Initial import

1 files changed, 366 insertions, 0 deletions

diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
new file mode 100644
index 000000000..5f08c59b9
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -0,0 +1,366 @@
+/*
+ * SH7091/SH7750/SH7750S/SH7750R/SH7751/SH7751R Setup
+ *
+ *  Copyright (C) 2006  Paul Mundt
+ *  Copyright (C) 2006  Jamie Lenehan
+ *
+ * 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 <linux/io.h>
+#include <linux/sh_timer.h>
+#include <linux/sh_intc.h>
+#include <linux/serial_sci.h>
+#include <generated/machtypes.h>
+
+static struct resource rtc_resources[] = {
+	[0] = {
+		.start	= 0xffc80000,
+		.end	= 0xffc80000 + 0x58 - 1,
+		.flags	= IORESOURCE_IO,
+	},
+	[1] = {
+		/* Shared Period/Carry/Alarm IRQ */
+		.start	= evt2irq(0x480),
+		.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 = {
+	.port_reg	= 0xffe0001C,
+	.flags		= UPF_BOOT_AUTOCONF,
+	.scscr		= SCSCR_TE | SCSCR_RE,
+	.type		= PORT_SCI,
+	.regshift	= 2,
+};
+
+static struct resource sci_resources[] = {
+	DEFINE_RES_MEM(0xffe00000, 0x100),
+	DEFINE_RES_IRQ(evt2irq(0x4e0)),
+};
+
+static struct platform_device sci_device = {
+	.name		= "sh-sci",
+	.id		= 0,
+	.resource	= sci_resources,
+	.num_resources	= ARRAY_SIZE(sci_resources),
+	.dev		= {
+		.platform_data	= &sci_platform_data,
+	},
+};
+
+static struct plat_sci_port scif_platform_data = {
+	.flags		= UPF_BOOT_AUTOCONF,
+	.scscr		= SCSCR_TE | SCSCR_RE | SCSCR_REIE,
+	.type		= PORT_SCIF,
+};
+
+static struct resource scif_resources[] = {
+	DEFINE_RES_MEM(0xffe80000, 0x100),
+	DEFINE_RES_IRQ(evt2irq(0x700)),
+};
+
+static struct platform_device scif_device = {
+	.name		= "sh-sci",
+	.id		= 1,
+	.resource	= scif_resources,
+	.num_resources	= ARRAY_SIZE(scif_resources),
+	.dev		= {
+		.platform_data	= &scif_platform_data,
+	},
+};
+
+static struct sh_timer_config tmu0_platform_data = {
+	.channels_mask = 7,
+};
+
+static struct resource tmu0_resources[] = {
+	DEFINE_RES_MEM(0xffd80000, 0x30),
+	DEFINE_RES_IRQ(evt2irq(0x400)),
+	DEFINE_RES_IRQ(evt2irq(0x420)),
+	DEFINE_RES_IRQ(evt2irq(0x440)),
+};
+
+static struct platform_device tmu0_device = {
+	.name		= "sh-tmu",
+	.id		= 0,
+	.dev = {
+		.platform_data	= &tmu0_platform_data,
+	},
+	.resource	= tmu0_resources,
+	.num_resources	= ARRAY_SIZE(tmu0_resources),
+};
+
+/* SH7750R, SH7751 and SH7751R all have two extra timer channels */
+#if defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7751) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7751R)
+
+static struct sh_timer_config tmu1_platform_data = {
+	.channels_mask = 3,
+};
+
+static struct resource tmu1_resources[] = {
+	DEFINE_RES_MEM(0xfe100000, 0x20),
+	DEFINE_RES_IRQ(evt2irq(0xb00)),
+	DEFINE_RES_IRQ(evt2irq(0xb80)),
+};
+
+static struct platform_device tmu1_device = {
+	.name		= "sh-tmu",
+	.id		= 1,
+	.dev = {
+		.platform_data	= &tmu1_platform_data,
+	},
+	.resource	= tmu1_resources,
+	.num_resources	= ARRAY_SIZE(tmu1_resources),
+};
+
+#endif
+
+static struct platform_device *sh7750_devices[] __initdata = {
+	&rtc_device,
+	&tmu0_device,
+#if defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7751) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7751R)
+	&tmu1_device,
+#endif
+};
+
+static int __init sh7750_devices_setup(void)
+{
+	if (mach_is_rts7751r2d()) {
+		platform_device_register(&scif_device);
+	} else {
+		platform_device_register(&sci_device);
+		platform_device_register(&scif_device);
+	}
+
+	return platform_add_devices(sh7750_devices,
