diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-02 16:38:16 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-02 16:38:16 (GMT) |
commit | 99c6bcf46d2233d33e441834e958ed0bc22b190a (patch) | |
tree | 25abf5e856bc0f08d75e623715eb5acc4d4de2b2 /arch/arm/mach-prima2 | |
parent | 97b1007a2924aaa9126398623f6755a8c3c6a616 (diff) | |
parent | 2fdfe1c26fb9f24cfdf124384abb35396ca2cd3f (diff) | |
download | linux-99c6bcf46d2233d33e441834e958ed0bc22b190a.tar.xz |
Merge tag 'multiplatform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC multiplatform updates from Olof Johansson:
"More multiplatform enablement for ARM platforms. The ones converted
in this branch are:
- bcm2835
- cns3xxx
- sirf
- nomadik
- msx
- spear
- tegra
- ux500
We're getting close to having most of them converted!
One of the larger platforms remaining is Samsung Exynos, and there are
a bunch of supporting patches in this merge window for it. There was
a patch in this branch to a early version of multiplatform conversion,
but it ended up being reverted due to need of more bake time. The
revert commit is part of the branch since it would have required
rebasing multiple dependent branches and they were stable by then"
* tag 'multiplatform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits)
mmc: sdhci-s3c: Fix operation on non-single image Samsung platforms
clocksource: nomadik-mtu: fix up clocksource/timer
Revert "ARM: exynos: enable multiplatform support"
ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ"
ARM: exynos: enable multiplatform support
rtc: s3c: make header file local
mtd: onenand/samsung: make regs-onenand.h file local
thermal/exynos: remove unnecessary header inclusions
mmc: sdhci-s3c: remove platform dependencies
ARM: samsung: move mfc device definition to s5p-dev-mfc.c
ARM: exynos: move debug-macro.S to include/debug/
ARM: exynos: prepare for sparse IRQ
ARM: exynos: introduce EXYNOS_ATAGS symbol
ARM: tegra: build assembly files with -march=armv7-a
ARM: Push selects for TWD/SCU into machine entries
ARM: ux500: build hotplug.o for ARMv7-a
ARM: ux500: move to multiplatform
ARM: ux500: make remaining headers local
ARM: ux500: make irqs.h local to platform
ARM: ux500: get rid of <mach/[hardware|db8500-regs].h>
...
Diffstat (limited to 'arch/arm/mach-prima2')
-rw-r--r-- | arch/arm/mach-prima2/Kconfig | 13 | ||||
-rw-r--r-- | arch/arm/mach-prima2/Makefile | 5 | ||||
-rw-r--r-- | arch/arm/mach-prima2/common.c | 26 | ||||
-rw-r--r-- | arch/arm/mach-prima2/common.h | 4 | ||||
-rw-r--r-- | arch/arm/mach-prima2/include/mach/clkdev.h | 15 | ||||
-rw-r--r-- | arch/arm/mach-prima2/include/mach/debug-macro.S | 29 | ||||
-rw-r--r-- | arch/arm/mach-prima2/include/mach/entry-macro.S | 22 | ||||
-rw-r--r-- | arch/arm/mach-prima2/include/mach/hardware.h | 15 | ||||
-rw-r--r-- | arch/arm/mach-prima2/include/mach/irqs.h | 17 | ||||
-rw-r--r-- | arch/arm/mach-prima2/include/mach/map.h | 18 | ||||
-rw-r--r-- | arch/arm/mach-prima2/include/mach/timex.h | 14 | ||||
-rw-r--r-- | arch/arm/mach-prima2/include/mach/uart.h | 29 | ||||
-rw-r--r-- | arch/arm/mach-prima2/include/mach/uncompress.h | 41 | ||||
-rw-r--r-- | arch/arm/mach-prima2/irq.c | 129 | ||||
-rw-r--r-- | arch/arm/mach-prima2/lluart.c | 14 | ||||
-rw-r--r-- | arch/arm/mach-prima2/platsmp.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-prima2/timer-marco.c | 316 | ||||
-rw-r--r-- | arch/arm/mach-prima2/timer-prima2.c | 241 |
18 files changed, 44 insertions, 905 deletions
diff --git a/arch/arm/mach-prima2/Kconfig b/arch/arm/mach-prima2/Kconfig index b3be799..80ca974 100644 --- a/arch/arm/mach-prima2/Kconfig +++ b/arch/arm/mach-prima2/Kconfig @@ -1,3 +1,15 @@ +config ARCH_SIRF + bool "CSR SiRF" if ARCH_MULTI_V7 + select ARCH_REQUIRE_GPIOLIB + select GENERIC_CLOCKEVENTS + select GENERIC_IRQ_CHIP + select MIGHT_HAVE_CACHE_L2X0 + select NO_IOPORT + select PINCTRL + select PINCTRL_SIRF + help + Support for CSR SiRFprimaII/Marco/Polo platforms + if ARCH_SIRF menu "CSR SiRF atlas6/primaII/Marco/Polo Specific Features" @@ -24,6 +36,7 @@ config ARCH_MARCO default y select ARM_GIC select CPU_V7 + select HAVE_ARM_SCU if SMP select HAVE_SMP select SMP_ON_UP help diff --git a/arch/arm/mach-prima2/Makefile b/arch/arm/mach-prima2/Makefile index bfe360c..7a6b4a3 100644 --- a/arch/arm/mach-prima2/Makefile +++ b/arch/arm/mach-prima2/Makefile @@ -4,8 +4,7 @@ obj-y += rtciobrg.o obj-$(CONFIG_DEBUG_LL) += lluart.o obj-$(CONFIG_CACHE_L2X0) += l2x0.o obj-$(CONFIG_SUSPEND) += pm.o sleep.o -obj-$(CONFIG_SIRF_IRQ) += irq.o obj-$(CONFIG_SMP) += platsmp.o headsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o -obj-$(CONFIG_ARCH_PRIMA2) += timer-prima2.o -obj-$(CONFIG_ARCH_MARCO) += timer-marco.o + +CFLAGS_hotplug.o += -march=armv7-a diff --git a/arch/arm/mach-prima2/common.c b/arch/arm/mach-prima2/common.c index 72efb4f..4f94cd8 100644 --- a/arch/arm/mach-prima2/common.c +++ b/arch/arm/mach-prima2/common.c @@ -6,6 +6,7 @@ * Licensed under GPLv2 or later. */ +#include <linux/clocksource.