summaryrefslogtreecommitdiff
path: root/arch/arm
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S28
-rw-r--r--arch/arm/cpu/armv8/sec_firmware_asm.S6
-rw-r--r--arch/arm/cpu/armv8/start.S8
-rw-r--r--arch/arm/cpu/armv8/transition.S22
-rw-r--r--arch/arm/include/asm/system.h8
-rw-r--r--arch/arm/lib/bootm.c10
-rw-r--r--arch/arm/mach-rmobile/lowlevel_init_gen3.S8
7 files changed, 46 insertions, 44 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S
index 62efa9097e..a2185f2def 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S
+++ b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S
@@ -486,29 +486,29 @@ cpu_is_le:
b.eq 1f
#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
- adr x3, secondary_switch_to_el1
- ldr x4, =ES_TO_AARCH64
+ adr x4, secondary_switch_to_el1
+ ldr x5, =ES_TO_AARCH64
#else
- ldr x3, [x11]
- ldr x4, =ES_TO_AARCH32
+ ldr x4, [x11]
+ ldr x5, =ES_TO_AARCH32
#endif
bl secondary_switch_to_el2
1:
#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
- adr x3, secondary_switch_to_el1
+ adr x4, secondary_switch_to_el1
#else
- ldr x3, [x11]
+ ldr x4, [x11]
#endif
- ldr x4, =ES_TO_AARCH64
+ ldr x5, =ES_TO_AARCH64
bl secondary_switch_to_el2
ENDPROC(secondary_boot_func)
ENTRY(secondary_switch_to_el2)
- switch_el x5, 1f, 0f, 0f
+ switch_el x6, 1f, 0f, 0f
0: ret
-1: armv8_switch_to_el2_m x3, x4, x5
+1: armv8_switch_to_el2_m x4, x5, x6
ENDPROC(secondary_switch_to_el2)
ENTRY(secondary_switch_to_el1)
@@ -522,22 +522,22 @@ ENTRY(secondary_switch_to_el1)
/* physical address of this cpus spin table element */
add x11, x1, x0
- ldr x3, [x11]
+ ldr x4, [x11]
ldr x5, [x11, #24]
ldr x6, =IH_ARCH_DEFAULT
cmp x6, x5
b.eq 2f
- ldr x4, =ES_TO_AARCH32
+ ldr x5, =ES_TO_AARCH32
bl switch_to_el1
-2: ldr x4, =ES_TO_AARCH64
+2: ldr x5, =ES_TO_AARCH64
switch_to_el1:
- switch_el x5, 0f, 1f, 0f
+ switch_el x6, 0f, 1f, 0f
0: ret
-1: armv8_switch_to_el1_m x3, x4, x5
+1: armv8_switch_to_el1_m x4, x5, x6
ENDPROC(secondary_switch_to_el1)
/* Ensure that the literals used by the secondary boot code are
diff --git a/arch/arm/cpu/armv8/sec_firmware_asm.S b/arch/arm/cpu/armv8/sec_firmware_asm.S
index 903195dbce..5ed3677f55 100644
--- a/arch/arm/cpu/armv8/sec_firmware_asm.S
+++ b/arch/arm/cpu/armv8/sec_firmware_asm.S
@@ -57,7 +57,8 @@ ENDPROC(_sec_firmware_support_psci_version)
* x0: argument, zero
* x1: machine nr
* x2: fdt address
- * x3: kernel entry point
+ * x3: input argument
+ * x4: kernel entry point
* @param outputs for secure firmware:
* x0: function id
* x1: kernel entry point
@@ -65,10 +66,9 @@ ENDPROC(_sec_firmware_support_psci_version)
* x3: fdt address
*/
ENTRY(armv8_el2_to_aarch32)
- mov x0, x3
mov x3, x2
mov x2, x1
- mov x1, x0
+ mov x1, x4
ldr x0, =0xc000ff04
smc #0
ret
diff --git a/arch/arm/cpu/armv8/start.S b/arch/arm/cpu/armv8/start.S
index 530870278c..368e3dc028 100644
--- a/arch/arm/cpu/armv8/start.S
+++ b/arch/arm/cpu/armv8/start.S
@@ -262,14 +262,14 @@ WEAK(lowlevel_init)
/*
* All slaves will enter EL2 and optionally EL1.
*/
- adr x3, lowlevel_in_el2
- ldr x4, =ES_TO_AARCH64
+ adr x4, lowlevel_in_el2
+ ldr x5, =ES_TO_AARCH64
bl armv8_switch_to_el2
lowlevel_in_el2:
#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
- adr x3, lowlevel_in_el1
- ldr x4, =ES_TO_AARCH64
+ adr x4, lowlevel_in_el1
+ ldr x5, =ES_TO_AARCH64
bl armv8_switch_to_el1
lowlevel_in_el1:
diff --git a/arch/arm/cpu/armv8/transition.S b/arch/arm/cpu/armv8/transition.S
index adb9f3566b..ca07465376 100644
--- a/arch/arm/cpu/armv8/transition.S
+++ b/arch/arm/cpu/armv8/transition.S
@@ -11,9 +11,9 @@
#include <asm/macro.h>
ENTRY(armv8_switch_to_el2)
- switch_el x5, 1f, 0f, 0f
+ switch_el x6, 1f, 0f, 0f
0:
- cmp x4, #ES_TO_AARCH64
+ cmp x5, #ES_TO_AARCH64
b.eq 2f
/*
* When loading 32-bit kernel, it will jump
@@ -22,23 +22,23 @@ ENTRY(armv8_switch_to_el2)
bl armv8_el2_to_aarch32
2:
/*
- * x3 is kernel entry point or switch_to_el1
+ * x4 is kernel entry point or switch_to_el1
* if CONFIG_ARMV8_SWITCH_TO_EL1 is defined.
