summaryrefslogtreecommitdiff
path: root/arch/powerpc/cpu/mpc85xx/release.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/release.S')
-rw-r--r--arch/powerpc/cpu/mpc85xx/release.S53
1 files changed, 25 insertions, 28 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/release.S b/arch/powerpc/cpu/mpc85xx/release.S
index 5c4b1e3..a4a21b0 100644
--- a/arch/powerpc/cpu/mpc85xx/release.S
+++ b/arch/powerpc/cpu/mpc85xx/release.S
@@ -69,9 +69,9 @@ __secondary_start_page:
#endif
#ifdef CONFIG_SYS_FSL_ERRATUM_CPU_A003999
- mfspr r3,977
+ mfspr r3,SPRN_HDBCR1
oris r3,r3,0x0100
- mtspr 977,r3
+ mtspr SPRN_HDBCR1,r3
#endif
#ifdef CONFIG_SYS_FSL_ERRATUM_A004510
@@ -93,10 +93,10 @@ __secondary_start_page:
1: /* Erratum says set bits 55:60 to 001001 */
msync
isync
- mfspr r3,976
+ mfspr r3,SPRN_HDBCR0
li r4,0x48
rlwimi r3,r4,0,0x1f8
- mtspr 976,r3
+ mtspr SPRN_HDBCR0,r3
isync
2:
#endif
@@ -154,16 +154,12 @@ __secondary_start_page:
ori r3,r3,toreset(__spin_table_addr)@l
lwz r3,0(r3)
- /*
- * r10 has the base address for the entry.
- * we cannot access it yet before setting up a new TLB
- */
mfspr r0,SPRN_PIR
-#if defined(CONFIG_E6500)
+#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
/*
- * PIR definition for E6500
+ * PIR definition for Chassis 2
* 0-17 Reserved (logic 0s)
- * 8-19 CHIP_ID, 2'b00 - SoC 1
+ * 18-19 CHIP_ID, 2'b00 - SoC 1
* all others - reserved
* 20-24 CLUSTER_ID 5'b00000 - CCM 1
* all others - reserved
@@ -177,32 +173,33 @@ __secondary_start_page:
* 2'b11 - core 3
* 29-31 THREAD_ID 3'b000 - thread 0
* 3'b001 - thread 1
+ *
+ * Power-on PIR increments threads by 0x01, cores within a cluster by 0x08
+ * and clusters by 0x20.
+ *
+ * We renumber PIR so that all threads in the system are consecutive.
*/
- rlwinm r4,r0,29,25,31
+
+ rlwinm r8,r0,29,0x03 /* r8 = core within cluster */
+ srwi r10,r0,5 /* r10 = cluster */
+
+ mulli r5,r10,CONFIG_SYS_FSL_CORES_PER_CLUSTER
+ add r5,r5,r8 /* for spin table index */
+ mulli r4,r5,CONFIG_SYS_FSL_THREADS_PER_CORE /* for PIR */
#elif defined(CONFIG_E500MC)
rlwinm r4,r0,27,27,31
+ mr r5,r4
#else
mr r4,r0
+ mr r5,r4
#endif
- slwi r8,r4,6 /* spin table is padded to 64 byte */
- add r10,r3,r8
-#ifdef CONFIG_E6500
- mfspr r0,SPRN_PIR
/*
- * core 0 thread 0: pir reset value 0x00, new pir 0
- * core 0 thread 1: pir reset value 0x01, new pir 1
- * core 1 thread 0: pir reset value 0x08, new pir 2
- * core 1 thread 1: pir reset value 0x09, new pir 3
- * core 2 thread 0: pir reset value 0x10, new pir 4
- * core 2 thread 1: pir reset value 0x11, new pir 5
- * etc.
- *
- * Only thread 0 of each core will be running, updating PIR doesn't
- * need to deal with the thread bits.
+ * r10 has the base address for the entry.
+ * we cannot access it yet before setting up a new TLB
*/
- rlwinm r4,r0,30,24,30
-#endif
+ slwi r8,r5,6 /* spin table is padded to 64 byte */
+ add r10,r3,r8
mtspr SPRN_PIR,r4 /* write to PIR register */