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/irqchip.h> @@ -31,6 +32,13 @@ void __init sirfsoc_init_late(void) sirfsoc_pm_init(); } +static __init void sirfsoc_init_time(void) +{ + /* initialize clocking early, we want to set the OS timer */ + sirfsoc_of_clk_init(); + clocksource_of_init(); +} + static __init void sirfsoc_map_io(void) { sirfsoc_map_lluart(); @@ -45,12 +53,10 @@ static const char *atlas6_dt_match[] __initdata = { DT_MACHINE_START(ATLAS6_DT, "Generic ATLAS6 (Flattened Device Tree)") /* Maintainer: Barry Song <baohua.song@csr.com> */ + .nr_irqs = 128, .map_io = sirfsoc_map_io, - .init_irq = sirfsoc_of_irq_init, - .init_time = sirfsoc_prima2_timer_init, -#ifdef CONFIG_MULTI_IRQ_HANDLER - .handle_irq = sirfsoc_handle_irq, -#endif + .init_irq = irqchip_init, + .init_time = sirfsoc_init_time, .init_machine = sirfsoc_mach_init, .init_late = sirfsoc_init_late, .dt_compat = atlas6_dt_match, @@ -66,12 +72,10 @@ static const char *prima2_dt_match[] __initdata = { DT_MACHINE_START(PRIMA2_DT, "Generic PRIMA2 (Flattened Device Tree)") /* Maintainer: Barry Song <baohua.song@csr.com> */ + .nr_irqs = 128, .map_io = sirfsoc_map_io, - .init_irq = sirfsoc_of_irq_init, - .init_time = sirfsoc_prima2_timer_init, -#ifdef CONFIG_MULTI_IRQ_HANDLER - .handle_irq = sirfsoc_handle_irq, -#endif + .init_irq = irqchip_init, + .init_time = sirfsoc_init_time, .dma_zone_size = SZ_256M, .init_machine = sirfsoc_mach_init, .init_late = sirfsoc_init_late, @@ -91,7 +95,7 @@ DT_MACHINE_START(MARCO_DT, "Generic MARCO (Flattened Device Tree)") .smp = smp_ops(sirfsoc_smp_ops), .map_io = sirfsoc_map_io, .init_irq = irqchip_init, - .init_time = sirfsoc_marco_timer_init, + .init_time = sirfsoc_init_time, .init_machine = sirfsoc_mach_init, .init_late = sirfsoc_init_late, .dt_compat = marco_dt_match, diff --git a/arch/arm/mach-prima2/common.h b/arch/arm/mach-prima2/common.h index b7c26b6..81135cd 100644 --- a/arch/arm/mach-prima2/common.h +++ b/arch/arm/mach-prima2/common.h @@ -13,8 +13,8 @@ #include <asm/mach/time.h> #include <asm/exception.h> -extern void sirfsoc_prima2_timer_init(void); -extern void sirfsoc_marco_timer_init(void); +#define SIRFSOC_VA_BASE _AC(0xFEC00000, UL) +#define SIRFSOC_VA(x) (SIRFSOC_VA_BASE + ((x) & 0x00FFF000)) extern struct smp_operations sirfsoc_smp_ops; extern void sirfsoc_secondary_startup(void); diff --git a/arch/arm/mach-prima2/include/mach/clkdev.h b/arch/arm/mach-prima2/include/mach/clkdev.h deleted file mode 100644 index 6693251..0000000 --- a/arch/arm/mach-prima2/include/mach/clkdev.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * arch/arm/mach-prima2/include/mach/clkdev.h - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#ifndef __MACH_CLKDEV_H -#define __MACH_CLKDEV_H - -#define __clk_get(clk) ({ 1; }) -#define __clk_put(clk) do { } while (0) - -#endif diff --git a/arch/arm/mach-prima2/include/mach/debug-macro.S b/arch/arm/mach-prima2/include/mach/debug-macro.S deleted file mode 100644 index cd97492..0000000 --- a/arch/arm/mach-prima2/include/mach/debug-macro.S +++ /dev/null @@ -1,29 +0,0 @@ -/* - * arch/arm/mach-prima2/include/mach/debug-macro.S - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#include <mach/hardware.h> -#include <mach/uart.h> - - .macro addruart, rp, rv, tmp - ldr \rp, =SIRFSOC_UART1_PA_BASE @ physical - ldr \rv, =SIRFSOC_UART1_VA_BASE @ virtual - .endm - - .macro senduart,rd,rx - str \rd, [\rx, #SIRFSOC_UART_TXFIFO_DATA] - .endm - - .macro busyuart,rd,rx - .endm - - .macro waituart,rd,rx -1001: ldr \rd, [\rx, #SIRFSOC_UART_TXFIFO_STATUS] - tst \rd, #SIRFSOC_UART1_TXFIFO_EMPTY - beq 1001b - .endm - diff --git a/arch/arm/mach-prima2/include/mach/entry-macro.S b/arch/arm/mach-prima2/include/mach/entry-macro.S