* When running in EL2 now, jump to the
- * address saved in x3.
+ * address saved in x4.
*/
- br x3
-1: armv8_switch_to_el2_m x3, x4, x5
+ br x4
+1: armv8_switch_to_el2_m x4, x5, x6
ENDPROC(armv8_switch_to_el2)
ENTRY(armv8_switch_to_el1)
- switch_el x5, 0f, 1f, 0f
+ switch_el x6, 0f, 1f, 0f
0:
- /* x3 is kernel entry point. When running in EL1
- * now, jump to the address saved in x3.
+ /* x4 is kernel entry point. When running in EL1
+ * now, jump to the address saved in x4.
*/
- br x3
-1: armv8_switch_to_el1_m x3, x4, x5
+ br x4
+1: armv8_switch_to_el1_m x4, x5, x6
ENDPROC(armv8_switch_to_el1)
WEAK(armv8_el2_to_aarch32)
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index dc4c9914d7..766e929d46 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -196,11 +196,12 @@ void __asm_switch_ttbr(u64 new_ttbr);
* For loading 32-bit OS, machine nr
* @fdt_addr: For loading 64-bit OS, zero.
* For loading 32-bit OS, fdt address.
+ * @arg4: Input argument.
* @entry_point: kernel entry point
* @es_flag: execution state flag, ES_TO_AARCH64 or ES_TO_AARCH32
*/
void armv8_switch_to_el2(u64 args, u64 mach_nr, u64 fdt_addr,
- u64 entry_point, u64 es_flag);
+ u64 arg4, u64 entry_point, u64 es_flag);
/*
* Switch from EL2 to EL1 for ARMv8
*
@@ -210,13 +211,14 @@ void armv8_switch_to_el2(u64 args, u64 mach_nr, u64 fdt_addr,
* For loading 32-bit OS, machine nr
* @fdt_addr: For loading 64-bit OS, zero.
* For loading 32-bit OS, fdt address.
+ * @arg4: Input argument.
* @entry_point: kernel entry point
* @es_flag: execution state flag, ES_TO_AARCH64 or ES_TO_AARCH32
*/
void armv8_switch_to_el1(u64 args, u64 mach_nr, u64 fdt_addr,
- u64 entry_point, u64 es_flag);
+ u64 arg4, u64 entry_point, u64 es_flag);
void armv8_el2_to_aarch32(u64 args, u64 mach_nr, u64 fdt_addr,
- u64 entry_point);
+ u64 arg4, u64 entry_point);
void gic_init(void);
void gic_send_sgi(unsigned long sgino);
void wait_for_wakeup(void);
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index 43cc83ec95..8125cf023f 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -287,11 +287,11 @@ static void switch_to_el1(void)
if ((IH_ARCH_DEFAULT == IH_ARCH_ARM64) &&
(images.os.arch == IH_ARCH_ARM))
armv8_switch_to_el1(0, (u64)gd->bd->bi_arch_number,
- (u64)images.ft_addr,
+ (u64)images.ft_addr, 0,
(u64)images.ep,
ES_TO_AARCH32);
else
- armv8_switch_to_el1((u64)images.ft_addr, 0, 0,
+ armv8_switch_to_el1((u64)images.ft_addr, 0, 0, 0,
images.ep,
ES_TO_AARCH64);
}
@@ -324,17 +324,17 @@ static void boot_jump_linux(bootm_headers_t *images, int flag)
update_os_arch_secondary_cores(images->os.arch);
#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
- armv8_switch_to_el2((u64)images->ft_addr, 0, 0,
+ armv8_switch_to_el2((u64)images->ft_addr, 0, 0, 0,
(u64)switch_to_el1, ES_TO_AARCH64);
#else
if ((IH_ARCH_DEFAULT == IH_ARCH_ARM64) &&
(images->os.arch == IH_ARCH_ARM))
armv8_switch_to_el2(0, (u64)gd->bd->bi_arch_number,
- (u64)images->ft_addr,
+ (u64)images->ft_addr, 0,
(u64)images->ep,
ES_TO_AARCH32);
else
- armv8_switch_to_el2((u64)images->ft_addr, 0, 0,
+ armv8_switch_to_el2((u64)images->ft_addr, 0, 0, 0,
images->ep,
ES_TO_AARCH64);
#endif
diff --git a/arch/arm/mach-rmobile/lowlevel_init_gen3.S b/arch/arm/mach-rmobile/lowlevel_init_gen3.S
index 11acce0395..ce3d4f5c52 100644
--- a/arch/arm/mach-rmobile/lowlevel_init_gen3.S
+++ b/arch/arm/mach-rmobile/lowlevel_init_gen3.S
@@ -61,14 +61,14 @@ ENTRY(lowlevel_init)
/*
* All slaves will enter EL2 and optionally EL1.
*/
- adr x3, lowlevel_in_el2
- ldr x4, =ES_TO_AARCH64
+ adr x4, lowlevel_in_el2
+ ldr x5, =ES_TO_AARCH64
bl armv8_switch_to_el2
lowlevel_in_el2:
#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
- adr x3, lowlevel_in_el1
- ldr x4, =ES_TO_AARCH64
+ adr x4, lowlevel_in_el1
+ ldr x5, =ES_TO_AARCH64
bl armv8_switch_to_el1
lowlevel_in_el1:
generated by cgit (git 2.34.1) at 2024-12-24 02:38:06 +0000