ARM: shmobile: r8a7740: Migrate from INTC to GIC
With the added capabilty of the intc_irqpin driver to handle shared
external IRQs, all prerequisites are fulfilled and we are ready to
migrate completely to GIC. This includes the following steps:
- Kconfig: select ARM_GIC and RENESAS_INTC_IRQPIN
- intc-r8a7740: Throw out all legacy INTC code and init the GIC. We need
to mask out all shared IRQs as it is needed by the
shared intc_irqpin driver.
- setup-r8a7740: Add 4 irqpin devices to handle external IRQs and update
all IRQ numbers to point to the GIC SPI.
- board-armadillo: Update all IRQ numbers to point to the GIC SPI.
- pfc-r8a7740: Update all IRQ numbers of the GPIOs to point to the GIC
SPI.
Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c
index 8b85d4d..228d7ab 100644
--- a/arch/arm/mach-shmobile/setup-r8a7740.c
+++ b/arch/arm/mach-shmobile/setup-r8a7740.c
@@ -22,6 +22,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/platform_data/irq-renesas-intc-irqpin.h>
#include <linux/platform_device.h>
#include <linux/of_platform.h>
#include <linux/serial_sci.h>
@@ -94,6 +95,126 @@
platform_device_register(&r8a7740_pfc_device);
}
+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(149)), /* IRQ0 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ1 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ2 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ3 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ4 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ5 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ6 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* 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 */
+};
+
+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(149)), /* IRQ8 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ9 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ10 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ11 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ12 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ13 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ14 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* 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), /* INTPRI30A */
+ DEFINE_RES_MEM(0xe6900028, 1), /* INTREQ30A */
+ DEFINE_RES_MEM(0xe6900048, 1), /* INTMSK30A */
+ DEFINE_RES_MEM(0xe6900068, 1), /* INTMSKCLR30A */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ16 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ17 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ18 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ19 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ20 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ21 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ22 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* 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), /* ICR3A */
+ 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(149)), /* IRQ24 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ25 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ26 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ27 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ28 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ29 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* IRQ30 */
+ DEFINE_RES_IRQ(gic_spi(149)), /* 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,
+ },
+};
+
/* SCIFA0 */
static struct plat_sci_port scif0_platform_data = {
.mapbase = 0xe6c40000,
@@ -101,7 +222,7 @@
.scscr = SCSCR_RE | SCSCR_TE,
.scbrr_algo_id = SCBRR_ALGO_4,
.type = PORT_SCIFA,
- .irqs = SCIx_IRQ_MUXED(evt2irq(0x0c00)),
+ .irqs = SCIx_IRQ_MUXED(gic_spi(100)),
};
static struct platform_device scif0_device = {
@@ -119,7 +240,7 @@
.scscr = SCSCR_RE | SCSCR_TE,
.scbrr_algo_id = SCBRR_ALGO_4,
.type = PORT_SCIFA,
- .irqs = SCIx_IRQ_MUXED(evt2irq(0x0c20)),
+ .irqs = SCIx_IRQ_MUXED(gic_spi(101)),
};
static struct platform_device scif1_device = {
@@ -137,7 +258,7 @@
.scscr = SCSCR_RE | SCSCR_TE,
.scbrr_algo_id = SCBRR_ALGO_4,
.type = PORT_SCIFA,
- .irqs = SCIx_IRQ_MUXED(evt2irq(0x0c40)),
+ .irqs = SCIx_IRQ_MUXED(gic_spi(102)),
};
static struct platform_device scif2_device = {
@@ -155,7 +276,7 @@
.scscr = SCSCR_RE | SCSCR_TE,
.scbrr_algo_id = SCBRR_ALGO_4,