+				    ARRAY_SIZE(sh7750_devices));
+}
+arch_initcall(sh7750_devices_setup);
+
+static struct platform_device *sh7750_early_devices[] __initdata = {
+	&tmu0_device,
+#if defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7751) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7751R)
+	&tmu1_device,
+#endif
+};
+
+void __init plat_early_device_setup(void)
+{
+	struct platform_device *dev[1];
+
+	if (mach_is_rts7751r2d()) {
+		scif_platform_data.scscr |= SCSCR_CKE1;
+		dev[0] = &scif_device;
+		early_platform_add_devices(dev, 1);
+	} else {
+		dev[0] = &sci_device;
+		early_platform_add_devices(dev, 1);
+		dev[0] = &scif_device;
+		early_platform_add_devices(dev, 1);
+	}
+
+	early_platform_add_devices(sh7750_early_devices,
+				   ARRAY_SIZE(sh7750_early_devices));
+}
+
+enum {
+	UNUSED = 0,
+
+	/* interrupt sources */
+	IRL0, IRL1, IRL2, IRL3, /* only IRLM mode supported */
+	HUDI, GPIOI, DMAC,
+	PCIC0_PCISERR, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
+	PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3,
+	TMU3, TMU4, TMU0, TMU1, TMU2, RTC, SCI1, SCIF, WDT, REF,
+
+	/* interrupt groups */
+	PCIC1,
+};
+
+static struct intc_vect vectors[] __initdata = {
+	INTC_VECT(HUDI, 0x600), INTC_VECT(GPIOI, 0x620),
+	INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
+	INTC_VECT(TMU2, 0x440), INTC_VECT(TMU2, 0x460),
+	INTC_VECT(RTC, 0x480), INTC_VECT(RTC, 0x4a0),
+	INTC_VECT(RTC, 0x4c0),
+	INTC_VECT(SCI1, 0x4e0), INTC_VECT(SCI1, 0x500),
+	INTC_VECT(SCI1, 0x520), INTC_VECT(SCI1, 0x540),
+	INTC_VECT(SCIF, 0x700), INTC_VECT(SCIF, 0x720),
+	INTC_VECT(SCIF, 0x740), INTC_VECT(SCIF, 0x760),
+	INTC_VECT(WDT, 0x560),
+	INTC_VECT(REF, 0x580), INTC_VECT(REF, 0x5a0),
+};
+
+static struct intc_prio_reg prio_registers[] __initdata = {
+	{ 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
+	{ 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, REF, SCI1, 0 } },
+	{ 0xffd0000c, 0, 16, 4, /* IPRC */ { GPIOI, DMAC, SCIF, HUDI } },
+	{ 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
+	{ 0xfe080000, 0, 32, 4, /* INTPRI00 */ { 0, 0, 0, 0,
+						 TMU4, TMU3,
+						 PCIC1, PCIC0_PCISERR } },
+};
+
+static DECLARE_INTC_DESC(intc_desc, "sh7750", vectors, NULL,
+			 NULL, prio_registers, NULL);
+
+/* SH7750, SH7750S, SH7751 and SH7091 all have 4-channel DMA controllers */
+#if defined(CONFIG_CPU_SUBTYPE_SH7750) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7751) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7091)
+static struct intc_vect vectors_dma4[] __initdata = {
+	INTC_VECT(DMAC, 0x640), INTC_VECT(DMAC, 0x660),
+	INTC_VECT(DMAC, 0x680), INTC_VECT(DMAC, 0x6a0),
+	INTC_VECT(DMAC, 0x6c0),
+};
+
+static DECLARE_INTC_DESC(intc_desc_dma4, "sh7750_dma4",
+			 vectors_dma4, NULL,
+			 NULL, prio_registers, NULL);
+#endif
+
+/* SH7750R and SH7751R both have 8-channel DMA controllers */
+#if defined(CONFIG_CPU_SUBTYPE_SH7750R) || defined(CONFIG_CPU_SUBTYPE_SH7751R)
+static struct intc_vect vectors_dma8[] __initdata = {
+	INTC_VECT(DMAC, 0x640), INTC_VECT(DMAC, 0x660),
+	INTC_VECT(DMAC, 0x680), INTC_VECT(DMAC, 0x6a0),
+	INTC_VECT(DMAC, 0x780), INTC_VECT(DMAC, 0x7a0),
+	INTC_VECT(DMAC, 0x7c0), INTC_VECT(DMAC, 0x7e0),
+	INTC_VECT(DMAC, 0x6c0),
+};
+
+static DECLARE_INTC_DESC(intc_desc_dma8, "sh7750_dma8",
+			 vectors_dma8, NULL,
+			 NULL, prio_registers, NULL);
+#endif
+
+/* SH7750R, SH7751 and SH7751R all have two extra timer channels */
+#if defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7751) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7751R)
