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-rw-r--r--arch/sh/kernel/cpu/irq/imask.c68
-rw-r--r--arch/sh/kernel/cpu/irq/intc-sh5.c10
-rw-r--r--arch/sh/kernel/cpu/irq/ipr.c12
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7770.c246
4 files changed, 277 insertions, 59 deletions
diff --git a/arch/sh/kernel/cpu/irq/imask.c b/arch/sh/kernel/cpu/irq/imask.c
index f43753b54e1d..6b5d191eec3a 100644
--- a/arch/sh/kernel/cpu/irq/imask.c
+++ b/arch/sh/kernel/cpu/irq/imask.c
@@ -18,38 +18,17 @@
#include <linux/spinlock.h>
#include <linux/cache.h>
#include <linux/irq.h>
+#include <linux/bitmap.h>
#include <asm/system.h>
#include <asm/irq.h>
/* Bitmap of IRQ masked */
-static unsigned long imask_mask = 0x7fff;
-static int interrupt_priority = 0;
-
-static void enable_imask_irq(unsigned int irq);
-static void disable_imask_irq(unsigned int irq);
-static void shutdown_imask_irq(unsigned int irq);
-static void mask_and_ack_imask(unsigned int);
-static void end_imask_irq(unsigned int irq);
-
#define IMASK_PRIORITY 15
-static unsigned int startup_imask_irq(unsigned int irq)
-{
- /* Nothing to do */
- return 0; /* never anything pending */
-}
+static DECLARE_BITMAP(imask_mask, IMASK_PRIORITY);
+static int interrupt_priority;
-static struct irq_chip imask_irq_type = {
- .typename = "SR.IMASK",
- .startup = startup_imask_irq,
- .shutdown = shutdown_imask_irq,
- .enable = enable_imask_irq,
- .disable = disable_imask_irq,
- .ack = mask_and_ack_imask,
- .end = end_imask_irq
-};
-
-void static inline set_interrupt_registers(int ip)
+static inline void set_interrupt_registers(int ip)
{
unsigned long __dummy;
@@ -72,42 +51,31 @@ void static inline set_interrupt_registers(int ip)
: "t");
}
-static void disable_imask_irq(unsigned int irq)
+static void mask_imask_irq(unsigned int irq)
{
- clear_bit(irq, &imask_mask);
+ clear_bit(irq, imask_mask);
if (interrupt_priority < IMASK_PRIORITY - irq)
interrupt_priority = IMASK_PRIORITY - irq;
-
set_interrupt_registers(interrupt_priority);
}
-static void enable_imask_irq(unsigned int irq)
+static void unmask_imask_irq(unsigned int irq)
{
- set_bit(irq, &imask_mask);
- interrupt_priority = IMASK_PRIORITY - ffz(imask_mask);
-
+ set_bit(irq, imask_mask);
+ interrupt_priority = IMASK_PRIORITY -
+ find_first_zero_bit(imask_mask, IMASK_PRIORITY);
set_interrupt_registers(interrupt_priority);
}
-static void mask_and_ack_imask(unsigned int irq)
-{
- disable_imask_irq(irq);
-}
-
-static void end_imask_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_imask_irq(irq);
-}
-
-static void shutdown_imask_irq(unsigned int irq)
-{
- /* Nothing to do */
-}
+static struct irq_chip imask_irq_chip = {
+ .typename = "SR.IMASK",
+ .mask = mask_imask_irq,
+ .unmask = unmask_imask_irq,
+ .mask_ack = mask_imask_irq,
+};
void make_imask_irq(unsigned int irq)
{
- disable_irq_nosync(irq);
- irq_desc[irq].chip = &imask_irq_type;
- enable_irq(irq);
+ set_irq_chip_and_handler_name(irq, &imask_irq_chip,
