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authorNishanth Menon <nm@ti.com>2014-01-20 14:06:37 -0600
committerOlof Johansson <olof@lixom.net>2014-01-31 14:57:37 -0800
commitde70af494c468c107eedf90090eb74d6ccf30c4c (patch)
tree3aee0707c7fe9a0ba0844377dd883880f952446a /arch/arm
parent74ed7bdcb41d32c7628c3bd1478b076e5b1ad8a4 (diff)
downloadlinux-de70af494c468c107eedf90090eb74d6ccf30c4c.tar.bz2
ARM: OMAP4+: move errata initialization to omap4_pm_init_early
Move all OMAP4 PM errata initializations to centralized location in omap4_pm_init_early. This allows for users to utilize the erratas in various submodules as needed. Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-omap2/common.h6
-rw-r--r--arch/arm/mach-omap2/io.c1
-rw-r--r--arch/arm/mach-omap2/omap-smp.c6
-rw-r--r--arch/arm/mach-omap2/pm44xx.c15
4 files changed, 23 insertions, 5 deletions
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 3adaa1d5cd10..a6aae300542c 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -62,11 +62,17 @@ static inline int omap3_pm_init(void)
#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP4)
int omap4_pm_init(void);
+int omap4_pm_init_early(void);
#else
static inline int omap4_pm_init(void)
{
return 0;
}
+
+static inline int omap4_pm_init_early(void)
+{
+ return 0;
+}
#endif
#ifdef CONFIG_OMAP_MUX
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 47381fd8746f..d408b15b4fbf 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -641,6 +641,7 @@ void __init omap4430_init_early(void)
omap_cm_base_init();
omap4xxx_check_revision();
omap4xxx_check_features();
+ omap4_pm_init_early();
omap44xx_prm_init();
omap44xx_voltagedomains_init();
omap44xx_powerdomains_init();
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index 75e95d4fb448..17550aa39d0f 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -39,8 +39,6 @@
#define OMAP5_CORE_COUNT 0x2
-u16 pm44xx_errata;
-
/* SCU base address */
static void __iomem *scu_base;
@@ -217,10 +215,8 @@ static void __init omap4_smp_prepare_cpus(unsigned int max_cpus)
if (scu_base)
scu_enable(scu_base);
- if (cpu_is_omap446x()) {
+ if (cpu_is_omap446x())
startup_addr = omap4460_secondary_startup;
- pm44xx_errata |= PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD;
- }
/*
* Write the address of secondary startup routine into the
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index 82f0698933d8..eefb30cfcabd 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -24,6 +24,8 @@
#include "powerdomain.h"
#include "pm.h"
+u16 pm44xx_errata;
+
struct power_state {
struct powerdomain *pwrdm;
u32 next_state;
@@ -199,6 +201,19 @@ static inline int omap4_init_static_deps(void)
}
/**
+ * omap4_pm_init_early - Does early initialization necessary for OMAP4+ devices
+ *
+ * Initializes basic stuff for power management functionality.
+ */
+int __init omap4_pm_init_early(void)
+{
+ if (cpu_is_omap446x())
+ pm44xx_errata |= PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD;
+
+ return 0;
+}
+
+/**
* omap4_pm_init - Init routine for OMAP4+ devices
*
* Initializes all powerdomain and clockdomain target states