From: Renaud Barbier <renaud.barbier@ge.com>
To: barebox@lists.infradead.org
Subject: [PATCH 4/5] ppc: cpu-85xx: import U-Boot start-up code
Date: Wed, 15 Jan 2014 11:47:43 +0000 [thread overview]
Message-ID: <1389786464-22085-5-git-send-email-renaud.barbier@ge.com> (raw)
In-Reply-To: <1389786464-22085-1-git-send-email-renaud.barbier@ge.com>
Import U-Boot start-up code from version git-9407c3fc to include the
latest CPUs errata and make future U-Boot code inclusion easier. The
code import is limited to the currently supported CPUs P2020/MPC8544.
Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
---
arch/ppc/cpu-85xx/start.S | 395 ++++++++++++++-------
arch/ppc/include/asm/mmu.h | 3 +
arch/ppc/include/asm/processor.h | 2 +
arch/ppc/mach-mpc85xx/cpu_init.c | 2 +-
.../ppc/mach-mpc85xx/include/mach/config_mpc85xx.h | 4 +
5 files changed, 277 insertions(+), 129 deletions(-)
diff --git a/arch/ppc/cpu-85xx/start.S b/arch/ppc/cpu-85xx/start.S
index 638b6b8..d32cb62 100644
--- a/arch/ppc/cpu-85xx/start.S
+++ b/arch/ppc/cpu-85xx/start.S
@@ -1,20 +1,8 @@
/*
- * Copyright 2004, 2007-2011 Freescale Semiconductor, Inc.
+ * Copyright 2004, 2007-2012 Freescale Semiconductor, Inc.
* Copyright (C) 2003 Motorola,Inc.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
@@ -41,7 +29,7 @@
/*
* Set up GOT: Global Offset Table
*
- * Use r12 to access the GOT
+ * Use r14 to access the GOT
*/
START_GOT
GOT_ENTRY(_GOT2_TABLE_)
@@ -71,6 +59,17 @@
.globl _start_e500
_start_e500:
+/* Enable debug exception */
+ li r1,MSR_DE
+ mtmsr r1
+
+#ifdef FSL_ERRATUM_A005125
+ msync
+ isync
+ mfspr r3, SPRN_HDBCR0
+ oris r3, r3, 0x0080
+ mtspr SPRN_HDBCR0, r3
+#endif
/* clear registers/arrays not reset by hardware */
@@ -82,77 +81,68 @@ _start_e500:
mfspr r1,DBSR
mtspr DBSR,r1 /* Clear all valid bits */
- /* Enable/invalidate the I-Cache */
- lis r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@h
- ori r2,r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@l
- mtspr SPRN_L1CSR1,r2
-1:
- mfspr r3,SPRN_L1CSR1
- and. r1,r3,r2
- bne 1b
- lis r3,(L1CSR1_CPE|L1CSR1_ICE)@h
- ori r3,r3,(L1CSR1_CPE|L1CSR1_ICE)@l
- mtspr SPRN_L1CSR1,r3
+ .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@h
+ ori \scratch, \scratch, \phy_high@l
+ mtspr MAS7, \scratch
isync
-2:
- mfspr r3,SPRN_L1CSR1
- andi. r1,r3,L1CSR1_ICE@l
- beq 2b
-
- /* Enable/invalidate the D-Cache */
- lis r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@h
- ori r2,r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@l
- mtspr SPRN_L1CSR0,r2
-1:
- mfspr r3,SPRN_L1CSR0
- and. r1,r3,r2
- bne 1b
-
- lis r3,(L1CSR0_CPE|L1CSR0_DCE)@h
- ori r3,r3,(L1CSR0_CPE|L1CSR0_DCE)@l
- mtspr SPRN_L1CSR0,r3
+ msync
+ tlbwe
isync
-2:
- mfspr r3,SPRN_L1CSR0
- andi. r1,r3,L1CSR0_DCE@l
- beq 2b
+ .endm
/* Setup interrupt vectors */
lis r1,TEXT_BASE@h
mtspr IVPR,r1
- li r1,0x0100
