diff options
26 files changed, 1393 insertions, 440 deletions
diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi new file mode 100644 index 000000000000..fe5c6f213271 --- /dev/null +++ b/arch/arm/boot/dts/r8a7779.dtsi @@ -0,0 +1,98 @@ +/* + * Device Tree Source for Renesas r8a7779 + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Simon Horman + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +/include/ "skeleton.dtsi" + +/ { + compatible = "renesas,r8a7779"; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a9"; + reg = <0>; + }; + cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a9"; + reg = <1>; + }; + cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a9"; + reg = <2>; + }; + cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a9"; + reg = <3>; + }; + }; + + gic: interrupt-controller@f0001000 { + compatible = "arm,cortex-a9-gic"; + #interrupt-cells = <3>; + interrupt-controller; + reg = <0xf0001000 0x1000>, + <0xf0000100 0x100>; + }; + + i2c0: i2c@0xffc70000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,rmobile-iic"; + reg = <0xffc70000 0x1000>; + interrupt-parent = <&gic>; + interrupts = <0 79 0x4>; + }; + + i2c1: i2c@0xffc71000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,rmobile-iic"; + reg = <0xffc71000 0x1000>; + interrupt-parent = <&gic>; + interrupts = <0 82 0x4>; + }; + + i2c2: i2c@0xffc72000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,rmobile-iic"; + reg = <0xffc72000 0x1000>; + interrupt-parent = <&gic>; + interrupts = <0 80 0x4>; + }; + + i2c3: i2c@0xffc73000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,rmobile-iic"; + reg = <0xffc73000 0x1000>; + interrupt-parent = <&gic>; + interrupts = <0 81 0x4>; + }; + + thermal@ffc48000 { + compatible = "renesas,rcar-thermal"; + reg = <0xffc48000 0x38>; + }; + + sata: sata@fc600000 { + compatible = "renesas,rcar-sata"; + reg = <0xfc600000 0x2000>; + interrupt-parent = <&gic>; + interrupts = <0 100 0x4>; + }; +}; diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index 9255546e7bf6..75d413c004b6 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -16,6 +16,7 @@ config ARCH_SH73A0 select CPU_V7 select I2C select SH_CLK_CPG + select RENESAS_INTC_IRQPIN config ARCH_R8A7740 bool "R-Mobile A1 (R8A77400)" @@ -31,6 +32,7 @@ config ARCH_R8A7779 select SH_CLK_CPG select USB_ARCH_HAS_EHCI select USB_ARCH_HAS_OHCI + select RENESAS_INTC_IRQPIN config ARCH_EMEV2 bool "Emma Mobile EV2" diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index e1fac57514b9..b646ff4d742a 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -14,10 +14,9 @@ obj-$(CONFIG_ARCH_EMEV2) += setup-emev2.o clock-emev2.o # SMP objects smp-y := platsmp.o headsmp.o -smp-$(CONFIG_HOTPLUG_CPU) += hotplug.o -smp-$(CONFIG_ARCH_SH73A0) += smp-sh73a0.o headsmp-sh73a0.o -smp-$(CONFIG_ARCH_R8A7779) += smp-r8a7779.o -smp-$(CONFIG_ARCH_EMEV2) += smp-emev2.o +smp-$(CONFIG_ARCH_SH73A0) += smp-sh73a0.o headsmp-scu.o +smp-$(CONFIG_ARCH_R8A7779) += smp-r8a7779.o headsmp-scu.o +smp-$(CONFIG_ARCH_EMEV2) += smp-emev2.o headsmp-scu.o # IRQ objects obj-$(CONFIG_ARCH_SH7372) += entry-intc.o diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c index 7f3a6b7e7b7c..d34d12ae496b 100644 --- a/arch/arm/mach-shmobile/board-kzm9g.c +++ b/arch/arm/mach-shmobile/board-kzm9g.c @@ -81,7 +81,7 @@ static struct resource smsc9221_resources[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = intcs_evt2irq(0x260), /* IRQ3 */ + .start = irq_pin(3), /* IRQ3 */ .flags = IORESOURCE_IRQ, }, }; @@ -115,7 +115,7 @@ static struct resource usb_resources[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = intcs_evt2irq(0x220), /* IRQ1 */ + .start = irq_pin(1), /* IRQ1 */ .flags = IORESOURCE_IRQ, }, }; @@ -138,7 +138,7 @@ struct usbhs_private { struct renesas_usbhs_platform_info info; }; -#define IRQ15 intcs_evt2irq(0x03e0) +#define IRQ15 irq_pin(15) #define USB_PHY_MODE (1 << 4) #define USB_PHY_INT_EN ((1 << 3) | (1 << 2)) #define USB_PHY_ON (1 << 1) @@ -563,25 +563,25 @@ static struct i2c_board_info i2c0_devices[] = { }, { I2C_BOARD_INFO("ak8975", 0x0c), - .irq = intcs_evt2irq(0x3380), /* IRQ28 */ + .irq = irq_pin(28), /* IRQ28 */ }, { I2C_BOARD_INFO("adxl34x", 0x1d), - .irq = intcs_evt2irq(0x3340), /* IRQ26 */ + .irq = irq_pin(26), /* IRQ26 */ }, }; static struct i2c_board_info i2c1_devices[] = { { I2C_BOARD_INFO("st1232-ts", 0x55), - .irq = intcs_evt2irq(0x300), /* IRQ8 */ + .irq = irq_pin(8), /* IRQ8 */ }, }; static struct i2c_board_info i2c3_devices[] = { { I2C_BOARD_INFO("pcf8575", 0x20), - .irq = intcs_evt2irq(0x3260), /* IRQ19 */ + .irq = irq_pin(19), /* IRQ19 */ .platform_data = &pcf8575_pdata, }, }; diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c index 19ce885a3b43..1feb9a2286a8 100644 --- a/arch/arm/mach-shmobile/clock-r8a7740.c +++ b/arch/arm/mach-shmobile/clock-r8a7740.c @@ -593,29 +593,42 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("sh_mobile_ceu.1", &mstp_clks[MSTP128]), CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]), + CLKDEV_DEV_ID("e6c80000.sci", &mstp_clks[MSTP200]), CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP201]), + CLKDEV_DEV_ID("e6c70000.sci", &mstp_clks[MSTP201]), CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP202]), + CLKDEV_DEV_ID("e6c60000.sci", &mstp_clks[MSTP202]), CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), + CLKDEV_DEV_ID("e6c50000.sci", &mstp_clks[MSTP203]), CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), + CLKDEV_DEV_ID("e6c40000.sci", &mstp_clks[MSTP204]), CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP206]), + CLKDEV_DEV_ID("e6c30000.sci", &mstp_clks[MSTP206]), CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), + CLKDEV_DEV_ID("e6cb0000.sci", &mstp_clks[MSTP207]), CLKDEV_DEV_ID("sh-dma-engine.3", &mstp_clks[MSTP214]), CLKDEV_DEV_ID("sh-dma-engine.2", &mstp_clks[MSTP216]), CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP222]), + CLKDEV_DEV_ID("e6cd0000.sci", &mstp_clks[MSTP222]), CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP230]), + CLKDEV_DEV_ID("e6cc0000.sci", &mstp_clks[MSTP230]), CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), CLKDEV_DEV_ID("sh_fsi2", &mstp_clks[MSTP328]), CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), CLKDEV_DEV_ID("renesas_usbhs", &mstp_clks[MSTP320]), CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), + CLKDEV_DEV_ID("e6850000.sdhi", &mstp_clks[MSTP314]), CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), + CLKDEV_DEV_ID("e6860000.sdhi", &mstp_clks[MSTP313]), CLKDEV_DEV_ID("sh_mmcif", &mstp_clks[MSTP312]), + CLKDEV_DEV_ID("e6bd0000.mmcif", &mstp_clks[MSTP312]), CLKDEV_DEV_ID("sh-eth", &mstp_clks[MSTP309]), CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP415]), + CLKDEV_DEV_ID("e6870000.sdhi", &mstp_clks[MSTP415]), /* ICK */ CLKDEV_ICK_ID("host", "renesas_usbhs", &mstp_clks[MSTP416]), diff --git a/arch/arm/mach-shmobile/clock-r8a7779.c b/arch/arm/mach-shmobile/clock-r8a7779.c index 1db36537255c..d9edeaf66007 100644 --- a/arch/arm/mach-shmobile/clock-r8a7779.c +++ b/arch/arm/mach-shmobile/clock-r8a7779.c @@ -87,7 +87,8 @@ static struct clk div4_clks[DIV4_NR] = { }; enum { MSTP323, MSTP322, MSTP321, MSTP320, - MSTP101, MSTP100, + MSTP115, + MSTP103, MSTP101, MSTP100, MSTP030, MSTP029, MSTP028, MSTP027, MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021, MSTP016, MSTP015, MSTP014, @@ -99,6 +100,8 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP322] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR3, 22, 0), /* SDHI1 */ [MSTP321] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR3, 21, 0), /* SDHI2 */ [MSTP320] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR3, 20, 0), /* SDHI3 */ + [MSTP115] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 15, 0), /* SATA */ + [MSTP103] = SH_CLK_MSTP32(&div4_clks[DIV4_S], MSTPCR1, 3, 0), /* DU */ [MSTP101] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 1, 0), /* USB2 */ [MSTP100] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 0, 0), /* USB0/1 */ [MSTP030] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 30, 0), /* I2C0 */ @@ -156,6 +159,8 @@ static struct clk_lookup lookups[] = { CLKDEV_CON_ID("peripheral_clk", &div4_clks[DIV4_P]), /* MSTP32 clocks */ + CLKDEV_DEV_ID("sata_rcar", &mstp_clks[MSTP115]), /* SATA */ + CLKDEV_DEV_ID("fc600000.sata", &mstp_clks[MSTP115]), /* SATA w/DT */ CLKDEV_DEV_ID("ehci-platform.1", &mstp_clks[MSTP101]), /* USB EHCI port2 */ CLKDEV_DEV_ID("ohci-platform.1", &mstp_clks[MSTP101]), /* USB OHCI port2 */ CLKDEV_DEV_ID("ehci-platform.0", &mstp_clks[MSTP100]), /* USB EHCI port0/1 */ @@ -180,6 +185,7 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP322]), /* SDHI1 */ CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP321]), /* SDHI2 */ CLKDEV_DEV_ID("sh_mobile_sdhi.3", &mstp_clks[MSTP320]), /* SDHI3 */ + CLKDEV_DEV_ID("rcar-du.0", &mstp_clks[MSTP103]), /* DU */ }; void __init r8a7779_clock_init(void) diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c index afa5423a0f93..71843dd39e16 100644 --- a/arch/arm/mach-shmobile/clock-sh73a0.c +++ b/arch/arm/mach-shmobile/clock-sh73a0.c @@ -265,12 +265,12 @@ enum { DIV4_I, DIV4_ZG, DIV4_M3, DIV4_B, DIV4_M1, DIV4_M2, static struct clk div4_clks[DIV4_NR] = { [DIV4_I] = DIV4(FRQCRA, 20, 0xdff, CLK_ENABLE_ON_INIT), - [DIV4_ZG] = DIV4(FRQCRA, 16, 0xd7f, CLK_ENABLE_ON_INIT), + [DIV4_ZG] = SH_CLK_DIV4(&pll0_clk, FRQCRA, 16, 0xd7f, CLK_ENABLE_ON_INIT), [DIV4_M3] = DIV4(FRQCRA, 12, 0x1dff, CLK_ENABLE_ON_INIT), [DIV4_B] = DIV4(FRQCRA, 8, 0xdff, CLK_ENABLE_ON_INIT), [DIV4_M1] = DIV4(FRQCRA, 4, 0x1dff, 0), [DIV4_M2] = DIV4(FRQCRA, 0, 0x1dff, 0), - [DIV4_Z] = DIV4(FRQCRB, 24, 0x97f, 0), + [DIV4_Z] = SH_CLK_DIV4(&pll0_clk, FRQCRB, 24, 0x97f, 0), [DIV4_ZTR] = DIV4(FRQCRB, 20, 0xdff, 0), [DIV4_ZT] = DIV4(FRQCRB, 16, 0xdff, 0), [DIV4_ZX] = DIV4(FRQCRB, 12, 0xdff, 0), @@ -581,10 +581,13 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("e6822000.i2c", &mstp_clks[MSTP323]), /* I2C1 */ CLKDEV_DEV_ID("renesas_usbhs", &mstp_clks[MSTP322]), /* USB */ CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */ + CLKDEV_DEV_ID("ee100000.sdhi", &mstp_clks[MSTP314]), /* SDHI0 */ CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */ + CLKDEV_DEV_ID("ee120000.sdhi", &mstp_clks[MSTP313]), /* SDHI1 */ CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */ CLKDEV_DEV_ID("e6bd0000.mmcif", &mstp_clks[MSTP312]), /* MMCIF0 */ CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP311]), /* SDHI2 */ + CLKDEV_DEV_ID("ee140000.sdhi", &mstp_clks[MSTP311]), /* SDHI2 */ CLKDEV_DEV_ID("leds-renesas-tpu.12", &mstp_clks[MSTP303]), /* TPU1 */ CLKDEV_DEV_ID("leds-renesas-tpu.21", &mstp_clks[MSTP302]), /* TPU2 */ CLKDEV_DEV_ID("leds-renesas-tpu.30", &mstp_clks[MSTP301]), /* TPU3 */ diff --git a/arch/arm/mach-shmobile/headsmp-sh73a0.S b/arch/arm/mach-shmobile/headsmp-scu.S index bec4c0d9b713..7d113f898e7f 100644 --- a/arch/arm/mach-shmobile/headsmp-sh73a0.S +++ b/arch/arm/mach-shmobile/headsmp-scu.S @@ -1,5 +1,5 @@ /* - * SMP support for SoC sh73a0 + * Shared SCU setup for mach-shmobile * * Copyright (C) 2012 Bastian Hecht * @@ -35,11 +35,12 @@ * the physical address as the MMU is still turned off. */ .align 12 -ENTRY(sh73a0_secondary_vector) +ENTRY(shmobile_secondary_vector_scu) mrc p15, 0, r0, c0, c0, 5 @ read MIPDR and r0, r0, #3 @ mask out cpu ID lsl r0, r0, #3 @ we will shift by cpu_id * 8 bits - mov r1, #0xf0000000 @ SCU base address + ldr r1, 2f + ldr r1, [r1] @ SCU base address ldr r2, [r1, #8] @ SCU Power Status Register mov r3, #3 bic r2, r2, r3, lsl r0 @ Clear bits of our CPU (Run Mode) @@ -47,4 +48,10 @@ ENTRY(sh73a0_secondary_vector) ldr pc, 1f 1: .long shmobile_invalidate_start - PAGE_OFFSET + PLAT_PHYS_OFFSET -ENDPROC(sh73a0_secondary_vector) +2: .long shmobile_scu_base - PAGE_OFFSET + PLAT_PHYS_OFFSET +ENDPROC(shmobile_secondary_vector_scu) + + .text + .globl shmobile_scu_base +shmobile_scu_base: + .space 4 diff --git a/arch/arm/mach-shmobile/hotplug.c b/arch/arm/mach-shmobile/hotplug.c deleted file mode 100644 index a1524e3367b0..000000000000 --- a/arch/arm/mach-shmobile/hotplug.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * SMP support for R-Mobile / SH-Mobile - * - * Copyright (C) 2010 Magnus Damm - * - * Based on realview, Copyright (C) 2002 ARM Ltd, All Rights Reserved - * - * 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/kernel.h> -#include <linux/errno.h> -#include <linux/smp.h> -#include <linux/cpumask.h> -#include <linux/delay.h> -#include <linux/of.h> -#include <mach/common.h> -#include <mach/r8a7779.h> -#include <mach/emev2.h> -#include <asm/cacheflush.h> -#include <asm/mach-types.h> - -static cpumask_t dead_cpus; - -void shmobile_cpu_die(unsigned int cpu) -{ - /* hardware shutdown code running on the CPU that is being offlined */ - flush_cache_all(); - dsb(); - - /* notify platform_cpu_kill() that hardware shutdown is finished */ - cpumask_set_cpu(cpu, &dead_cpus); - - /* wait for SoC code in platform_cpu_kill() to shut off CPU core - * power. CPU bring up starts from the reset vector. - */ - while (1) { - /* - * here's the WFI - */ - asm(".word 0xe320f003\n" - : - : - : "memory", "cc"); - } -} - -int shmobile_cpu_disable(unsigned int cpu) -{ - cpumask_clear_cpu(cpu, &dead_cpus); - /* - * we don't allow CPU 0 to be shutdown (it is still too special - * e.g. clock tick interrupts) - */ - return cpu == 0 ? -EPERM : 0; -} - -int shmobile_cpu_disable_any(unsigned int cpu) -{ - cpumask_clear_cpu(cpu, &dead_cpus); - return 0; -} - -int shmobile_cpu_is_dead(unsigned int cpu) -{ - return cpumask_test_cpu(cpu, &dead_cpus); -} diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h index e48606d8a2be..03f73def2fc6 100644 --- a/arch/arm/mach-shmobile/include/mach/common.h +++ b/arch/arm/mach-shmobile/include/mach/common.h @@ -8,6 +8,7 @@ extern void shmobile_setup_delay(unsigned int max_cpu_core_mhz, struct twd_local_timer; extern void shmobile_setup_console(void); extern void shmobile_secondary_vector(void); +extern void shmobile_secondary_vector_scu(void); struct clk; extern int shmobile_clk_init(void); extern void shmobile_handle_irq_intc(struct pt_regs *); @@ -33,23 +34,23 @@ extern int sh7372_do_idle_sysc(unsigned long sleep_mode); extern struct clk sh7372_extal1_clk; extern struct clk sh7372_extal2_clk; +extern void sh73a0_init_delay(void); extern void sh73a0_init_irq(void); extern void sh73a0_init_irq_dt(void); extern void sh73a0_map_io(void); extern void sh73a0_earlytimer_init(void); extern void sh73a0_add_early_devices(void); -extern void sh73a0_add_early_devices_dt(void); extern void sh73a0_add_standard_devices(void); extern void sh73a0_add_standard_devices_dt(void); extern void sh73a0_clock_init(void); extern void sh73a0_pinmux_init(void); extern void sh73a0_pm_init(void); -extern void sh73a0_secondary_vector(void); extern struct clk sh73a0_extal1_clk; extern struct clk sh73a0_extal2_clk; extern struct clk sh73a0_extcki_clk; extern struct clk sh73a0_extalr_clk; +extern void r8a7740_meram_workaround(void); extern void r8a7740_init_irq(void); extern void r8a7740_map_io(void); extern void r8a7740_add_early_devices(void); @@ -58,16 +59,18 @@ extern void r8a7740_clock_init(u8 md_ck); extern void r8a7740_pinmux_init(void); extern void r8a7740_pm_init(void); +extern void r8a7779_init_delay(void); extern void r8a7779_init_irq(void); +extern void r8a7779_init_irq_extpin(int irlm); +extern void r8a7779_init_irq_dt(void); extern void r8a7779_map_io(void); extern void r8a7779_earlytimer_init(void); extern void r8a7779_add_early_devices(void); extern void r8a7779_add_standard_devices(void); +extern void r8a7779_add_standard_devices_dt(void); extern void r8a7779_clock_init(void); extern void r8a7779_pinmux_init(void); extern void r8a7779_pm_init(void); -extern void r8a7740_meram_workaround(void); - extern void r8a7779_register_twd(void); #ifdef CONFIG_SUSPEND @@ -82,16 +85,7 @@ int shmobile_cpuidle_init(void); static inline int shmobile_cpuidle_init(void) { return 0; } #endif -extern void shmobile_cpu_die(unsigned int cpu); -extern int shmobile_cpu_disable(unsigned int cpu); -extern int shmobile_cpu_disable_any(unsigned int cpu); - -#ifdef CONFIG_HOTPLUG_CPU -extern int shmobile_cpu_is_dead(unsigned int cpu); -#else -static inline int shmobile_cpu_is_dead(unsigned int cpu) { return 1; } -#endif - +extern void __iomem *shmobile_scu_base; extern void shmobile_smp_init_cpus(unsigned int ncores); static inline void __init shmobile_init_late(void) diff --git a/arch/arm/mach-shmobile/include/mach/irqs.h b/arch/arm/mach-shmobile/include/mach/irqs.h index 06a5da3c3050..b2074e2acb15 100644 --- a/arch/arm/mach-shmobile/include/mach/irqs.h +++ b/arch/arm/mach-shmobile/include/mach/irqs.h @@ -5,10 +5,15 @@ /* GIC */ #define gic_spi(nr) ((nr) + 32) +#define gic_iid(nr) (nr) /* ICCIAR / interrupt ID */ /* INTCS */ #define INTCS_VECT_BASE 0x3400 #define INTCS_VECT(n, vect) INTC_VECT((n), INTCS_VECT_BASE + (vect)) #define intcs_evt2irq(evt) evt2irq(INTCS_VECT_BASE + (evt)) +/* External IRQ pins */ +#define IRQPIN_BASE 2000 +#define irq_pin(nr) ((nr) + IRQPIN_BASE) + #endif /* __ASM_MACH_IRQS_H */ diff --git a/arch/arm/mach-shmobile/intc-r8a7779.c b/arch/arm/mach-shmobile/intc-r8a7779.c index 8807c27f71f9..b86dc8908724 100644 --- a/arch/arm/mach-shmobile/intc-r8a7779.c +++ b/arch/arm/mach-shmobile/intc-r8a7779.c @@ -19,12 +19,16 @@ */ #include <linux/kernel.h> #include <linux/init.h> +#include <linux/platform_device.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/io.h> #include <linux/irqchip/arm-gic.h> +#include <linux/platform_data/irq-renesas-intc-irqpin.h> +#include <linux/irqchip.h> #include <mach/common.h> #include <mach/intc.h> +#include <mach/irqs.h> #include <mach/r8a7779.