From de70af494c468c107eedf90090eb74d6ccf30c4c Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Mon, 20 Jan 2014 14:06:37 -0600
Subject: [PATCH] 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>
---
arch/arm/mach-omap2/common.h | 6 ++++++
arch/arm/mach-omap2/io.c | 1 +
arch/arm/mach-omap2/omap-smp.c | 6 +-----
arch/arm/mach-omap2/pm44xx.c | 15 +++++++++++++++
4 files changed, 23 insertions(+), 5 deletions(-)
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 3adaa1d5cd108f..a6aae300542cd8 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 47381fd8746f6f..d408b15b4fbfd9 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 75e95d4fb448cd..17550aa39d0f39 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 82f0698933d85a..eefb30cfcabdae 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;
@@ -198,6 +200,19 @@ static inline int omap4_init_static_deps(void)
return ret;
}
+/**
+ * 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
*
--
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