ARM: omap2+: make omap4_get_cpu1_ns_pa_addr declaration usable

When CONFIG_PM is disabled, we get a build error:

arch/arm/mach-omap2/omap-smp.c: In function 'omap4_smp_maybe_reset_cpu1':
arch/arm/mach-omap2/omap-smp.c:309:20: error: implicit declaration of function 'omap4_get_cpu1_ns_pa_addr'; did you mean 'omap4_get_scu_base'? [-Werror=implicit-function-declaration]

We need to fix this in multiple files, to ensure the declaration is visible,
to actually build the function without CONFIG_PM, and to only call it
when OMAP4 and/or OMAP5 are enabled.

Fixes: 351b7c490700 ("ARM: omap2+: Revert omap-smp.c changes resetting CPU1 during boot")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 3089d3bfa19b4a5c595e6872824c81f103d4c5e2..8cc6338fcb1288022854d7bb3347b9e000139c76 100644 (file)
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -266,11 +266,12 @@ extern int omap4_cpu_kill(unsigned int cpu);
 extern const struct smp_operations omap4_smp_ops;
 #endif
 
+extern u32 omap4_get_cpu1_ns_pa_addr(void);
+
 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
 extern int omap4_mpuss_init(void);
 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
-extern u32 omap4_get_cpu1_ns_pa_addr(void);
 #else
 static inline int omap4_enter_lowpower(unsigned int cpu,
                                        unsigned int power_state)

diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
index 03ec6d307c8235fc907a599322991b1efd6c27bf..4cfc4f9b2c6944d935d210190a0afb99b1b0c816 100644 (file)
--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -213,11 +213,6 @@ static void __init save_l2x0_context(void)
 {}
 #endif
 
-u32 omap4_get_cpu1_ns_pa_addr(void)
-{
-       return old_cpu1_ns_pa_addr;
-}
-
 /**
  * omap4_enter_lowpower: OMAP4 MPUSS Low Power Entry Function
  * The purpose of this function is to manage low power programming
@@ -457,6 +452,11 @@ int __init omap4_mpuss_init(void)
 
 #endif
 
+u32 omap4_get_cpu1_ns_pa_addr(void)
+{
+       return old_cpu1_ns_pa_addr;
+}
+
 /*
  * For kexec, we must set CPU1_WAKEUP_NS_PA_ADDR to point to
  * current kernel's secondary_startup() early before

diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index 3faf454ba4871c8f60d5e12e912a1ff9dd9af271..33e4953c61a8843b5dde41994b30ea41c52a0abf 100644 (file)
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -306,7 +306,6 @@ static void __init omap4_smp_maybe_reset_cpu1(struct omap_smp_config *c)
 
        cpu1_startup_pa = readl_relaxed(cfg.wakeupgen_base +
                                        OMAP_AUX_CORE_BOOT_1);
-       cpu1_ns_pa_addr = omap4_get_cpu1_ns_pa_addr();
 
        /* Did the configured secondary_startup() get overwritten? */
        if (!omap4_smp_cpu1_startup_valid(cpu1_startup_pa))
@@ -316,9 +315,13 @@ static void __init omap4_smp_maybe_reset_cpu1(struct omap_smp_config *c)
         * If omap4 or 5 has NS_PA_ADDR configured, CPU1 may be in a
         * deeper idle state in WFI and will wake to an invalid address.
         */
-       if ((soc_is_omap44xx() || soc_is_omap54xx()) &&
-           !omap4_smp_cpu1_startup_valid(cpu1_ns_pa_addr))
-               needs_reset = true;
+       if ((soc_is_omap44xx() || soc_is_omap54xx())) {
+               cpu1_ns_pa_addr = omap4_get_cpu1_ns_pa_addr();
+               if (!omap4_smp_cpu1_startup_valid(cpu1_ns_pa_addr))
+                       needs_reset = true;
+       } else {
+               cpu1_ns_pa_addr = 0;
+       }
 
        if (!needs_reset || !c->cpu1_rstctrl_va)
                return;