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authorAhmad Fatoum <ahmad@a3f.at>2022-11-05 13:11:53 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2022-11-07 08:48:13 +0100
commit9b38ebb7589ec631a4e36e1d312cc314f3960316 (patch)
treee2bd1f58251b7497b4215a3abba4e387067f80e8
parent022810dc06b20b5abd14df272a644106993905cb (diff)
downloadbarebox-9b38ebb7589ec631a4e36e1d312cc314f3960316.tar.gz
barebox-9b38ebb7589ec631a4e36e1d312cc314f3960316.tar.xz
ARM: psci: make PSCI method a of_psci_fixup parameter
We currently assume PSCI fixups to always be of method smc, but this is not true when barebox fixes up the node while running under QEMU. In preparation for handling QEMU boot properly when psci-client driver is enabled, give of_psci_fixup an extra parameter. No functional change. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Link: https://lore.barebox.org/20221105121154.3716964-1-ahmad@a3f.at Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--arch/arm/cpu/psci-client.c2
-rw-r--r--arch/arm/cpu/psci-of.c5
-rw-r--r--arch/arm/cpu/psci.c2
-rw-r--r--arch/arm/include/asm/psci.h3
-rw-r--r--arch/arm/mach-layerscape/ppa.c2
5 files changed, 8 insertions, 6 deletions
diff --git a/arch/arm/cpu/psci-client.c b/arch/arm/cpu/psci-client.c
index 7d5b3768b5..613280ad3f 100644
--- a/arch/arm/cpu/psci-client.c
+++ b/arch/arm/cpu/psci-client.c
@@ -110,7 +110,7 @@ static u32 invoke_psci_fn_smc(ulong function, ulong arg0, ulong arg1, ulong arg2
static int of_psci_do_fixup(struct device_node *root, void *context)
{
- return of_psci_fixup(root, *(u32 *)context);
+ return of_psci_fixup(root, *(u32 *)context, "smc");
}
static int __init psci_probe(struct device_d *dev)
diff --git a/arch/arm/cpu/psci-of.c b/arch/arm/cpu/psci-of.c
index ef83b0edee..be16b08617 100644
--- a/arch/arm/cpu/psci-of.c
+++ b/arch/arm/cpu/psci-of.c
@@ -7,7 +7,8 @@
#include <asm/psci.h>
#include <linux/arm-smccc.h>
-int of_psci_fixup(struct device_node *root, unsigned long psci_version)
+int of_psci_fixup(struct device_node *root, unsigned long psci_version,
+ const char *method)
{
struct device_node *psci;
int ret;
@@ -46,7 +47,7 @@ int of_psci_fixup(struct device_node *root, unsigned long psci_version)
if (ret)
return ret;
- ret = of_property_write_string(psci, "method", "smc");
+ ret = of_property_write_string(psci, "method", method);
if (ret)
return ret;
diff --git a/arch/arm/cpu/psci.c b/arch/arm/cpu/psci.c
index d1056e0659..70c97e03a5 100644
--- a/arch/arm/cpu/psci.c
+++ b/arch/arm/cpu/psci.c
@@ -189,7 +189,7 @@ static int of_psci_do_fixup(struct device_node *root, void *unused)
if (bootm_arm_security_state() < ARM_STATE_NONSECURE)
return 0;
- return of_psci_fixup(root, ARM_PSCI_VER_1_0);
+ return of_psci_fixup(root, ARM_PSCI_VER_1_0, "smc");
}
int psci_cpu_entry_c(void)
diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h
index 3c1d046eb9..dbb9adfc3e 100644
--- a/arch/arm/include/asm/psci.h
+++ b/arch/arm/include/asm/psci.h
@@ -144,6 +144,7 @@ static inline int psci_printf(const char *fmt, ...)
int psci_get_cpu_id(void);
-int of_psci_fixup(struct device_node *root, unsigned long psci_version);
+int of_psci_fixup(struct device_node *root, unsigned long psci_version,
+ const char *method);
#endif /* __ARM_PSCI_H__ */
diff --git a/arch/arm/mach-layerscape/ppa.c b/arch/arm/mach-layerscape/ppa.c
index d962fba751..144d052475 100644
--- a/arch/arm/mach-layerscape/ppa.c
+++ b/arch/arm/mach-layerscape/ppa.c
@@ -46,7 +46,7 @@ static int of_psci_do_fixup(struct device_node *root, void *unused)
break;
}
- return of_psci_fixup(root, psci_version);
+ return of_psci_fixup(root, psci_version, "smc");
}
static int ppa_init(void *ppa, size_t ppa_size, void *sec_firmware_addr)