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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-10 03:33:57 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-10 03:33:57 +0400
commitfa91515cbf2375a64c8bd0a033a05b0859dff591 (patch)
tree78d426e740152fa7abd6500b19ca0218190a2729 /arch/arm/mach-shmobile/setup-r8a7779.c
parenta35c6322e52c550b61a04a44df27d22394ee0a2c (diff)
parent25475030ec0e2c4c05f3ecb2c068f6e42944fd04 (diff)
downloadlinux-fa91515cbf2375a64c8bd0a033a05b0859dff591.tar.xz
Merge tag 'renesas-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM Renesas SoC cleanup, refactoring and more SMP support from Kevin Hilman: "Lots of cleanup and refactoring and some SMP additions for Renesas platforms. Due to some inter-dependencies with other arm-soc branches, this Renesas stuff was separated out for sending after the other branches were merged. Highlights: - remove unused board support and cleanup of unused headers - refactoring of init and device registration - simplify IRQ initialization" * tag 'renesas-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (68 commits) ARM: shmobile: Per-CPU SMP boot / sleep code for SCU SoCs ARM: shmobile: Introduce per-CPU SMP boot / sleep code ARM: shmobile: Use shared SCU CPU Hotplug code on r8a7779 ARM: shmobile: Use shared SCU CPU Hotplug code on sh73a0 ARM: shmobile: Add shared SCU CPU Hotplug code ARM: shmobile: Use shared SCU SMP boot code on emev2 ARM: shmobile: Use shared SCU SMP boot code on r8a7779 ARM: shmobile: Use shared SCU SMP boot code on sh73a0 ARM: shmobile: Introduce shared SCU SMP boot code ARM: shmobile: sh73a0: Remove global GPIO_NR definition ARM: shmobile: kzm9d: remove nfsroot settings from bootargs ARM: shmobile: armadillo800eva: remove nfsroot settings from bootargs ARM: shmobile: r8a7779: move r8a7779_init_irq_xxx() to setup ARM: shmobile: r8a7740: move r8a7740_init_irq_of() to setup ARM: shmobile: bockw: add missing __initdata ARM: shmobile: r8a7790: add missing __initdata ARM: shmobile: r8a7779: add missing __initdata ARM: shmobile: Remove unused shmobile_init_time() ARM: shmobile: Use clocksource_of_init() on r8a7790 ARM: shmobile: Use default ->init_time() on KZM9G DT ref ...
Diffstat (limited to 'arch/arm/mach-shmobile/setup-r8a7779.c')
-rw-r--r--arch/arm/mach-shmobile/setup-r8a7779.c102
1 files changed, 81 insertions, 21 deletions
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index 41bab625341e..b5b2f787da2e 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -22,14 +22,16 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
+#include <linux/irqchip.h>
+#include <linux/irqchip/arm-gic.h>
#include <linux/of_platform.h>
#include <linux/platform_data/gpio-rcar.h>
+#include <linux/platform_data/irq-renesas-intc-irqpin.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/serial_sci.h>
-#include <linux/sh_intc.h>
#include <linux/sh_timer.h>
#include <linux/dma-mapping.h>
#include <linux/usb/otg.h>
@@ -37,7 +39,6 @@
#include <linux/usb/ehci_pdriver.h>
#include <linux/usb/ohci_pdriver.h>
#include <linux/pm_runtime.h>
-#include <mach/hardware.h>
#include <mach/irqs.h>
#include <mach/r8a7779.h>
#include <mach/common.h>
@@ -69,6 +70,60 @@ void __init r8a7779_map_io(void)
