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authorRussell King <rmk+kernel@arm.linux.org.uk>2014-04-05 11:50:38 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2014-05-30 00:50:12 +0100
commitb16cee70fdadaa500e0f962ae76877843281192e (patch)
treeef6e38f0c98fad4992b3f97637a9b1c2c1b87c24 /arch
parentf9040550bef6f05e68af029f11c371a318220a05 (diff)
ARM: l2c: tegra: convert to common l2c310 early resume functionality
Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-tegra/pm.h2
-rw-r--r--arch/arm/mach-tegra/reset-handler.S11
-rw-r--r--arch/arm/mach-tegra/sleep.h31
-rw-r--r--arch/arm/mach-tegra/tegra.c6
4 files changed, 4 insertions, 46 deletions
diff --git a/arch/arm/mach-tegra/pm.h b/arch/arm/mach-tegra/pm.h
index 6e92a7c2ecbd..f4a89698e5b0 100644
--- a/arch/arm/mach-tegra/pm.h
+++ b/arch/arm/mach-tegra/pm.h
@@ -35,8 +35,6 @@ void tegra20_sleep_core_init(void);
void tegra30_lp1_iram_hook(void);
void tegra30_sleep_core_init(void);
-extern unsigned long l2x0_saved_regs_addr;
-
void tegra_clear_cpu_in_lp2(void);
bool tegra_set_cpu_in_lp2(void);
diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S
index 8c1ba4fea384..578d4d1ad648 100644
--- a/arch/arm/mach-tegra/reset-handler.S
+++ b/arch/arm/mach-tegra/reset-handler.S
@@ -19,7 +19,6 @@
#include <asm/cache.h>
#include <asm/asm-offsets.h>
-#include <asm/hardware/cache-l2x0.h>
#include "flowctrl.h"
#include "fuse.h"
@@ -78,8 +77,10 @@ ENTRY(tegra_resume)
str r1, [r0]
#endif
+#ifdef CONFIG_CACHE_L2X0
/* L2 cache resume & re-enable */
- l2_cache_resume r0, r1, r2, l2x0_saved_regs_addr
+ bl l2c310_early_resume
+#endif
end_ca9_scu_l2_resume:
mov32 r9, 0xc0f
cmp r8, r9
@@ -89,12 +90,6 @@ end_ca9_scu_l2_resume:
ENDPROC(tegra_resume)
#endif
-#ifdef CONFIG_CACHE_L2X0
- .globl l2x0_saved_regs_addr
-l2x0_saved_regs_addr:
- .long 0
-#endif
-
.align L1_CACHE_SHIFT
ENTRY(__tegra_cpu_reset_handler_start)
diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h
index a032820d2fac..339fe42cd6fb 100644
--- a/arch/arm/mach-tegra/sleep.h
+++ b/arch/arm/mach-tegra/sleep.h
@@ -120,37 +120,6 @@
mov \tmp1, \tmp1, lsr #8
.endm
-/* Macro to resume & re-enable L2 cache */
-#ifndef L2X0_CTRL_EN
-#define L2X0_CTRL_EN 1
-#endif
-
-#ifdef CONFIG_CACHE_L2X0
-.macro l2_cache_resume, tmp1, tmp2, tmp3, phys_l2x0_saved_regs
- W(adr) \tmp1, \phys_l2x0_saved_regs
- ldr \tmp1, [\tmp1]
- ldr \tmp2, [\tmp1, #L2X0_R_PHY_BASE]
- ldr \tmp3, [\tmp2, #L2X0_CTRL]
- tst \tmp3, #L2X0_CTRL_EN
- bne exit_l2_resume
- ldr \tmp3, [\tmp1, #L2X0_R_TAG_LATENCY]
- str \tmp3, [\tmp2, #L310_TAG_LATENCY_CTRL]
- ldr \tmp3, [\tmp1, #L2X0_R_DATA_LATENCY]
- str \tmp3, [\tmp2, #L310_DATA_LATENCY_CTRL]
- ldr \tmp3, [\tmp1, #L2X0_R_PREFETCH_CTRL]
- str \tmp3, [\tmp2, #L310_PREFETCH_CTRL]
- ldr \tmp3, [\tmp1, #L2X0_R_PWR_CTRL]
- str \tmp3, [\tmp2, #L310_POWER_CTRL]
- ldr \tmp3, [\tmp1, #L2X0_R_AUX_CTRL]
- str \tmp3, [\tmp2, #L2X0_AUX_CTRL]
- mov \tmp3, #L2X0_CTRL_EN
- str \tmp3, [\tmp2, #L2X0_CTRL]
-exit_l2_resume:
-.endm
-#else /* CONFIG_CACHE_L2X0 */
-.macro l2_cache_resume, tmp1, tmp2, tmp3, phys_l2x0_saved_regs
-.endm
-#endif /* CONFIG_CACHE_L2X0 */
#else
void tegra_pen_lock(void);
void tegra_pen_unlock(void);
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index fb802e24b647..1bc49f9db015 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -73,11 +73,7 @@ u32 tegra_uart_config[3] = {
static void __init tegra_init_cache(void)
{
#ifdef CONFIG_CACHE_L2X0
- int ret;
-
- ret = l2x0_of_init(0x3c400001, 0xc20fc3fe);
- if (!ret)
- l2x0_saved_regs_addr = virt_to_phys(&l2x0_saved_regs);
+ l2x0_of_init(0x3c400001, 0xc20fc3fe);
#endif
}