- mtspr IVOR0,r1 /* 0: Critical input */
- li r1,0x0200
- mtspr IVOR1,r1 /* 1: Machine check */
- li r1,0x0300
- mtspr IVOR2,r1 /* 2: Data storage */
- li r1,0x0400
- mtspr IVOR3,r1 /* 3: Instruction storage */
- li r1,0x0500
- mtspr IVOR4,r1 /* 4: External interrupt */
- li r1,0x0600
- mtspr IVOR5,r1 /* 5: Alignment */
- li r1,0x0700
- mtspr IVOR6,r1 /* 6: Program check */
- li r1,0x0800
- mtspr IVOR7,r1 /* 7: floating point unavailable */
- li r1,0x0900
- mtspr IVOR8,r1 /* 8: System call */
+ lis r3,(TEXT_BASE & 0xffff)@h
+ ori r3,r3,(TEXT_BASE & 0xffff)@l
+
+ addi r4,r3,CriticalInput - _start + _START_OFFSET
+ mtspr IVOR0,r4 /* 0: Critical input */
+ addi r4,r3,MachineCheck - _start + _START_OFFSET
+ mtspr IVOR1,r4 /* 1: Machine check */
+ addi r4,r3,DataStorage - _start + _START_OFFSET
+ mtspr IVOR2,r4 /* 2: Data storage */
+ addi r4,r3,InstStorage - _start + _START_OFFSET
+ mtspr IVOR3,r4 /* 3: Instruction storage */
+ addi r4,r3,ExtInterrupt - _start + _START_OFFSET
+ mtspr IVOR4,r4 /* 4: External interrupt */
+ addi r4,r3,Alignment - _start + _START_OFFSET
+ mtspr IVOR5,r4 /* 5: Alignment */
+ addi r4,r3,ProgramCheck - _start + _START_OFFSET
+ mtspr IVOR6,r4 /* 6: Program check */
+ addi r4,r3,FPUnavailable - _start + _START_OFFSET
+ mtspr IVOR7,r4 /* 7: floating point unavailable */
+ addi r4,r3,SystemCall - _start + _START_OFFSET
+ mtspr IVOR8,r4 /* 8: System call */
/* 9: Auxiliary processor unavailable(unsupported) */
- li r1,0x0a00
- mtspr IVOR10,r1 /* 10: Decrementer */
- li r1,0x0b00
- mtspr IVOR11,r1 /* 11: Interval timer */
- li r1,0x0c00
- mtspr IVOR12,r1 /* 12: Watchdog timer */
- li r1,0x0d00
- mtspr IVOR13,r1 /* 13: Data TLB error */
- li r1,0x0e00
- mtspr IVOR14,r1 /* 14: Instruction TLB error */
- li r1,0x0f00
- mtspr IVOR15,r1 /* 15: Debug */
+ addi r4,r3,Decrementer - _start + _START_OFFSET
+ mtspr IVOR10,r4 /* 10: Decrementer */
+ addi r4,r3,IntervalTimer - _start + _START_OFFSET
+ mtspr IVOR11,r4 /* 11: Interval timer */
+ addi r4,r3,WatchdogTimer - _start + _START_OFFSET
+ mtspr IVOR12,r4 /* 12: Watchdog timer */
+ addi r4,r3,DataTLBError - _start + _START_OFFSET
+ mtspr IVOR13,r4 /* 13: Data TLB error */
+ addi r4,r3,InstructionTLBError - _start + _START_OFFSET
+ mtspr IVOR14,r4 /* 14: Instruction TLB error */
+ addi r4,r3,DebugBreakpoint - _start + _START_OFFSET
+ mtspr IVOR15,r4 /* 15: Debug */
/* Clear and set up some registers. */
li r0,0x0000
@@ -188,52 +178,163 @@ _start_e500:
mtspr SPRN_BUCSR,r0
#endif
- lis r6,FSL_BOOKE_MAS0(1, 15, 0)@h
- ori r6,r6,FSL_BOOKE_MAS0(1, 15, 0)@l
+/*
+ * Search for the TLB that covers the code we're executing, and shrink it
+ * so that it covers only this 4K page. That will ensure that any other
+ * TLB we create won't interfere with it. We assume that the TLB exists,
+ * which is why we don't check the Valid bit of MAS1. We also assume
+ * it is in TLB1.
