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authorLokesh Vutla <lokeshvutla@ti.com>2012-05-29 19:26:41 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-07-07 14:07:34 +0200
commit702395073fa746f0dcfe6f16f781b4d84645fc40 (patch)
tree652a81818ad8afb7a9eee7e84c3df5ea6db15c66 /arch/arm/include
parentf8b9d1d30ece82abccefac3c860c06f8b7da8fbb (diff)
downloadu-boot-linaro-stable-702395073fa746f0dcfe6f16f781b4d84645fc40.tar.gz
ARM: OMAP3+: Detect reset type
Certain modules are not affected by means of a warm reset and need not be configured again. Adding an API to detect the reset reason warm/cold. This will be used to skip the module configurations that are retained across a warm reset. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: R Sricharan <r.sricharan@ti.com>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/arch-am33xx/cpu.h2
-rw-r--r--arch/arm/include/asm/arch-omap3/cpu.h2
-rw-r--r--arch/arm/include/asm/arch-omap3/sys_proto.h1
-rw-r--r--arch/arm/include/asm/arch-omap4/cpu.h2
-rw-r--r--arch/arm/include/asm/arch-omap4/sys_proto.h1
-rw-r--r--arch/arm/include/asm/arch-omap5/cpu.h2
-rw-r--r--arch/arm/include/asm/arch-omap5/sys_proto.h1
7 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-am33xx/cpu.h b/arch/arm/include/asm/arch-am33xx/cpu.h
index 5a6534e32..a027e3128 100644
--- a/arch/arm/include/asm/arch-am33xx/cpu.h
+++ b/arch/arm/include/asm/arch-am33xx/cpu.h
@@ -53,8 +53,10 @@
/* Reset control */
#ifdef CONFIG_AM33XX
#define PRM_RSTCTRL 0x44E00F00
+#define PRM_RSTST 0x44E00F08
#endif
#define PRM_RSTCTRL_RESET 0x01
+#define PRM_RSTST_WARM_RESET_MASK 0x232
#ifndef __KERNEL_STRICT_NAMES
#ifndef __ASSEMBLY__
diff --git a/arch/arm/include/asm/arch-omap3/cpu.h b/arch/arm/include/asm/arch-omap3/cpu.h
index 457f99d2c..5683e1617 100644
--- a/arch/arm/include/asm/arch-omap3/cpu.h
+++ b/arch/arm/include/asm/arch-omap3/cpu.h
@@ -479,6 +479,8 @@ struct prm {
#define PRM_RSTCTRL 0x48307250
#define PRM_RSTCTRL_RESET 0x04
+#define PRM_RSTST 0x48307258
+#define PRM_RSTST_WARM_RESET_MASK 0x7D2
#define SYSCLKDIV_1 (0x1 << 6)
#define SYSCLKDIV_2 (0x1 << 7)
diff --git a/arch/arm/include/asm/arch-omap3/sys_proto.h b/arch/arm/include/asm/arch-omap3/sys_proto.h
index 2a89e5653..9e52b12aa 100644
--- a/arch/arm/include/asm/arch-omap3/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap3/sys_proto.h
@@ -74,4 +74,5 @@ void power_init_r(void);
void dieid_num_r(void);
void do_omap3_emu_romcode_call(u32 service_id, u32 parameters);
void omap3_gp_romcode_call(u32 service_id, u32 parameter);
+u32 warm_reset(void);
#endif
diff --git a/arch/arm/include/asm/arch-omap4/cpu.h b/arch/arm/include/asm/arch-omap4/cpu.h
index feddb7de5..a8c4c60c8 100644
--- a/arch/arm/include/asm/arch-omap4/cpu.h
+++ b/arch/arm/include/asm/arch-omap4/cpu.h
@@ -178,5 +178,7 @@ struct watchdog {
#define PRM_RSTCTRL PRM_DEVICE_BASE
#define PRM_RSTCTRL_RESET 0x01
+#define PRM_RSTST (PRM_DEVICE_BASE + 0x4)
+#define PRM_RSTST_WARM_RESET_MASK 0x07EA
#endif /* _CPU_H */
diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h
index c6e3ad26f..4f0a29da7 100644
--- a/arch/arm/include/asm/arch-omap4/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap4/sys_proto.h
@@ -57,6 +57,7 @@ void init_omap_revision(void);
void do_io_settings(void);
void omap_vc_init(u16 speed_khz);
int omap_vc_bypass_send_value(u8 sa, u8 reg_addr, u8 reg_data);
+u32 warm_reset(void);
/*
* This is used to verify if the configuration header
* was executed by Romcode prior to control of transfer
diff --git a/arch/arm/include/asm/arch-omap5/cpu.h b/arch/arm/include/asm/arch-omap5/cpu.h
index 8ef17c9a1..5e6201323 100644
--- a/arch/arm/include/asm/arch-omap5/cpu.h
+++ b/arch/arm/include/asm/arch-omap5/cpu.h
@@ -182,5 +182,7 @@ struct watchdog {
#define PRM_RSTCTRL PRM_DEVICE_BASE
#define PRM_RSTCTRL_RESET 0x01
+#define PRM_RSTST (PRM_DEVICE_BASE + 0x4)
+#define PRM_RSTST_WARM_RESET_MASK 0x7FEA
#endif /* _CPU_H */
diff --git a/arch/arm/include/asm/arch-omap5/sys_proto.h b/arch/arm/include/asm/arch-omap5/sys_proto.h
index 8396a2214..b3bbdb7cd 100644
--- a/arch/arm/include/asm/arch-omap5/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap5/sys_proto.h
@@ -57,6 +57,7 @@ void init_omap_revision(void);
void do_io_settings(void);
void omap_vc_init(u16 speed_khz);
int omap_vc_bypass_send_value(u8 sa, u8 reg_addr, u8 reg_data);
+u32 warm_reset(void);
/*
* This is used to verify if the configuration header