From: Benjamin Herrenschmidt <benh@kernel•crashing.org>
To: Andrew Morton <akpm@osdl•org>
Cc: linuxppc-dev list <linuxppc-dev@ozlabs•org>,
Linus Torvalds <torvalds@osdl•org>
Subject: [PATCH] ppc32: update cpu state save/restore
Date: Tue, 18 Jan 2005 12:34:11 +1100 [thread overview]
Message-ID: <1106012051.4499.28.camel@gaston> (raw)
Hi !
This patch updates the ppc32 cpu state save/restore code to deal with the Motorola/Freescale
MPC7447A, used, among others, on recent Apple laptops.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel•crashing.org>
Index: linux-work/arch/ppc/kernel/cpu_setup_6xx.S
===================================================================
--- linux-work.orig/arch/ppc/kernel/cpu_setup_6xx.S 2004-11-22 11:49:17.000000000 +1100
+++ linux-work/arch/ppc/kernel/cpu_setup_6xx.S 2005-01-17 13:49:16.268678952 +1100
@@ -292,13 +292,15 @@
cmplwi cr2,r3,0x800c /* 7410 */
cmplwi cr3,r3,0x8001 /* 7455 */
cmplwi cr4,r3,0x8002 /* 7457 */
- cmplwi cr5,r3,0x7000 /* 750FX */
+ cmplwi cr5,r3,0x8003 /* 7447A */
+ cmplwi cr6,r3,0x7000 /* 750FX */
/* cr1 is 7400 || 7410 */
cror 4*cr1+eq,4*cr1+eq,4*cr2+eq
/* cr0 is 74xx */
cror 4*cr0+eq,4*cr0+eq,4*cr3+eq
cror 4*cr0+eq,4*cr0+eq,4*cr4+eq
cror 4*cr0+eq,4*cr0+eq,4*cr1+eq
+ cror 4*cr0+eq,4*cr0+eq,4*cr5+eq
bne 1f
/* Backup 74xx specific regs */
mfspr r4,SPRN_MSSCR0
@@ -316,7 +318,7 @@
mfspr r4,SPRN_LDSTDB
stw r4,CS_LDSTDB(r5)
1:
- bne cr5,1f
+ bne cr6,1f
/* Backup 750FX specific registers */
mfspr r4,SPRN_HID1
stw r4,CS_HID1(r5)
@@ -359,13 +361,15 @@
cmplwi cr2,r3,0x800c /* 7410 */
cmplwi cr3,r3,0x8001 /* 7455 */
cmplwi cr4,r3,0x8002 /* 7457 */
- cmplwi cr5,r3,0x7000 /* 750FX */
+ cmplwi cr5,r3,0x8003 /* 7447A */
+ cmplwi cr6,r3,0x7000 /* 750FX */
/* cr1 is 7400 || 7410 */
cror 4*cr1+eq,4*cr1+eq,4*cr2+eq
/* cr0 is 74xx */
cror 4*cr0+eq,4*cr0+eq,4*cr3+eq
cror 4*cr0+eq,4*cr0+eq,4*cr4+eq
cror 4*cr0+eq,4*cr0+eq,4*cr1+eq
+ cror 4*cr0+eq,4*cr0+eq,4*cr5+eq
bne 2f
/* Restore 74xx specific regs */
lwz r4,CS_MSSCR0(r5)
@@ -404,7 +408,7 @@
mtspr SPRN_LDSTDB,r4
isync
sync
-2: bne cr5,1f
+2: bne cr6,1f
/* Restore 750FX specific registers
* that is restore HID2 on rev 2.x and PLL config & switch
* to PLL 0 on all
reply other threads:[~2005-01-18 1:34 UTC|newest]
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