[U-Boot] [PATCH 04/28] powerpc/mpc85xx: Introduce new macros to add and delete TLB entries
York Sun
yorksun at freescale.com
Mon Oct 8 19:44:07 CEST 2012
These assembly macros simplify codes to add and delete temporary TLB entries.
Signed-off-by: York Sun <yorksun at freescale.com>
---
arch/powerpc/cpu/mpc85xx/start.S | 309 ++++++++++++++++----------------------
1 file changed, 130 insertions(+), 179 deletions(-)
diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S
index 9e04257..3fe22bf 100644
--- a/arch/powerpc/cpu/mpc85xx/start.S
+++ b/arch/powerpc/cpu/mpc85xx/start.S
@@ -211,6 +211,77 @@ l2_disabled:
andi. r1,r3,L1CSR0_DCE at l
beq 2b
+ .macro create_tlb1_entry esel ts tsize epn wimg rpn perm phy_high scratch
+ lis \scratch, FSL_BOOKE_MAS0(1, \esel, 0)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS0(1, \esel, 0)@l
+ mtspr MAS0, \scratch
+ lis \scratch, FSL_BOOKE_MAS1(1, 1, 0, \ts, \tsize)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS1(1, 1, 0, \ts, \tsize)@l
+ mtspr MAS1, \scratch
+ lis \scratch, FSL_BOOKE_MAS2(\epn, \wimg)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS2(\epn, \wimg)@l
+ mtspr MAS2, \scratch
+ lis \scratch, FSL_BOOKE_MAS3(\rpn, 0, \perm)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS3(\rpn, 0, \perm)@l
+ mtspr MAS3, \scratch
+ lis \scratch, \phy_high at h
+ ori \scratch, \scratch, \phy_high at l
+ mtspr MAS7, \scratch
+ isync
+ msync
+ tlbwe
+ isync
+ .endm
+
+ .macro create_tlb0_entry esel ts tsize epn wimg rpn perm phy_high scratch
+ lis \scratch, FSL_BOOKE_MAS0(0, \esel, 0)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS0(0, \esel, 0)@l
+ mtspr MAS0, \scratch
+ lis \scratch, FSL_BOOKE_MAS1(1, 0, 0, \ts, \tsize)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS1(1, 0, 0, \ts, \tsize)@l
+ mtspr MAS1, \scratch
+ lis \scratch, FSL_BOOKE_MAS2(\epn, \wimg)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS2(\epn, \wimg)@l
+ mtspr MAS2, \scratch
+ lis \scratch, FSL_BOOKE_MAS3(\rpn, 0, \perm)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS3(\rpn, 0, \perm)@l
+ mtspr MAS3, \scratch
+ lis \scratch, \phy_high at h
+ ori \scratch, \scratch, \phy_high at l
+ mtspr MAS7, \scratch
+ isync
+ msync
+ tlbwe
+ isync
+ .endm
+
+ .macro delete_tlb1_entry esel scratch
+ lis \scratch, FSL_BOOKE_MAS0(1, \esel, 0)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS0(1, \esel, 0)@l
+ mtspr MAS0, \scratch
+ li \scratch, 0
+ mtspr MAS1, \scratch
+ isync
+ msync
+ tlbwe
+ isync
+ .endm
+
+ .macro delete_tlb0_entry esel epn wimg scratch
+ lis \scratch, FSL_BOOKE_MAS0(0, \esel, 0)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS0(0, \esel, 0)@l
+ mtspr MAS0, \scratch
+ li \scratch, 0
+ mtspr MAS1, \scratch
+ lis \scratch, FSL_BOOKE_MAS2(\epn, \wimg)@h
+ ori \scratch, \scratch, FSL_BOOKE_MAS2(\epn, \wimg)@l
+ mtspr MAS2, \scratch
+ isync
+ msync
+ tlbwe
+ isync
+ .endm
+
#if defined(CONFIG_SYS_PPC_E500_DEBUG_TLB) && !defined(CONFIG_NAND_SPL)
/*
* TLB entry for debuggging in AS1
@@ -220,61 +291,35 @@ l2_disabled:
* in AS1.
*/
- lis r6,FSL_BOOKE_MAS0(1,
- CONFIG_SYS_PPC_E500_DEBUG_TLB, 0)@h
- ori r6,r6,FSL_BOOKE_MAS0(1,
- CONFIG_SYS_PPC_E500_DEBUG_TLB, 0)@l
-
#if !defined(CONFIG_SYS_RAMBOOT) && !defined(CONFIG_SECURE_BOOT)
/*
* TLB entry is created for IVPR + IVOR15 to map on valid OP code address
* bacause flash's virtual address maps to 0xff800000 - 0xffffffff.
* and this window is outside of 4K boot window.