+ *
+ * This is necessary, for example, when booting from the on-chip ROM,
+ * which (oddly) creates a single 4GB TLB that covers CCSR and DDR.
+ */
+ bl nexti /* Find our address */
+nexti: mflr r1 /* R1 = our PC */
+ li r2, 0
+ mtspr MAS6, r2 /* Assume the current PID and AS are 0 */
+ isync
+ msync
+ tlbsx 0, r1 /* This must succeed */
- /* 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
+ mfspr r14, MAS0 /* Save ESEL for later */
+ rlwinm r14, r14, 16, 0xfff
- lis r8,FSL_BOOKE_MAS2(TEXT_BASE & 0xffc00000, (MAS2_I|MAS2_G))@h
- ori r8,r8,FSL_BOOKE_MAS2(TEXT_BASE & 0xffc00000, (MAS2_I|MAS2_G))@l
+ /* Set the size of the TLB to 4KB */
+ mfspr r3, MAS1
+ li r2, 0xF80
+ andc r3, r3, r2 /* Clear the TSIZE bits */
+ ori r3, r3, MAS1_TSIZE(BOOKE_PAGESZ_4K)@l
+ oris r3, r3, MAS1_IPROT@h
+ mtspr MAS1, r3
- 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
+ /*
+ * Set the base address of the TLB to our PC. We assume that
+ * virtual == physical. We also assume that MAS2_EPN == MAS3_RPN.
+ */
+ lis r3, MAS2_EPN@h
+ ori r3, r3, MAS2_EPN@l /* R3 = MAS2_EPN */
+
+ and r1, r1, r3 /* Our PC, rounded down to the nearest page */
+
+ mfspr r2, MAS2
+ andc r2, r2, r3
+ or r2, r2, r1
+ mtspr MAS2, r2 /* Set the EPN to our PC base address */
+
+ mfspr r2, MAS3
+ andc r2, r2, r3
+ or r2, r2, r1
+ mtspr MAS3, r2 /* Set the RPN to our PC base address */
- 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
+/*
+ * Clear out any other TLB entries that may exist, to avoid conflicts.
+ * Our TLB entry is in r14.
+ */
+ li r0, TLBIVAX_ALL | TLBIVAX_TLB0
+ tlbivax 0, r0
+ tlbsync
- 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
+ mfspr r4, SPRN_TLB1CFG
+ rlwinm r4, r4, 0, TLBnCFG_NENTRY_MASK
- lis r8,FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR, 0)@h
- ori r8,r8,FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR, 0)@l
+ li r3, 0
+ mtspr MAS1, r3
+1: cmpw r3, r14
+ rlwinm r5, r3, 16, MAS0_ESEL_MSK
+ addi r3, r3, 1
+ beq 2f /* skip the entry we're executing from */
- lis r9,FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@h
- ori r9,r9,FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR, 0,
- (MAS3_SX|MAS3_SW|MAS3_SR))@l
+ oris r5, r5, MAS0_TLBSEL(1)@h
+ mtspr MAS0, r5
- mtspr MAS0,r6
- mtspr MAS1,r7
- mtspr MAS2,r8
- mtspr MAS3,r9
isync
- msync
tlbwe
+ isync
+ msync
+
+2: cmpw r3, r4
+ blt 1b
+
+#if defined(PPC_E500_DEBUG_TLB)
+/*
+ * TLB entry for debuggging in AS1
+ * Create temporary TLB entry in AS0 to handle debug exception
+ * As on debug exception MSR is cleared i.e. Address space is changed
+ * to 0. A TLB entry (in AS0) is required to handle debug exception generated
+ * in AS1.
+ *
+ * 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.