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -38,18 +42,61 @@ #define INT2NTSR0 IOMEM(0xfe700060) #define INT2NTSR1 IOMEM(0xfe700064) +static struct renesas_intc_irqpin_config irqpin0_platform_data = { + .irq_base = irq_pin(0), /* IRQ0 -> IRQ3 */ + .sense_bitfield_width = 2, +}; + +static struct resource irqpin0_resources[] = { + DEFINE_RES_MEM(0xfe78001c, 4), /* ICR1 */ + DEFINE_RES_MEM(0xfe780010, 4), /* INTPRI */ + DEFINE_RES_MEM(0xfe780024, 4), /* INTREQ */ + DEFINE_RES_MEM(0xfe780044, 4), /* INTMSK0 */ + DEFINE_RES_MEM(0xfe780064, 4), /* INTMSKCLR0 */ + DEFINE_RES_IRQ(gic_spi(27)), /* IRQ0 */ + DEFINE_RES_IRQ(gic_spi(28)), /* IRQ1 */ + DEFINE_RES_IRQ(gic_spi(29)), /* IRQ2 */ + DEFINE_RES_IRQ(gic_spi(30)), /* IRQ3 */ +}; + +static struct platform_device irqpin0_device = { + .name = "renesas_intc_irqpin", + .id = 0, + .resource = irqpin0_resources, + .num_resources = ARRAY_SIZE(irqpin0_resources), + .dev = { + .platform_data = &irqpin0_platform_data, + }, +}; + +void __init r8a7779_init_irq_extpin(int irlm) +{ + void __iomem *icr0 = ioremap_nocache(0xfe780000, PAGE_SIZE); + unsigned long tmp; + + if (icr0) { + tmp = ioread32(icr0); + if (irlm) + tmp |= 1 << 23; /* IRQ0 -> IRQ3 as individual pins */ + else + tmp &= ~(1 << 23); /* IRL mode - not supported */ + tmp |= (1 << 21); /* LVLMODE = 1 */ + iowrite32(tmp, icr0); + iounmap(icr0); + + if (irlm) + platform_device_register(&irqpin0_device); + } else + pr_warn("r8a7779: unable to setup external irq pin mode\n"); +} + static int r8a7779_set_wake(struct irq_data *data, unsigned int on) { return 0; /* always allow wakeup */ } -void __init r8a7779_init_irq(void) +static void __init r8a7779_init_irq_common(void) { - void __iomem *gic_dist_base = IOMEM(0xf0001000); - void __iomem *gic_cpu_base = IOMEM(0xf0000100); - - /* use GIC to handle interrupts */ - gic_init(0, 29, gic_dist_base, gic_cpu_base); gic_arch_extn.irq_set_wake = r8a7779_set_wake; /* route all interrupts to ARM */ @@ -63,3 +110,22 @@ void __init r8a7779_init_irq(void) __raw_writel(0xbffffffc, INT2SMSKCR3); __raw_writel(0x003fee3f, INT2SMSKCR4); } + +void __init r8a7779_init_irq(void) +{ + void __iomem *gic_dist_base = IOMEM(0xf0001000); + void __iomem *gic_cpu_base = IOMEM(0xf0000100); + + /* use GIC to handle interrupts */ + gic_init(0, 29, gic_dist_base, gic_cpu_base); + + r8a7779_init_irq_common(); +} + +#ifdef CONFIG_OF +void __init r8a7779_init_irq_dt(void) +{ + irqchip_init(); + r8a7779_init_irq_common(); +} +#endif diff --git a/arch/arm/mach-shmobile/intc-sh73a0.c b/arch/arm/mach-shmobile/intc-sh73a0.c index 91faba666d46..19a26f4579b3 100644 --- a/arch/arm/mach-shmobile/intc-sh73a0.c +++ b/arch/arm/mach-shmobile/intc-sh73a0.c @@ -260,108 +260,6 @@ static int sh73a0_set_wake(struct irq_data *data, unsigned int on) return 0; /* always allow wakeup */ } -#define RELOC_BASE 0x1200 - -/* INTCA IRQ pins at INTCS + RELOC_BASE to make space for GIC+INTC handling */ -#define INTCS_VECT_RELOC(n, vect) INTCS_VECT((n), (vect) + RELOC_BASE) - -INTC_IRQ_PINS_32(intca_irq_pins, 0xe6900000, - INTCS_VECT_RELOC, "sh73a0-intca-irq-pins"); - -static int to_gic_irq(struct irq_data *data) -{ - unsigned int vect = irq2evt(data->irq) - INTCS_VECT_BASE; - - if (vect >= 0x3200) - vect -= 0x3000; - else - vect -= 0x0200; - - return gic_spi((vect >> 5) + 1); -} - -static int to_intca_reloc_irq(struct irq_data *data) -{ - return data->irq + (RELOC_BASE >> 5); -} - -#define irq_cb(cb, irq) irq_get_chip(irq)->cb(irq_get_irq_data(irq)) -#define irq_cbp(cb, irq, p...) irq_get_chip(irq)->cb(irq_get_irq_data(irq), p) - -static void intca_gic_enable(struct irq_data *data) -{ - irq_cb(irq_unmask, to_intca_reloc_irq(data)); - irq_cb(irq_unmask, to_gic_irq(data)); -} - -static void intca_gic_disable(struct irq_data *data) -{ - irq_cb(irq_mask, to_gic_irq(data)); - irq_cb(irq_mask, to_intca_reloc_irq(data)); -} - -static void intca_gic_mask_ack(struct irq_data *data) -{ - irq_cb(irq_mask, to_gic_irq(data)); - irq_cb(irq_mask_ack, to_intca_reloc_irq(data)); -} - -static void intca_gic_eoi(struct irq_data *data) -{ - irq_cb(irq_eoi, to_gic_irq(data)); -} - -static int intca_gic_set_type(struct irq_data *data, unsigned int type) -{ - return irq_cbp(irq_set_type, to_intca_reloc_irq(data), type); -} - -#ifdef CONFIG_SMP -static int intca_gic_set_affinity(struct irq_data *data, - const struct cpumask *cpumask, - bool force) -{ - return irq_cbp(irq_set_affinity, to_gic_irq(data), cpumask, force); -} -#endif - -struct irq_chip intca_gic_irq_chip = { - .name = "INTCA-GIC", - .irq_mask = intca_gic_disable, - .irq_unmask = intca_gic_enable, - .irq_mask_ack = intca_gic_mask_ack, - .irq_eoi = intca_gic_eoi, - .irq_enable = intca_gic_enable, - .irq_disable = intca_gic_disable, - .irq_shutdown = intca_gic_disable, - .irq_set_type = intca_gic_set_type, - .irq_set_wake = sh73a0_set_wake, -#ifdef CONFIG_SMP - .irq_set_affinity = intca_gic_set_affinity, -#endif -}; - -static int to_intc_vect(int irq) -{ - unsigned int irq_pin = irq - gic_spi(1); - unsigned int offs; - - if (irq_pin < 16) - offs = 0x0200; - else - offs = 0x3000; - - return offs + (irq_pin << 5); -} - -static irqreturn_t sh73a0_irq_pin_demux(int irq, void *dev_id) -{ - generic_handle_irq(intcs_evt2irq(to_intc_vect(irq))); - return IRQ_HANDLED; -} - -static struct irqaction sh73a0_irq_pin_cascade[32]; - #define PINTER0_PHYS 0xe69000a0 #define PINTER1_PHYS 0xe69000a4 #define PINTER0_VIRT IOMEM(0xe69000a0) @@ -422,13 +320,11 @@ void __init sh73a0_init_irq(void) void __iomem *gic_dist_base = IOMEM(0xf0001000); void __iomem *gic_cpu_base = IOMEM(0xf0000100); void __iomem *intevtsa = ioremap_nocache(0xffd20100, PAGE_SIZE); - int k, n; gic_init(0, 29, gic_dist_base, gic_cpu_base); gic_arch_extn.irq_set_wake = sh73a0_set_wake; register_intc_controller(&intcs_desc); - register_intc_controller(&intca_irq_pins_desc); register_intc_controller(&intc_pint0_desc); register_intc_controller(&intc_pint1_desc); @@ -438,19 +334,6 @@ void __init sh73a0_init_irq(void) sh73a0_intcs_cascade.dev_id = intevtsa; setup_irq(gic_spi(50), &sh73a0_intcs_cascade); - /* IRQ pins require special handling through INTCA and GIC */ - for (k = 0; k < 32; k++) { - sh73a0_irq_pin_cascade[k].name = "INTCA-GIC cascade"; - sh73a0_irq_pin_cascade[k].handler = sh73a0_irq_pin_demux; - setup_irq(gic_spi(1 + k), &sh73a0_irq_pin_cascade[k]); - - n = intcs_evt2irq(to_intc_vect(gic_spi(1 + k))); - WARN_ON(irq_alloc_desc_at(n, numa_node_id()) != n); - irq_set_chip_and_handler_name(n, &intca_gic_irq_chip, - handle_level_irq, "level"); - set_irq_flags(n, IRQF_VALID); /* yuck */ - } - /* PINT pins are sanely tied to the GIC as SPI */ sh73a0_pint0_cascade.name = "PINT0 cascade"; sh73a0_pint0_cascade.handler = sh73a0_pint0_demux; @@ -460,11 +343,3 @@ void __init sh73a0_init_irq(void) sh73a0_pint1_cascade.handler = sh73a0_pint1_demux; setup_irq(gic_spi(34), &sh73a0_pint1_cascade); } - -#ifdef CONFIG_OF -void __init sh73a0_init_irq_dt(void) -{ - irqchip_init(); - gic_arch_extn.irq_set_wake = sh73a0_set_wake; -} -#endif diff --git a/arch/arm/mach-shmobile/setup-emev2.c b/arch/arm/mach-shmobile/setup-emev2.c index 47662a581c0a..e4545c152722 100644 --- a/arch/arm/mach-shmobile/setup-emev2.c +++ b/arch/arm/mach-shmobile/setup-emev2.c @@ -404,7 +404,7 @@ void __init emev2_add_standard_devices(void) ARRAY_SIZE(emev2_late_devices)); } -void __init emev2_init_delay(void) +static void __init emev2_init_delay(void) { shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */ } @@ -439,7 +439,7 @@ static const struct of_dev_auxdata emev2_auxdata_lookup[] __initconst = { { } }; -void __init emev2_add_standard_devices_dt(void) +static void __init emev2_add_standard_devices_dt(void) { of_platform_populate(NULL, of_default_bus_match_table, emev2_auxdata_lookup, NULL); diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c index c54ff9b29fe5..042df35e71a0 100644 --- a/arch/arm/mach-shmobile/setup-r8a7779.c +++ b/arch/arm/mach-shmobile/setup-r8a7779.c @@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/input.h> @@ -28,6 +29,7 @@ #include <linux/serial_sci.h> #include <linux/sh_intc.h> #include <linux/sh_timer.h> +#include <linux/dma-mapping.h> #include <mach/hardware.h> #include <mach/irqs.h> #include <mach/r8a7779.h> @@ -91,7 +93,7 @@ static struct plat_sci_port scif0_platform_data = { .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, .scbrr_algo_id = SCBRR_ALGO_2, .type = PORT_SCIF, - .irqs = SCIx_IRQ_MUXED(gic_spi(88)), + .irqs = SCIx_IRQ_MUXED(gic_iid(0x78)), }; static struct platform_device scif0_device = { @@ -108,7 +110,7 @@ static struct plat_sci_port scif1_platform_data = { .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, .scbrr_algo_id = SCBRR_ALGO_2, .type = PORT_SCIF, - .irqs = SCIx_IRQ_MUXED(gic_spi(89)), + .irqs = SCIx_IRQ_MUXED(gic_iid(0x79)), }; static struct platform_device scif1_device = { @@ -125,7 +127,7 @@ static struct plat_sci_port scif2_platform_data = { .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, .scbrr_algo_id = SCBRR_ALGO_2, .type = PORT_SCIF, - .irqs = SCIx_IRQ_MUXED(gic_spi(90)), + .irqs = SCIx_IRQ_MUXED(gic_iid(0x7a)), }; static struct platform_device scif2_device = { @@ -142,7 +144,7 @@ static struct plat_sci_port scif3_platform_data = { .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, .scbrr_algo_id = SCBRR_ALGO_2, .type = PORT_SCIF, - .irqs = SCIx_IRQ_MUXED(gic_spi(91)), + .irqs = SCIx_IRQ_MUXED(gic_iid(0x7b)), }; static struct platform_device scif3_device = { @@ -159,7 +161,7 @@ static struct plat_sci_port scif4_platform_data = { .