_sunxi_cpu_entry can be converted completely into a reusable
psci_cpu_entry. Tegra124 will use it as well.
As with psci_disable_smp, also the enabling is designed to be overloaded
in cased SMP is not controlled via ACTLR.
CC: Marc Zyngier <marc.zyng...@arm.com>
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Reviewed-by: Tom Rini <tr...@konsulko.com>
Reviewed-by: Thierry Reding <tred...@nvidia.com>
Tested-by: Thierry Reding <tred...@nvidia.com>
Tested-by: Ian Campbell <i...@hellion.org.uk>
---
arch/arm/cpu/armv7/psci.S | 23 +++++++++++++++++++++++
arch/arm/cpu/armv7/sunxi/psci.S | 20 ++------------------
2 files changed, 25 insertions(+), 18 deletions(-)
diff --git a/arch/arm/cpu/armv7/psci.S b/arch/arm/cpu/armv7/psci.S
index cdcdccd..7d89b43 100644
--- a/arch/arm/cpu/armv7/psci.S
+++ b/arch/arm/cpu/armv7/psci.S
@@ -165,6 +165,15 @@ ENTRY(psci_disable_smp)
ENDPROC(psci_disable_smp)
.weak psci_disable_smp
+ENTRY(psci_enable_smp)
+ mrc p15, 0, r0, c1, c0, 1 @ ACTLR
+ orr r0, r0, #(1 << 6) @ Set SMP bit
+ mcr p15, 0, r0, c1, c0, 1 @ ACTLR
+ isb
+ bx lr
+ENDPROC(psci_enable_smp)
+.weak psci_enable_smp
+
ENTRY(psci_cpu_off_common)
push {lr}
@@ -184,4 +193,18 @@ ENTRY(psci_cpu_off_common)
bx lr
ENDPROC(psci_cpu_off_common)
+ENTRY(psci_cpu_entry)
+ bl psci_enable_smp
+
+ bl _nonsec_init
+
+ adr r0, _psci_target_pc
+ ldr r0, [r0]
+ b _do_nonsec_entry
+ENDPROC(psci_cpu_entry)
+
+.globl _psci_target_pc
+_psci_target_pc:
+ .word 0
+
.popsection
diff --git a/arch/arm/cpu/armv7/sunxi/psci.S b/arch/arm/cpu/armv7/sunxi/psci.S
index 05d047b..90dcff1 100644
--- a/arch/arm/cpu/armv7/sunxi/psci.S
+++ b/arch/arm/cpu/armv7/sunxi/psci.S
@@ -139,7 +139,7 @@ out: mcr p15, 0, r7, c1, c1, 0
@ r2 = target PC
.globl psci_cpu_on
psci_cpu_on:
- adr r0, _target_pc
+ ldr r0, =_psci_target_pc
str r2, [r0]
dsb
@@ -151,7 +151,7 @@ psci_cpu_on:
mov r4, #1
lsl r4, r4, r1
- adr r6, _sunxi_cpu_entry
+ ldr r6, =psci_cpu_entry
str r6, [r0, #0x1a4] @ PRIVATE_REG (boot vector)
@ Assert reset on target CPU
@@ -197,22 +197,6 @@ psci_cpu_on:
mov r0, #ARM_PSCI_RET_SUCCESS @ Return PSCI_RET_SUCCESS
mov pc, lr
-_target_pc:
- .word 0
-
-_sunxi_cpu_entry:
- @ Set SMP bit
- mrc p15, 0, r0, c1, c0, 1
- orr r0, r0, #0x40
- mcr p15, 0, r0, c1, c0, 1
- isb
-
- bl _nonsec_init
-
- adr r0, _target_pc
- ldr r0, [r0]
- b _do_nonsec_entry
-
.globl psci_cpu_off
psci_cpu_off:
bl psci_cpu_off_common
--
2.1.4
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