+ */
+ create_tlb1_entry PPC_E500_DEBUG_TLB, \
+ 0, BOOKE_PAGESZ_4M, \
+ TEXT_BASE & 0xffc00000, MAS2_I|MAS2_G, \
+ 0xffc00000, MAS3_SX|MAS3_SW|MAS3_SR, \
+ 0, r6
- lis r6,MSR_IS|MSR_DS@h
- ori r6,r6,MSR_IS|MSR_DS@l
+#endif
+
+ /* Enable/invalidate the I-Cache */
+ lis r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@h
+ ori r2,r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@l
+ mtspr SPRN_L1CSR1,r2
+1:
+ mfspr r3,SPRN_L1CSR1
+ and. r1,r3,r2
+ bne 1b
+
+ lis r3,(L1CSR1_CPE|L1CSR1_ICE)@h
+ ori r3,r3,(L1CSR1_CPE|L1CSR1_ICE)@l
+ mtspr SPRN_L1CSR1,r3
+ isync
+2:
+ mfspr r3,SPRN_L1CSR1
+ andi. r1,r3,L1CSR1_ICE@l
+ beq 2b
+
+ /* Enable/invalidate the D-Cache */
+ lis r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@h
+ ori r2,r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@l
+ mtspr SPRN_L1CSR0,r2
+1:
+ mfspr r3,SPRN_L1CSR0
+ and. r1,r3,r2
+ bne 1b
+
+ lis r3,(L1CSR0_CPE|L1CSR0_DCE)@h
+ ori r3,r3,(L1CSR0_CPE|L1CSR0_DCE)@l
+ mtspr SPRN_L1CSR0,r3
+ isync
+2:
+ mfspr r3,SPRN_L1CSR0
+ andi. r1,r3,L1CSR0_DCE@l
+ beq 2b
+
+create_init_ram_area:
+ lis r6,FSL_BOOKE_MAS0(1, 15, 0)@h
+ ori r6,r6,FSL_BOOKE_MAS0(1, 15, 0)@l
+
+ /* create a temp mapping in AS=1 to the 4M boot window */
+ create_tlb1_entry 15, \
+ 1, BOOKE_PAGESZ_4M, \
+ TEXT_BASE & 0xffc00000, MAS2_I|MAS2_G, \
+ 0xffc00000, MAS3_SX|MAS3_SW|MAS3_SR, \
+ 0, r6
+
+ /* create a temp mapping in AS=1 to the stack */
+ create_tlb1_entry 14, \
+ 1, BOOKE_PAGESZ_16K, \
+ CFG_INIT_RAM_ADDR, 0, \
+ CFG_INIT_RAM_ADDR, MAS3_SX|MAS3_SW|MAS3_SR, \
+ 0, r6
+
+ lis r6,MSR_IS|MSR_DS|MSR_DE@h
+ ori r6,r6,MSR_IS|MSR_DS|MSR_DE@l
lis r7,switch_as@h
ori r7,r7,switch_as@l
@@ -278,18 +379,12 @@ _start:
.globl _start_cont
_start_cont:
/* Setup the stack in initial RAM,could be L2-as-SRAM or L1 dcache */
- lis r1,CFG_INIT_RAM_ADDR@h
- ori r1,r1,CFG_INIT_SP_OFFSET@l
-
+ lis r3,(CFG_INIT_RAM_ADDR)@h
+ ori r3,r3,((CFG_INIT_SP_OFFSET-16)&~0xf)@l
li r0,0
- stwu r0,-4(r1)
- stwu r0,-4(r1) /* Terminate call chain */
-
- stwu r1,-8(r1) /* Save back chain and move SP */
- lis r0,RESET_VECTOR@h /* Address of reset vector */
- ori r0,r0,RESET_VECTOR@l
- stwu r1,-8(r1) /* Save back chain and move SP */
- stw r0,+12(r1) /* Save return addr (underflow vect) */
+ stw r0,0(r3) /* Terminate Back Chain */
+ stw r0,+4(r3) /* NULL return address. */
+ mr r1,r3 /* Transfer to SP(r1) */
GET_GOT
bl cpu_init_early_f
@@ -304,8 +399,6 @@ _start_cont:
b relocate_code
isync
- /* NOTREACHED - board_init_f() does not return */
-
. = EXC_OFF_SYS_RESET
.globl _start_of_vectors
_start_of_vectors:
@@ -322,6 +415,9 @@ _start_of_vectors:
/* Instruction Storage exception. */
STD_EXCEPTION(0x0400, InstStorage, UnknownException)
+/* External Interrupt exception. */
+ STD_EXCEPTION(0x0500, ExtInterrupt, UnknownException)
+
/* Alignment exception. */
. = 0x0600
Alignment:
@@ -766,7 +862,7 @@ e500_write_tlb:
* This "function" does not return, instead it continues in RAM
* after relocating the monitor code.