deleted file mode 100644 index 86434e7..0000000 --- a/arch/arm/mach-prima2/include/mach/entry-macro.S +++ /dev/null @@ -1,22 +0,0 @@ -/* - * arch/arm/mach-prima2/include/mach/entry-macro.S - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#include <mach/hardware.h> - -#define SIRFSOC_INT_ID 0x38 - - .macro get_irqnr_preamble, base, tmp - ldr \base, =sirfsoc_intc_base - ldr \base, [\base] - .endm - - .macro get_irqnr_and_base, irqnr, irqstat, base, tmp - ldr \irqnr, [\base, #SIRFSOC_INT_ID] @ Get the highest priority irq - cmp \irqnr, #0x40 @ the irq num can't be larger than 0x3f - movges \irqnr, #0 - .endm diff --git a/arch/arm/mach-prima2/include/mach/hardware.h b/arch/arm/mach-prima2/include/mach/hardware.h deleted file mode 100644 index 105b969..0000000 --- a/arch/arm/mach-prima2/include/mach/hardware.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * arch/arm/mach-prima2/include/mach/hardware.h - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#ifndef __MACH_HARDWARE_H__ -#define __MACH_HARDWARE_H__ - -#include <asm/sizes.h> -#include <mach/map.h> - -#endif diff --git a/arch/arm/mach-prima2/include/mach/irqs.h b/arch/arm/mach-prima2/include/mach/irqs.h deleted file mode 100644 index b778a0f..0000000 --- a/arch/arm/mach-prima2/include/mach/irqs.h +++ /dev/null @@ -1,17 +0,0 @@ -/* - * arch/arm/mach-prima2/include/mach/irqs.h - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#ifndef __ASM_ARCH_IRQS_H -#define __ASM_ARCH_IRQS_H - -#define SIRFSOC_INTENAL_IRQ_START 0 -#define SIRFSOC_INTENAL_IRQ_END 127 -#define SIRFSOC_GPIO_IRQ_START (SIRFSOC_INTENAL_IRQ_END + 1) -#define NR_IRQS 288 - -#endif diff --git a/arch/arm/mach-prima2/include/mach/map.h b/arch/arm/mach-prima2/include/mach/map.h deleted file mode 100644 index 6f24353..0000000 --- a/arch/arm/mach-prima2/include/mach/map.h +++ /dev/null @@ -1,18 +0,0 @@ -/* - * memory & I/O static mapping definitions for CSR SiRFprimaII - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#ifndef __MACH_PRIMA2_MAP_H__ -#define __MACH_PRIMA2_MAP_H__ - -#include <linux/const.h> - -#define SIRFSOC_VA_BASE _AC(0xFEC00000, UL) - -#define SIRFSOC_VA(x) (SIRFSOC_VA_BASE + ((x) & 0x00FFF000)) - -#endif diff --git a/arch/arm/mach-prima2/include/mach/timex.h b/arch/arm/mach-prima2/include/mach/timex.h deleted file mode 100644 index d6f98a7..0000000 --- a/arch/arm/mach-prima2/include/mach/timex.h +++ /dev/null @@ -1,14 +0,0 @@ -/* - * arch/arm/mach-prima2/include/mach/timex.h - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#ifndef __MACH_TIMEX_H__ -#define __MACH_TIMEX_H__ - -#define CLOCK_TICK_RATE 1000000 - -#endif diff --git a/arch/arm/mach-prima2/include/mach/uart.h b/arch/arm/mach-prima2/include/mach/uart.h deleted file mode 100644 index c10510d..0000000 --- a/arch/arm/mach-prima2/include/mach/uart.h +++ /dev/null @@ -1,29 +0,0 @@ -/* - * arch/arm/mach-prima2/include/mach/uart.h - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#ifndef __MACH_PRIMA2_SIRFSOC_UART_H -#define __MACH_PRIMA2_SIRFSOC_UART_H - -/* UART-1: used as serial debug port */ -#if defined(CONFIG_DEBUG_SIRFPRIMA2_UART1) -#define SIRFSOC_UART1_PA_BASE 0xb0060000 -#elif defined(CONFIG_DEBUG_SIRFMARCO_UART1) -#define SIRFSOC_UART1_PA_BASE 0xcc060000 -#else -#define SIRFSOC_UART1_PA_BASE 0 -#endif -#define SIRFSOC_UART1_VA_BASE SIRFSOC_VA(0x060000) -#define SIRFSOC_UART1_SIZE SZ_4K - -#define SIRFSOC_UART_TXFIFO_STATUS 0x0114 -#define SIRFSOC_UART_TXFIFO_DATA 0x0118 - -#define SIRFSOC_UART1_TXFIFO_FULL (1 << 5) -#define SIRFSOC_UART1_TXFIFO_EMPTY (1 << 6) - -#endif diff --git a/arch/arm/mach-prima2/include/mach/uncompress.h b/arch/arm/mach-prima2/include/mach/uncompress.h deleted file mode 100644 index d1513a3..0000000 --- a/arch/arm/mach-prima2/include/mach/uncompress.h +++ /dev/null @@ -1,41 +0,0 @@ -/* - * arch/arm/mach-prima2/include/mach/uncompress.h - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#ifndef __ASM_ARCH_UNCOMPRESS_H -#define __ASM_ARCH_UNCOMPRESS_H - -#include <linux/io.h> -#include <mach/hardware.h> -#include <mach/uart.h> - -void arch_decomp_setup(void) -{ -} - -static __inline__ void putc(char c) -{ - /* - * during kernel decompression, all mappings are flat: - * virt_addr == phys_addr - */ - if (!SIRFSOC_UART1_PA_BASE) - return; - - while (__raw_readl((void __iomem *)SIRFSOC_UART1_PA_BASE + SIRFSOC_UART_TXFIFO_STATUS) - & SIRFSOC_UART1_TXFIFO_FULL) - barrier(); - - __raw_writel(c, (void __iomem *)SIRFSOC_UART1_PA_BASE + SIRFSOC_UART_TXFIFO_DATA); -} - -static inline void flush(void) -{ -} - -#endif - diff --git a/arch/arm/mach-prima2/irq.c b/arch/arm/mach-prima2/irq.c deleted file mode 100644 index 6c0f3e9..0000000 --- a/arch/arm/mach-prima2/irq.c +++ /dev/null @@ -1,129 +0,0 @@ -/* - * interrupt controller support for CSR SiRFprimaII - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#include <linux/init.h> -#include <linux/io.h> -#include <linux/irq.