+static struct intc_vect vectors_tmu34[] __initdata = {
+	INTC_VECT(TMU3, 0xb00), INTC_VECT(TMU4, 0xb80),
+};
+
+static struct intc_mask_reg mask_registers[] __initdata = {
+	{ 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */
+	  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	    0, 0, 0, 0, 0, 0, TMU4, TMU3,
+	    PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
+	    PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2,
+	    PCIC1_PCIDMA3, PCIC0_PCISERR } },
+};
+
+static DECLARE_INTC_DESC(intc_desc_tmu34, "sh7750_tmu34",
+			 vectors_tmu34, NULL,
+			 mask_registers, prio_registers, NULL);
+#endif
+
+/* SH7750S, SH7750R, SH7751 and SH7751R all have IRLM priority registers */
+static struct intc_vect vectors_irlm[] __initdata = {
+	INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
+	INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
+};
+
+static DECLARE_INTC_DESC(intc_desc_irlm, "sh7750_irlm", vectors_irlm, NULL,
+			 NULL, prio_registers, NULL);
+
+/* SH7751 and SH7751R both have PCI */
+#if defined(CONFIG_CPU_SUBTYPE_SH7751) || defined(CONFIG_CPU_SUBTYPE_SH7751R)
+static struct intc_vect vectors_pci[] __initdata = {
+	INTC_VECT(PCIC0_PCISERR, 0xa00), INTC_VECT(PCIC1_PCIERR, 0xae0),
+	INTC_VECT(PCIC1_PCIPWDWN, 0xac0), INTC_VECT(PCIC1_PCIPWON, 0xaa0),
+	INTC_VECT(PCIC1_PCIDMA0, 0xa80), INTC_VECT(PCIC1_PCIDMA1, 0xa60),
+	INTC_VECT(PCIC1_PCIDMA2, 0xa40), INTC_VECT(PCIC1_PCIDMA3, 0xa20),
+};
+
+static struct intc_group groups_pci[] __initdata = {
+	INTC_GROUP(PCIC1, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
+		   PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3),
+};
+
+static DECLARE_INTC_DESC(intc_desc_pci, "sh7750_pci", vectors_pci, groups_pci,
+			 mask_registers, prio_registers, NULL);
+#endif
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7750) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
+	defined(CONFIG_CPU_SUBTYPE_SH7091)
+void __init plat_irq_setup(void)
+{
+	/*
+	 * same vectors for SH7750, SH7750S and SH7091 except for IRLM,
+	 * see below..
+	 */
+	register_intc_controller(&intc_desc);
+	register_intc_controller(&intc_desc_dma4);
+}
+#endif
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7750R)
+void __init plat_irq_setup(void)
+{
+	register_intc_controller(&intc_desc);
+	register_intc_controller(&intc_desc_dma8);
+	register_intc_controller(&intc_desc_tmu34);
+}
+#endif
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7751)
+void __init plat_irq_setup(void)
+{
+	register_intc_controller(&intc_desc);
+	register_intc_controller(&intc_desc_dma4);
+	register_intc_controller(&intc_desc_tmu34);
+	register_intc_controller(&intc_desc_pci);
+}
+#endif
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7751R)
+void __init plat_irq_setup(void)
+{
+	register_intc_controller(&intc_desc);
+	register_intc_controller(&intc_desc_dma8);
+	register_intc_controller(&intc_desc_tmu34);
+	register_intc_controller(&intc_desc_pci);
+}
+#endif
+
+#define INTC_ICR	0xffd00000UL
+#define INTC_ICR_IRLM   (1<<7)
+
+void __init plat_irq_setup_pins(int mode)
+{
+#if defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7091)
+	BUG(); /* impossible to mask interrupts on SH7750 and SH7091 */
+	return;
+#endif
+
+	switch (mode) {
+	case IRQ_MODE_IRQ: /* individual interrupt mode for IRL3-0 */
+		__raw_writew(__raw_readw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);
+		register_intc_controller(&intc_desc_irlm);
+		break;
+	default:
+		BUG();
+	}
+}