_WORD2_U2_DISABLE | TLB_WORD2_U3_DISABLE |
TLB_WORD2_W_DISABLE | tlb_word2_i_value |
@@ -228,10 +229,10 @@ static int add_tlb_entry(unsigned long phys_addr,
return 0;
}

-static void program_tlb_addr(unsigned long phys_addr,
- unsigned long virt_addr,
- unsigned long mem_size,
- unsigned long tlb_word2_i_value)
+static void program_tlb_addr(u64 phys_addr,
+ u32 virt_addr,
+ u32 mem_size,
+ u32 tlb_word2_i_value)
{
int rc;
int tlb_i;
@@ -331,7 +332,7 @@ static void program_tlb_addr(unsigned long phys_addr,
* Common usage for boards with SDRAM DIMM modules to dynamically
* configure the TLB's for the SDRAM
*/
-void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value)
+void program_tlb(u64 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value)
{
region_t region_array;

diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h
index 5af22af..49d6860 100644
--- a/include/asm-ppc/mmu.h
+++ b/include/asm-ppc/mmu.h
@@ -549,14 +549,14 @@ extern int num_tlb_entries;
/*----------------------------------------------------------------------------+
| TLB specific defines.
+----------------------------------------------------------------------------*/
-#define TLB_256MB_ALIGN_MASK 0xF0000000
-#define TLB_16MB_ALIGN_MASK 0xFF000000
-#define TLB_1MB_ALIGN_MASK 0xFFF00000
-#define TLB_256KB_ALIGN_MASK 0xFFFC0000
-#define TLB_64KB_ALIGN_MASK 0xFFFF0000
-#define TLB_16KB_ALIGN_MASK 0xFFFFC000
-#define TLB_4KB_ALIGN_MASK 0xFFFFF000
-#define TLB_1KB_ALIGN_MASK 0xFFFFFC00
+#define TLB_256MB_ALIGN_MASK 0xFF0000000ULL
+#define TLB_16MB_ALIGN_MASK 0xFFF000000ULL
+#define TLB_1MB_ALIGN_MASK 0xFFFF00000ULL
+#define TLB_256KB_ALIGN_MASK 0xFFFFC0000ULL
+#define TLB_64KB_ALIGN_MASK 0xFFFFF0000ULL
+#define TLB_16KB_ALIGN_MASK 0xFFFFFC000ULL
+#define TLB_4KB_ALIGN_MASK 0xFFFFFF000ULL
+#define TLB_1KB_ALIGN_MASK 0xFFFFFFC00ULL
#define TLB_256MB_SIZE 0x10000000
#define TLB_16MB_SIZE 0x01000000
#define TLB_1MB_SIZE 0x00100000
@@ -697,7 +697,7 @@ unsigned long mftlb1(unsigned long index);
unsigned long mftlb2(unsigned long index);
unsigned long mftlb3(unsigned long index);

-void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
+void program_tlb(u64 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
void remove_tlb(u32 vaddr, u32 size);
void change_tlb(u32 vaddr, u32 size, u32 tlb_word2_i_value);
#endif /* __ASSEMBLY__ */
diff --git a/post/cpu/ppc4xx/cache.c b/post/cpu/ppc4xx/cache.c
index c86a150..466ca92 100644
--- a/post/cpu/ppc4xx/cache.c
+++ b/post/cpu/ppc4xx/cache.c
@@ -42,8 +42,6 @@

#define CACHE_POST_SIZE 1024

-void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
-
int cache_post_test1 (int tlb, void *p, int size);
int cache_post_test2 (int tlb, void *p, int size);
int cache_post_test3 (int tlb, void *p, int size);
--
1.5.4.4