*/
- lis r7,FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_4M)@h
- ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_4M)@l
-
- lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE & 0xffc00000,
- (MAS2_I|MAS2_G))@h
- ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE & 0xffc00000,
- (MAS2_I|MAS2_G))@l
+ create_tlb1_entry CONFIG_SYS_PPC_E500_DEBUG_TLB,
+ 0, BOOKE_PAGESZ_4M,
+ CONFIG_SYS_MONITOR_BASE & 0xffc00000, MAS2_I|MAS2_G,
+ 0xffc00000, MAS3_SX|MAS3_SW|MAS3_SR,
+ 0, r6
- /* The 85xx has the default boot window 0xff800000 - 0xffffffff */
- lis r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@h
- ori r9,r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@l
#elif !defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SECURE_BOOT)
- lis r7,FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_1M)@h
- ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_1M)@l
-
- lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE,(MAS2_I|MAS2_G))@h
- ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE,(MAS2_I|MAS2_G))@l
-
- lis r9,FSL_BOOKE_MAS3(CONFIG_SYS_PBI_FLASH_WINDOW, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@h
- ori r9,r9,FSL_BOOKE_MAS3(CONFIG_SYS_PBI_FLASH_WINDOW, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@l
+ create_tlb1_entry CONFIG_SYS_PPC_E500_DEBUG_TLB,
+ 0, BOOKE_PAGESZ_1M,
+ CONFIG_SYS_MONITOR_BASE, MAS2_I|MAS2_G,
+ CONFIG_SYS_PBI_FLASH_WINDOW, MAS3_SX|MAS3_SW|MAS3_SR,
+ 0, r6
#else
/*
* TLB entry is created for IVPR + IVOR15 to map on valid OP code address
* because "nexti" will resize TLB to 4K
*/
- lis r7,FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256K)@h
- ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256K)@l
-
- lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE, (MAS2_I))@h
- ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE,
- (MAS2_I))@l
- lis r9,FSL_BOOKE_MAS3(CONFIG_SYS_MONITOR_BASE, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@h
- ori r9,r9,FSL_BOOKE_MAS3(CONFIG_SYS_MONITOR_BASE, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@l
+ create_tlb1_entry CONFIG_SYS_PPC_E500_DEBUG_TLB,
+ 0, BOOKE_PAGESZ_256K,
+ CONFIG_SYS_MONITOR_BASE, MAS2_I,
+ CONFIG_SYS_MONITOR_BASE, MAS3_SX|MAS3_SW|MAS3_SR,
+ 0, r6
#endif
- mtspr MAS0,r6
- mtspr MAS1,r7
- mtspr MAS2,r8
- mtspr MAS3,r9
- tlbwe
- isync
#endif
/*
@@ -392,27 +437,11 @@ l2_disabled:
*/
/* create a temp mapping TLB0[0] for LBCR */
- lis r6,FSL_BOOKE_MAS0(0, 0, 0)@h
- ori r6,r6,FSL_BOOKE_MAS0(0, 0, 0)@l
-
- lis r7,FSL_BOOKE_MAS1(1, 0, 0, 0, BOOKE_PAGESZ_4K)@h
- ori r7,r7,FSL_BOOKE_MAS1(1, 0, 0, 0, BOOKE_PAGESZ_4K)@l
-
- lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_LBC_ADDR, MAS2_I|MAS2_G)@h
- ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_LBC_ADDR, MAS2_I|MAS2_G)@l
-
- lis r9,FSL_BOOKE_MAS3(CONFIG_SYS_LBC_ADDR, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@h
- ori r9,r9,FSL_BOOKE_MAS3(CONFIG_SYS_LBC_ADDR, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@l
-
- mtspr MAS0,r6
- mtspr MAS1,r7
- mtspr MAS2,r8
- mtspr MAS3,r9
- isync
- msync
- tlbwe
+ create_tlb0_entry 0,
+ 0, BOOKE_PAGESZ_4K,
+ CONFIG_SYS_LBC_ADDR, MAS2_I|MAS2_G,
+ CONFIG_SYS_LBC_ADDR, MAS3_SW|MAS3_SR,
+ 0, r6
/* Set LBCR register */
lis r4,CONFIG_SYS_LBCR_ADDR at h
@@ -551,49 +580,22 @@ create_ccsr_new_tlb:
ori r8, r8, CONFIG_SYS_CCSRBAR at l
lis r9, (CONFIG_SYS_CCSRBAR + 0x1000)@h
ori r9, r9, (CONFIG_SYS_CCSRBAR + 0x1000)@l
- lis r0, FSL_BOOKE_MAS0(0, 0, 0)@h
- ori r0, r0, FSL_BOOKE_MAS0(0, 0, 0)@l
- lis r1, FSL_BOOKE_MAS1(1, 0, 0, 0, BOOKE_PAGESZ_4K)@h