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, .scbrr_algo_id = SCBRR_ALGO_2, .type = PORT_SCIF, - .irqs = SCIx_IRQ_MUXED(gic_spi(92)), + .irqs = SCIx_IRQ_MUXED(gic_iid(0x7c)), }; static struct platform_device scif4_device = { @@ -176,7 +178,7 @@ static struct plat_sci_port scif5_platform_data = { .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, .scbrr_algo_id = SCBRR_ALGO_2, .type = PORT_SCIF, - .irqs = SCIx_IRQ_MUXED(gic_spi(93)), + .irqs = SCIx_IRQ_MUXED(gic_iid(0x7d)), }; static struct platform_device scif5_device = { @@ -203,7 +205,7 @@ static struct resource tmu00_resources[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = gic_spi(32), + .start = gic_iid(0x40), .flags = IORESOURCE_IRQ, }, }; @@ -233,7 +235,7 @@ static struct resource tmu01_resources[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = gic_spi(33), + .start = gic_iid(0x41), .flags = IORESOURCE_IRQ, }, }; @@ -255,7 +257,7 @@ static struct resource rcar_i2c0_res[] = { .end = 0xffc70fff, .flags = IORESOURCE_MEM, }, { - .start = gic_spi(79), + .start = gic_iid(0x6f), .flags = IORESOURCE_IRQ, }, }; @@ -273,7 +275,7 @@ static struct resource rcar_i2c1_res[] = { .end = 0xffc71fff, .flags = IORESOURCE_MEM, }, { - .start = gic_spi(82), + .start = gic_iid(0x72), .flags = IORESOURCE_IRQ, }, }; @@ -291,7 +293,7 @@ static struct resource rcar_i2c2_res[] = { .end = 0xffc72fff, .flags = IORESOURCE_MEM, }, { - .start = gic_spi(80), + .start = gic_iid(0x70), .flags = IORESOURCE_IRQ, }, }; @@ -309,7 +311,7 @@ static struct resource rcar_i2c3_res[] = { .end = 0xffc73fff, .flags = IORESOURCE_MEM, }, { - .start = gic_spi(81), + .start = gic_iid(0x71), .flags = IORESOURCE_IRQ, }, }; @@ -321,7 +323,31 @@ static struct platform_device i2c3_device = { .num_resources = ARRAY_SIZE(rcar_i2c3_res), }; -static struct platform_device *r8a7779_early_devices[] __initdata = { +static struct resource sata_resources[] = { + [0] = { + .name = "rcar-sata", + .start = 0xfc600000, + .end = 0xfc601fff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = gic_iid(0x84), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device sata_device = { + .name = "sata_rcar", + .id = -1, + .resource = sata_resources, + .num_resources = ARRAY_SIZE(sata_resources), + .dev = { + .dma_mask = &sata_device.dev.coherent_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +static struct platform_device *r8a7779_devices_dt[] __initdata = { &scif0_device, &scif1_device, &scif2_device, @@ -330,13 +356,14 @@ static struct platform_device *r8a7779_early_devices[] __initdata = { &scif5_device, &tmu00_device, &tmu01_device, +}; + +static struct platform_device *r8a7779_late_devices[] __initdata = { &i2c0_device, &i2c1_device, &i2c2_device, &i2c3_device, -}; - -static struct platform_device *r8a7779_late_devices[] __initdata = { + &sata_device, }; void __init r8a7779_add_standard_devices(void) @@ -349,8 +376,8 @@ void __init r8a7779_add_standard_devices(void) r8a7779_init_pm_domains(); - platform_add_devices(r8a7779_early_devices, - ARRAY_SIZE(r8a7779_early_devices)); + platform_add_devices(r8a7779_devices_dt, + ARRAY_SIZE(r8a7779_devices_dt)); platform_add_devices(r8a7779_late_devices, ARRAY_SIZE(r8a7779_late_devices)); } @@ -367,8 +394,8 @@ void __init r8a7779_earlytimer_init(void) void __init r8a7779_add_early_devices(void) { - early_platform_add_devices(r8a7779_early_devices, - ARRAY_SIZE(r8a7779_early_devices)); + early_platform_add_devices(r8a7779_devices_dt, + ARRAY_SIZE(r8a7779_devices_dt)); /* Early serial console setup is not included here due to * memory map collisions. The SCIF serial ports in r8a7779 @@ -386,3 +413,40 @@ void __init r8a7779_add_early_devices(void) * command line in case of the marzen board. */ } + +#ifdef CONFIG_USE_OF +void __init r8a7779_init_delay(void) +{ + shmobile_setup_delay(1000, 2, 4); /* Cortex-A9 @ 1000MHz */ +} + +static const struct of_dev_auxdata r8a7779_auxdata_lookup[] __initconst = { + {}, +}; + +void __init r8a7779_add_standard_devices_dt(void) +{ + /* clocks are setup late during boot in the case of DT */ + r8a7779_clock_init(); + + platform_add_devices(r8a7779_devices_dt, + ARRAY_SIZE(r8a7779_devices_dt)); + of_platform_populate(NULL, of_default_bus_match_table, + r8a7779_auxdata_lookup, NULL); +} + +static const char *r8a7779_compat_dt[] __initdata = { + "renesas,r8a7779", + NULL, +}; + +DT_MACHINE_START(R8A7779_DT, "Generic R8A7779 (Flattened Device Tree)") + .map_io = r8a7779_map_io, + .init_early = r8a7779_init_delay, + .nr_irqs = NR_IRQS_LEGACY, + .init_irq = r8a7779_init_irq_dt, + .init_machine = r8a7779_add_standard_devices_dt, + .init_time = shmobile_timer_init, + .dt_compat = r8a7779_compat_dt, +MACHINE_END +#endif /* CONFIG_USE_OF */ diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c index bdab575f88bc..e8cd93a5c550 100644 --- a/arch/arm/mach-shmobile/setup-sh73a0.c +++ b/arch/arm/mach-shmobile/setup-sh73a0.c @@ -22,6 +22,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/irqchip.h> #include <linux/platform_device.h> #include <linux/of_platform.h> #include <linux/delay.h> @@ -32,6 +33,7 @@ #include <linux/sh_intc.h> #include <linux/sh_timer.h> #include <linux/platform_data/sh_ipmmu.h> +#include <linux/platform_data/irq-renesas-intc-irqpin.h> #include <mach/dma-register.h> #include <mach/hardware.h> #include <mach/irqs.h> @@ -810,7 +812,128 @@ static struct platform_device ipmmu_device = { .num_resources = ARRAY_SIZE(ipmmu_resources), }; -static struct platform_device *sh73a0_early_devices_dt[] __initdata = { +static struct renesas_intc_irqpin_config irqpin0_platform_data = { + .irq_base = irq_pin(0), /* IRQ0 -> IRQ7 */ +}; + +static struct resource irqpin0_resources[] = { + DEFINE_RES_MEM(0xe6900000, 4), /* ICR1A */ + DEFINE_RES_MEM(0xe6900010, 4), /* INTPRI00A */ + DEFINE_RES_MEM(0xe6900020, 1), /* INTREQ00A */ + DEFINE_RES_MEM(0xe6900040, 1), /* INTMSK00A */ + DEFINE_RES_MEM(0xe6900060, 1), /* INTMSKCLR00A */ + DEFINE_RES_IRQ(gic_spi(1)), /* IRQ0 */ + DEFINE_RES_IRQ(gic_spi(2)), /* IRQ1 */ + DEFINE_RES_IRQ(gic_spi(3)), /* IRQ2 */ + DEFINE_RES_IRQ(gic_spi(4)), /* IRQ3 */ + DEFINE_RES_IRQ(gic_spi(5)), /* IRQ4 */ + DEFINE_RES_IRQ(gic_spi(6)), /* IRQ5 */ + DEFINE_RES_IRQ(gic_spi(7)), /* IRQ6 */ + DEFINE_RES_IRQ(gic_spi(8)), /* IRQ7 */ +}; + +static struct platform_device irqpin0_device = { + .name = "renesas_intc_irqpin", + .id = 0, + .resource = irqpin0_resources, + .num_resources = ARRAY_SIZE(irqpin0_resources), + .dev = { + .platform_data = &irqpin0_platform_data, + }, +}; + +static struct renesas_intc_irqpin_config irqpin1_platform_data = { + .irq_base = irq_pin(8), /* IRQ8 -> IRQ15 */ + .control_parent = true, /* Disable spurious IRQ10 */ +}; + +static struct resource irqpin1_resources[] = { + DEFINE_RES_MEM(0xe6900004, 4), /* ICR2A */ + DEFINE_RES_MEM(0xe6900014, 4), /* INTPRI10A */ + DEFINE_RES_MEM(0xe6900024, 1), /* INTREQ10A */ + DEFINE_RES_MEM(0xe6900044, 1), /* INTMSK10A */ + DEFINE_RES_MEM(0xe6900064, 1), /* INTMSKCLR10A */ + DEFINE_RES_IRQ(gic_spi(9)), /* IRQ8 */ + DEFINE_RES_IRQ(gic_spi(10)), /* IRQ9 */ + DEFINE_RES_IRQ(gic_spi(11)), /* IRQ10 */ + DEFINE_RES_IRQ(gic_spi(12)), /* IRQ11 */ + DEFINE_RES_IRQ(gic_spi(13)), /* IRQ12 */ + DEFINE_RES_IRQ(gic_spi(14)), /* IRQ13 */ + DEFINE_RES_IRQ(gic_spi(15)), /* IRQ14 */ + DEFINE_RES_IRQ(gic_spi(16)), /* IRQ15 */ +}; + +static struct platform_device irqpin1_device = { + .name = "renesas_intc_irqpin", + .id = 1, + .resource = irqpin1_resources, + .num_resources = ARRAY_SIZE(irqpin1_resources), + .dev = { + .platform_data = &irqpin1_platform_data, + }, +}; + +static struct renesas_intc_irqpin_config irqpin2_platform_data = { + .irq_base = irq_pin(16), /* IRQ16 -> IRQ23 */ +}; + +static struct resource irqpin2_resources[] = { + DEFINE_RES_MEM(0xe6900008, 4), /* ICR3A */ + DEFINE_RES_MEM(0xe6900018, 4), /* INTPRI20A */ + DEFINE_RES_MEM(0xe6900028, 1), /* INTREQ20A */ + DEFINE_RES_MEM(0xe6900048, 1), /* INTMSK20A */ + DEFINE_RES_MEM(0xe6900068, 1), /* INTMSKCLR20A */ + DEFINE_RES_IRQ(gic_spi(17)), /* IRQ16 */ + DEFINE_RES_IRQ(gic_spi(18)), /* IRQ17 */ + DEFINE_RES_IRQ(gic_spi(19)), /* IRQ18 */ + DEFINE_RES_IRQ(gic_spi(20)), /* IRQ19 */ + DEFINE_RES_IRQ(gic_spi(21)), /* IRQ20 */ + DEFINE_RES_IRQ(gic_spi(22)), /* IRQ21 */ + DEFINE_RES_IRQ(gic_spi(23)), /* IRQ22 */ + DEFINE_RES_IRQ(gic_spi(24)), /* IRQ23 */ +}; + +static struct platform_device irqpin2_device = { + .name = "renesas_intc_irqpin", + .id = 2, + .resource = irqpin2_resources, + .num_resources = ARRAY_SIZE(irqpin2_resources), + .dev = { + .platform_data = &irqpin2_platform_data, + }, +}; + +static struct renesas_intc_irqpin_config irqpin3_platform_data = { + .irq_base = irq_pin(24), /* IRQ24 -> IRQ31 */ +}; + +static struct resource irqpin3_resources[] = { + DEFINE_RES_MEM(0xe690000c, 4), /* ICR4A */ + DEFINE_RES_MEM(0xe690001c, 4), /* INTPRI30A */ + DEFINE_RES_MEM(0xe690002c, 1), /* INTREQ30A */ + DEFINE_RES_MEM(0xe690004c, 1), /* INTMSK30A */ + DEFINE_RES_MEM(0xe690006c, 