+ handle_level_irq, "level");
}
diff --git a/arch/sh/kernel/cpu/irq/intc-sh5.c b/arch/sh/kernel/cpu/irq/intc-sh5.c
index a619eaf6e6b4..6c092f1f5557 100644
--- a/arch/sh/kernel/cpu/irq/intc-sh5.c
+++ b/arch/sh/kernel/cpu/irq/intc-sh5.c
@@ -152,14 +152,6 @@ static void end_intc_irq(unsigned int irq)
enable_intc_irq(irq);
}
-/* For future use, if we ever support IRLM=0) */
-void make_intc_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- irq_desc[irq].chip = &intc_irq_type;
- disable_intc_irq(irq);
-}
-
void __init plat_irq_setup(void)
{
unsigned long long __dummy0, __dummy1=~0x00000000100000f0;
@@ -174,7 +166,7 @@ void __init plat_irq_setup(void)
/* Set default: per-line enable/disable, priority driven ack/eoi */
for (i = 0; i < NR_INTC_IRQS; i++)
- irq_desc[i].chip = &intc_irq_type;
+ set_irq_chip_and_handler(i, &intc_irq_type, handle_level_irq);
/* Disable all interrupts and set all priorities to 0 to avoid trouble */
diff --git a/arch/sh/kernel/cpu/irq/ipr.c b/arch/sh/kernel/cpu/irq/ipr.c
index 3eb17ee5540e..6ad40dbad881 100644
--- a/arch/sh/kernel/cpu/irq/ipr.c
+++ b/arch/sh/kernel/cpu/irq/ipr.c
@@ -59,10 +59,22 @@ void register_ipr_controller(struct ipr_desc *desc)
for (i = 0; i < desc->nr_irqs; i++) {
struct ipr_data *p = desc->ipr_data + i;
+#ifdef CONFIG_SPARSE_IRQ
+ struct irq_desc *irq_desc;
+#endif
BUG_ON(p->ipr_idx >= desc->nr_offsets);
BUG_ON(!desc->ipr_offsets[p->ipr_idx]);
+#ifdef CONFIG_SPARSE_IRQ
+ irq_desc = irq_to_desc_alloc_cpu(p->irq, smp_processor_id());
+ if (unlikely(!irq_desc)) {
+ printk(KERN_INFO "can not get irq_desc for %d\n",
+ p->irq);
+ continue;
+ }
+#endif
+
disable_irq_nosync(p->irq);
set_irq_chip_and_handler_name(p->irq, &desc->chip,
handle_level_irq, "level");
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
index 12fb8752d4ff..1e86209db284 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
@@ -12,6 +12,7 @@
#include <linux/serial.h>
#include <linux/serial_sci.h>
#include <linux/sh_timer.h>
+#include <linux/io.h>
static struct plat_sci_port sci_platform_data[] = {
{
@@ -387,6 +388,251 @@ void __init plat_early_device_setup(void)
ARRAY_SIZE(sh7770_early_devices));
}
+enum {
+ UNUSED = 0,
+
+ /* interrupt sources */
+ IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
+ IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
+ IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
+ IRL_HHLL, IRL_HHLH, IRL_HHHL,
+
+ IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5,
+
+ GPIO,
+ TMU0, TMU1, TMU2, TMU2_TICPI,
+ TMU3, TMU4, TMU5, TMU5_TICPI,
+ TMU6, TMU7, TMU8,
+ HAC, IPI, SPDIF, HUDI, I2C,
+ DMAC0_DMINT0, DMAC0_DMINT1, DMAC0_DMINT2,
+ I2S0, I2S1, I2S2, I2S3,
+ SRC_RX, SRC_TX, SRC_SPDIF,
+ DU, VIDEO_IN, REMOTE, YUV, USB, ATAPI, CAN, GPS, GFX2D,
+ GFX3D_MBX, GFX3D_DMAC,
+ EXBUS_ATA,
+ SPI0, SPI1,
+ SCIF089, SCIF1234, SCIF567,
+ ADC,
+ BBDMAC_0_3, BBDMAC_4_7, BBDMAC_8_10, BBDMAC_11_14,
+ BBDMAC_15_18, BBDMAC_19_22, BBDMAC_23_26, BBDMAC_27,
