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Commit 97b129be authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

Merge branch 'soc4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc2 

Its a little embarrassing, but they all fix problems introduced
in previous pull-requests for 3.8 that have been merged.

* The three Revert patches back-out secondary CPU initialisation
  changes from Bastian Hecht which he as advised me are incorrect
  and break secondary CPU initialisation.

* The clkfwk patch from Morimoto-san resolves a build warning.

* 'soc4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas

:
  sh: clkfwk: fixup unsed variable warning
  Revert "ARM: shmobile: r8a7779: Replace modify_scu_cpu_psr with scu_power_mode"
  Revert "ARM: shmobile: sh73a0: Replace modify_scu_cpu_psr with scu_power_mode"
  Revert "ARM: shmobile: emev2: Replace modify_scu_cpu_psr with scu_power_mode"

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parents 9e0c6b1f 94091c6b

arch/arm/mach-shmobile/smp-emev2.c

+20 −2
Original line number Diff line number Diff line
@@ -32,8 +32,24 @@ 


#define EMEV2_SCU_BASE 0x1e000000



static DEFINE_SPINLOCK(scu_lock);

static void __iomem *scu_base;



static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)

{

	unsigned long tmp;



	/* we assume this code is running on a different cpu

	 * than the one that is changing coherency setting */

	spin_lock(&scu_lock);

	tmp = readl(scu_base + 8);

	tmp &= ~clr;

	tmp |= set;

	writel(tmp, scu_base + 8);

	spin_unlock(&scu_lock);



}



static unsigned int __init emev2_get_core_count(void)

{

	if (!scu_base) {
@@ -79,7 +95,7 @@ static int __cpuinit emev2_boot_secondary(unsigned int cpu, struct task_struct * 
	cpu = cpu_logical_map(cpu);



	/* enable cache coherency */

	scu_power_mode(scu_base, 0);

	modify_scu_cpu_psr(0, 3 << (cpu * 8));



	/* Tell ROM loader about our vector (in headsmp.S) */

	emev2_set_boot_vector(__pa(shmobile_secondary_vector));
@@ -90,10 +106,12 @@ static int __cpuinit emev2_boot_secondary(unsigned int cpu, struct task_struct * 


static void __init emev2_smp_prepare_cpus(unsigned int max_cpus)

{

	int cpu = cpu_logical_map(0);



	scu_enable(scu_base);



	/* enable cache coherency on CPU0 */

	scu_power_mode(scu_base, 0);

	modify_scu_cpu_psr(0, 3 << (cpu * 8));

}



static void __init emev2_smp_init_cpus(void)

arch/arm/mach-shmobile/smp-r8a7779.c

+22 −3
Original line number Diff line number Diff line
@@ -61,6 +61,9 @@ static void __iomem *scu_base_addr(void) 
	return (void __iomem *)0xf0000000;

}



static DEFINE_SPINLOCK(scu_lock);

static unsigned long tmp;



#ifdef CONFIG_HAVE_ARM_TWD

static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, 0xf0000600, 29);
@@ -70,6 +73,20 @@ void __init r8a7779_register_twd(void) 
}

#endif



static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)

{

	void __iomem *scu_base = scu_base_addr();



	spin_lock(&scu_lock);

	tmp = __raw_readl(scu_base + 8);

	tmp &= ~clr;

	tmp |= set;

	spin_unlock(&scu_lock);



	/* disable cache coherency after releasing the lock */

	__raw_writel(tmp, scu_base + 8);

}



static unsigned int __init r8a7779_get_core_count(void)

{

	void __iomem *scu_base = scu_base_addr();
@@ -85,7 +102,7 @@ static int r8a7779_platform_cpu_kill(unsigned int cpu) 
	cpu = cpu_logical_map(cpu);



