[U-Boot] [PATCH v6 1/4] ARMv7: PSCI: add PSCI v1.0 functions skeleton

[macro.wave.z at gmail.com <macro.wave.z@gmail.com>]

From: Hongbo Zhang <hongbo.zhang@nxp.com>

This patch adds all the PSCI v1.0 functions in to the common framework, with
all the functions returning "not implemented" by default, as a common framework
all the dummy functions are added here, it is up to every platform developer to
decide which version of PSCI and which functions to implement.

Signed-off-by: Hongbo Zhang <hongbo.zhang@nxp.com>
Signed-off-by: Wang Dongsheng <dongsheng.wang@nxp.com>
---
 arch/arm/cpu/armv7/psci.S    | 78 ++++++++++++++++++++++++++++++++++++++++++++
 arch/arm/cpu/armv7/virt-dt.c | 10 +++++-
 arch/arm/include/asm/psci.h  | 16 +++++++++
 3 files changed, 103 insertions(+), 1 deletion(-)

diff --git a/arch/arm/cpu/armv7/psci.S b/arch/arm/cpu/armv7/psci.S
index 350b75c..f80f6e2 100644
--- a/arch/arm/cpu/armv7/psci.S
+++ b/arch/arm/cpu/armv7/psci.S
@@ -46,20 +46,62 @@ ENTRY(default_psci_vector)
 ENDPROC(default_psci_vector)
 .weak default_psci_vector
 
+ENTRY(psci_version)
 ENTRY(psci_cpu_suspend)
 ENTRY(psci_cpu_off)
 ENTRY(psci_cpu_on)
+ENTRY(psci_affinity_info)
 ENTRY(psci_migrate)
+ENTRY(psci_migrate_info_type)
+ENTRY(psci_migrate_info_up_cpu)
+ENTRY(psci_system_off)
+ENTRY(psci_system_reset)
+ENTRY(psci_features)
+ENTRY(psci_cpu_freeze)
+ENTRY(psci_cpu_default_suspend)
+ENTRY(psci_node_hw_state)
+ENTRY(psci_system_suspend)
+ENTRY(psci_set_suspend_mode)
+ENTRY(psi_stat_residency)
+ENTRY(psci_stat_count)
 	mov	r0, #ARM_PSCI_RET_NI	@ Return -1 (Not Implemented)
 	mov	pc, lr
+ENDPROC(psci_stat_count)
+ENDPROC(psi_stat_residency)
+ENDPROC(psci_set_suspend_mode)
+ENDPROC(psci_system_suspend)
+ENDPROC(psci_node_hw_state)
+ENDPROC(psci_cpu_default_suspend)
+ENDPROC(psci_cpu_freeze)
+ENDPROC(psci_features)
+ENDPROC(psci_system_reset)
+ENDPROC(psci_system_off)
+ENDPROC(psci_migrate_info_up_cpu)
+ENDPROC(psci_migrate_info_type)
 ENDPROC(psci_migrate)
+ENDPROC(psci_affinity_info)
 ENDPROC(psci_cpu_on)
 ENDPROC(psci_cpu_off)
 ENDPROC(psci_cpu_suspend)
+ENDPROC(psci_version)
+.weak psci_version
 .weak psci_cpu_suspend
 .weak psci_cpu_off
 .weak psci_cpu_on
+.weak psci_affinity_info
 .weak psci_migrate
+.weak psci_migrate_info_type
+.weak psci_migrate_info_up_cpu
+.weak psci_system_off
+.weak psci_system_reset
+.weak psci_features
+.weak psci_cpu_freeze
+.weak psci_cpu_default_suspend
+.weak psci_node_hw_state
+.weak psci_system_suspend
+.weak psci_set_suspend_mode
+.weak psi_stat_residency
+.weak psci_stat_count
 
