[PATCHv3 9/9] ARM: OMAP2+: AM33XX: Hookup AM33XX PM code into OMAP builds
Dave Gerlach
d-gerlach at ti.com
Tue Aug 6 13:49:36 EDT 2013
From: Vaibhav Bedia <vaibhav.bedia at ti.com>
With all the requisite changes in place we can now
enable the basic PM support for AM335x. This patch
updates the various OMAP files to enable suspend-resume
on AM335x.
Signed-off-by: Vaibhav Bedia <vaibhav.bedia at ti.com>
Signed-off-by: Dave Gerlach <d-gerlach at ti.com>
---
arch/arm/mach-omap2/Kconfig | 7 +++++--
arch/arm/mach-omap2/Makefile | 2 ++
arch/arm/mach-omap2/board-generic.c | 1 +
arch/arm/mach-omap2/common.h | 10 ++++++++++
arch/arm/mach-omap2/io.c | 5 +++++
arch/arm/mach-omap2/pm.c | 3 ++-
arch/arm/mach-omap2/pm.h | 5 +++++
arch/arm/mach-omap2/sram.c | 10 +++++++++-
arch/arm/mach-omap2/sram.h | 2 ++
9 files changed, 41 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 3eed000..ef3fe40 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -67,11 +67,14 @@ config SOC_OMAP5
config SOC_AM33XX
bool "AM33XX support"
depends on ARCH_MULTI_V7
- select ARCH_OMAP2PLUS
+ default y
select ARM_CPU_SUSPEND if PM
+ select COMMON_CLK
select CPU_V7
+ select MAILBOX if PM
select MULTI_IRQ_HANDLER
- select COMMON_CLK
+ select OMAP_MBOX_FWK if PM
+ select OMAP2PLUS_MBOX if PM
config SOC_AM43XX
bool "TI AM43x"
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index d4f6715..eb3a47a 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -87,6 +87,7 @@ obj-$(CONFIG_ARCH_OMAP2) += sleep24xx.o
obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o
obj-$(CONFIG_ARCH_OMAP4) += pm44xx.o omap-mpuss-lowpower.o
obj-$(CONFIG_SOC_OMAP5) += omap-mpuss-lowpower.o
+obj-$(CONFIG_SOC_AM33XX) += pm33xx.o sleep33xx.o wkup_m3.o
obj-$(CONFIG_PM_DEBUG) += pm-debug.o
obj-$(CONFIG_POWER_AVS_OMAP) += sr_device.o
@@ -94,6 +95,7 @@ obj-$(CONFIG_POWER_AVS_OMAP_CLASS3) += smartreflex-class3.o
AFLAGS_sleep24xx.o :=-Wa,-march=armv6
AFLAGS_sleep34xx.o :=-Wa,-march=armv7-a$(plus_sec)
+AFLAGS_sleep33xx.o :=-Wa,-march=armv7-a$(plus_sec)
endif
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index aed750c..3f2d6a7 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -159,6 +159,7 @@ DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
.reserve = am33xx_reserve,
.map_io = am33xx_map_io,
.init_early = am33xx_init_early,
+ .init_late = am33xx_init_late,
.init_irq = omap_intc_of_init,
.handle_irq = omap3_intc_handle_irq,
.init_machine = omap_generic_init,
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 6b8ef74..80bf0da 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -69,6 +69,15 @@ static inline int omap4_pm_init(void)
}
#endif
+#if defined(CONFIG_PM) && defined(CONFIG_SOC_AM33XX)
+int am33xx_pm_init(void);
+#else
+static inline int am33xx_pm_init(void)
+{
+ return 0;
+}
+#endif
+
#ifdef CONFIG_OMAP_MUX
int omap_mux_late_init(void);
#else
@@ -107,6 +116,7 @@ void omap2430_init_late(void);
void omap3430_init_late(void);
void omap35xx_init_late(void);
void omap3630_init_late(void);
+void am33xx_init_late(void);
void am35xx_init_late(void);
void ti81xx_init_late(void);
int omap2_common_pm_late_init(void);
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 3ad7543..63516e5 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -584,6 +584,11 @@ void __init am33xx_init_early(void)
omap_hwmod_init_postsetup();
omap_clk_init = am33xx_clk_init;
}
+
+void __init am33xx_init_late(void)
+{
+ am33xx_pm_init();
+}
#endif
#ifdef CONFIG_SOC_AM43XX
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index e742118..f8bd883 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -305,7 +305,8 @@ int __init omap2_common_pm_late_init(void)
}
#ifdef CONFIG_SUSPEND
- suspend_set_ops(&omap_pm_ops);
+ if (!soc_is_am33xx())
+ suspend_set_ops(&omap_pm_ops);
#endif
return 0;
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 7bdd22a..5122bb6 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -82,6 +82,11 @@ extern unsigned int omap3_do_wfi_sz;
/* ... and its pointer from SRAM after copy */
extern void (*omap3_do_wfi_sram)(void);
+/* am33xx_do_wfi function pointer and size, for copy to SRAM */
+extern void am33xx_do_wfi(void);
+extern unsigned int am33xx_do_wfi_sz;
+extern unsigned int am33xx_resume_offset;
+
/* save_secure_ram_context function pointer and size, for copy to SRAM */
extern int save_secure_ram_context(u32 *addr);
extern unsigned int save_secure_ram_context_sz;
diff --git a/arch/arm/mach-omap2/sram.c b/arch/arm/mach-omap2/sram.c
index 4bd0968..303c562 100644
--- a/arch/arm/mach-omap2/sram.c
+++ b/arch/arm/mach-omap2/sram.c
@@ -154,7 +154,7 @@ static void __init omap2_map_sram(void)
omap_sram_size -= SZ_16K;
}
#endif
- if (cpu_is_omap34xx()) {
+ if (cpu_is_omap34xx() || soc_is_am33xx()) {
/*
* SRAM must be marked as non-cached on OMAP3 since the
* CORE DPLL M2 divider change code (in SRAM) runs with the
@@ -285,10 +285,18 @@ static inline int omap34xx_sram_init(void)
}
#endif /* CONFIG_ARCH_OMAP3 */
+#ifdef CONFIG_SOC_AM33XX
static inline int am33xx_sram_init(void)
{
+ am33xx_push_sram_idle();
return 0;
}
+#else
+static inline int am33xx_sram_init(void)
+{
+ return 0;
+}
+#endif
int __init omap_sram_init(void)
{
diff --git a/arch/arm/mach-omap2/sram.h b/arch/arm/mach-omap2/sram.h
index ca7277c..24788b5 100644
--- a/arch/arm/mach-omap2/sram.h
+++ b/arch/arm/mach-omap2/sram.h
@@ -62,8 +62,10 @@ extern unsigned long omap3_sram_configure_core_dpll_sz;
#ifdef CONFIG_PM
extern void omap_push_sram_idle(void);
+extern void am33xx_push_sram_idle(void);
#else
static inline void omap_push_sram_idle(void) {}
+static inline void am33xx_push_sram_idle(void) {}
#endif /* CONFIG_PM */
#endif /* __ASSEMBLY__ */
--
1.7.9.5
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