arch/sh/boards/mach-sdk7780/setup.c

Source file repositories/reference/linux-study-clean/arch/sh/boards/mach-sdk7780/setup.c

File Facts

System: Linux kernel
Corpus path: arch/sh/boards/mach-sdk7780/setup.c
Extension: .c
Size: 2348 bytes
Lines: 97
Domain: Architecture Layer
Bucket: arch/sh
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.

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

linux/init.h
linux/types.h
linux/platform_device.h
linux/ata_platform.h
asm/machvec.h
mach/sdk7780.h
asm/heartbeat.h
asm/io.h
asm/addrspace.h

Detected Declarations

function sdk7780_devices_setup
function sdk7780_setup
module init sdk7780_devices_setup

Annotated Snippet

device_initcall(sdk7780_devices_setup);

static void __init sdk7780_setup(char **cmdline_p)
{
	u16 ver = __raw_readw(FPGA_FPVERR);
	u16 dateStamp = __raw_readw(FPGA_FPDATER);

	printk(KERN_INFO "Renesas Technology Europe SDK7780 support.\n");
	printk(KERN_INFO "Board version: %d (revision %d), "
			 "FPGA version: %d (revision %d), datestamp : %d\n",
			 (ver >> 12) & 0xf, (ver >> 8) & 0xf,
			 (ver >>  4) & 0xf, ver & 0xf,
			 dateStamp);

	/* Setup pin mux'ing for PCIC */
	__raw_writew(0x0000, GPIO_PECR);
}

/*
 * The Machine Vector
 */
static struct sh_machine_vector mv_se7780 __initmv = {
	.mv_name        = "Renesas SDK7780-R3" ,
	.mv_setup		= sdk7780_setup,
	.mv_init_irq	= init_sdk7780_IRQ,
};

Annotation

Immediate include surface: `linux/init.h`, `linux/types.h`, `linux/platform_device.h`, `linux/ata_platform.h`, `asm/machvec.h`, `mach/sdk7780.h`, `asm/heartbeat.h`, `asm/io.h`.
Detected declarations: `function sdk7780_devices_setup`, `function sdk7780_setup`, `module init sdk7780_devices_setup`.
Atlas domain: Architecture Layer / arch/sh.
Implementation status: integration implementation candidate.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.