- ori r1, r1, FSL_BOOKE_MAS1(1, 0, 0, 0, BOOKE_PAGESZ_4K)@l
- lis r2, FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, (MAS2_I|MAS2_G))@h
- ori r2, r2, FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, (MAS2_I|MAS2_G))@l
- lis r3, FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_PHYS_LOW, 0, (MAS3_SW|MAS3_SR))@h
- ori r3, r3, FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_PHYS_LOW, 0, (MAS3_SW|MAS3_SR))@l
-#ifdef CONFIG_ENABLE_36BIT_PHYS
- lis r7, CONFIG_SYS_CCSRBAR_PHYS_HIGH at h
- ori r7, r7, CONFIG_SYS_CCSRBAR_PHYS_HIGH at l
- mtspr MAS7, r7
-#endif
- mtspr MAS0, r0
- mtspr MAS1, r1
- mtspr MAS2, r2
- mtspr MAS3, r3
- isync
- msync
- tlbwe
-
+ create_tlb0_entry 0, \
+ 0, BOOKE_PAGESZ_4K, \
+ CONFIG_SYS_CCSRBAR, MAS2_I|MAS2_G, \
+ CONFIG_SYS_CCSRBAR_PHYS_LOW, MAS3_SW|MAS3_SR, \
+ CONFIG_SYS_CCSRBAR_PHYS_HIGH, r3
/*
* Create a TLB for the current location of CCSR. Register R9 is reserved
* for the virtual address of this TLB (CONFIG_SYS_CCSRBAR + 0x1000).
*/
create_ccsr_old_tlb:
- lis r0, FSL_BOOKE_MAS0(0, 1, 0)@h
- ori r0, r0, FSL_BOOKE_MAS0(0, 1, 0)@l
- lis r2, FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR + 0x1000, (MAS2_I|MAS2_G))@h
- ori r2, r2, FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR + 0x1000, (MAS2_I|MAS2_G))@l
- lis r3, FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_DEFAULT, 0, (MAS3_SW|MAS3_SR))@h
- ori r3, r3, FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_DEFAULT, 0, (MAS3_SW|MAS3_SR))@l
-#ifdef CONFIG_ENABLE_36BIT_PHYS
- li r7, 0 /* The default CCSR address is always a 32-bit number */
- mtspr MAS7, r7
-#endif
- mtspr MAS0, r0
- /* MAS1 is the same as above */
- mtspr MAS2, r2
- mtspr MAS3, r3
- isync
- msync
- tlbwe
+ create_tlb0_entry 1, \
+ 0, BOOKE_PAGESZ_4K, \
+ CONFIG_SYS_CCSRBAR + 0x1000, MAS2_I|MAS2_G, \
+ CONFIG_SYS_CCSRBAR_DEFAULT, MAS3_SW|MAS3_SR, \
+ 0, r3 /* The default CCSR address is always a 32-bit number */
+
/*
* We have a TLB for what we think is the current (old) CCSR. Let's
@@ -743,27 +745,9 @@ write_new_ccsrbar:
/* Delete the temporary TLBs */
delete_temp_tlbs:
- lis r0, FSL_BOOKE_MAS0(0, 0, 0)@h
- ori r0, r0, FSL_BOOKE_MAS0(0, 0, 0)@l
- li r1, 0
- lis r2, FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, (MAS2_I|MAS2_G))@h
- ori r2, r2, FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, (MAS2_I|MAS2_G))@l
- mtspr MAS0, r0
- mtspr MAS1, r1
- mtspr MAS2, r2
- isync
- msync
- tlbwe
+ delete_tlb0_entry 0, CONFIG_SYS_CCSRBAR, MAS2_I|MAS2_G, r3
+ delete_tlb0_entry 1, CONFIG_SYS_CCSRBAR + 0x1000, MAS2_I|MAS2_G, r3
- lis r0, FSL_BOOKE_MAS0(0, 1, 0)@h
- ori r0, r0, FSL_BOOKE_MAS0(0, 1, 0)@l
- lis r2, FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR + 0x1000, (MAS2_I|MAS2_G))@h
- ori r2, r2, FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR + 0x1000, (MAS2_I|MAS2_G))@l
- mtspr MAS0, r0
- mtspr MAS2, r2
- isync
- msync
- tlbwe
#endif /* #if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS) */
#ifdef CONFIG_SYS_FSL_ERRATUM_A004510
@@ -1019,83 +1003,50 @@ create_init_ram_area:
#if !defined(CONFIG_SYS_RAMBOOT) && !defined(CONFIG_SECURE_BOOT)
/* create a temp mapping in AS=1 to the 4M boot window */
- lis r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_4M)@h
- ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_4M)@l
-
- lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE & 0xffc00000, (MAS2_I|MAS2_G))@h
- ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE & 0xffc00000, (MAS2_I|MAS2_G))@l
+ create_tlb1_entry 15, \
+ 1, BOOKE_PAGESZ_4M, \
+ CONFIG_SYS_MONITOR_BASE & 0xffc00000, MAS2_I|MAS2_G, \
