sh: intc - add support for SH7706, SH7707, SH7708, SH7709

This patch unifies the cpu specific interrupt setup code for
sh7706, sh7707, sh7708 and sh7709 and moves the code into a new
file called setup-sh770x.c.  It makes sense to share the setup code
between these processors because most hardware blocks are identical
from a software point of view. With this patch the sh770x processors
now have a complete set of vectors that match with the information
provided by the data sheets. This is a big improvement for sh7708.

Vectors for IRQ4 and IRQ5 are enabled by default. Use
plat_irq_setup_pins() if pins IRQ0-3 should be used in IRQ mode.

This patch also unifies the platform device setup code which means
that the rtc driver now has platform data for all sh770x processors.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/arch/sh/kernel/cpu/sh3/Makefile b/arch/sh/kernel/cpu/sh3/Makefile
index 55b750763f66765729c024abeee4d0499b6f6a3e..cd2a35270e30f833384de1c6aaed982f920a497d 100644 (file)
--- a/arch/sh/kernel/cpu/sh3/Makefile
+++ b/arch/sh/kernel/cpu/sh3/Makefile
@@ -6,10 +6,10 @@ obj-y := ex.o probe.o entry.o
 
 # CPU subtype setup
 obj-$(CONFIG_CPU_SUBTYPE_SH7705)       += setup-sh7705.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7706)       += setup-sh7709.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7707)       += setup-sh7709.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7708)       += setup-sh7708.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7709)       += setup-sh7709.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7706)       += setup-sh770x.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7707)       += setup-sh770x.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7708)       += setup-sh770x.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7709)       += setup-sh770x.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7710)       += setup-sh7710.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7712)       += setup-sh7710.o
 

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7708.c b/arch/sh/kernel/cpu/sh3/setup-sh7708.c
deleted file mode 100644 (file)
index f933723..0000000
--- a/arch/sh/kernel/cpu/sh3/setup-sh7708.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * SH7708 Setup
- *
- *  Copyright (C) 2006  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/serial.h>
-#include <asm/sci.h>
-
-static struct plat_sci_port sci_platform_data[] = {
-       {
-               .mapbase        = 0xfffffe80,
-               .flags          = UPF_BOOT_AUTOCONF,
-               .type           = PORT_SCI,
-               .irqs           = { 23, 24, 25, 0 },
-       }, {
-               .flags = 0,
-       }
-};
-
-static struct platform_device sci_device = {
-       .name           = "sh-sci",
-       .id             = -1,
-       .dev            = {
-               .platform_data  = sci_platform_data,
-       },
-};
-
-static struct platform_device *sh7708_devices[] __initdata = {
-       &sci_device,
-};
-
-static int __init sh7708_devices_setup(void)
-{
-       return platform_add_devices(sh7708_devices,
-                                   ARRAY_SIZE(sh7708_devices));
-}
-__initcall(sh7708_devices_setup);