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/irqdomain.h> -#include <linux/syscore_ops.h> -#include <asm/mach/irq.h> -#include <asm/exception.h> -#include <mach/hardware.h> - -#define SIRFSOC_INT_RISC_MASK0 0x0018 -#define SIRFSOC_INT_RISC_MASK1 0x001C -#define SIRFSOC_INT_RISC_LEVEL0 0x0020 -#define SIRFSOC_INT_RISC_LEVEL1 0x0024 -#define SIRFSOC_INIT_IRQ_ID 0x0038 - -void __iomem *sirfsoc_intc_base; - -static __init void -sirfsoc_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num) -{ - struct irq_chip_generic *gc; - struct irq_chip_type *ct; - - gc = irq_alloc_generic_chip("SIRFINTC", 1, irq_start, base, handle_level_irq); - ct = gc->chip_types; - - ct->chip.irq_mask = irq_gc_mask_clr_bit; - ct->chip.irq_unmask = irq_gc_mask_set_bit; - ct->regs.mask = SIRFSOC_INT_RISC_MASK0; - - irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE, IRQ_NOREQUEST, 0); -} - -static __init void sirfsoc_irq_init(void) -{ - sirfsoc_alloc_gc(sirfsoc_intc_base, 0, 32); - sirfsoc_alloc_gc(sirfsoc_intc_base + 4, 32, - SIRFSOC_INTENAL_IRQ_END + 1 - 32); - - writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL0); - writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL1); - - writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK0); - writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK1); -} - -asmlinkage void __exception_irq_entry sirfsoc_handle_irq(struct pt_regs *regs) -{ - u32 irqstat, irqnr; - - irqstat = readl_relaxed(sirfsoc_intc_base + SIRFSOC_INIT_IRQ_ID); - irqnr = irqstat & 0xff; - - handle_IRQ(irqnr, regs); -} - -static struct of_device_id intc_ids[] = { - { .compatible = "sirf,prima2-intc" }, - {}, -}; - -void __init sirfsoc_of_irq_init(void) -{ - struct device_node *np; - - np = of_find_matching_node(NULL, intc_ids); - if (!np) - return; - - sirfsoc_intc_base = of_iomap(np, 0); - if (!sirfsoc_intc_base) - panic("unable to map intc cpu registers\n"); - - irq_domain_add_legacy(np, SIRFSOC_INTENAL_IRQ_END + 1, 0, 0, - &irq_domain_simple_ops, NULL); - - of_node_put(np); - - sirfsoc_irq_init(); -} - -struct sirfsoc_irq_status { - u32 mask0; - u32 mask1; - u32 level0; - u32 level1; -}; - -static struct sirfsoc_irq_status sirfsoc_irq_st; - -static int sirfsoc_irq_suspend(void) -{ - sirfsoc_irq_st.mask0 = readl_relaxed(sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK0); - sirfsoc_irq_st.mask1 = readl_relaxed(sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK1); - sirfsoc_irq_st.level0 = readl_relaxed(sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL0); - sirfsoc_irq_st.level1 = readl_relaxed(sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL1); - - return 0; -} - -static void sirfsoc_irq_resume(void) -{ - writel_relaxed(sirfsoc_irq_st.mask0, sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK0); - writel_relaxed(sirfsoc_irq_st.mask1, sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK1); - writel_relaxed(sirfsoc_irq_st.level0, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL0); - writel_relaxed(sirfsoc_irq_st.level1, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL1); -} - -static struct syscore_ops sirfsoc_irq_syscore_ops = { - .suspend = sirfsoc_irq_suspend, - .resume = sirfsoc_irq_resume, -}; - -static int __init sirfsoc_irq_pm_init(void) -{ - register_syscore_ops(&sirfsoc_irq_syscore_ops); - return 0; -} -device_initcall(sirfsoc_irq_pm_init); diff --git a/arch/arm/mach-prima2/lluart.c b/arch/arm/mach-prima2/lluart.c index a89f9b3..99c0c92 100644 --- a/arch/arm/mach-prima2/lluart.c +++ b/arch/arm/mach-prima2/lluart.c @@ -9,8 +9,18 @@ #include <linux/kernel.h> #include <asm/page.h> #include <asm/mach/map.h> -#include <mach/map.h> -#include <mach/uart.h> +#include "common.h" + +#if defined(CONFIG_DEBUG_SIRFPRIMA2_UART1) +#define SIRFSOC_UART1_PA_BASE 0xb0060000 +#elif