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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-11 09:13:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-11 09:13:19 -0700
commit636d17427b1ef0e97bd9df9b3b0e0f314ff889d3 (patch)
treef573602c1a78e9140c36e220c47675b79af1c270 /arch/arm/mach-s5pv310/cpu.c
parentdd21e9bdff14a9882f2c485fe533c6ce64ea2675 (diff)
parent0b019a41553a919965bb02d07d54e3e6c57a796d (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (226 commits) ARM: 6323/1: cam60: don't use __init for cam60_spi_{flash_platform_data,partitions} ARM: 6324/1: cam60: move cam60_spi_devices to .init.data ARM: 6322/1: imx/pca100: Fix name of spi platform data ARM: 6321/1: fix syntax error in main Kconfig file ARM: 6297/1: move U300 timer to dynamic clock lookup ARM: 6296/1: clock U300 intcon and timer properly ARM: 6295/1: fix U300 apb_pclk split ARM: 6306/1: fix inverted MMC card detect in U300 ARM: 6299/1: errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID ARM: 6294/1: etm: do a dummy read from OSSRR during initialization ARM: 6292/1: coresight: add ETM management registers ARM: 6288/1: ftrace: document mcount formats ARM: 6287/1: ftrace: clean up mcount assembly indentation ARM: 6286/1: fix Thumb-2 decompressor broken by "Auto calculate ZRELADDR" ARM: 6281/1: video/imxfb.c: allow usage without BACKLIGHT_CLASS_DEVICE ARM: 6280/1: imx: Fix build failure when including <mach/gpio.h> without <linux/spinlock.h> ARM: S5PV210: Fix on missing s3c-sdhci card detection method for hsmmc3 ARM: S5P: Fix on missing S5P_DEV_FIMC in plat-s5p/Kconfig ARM: S5PV210: Override FIMC driver name on Aquila board ARM: S5PC100: enable FIMC on SMDKC100 ... Fix up conflicts in arch/arm/mach-{s5pc100,s5pv210}/cpu.c due to different subsystem 'setname' calls, and trivial port types in include/linux/serial_core.h
Diffstat (limited to 'arch/arm/mach-s5pv310/cpu.c')
-rw-r--r--arch/arm/mach-s5pv310/cpu.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pv310/cpu.c b/arch/arm/mach-s5pv310/cpu.c
new file mode 100644
index 00000000000..196c9f12ed8
--- /dev/null
+++ b/arch/arm/mach-s5pv310/cpu.c
@@ -0,0 +1,122 @@
+/* linux/arch/arm/mach-s5pv310/cpu.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/sched.h>
+#include <linux/sysdev.h>
+
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/proc-fns.h>
+
+#include <plat/cpu.h>
+#include <plat/clock.h>
+#include <plat/s5pv310.h>
+
+#include <mach/regs-irq.h>
+
+void __iomem *gic_cpu_base_addr;
+
+extern int combiner_init(unsigned int combiner_nr, void __iomem *base,
+ unsigned int irq_start);
+extern void combiner_cascade_irq(unsigned int combiner_nr, unsigned int irq);
+
+/* Initial IO mappings */
+static struct map_desc s5pv310_iodesc[] __initdata = {
+ {
+ .virtual = (unsigned long)S5P_VA_COREPERI_BASE,
+ .pfn = __phys_to_pfn(S5PV310_PA_COREPERI),
+ .length = SZ_8K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = (unsigned long)S5P_VA_COMBINER_BASE,
+ .pfn = __phys_to_pfn(S5PV310_PA_COMBINER),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = (unsigned long)S5P_VA_L2CC,
+ .pfn = __phys_to_pfn(S5PV310_PA_L2CC),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+};
+
+static void s5pv310_idle(void)
+{
+ if (!need_resched())
+ cpu_do_idle();
+
+ local_irq_enable();
+}
+
+/* s5pv310_map_io
+ *
+ * register the standard cpu IO areas
+*/
+void __init s5pv310_map_io(void)
+{
+ iotable_init(s5pv310_iodesc, ARRAY_SIZE(s5pv310_iodesc));
+}
+
+void __init s5pv310_init_clocks(int xtal)
+{
+ printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
+
+ s3c24xx_register_baseclocks(xtal);
+ s5p_register_clocks(xtal);
+ s5pv310_register_clocks();
+ s5pv310_setup_clocks();
+}
+
+void __init s5pv310_init_irq(void)
+{
+ int irq;
+
+ gic_cpu_base_addr = S5P_VA_GIC_CPU;
+ gic_dist_init(0, S5P_VA_GIC_DIST, IRQ_LOCALTIMER);
+ gic_cpu_init(0, S5P_VA_GIC_CPU);
+
+ for (irq = 0; irq < MAX_COMBINER_NR; irq++) {
+ combiner_init(irq, (void __iomem *)S5P_VA_COMBINER(irq),
+ COMBINER_IRQ(irq, 0));
+ combiner_cascade_irq(irq, IRQ_SPI(irq));
+ }
+
+ /* The parameters of s5p_init_irq() are for VIC init.
+ * Theses parameters should be NULL and 0 because S5PV310
+ * uses GIC instead of VIC.
+ */
+ s5p_init_irq(NULL, 0);
+}
+
+struct sysdev_class s5pv310_sysclass = {
+ .name = "s5pv310-core",
+};
+
+static struct sys_device s5pv310_sysdev = {
+ .cls = &s5pv310_sysclass,
+};
+
+static int __init s5pv310_core_init(void)
+{
+ return sysdev_class_register(&s5pv310_sysclass);
+}
+
+core_initcall(s5pv310_core_init);
+
+int __init s5pv310_init(void)
+{
+ printk(KERN_INFO "S5PV310: Initializing architecture\n");
+
+ /* set idle function */
+ pm_idle = s5pv310_idle;
+
+ return sysdev_register(&s5pv310_sysdev);
+}