+ 0xffc00000, MAS3_SX|MAS3_SW|MAS3_SR, \
+ 0, r6
- /* The 85xx has the default boot window 0xff800000 - 0xffffffff */
- lis r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@h
- ori r9,r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@l
#elif !defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SECURE_BOOT)
/* create a temp mapping in AS = 1 for Flash mapping
* created by PBL for ISBC code
*/
- lis r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_1M)@h
- ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_1M)@l
-
- lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE, (MAS2_I|MAS2_G))@h
- ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE, (MAS2_I|MAS2_G))@l
-
- lis r9,FSL_BOOKE_MAS3(CONFIG_SYS_PBI_FLASH_WINDOW, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@h
- ori r9,r9,FSL_BOOKE_MAS3(CONFIG_SYS_PBI_FLASH_WINDOW, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@l
+ create_tlb1_entry 15, \
+ 1, BOOKE_PAGESZ_1M, \
+ CONFIG_SYS_MONITOR_BASE, MAS2_I|MAS2_G, \
+ CONFIG_SYS_PBI_FLASH_WINDOW, MAS3_SX|MAS3_SW|MAS3_SR, \
+ 0, r6
#else
/*
* create a temp mapping in AS=1 to the 1M CONFIG_SYS_MONITOR_BASE space, the main
* image has been relocated to CONFIG_SYS_MONITOR_BASE on the second stage.
*/
- lis r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_1M)@h
- ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_1M)@l
-
- lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE, (MAS2_I|MAS2_G))@h
- ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE, (MAS2_I|MAS2_G))@l
-
- lis r9,FSL_BOOKE_MAS3(CONFIG_SYS_MONITOR_BASE, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@h
- ori r9,r9,FSL_BOOKE_MAS3(CONFIG_SYS_MONITOR_BASE, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@l
+ create_tlb1_entry 15, \
+ 1, BOOKE_PAGESZ_1M, \
+ CONFIG_SYS_MONITOR_BASE, MAS2_I|MAS2_G, \
+ CONFIG_SYS_MONITOR_BASE, MAS3_SX|MAS3_SW|MAS3_SR, \
+ 0, r6
#endif
- mtspr MAS0,r6
- mtspr MAS1,r7
- mtspr MAS2,r8
- mtspr MAS3,r9
- isync
- msync
- tlbwe
-
/* create a temp mapping in AS=1 to the stack */
- lis r6,FSL_BOOKE_MAS0(1, 14, 0)@h
- ori r6,r6,FSL_BOOKE_MAS0(1, 14, 0)@l
-
- lis r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_16K)@h
- ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_16K)@l
-
- lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_INIT_RAM_ADDR, 0)@h
- ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_INIT_RAM_ADDR, 0)@l
-
#if defined(CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW) && \
defined(CONFIG_SYS_INIT_RAM_ADDR_PHYS_HIGH)
- lis r9,FSL_BOOKE_MAS3(CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@h
- ori r9,r9,FSL_BOOKE_MAS3(CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@l
- li r10,CONFIG_SYS_INIT_RAM_ADDR_PHYS_HIGH
- mtspr MAS7,r10
+ create_tlb1_entry 14, \
+ 1, BOOKE_PAGESZ_16K, \
+ CONFIG_SYS_INIT_RAM_ADDR, 0, \
+ CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW, MAS3_SX|MAS3_SW|MAS3_SR, \
+ CONFIG_SYS_INIT_RAM_ADDR_PHYS_HIGH, r6
+
#else
- lis r9,FSL_BOOKE_MAS3(CONFIG_SYS_INIT_RAM_ADDR, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@h
- ori r9,r9,FSL_BOOKE_MAS3(CONFIG_SYS_INIT_RAM_ADDR, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@l
+ create_tlb1_entry 14, \
+ 1, BOOKE_PAGESZ_16K, \
+ CONFIG_SYS_INIT_RAM_ADDR, 0, \
+ CONFIG_SYS_INIT_RAM_ADDR, MAS3_SX|MAS3_SW|MAS3_SR, \
+ 0, r6
#endif
- mtspr MAS0,r6
- mtspr MAS1,r7
- mtspr MAS2,r8
- mtspr MAS3,r9
- isync
- msync
- tlbwe
-
lis r6,MSR_IS|MSR_DS|MSR_DE at h
ori r6,r6,MSR_IS|MSR_DS|MSR_DE at l
lis r7,switch_as at h
--
1.7.9.5
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