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7709.c b/arch/sh/kernel/cpu/sh3/setup-sh7709.c
deleted file mode 100644 (file)
index 086f8e2..0000000
--- a/arch/sh/kernel/cpu/sh3/setup-sh7709.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * SH7707/SH7709 Setup
- *
- *  Copyright (C) 2006  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/serial.h>
-#include <asm/sci.h>
-
-static struct resource rtc_resources[] = {
-       [0] =   {
-               .start  = 0xfffffec0,
-               .end    = 0xfffffec0 + 0x1e,
-               .flags  = IORESOURCE_IO,
-       },
-       [1] =   {
-               .start  = 20,
-               .flags  = IORESOURCE_IRQ,
-       },
-       [2] =   {
-               .start  = 21,
-               .flags  = IORESOURCE_IRQ,
-       },
-       [3] =   {
-               .start  = 22,
-               .flags  = IORESOURCE_IRQ,
-       },
-};
-
-static struct plat_sci_port sci_platform_data[] = {
-       {
-               .mapbase        = 0xfffffe80,
-               .flags          = UPF_BOOT_AUTOCONF,
-               .type           = PORT_SCI,
-               .irqs           = { 23, 24, 25, 0 },
-       }, {
-               .mapbase        = 0xa4000150,
-               .flags          = UPF_BOOT_AUTOCONF,
-               .type           = PORT_SCIF,
-               .irqs           = { 56, 57, 59, 58 },
-       }, {
-               .mapbase        = 0xa4000140,
-               .flags          = UPF_BOOT_AUTOCONF,
-               .type           = PORT_IRDA,
-               .irqs           = { 52, 53, 55, 54 },
-       }, {
-               .flags = 0,
-       }
-};
-
-static struct platform_device sci_device = {
-       .name           = "sh-sci",
-       .id             = -1,
-       .dev            = {
-               .platform_data  = sci_platform_data,
-       },
-};
-
-static struct platform_device rtc_device = {
-       .name           = "sh-rtc",
-       .id             = -1,
-       .num_resources  = ARRAY_SIZE(rtc_resources),
-       .resource       = rtc_resources,
-};
-
-static struct platform_device *sh7709_devices[] __initdata = {
-       &sci_device,
-       &rtc_device,
-};
-
-static int __init sh7709_devices_setup(void)
-{
-       return platform_add_devices(sh7709_devices,
-               ARRAY_SIZE(sh7709_devices));
-}
-__initcall(sh7709_devices_setup);
-
-static struct ipr_data ipr_irq_table[] = {
-       { 16, 0, 12, 2 }, /* TMU TUNI0 */
-       { 17, 0, 8,  4 }, /* TMU TUNI1 */
-       { 18, 0, 4,  1 }, /* TMU TUNI1 */
-       { 19, 0, 4,  1 }, /* TMU TUNI1 */
-       { 20, 0, 0,  2 }, /* RTC CUI */
-       { 21, 0, 0,  2 }, /* RTC CUI */
-       { 22, 0, 0,  2 }, /* RTC CUI */
-
-       { 23, 1, 4,  3 }, /* SCI */
-       { 24, 1, 4,  3 }, /* SCI */
-       { 25, 1, 4,  3 }, /* SCI */
-       { 26, 1, 4,  3 }, /* SCI */
-       { 27, 1, 12, 3 }, /* WDT ITI */
-
-       { 32, 2, 0,  1 }, /* IRQ 0 */
-       { 33, 2, 4,  1 }, /* IRQ 1 */
-       { 34, 2, 8,  1 }, /* IRQ 2 APM */
-       { 35, 2, 12, 1 }, /* IRQ 3 TOUCHSCREEN */
-
-       { 36, 3, 0,  1 }, /* IRQ 4 */
-       { 37, 3, 4,  1 }, /* IRQ 5 */
-
-       { 48, 4, 12, 7 }, /* DMA */
-       { 49, 4, 12, 7 }, /* DMA */
-       { 50, 4, 12, 7 }, /* DMA */
-       { 51, 4, 12, 7 }, /* DMA */
-
-       { 52, 4, 8,  3 }, /* IRDA */
-       { 53, 4, 8,  3 }, /* IRDA */
-       { 54, 4, 8,  3 }, /* IRDA */
-       { 55, 4, 8,  3 }, /* IRDA */
-
-       { 56, 4, 4,  3 }, /* SCIF */
-       { 57, 4, 4,  3 }, /* SCIF */
-       { 58, 4, 4,  3 }, /* SCIF */
-       { 59, 4, 4,  3 }, /* SCIF */
-};
-
-static unsigned long ipr_offsets[] = {
-       0xfffffee2,     /* 0: IPRA */
-       0xfffffee4,     /* 1: IPRB */
-       0xa4000016,     /* 2: IPRC */
-       0xa4000018,     /* 3: IPRD */
-       0xa400001a,     /* 4: IPRE */
-};
-
-static struct ipr_desc ipr_irq_desc = {
-       .ipr_offsets    = ipr_offsets,
-       .nr_offsets     = ARRAY_SIZE(ipr_offsets),
-
-       .ipr_data       = ipr_irq_table,
-       .nr_irqs        = ARRAY_SIZE(ipr_irq_table),
-
-       .chip = {
-               .name   = "IPR-sh7709",
-       },
-};
-
-void __init plat_irq_setup(void)
-{
-       register_ipr_controller(&ipr_irq_desc);
-}