+ BBDMAC_28, BBDMAC_29, BBDMAC_30, BBDMAC_31,
+
+ /* interrupt groups */
+ TMU, DMAC, I2S, SRC, GFX3D, SPI, SCIF, BBDMAC,
+};
+
+static struct intc_vect vectors[] __initdata = {
+ INTC_VECT(GPIO, 0x3e0),
+ INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
+ INTC_VECT(TMU2, 0x440), INTC_VECT(TMU2_TICPI, 0x460),
+ INTC_VECT(TMU3, 0x480), INTC_VECT(TMU4, 0x4a0),
+ INTC_VECT(TMU5, 0x4c0), INTC_VECT(TMU5_TICPI, 0x4e0),
+ INTC_VECT(TMU6, 0x500), INTC_VECT(TMU7, 0x520),
+ INTC_VECT(TMU8, 0x540),
+ INTC_VECT(HAC, 0x580), INTC_VECT(IPI, 0x5c0),
+ INTC_VECT(SPDIF, 0x5e0),
+ INTC_VECT(HUDI, 0x600), INTC_VECT(I2C, 0x620),
+ INTC_VECT(DMAC0_DMINT0, 0x640), INTC_VECT(DMAC0_DMINT1, 0x660),
+ INTC_VECT(DMAC0_DMINT2, 0x680),
+ INTC_VECT(I2S0, 0x6a0), INTC_VECT(I2S1, 0x6c0),
+ INTC_VECT(I2S2, 0x6e0), INTC_VECT(I2S3, 0x700),
+ INTC_VECT(SRC_RX, 0x720), INTC_VECT(SRC_TX, 0x740),
+ INTC_VECT(SRC_SPDIF, 0x760),
+ INTC_VECT(DU, 0x780), INTC_VECT(VIDEO_IN, 0x7a0),
+ INTC_VECT(REMOTE, 0x7c0), INTC_VECT(YUV, 0x7e0),
+ INTC_VECT(USB, 0x840), INTC_VECT(ATAPI, 0x860),
+ INTC_VECT(CAN, 0x880), INTC_VECT(GPS, 0x8a0),
+ INTC_VECT(GFX2D, 0x8c0),
+ INTC_VECT(GFX3D_MBX, 0x900), INTC_VECT(GFX3D_DMAC, 0x920),
+ INTC_VECT(EXBUS_ATA, 0x940),
+ INTC_VECT(SPI0, 0x960), INTC_VECT(SPI1, 0x980),
+ INTC_VECT(SCIF089, 0x9a0), INTC_VECT(SCIF1234, 0x9c0),
+ INTC_VECT(SCIF1234, 0x9e0), INTC_VECT(SCIF1234, 0xa00),
+ INTC_VECT(SCIF1234, 0xa20), INTC_VECT(SCIF567, 0xa40),
+ INTC_VECT(SCIF567, 0xa60), INTC_VECT(SCIF567, 0xa80),
+ INTC_VECT(SCIF089, 0xaa0), INTC_VECT(SCIF089, 0xac0),
+ INTC_VECT(ADC, 0xb20),
+ INTC_VECT(BBDMAC_0_3, 0xba0), INTC_VECT(BBDMAC_0_3, 0xbc0),
+ INTC_VECT(BBDMAC_0_3, 0xbe0), INTC_VECT(BBDMAC_0_3, 0xc00),
+ INTC_VECT(BBDMAC_4_7, 0xc20), INTC_VECT(BBDMAC_4_7, 0xc40),
+ INTC_VECT(BBDMAC_4_7, 0xc60), INTC_VECT(BBDMAC_4_7, 0xc80),
+ INTC_VECT(BBDMAC_8_10, 0xca0), INTC_VECT(BBDMAC_8_10, 0xcc0),
+ INTC_VECT(BBDMAC_8_10, 0xce0), INTC_VECT(BBDMAC_11_14, 0xd00),
+ INTC_VECT(BBDMAC_11_14, 0xd20), INTC_VECT(BBDMAC_11_14, 0xd40),
+ INTC_VECT(BBDMAC_11_14, 0xd60), INTC_VECT(BBDMAC_15_18, 0xd80),
+ INTC_VECT(BBDMAC_15_18, 0xda0), INTC_VECT(BBDMAC_15_18, 0xdc0),
+ INTC_VECT(BBDMAC_15_18, 0xde0), INTC_VECT(BBDMAC_19_22, 0xe00),
+ INTC_VECT(BBDMAC_19_22, 0xe20), INTC_VECT(BBDMAC_19_22, 0xe40),
+ INTC_VECT(BBDMAC_19_22, 0xe60), INTC_VECT(BBDMAC_23_26, 0xe80),
+ INTC_VECT(BBDMAC_23_26, 0xea0), INTC_VECT(BBDMAC_23_26, 0xec0),
+ INTC_VECT(BBDMAC_23_26, 0xee0), INTC_VECT(BBDMAC_27, 0xf00),
+ INTC_VECT(BBDMAC_28, 0xf20), INTC_VECT(BBDMAC_29, 0xf40),
+ INTC_VECT(BBDMAC_30, 0xf60), INTC_VECT(BBDMAC_31, 0xf80),
+};
+
+static struct intc_group groups[] __initdata = {
+ INTC_GROUP(TMU, TMU0, TMU1, TMU2, TMU2_TICPI, TMU3, TMU4, TMU5,
+ TMU5_TICPI, TMU6, TMU7, TMU8),
+ INTC_GROUP(DMAC, DMAC0_DMINT0, DMAC0_DMINT1, DMAC0_DMINT2),
+ INTC_GROUP(I2S, I2S0, I2S1, I2S2, I2S3),
+ INTC_GROUP(SRC, SRC_RX, SRC_TX, SRC_SPDIF),
+ INTC_GROUP(GFX3D, GFX3D_MBX, GFX3D_DMAC),
