[ramips] share common INTC code

SVN-Revision: 17440

diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/common.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/common.h
new file mode 100644 (file)
index 0000000..a045087
--- /dev/null
+++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/common.h
@@ -0,0 +1,16 @@
+/*
+ *  Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  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.
+ */
+
+#ifndef __ASM_MACH_RALINK_COMMON_H
+#define __ASM_MACH_RALINK_COMMON_H
+
+void __init ramips_intc_irq_init(unsigned intc_base, unsigned irq,
+                                unsigned irq_base);
+u32 ramips_intc_get_status(void);
+
+#endif /* __ASM_MACH_RALINK_COMMON_H */

diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x.h
index 9b218de025cb25fc91c7472bf31d46a23b14da92..4e0e36e8ecc6fdb083a0ed5a86faf688b98989b5 100644 (file)
--- a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x.h
+++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x.h
@@ -53,7 +53,6 @@ extern unsigned long rt288x_mach_type;
 #define RT288X_GPIO_COUNT      32
 
 extern void __iomem *rt288x_sysc_base;
-extern void __iomem *rt288x_intc_base;
 extern void __iomem *rt288x_memc_base;
 
 static inline void rt288x_sysc_wr(u32 val, unsigned reg)
@@ -66,16 +65,6 @@ static inline u32 rt288x_sysc_rr(unsigned reg)
        return __raw_readl(rt288x_sysc_base + reg);
 }
 
-static inline void rt288x_intc_wr(u32 val, unsigned reg)
-{
-       __raw_writel(val, rt288x_intc_base + reg);
-}
-
-static inline u32 rt288x_intc_rr(unsigned reg)
-{
-       return __raw_readl(rt288x_intc_base + reg);
-}
-
 static inline void rt288x_memc_wr(u32 val, unsigned reg)
 {
        __raw_writel(val, rt288x_memc_base + reg);

diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x_regs.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x_regs.h
index 4431a65df8ad737940dfbdd3304d7517b91f0537..98308ffe018710e940b5d8825b2d87d7e1273416 100644 (file)
--- a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x_regs.h
+++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x_regs.h
@@ -75,16 +75,6 @@
 #define RT2880_RESET_FE                BIT(18)
 #define RT2880_RESET_PCM       BIT(19)
 
-/* TIMER registers */
-
-/* INTC register */
-#define INTC_REG_STATUS0       0x00
-#define INTC_REG_STATUS1       0x04
-#define INTC_REG_TYPE          0x20
-#define INTC_REG_RAW_STATUS    0x30
-#define INTC_REG_ENABLE                0x34
-#define INTC_REG_DISABLE       0x38
-
 #define RT2880_INTC_INT_TIMER0 BIT(0)
 #define RT2880_INTC_INT_TIMER1 BIT(1)
 #define RT2880_INTC_INT_UART0  BIT(2)

diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x.h
index 7dcef168a928fc9987293b98e323f5c16876ea24..c94f28c45ed2f5d878de250732569e3a1fbf0009 100644 (file)
--- a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x.h
+++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x.h
@@ -55,7 +55,6 @@ extern unsigned long rt305x_sys_freq;
 #define RT305X_INTC_IRQ_OTG    (RT305X_INTC_IRQ_BASE + 18)
 
 extern void __iomem *rt305x_sysc_base;
-extern void __iomem *rt305x_intc_base;
 extern void __iomem *rt305x_memc_base;
 
 static inline void rt305x_sysc_wr(u32 val, unsigned reg)
@@ -68,16 +67,6 @@ static inline u32 rt305x_sysc_rr(unsigned reg)
        return __raw_readl(rt305x_sysc_base + reg);
 }
 
-static inline void rt305x_intc_wr(u32 val, unsigned reg)
-{
-       __raw_writel(val, rt305x_intc_base + reg);
-}
-
-static inline u32 rt305x_intc_rr(unsigned reg)
-{
-       return __raw_readl(rt305x_intc_base + reg);
-}
-
 static inline void rt305x_memc_wr(u32 val, unsigned reg)
 {
        __raw_writel(val, rt305x_memc_base + reg);

diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h
index 7dd9765b80383d68569c2927d38f8bef897e154f..139dc92e5446d5930c74d734a9b5e6ee1401596a 100644 (file)
--- a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h
+++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h
@@ -79,16 +79,6 @@
 #define RT305X_RESET_OTG       BIT(22)
 #define RT305X_RESET_ESW       BIT(23)
 
