From 2d6dd1711346d1708eacdbb1b5e8a5a573562fd1 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 14 May 2015 09:20:23 +0200 Subject: ARM: ux500: remove static maps from platsmp This removes the reliance on static maps for SCU and backupram for the SMP startup of the Ux500 SoC. Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/platsmp.c | 28 +++++++--------------------- 1 file changed, 7 insertions(+), 21 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c index a44967f3168c..1e13d0a8ad77 100644 --- a/arch/arm/mach-ux500/platsmp.c +++ b/arch/arm/mach-ux500/platsmp.c @@ -26,6 +26,9 @@ #include "db8500-regs.h" #include "id.h" +static void __iomem *scu_base; +static void __iomem *backupram; + /* This is called from headsmp.S to wakeup the secondary core */ extern void u8500_secondary_startup(void); @@ -41,16 +44,6 @@ static void write_pen_release(int val) sync_cache_w(&pen_release); } -static void __iomem *scu_base_addr(void) -{ - if (cpu_is_u8500_family() || cpu_is_ux540_family()) - return __io_address(U8500_SCU_BASE); - else - ux500_unknown_soc(); - - return NULL; -} - static DEFINE_SPINLOCK(boot_lock); static void ux500_secondary_init(unsigned int cpu) @@ -104,13 +97,6 @@ static int ux500_boot_secondary(unsigned int cpu, struct task_struct *idle) static void __init wakeup_secondary(void) { - void __iomem *backupram; - - if (cpu_is_u8500_family() || cpu_is_ux540_family()) - backupram = __io_address(U8500_BACKUPRAM0_BASE); - else - ux500_unknown_soc(); - /* * write the address of secondary startup into the backup ram register * at offset 0x1FF4, then write the magic number 0xA1FEED01 to the @@ -135,10 +121,11 @@ static void __init wakeup_secondary(void) */ static void __init ux500_smp_init_cpus(void) { - void __iomem *scu_base = scu_base_addr(); unsigned int i, ncores; - ncores = scu_base ? scu_get_core_count(scu_base) : 1; + scu_base = ioremap(U8500_SCU_BASE, 0x100); + backupram = ioremap(U8500_BACKUPRAM0_BASE, SZ_8K); + ncores = scu_get_core_count(scu_base); /* sanity check */ if (ncores > nr_cpu_ids) { @@ -153,8 +140,7 @@ static void __init ux500_smp_init_cpus(void) static void __init ux500_smp_prepare_cpus(unsigned int max_cpus) { - - scu_enable(scu_base_addr()); + scu_enable(scu_base); wakeup_secondary(); } -- cgit