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
new file mode 100644 (file)
index 0000000..68fc037
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -0,0 +1,212 @@
+/*
+ * SH3 Setup code for SH7706, SH7707, SH7708, SH7709
+ *
+ *  Copyright (C) 2007  Magnus Damm
+ *
+ * Based on setup-sh7709.c
+ *
+ *  Copyright (C) 2006  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/serial.h>
+#include <asm/sci.h>
+
+enum {
+       UNUSED = 0,
+
+       /* interrupt sources */
+       IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5,
+       PINT07, PINT815,
+       DMAC_DEI0, DMAC_DEI1, DMAC_DEI2, DMAC_DEI3,
+       SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI,
+       SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI,
+       SCI_ERI, SCI_RXI, SCI_TXI, SCI_TEI,
+       ADC_ADI,
+       TMU0, TMU1, TMU2_TUNI, TMU2_TICPI,
+       RTC_ATI, RTC_PRI, RTC_CUI,
+       WDT,
+       REF_RCMI, REF_ROVI,
+
+       /* interrupt groups */
+       RTC, REF, TMU2, DMAC, SCI, SCIF2, SCIF0,
+};
+
+static struct intc_vect vectors[] = {
+       INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
+       INTC_VECT(TMU2_TUNI, 0x440), INTC_VECT(TMU2_TICPI, 0x460),
+       INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0),
+       INTC_VECT(RTC_CUI, 0x4c0),
+       INTC_VECT(SCI_ERI, 0x4e0), INTC_VECT(SCI_RXI, 0x500),
+       INTC_VECT(SCI_TXI, 0x520), INTC_VECT(SCI_TEI, 0x540),
+       INTC_VECT(WDT, 0x560),
+       INTC_VECT(REF_RCMI, 0x580),
+       INTC_VECT(REF_ROVI, 0x5a0),
+#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7707) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7709)
+       INTC_VECT(IRQ4, 0x680), INTC_VECT(IRQ5, 0x6a0),
+       INTC_VECT(DMAC_DEI0, 0x800), INTC_VECT(DMAC_DEI1, 0x820),
+       INTC_VECT(DMAC_DEI2, 0x840), INTC_VECT(DMAC_DEI3, 0x860),
+       INTC_VECT(ADC_ADI, 0x980),
+       INTC_VECT(SCIF2_ERI, 0x900), INTC_VECT(SCIF2_RXI, 0x920),
+       INTC_VECT(SCIF2_BRI, 0x940), INTC_VECT(SCIF2_TXI, 0x960),
+#endif
+#if defined(CONFIG_CPU_SUBTYPE_SH7707) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7709)
+       INTC_VECT(PINT07, 0x700), INTC_VECT(PINT815, 0x720),
+       INTC_VECT(SCIF0_ERI, 0x880), INTC_VECT(SCIF0_RXI, 0x8a0),
+       INTC_VECT(SCIF0_BRI, 0x8c0), INTC_VECT(SCIF0_TXI, 0x8e0),
+#endif
+};
+
+static struct intc_group groups[] = {
+       INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
+       INTC_GROUP(TMU2, TMU2_TUNI, TMU2_TICPI),
+       INTC_GROUP(REF, REF_RCMI, REF_ROVI),
+       INTC_GROUP(DMAC, DMAC_DEI0, DMAC_DEI1, DMAC_DEI2, DMAC_DEI3),
+       INTC_GROUP(SCI, SCI_ERI, SCI_RXI, SCI_TXI, SCI_TEI),
+       INTC_GROUP(SCIF0, SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI),
+       INTC_GROUP(SCIF2, SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI),
+};
+
+static struct intc_prio priorities[] = {
+       INTC_PRIO(DMAC, 7),
+       INTC_PRIO(SCI, 3),
+       INTC_PRIO(SCIF2, 3),
+       INTC_PRIO(SCIF0, 3),
+};
+
+static struct intc_prio_reg prio_registers[] = {
+       { 0xfffffee2, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
+       { 0xfffffee4, 16, 4, /* IPRB */ { WDT, REF, SCI, 0 } },
+#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7707) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7709)
+       { 0xa4000016, 16, 4, /* IPRC */ { IRQ3, IRQ2, IRQ1, IRQ0 } },
+       { 0xa4000018, 16, 4, /* IPRD */ { 0, 0, IRQ4, IRQ5 } },
+       { 0xa400001a, 16, 4, /* IPRE */ { DMAC, 0, SCIF2, ADC_ADI } },
+#endif
+#if defined(CONFIG_CPU_SUBTYPE_SH7707) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7709)
+       { 0xa4000018, 16, 4, /* IPRD */ { PINT07, PINT815, } },
+       { 0xa400001a, 16, 4, /* IPRE */ { 0, SCIF0 } },
+#endif
+};
+
+static DECLARE_INTC_DESC(intc_desc, "sh770x", vectors, groups,
+                        priorities, NULL, prio_registers, NULL);
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7707) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7709)
+static struct intc_vect vectors_irq[] = {
+       INTC_VECT(IRQ0, 0x600), INTC_VECT(IRQ1, 0x620),