-/* TIMER registers */
-
-/* INTC register */
-#define INTC_REG_STATUS0       0x00
-#define INTC_REG_STATUS1       0x04
-#define INTC_REG_TYPE          0x20
-#define INTC_REG_RAW_STATUS    0x30
-#define INTC_REG_ENABLE                0x34
-#define INTC_REG_DISABLE       0x38
-
 #define RT305X_INTC_INT_SYSCTL BIT(0)
 #define RT305X_INTC_INT_TIMER0 BIT(1)
 #define RT305X_INTC_INT_TIMER1 BIT(2)

diff --git a/target/linux/ramips/files/arch/mips/ralink/common/Makefile b/target/linux/ramips/files/arch/mips/ralink/common/Makefile
new file mode 100644 (file)
index 0000000..2816a67
--- /dev/null
+++ b/target/linux/ramips/files/arch/mips/ralink/common/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the Ralink common stuff
+#
+# Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
+#
+# 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.
+
+obj-y  := intc.o

diff --git a/target/linux/ramips/files/arch/mips/ralink/common/intc.c b/target/linux/ramips/files/arch/mips/ralink/common/intc.c
new file mode 100644 (file)
index 0000000..da3ecd4
--- /dev/null
+++ b/target/linux/ramips/files/arch/mips/ralink/common/intc.c
@@ -0,0 +1,98 @@
+/*
+ * Ralink SoC Interrupt controller routines
+ *
+ * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * 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/init.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/bitops.h>
+
+#include <asm/irq_cpu.h>
+#include <asm/mipsregs.h>
+
+#include <asm/mach-ralink/common.h>
+
+/* INTC register offsets */
+#define INTC_REG_STATUS0       0x00
+#define INTC_REG_STATUS1       0x04
+#define INTC_REG_TYPE          0x20
+#define INTC_REG_RAW_STATUS    0x30
+#define INTC_REG_ENABLE                0x34
+#define INTC_REG_DISABLE       0x38
+
+#define INTC_INT_GLOBAL                BIT(31)
+#define INTC_IRQ_COUNT         32
+
+static unsigned int ramips_intc_irq_base;
+static void __iomem *ramips_intc_base;
+
+static inline void ramips_intc_wr(u32 val, unsigned reg)
+{
+       __raw_writel(val, ramips_intc_base + reg);
+}
+
+static inline u32 ramips_intc_rr(unsigned reg)
+{
+       return __raw_readl(ramips_intc_base + reg);
+}
+
+static void ramips_intc_irq_unmask(unsigned int irq)
+{
+       irq -= ramips_intc_irq_base;
+       ramips_intc_wr((1 << irq), INTC_REG_ENABLE);
+}
+
+static void ramips_intc_irq_mask(unsigned int irq)
+{
+       irq -= ramips_intc_irq_base;
+       ramips_intc_wr((1 << irq), INTC_REG_DISABLE);
+}
+
+static struct irq_chip ramips_intc_irq_chip = {
+       .name           = "INTC",
+       .unmask         = ramips_intc_irq_unmask,
+       .mask           = ramips_intc_irq_mask,
+       .mask_ack       = ramips_intc_irq_mask,
+};
+
+static struct irqaction ramips_intc_irqaction = {
+       .handler        = no_action,
+       .name           = "cascade [INTC]",
+};
+
+void __init ramips_intc_irq_init(unsigned intc_base, unsigned irq,
+                                unsigned irq_base)
+{
+       int i;
+
+       ramips_intc_base = ioremap_nocache(intc_base, PAGE_SIZE);
+       ramips_intc_irq_base = irq_base;
+
+       /* disable all interrupts */
+       ramips_intc_wr(~0, INTC_REG_DISABLE);
+
+       /* route all INTC interrupts to MIPS HW0 interrupt */
+       ramips_intc_wr(0, INTC_REG_TYPE);
+
+       for (i = ramips_intc_irq_base;
+            i < ramips_intc_irq_base + INTC_IRQ_COUNT; i++) {
+               set_irq_chip_and_handler(i, &ramips_intc_irq_chip,
+                                        handle_level_irq);
+       }
+
+       setup_irq(irq, &ramips_intc_irqaction);
+       ramips_intc_wr(INTC_INT_GLOBAL, INTC_REG_ENABLE);
+}
+
+u32 ramips_intc_get_status(void)
+{
+       return ramips_intc_rr(INTC_REG_STATUS0);
+}

diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/irq.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/irq.c
index 47a53740092c3b9e0524a77c902e03752f2209e0..5465a4560dbfc220ffb5f089f45cb7421ea29fa7 100644 (file)
--- a/target/linux/ramips/files/arch/mips/ralink/rt288x/irq.c
+++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/irq.c
@@ -17,6 +17,7 @@
 #include <asm/irq_cpu.h>
 #include <asm/mipsregs.h>
 
+#include <asm/mach-ralink/common.h>
 #include <asm/mach-ralink/rt288x.h>
 #include <asm/mach-ralink/rt288x_regs.h>
 
@@ -24,7 +25,7 @@ static void rt288x_intc_irq_dispatch(void)
 {
        u32 pending;
 
-       pending = rt288x_intc_rr(INTC_REG_STATUS0);
+       pending = ramips_intc_get_status();
 
        if (pending & RT2880_INTC_INT_TIMER0)
                do_IRQ(RT2880_INTC_IRQ_TIMER0);
@@ -47,52 +48,6 @@ static void rt288x_intc_irq_dispatch(void)
                spurious_interrupt();
 }
 
-static void rt288x_intc_irq_unmask(unsigned int irq)
-{
-       irq -= RT288X_INTC_IRQ_BASE;
-       rt288x_intc_wr((1 << irq), INTC_REG_ENABLE);
-}
-
-static void rt288x_intc_irq_mask(unsigned int irq)
-{
-       irq -= RT288X_INTC_IRQ_BASE;
-       rt288x_intc_wr((1 << irq), INTC_REG_DISABLE);
-}
-
-struct irq_chip rt288x_intc_irq_chip = {
-       .name           = "RT288X INTC",
-       .unmask         = rt288x_intc_irq_unmask,
-       .mask           = rt288x_intc_irq_mask,
-       .mask_ack       = rt288x_intc_irq_mask,
-};
-
-static struct irqaction rt288x_intc_irqaction = {
-       .handler        = no_action,
-       .name           = "cascade [RT288X INTC]",
-};
-
-static void __init rt288x_intc_irq_init(void)
-{
-       int i;
-
-       /* disable all interrupts */
-       rt288x_intc_wr(~0, INTC_REG_DISABLE);
-
-       /* route all INTC interrupts to MIPS HW0 interrupt */
-       rt288x_intc_wr(0, INTC_REG_TYPE);
-
-       for (i = RT288X_INTC_IRQ_BASE;
-            i < RT288X_INTC_IRQ_BASE + RT288X_INTC_IRQ_COUNT; i++) {
-               irq_desc[i].status = IRQ_DISABLED;
-               set_irq_chip_and_handler(i, &rt288x_intc_irq_chip,
-                                        handle_level_irq);
-       }
-
-       setup_irq(RT288X_CPU_IRQ_INTC, &rt288x_intc_irqaction);
-
-       rt288x_intc_wr(RT2880_INTC_INT_GLOBAL, INTC_REG_ENABLE);
-}
-
 asmlinkage void plat_irq_dispatch(void)
 {
        unsigned long pending;
@@ -121,5 +76,6 @@ asmlinkage void plat_irq_dispatch(void)
 void __init arch_init_irq(void)
 {
        mips_cpu_irq_init();
-       rt288x_intc_irq_init();
+       ramips_intc_irq_init(RT2880_INTC_BASE, RT288X_CPU_IRQ_INTC,
+                            RT288X_INTC_IRQ_BASE);
 }

diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c
index cd429a1c05a6d1ce4b13da0088518bf93b55f1e0..0c47df814138351786f48ba0550dfbfe6a6993b2 100644 (file)
--- a/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c
+++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c
@@ -26,7 +26,6 @@ EXPORT_SYMBOL_GPL(rt288x_cpu_freq);
 unsigned long rt288x_sys_freq;
 EXPORT_SYMBOL_GPL(rt288x_sys_freq);
 