*
- * r3 = dest
+ * r3 = end_of_ram
* r4 = src
* r5 = length in bytes
* r6 = cachelinesize
@@ -854,16 +950,23 @@ relocate_code:
isync
/*
- * Re-point the IVPR at RAM
- */
- mtspr IVPR,r10
-
- /*
* We are done. Do not return, instead branch to second part of board
* initialization, now running from RAM.
*/
addi r0,r10,in_ram - _start + _START_OFFSET
+
+ /*
+ * As IVPR is going to point RAM address,
+ * Make sure IVOR15 has valid opcode to support debugger
+ */
+ mtspr IVOR15,r0
+
+ /*
+ * Re-point the IVPR at RAM
+ */
+ mtspr IVPR,r10
+
mtlr r0
blr /* NEVER RETURNS! */
@@ -923,7 +1026,7 @@ clear_bss:
stw r0,0(r3)
addi r3,r3,4
cmplw 0,r3,r4
- bne 5b
+ blt 5b
6:
mr r3, r10 /* Destination Address */
bl board_init_r
@@ -964,6 +1067,8 @@ trap_init:
bl trap_reloc
li r7,.L_InstStorage - _start + _START_OFFSET
bl trap_reloc
+ li r7,.L_ExtInterrupt - _start + _START_OFFSET
+ bl trap_reloc
li r7,.L_Alignment - _start + _START_OFFSET
bl trap_reloc
li r7,.L_ProgramCheck - _start + _START_OFFSET
@@ -980,6 +1085,39 @@ trap_init:
cmplw 0,r7,r8
blt 2b
+ /* Update IVORs as per relocated vector table address */
+ li r7,0x0100
+ mtspr IVOR0,r7 /* 0: Critical input */
+ li r7,0x0200
+ mtspr IVOR1,r7 /* 1: Machine check */
+ li r7,0x0300
+ mtspr IVOR2,r7 /* 2: Data storage */
+ li r7,0x0400
+ mtspr IVOR3,r7 /* 3: Instruction storage */
+ li r7,0x0500
+ mtspr IVOR4,r7 /* 4: External interrupt */
+ li r7,0x0600
+ mtspr IVOR5,r7 /* 5: Alignment */
+ li r7,0x0700
+ mtspr IVOR6,r7 /* 6: Program check */
+ li r7,0x0800
+ mtspr IVOR7,r7 /* 7: floating point unavailable */
+ li r7,0x0900
+ mtspr IVOR8,r7 /* 8: System call */
+ /* 9: Auxiliary processor unavailable(unsupported) */
+ li r7,0x0a00
+ mtspr IVOR10,r7 /* 10: Decrementer */
+ li r7,0x0b00
+ mtspr IVOR11,r7 /* 11: Interval timer */
+ li r7,0x0c00
+ mtspr IVOR12,r7 /* 12: Watchdog timer */
+ li r7,0x0d00
+ mtspr IVOR13,r7 /* 13: Data TLB error */
+ li r7,0x0e00
+ mtspr IVOR14,r7 /* 14: Instruction TLB error */
+ li r7,0x0f00
+ mtspr IVOR15,r7 /* 15: Debug */
+
lis r7,0x0
mtspr IVPR,r7
@@ -1001,6 +1139,7 @@ unlock_ram_in_cache:
slwi r4,r4,(10 - 1 - L1_CACHE_SHIFT)
mtctr r4
1: dcbi r0,r3
+ dcblc r0,r3
addi r3,r3,CACHELINE_SIZE
bdnz 1b
sync
diff --git a/arch/ppc/include/asm/mmu.h b/arch/ppc/include/asm/mmu.h
index c886d14..72233b4 100644
--- a/arch/ppc/include/asm/mmu.h
+++ b/arch/ppc/include/asm/mmu.h
@@ -462,6 +462,9 @@ extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
#define BOOKE_PAGESZ_2G 21
#define BOOKE_PAGESZ_4G 22
+#define TLBIVAX_ALL 4
+#define TLBIVAX_TLB0 0
+
#if defined(CONFIG_MPC86xx)