1), /* INTMSKCLR30A */ + DEFINE_RES_IRQ(gic_spi(25)), /* IRQ24 */ + DEFINE_RES_IRQ(gic_spi(26)), /* IRQ25 */ + DEFINE_RES_IRQ(gic_spi(27)), /* IRQ26 */ + DEFINE_RES_IRQ(gic_spi(28)), /* IRQ27 */ + DEFINE_RES_IRQ(gic_spi(29)), /* IRQ28 */ + DEFINE_RES_IRQ(gic_spi(30)), /* IRQ29 */ + DEFINE_RES_IRQ(gic_spi(31)), /* IRQ30 */ + DEFINE_RES_IRQ(gic_spi(32)), /* IRQ31 */ +}; + +static struct platform_device irqpin3_device = { + .name = "renesas_intc_irqpin", + .id = 3, + .resource = irqpin3_resources, + .num_resources = ARRAY_SIZE(irqpin3_resources), + .dev = { + .platform_data = &irqpin3_platform_data, + }, +}; + +static struct platform_device *sh73a0_devices_dt[] __initdata = { &scif0_device, &scif1_device, &scif2_device, @@ -838,6 +961,10 @@ static struct platform_device *sh73a0_late_devices[] __initdata = { &dma0_device, &mpdma0_device, &pmu_device, + &irqpin0_device, + &irqpin1_device, + &irqpin2_device, + &irqpin3_device, }; #define SRCR2 IOMEM(0xe61580b0) @@ -847,8 +974,8 @@ void __init sh73a0_add_standard_devices(void) /* Clear software reset bit on SY-DMAC module */ __raw_writel(__raw_readl(SRCR2) & ~(1 << 18), SRCR2); - platform_add_devices(sh73a0_early_devices_dt, - ARRAY_SIZE(sh73a0_early_devices_dt)); + platform_add_devices(sh73a0_devices_dt, + ARRAY_SIZE(sh73a0_devices_dt)); platform_add_devices(sh73a0_early_devices, ARRAY_SIZE(sh73a0_early_devices)); platform_add_devices(sh73a0_late_devices, @@ -867,8 +994,8 @@ void __init sh73a0_earlytimer_init(void) void __init sh73a0_add_early_devices(void) { - early_platform_add_devices(sh73a0_early_devices_dt, - ARRAY_SIZE(sh73a0_early_devices_dt)); + early_platform_add_devices(sh73a0_devices_dt, + ARRAY_SIZE(sh73a0_devices_dt)); early_platform_add_devices(sh73a0_early_devices, ARRAY_SIZE(sh73a0_early_devices)); @@ -878,23 +1005,9 @@ void __init sh73a0_add_early_devices(void) #ifdef CONFIG_USE_OF -/* Please note that the clock initialisation shcheme used in - * sh73a0_add_early_devices_dt() and sh73a0_add_standard_devices_dt() - * does not work with SMP as there is a yet to be resolved lock-up in - * workqueue initialisation. - * - * CONFIG_SMP should be disabled when using this code. - */ - -void __init sh73a0_add_early_devices_dt(void) +void __init sh73a0_init_delay(void) { shmobile_setup_delay(1196, 44, 46); /* Cortex-A9 @ 1196MHz */ - - early_platform_add_devices(sh73a0_early_devices_dt, - ARRAY_SIZE(sh73a0_early_devices_dt)); - - /* setup early console here as well */ - shmobile_setup_console(); } static const struct of_dev_auxdata sh73a0_auxdata_lookup[] __initconst = { @@ -906,8 +1019,8 @@ void __init sh73a0_add_standard_devices_dt(void) /* clocks are setup late during boot in the case of DT */ sh73a0_clock_init(); - platform_add_devices(sh73a0_early_devices_dt, - ARRAY_SIZE(sh73a0_early_devices_dt)); + platform_add_devices(sh73a0_devices_dt, + ARRAY_SIZE(sh73a0_devices_dt)); of_platform_populate(NULL, of_default_bus_match_table, sh73a0_auxdata_lookup, NULL); } @@ -918,10 +1031,11 @@ static const char *sh73a0_boards_compat_dt[] __initdata = { }; DT_MACHINE_START(SH73A0_DT, "Generic SH73A0 (Flattened Device Tree)") + .smp = smp_ops(sh73a0_smp_ops), .map_io = sh73a0_map_io, - .init_early = sh73a0_add_early_devices_dt, + .init_early = sh73a0_init_delay, .nr_irqs = NR_IRQS_LEGACY, - .init_irq = sh73a0_init_irq_dt, + .init_irq = irqchip_init, .init_machine = sh73a0_add_standard_devices_dt, .init_time = shmobile_timer_init, .dt_compat = sh73a0_boards_compat_dt, diff --git a/arch/arm/mach-shmobile/smp-emev2.c b/arch/arm/mach-shmobile/smp-emev2.c index 953eb1f9388d..8225c16b371b 100644 --- a/arch/arm/mach-shmobile/smp-emev2.c +++ b/arch/arm/mach-shmobile/smp-emev2.c @@ -28,63 +28,9 @@ #include <mach/emev2.h> #include <asm/smp_plat.h> #include <asm/smp_scu.h> -#include <asm/cacheflush.h> #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) { - scu_base = ioremap(EMEV2_SCU_BASE, PAGE_SIZE); - emev2_clock_init(); /* need ioremapped SMU */ - } - - WARN_ON_ONCE(!scu_base); - - return scu_base ? scu_get_core_count(scu_base) : 1; -} - -static int emev2_platform_cpu_kill(unsigned int cpu) -{ - return 0; /* not supported yet */ -} - -static int __maybe_unused emev2_cpu_kill(unsigned int cpu) -{ - int k; - - /* this function is running on another CPU than the offline target, - * here we need wait for shutdown code in platform_cpu_die() to - * finish before asking SoC-specific code to power off the CPU core. - */ - for (k = 0; k < 1000; k++) { - if (shmobile_cpu_is_dead(cpu)) - return emev2_platform_cpu_kill(cpu); - mdelay(1); - } - - return 0; -} - - static void __cpuinit emev2_secondary_init(unsigned int cpu) { gic_secondary_init(0); @@ -92,31 +38,30 @@ static void __cpuinit emev2_secondary_init(unsigned int cpu) static int __cpuinit emev2_boot_secondary(unsigned int cpu, struct task_struct *idle) { - cpu = cpu_logical_map(cpu); - - /* enable cache coherency */ - 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)); - - arch_send_wakeup_ipi_mask(cpumask_of(cpu)); + arch_send_wakeup_ipi_mask(cpumask_of(cpu_logical_map(cpu))); return 0; } static void __init emev2_smp_prepare_cpus(unsigned int max_cpus) { - int cpu = cpu_logical_map(0); + scu_enable(shmobile_scu_base); - scu_enable(scu_base); + /* Tell ROM loader about our vector (in headsmp-scu.S) */ + emev2_set_boot_vector(__pa(shmobile_secondary_vector_scu)); - /* enable cache coherency on CPU0 */ - modify_scu_cpu_psr(0, 3 << (cpu * 8)); + /* enable cache coherency on booting CPU */ + scu_power_mode(shmobile_scu_base, SCU_PM_NORMAL); } static void __init emev2_smp_init_cpus(void) { - unsigned int ncores = emev2_get_core_count(); + unsigned int ncores; + + /* setup EMEV2 specific SCU base */ + shmobile_scu_base = ioremap(EMEV2_SCU_BASE, PAGE_SIZE); + emev2_clock_init(); /* need ioremapped SMU */ + + ncores = shmobile_scu_base ? scu_get_core_count(shmobile_scu_base) : 1; shmobile_smp_init_cpus(ncores); } @@ -126,9 +71,4 @@ struct smp_operations emev2_smp_ops __initdata = { .smp_prepare_cpus = emev2_smp_prepare_cpus, .smp_secondary_init = emev2_secondary_init, .smp_boot_secondary = emev2_boot_secondary, -#ifdef CONFIG_HOTPLUG_CPU - .cpu_kill = emev2_cpu_kill, - .cpu_die = shmobile_cpu_die, - .cpu_disable = shmobile_cpu_disable, -#endif }; diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c index 3a4acf23edcf..ea4535a5c4e2 100644 --- a/arch/arm/mach-shmobile/smp-r8a7779.c +++ b/arch/arm/mach-shmobile/smp-r8a7779.c @@ -26,11 +26,13 @@ #include <linux/irqchip/arm-gic.h> #include <mach/common.h> #include <mach/r8a7779.h> +#include <asm/cacheflush.h> #include <asm/smp_plat.h> #include <asm/smp_scu.h> #include <asm/smp_twd.h> #define AVECR IOMEM(0xfe700040) +#define R8A7779_SCU_BASE 0xf0000000 static struct r8a7779_pm_ch r8a7779_ch_cpu1 = { .chan_offs = 0x40, /* PWRSR0 .. PWRER0 */ @@ -56,44 +58,14 @@ static struct r8a7779_pm_ch *r8a7779_ch_cpu[4] = { [3] = &r8a7779_ch_cpu3, }; -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); - +static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, R8A7779_SCU_BASE + 0x600, 29); void __init r8a7779_register_twd(void) { twd_local_timer_register(&twd_local_timer); } #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(); - - return scu_get_core_count(scu_base); -} - static int r8a7779_platform_cpu_kill(unsigned int cpu) { struct r8a7779_pm_ch *ch = NULL; @@ -101,9 +73,6 @@ static int r8a7779_platform_cpu_kill(unsigned int cpu) cpu = cpu_logical_map(cpu); - /* disable cache coherency */ - modify_scu_cpu_psr(3 << (cpu * 8), 0); - if (cpu < ARRAY_SIZE(r8a7779_ch_cpu)) ch = r8a7779_ch_cpu[cpu]; @@ -113,25 +82,6 @@ static int r8a7779_platform_cpu_kill(unsigned int cpu) return ret ? ret : 1; } -static int __maybe_unused r8a7779_cpu_kill(unsigned int cpu) -{ - int k; - - /* this function is running on another CPU than the offline target, - * here we need wait for shutdown code in platform_cpu_die() to - * finish before asking SoC-specific code to power off the CPU core. - */ - for (k = 0; k < 1000; k++) { - if (shmobile_cpu_is_dead(cpu)) - return r8a7779_platform_cpu_kill(cpu); - - mdelay(1); - } - - return 0; -} - - static void __cpuinit r8a7779_secondary_init(unsigned int cpu) { gic_secondary_init(0); @@ -144,9 +94,6 @@ static int __cpuinit r8a7779_boot_secondary(unsigned int cpu, struct task_struct cpu = cpu_logical_map(cpu); - /* enable cache coherency */ - modify_scu_cpu_psr(0, 3 << (cpu * 8)); - if (cpu < ARRAY_SIZE(r8a7779_ch_cpu)) ch = r8a7779_ch_cpu[cpu]; @@ -158,15 +105,13 @@ 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(shmobile_scu_base); - scu_enable(scu_base_addr()); + /* Map the reset vector (in headsmp-scu.S) */ + __raw_writel(__pa(shmobile_secondary_vector_scu), AVECR); - /* Map the reset vector (in headsmp.S) */ - __raw_writel(__pa(shmobile_secondary_vector), AVECR); - - /* enable cache coherency on CPU0 */ - modify_scu_cpu_psr(0, 3 << (cpu * 8)); + /* enable cache coherency on booting CPU */ + scu_power_mode(shmobile_scu_base, SCU_PM_NORMAL); r8a7779_pm_init(); @@ -178,10 +123,60 @@ static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus) static void __init r8a7779_smp_init_cpus(void) { - unsigned int ncores = r8a7779_get_core_count(); + /* setup r8a7779 specific SCU base */ + shmobile_scu_base = IOMEM(R8A7779_SCU_BASE); + + shmobile_smp_init_cpus(scu_get_core_count(shmobile_scu_base)); +} - shmobile_smp_init_cpus(ncores); +#ifdef CONFIG_HOTPLUG_CPU +static int r8a7779_scu_psr_core_disabled(int cpu) +{ + unsigned long mask = 3 << (cpu * 8); + + if ((__raw_readl(shmobile_scu_base + 8) & mask) == mask) + return 1; + + return 0; +} + +static int r8a7779_cpu_kill(unsigned int cpu) +{ + int k; + + /* this function is running on another CPU than the offline target, + * here we need wait for shutdown code in platform_cpu_die() to + * finish before asking SoC-specific code to power off the CPU core. + */ + for (k = 0; k < 1000; k++) { + if (r8a7779_scu_psr_core_disabled(cpu)) + return r8a7779_platform_cpu_kill(cpu); + + mdelay(1); + } + + return 0; +} + +static void r8a7779_cpu_die(unsigned int cpu) +{ + dsb(); + flush_cache_all(); + + /* disable cache coherency */ + scu_power_mode(shmobile_scu_base, SCU_PM_POWEROFF); + + /* Endless loop until power off from r8a7779_cpu_kill() */ + while (1) + cpu_do_idle(); +} + +static int r8a7779_cpu_disable(unsigned int cpu) +{ + /* only CPU1->3 have power domains, do not allow hotplug of CPU0 */ + return cpu == 0 ? -EPERM : 0; } +#endif /* CONFIG_HOTPLUG_CPU */ struct smp_operations r8a7779_smp_ops __initdata = { .smp_init_cpus = r8a7779_smp_init_cpus, @@ -190,7 +185,7 @@ struct smp_operations r8a7779_smp_ops __initdata = { .smp_boot_secondary = r8a7779_boot_secondary, #ifdef CONFIG_HOTPLUG_CPU .cpu_kill = r8a7779_cpu_kill, - .cpu_die = shmobile_cpu_die, - .cpu_disable = shmobile_cpu_disable, + .cpu_die = r8a7779_cpu_die, + .cpu_disable = r8a7779_cpu_disable, #endif }; diff --git a/arch/arm/mach-shmobile/smp-sh73a0.c b/arch/arm/mach-shmobile/smp-sh73a0.c index acb46a94ccdf..5ae502b16437 100644 --- a/arch/arm/mach-shmobile/smp-sh73a0.c +++ b/arch/arm/mach-shmobile/smp-sh73a0.c @@ -39,26 +39,16 @@ #define PSTR_SHUTDOWN_MODE 3 -static void __iomem *scu_base_addr(void) -{ - return (void __iomem *)0xf0000000; -} +#define SH73A0_SCU_BASE 0xf0000000 #ifdef CONFIG_HAVE_ARM_TWD -static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, 0xf0000600, 29); +static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, SH73A0_SCU_BASE + 0x600, 29); void __init sh73a0_register_twd(void) { twd_local_timer_register(&twd_local_timer); } #endif -static unsigned int __init sh73a0_get_core_count(void) -{ - void __iomem *scu_base = scu_base_addr(); - - return scu_get_core_count(scu_base); -} - static void __cpuinit sh73a0_secondary_init(unsigned int cpu) { gic_secondary_init(0); @@ -78,21 +68,22 @@ static int __cpuinit sh73a0_boot_secondary(unsigned int cpu, struct task_struct static void __init sh73a0_smp_prepare_cpus(unsigned int max_cpus) { - scu_enable(scu_base_addr()); + scu_enable(shmobile_scu_base); - /* Map the reset vector (in headsmp-sh73a0.S) */ + /* Map the reset vector (in headsmp-scu.S) */ __raw_writel(0, APARMBAREA); /* 4k */ - __raw_writel(__pa(sh73a0_secondary_vector), SBAR); + __raw_writel(__pa(shmobile_secondary_vector_scu), SBAR); /* enable cache coherency on booting CPU */ - scu_power_mode(scu_base_addr(), SCU_PM_NORMAL); + scu_power_mode(shmobile_scu_base, SCU_PM_NORMAL); } static void __init sh73a0_smp_init_cpus(void) { - unsigned int ncores = sh73a0_get_core_count(); + /* setup sh73a0 specific SCU base */ + shmobile_scu_base = IOMEM(SH73A0_SCU_BASE); - shmobile_smp_init_cpus(ncores); + shmobile_smp_init_cpus(scu_get_core_count(shmobile_scu_base)); } #ifdef CONFIG_HOTPLUG_CPU @@ -128,11 +119,16 @@ static void sh73a0_cpu_die(unsigned int cpu) flush_cache_all(); /* Set power off mode. This takes the CPU out of the MP cluster */ - scu_power_mode(scu_base_addr(), SCU_PM_POWEROFF); + scu_power_mode(shmobile_scu_base, SCU_PM_POWEROFF); /* Enter shutdown mode */ cpu_do_idle(); } + +static int sh73a0_cpu_disable(unsigned int cpu) +{ + return 0; /* CPU0 and CPU1 supported */ +} #endif /* CONFIG_HOTPLUG_CPU */ struct smp_operations sh73a0_smp_ops __initdata = { @@ -143,6 +139,6 @@ struct smp_operations sh73a0_smp_ops __initdata = { #ifdef CONFIG_HOTPLUG_CPU .cpu_kill = sh73a0_cpu_kill, .cpu_die = sh73a0_cpu_die, - .cpu_disable = shmobile_cpu_disable_any, + .cpu_disable = sh73a0_cpu_disable, #endif }; diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index a350969e5efe..4a33351c25dc 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -25,6 +25,14 @@ config ARM_VIC_NR The maximum number of VICs available in the system, for power management. +config RENESAS_INTC_IRQPIN + bool + select IRQ_DOMAIN + +config RENESAS_IRQC + bool + select IRQ_DOMAIN + config VERSATILE_FPGA_IRQ bool select IRQ_DOMAIN diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index 98e3b87bdf1b..e41ceb9bec22 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -8,4 +8,6 @@ obj-$(CONFIG_ARCH_SUNXI) += irq-sunxi.o obj-$(CONFIG_ARCH_SPEAR3XX) += spear-shirq.o obj-$(CONFIG_ARM_GIC) += irq-gic.o obj-$(CONFIG_ARM_VIC) += irq-vic.o +obj-$(CONFIG_RENESAS_INTC_IRQPIN) += irq-renesas-intc-irqpin.o +obj-$(CONFIG_RENESAS_IRQC) += irq-renesas-irqc.o obj-$(CONFIG_VERSATILE_FPGA_IRQ) += irq-versatile-fpga.o diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c new file mode 100644 index 000000000000..fd5dabc2235d --- /dev/null +++ b/drivers/irqchip/irq-renesas-intc-irqpin.c @@ -0,0 +1,471 @@ +/* + * Renesas INTC External IRQ Pin Driver + * + * Copyright (C) 2013 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/spinlock.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/platform_data/irq-renesas-intc-irqpin.h> + +#define INTC_IRQPIN_MAX 8 /* maximum 8 interrupts per driver instance */ + +#define INTC_IRQPIN_REG_SENSE 0 /* ICRn */ +#define INTC_IRQPIN_REG_PRIO 1 /* INTPRInn */ +#define INTC_IRQPIN_REG_SOURCE 2 /* INTREQnn */ +#define INTC_IRQPIN_REG_MASK 3 /* INTMSKnn */ +#define INTC_IRQPIN_REG_CLEAR 4 /* INTMSKCLRnn */ +#define INTC_IRQPIN_REG_NR 5 + +/* INTC external IRQ PIN hardware register access: + * + * SENSE is read-write 32-bit with 2-bits or 4-bits per IRQ (*) + * PRIO is read-write 32-bit with 4-bits per IRQ (**) + * SOURCE is read-only 32-bit or 8-bit with 1-bit per IRQ (***) + * MASK is write-only 32-bit or 8-bit with 1-bit per IRQ (***) + * CLEAR is write-only 32-bit or 8-bit with 1-bit per IRQ (***) + * + * (*) May be accessed by more than one driver instance - lock needed + * (**) Read-modify-write access by one driver instance - lock needed + * (***) Accessed by one driver instance only - no locking needed + */ + +struct intc_irqpin_iomem { + void __iomem *iomem; + unsigned long (*read)(void __iomem *iomem); + void (*write)(void __iomem *iomem, unsigned long data); + int width; +}; + +struct intc_irqpin_irq { + int hw_irq; + int requested_irq; + int domain_irq; + struct intc_irqpin_priv *p; +}; + +struct intc_irqpin_priv { + struct intc_irqpin_iomem iomem[INTC_IRQPIN_REG_NR]; + struct intc_irqpin_irq irq[INTC_IRQPIN_MAX]; + struct renesas_intc_irqpin_config config; + unsigned int number_of_irqs; + struct platform_device *pdev; + struct irq_chip irq_chip; + struct irq_domain *irq_domain; +}; + +static unsigned long intc_irqpin_read32(void __iomem *iomem) +{ + return ioread32(iomem); +} + +static unsigned long intc_irqpin_read8(void __iomem *iomem) +{ + return ioread8(iomem); +} + +static void intc_irqpin_write32(void __iomem *iomem, unsigned long data) +{ + iowrite32(data, iomem); +} + +static void intc_irqpin_write8(void __iomem *iomem, unsigned long data) +{ + iowrite8(data, iomem); +} + +static inline unsigned long intc_irqpin_read(struct intc_irqpin_priv *p, + int reg) +{ + struct intc_irqpin_iomem *i = &p->iomem[reg]; + + return i->read(i->iomem); +} + +static inline void intc_irqpin_write(struct intc_irqpin_priv *p, + int reg, unsigned long data) +{ + struct intc_irqpin_iomem *i = &p->iomem[reg]; + + i->write(i->iomem, data); +} + +static inline unsigned long intc_irqpin_hwirq_mask(struct intc_irqpin_priv *p, + int reg, int hw_irq) +{ + return BIT((p->iomem[reg].width - 1) - hw_irq); +} + +static inline void intc_irqpin_irq_write_hwirq(struct intc_irqpin_priv *p, + int reg, int hw_irq) +{ + intc_irqpin_write(p, reg, intc_irqpin_hwirq_mask(p, reg, hw_irq)); +} + +static DEFINE_RAW_SPINLOCK(intc_irqpin_lock); /* only used by slow path */ + +static void intc_irqpin_read_modify_write(struct intc_irqpin_priv *p, + int reg, int shift, + int width, int value) +{ + unsigned long flags; + unsigned long tmp; + + raw_spin_lock_irqsave(&intc_irqpin_lock, flags); + + tmp = intc_irqpin_read(p, reg); + tmp &= ~(((1 << width) - 1) << shift); + tmp |= value << shift; + intc_irqpin_write(p, reg, tmp); + + raw_spin_unlock_irqrestore(&intc_irqpin_lock, flags); +} + +static void intc_irqpin_mask_unmask_prio(struct intc_irqpin_priv *p, + int irq, int do_mask) +{ + int bitfield_width = 4; /* PRIO assumed to have fixed bitfield width */ + int shift = (7 - irq) * bitfield_width; /* PRIO assumed to be 32-bit */ + + intc_irqpin_read_modify_write(p, INTC_IRQPIN_REG_PRIO, + shift, bitfield_width, + do_mask ? 