defined(CONFIG_DEBUG_SIRFMARCO_UART1) +#define SIRFSOC_UART1_PA_BASE 0xcc060000 +#else +#define SIRFSOC_UART1_PA_BASE 0 +#endif + +#define SIRFSOC_UART1_VA_BASE SIRFSOC_VA(0x060000) +#define SIRFSOC_UART1_SIZE SZ_4K void __init sirfsoc_map_lluart(void) { diff --git a/arch/arm/mach-prima2/platsmp.c b/arch/arm/mach-prima2/platsmp.c index c7c92e7..1c3de7b 100644 --- a/arch/arm/mach-prima2/platsmp.c +++ b/arch/arm/mach-prima2/platsmp.c @@ -17,7 +17,6 @@ #include <asm/smp_scu.h> #include <asm/cacheflush.h> #include <asm/cputype.h> -#include <mach/map.h> #include "common.h" diff --git a/arch/arm/mach-prima2/timer-marco.c b/arch/arm/mach-prima2/timer-marco.c deleted file mode 100644 index f4eea2e..0000000 --- a/arch/arm/mach-prima2/timer-marco.c +++ /dev/null @@ -1,316 +0,0 @@ -/* - * System timer for CSR SiRFprimaII - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/clockchips.h> -#include <linux/clocksource.h> -#include <linux/bitops.h> -#include <linux/irq.h> -#include <linux/clk.h> -#include <linux/slab.h> -#include <linux/of.h> -#include <linux/of_irq.h> -#include <linux/of_address.h> -#include <asm/sched_clock.h> -#include <asm/localtimer.h> -#include <asm/mach/time.h> - -#include "common.h" - -#define SIRFSOC_TIMER_32COUNTER_0_CTRL 0x0000 -#define SIRFSOC_TIMER_32COUNTER_1_CTRL 0x0004 -#define SIRFSOC_TIMER_MATCH_0 0x0018 -#define SIRFSOC_TIMER_MATCH_1 0x001c -#define SIRFSOC_TIMER_COUNTER_0 0x0048 -#define SIRFSOC_TIMER_COUNTER_1 0x004c -#define SIRFSOC_TIMER_INTR_STATUS 0x0060 -#define SIRFSOC_TIMER_WATCHDOG_EN 0x0064 -#define SIRFSOC_TIMER_64COUNTER_CTRL 0x0068 -#define SIRFSOC_TIMER_64COUNTER_LO 0x006c -#define SIRFSOC_TIMER_64COUNTER_HI 0x0070 -#define SIRFSOC_TIMER_64COUNTER_LOAD_LO 0x0074 -#define SIRFSOC_TIMER_64COUNTER_LOAD_HI 0x0078 -#define SIRFSOC_TIMER_64COUNTER_RLATCHED_LO 0x007c -#define SIRFSOC_TIMER_64COUNTER_RLATCHED_HI 0x0080 - -#define SIRFSOC_TIMER_REG_CNT 6 - -static const u32 sirfsoc_timer_reg_list[SIRFSOC_TIMER_REG_CNT] = { - SIRFSOC_TIMER_WATCHDOG_EN, - SIRFSOC_TIMER_32COUNTER_0_CTRL, - SIRFSOC_TIMER_32COUNTER_1_CTRL, - SIRFSOC_TIMER_64COUNTER_CTRL, - SIRFSOC_TIMER_64COUNTER_RLATCHED_LO, - SIRFSOC_TIMER_64COUNTER_RLATCHED_HI, -}; - -static u32 sirfsoc_timer_reg_val[SIRFSOC_TIMER_REG_CNT]; - -static void __iomem *sirfsoc_timer_base; -static void __init sirfsoc_of_timer_map(void); - -/* disable count and interrupt */ -static inline void sirfsoc_timer_count_disable(int idx) -{ - writel_relaxed(readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_32COUNTER_0_CTRL + 4 * idx) & ~0x7, - sirfsoc_timer_base + SIRFSOC_TIMER_32COUNTER_0_CTRL + 4 * idx); -} - -/* enable count and interrupt */ -static inline void sirfsoc_timer_count_enable(int idx) -{ - writel_relaxed(readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_32COUNTER_0_CTRL + 4 * idx) | 0x7, - sirfsoc_timer_base + SIRFSOC_TIMER_32COUNTER_0_CTRL + 4 * idx); -} - -/* timer interrupt handler */ -static irqreturn_t sirfsoc_timer_interrupt(int irq, void *dev_id) -{ - struct clock_event_device *ce = dev_id; - int cpu = smp_processor_id(); - - /* clear timer interrupt */ - writel_relaxed(BIT(cpu), sirfsoc_timer_base + SIRFSOC_TIMER_INTR_STATUS); - - if (ce->mode == CLOCK_EVT_MODE_ONESHOT) - sirfsoc_timer_count_disable(cpu); - - ce->event_handler(ce); - - return IRQ_HANDLED; -} - -/* read 64-bit timer counter */ -static cycle_t sirfsoc_timer_read(struct clocksource *cs) -{ - u64 cycles; - - writel_relaxed((readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_CTRL) | - BIT(0)) & ~BIT(1), sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_CTRL); - - cycles = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_RLATCHED_HI); - cycles = (cycles << 32) | readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_RLATCHED_LO); - - return cycles; -} - -static int sirfsoc_timer_set_next_event(unsigned long delta, - struct clock_event_device *ce) -{ - int cpu = smp_processor_id(); - - writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_0 + - 4 * cpu); - writel_relaxed(delta, sirfsoc_timer_base + SIRFSOC_TIMER_MATCH_0 + - 4 * cpu); - - /* enable the tick */ - sirfsoc_timer_count_enable(cpu); - - return 0; -} - -static void sirfsoc_timer_set_mode(enum clock_event_mode mode, - struct clock_event_device *ce) -{ - switch (mode) { - case CLOCK_EVT_MODE_ONESHOT: - /* enable in set_next_event */ - break; - default: - break; - } - - sirfsoc_timer_count_disable(smp_processor_id()); -} - -static void sirfsoc_clocksource_suspend(struct clocksource *cs) -{ - int i; - - for (i = 0; i < SIRFSOC_TIMER_REG_CNT; i++) - sirfsoc_timer_reg_val[i] = readl_relaxed(sirfsoc_timer_base + sirfsoc_timer_reg_list[i]); -} - -static void sirfsoc_clocksource_resume(struct clocksource *cs) -{ - int i; - - for (i = 0; i < SIRFSOC_TIMER_REG_CNT - 2; i++) - writel_relaxed(sirfsoc_timer_reg_val[i], sirfsoc_timer_base + sirfsoc_timer_reg_list[i]); - - writel_relaxed(sirfsoc_timer_reg_val[SIRFSOC_TIMER_REG_CNT - 2], - sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_LOAD_LO); - writel_relaxed(sirfsoc_timer_reg_val[SIRFSOC_TIMER_REG_CNT - 1], - sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_LOAD_HI); - - writel_relaxed(readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_CTRL) | - BIT(1) | BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_CTRL); -} - -static struct clock_event_device sirfsoc_clockevent = { - .name = "sirfsoc_clockevent", - .rating = 200, - .features = CLOCK_EVT_FEAT_ONESHOT, - .set_mode = sirfsoc_timer_set_mode, - .set_next_event = sirfsoc_timer_set_next_event, -}; - -static struct clocksource sirfsoc_clocksource = { - .name = "sirfsoc_clocksource", - .rating = 200, - .mask = CLOCKSOURCE_MASK(64), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, - .read = sirfsoc_timer_read, - .suspend = sirfsoc_clocksource_suspend, - .resume = sirfsoc_clocksource_resume, -}; - -static struct irqaction sirfsoc_timer_irq = { - .name = "sirfsoc_timer0", - .flags = IRQF_TIMER | IRQF_NOBALANCING, - .handler = sirfsoc_timer_interrupt, - .dev_id = &sirfsoc_clockevent, -}; - -#ifdef CONFIG_LOCAL_TIMERS - -static struct irqaction sirfsoc_timer1_irq = { - .name = "sirfsoc_timer1", - .flags = IRQF_TIMER | IRQF_NOBALANCING, - .handler = sirfsoc_timer_interrupt, -}; - -static int __cpuinit sirfsoc_local_timer_setup(struct clock_event_device *ce) -{ - /* Use existing clock_event for cpu 0 */ - if (!smp_processor_id()) - return 0; - - ce->irq = sirfsoc_timer1_irq.irq; - ce->name = "local_timer"; - ce->features = sirfsoc_clockevent.features; - ce->rating = sirfsoc_clockevent.rating; - ce->set_mode = sirfsoc_timer_set_mode; - ce->set_next_event = sirfsoc_timer_set_next_event; - ce->shift = sirfsoc_clockevent.shift; - ce->mult = sirfsoc_clockevent.mult; - ce->max_delta_ns = sirfsoc_clockevent.max_delta_ns; - ce->min_delta_ns = sirfsoc_clockevent.min_delta_ns; - - sirfsoc_timer1_irq.dev_id = ce; - BUG_ON(setup_irq(ce->irq, &sirfsoc_timer1_irq)); - irq_set_affinity(sirfsoc_timer1_irq.irq, cpumask_of(1)); - - clockevents_register_device(ce); - return 0; -} - -static void sirfsoc_local_timer_stop(struct clock_event_device *ce) -{ - sirfsoc_timer_count_disable(1); - - remove_irq(sirfsoc_timer1_irq.irq, &sirfsoc_timer1_irq); -} - -static struct local_timer_ops sirfsoc_local_timer_ops __cpuinitdata = { - .setup = sirfsoc_local_timer_setup, - .stop = sirfsoc_local_timer_stop, -}; -#endif /* CONFIG_LOCAL_TIMERS */ - -static void __init sirfsoc_clockevent_init(void) -{ - clockevents_calc_mult_shift(&sirfsoc_clockevent, CLOCK_TICK_RATE, 60); - - sirfsoc_clockevent.max_delta_ns = - clockevent_delta2ns(-2, &sirfsoc_clockevent); - sirfsoc_clockevent.min_delta_ns = - clockevent_delta2ns(2, &sirfsoc_clockevent); - - sirfsoc_clockevent.cpumask = cpumask_of(0); - clockevents_register_device(&sirfsoc_clockevent); -#ifdef CONFIG_LOCAL_TIMERS - local_timer_register(&sirfsoc_local_timer_ops); -#endif -} - -/* initialize the kernel jiffy timer source */ -void __init sirfsoc_marco_timer_init(void) -{ - unsigned long rate; - u32 timer_div; - struct clk *clk; - - /* initialize clocking early, we want to set the OS timer */ - sirfsoc_of_clk_init(); - - /* timer's input clock is io clock */ - clk = clk_get_sys("io", NULL); - - BUG_ON(IS_ERR(clk)); - rate = clk_get_rate(clk); - - BUG_ON(rate < CLOCK_TICK_RATE); - BUG_ON(rate % CLOCK_TICK_RATE); - - sirfsoc_of_timer_map(); - - /* Initialize the timer dividers */ - timer_div = rate / CLOCK_TICK_RATE - 1; - writel_relaxed(timer_div << 16, sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_CTRL); - writel_relaxed(timer_div << 16, sirfsoc_timer_base + SIRFSOC_TIMER_32COUNTER_0_CTRL); - writel_relaxed(timer_div << 16, sirfsoc_timer_base + SIRFSOC_TIMER_32COUNTER_1_CTRL); - - /* Initialize