arch/m68k/amiga/platform.c

Source file repositories/reference/linux-study-clean/arch/m68k/amiga/platform.c

File Facts

System
Linux kernel
Corpus path
arch/m68k/amiga/platform.c
Extension
.c
Size
5672 bytes
Lines
256
Domain
Architecture Layer
Bucket
arch/m68k
Inferred role
Architecture Layer: exported/initcall integration point
Status
integration 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

subsys_initcall(amiga_init_bus);


static int __init z_dev_present(zorro_id id)
{
	unsigned int i;

	for (i = 0; i < zorro_num_autocon; i++) {
		const struct ExpansionRom *rom = &zorro_autocon_init[i].rom;
		if (be16_to_cpu(rom->er_Manufacturer) == ZORRO_MANUF(id) &&
		    rom->er_Product == ZORRO_PROD(id))
			return 1;
	}

	return 0;
}

#else /* !CONFIG_ZORRO */

static inline int z_dev_present(zorro_id id) { return 0; }

#endif /* !CONFIG_ZORRO */


static const struct resource a3000_scsi_resource __initconst = {
	.start	= 0xdd0000,
	.end	= 0xdd00ff,
	.flags	= IORESOURCE_MEM,
};


static const struct resource a4000t_scsi_resource __initconst = {
	.start	= 0xdd0000,
	.end	= 0xdd0fff,
	.flags	= IORESOURCE_MEM,
};


static const struct resource a1200_ide_resource __initconst = {
	.start	= 0xda0000,
	.end	= 0xda1fff,
	.flags	= IORESOURCE_MEM,
};

static const struct gayle_ide_platform_data a1200_ide_pdata __initconst = {
	.base		= 0xda0000,
	.irqport	= 0xda9000,
	.explicit_ack	= 1,
};


static const struct resource a4000_ide_resource __initconst = {
	.start	= 0xdd2000,
	.end	= 0xdd3fff,
	.flags	= IORESOURCE_MEM,
};

static const struct gayle_ide_platform_data a4000_ide_pdata __initconst = {
	.base		= 0xdd2020,
	.irqport	= 0xdd3020,
	.explicit_ack	= 0,
};


static const struct resource amiga_rtc_resource __initconst = {
	.start	= 0x00dc0000,
	.end	= 0x00dcffff,
	.flags	= IORESOURCE_MEM,
};


static int __init amiga_init_devices(void)
{
	struct platform_device *pdev;
	int error;

	if (!MACH_IS_AMIGA)
		return -ENODEV;

	/* video hardware */
	if (AMIGAHW_PRESENT(AMI_VIDEO)) {
		pdev = platform_device_register_simple("amiga-video", -1, NULL,
						       0);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}


	/* sound hardware */
	if (AMIGAHW_PRESENT(AMI_AUDIO)) {

Annotation

Implementation Notes