0 : (1 << bitfield_width) - 1); +} + +static int intc_irqpin_set_sense(struct intc_irqpin_priv *p, int irq, int value) +{ + int bitfield_width = p->config.sense_bitfield_width; + int shift = (7 - irq) * bitfield_width; /* SENSE assumed to be 32-bit */ + + dev_dbg(&p->pdev->dev, "sense irq = %d, mode = %d\n", irq, value); + + if (value >= (1 << bitfield_width)) + return -EINVAL; + + intc_irqpin_read_modify_write(p, INTC_IRQPIN_REG_SENSE, shift, + bitfield_width, value); + return 0; +} + +static void intc_irqpin_dbg(struct intc_irqpin_irq *i, char *str) +{ + dev_dbg(&i->p->pdev->dev, "%s (%d:%d:%d)\n", + str, i->requested_irq, i->hw_irq, i->domain_irq); +} + +static void intc_irqpin_irq_enable(struct irq_data *d) +{ + struct intc_irqpin_priv *p = irq_data_get_irq_chip_data(d); + int hw_irq = irqd_to_hwirq(d); + + intc_irqpin_dbg(&p->irq[hw_irq], "enable"); + intc_irqpin_irq_write_hwirq(p, INTC_IRQPIN_REG_CLEAR, hw_irq); +} + +static void intc_irqpin_irq_disable(struct irq_data *d) +{ + struct intc_irqpin_priv *p = irq_data_get_irq_chip_data(d); + int hw_irq = irqd_to_hwirq(d); + + intc_irqpin_dbg(&p->irq[hw_irq], "disable"); + intc_irqpin_irq_write_hwirq(p, INTC_IRQPIN_REG_MASK, hw_irq); +} + +static void intc_irqpin_irq_enable_force(struct irq_data *d) +{ + struct intc_irqpin_priv *p = irq_data_get_irq_chip_data(d); + int irq = p->irq[irqd_to_hwirq(d)].requested_irq; + + intc_irqpin_irq_enable(d); + + /* enable interrupt through parent interrupt controller, + * assumes non-shared interrupt with 1:1 mapping + * needed for busted IRQs on some SoCs like sh73a0 + */ + irq_get_chip(irq)->irq_unmask(irq_get_irq_data(irq)); +} + +static void intc_irqpin_irq_disable_force(struct irq_data *d) +{ + struct intc_irqpin_priv *p = irq_data_get_irq_chip_data(d); + int irq = p->irq[irqd_to_hwirq(d)].requested_irq; + + /* disable interrupt through parent interrupt controller, + * assumes non-shared interrupt with 1:1 mapping + * needed for busted IRQs on some SoCs like sh73a0 + */ + irq_get_chip(irq)->irq_mask(irq_get_irq_data(irq)); + intc_irqpin_irq_disable(d); +} + +#define INTC_IRQ_SENSE_VALID 0x10 +#define INTC_IRQ_SENSE(x) (x + INTC_IRQ_SENSE_VALID) + +static unsigned char intc_irqpin_sense[IRQ_TYPE_SENSE_MASK + 1] = { + [IRQ_TYPE_EDGE_FALLING] = INTC_IRQ_SENSE(0x00), + [IRQ_TYPE_EDGE_RISING] = INTC_IRQ_SENSE(0x01), + [IRQ_TYPE_LEVEL_LOW] = INTC_IRQ_SENSE(0x02), + [IRQ_TYPE_LEVEL_HIGH] = INTC_IRQ_SENSE(0x03), + [IRQ_TYPE_EDGE_BOTH] = INTC_IRQ_SENSE(0x04), +}; + +static int intc_irqpin_irq_set_type(struct irq_data *d, unsigned int type) +{ + unsigned char value = intc_irqpin_sense[type & IRQ_TYPE_SENSE_MASK]; + struct intc_irqpin_priv *p = irq_data_get_irq_chip_data(d); + + if (!(value & INTC_IRQ_SENSE_VALID)) + return -EINVAL; + + return intc_irqpin_set_sense(p, irqd_to_hwirq(d), + value ^ INTC_IRQ_SENSE_VALID); +} + +static irqreturn_t intc_irqpin_irq_handler(int irq, void *dev_id) +{ + struct intc_irqpin_irq *i = dev_id; + struct intc_irqpin_priv *p = i->p; + unsigned long bit; + + intc_irqpin_dbg(i, "demux1"); + bit = intc_irqpin_hwirq_mask(p, INTC_IRQPIN_REG_SOURCE, i->hw_irq); + + if (intc_irqpin_read(p, INTC_IRQPIN_REG_SOURCE) & bit) { + intc_irqpin_write(p, INTC_IRQPIN_REG_SOURCE, ~bit); + intc_irqpin_dbg(i, "demux2"); + generic_handle_irq(i->domain_irq); + return IRQ_HANDLED; + } + return IRQ_NONE; +} + +static int intc_irqpin_irq_domain_map(struct irq_domain *h, unsigned int virq, + irq_hw_number_t hw) +{ + struct intc_irqpin_priv *p = h->host_data; + + p->irq[hw].domain_irq = virq; + p->irq[hw].hw_irq = hw; + + intc_irqpin_dbg(&p->irq[hw], "map"); + irq_set_chip_data(virq, h->host_data); + irq_set_chip_and_handler(virq, &p->irq_chip, handle_level_irq); + set_irq_flags(virq, IRQF_VALID); /* kill me now */ + return 0; +} + +static struct irq_domain_ops intc_irqpin_irq_domain_ops = { + .map = intc_irqpin_irq_domain_map, + .xlate = irq_domain_xlate_twocell, +}; + +static int intc_irqpin_probe(struct platform_device *pdev) +{ + struct renesas_intc_irqpin_config *pdata = pdev->dev.platform_data; + struct intc_irqpin_priv *p; + struct intc_irqpin_iomem *i; + struct resource *io[INTC_IRQPIN_REG_NR]; + struct resource *irq; + struct irq_chip *irq_chip; + void (*enable_fn)(struct irq_data *d); + void (*disable_fn)(struct irq_data *d); + const char *name = dev_name(&pdev->dev); + int ret; + int k; + + p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL); + if (!p) { + dev_err(&pdev->dev, "failed to allocate driver data\n"); + ret = -ENOMEM; + goto err0; + } + + /* deal with driver instance configuration */ + if (pdata) + memcpy(&p->config, pdata, sizeof(*pdata)); + if (!p->config.sense_bitfield_width) + p->config.sense_bitfield_width = 4; /* default to 4 bits */ + + p->pdev = pdev; + platform_set_drvdata(pdev, p); + + /* get hold of manadatory IOMEM */ + for (k = 0; k < INTC_IRQPIN_REG_NR; k++) { + io[k] = platform_get_resource(pdev, IORESOURCE_MEM, k); + if (!io[k]) { + dev_err(&pdev->dev, "not enough IOMEM resources\n"); + ret = -EINVAL; + goto err0; + } + } + + /* allow any number of IRQs between 1 and INTC_IRQPIN_MAX */ + for (k = 0; k < INTC_IRQPIN_MAX; k++) { + irq = platform_get_resource(pdev, IORESOURCE_IRQ, k); + if (!irq) + break; + + p->irq[k].p = p; + p->irq[k].requested_irq = irq->start; + } + + p->number_of_irqs = k; + if (p->number_of_irqs < 1) { + dev_err(&pdev->dev, "not enough IRQ resources\n"); + ret = -EINVAL; + goto err0; + } + + /* ioremap IOMEM and setup read/write callbacks */ + for (k = 0; k < INTC_IRQPIN_REG_NR; k++) { + i = &p->iomem[k]; + + switch (resource_size(io[k])) { + case 1: + i->width = 8; + i->read = intc_irqpin_read8; + i->write = intc_irqpin_write8; + break; + case 4: + i->width = 32; + i->read = intc_irqpin_read32; + i->write = intc_irqpin_write32; + break; + default: + dev_err(&pdev->dev, "IOMEM size mismatch\n"); + ret = -EINVAL; + goto err0; + } + + i->iomem = devm_ioremap_nocache(&pdev->dev, io[k]->start, + resource_size(io[k])); + if (!i->iomem) { + dev_err(&pdev->dev, "failed to remap IOMEM\n"); + ret = -ENXIO; + goto err0; + } + } + + /* mask all interrupts using priority */ + for (k = 0; k < p->number_of_irqs; k++) + intc_irqpin_mask_unmask_prio(p, k, 1); + + /* use more severe masking method if requested */ + if (p->config.control_parent) { + enable_fn = intc_irqpin_irq_enable_force; + disable_fn = intc_irqpin_irq_disable_force; + } else { + enable_fn = intc_irqpin_irq_enable; + disable_fn = intc_irqpin_irq_disable; + } + + irq_chip = &p->irq_chip; + irq_chip->name = name; + irq_chip->irq_mask = disable_fn; + irq_chip->irq_unmask = enable_fn; + irq_chip->irq_enable = enable_fn; + irq_chip->irq_disable = disable_fn; + irq_chip->irq_set_type = intc_irqpin_irq_set_type; + irq_chip->flags = IRQCHIP_SKIP_SET_WAKE; + + p->irq_domain = irq_domain_add_simple(pdev->dev.of_node, + p->number_of_irqs, + p->config.irq_base, + &intc_irqpin_irq_domain_ops, p); + if (!p->irq_domain) { + ret = -ENXIO; + dev_err(&pdev->dev, "cannot initialize irq domain\n"); + goto err0; + } + + /* request and set priority on interrupts one by one */ + for (k = 0; k < p->number_of_irqs; k++) { + if (devm_request_irq(&pdev->dev, p->irq[k].requested_irq, + intc_irqpin_irq_handler, + 0, name, &p->irq[k])) { + dev_err(&pdev->dev, "failed to request low IRQ\n"); + ret = -ENOENT; + goto err1; + } + intc_irqpin_mask_unmask_prio(p, k, 0); + } + + dev_info(&pdev->dev, "driving %d irqs\n", p->number_of_irqs); + + /* warn in case of mismatch if irq base is specified */ + if (p->config.irq_base) { + if (p->config.irq_base != p->irq[0].domain_irq) + dev_warn(&pdev->dev, "irq base mismatch (%d/%d)\n", + p->config.irq_base, p->irq[0].domain_irq); + } + + return 0; + +err1: + irq_domain_remove(p->irq_domain); +err0: + return ret; +} + +static int intc_irqpin_remove(struct platform_device *pdev) +{ + struct intc_irqpin_priv *p = platform_get_drvdata(pdev); + + irq_domain_remove(p->irq_domain); + + return 0; +} + +static const struct of_device_id intc_irqpin_dt_ids[] = { + { .compatible = "renesas,intc-irqpin", }, + {}, +}; +MODULE_DEVICE_TABLE(of, intc_irqpin_dt_ids); + +static struct platform_driver intc_irqpin_device_driver = { + .probe = intc_irqpin_probe, + .remove = intc_irqpin_remove, + .driver = { + .name = "renesas_intc_irqpin", + .of_match_table = intc_irqpin_dt_ids, + .owner = THIS_MODULE, + } +}; + +static int __init intc_irqpin_init(void) +{ + return platform_driver_register(&intc_irqpin_device_driver); +} +postcore_initcall(intc_irqpin_init); + +static void __exit intc_irqpin_exit(void) +{ + platform_driver_unregister(&intc_irqpin_device_driver); +} +module_exit(intc_irqpin_exit); + +MODULE_AUTHOR("Magnus Damm"); +MODULE_DESCRIPTION("Renesas INTC External IRQ Pin Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c new file mode 100644 index 000000000000..927bff373aac --- /dev/null +++ b/drivers/irqchip/irq-renesas-irqc.c @@ -0,0 +1,307 @@ +/* + * Renesas IRQC Driver + * + * Copyright (C) 2013 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/spinlock.