timer counters to 0 */ - writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_LOAD_LO); - writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_LOAD_HI); - writel_relaxed(readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_CTRL) | - BIT(1) | BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_CTRL); - writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_0); - writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_1); - - /* Clear all interrupts */ - writel_relaxed(0xFFFF, sirfsoc_timer_base + SIRFSOC_TIMER_INTR_STATUS); - - BUG_ON(clocksource_register_hz(&sirfsoc_clocksource, CLOCK_TICK_RATE)); - - BUG_ON(setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq)); - - sirfsoc_clockevent_init(); -} - -static struct of_device_id timer_ids[] = { - { .compatible = "sirf,marco-tick" }, - {}, -}; - -static void __init sirfsoc_of_timer_map(void) -{ - struct device_node *np; - - np = of_find_matching_node(NULL, timer_ids); - if (!np) - return; - sirfsoc_timer_base = of_iomap(np, 0); - if (!sirfsoc_timer_base) - panic("unable to map timer cpu registers\n"); - - sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0); - if (!sirfsoc_timer_irq.irq) - panic("No irq passed for timer0 via DT\n"); - -#ifdef CONFIG_LOCAL_TIMERS - sirfsoc_timer1_irq.irq = irq_of_parse_and_map(np, 1); - if (!sirfsoc_timer1_irq.irq) - panic("No irq passed for timer1 via DT\n"); -#endif - - of_node_put(np); -} diff --git a/arch/arm/mach-prima2/timer-prima2.c b/arch/arm/mach-prima2/timer-prima2.c deleted file mode 100644 index 6da584f..0000000 --- a/arch/arm/mach-prima2/timer-prima2.c +++ /dev/null @@ -1,241 +0,0 @@ -/* - * System timer for CSR SiRFprimaII - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/clockchips.h> -#include <linux/clocksource.h> -#include <linux/bitops.h> -#include <linux/irq.h> -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/slab.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <mach/map.h> -#include <asm/sched_clock.h> -#include <asm/mach/time.h> - -#include "common.h" - -#define SIRFSOC_TIMER_COUNTER_LO 0x0000 -#define SIRFSOC_TIMER_COUNTER_HI 0x0004 -#define SIRFSOC_TIMER_MATCH_0 0x0008 -#define SIRFSOC_TIMER_MATCH_1 0x000C -#define SIRFSOC_TIMER_MATCH_2 0x0010 -#define SIRFSOC_TIMER_MATCH_3 0x0014 -#define SIRFSOC_TIMER_MATCH_4 0x0018 -#define SIRFSOC_TIMER_MATCH_5 0x001C -#define SIRFSOC_TIMER_STATUS 0x0020 -#define SIRFSOC_TIMER_INT_EN 0x0024 -#define SIRFSOC_TIMER_WATCHDOG_EN 0x0028 -#define SIRFSOC_TIMER_DIV 0x002C -#define SIRFSOC_TIMER_LATCH 0x0030 -#define SIRFSOC_TIMER_LATCHED_LO 0x0034 -#define SIRFSOC_TIMER_LATCHED_HI 0x0038 - -#define SIRFSOC_TIMER_WDT_INDEX 5 - -#define SIRFSOC_TIMER_LATCH_BIT BIT(0) - -#define SIRFSOC_TIMER_REG_CNT 11 - -static const u32 sirfsoc_timer_reg_list[SIRFSOC_TIMER_REG_CNT] = { - SIRFSOC_TIMER_MATCH_0, SIRFSOC_TIMER_MATCH_1, SIRFSOC_TIMER_MATCH_2, - SIRFSOC_TIMER_MATCH_3, SIRFSOC_TIMER_MATCH_4, SIRFSOC_TIMER_MATCH_5, - SIRFSOC_TIMER_INT_EN, SIRFSOC_TIMER_WATCHDOG_EN, SIRFSOC_TIMER_DIV, - SIRFSOC_TIMER_LATCHED_LO, SIRFSOC_TIMER_LATCHED_HI, -}; - -static u32 sirfsoc_timer_reg_val[SIRFSOC_TIMER_REG_CNT]; - -static void __iomem *sirfsoc_timer_base; -static void __init sirfsoc_of_timer_map(void); - -/* timer0 interrupt handler */ -static irqreturn_t sirfsoc_timer_interrupt(int irq, void *dev_id) -{ - struct clock_event_device *ce = dev_id; - - WARN_ON(!(readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_STATUS) & BIT(0))); - - /* clear timer0 interrupt */ - writel_relaxed(BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_STATUS); - - ce->event_handler(ce); - - return IRQ_HANDLED; -} - -/* read 64-bit timer counter */ -static cycle_t sirfsoc_timer_read(struct clocksource *cs) -{ - u64 cycles; - - /* latch the 64-bit timer counter */ - writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base + SIRFSOC_TIMER_LATCH); - cycles = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_LATCHED_HI); - cycles = (cycles << 32) | readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_LATCHED_LO); - - return cycles; -} - -static int sirfsoc_timer_set_next_event(unsigned long delta, - struct clock_event_device *ce) -{ - unsigned long now, next; - - writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base + SIRFSOC_TIMER_LATCH); - now = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_LATCHED_LO); - next = now + delta; - writel_relaxed(next, sirfsoc_timer_base + SIRFSOC_TIMER_MATCH_0); - writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base + SIRFSOC_TIMER_LATCH); - now = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_LATCHED_LO); - - return next - now > delta ? -ETIME : 0; -} - -static void sirfsoc_timer_set_mode(enum clock_event_mode mode, - struct clock_event_device *ce) -{ - u32 val = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN); - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - WARN_ON(1); - break; - case CLOCK_EVT_MODE_ONESHOT: - writel_relaxed(val | BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN); - break; - case CLOCK_EVT_MODE_SHUTDOWN: - writel_relaxed(val & ~BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN); - break; - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_RESUME: - break; - } -} - -static void sirfsoc_clocksource_suspend(struct clocksource *cs) -{ - int i; - - writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base + SIRFSOC_TIMER_LATCH); - - for (i = 0; i < SIRFSOC_TIMER_REG_CNT; i++) - sirfsoc_timer_reg_val[i] = readl_relaxed(sirfsoc_timer_base + sirfsoc_timer_reg_list[i]); -} - -static void sirfsoc_clocksource_resume(struct clocksource *cs) -{ - int i; - - for (i = 0; i < SIRFSOC_TIMER_REG_CNT - 2; i++) - writel_relaxed(sirfsoc_timer_reg_val[i], sirfsoc_timer_base + sirfsoc_timer_reg_list[i]); - - writel_relaxed(sirfsoc_timer_reg_val[SIRFSOC_TIMER_REG_CNT - 2], sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_LO); - writel_relaxed(sirfsoc_timer_reg_val[SIRFSOC_TIMER_REG_CNT - 1], sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_HI); -} - -static struct clock_event_device sirfsoc_clockevent = { - .name = "sirfsoc_clockevent", - .rating = 200, - .features = CLOCK_EVT_FEAT_ONESHOT, - .set_mode = sirfsoc_timer_set_mode, - .set_next_event = sirfsoc_timer_set_next_event, -}; - -static struct clocksource sirfsoc_clocksource = { - .name = "sirfsoc_clocksource", - .rating = 200, - .mask = CLOCKSOURCE_MASK(64), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, - .read = sirfsoc_timer_read, - .suspend = sirfsoc_clocksource_suspend, - .resume = sirfsoc_clocksource_resume, -}; - -static struct irqaction sirfsoc_timer_irq = { - .name = "sirfsoc_timer0", - .flags = IRQF_TIMER, - .irq = 0, - .handler = sirfsoc_timer_interrupt, - .dev_id = &sirfsoc_clockevent, -}; - -/* Overwrite weak default sched_clock with more precise one */ -static u32 notrace sirfsoc_read_sched_clock(void) -{ - return (u32)(sirfsoc_timer_read(NULL) & 0xffffffff); -} - -static void __init sirfsoc_clockevent_init(void) -{ - sirfsoc_clockevent.cpumask = cpumask_of(0); - clockevents_config_and_register(&sirfsoc_clockevent, CLOCK_TICK_RATE, - 2, -2); -} - -/* initialize the kernel jiffy timer source */ -void __init sirfsoc_prima2_timer_init(void) -{ - unsigned long rate; - struct clk *clk; - - /* initialize clocking early, we want to set the OS timer */ - sirfsoc_of_clk_init(); - - /* timer's input clock is io clock */ - clk = clk_get_sys("io", NULL); - - BUG_ON(IS_ERR(clk)); - - rate = clk_get_rate(clk); - - BUG_ON(rate < CLOCK_TICK_RATE); - BUG_ON(rate % CLOCK_TICK_RATE); - - sirfsoc_of_timer_map(); - - writel_relaxed(rate / CLOCK_TICK_RATE / 2 - 1, sirfsoc_timer_base + SIRFSOC_TIMER_DIV); - writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_LO); - writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_HI); - writel_relaxed(BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_STATUS); - - BUG_ON(clocksource_register_hz(&sirfsoc_clocksource, CLOCK_TICK_RATE)); - - setup_sched_clock(sirfsoc_read_sched_clock, 32, CLOCK_TICK_RATE); - - BUG_ON(setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq)); - - sirfsoc_clockevent_init(); -} - -static struct of_device_id timer_ids[] = { - { .compatible = "sirf,prima2-tick" }, - {}, -}; - -static void __init sirfsoc_of_timer_map(void) -{ - struct device_node *np; - const unsigned int *intspec; - - np = of_find_matching_node(NULL, timer_ids); - if (!np) - return; - sirfsoc_timer_base = of_iomap(np, 0); - if (!sirfsoc_timer_base) - panic("unable to map timer cpu registers\n"); - - /* Get the interrupts property */ - intspec = of_get_property(np, "interrupts", NULL); - BUG_ON(!intspec); - sirfsoc_timer_irq.irq = be32_to_cpup(intspec); - - of_node_put(np); -} |