+ INTC_GROUP(SPI, SPI0, SPI1),
+ INTC_GROUP(SCIF, SCIF089, SCIF1234, SCIF567),
+ INTC_GROUP(BBDMAC,
+ BBDMAC_0_3, BBDMAC_4_7, BBDMAC_8_10, BBDMAC_11_14,
+ BBDMAC_15_18, BBDMAC_19_22, BBDMAC_23_26, BBDMAC_27,
+ BBDMAC_28, BBDMAC_29, BBDMAC_30, BBDMAC_31),
+};
+
+static struct intc_mask_reg mask_registers[] __initdata = {
+ { 0xffe00040, 0xffe00044, 32, /* INT2MSKR / INT2MSKCR */
+ { 0, BBDMAC, ADC, SCIF, SPI, EXBUS_ATA, GFX3D, GFX2D,
+ GPS, CAN, ATAPI, USB, YUV, REMOTE, VIDEO_IN, DU, SRC, I2S,
+ DMAC, I2C, HUDI, SPDIF, IPI, HAC, TMU, GPIO } },
+};
+
+static struct intc_prio_reg prio_registers[] __initdata = {
+ { 0xffe00000, 0, 32, 8, /* INT2PRI0 */ { GPIO, TMU0, 0, HAC } },
+ { 0xffe00004, 0, 32, 8, /* INT2PRI1 */ { IPI, SPDIF, HUDI, I2C } },
+ { 0xffe00008, 0, 32, 8, /* INT2PRI2 */ { DMAC, I2S, SRC, DU } },
+ { 0xffe0000c, 0, 32, 8, /* INT2PRI3 */ { VIDEO_IN, REMOTE, YUV, USB } },
+ { 0xffe00010, 0, 32, 8, /* INT2PRI4 */ { ATAPI, CAN, GPS, GFX2D } },
+ { 0xffe00014, 0, 32, 8, /* INT2PRI5 */ { 0, GFX3D, EXBUS_ATA, SPI } },
+ { 0xffe00018, 0, 32, 8, /* INT2PRI6 */ { SCIF1234, SCIF567, SCIF089 } },
+ { 0xffe0001c, 0, 32, 8, /* INT2PRI7 */ { ADC, 0, 0, BBDMAC_0_3 } },
+ { 0xffe00020, 0, 32, 8, /* INT2PRI8 */
+ { BBDMAC_4_7, BBDMAC_8_10, BBDMAC_11_14, BBDMAC_15_18 } },
+ { 0xffe00024, 0, 32, 8, /* INT2PRI9 */
+ { BBDMAC_19_22, BBDMAC_23_26, BBDMAC_27, BBDMAC_28 } },
+ { 0xffe00028, 0, 32, 8, /* INT2PRI10 */
+ { BBDMAC_29, BBDMAC_30, BBDMAC_31 } },
+ { 0xffe0002c, 0, 32, 8, /* INT2PRI11 */
+ { TMU1, TMU2, TMU2_TICPI, TMU3 } },
+ { 0xffe00030, 0, 32, 8, /* INT2PRI12 */
+ { TMU4, TMU5, TMU5_TICPI, TMU6 } },
+ { 0xffe00034, 0, 32, 8, /* INT2PRI13 */
+ { TMU7, TMU8 } },
+};
+
+static DECLARE_INTC_DESC(intc_desc, "sh7770", vectors, groups,
+ mask_registers, prio_registers, NULL);
+
+/* Support for external interrupt pins in IRQ mode */
+static struct intc_vect irq_vectors[] __initdata = {
+ INTC_VECT(IRQ0, 0x240), INTC_VECT(IRQ1, 0x280),
+ INTC_VECT(IRQ2, 0x2c0), INTC_VECT(IRQ3, 0x300),
+ INTC_VECT(IRQ4, 0x340), INTC_VECT(IRQ5, 0x380),
+};
+
+static struct intc_mask_reg irq_mask_registers[] __initdata = {
+ { 0xffd00044, 0xffd00064, 32, /* INTMSK0 / INTMSKCLR0 */
+ { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, } },
+};
+
+static struct intc_prio_reg irq_prio_registers[] __initdata = {
+ { 0xffd00010, 0, 32, 4, /* INTPRI */ { IRQ0, IRQ1, IRQ2, IRQ3,
+ IRQ4, IRQ5, } },
+};
+
+static struct intc_sense_reg irq_sense_registers[] __initdata = {
+ { 0xffd0001c, 32, 2, /* ICR1 */ { IRQ0, IRQ1, IRQ2, IRQ3,
+ IRQ4, IRQ5, } },
+};
+
+static DECLARE_INTC_DESC(intc_irq_desc, "sh7770-irq", irq_vectors,
+ NULL, irq_mask_registers, irq_prio_registers,
+ irq_sense_registers);
+
+/* External interrupt pins in IRL mode */
+static struct intc_vect irl_vectors[] __initdata = {
+ INTC_VECT(IRL_LLLL, 0x200), INTC_VECT(IRL_LLLH, 0x220),
+ INTC_VECT(IRL_LLHL, 0x240), INTC_VECT(IRL_LLHH, 0x260),
+ INTC_VECT(IRL_LHLL, 0x280), INTC_VECT(IRL_LHLH, 0x2a0),