	/* disable cache coherency */

	scu_power_mode(scu_base_addr(), 3);

	modify_scu_cpu_psr(3 << (cpu * 8), 0);



	if (cpu < ARRAY_SIZE(r8a7779_ch_cpu))

		ch = r8a7779_ch_cpu[cpu];
@@ -128,7 +145,7 @@ static int __cpuinit r8a7779_boot_secondary(unsigned int cpu, struct task_struct 
	cpu = cpu_logical_map(cpu);



	/* enable cache coherency */

	scu_power_mode(scu_base_addr(), 0);

	modify_scu_cpu_psr(0, 3 << (cpu * 8));



	if (cpu < ARRAY_SIZE(r8a7779_ch_cpu))

		ch = r8a7779_ch_cpu[cpu];
@@ -141,13 +158,15 @@ static int __cpuinit r8a7779_boot_secondary(unsigned int cpu, struct task_struct 


static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus)

{

	int cpu = cpu_logical_map(0);



	scu_enable(scu_base_addr());



	/* Map the reset vector (in headsmp.S) */

	__raw_writel(__pa(shmobile_secondary_vector), AVECR);



	/* enable cache coherency on CPU0 */

	scu_power_mode(scu_base_addr(), 0);

	modify_scu_cpu_psr(0, 3 << (cpu * 8));



	r8a7779_pm_init();

arch/arm/mach-shmobile/smp-sh73a0.c

+21 −2
Original line number Diff line number Diff line
@@ -41,6 +41,9 @@ static void __iomem *scu_base_addr(void) 
	return (void __iomem *)0xf0000000;

}



static DEFINE_SPINLOCK(scu_lock);

static unsigned long tmp;



#ifdef CONFIG_HAVE_ARM_TWD

static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, 0xf0000600, 29);

void __init sh73a0_register_twd(void)
@@ -49,6 +52,20 @@ void __init sh73a0_register_twd(void) 
}

#endif



static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)

{

	void __iomem *scu_base = scu_base_addr();



	spin_lock(&scu_lock);

	tmp = __raw_readl(scu_base + 8);

	tmp &= ~clr;

	tmp |= set;

	spin_unlock(&scu_lock);



	/* disable cache coherency after releasing the lock */

	__raw_writel(tmp, scu_base + 8);

}



static unsigned int __init sh73a0_get_core_count(void)

{

	void __iomem *scu_base = scu_base_addr();
@@ -66,7 +83,7 @@ static int __cpuinit sh73a0_boot_secondary(unsigned int cpu, struct task_struct 
	cpu = cpu_logical_map(cpu);



	/* enable cache coherency */

	scu_power_mode(scu_base_addr(), 0);

	modify_scu_cpu_psr(0, 3 << (cpu * 8));



	if (((__raw_readl(PSTR) >> (4 * cpu)) & 3) == 3)

		__raw_writel(1 << cpu, WUPCR);	/* wake up */
@@ -78,6 +95,8 @@ static int __cpuinit sh73a0_boot_secondary(unsigned int cpu, struct task_struct 


static void __init sh73a0_smp_prepare_cpus(unsigned int max_cpus)

{

	int cpu = cpu_logical_map(0);



	scu_enable(scu_base_addr());



	/* Map the reset vector (in headsmp.S) */
@@ -85,7 +104,7 @@ static void __init sh73a0_smp_prepare_cpus(unsigned int max_cpus) 
	__raw_writel(__pa(shmobile_secondary_vector), SBAR);



	/* enable cache coherency on CPU0 */

	scu_power_mode(scu_base_addr(), 0);

	modify_scu_cpu_psr(0, 3 << (cpu * 8));

}



static void __init sh73a0_smp_init_cpus(void)

drivers/sh/clk/cpg.c

+0 −1
Original line number Diff line number Diff line
@@ -401,7 +401,6 @@ static int fsidiv_enable(struct clk *clk) 


static int fsidiv_set_rate(struct clk *clk, unsigned long rate)

{

	u32 val;

	int idx;



	idx = (clk->parent->rate / rate) & 0xffff;