+       INTC_VECT(IRQ2, 0x640), INTC_VECT(IRQ3, 0x660),
+};
+
+static DECLARE_INTC_DESC(intc_desc_irq, "sh770x-irq", vectors_irq, NULL,
+                        priorities, NULL, prio_registers, NULL);
+#endif
+
+static struct resource rtc_resources[] = {
+       [0] =   {
+               .start  = 0xfffffec0,
+               .end    = 0xfffffec0 + 0x1e,
+               .flags  = IORESOURCE_IO,
+       },
+       [1] =   {
+               .start  = 20,
+               .flags  = IORESOURCE_IRQ,
+       },
+       [2] =   {
+               .start  = 21,
+               .flags  = IORESOURCE_IRQ,
+       },
+       [3] =   {
+               .start  = 22,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device rtc_device = {
+       .name           = "sh-rtc",
+       .id             = -1,
+       .num_resources  = ARRAY_SIZE(rtc_resources),
+       .resource       = rtc_resources,
+};
+
+static struct plat_sci_port sci_platform_data[] = {
+       {
+               .mapbase        = 0xfffffe80,
+               .flags          = UPF_BOOT_AUTOCONF,
+               .type           = PORT_SCI,
+               .irqs           = { 23, 24, 25, 0 },
+       },
+#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7707) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7709)
+       {
+               .mapbase        = 0xa4000150,
+               .flags          = UPF_BOOT_AUTOCONF,
+               .type           = PORT_SCIF,
+               .irqs           = { 56, 57, 59, 58 },
+       },
+#endif
+#if defined(CONFIG_CPU_SUBTYPE_SH7707) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7709)
+       {
+               .mapbase        = 0xa4000140,
+               .flags          = UPF_BOOT_AUTOCONF,
+               .type           = PORT_IRDA,
+               .irqs           = { 52, 53, 55, 54 },
+       },
+#endif
+       {
+               .flags = 0,
+       }
+};
+
+static struct platform_device sci_device = {
+       .name           = "sh-sci",
+       .id             = -1,
+       .dev            = {
+               .platform_data  = sci_platform_data,
+       },
+};
+
+static struct platform_device *sh770x_devices[] __initdata = {
+       &sci_device,
+       &rtc_device,
+};
+
+static int __init sh770x_devices_setup(void)
+{
+       return platform_add_devices(sh770x_devices,
+               ARRAY_SIZE(sh770x_devices));
+}
+__initcall(sh770x_devices_setup);
+
+void __init plat_irq_setup_pins(int mode)
+{
+       if (mode == IRQ_MODE_IRQ) {
+#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7707) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7709)
+               register_intc_controller(&intc_desc_irq);
+               return;
+#endif
+       }
+       BUG();
+}
+
+void __init plat_irq_setup(void)
+{
+       register_intc_controller(&intc_desc);
+}

diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index a50636eb4ea8c97ebd8f963c96b0c92601bfb74f..093d491424fde52297b86e730b884a38916bb4c7 100644 (file)
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -71,19 +71,21 @@ config CPU_SUBTYPE_SH7705
 config CPU_SUBTYPE_SH7706
        bool "Support SH7706 processor"
        select CPU_SH3
-       select CPU_HAS_IPR_IRQ
+       select CPU_HAS_INTC_IRQ
        help
          Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
 
 config CPU_SUBTYPE_SH7707
        bool "Support SH7707 processor"
        select CPU_SH3
+       select CPU_HAS_INTC_IRQ
        help
          Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
 
 config CPU_SUBTYPE_SH7708
        bool "Support SH7708 processor"
        select CPU_SH3
+       select CPU_HAS_INTC_IRQ
        help
          Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
          if you have a 100 Mhz SH-3 HD6417708R CPU.
@@ -91,7 +93,7 @@ config CPU_SUBTYPE_SH7708
 config CPU_SUBTYPE_SH7709
        bool "Support SH7709 processor"
        select CPU_SH3
-       select CPU_HAS_IPR_IRQ
+       select CPU_HAS_INTC_IRQ
        help
          Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.