+ INTC_VECT(IRL_LHHL, 0x2c0), INTC_VECT(IRL_LHHH, 0x2e0),
+ INTC_VECT(IRL_HLLL, 0x300), INTC_VECT(IRL_HLLH, 0x320),
+ INTC_VECT(IRL_HLHL, 0x340), INTC_VECT(IRL_HLHH, 0x360),
+ INTC_VECT(IRL_HHLL, 0x380), INTC_VECT(IRL_HHLH, 0x3a0),
+ INTC_VECT(IRL_HHHL, 0x3c0),
+};
+
+static struct intc_mask_reg irl3210_mask_registers[] __initdata = {
+ { 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
+ { IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
+ IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
+ IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
+ IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
+};
+
+static struct intc_mask_reg irl7654_mask_registers[] __initdata = {
+ { 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
+ IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
+ IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
+ IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
+};
+
+static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7780-irl7654", irl_vectors,
+ NULL, irl7654_mask_registers, NULL, NULL);
+
+static DECLARE_INTC_DESC(intc_irl3210_desc, "sh7780-irl3210", irl_vectors,
+ NULL, irl3210_mask_registers, NULL, NULL);
+
+#define INTC_ICR0 0xffd00000
+#define INTC_INTMSK0 0xffd00044
+#define INTC_INTMSK1 0xffd00048
+#define INTC_INTMSK2 0xffd40080
+#define INTC_INTMSKCLR1 0xffd00068
+#define INTC_INTMSKCLR2 0xffd40084
+
void __init plat_irq_setup(void)
{
+ /* disable IRQ7-0 */
+ ctrl_outl(0xff000000, INTC_INTMSK0);
+
+ /* disable IRL3-0 + IRL7-4 */
+ ctrl_outl(0xc0000000, INTC_INTMSK1);
+ ctrl_outl(0xfffefffe, INTC_INTMSK2);
+
+ /* select IRL mode for IRL3-0 + IRL7-4 */
+ ctrl_outl(ctrl_inl(INTC_ICR0) & ~0x00c00000, INTC_ICR0);
+
+ /* disable holding function, ie enable "SH-4 Mode" */
+ ctrl_outl(ctrl_inl(INTC_ICR0) | 0x00200000, INTC_ICR0);
+
+ register_intc_controller(&intc_desc);
+}
+
+void __init plat_irq_setup_pins(int mode)
+{
+ switch (mode) {
+ case IRQ_MODE_IRQ:
+ /* select IRQ mode for IRL3-0 + IRL7-4 */
+ ctrl_outl(ctrl_inl(INTC_ICR0) | 0x00c00000, INTC_ICR0);
+ register_intc_controller(&intc_irq_desc);
+ break;
+ case IRQ_MODE_IRL7654:
+ /* enable IRL7-4 but don't provide any masking */
+ ctrl_outl(0x40000000, INTC_INTMSKCLR1);
+ ctrl_outl(0x0000fffe, INTC_INTMSKCLR2);
+ break;
+ case IRQ_MODE_IRL3210:
+ /* enable IRL0-3 but don't provide any masking */
+ ctrl_outl(0x80000000, INTC_INTMSKCLR1);
+ ctrl_outl(0xfffe0000, INTC_INTMSKCLR2);
+ break;
+ case IRQ_MODE_IRL7654_MASK:
+ /* enable IRL7-4 and mask using cpu intc controller */
+ ctrl_outl(0x40000000, INTC_INTMSKCLR1);
+ register_intc_controller(&intc_irl7654_desc);
+ break;
+ case IRQ_MODE_IRL3210_MASK:
+ /* enable IRL0-3 and mask using cpu intc controller */
+ ctrl_outl(0x80000000, INTC_INTMSKCLR1);
+ register_intc_controller(&intc_irl3210_desc);
+ break;
+ default:
+ BUG();
+ }
}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-11-06 10:32:29 +0100