Newly add ARMv8 PSCI needs to be initialized, be copied or reserved in right
place, this patch does all the setup steps.
Signed-off-by: Hongbo Zhang <hongbo.zh...@nxp.com>
Reviewed-by: Tom Rini <tr...@konsulko.com>
---
arch/arm/cpu/armv8/cpu-dt.c | 11 ++++++++++-
arch/arm/cpu/armv8/cpu.c | 22 ++++++++++++++++++++++
arch/arm/include/asm/secure.h | 2 +-
arch/arm/include/asm/system.h | 11 +++++++++++
arch/arm/lib/bootm-fdt.c | 3 ++-
arch/arm/lib/bootm.c | 3 +++
arch/arm/lib/psci-dt.c | 5 +++--
7 files changed, 52 insertions(+), 5 deletions(-)
diff --git a/arch/arm/cpu/armv8/cpu-dt.c b/arch/arm/cpu/armv8/cpu-dt.c
index 659ec27..3a5afe8 100644
--- a/arch/arm/cpu/armv8/cpu-dt.c
+++ b/arch/arm/cpu/armv8/cpu-dt.c
@@ -6,6 +6,7 @@
#include <common.h>
#include <asm/psci.h>
+#include <asm/system.h>
#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
#include <asm/armv8/sec_firmware.h>
#endif
@@ -13,7 +14,8 @@
int psci_update_dt(void *fdt)
{
#ifdef CONFIG_MP
-#if defined(CONFIG_FSL_PPA_ARMV8_PSCI)
+#if defined(CONFIG_ARMV8_PSCI) || defined(CONFIG_FSL_PPA_ARMV8_PSCI)
+
#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
/*
* If the PSCI in SEC Firmware didn't work, avoid to update the
@@ -25,6 +27,13 @@ int psci_update_dt(void *fdt)
return 0;
#endif
fdt_psci(fdt);
+
+#if defined(CONFIG_ARMV8_PSCI) && !defined(CONFIG_ARMV8_SECURE_BASE)
+ /* secure code lives in RAM, keep it alive */
+ fdt_add_mem_rsv(fdt, (unsigned long)__secure_start,
+ __secure_end - __secure_start);
+#endif
+
#endif
#endif
return 0;
diff --git a/arch/arm/cpu/armv8/cpu.c b/arch/arm/cpu/armv8/cpu.c
index e06c3cc..5dcb5e2 100644
--- a/arch/arm/cpu/armv8/cpu.c
+++ b/arch/arm/cpu/armv8/cpu.c
@@ -14,6 +14,7 @@
#include <common.h>
#include <command.h>
#include <asm/system.h>
+#include <asm/secure.h>
#include <linux/compiler.h>
int cleanup_before_linux(void)
@@ -41,3 +42,24 @@ int cleanup_before_linux(void)
return 0;
}
+
+#ifdef CONFIG_ARMV8_PSCI
+static void relocate_secure_section(void)
+{
+#ifdef CONFIG_ARMV8_SECURE_BASE
+ size_t sz = __secure_end - __secure_start;
+
+ memcpy((void *)CONFIG_ARMV8_SECURE_BASE, __secure_start, sz);
+ flush_dcache_range(CONFIG_ARMV8_SECURE_BASE,
+ CONFIG_ARMV8_SECURE_BASE + sz + 1);
+ invalidate_icache_all();
+#endif
+}
+
+void armv8_setup_psci(void)
+{
+ relocate_secure_section();
+ secure_ram_addr(psci_setup_vectors)();
+ secure_ram_addr(psci_arch_init)();
+}
+#endif
diff --git a/arch/arm/include/asm/secure.h b/arch/arm/include/asm/secure.h
index 5a403bc..d23044a 100644
--- a/arch/arm/include/asm/secure.h
+++ b/arch/arm/include/asm/secure.h
@@ -6,7 +6,7 @@
#define __secure __attribute__ ((section ("._secure.text")))
#define __secure_data __attribute__ ((section ("._secure.data")))
-#ifdef CONFIG_ARMV7_SECURE_BASE
+#if defined(CONFIG_ARMV7_SECURE_BASE) || defined(CONFIG_ARMV8_SECURE_BASE)
/*
* Warning, horror ahead.
*
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 01efc43..dc4c991 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -237,6 +237,17 @@ void smc_call(struct pt_regs *args);
void __noreturn psci_system_reset(void);
void __noreturn psci_system_off(void);
+#ifdef CONFIG_ARMV8_PSCI
+extern char __secure_start[];
+extern char __secure_end[];
+extern char __secure_stack_start[];
+extern char __secure_stack_end[];
+
+void armv8_setup_psci(void);
+void psci_setup_vectors(void);
+void psci_arch_init(void);
+#endif
+
#endif /* __ASSEMBLY__ */
#else /* CONFIG_ARM64 */
diff --git a/arch/arm/lib/bootm-fdt.c b/arch/arm/lib/bootm-fdt.c
index 1615756..e261d4f 100644
--- a/arch/arm/lib/bootm-fdt.c
+++ b/arch/arm/lib/bootm-fdt.c
@@ -52,7 +52,8 @@ int arch_fixup_fdt(void *blob)
return ret;
#endif
-#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_FSL_PPA_ARMV8_PSCI)
+#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV8_PSCI) || \
+ defined(CONFIG_FSL_PPA_ARMV8_PSCI)
ret = psci_update_dt(blob);
if (ret)
return ret;
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index 4eee13a..43cc83e 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -316,6 +316,9 @@ static void boot_jump_linux(bootm_headers_t *images, int
flag)
announce_and_cleanup(fake);
if (!fake) {
+#ifdef CONFIG_ARMV8_PSCI
+ armv8_setup_psci();
+#endif
do_nonsec_virt_switch();
update_os_arch_secondary_cores(images->os.arch);
diff --git a/arch/arm/lib/psci-dt.c b/arch/arm/lib/psci-dt.c
index 41e139e..45af037 100644
--- a/arch/arm/lib/psci-dt.c
+++ b/arch/arm/lib/psci-dt.c
@@ -16,7 +16,8 @@
int fdt_psci(void *fdt)
{
-#if defined(CONFIG_FSL_PPA_ARMV8_PSCI) || defined(CONFIG_ARMV7_PSCI)
+#if defined(CONFIG_ARMV7_PSCI) || defined(CONFIG_ARMV8_PSCI) || \
+ defined(CONFIG_FSL_PPA_ARMV8_PSCI)
int nodeoff;
unsigned int psci_ver = 0;
int tmp;
@@ -65,7 +66,7 @@ int fdt_psci(void *fdt)
init_psci_node:
#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
psci_ver = sec_firmware_support_psci_version();
-#elif defined(CONFIG_ARMV7_PSCI_1_0)
+#elif defined(CONFIG_ARMV7_PSCI_1_0) || defined(CONFIG_ARMV8_PSCI)
psci_ver = ARM_PSCI_VER_1_0;
#endif
switch (psci_ver) {
--
2.1.4
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