iotable_init(r8a7779_io_desc, ARRAY_SIZE(r8a7779_io_desc));
}
+/* IRQ */
+#define INT2SMSKCR0 IOMEM(0xfe7822a0)
+#define INT2SMSKCR1 IOMEM(0xfe7822a4)
+#define INT2SMSKCR2 IOMEM(0xfe7822a8)
+#define INT2SMSKCR3 IOMEM(0xfe7822ac)
+#define INT2SMSKCR4 IOMEM(0xfe7822b0)
+
+#define INT2NTSR0 IOMEM(0xfe700060)
+#define INT2NTSR1 IOMEM(0xfe700064)
+
+static struct renesas_intc_irqpin_config irqpin0_platform_data __initdata = {
+ .irq_base = irq_pin(0), /* IRQ0 -> IRQ3 */
+ .sense_bitfield_width = 2,
+};
+
+static struct resource irqpin0_resources[] __initdata = {
+ 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 */
+};
+
+void __init r8a7779_init_irq_extpin(int irlm)
+{
+ void __iomem *icr0 = ioremap_nocache(0xfe780000, PAGE_SIZE);
+ u32 tmp;
+
+ if (!icr0) {
+ pr_warn("r8a7779: unable to setup external irq pin mode\n");
+ return;
+ }
+
+ 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_resndata(
+ &platform_bus, "renesas_intc_irqpin", -1,
+ irqpin0_resources, ARRAY_SIZE(irqpin0_resources),
+ &irqpin0_platform_data, sizeof(irqpin0_platform_data));
+}
+
+/* PFC/GPIO */
static struct resource r8a7779_pfc_resources[] = {
DEFINE_RES_MEM(0xfffc0000, 0x023c),
};
@@ -388,15 +443,6 @@ static struct platform_device sata_device = {
},
};
-/* USB PHY */
-static struct resource usb_phy_resources[] __initdata = {
- [0] = {
- .start = 0xffe70800,
- .end = 0xffe70900 - 1,
- .flags = IORESOURCE_MEM,
- },
-};
-
/* USB */
static struct usb_phy *phy;
@@ -548,7 +594,7 @@ static struct platform_device ohci1_device = {
};
/* Ether */
-static struct resource ether_resources[] = {
+static struct resource ether_resources[] __initdata = {
{
.start = 0xfde00000,
.end = 0xfde003ff,
@@ -629,14 +675,6 @@ void __init r8a7779_add_ether_device(struct sh_eth_plat_data *pdata)
pdata, sizeof(*pdata));
}
-void __init r8a7779_add_usb_phy_device(struct rcar_phy_platform_data *pdata)
-{
- platform_device_register_resndata(&platform_bus, "rcar_usb_phy", -1,
- usb_phy_resources,
- ARRAY_SIZE(usb_phy_resources),
- pdata, sizeof(*pdata));
-}
-
void __init r8a7779_add_vin_device(int id, struct rcar_vin_platform_data *pdata)
{
BUG_ON(id < 0 || id > 3);
@@ -697,6 +735,29 @@ void __init r8a7779_init_late(void)
}
#ifdef CONFIG_USE_OF
+static int r8a7779_set_wake(struct irq_data *data, unsigned int on)
+{
+ return 0; /* always allow wakeup */
+}
+
+void __init r8a7779_init_irq_dt(void)
+{
+ gic_arch_extn.irq_set_wake = r8a7779_set_wake;
+
+ irqchip_init();
+
+ /* route all interrupts to ARM */
+ __raw_writel(0xffffffff, INT2NTSR0);
+ __raw_writel(0x3fffffff, INT2NTSR1);
+
+ /* unmask all known interrupts in INTCS2 */
+ __raw_writel(0xfffffff0, INT2SMSKCR0);
+ __raw_writel(0xfff7ffff, INT2SMSKCR1);
+ __raw_writel(0xfffbffdf, INT2SMSKCR2);
+ __raw_writel(0xbffffffc, INT2SMSKCR3);
+ __raw_writel(0x003fee3f, INT2SMSKCR4);
+}
+
void __init r8a7779_init_delay(void)
{
shmobile_setup_delay(1000, 2, 4); /* Cortex-A9 @ 1000MHz */
@@ -723,7 +784,6 @@ DT_MACHINE_START(R8A7779_DT, "Generic R8A7779 (Flattened Device Tree)")
.nr_irqs = NR_IRQS_LEGACY,
.init_irq = r8a7779_init_irq_dt,
.init_machine = r8a7779_add_standard_devices_dt,
- .init_time = shmobile_timer_init,
.init_late = r8a7779_init_late,
.dt_compat = r8a7779_compat_dt,
MACHINE_END