-void __iomem * rt288x_intc_base;
 void __iomem * rt288x_sysc_base;
 void __iomem * rt288x_memc_base;
 

diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c
index 186db29d11caaf728336c952a282fc5c0c6b603b..d19105f54615338b4969b3342e4478e07ca44beb 100644 (file)
--- a/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c
+++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c
@@ -108,7 +108,6 @@ void __init plat_mem_setup(void)
 {
        set_io_port_base(KSEG1);
 
-       rt288x_intc_base = ioremap_nocache(RT2880_INTC_BASE, RT2880_INTC_SIZE);
        rt288x_sysc_base = ioremap_nocache(RT2880_SYSC_BASE, RT2880_SYSC_SIZE);
        rt288x_memc_base = ioremap_nocache(RT2880_MEMC_BASE, RT2880_MEMC_SIZE);
 

diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/irq.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/irq.c
index 168b2390b9780499177684dfffc521d7aaa2c320..acd1880f5cab3fd3fffecef5e7b164e79c6a59aa 100644 (file)
--- a/target/linux/ramips/files/arch/mips/ralink/rt305x/irq.c
+++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/irq.c
@@ -16,6 +16,7 @@
 #include <asm/irq_cpu.h>
 #include <asm/mipsregs.h>
 
+#include <asm/mach-ralink/common.h>
 #include <asm/mach-ralink/rt305x.h>
 #include <asm/mach-ralink/rt305x_regs.h>
 
@@ -23,7 +24,7 @@ static void rt305x_intc_irq_dispatch(void)
 {
        u32 pending;
 
-       pending = rt305x_intc_rr(INTC_REG_STATUS0);
+       pending = ramips_intc_get_status();
 
        if (pending & RT305X_INTC_INT_TIMER0)
                do_IRQ(RT305X_INTC_IRQ_TIMER0);
@@ -43,52 +44,6 @@ static void rt305x_intc_irq_dispatch(void)
                spurious_interrupt();
 }
 
-static void rt305x_intc_irq_unmask(unsigned int irq)
-{
-       irq -= RT305X_INTC_IRQ_BASE;
-       rt305x_intc_wr((1 << irq), INTC_REG_ENABLE);
-}
-
-static void rt305x_intc_irq_mask(unsigned int irq)
-{
-       irq -= RT305X_INTC_IRQ_BASE;
-       rt305x_intc_wr((1 << irq), INTC_REG_DISABLE);
-}
-
-struct irq_chip rt305x_intc_irq_chip = {
-       .name           = "RT305X INTC",
-       .unmask         = rt305x_intc_irq_unmask,
-       .mask           = rt305x_intc_irq_mask,
-       .mask_ack       = rt305x_intc_irq_mask,
-};
-
-static struct irqaction rt305x_intc_irqaction = {
-       .handler        = no_action,
-       .name           = "cascade [RT305X INTC]",
-};
-
-static void __init rt305x_intc_irq_init(void)
-{
-       int i;
-
-       /* disable all interrupts */
-       rt305x_intc_wr(~0, INTC_REG_DISABLE);
-
-       /* route all INTC interrupts to MIPS HW0 interrupt */
-       rt305x_intc_wr(0, INTC_REG_TYPE);
-
-       for (i = RT305X_INTC_IRQ_BASE;
-            i < RT305X_INTC_IRQ_BASE + RT305X_INTC_IRQ_COUNT; i++) {
-               set_irq_chip_and_handler(i, &rt305x_intc_irq_chip,
-                                        handle_level_irq);
-       }
-
-       setup_irq(RT305X_CPU_IRQ_INTC, &rt305x_intc_irqaction);
-
-       /* enable interrupt masking */
-       rt305x_intc_wr(RT305X_INTC_INT_GLOBAL, INTC_REG_ENABLE);
-}
-
 asmlinkage void plat_irq_dispatch(void)
 {
        unsigned long pending;
@@ -114,5 +69,6 @@ asmlinkage void plat_irq_dispatch(void)
 void __init arch_init_irq(void)
 {
        mips_cpu_irq_init();
-       rt305x_intc_irq_init();
+       ramips_intc_irq_init(RT305X_INTC_BASE, RT305X_CPU_IRQ_INTC,
+                            RT305X_INTC_IRQ_BASE);
 }

diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/rt305x.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/rt305x.c
index 9d940a2f541be2556748ac56c8ee65981dbfd907..b2ab3cdf50ea9bf1ed701b5ef87ec6c5a281a047 100644 (file)
--- a/target/linux/ramips/files/arch/mips/ralink/rt305x/rt305x.c
+++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/rt305x.c
@@ -26,7 +26,6 @@ EXPORT_SYMBOL_GPL(rt305x_cpu_freq);
 unsigned long rt305x_sys_freq;
 EXPORT_SYMBOL_GPL(rt305x_sys_freq);
 
-void __iomem * rt305x_intc_base;
 void __iomem * rt305x_sysc_base;
 void __iomem * rt305x_memc_base;
 

diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/setup.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/setup.c
index 4af495b78b54bc60791ae3600d202acb5aca4ab1..d574ef650e8cc86206bc19457b9d8a478aa3a0f9 100644 (file)
--- a/target/linux/ramips/files/arch/mips/ralink/rt305x/setup.c
+++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/setup.c
@@ -103,7 +103,6 @@ void __init plat_mem_setup(void)
 {
        set_io_port_base(KSEG1);
 
-       rt305x_intc_base = ioremap_nocache(RT305X_INTC_BASE, PAGE_SIZE);
        rt305x_sysc_base = ioremap_nocache(RT305X_SYSC_BASE, PAGE_SIZE);
        rt305x_memc_base = ioremap_nocache(RT305X_MEMC_BASE, PAGE_SIZE);
 

diff --git a/target/linux/ramips/patches-2.6.30/100-mips-ralink-core.patch b/target/linux/ramips/patches-2.6.30/100-mips-ralink-core.patch
index 71d11c47a57575264d4ceddaaef62378db1baa7f..a3e5e456547aeedd2a367445218ce343a2924513 100644 (file)
--- a/target/linux/ramips/patches-2.6.30/100-mips-ralink-core.patch
+++ b/target/linux/ramips/patches-2.6.30/100-mips-ralink-core.patch
@@ -1,21 +1,25 @@
 --- a/arch/mips/Makefile
 +++ b/arch/mips/Makefile
-@@ -603,6 +603,20 @@ else
+@@ -603,6 +603,24 @@ else
  load-$(CONFIG_CPU_CAVIUM_OCTEON)      += 0xffffffff81100000
  endif
  
++#
++# Ralink SoC common stuff
++#
++core-$(CONFIG_MIPS_RALINK)    += arch/mips/ralink/common/
++cflags-$(CONFIG_MIPS_RALINK)  += -I$(srctree)/arch/mips/include/asm/mach-ralink
++
 +#
 +# Ralink RT288x
 +#
 +core-$(CONFIG_RALINK_RT288X)  += arch/mips/ralink/rt288x/
-+cflags-$(CONFIG_RALINK_RT288X)        += -I$(srctree)/arch/mips/include/asm/mach-ralink 
 +load-$(CONFIG_RALINK_RT288X)  += 0xffffffff88000000
 +
 +#
 +# Ralink RT305x
 +#
 +core-$(CONFIG_RALINK_RT305X)  += arch/mips/ralink/rt305x/
-+cflags-$(CONFIG_RALINK_RT305X)        += -I$(srctree)/arch/mips/include/asm/mach-ralink
 +load-$(CONFIG_RALINK_RT305X)  += 0xffffffff80000000
 +
  # temporary until string.h is fixed