arch/sh/kernel/cpu/sh4/setup-sh7760.c

Source file repositories/reference/linux-study-clean/arch/sh/kernel/cpu/sh4/setup-sh7760.c

File Facts

System
Linux kernel
Corpus path
arch/sh/kernel/cpu/sh4/setup-sh7760.c
Extension
.c
Size
8554 bytes
Lines
298
Domain
Architecture Layer
Bucket
arch/sh
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * SH7760 Setup
 *
 *  Copyright (C) 2006  Paul Mundt
 */
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/serial.h>
#include <linux/sh_timer.h>
#include <linux/sh_intc.h>
#include <linux/serial_sci.h>
#include <linux/io.h>
#include <asm/platform_early.h>

enum {
	UNUSED = 0,

	/* interrupt sources */
	IRL0, IRL1, IRL2, IRL3,
	HUDI, GPIOI, DMAC,
	IRQ4, IRQ5, IRQ6, IRQ7,
	HCAN20, HCAN21,
	SSI0, SSI1,
	HAC0, HAC1,
	I2C0, I2C1,
	USB, LCDC,
	DMABRG0, DMABRG1, DMABRG2,
	SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI,
	SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI,
	SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI,
	SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEI,
	HSPI,
	MMCIF0, MMCIF1, MMCIF2, MMCIF3,
	MFI, ADC, CMT,
	TMU0, TMU1, TMU2,
	WDT, REF,

	/* interrupt groups */
	DMABRG, SCIF0, SCIF1, SCIF2, SIM, MMCIF,
};

static struct intc_vect vectors[] __initdata = {
	INTC_VECT(HUDI, 0x600), INTC_VECT(GPIOI, 0x620),
	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),
	INTC_VECT(IRQ4, 0x800), INTC_VECT(IRQ5, 0x820),
	INTC_VECT(IRQ6, 0x840), INTC_VECT(IRQ6, 0x860),
	INTC_VECT(HCAN20, 0x900), INTC_VECT(HCAN21, 0x920),
	INTC_VECT(SSI0, 0x940), INTC_VECT(SSI1, 0x960),
	INTC_VECT(HAC0, 0x980), INTC_VECT(HAC1, 0x9a0),
	INTC_VECT(I2C0, 0x9c0), INTC_VECT(I2C1, 0x9e0),
	INTC_VECT(USB, 0xa00), INTC_VECT(LCDC, 0xa20),
	INTC_VECT(DMABRG0, 0xa80), INTC_VECT(DMABRG1, 0xaa0),
	INTC_VECT(DMABRG2, 0xac0),
	INTC_VECT(SCIF0_ERI, 0x880), INTC_VECT(SCIF0_RXI, 0x8a0),
	INTC_VECT(SCIF0_BRI, 0x8c0), INTC_VECT(SCIF0_TXI, 0x8e0),
	INTC_VECT(SCIF1_ERI, 0xb00), INTC_VECT(SCIF1_RXI, 0xb20),
	INTC_VECT(SCIF1_BRI, 0xb40), INTC_VECT(SCIF1_TXI, 0xb60),
	INTC_VECT(SCIF2_ERI, 0xb80), INTC_VECT(SCIF2_RXI, 0xba0),
	INTC_VECT(SCIF2_BRI, 0xbc0), INTC_VECT(SCIF2_TXI, 0xbe0),
	INTC_VECT(SIM_ERI, 0xc00), INTC_VECT(SIM_RXI, 0xc20),
	INTC_VECT(SIM_TXI, 0xc40), INTC_VECT(SIM_TEI, 0xc60),
	INTC_VECT(HSPI, 0xc80),
	INTC_VECT(MMCIF0, 0xd00), INTC_VECT(MMCIF1, 0xd20),
	INTC_VECT(MMCIF2, 0xd40), INTC_VECT(MMCIF3, 0xd60),
	INTC_VECT(MFI, 0xe80), /* 0xf80 according to data sheet */
	INTC_VECT(ADC, 0xf80), INTC_VECT(CMT, 0xfa0),
	INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
	INTC_VECT(TMU2, 0x440), INTC_VECT(TMU2, 0x460),
	INTC_VECT(WDT, 0x560),
	INTC_VECT(REF, 0x580), INTC_VECT(REF, 0x5a0),
};

static struct intc_group groups[] __initdata = {
	INTC_GROUP(DMABRG, DMABRG0, DMABRG1, DMABRG2),
	INTC_GROUP(SCIF0, SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI),
	INTC_GROUP(SCIF1, SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI),
	INTC_GROUP(SCIF2, SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI),
	INTC_GROUP(SIM, SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEI),
	INTC_GROUP(MMCIF, MMCIF0, MMCIF1, MMCIF2, MMCIF3),
};

static struct intc_mask_reg mask_registers[] __initdata = {
	{ 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */
	  { IRQ4, IRQ5, IRQ6, IRQ7, 0, 0, HCAN20, HCAN21,
	    SSI0, SSI1, HAC0, HAC1, I2C0, I2C1, USB, LCDC,

Annotation

Implementation Notes