 _psci_table:
 	.word	ARM_PSCI_FN_CPU_SUSPEND
@@ -70,6 +112,42 @@ _psci_table:
 	.word	psci_cpu_on
 	.word	ARM_PSCI_FN_MIGRATE
 	.word	psci_migrate
+	.word	ARM_PSCI_0_2_FN_PSCI_VERSION
+	.word	psci_version
+	.word	ARM_PSCI_0_2_FN_CPU_SUSPEND
+	.word	psci_cpu_suspend
+	.word	ARM_PSCI_0_2_FN_CPU_OFF
+	.word	psci_cpu_off
+	.word	ARM_PSCI_0_2_FN_CPU_ON
+	.word	psci_cpu_on
+	.word	ARM_PSCI_0_2_FN_AFFINITY_INFO
+	.word	psci_affinity_info
+	.word	ARM_PSCI_0_2_FN_MIGRATE
+	.word	psci_migrate
+	.word	ARM_PSCI_0_2_FN_MIGRATE_INFO_TYPE
+	.word	psci_migrate_info_type
+	.word	ARM_PSCI_0_2_FN_MIGRATE_INFO_UP_CPU
+	.word	psci_migrate_info_up_cpu
+	.word	ARM_PSCI_0_2_FN_SYSTEM_OFF
+	.word	psci_system_off
+	.word	ARM_PSCI_0_2_FN_SYSTEM_RESET
+	.word	psci_system_reset
+	.word	ARM_PSCI_1_0_FN_PSCI_FEATURES
+	.word	psci_features
+	.word	ARM_PSCI_1_0_FN_CPU_FREEZE
+	.word	psci_cpu_freeze
+	.word	ARM_PSCI_1_0_FN_CPU_DEFAULT_SUSPEND
+	.word	psci_cpu_default_suspend
+	.word	ARM_PSCI_1_0_FN_NODE_HW_STATE
+	.word	psci_node_hw_state
+	.word	ARM_PSCI_1_0_FN_SYSTEM_SUSPEND
+	.word	psci_system_suspend
+	.word	ARM_PSCI_1_0_FN_SET_SUSPEND_MODE
+	.word	psci_set_suspend_mode
+	.word	ARM_PSCI_1_0_FN_STAT_RESIDENCY
+	.word	psi_stat_residency
+	.word	ARM_PSCI_1_0_FN_STAT_COUNT
+	.word	psci_stat_count
 	.word	0
 	.word	0
 
diff --git a/arch/arm/cpu/armv7/virt-dt.c b/arch/arm/cpu/armv7/virt-dt.c
index 32c368f..5e31891 100644
--- a/arch/arm/cpu/armv7/virt-dt.c
+++ b/arch/arm/cpu/armv7/virt-dt.c
@@ -67,7 +67,15 @@ static int fdt_psci(void *fdt)
 			return nodeoff;
 	}
 
-	tmp = fdt_setprop_string(fdt, nodeoff, "compatible", "arm,psci");
+#ifdef CONFIG_ARMV7_PSCI_1_0
+	tmp = fdt_setprop_string(fdt, nodeoff, "compatible", "arm,psci-1.0");
+	if (tmp)
+		return tmp;
+	tmp = fdt_appendprop_string(fdt, nodeoff, "compatible", "arm,psci-0.2");
+	if (tmp)
+		return tmp;
+#endif
+	tmp = fdt_appendprop_string(fdt, nodeoff, "compatible", "arm,psci");
 	if (tmp)
 		return tmp;
 	tmp = fdt_setprop_string(fdt, nodeoff, "method", "smc");
diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h
index 7ba7ce3..58f8b39 100644
--- a/arch/arm/include/asm/psci.h
+++ b/arch/arm/include/asm/psci.h
@@ -31,6 +31,12 @@
 #define ARM_PSCI_RET_NI			(-1)
 #define ARM_PSCI_RET_INVAL		(-2)
 #define ARM_PSCI_RET_DENIED		(-3)
+#define ARM_PSCI_RET_ALREADY_ON		(-4)
+#define ARM_PSCI_RET_ON_PENDING		(-5)
+#define ARM_PSCI_RET_INTERNAL_FAILURE	(-6)
+#define ARM_PSCI_RET_NOT_PRESENT	(-7)
+#define ARM_PSCI_RET_DISABLED		(-8)
+#define ARM_PSCI_RET_INVALID_ADDRESS	(-9)
 
 /* PSCI 0.2 interface */
 #define ARM_PSCI_0_2_FN_BASE			0x84000000
@@ -47,6 +53,16 @@
 #define ARM_PSCI_0_2_FN_SYSTEM_OFF		ARM_PSCI_0_2_FN(8)
 #define ARM_PSCI_0_2_FN_SYSTEM_RESET		ARM_PSCI_0_2_FN(9)
 
+/* PSCI 1.0 interface */
+#define ARM_PSCI_1_0_FN_PSCI_FEATURES		ARM_PSCI_0_2_FN(10)
+#define ARM_PSCI_1_0_FN_CPU_FREEZE		ARM_PSCI_0_2_FN(11)
+#define ARM_PSCI_1_0_FN_CPU_DEFAULT_SUSPEND	ARM_PSCI_0_2_FN(12)
+#define ARM_PSCI_1_0_FN_NODE_HW_STATE		ARM_PSCI_0_2_FN(13)
+#define ARM_PSCI_1_0_FN_SYSTEM_SUSPEND		ARM_PSCI_0_2_FN(14)
+#define ARM_PSCI_1_0_FN_SET_SUSPEND_MODE	ARM_PSCI_0_2_FN(15)
+#define ARM_PSCI_1_0_FN_STAT_RESIDENCY		ARM_PSCI_0_2_FN(16)
+#define ARM_PSCI_1_0_FN_STAT_COUNT		ARM_PSCI_0_2_FN(17)
+
 /* 1KB stack per core */
 #define ARM_PSCI_STACK_SHIFT	10
 #define ARM_PSCI_STACK_SIZE	(1 << ARM_PSCI_STACK_SHIFT)
-- 
2.1.4