.type = PORT_SCIFA,
- .irqs = SCIx_IRQ_MUXED(evt2irq(0x0c60)),
+ .irqs = SCIx_IRQ_MUXED(gic_spi(103)),
};
static struct platform_device scif3_device = {
@@ -173,7 +294,7 @@
.scscr = SCSCR_RE | SCSCR_TE,
.scbrr_algo_id = SCBRR_ALGO_4,
.type = PORT_SCIFA,
- .irqs = SCIx_IRQ_MUXED(evt2irq(0x0d20)),
+ .irqs = SCIx_IRQ_MUXED(gic_spi(104)),
};
static struct platform_device scif4_device = {
@@ -191,7 +312,7 @@
.scscr = SCSCR_RE | SCSCR_TE,
.scbrr_algo_id = SCBRR_ALGO_4,
.type = PORT_SCIFA,
- .irqs = SCIx_IRQ_MUXED(evt2irq(0x0d40)),
+ .irqs = SCIx_IRQ_MUXED(gic_spi(105)),
};
static struct platform_device scif5_device = {
@@ -209,7 +330,7 @@
.scscr = SCSCR_RE | SCSCR_TE,
.scbrr_algo_id = SCBRR_ALGO_4,
.type = PORT_SCIFA,
- .irqs = SCIx_IRQ_MUXED(evt2irq(0x04c0)),
+ .irqs = SCIx_IRQ_MUXED(gic_spi(106)),
};
static struct platform_device scif6_device = {
@@ -227,7 +348,7 @@
.scscr = SCSCR_RE | SCSCR_TE,
.scbrr_algo_id = SCBRR_ALGO_4,
.type = PORT_SCIFA,
- .irqs = SCIx_IRQ_MUXED(evt2irq(0x04e0)),
+ .irqs = SCIx_IRQ_MUXED(gic_spi(107)),
};
static struct platform_device scif7_device = {
@@ -245,7 +366,7 @@
.scscr = SCSCR_RE | SCSCR_TE,
.scbrr_algo_id = SCBRR_ALGO_4,
.type = PORT_SCIFB,
- .irqs = SCIx_IRQ_MUXED(evt2irq(0x0d60)),
+ .irqs = SCIx_IRQ_MUXED(gic_spi(108)),
};
static struct platform_device scifb_device = {
@@ -273,7 +394,7 @@
.flags = IORESOURCE_MEM,
},
[1] = {
- .start = evt2irq(0x0b00),
+ .start = gic_spi(58),
.flags = IORESOURCE_IRQ,
},
};
@@ -304,7 +425,7 @@
.flags = IORESOURCE_MEM,
},
[1] = {
- .start = intcs_evt2irq(0xe80),
+ .start = gic_spi(198),
.flags = IORESOURCE_IRQ,
},
};
@@ -334,7 +455,7 @@
.flags = IORESOURCE_MEM,
},
[1] = {
- .start = intcs_evt2irq(0xea0),
+ .start = gic_spi(199),
.flags = IORESOURCE_IRQ,
},
};
@@ -364,7 +485,7 @@
.flags = IORESOURCE_MEM,
},
[1] = {
- .start = intcs_evt2irq(0xec0),
+ .start = gic_spi(200),
.flags = IORESOURCE_IRQ,
},
};
@@ -411,6 +532,10 @@
};
static struct platform_device *r8a7740_early_devices[] __initdata = {
+ &irqpin0_device,
+ &irqpin1_device,
+ &irqpin2_device,
+ &irqpin3_device,
&scif0_device,
&scif1_device,
&scif2_device,
@@ -525,14 +650,14 @@
},
{
.name = "error_irq",
- .start = evt2irq(0x20c0),
- .end = evt2irq(0x20c0),
+ .start = gic_spi(34),
+ .end = gic_spi(34),
.flags = IORESOURCE_IRQ,
},
{
/* IRQ for channels 0-5 */
- .start = evt2irq(0x2000),
- .end = evt2irq(0x20a0),
+ .start = gic_spi(28),
+ .end = gic_spi(33),
.flags = IORESOURCE_IRQ,
},
};
@@ -553,14 +678,14 @@
},
{
.name = "error_irq",
- .start = evt2irq(0x21c0),
- .end = evt2irq(0x21c0),
+ .start = gic_spi(41),
+ .end = gic_spi(41),
.flags = IORESOURCE_IRQ,
},
{
/* IRQ for channels 0-5 */
- .start = evt2irq(0x2100),
- .end = evt2irq(0x21a0),
+ .start = gic_spi(35),
+ .end = gic_spi(40),
.flags = IORESOURCE_IRQ,
},
};
@@ -581,14 +706,14 @@
},
{
.name = "error_irq",
- .start = evt2irq(0x22c0),
- .end = evt2irq(0x22c0),
+ .start = gic_spi(48),
+ .end = gic_spi(48),
.flags = IORESOURCE_IRQ,
},
{
/* IRQ for channels 0-5 */
- .start = evt2irq(0x2200),
- .end = evt2irq(0x22a0),
+ .start = gic_spi(42),
+ .end = gic_spi(47),
.flags = IORESOURCE_IRQ,
},
};
@@ -677,8 +802,8 @@
},
{
/* IRQ for channels */
- .start = evt2irq(0x0a00),
- .end = evt2irq(0x0a00),
+ .start = gic_spi(49),
+ .end = gic_spi(49),
.flags = IORESOURCE_IRQ,
},
};
@@ -702,8 +827,8 @@
.flags = IORESOURCE_MEM,
},
[1] = {
- .start = intcs_evt2irq(0xe00),
- .end = intcs_evt2irq(0xe60),
+ .start = gic_spi(201),
+ .end = gic_spi(204),
.flags = IORESOURCE_IRQ,
},
};
@@ -716,8 +841,8 @@
.flags = IORESOURCE_MEM,
},
[1] = {
- .start = evt2irq(0x780), /* IIC1_ALI1 */
- .end = evt2irq(0x7e0), /* IIC1_DTEI1 */
+ .start = gic_spi(70), /* IIC1_ALI1 */
+ .end = gic_spi(73), /* IIC1_DTEI1 */
.flags = IORESOURCE_IRQ,
},
};
@@ -738,8 +863,8 @@
static struct resource pmu_resources[] = {
[0] = {
- .start = evt2irq(0x19a0),
- .end = evt2irq(0x19a0),
+ .start = gic_spi(83),
+ .end = gic_spi(83),
.flags = IORESOURCE_IRQ,
},
};
@@ -904,7 +1029,6 @@
.map_io = r8a7740_map_io,
.init_early = r8a7740_add_early_devices_dt,
.init_irq = r8a7740_init_irq,
- .handle_irq = shmobile_handle_irq_intc,
.init_machine = r8a7740_add_standard_devices_dt,
.init_time = shmobile_timer_init,
.dt_compat = r8a7740_boards_compat_dt,