#define LAWBAR_BASE_ADDR 0x00FFFFFF
#define LAWAR_TRGT_IF 0x01F00000
diff --git a/arch/ppc/include/asm/processor.h b/arch/ppc/include/asm/processor.h
index 059d33f..819babb 100644
--- a/arch/ppc/include/asm/processor.h
+++ b/arch/ppc/include/asm/processor.h
@@ -430,6 +430,7 @@
#define SPRN_TLB0CFG 0x2B0 /* TLB 0 Config Register */
#define SPRN_TLB1CFG 0x2B1 /* TLB 1 Config Register */
#define SPRN_TLB1PS 0x159 /* TLB 1 Page Size Register */
+#define TLBnCFG_NENTRY_MASK 0x00000fff
#define SPRN_MMUCSR0 0x3f4 /* MMU control and status register 0 */
#define SPRN_MMUCFG 0x3f7 /* MMU Configuration Register */
#define MMUCFG_MAVN 0x00000003 /* MMU Architecture Version Number */
@@ -470,6 +471,7 @@
#define SPRN_MSSCRO 0x3f6
#endif
+#define SPRN_HDBCR0 0x3d0
/* Short-hand versions for a number of the above SPRNs */
diff --git a/arch/ppc/mach-mpc85xx/cpu_init.c b/arch/ppc/mach-mpc85xx/cpu_init.c
index 8372b7f..7b50cef 100644
--- a/arch/ppc/mach-mpc85xx/cpu_init.c
+++ b/arch/ppc/mach-mpc85xx/cpu_init.c
@@ -110,7 +110,7 @@ void cpu_init_early_f(void)
fsl_setup_ccsrbar();
fsl_init_laws();
- e500_invalidate_tlb(0);
+ e500_invalidate_tlb(1);
e500_init_tlbs();
}
diff --git a/arch/ppc/mach-mpc85xx/include/mach/config_mpc85xx.h b/arch/ppc/mach-mpc85xx/include/mach/config_mpc85xx.h
index 7d606d1..27358e8 100644
--- a/arch/ppc/mach-mpc85xx/include/mach/config_mpc85xx.h
+++ b/arch/ppc/mach-mpc85xx/include/mach/config_mpc85xx.h
@@ -29,11 +29,15 @@
#define FSL_NUM_LAWS 12
#define FSL_SEC_COMPAT 2
#define FSL_NUM_TSEC 3
+#define FSL_ERRATUM_A005125
+#define PPC_E500_DEBUG_TLB 2
#elif defined(CONFIG_MPC8544)
#define MAX_CPUS 1
#define FSL_NUM_LAWS 10
#define FSL_NUM_TSEC 2
+#define FSL_ERRATUM_A005125
+#define PPC_E500_DEBUG_TLB 0
#else
#error Processor type not defined for this platform
--
1.8.4.2
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next prev parent reply other threads:[~2014-01-15 11:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-15 11:47 [PATCH 0/5] ppc: Import latest U-Boot code Renaud Barbier
2014-01-15 11:47 ` [PATCH 1/5] ppc: cpu-85xx: upgrade MMU support to v2 pages sizes Renaud Barbier
2014-01-15 11:47 ` [PATCH 2/5] ppc: mpc85xx: use common linker script Renaud Barbier
2014-01-15 11:47 ` [PATCH 3/5] ppc: mpc85xx: change bss relocation Renaud Barbier
2014-01-15 11:47 ` Renaud Barbier [this message]
2014-01-15 11:47 ` [PATCH 5/5] cpu-85xx: start.S: clean up imported code Renaud Barbier
2014-01-16 13:30 ` [PATCH 0/5] ppc: Import latest U-Boot code Sascha Hauer
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