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/platform_data/irq-renesas-irqc.h> + +#define IRQC_IRQ_MAX 32 /* maximum 32 interrupts per driver instance */ + +#define IRQC_REQ_STS 0x00 +#define IRQC_EN_STS 0x04 +#define IRQC_EN_SET 0x08 +#define IRQC_INT_CPU_BASE(n) (0x000 + ((n) * 0x10)) +#define DETECT_STATUS 0x100 +#define IRQC_CONFIG(n) (0x180 + ((n) * 0x04)) + +struct irqc_irq { + int hw_irq; + int requested_irq; + int domain_irq; + struct irqc_priv *p; +}; + +struct irqc_priv { + void __iomem *iomem; + void __iomem *cpu_int_base; + struct irqc_irq irq[IRQC_IRQ_MAX]; + struct renesas_irqc_config config; + unsigned int number_of_irqs; + struct platform_device *pdev; + struct irq_chip irq_chip; + struct irq_domain *irq_domain; +}; + +static void irqc_dbg(struct irqc_irq *i, char *str) +{ + dev_dbg(&i->p->pdev->dev, "%s (%d:%d:%d)\n", + str, i->requested_irq, i->hw_irq, i->domain_irq); +} + +static void irqc_irq_enable(struct irq_data *d) +{ + struct irqc_priv *p = irq_data_get_irq_chip_data(d); + int hw_irq = irqd_to_hwirq(d); + + irqc_dbg(&p->irq[hw_irq], "enable"); + iowrite32(BIT(hw_irq), p->cpu_int_base + IRQC_EN_SET); +} + +static void irqc_irq_disable(struct irq_data *d) +{ + struct irqc_priv *p = irq_data_get_irq_chip_data(d); + int hw_irq = irqd_to_hwirq(d); + + irqc_dbg(&p->irq[hw_irq], "disable"); + iowrite32(BIT(hw_irq), p->cpu_int_base + IRQC_EN_STS); +} + +#define INTC_IRQ_SENSE_VALID 0x10 +#define INTC_IRQ_SENSE(x) (x + INTC_IRQ_SENSE_VALID) + +static unsigned char irqc_sense[IRQ_TYPE_SENSE_MASK + 1] = { + [IRQ_TYPE_LEVEL_LOW] = INTC_IRQ_SENSE(0x01), + [IRQ_TYPE_LEVEL_HIGH] = INTC_IRQ_SENSE(0x02), + [IRQ_TYPE_EDGE_FALLING] = INTC_IRQ_SENSE(0x04), /* Synchronous */ + [IRQ_TYPE_EDGE_RISING] = INTC_IRQ_SENSE(0x08), /* Synchronous */ + [IRQ_TYPE_EDGE_BOTH] = INTC_IRQ_SENSE(0x0c), /* Synchronous */ +}; + +static int irqc_irq_set_type(struct irq_data *d, unsigned int type) +{ + struct irqc_priv *p = irq_data_get_irq_chip_data(d); + int hw_irq = irqd_to_hwirq(d); + unsigned char value = irqc_sense[type & IRQ_TYPE_SENSE_MASK]; + unsigned long tmp; + + irqc_dbg(&p->irq[hw_irq], "sense"); + + if (!(value & INTC_IRQ_SENSE_VALID)) + return -EINVAL; + + tmp = ioread32(p->iomem + IRQC_CONFIG(hw_irq)); + tmp &= ~0x3f; + tmp |= value ^ INTC_IRQ_SENSE_VALID; + iowrite32(tmp, p->iomem + IRQC_CONFIG(hw_irq)); + return 0; +} + +static irqreturn_t irqc_irq_handler(int irq, void *dev_id) +{ + struct irqc_irq *i = dev_id; + struct irqc_priv *p = i->p; + unsigned long bit = BIT(i->hw_irq); + + irqc_dbg(i, "demux1"); + + if (ioread32(p->iomem + DETECT_STATUS) & bit) { + iowrite32(bit, p->iomem + DETECT_STATUS); + irqc_dbg(i, "demux2"); + generic_handle_irq(i->domain_irq); + return IRQ_HANDLED; + } + return IRQ_NONE; +} + +static int irqc_irq_domain_map(struct irq_domain *h, unsigned int virq, + irq_hw_number_t hw) +{ + struct irqc_priv *p = h->host_data; + + p->irq[hw].domain_irq = virq; + p->irq[hw].hw_irq = hw; + + irqc_dbg(&p->irq[hw], "map"); + irq_set_chip_data(virq, h->host_data); + irq_set_chip_and_handler(virq, &p->irq_chip, handle_level_irq); + set_irq_flags(virq, IRQF_VALID); /* kill me now */ + return 0; +} + +static struct irq_domain_ops irqc_irq_domain_ops = { + .map = irqc_irq_domain_map, + .xlate = irq_domain_xlate_twocell, +}; + +static int irqc_probe(struct platform_device *pdev) +{ + struct renesas_irqc_config *pdata = pdev->dev.platform_data; + struct irqc_priv *p; + struct resource *io; + struct resource *irq; + struct irq_chip *irq_chip; + const char *name = dev_name(&pdev->dev); + int ret; + int k; + + p = kzalloc(sizeof(*p), GFP_KERNEL); + if (!p) { + dev_err(&pdev->dev, "failed to allocate driver data\n"); + ret = -ENOMEM; + goto err0; + } + + /* deal with driver instance configuration */ + if (pdata) + memcpy(&p->config, pdata, sizeof(*pdata)); + + p->pdev = pdev; + platform_set_drvdata(pdev, p); + + /* get hold of manadatory IOMEM */ + io = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!io) { + dev_err(&pdev->dev, "not enough IOMEM resources\n"); + ret = -EINVAL; + goto err1; + } + + /* allow any number of IRQs between 1 and IRQC_IRQ_MAX */ + for (k = 0; k < IRQC_IRQ_MAX; k++) { + irq = platform_get_resource(pdev, IORESOURCE_IRQ, k); + if (!irq) + break; + + p->irq[k].p = p; + p->irq[k].requested_irq = irq->start; + } + + p->number_of_irqs = k; + if (p->number_of_irqs < 1) { + dev_err(&pdev->dev, "not enough IRQ resources\n"); + ret = -EINVAL; + goto err1; + } + + /* ioremap IOMEM and setup read/write callbacks */ + p->iomem = ioremap_nocache(io->start, resource_size(io)); + if (!p->iomem) { + dev_err(&pdev->dev, "failed to remap IOMEM\n"); + ret = -ENXIO; + goto err2; + } + + p->cpu_int_base = p->iomem + IRQC_INT_CPU_BASE(0); /* SYS-SPI */ + + irq_chip = &p->irq_chip; + irq_chip->name = name; + irq_chip->irq_mask = irqc_irq_disable; + irq_chip->irq_unmask = irqc_irq_enable; + irq_chip->irq_enable = irqc_irq_enable; + irq_chip->irq_disable = irqc_irq_disable; + irq_chip->irq_set_type = irqc_irq_set_type; + irq_chip->flags = IRQCHIP_SKIP_SET_WAKE; + + p->irq_domain = irq_domain_add_simple(pdev->dev.of_node, + p->number_of_irqs, + p->config.irq_base, + &irqc_irq_domain_ops, p); + if (!p->irq_domain) { + ret = -ENXIO; + dev_err(&pdev->dev, "cannot initialize irq domain\n"); + goto err2; + } + + /* request interrupts one by one */ + for (k = 0; k < p->number_of_irqs; k++) { + if (request_irq(p->irq[k].requested_irq, irqc_irq_handler, + 0, name, &p->irq[k])) { + dev_err(&pdev->dev, "failed to request IRQ\n"); + ret = -ENOENT; + goto err3; + } + } + + dev_info(&pdev->dev, "driving %d irqs\n", p->number_of_irqs); + + /* warn in case of mismatch if irq base is specified */ + if (p->config.irq_base) { + if (p->config.irq_base != p->irq[0].domain_irq) + dev_warn(&pdev->dev, "irq base mismatch (%d/%d)\n", + p->config.irq_base, p->irq[0].domain_irq); + } + + return 0; +err3: + for (; k >= 0; k--) + free_irq(p->irq[k - 1].requested_irq, &p->irq[k - 1]); + + irq_domain_remove(p->irq_domain); +err2: + iounmap(p->iomem); +err1: + kfree(p); +err0: + return ret; +} + +static int irqc_remove(struct platform_device *pdev) +{ + struct irqc_priv *p = platform_get_drvdata(pdev); + int k; + + for (k = 0; k < p->number_of_irqs; k++) + free_irq(p->irq[k].requested_irq, &p->irq[k]); + + irq_domain_remove(p->irq_domain); + iounmap(p->iomem); + kfree(p); + return 0; +} + +static const struct of_device_id irqc_dt_ids[] = { + { .compatible = "renesas,irqc", }, + {}, +}; +MODULE_DEVICE_TABLE(of, irqc_dt_ids); + +static struct platform_driver irqc_device_driver = { + .probe = irqc_probe, + .remove = irqc_remove, + .driver = { + .name = "renesas_irqc", + .of_match_table = irqc_dt_ids, + .owner = THIS_MODULE, + } +}; + +static int __init irqc_init(void) +{ + return platform_driver_register(&irqc_device_driver); +} +postcore_initcall(irqc_init); + +static void __exit irqc_exit(void) +{ + platform_driver_unregister(&irqc_device_driver); +} +module_exit(irqc_exit); + +MODULE_AUTHOR("Magnus Damm"); +MODULE_DESCRIPTION("Renesas IRQC Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/pinctrl/sh-pfc/pfc-sh73a0.c b/drivers/pinctrl/sh-pfc/pfc-sh73a0.c index 709008e94124..6f15c03077a0 100644 --- a/drivers/pinctrl/sh-pfc/pfc-sh73a0.c +++ b/drivers/pinctrl/sh-pfc/pfc-sh73a0.c @@ -2733,9 +2733,9 @@ static struct pinmux_data_reg pinmux_data_regs[] = { { }, }; -/* IRQ pins through INTCS with IRQ0->15 from 0x200 and IRQ16-31 from 0x3200 */ -#define EXT_IRQ16L(n) intcs_evt2irq(0x200 + ((n) << 5)) -#define EXT_IRQ16H(n) intcs_evt2irq(0x3200 + ((n - 16) << 5)) +/* External IRQ pins mapped at IRQPIN_BASE */ +#define EXT_IRQ16L(n) irq_pin(n) +#define EXT_IRQ16H(n) irq_pin(n) static struct pinmux_irq pinmux_irqs[] = { PINMUX_IRQ(EXT_IRQ16H(19), PORT9_FN0), diff --git a/include/linux/platform_data/irq-renesas-intc-irqpin.h b/include/linux/platform_data/irq-renesas-intc-irqpin.h new file mode 100644 index 000000000000..e4cb911066a6 --- /dev/null +++ b/include/linux/platform_data/irq-renesas-intc-irqpin.h @@ -0,0 +1,29 @@ +/* + * Renesas INTC External IRQ Pin Driver + * + * Copyright (C) 2013 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __IRQ_RENESAS_INTC_IRQPIN_H__ +#define __IRQ_RENESAS_INTC_IRQPIN_H__ + +struct renesas_intc_irqpin_config { + unsigned int sense_bitfield_width; + unsigned int irq_base; + bool control_parent; +}; + +#endif /* __IRQ_RENESAS_INTC_IRQPIN_H__ */ diff --git a/include/linux/platform_data/irq-renesas-irqc.h b/include/linux/platform_data/irq-renesas-irqc.h new file mode 100644 index 000000000000..3ae17b3e00ed --- /dev/null +++ b/include/linux/platform_data/irq-renesas-irqc.h @@ -0,0 +1,27 @@ +/* + * Renesas IRQC Driver + * + * Copyright (C) 2013 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __IRQ_RENESAS_IRQC_H__ +#define __IRQ_RENESAS_IRQC_H__ + +struct renesas_irqc_config { + unsigned int irq_base; +}; + +#endif /* __IRQ_RENESAS_IRQC_H__ */ |