cregit-Linux how code gets into the kernel

Release 4.11 drivers/mtd/maps/solutionengine.c

Directory: drivers/mtd/maps
/*
 * Flash and EPROM on Hitachi Solution Engine and similar boards.
 *
 * (C) 2001 Red Hat, Inc.
 *
 * GPL'd
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <linux/errno.h>


static struct mtd_info *flash_mtd;

static struct mtd_info *eprom_mtd;


struct map_info soleng_eprom_map = {
	.name = "Solution Engine EPROM",
	.size = 0x400000,
	.bankwidth = 4,
};


struct map_info soleng_flash_map = {
	.name = "Solution Engine FLASH",
	.size = 0x400000,
	.bankwidth = 4,
};


static const char * const probes[] = { "RedBoot", "cmdlinepart", NULL };


static int __init init_soleng_maps(void) { /* First probe at offset 0 */ soleng_flash_map.phys = 0; soleng_flash_map.virt = (void __iomem *)P2SEGADDR(0); soleng_eprom_map.phys = 0x01000000; soleng_eprom_map.virt = (void __iomem *)P1SEGADDR(0x01000000); simple_map_init(&soleng_eprom_map); simple_map_init(&soleng_flash_map); printk(KERN_NOTICE "Probing for flash chips at 0x00000000:\n"); flash_mtd = do_map_probe("cfi_probe", &soleng_flash_map); if (!flash_mtd) { /* Not there. Try swapping */ printk(KERN_NOTICE "Probing for flash chips at 0x01000000:\n"); soleng_flash_map.phys = 0x01000000; soleng_flash_map.virt = P2SEGADDR(0x01000000); soleng_eprom_map.phys = 0; soleng_eprom_map.virt = P1SEGADDR(0); flash_mtd = do_map_probe("cfi_probe", &soleng_flash_map); if (!flash_mtd) { /* Eep. */ printk(KERN_NOTICE "Flash chips not detected at either possible location.\n"); return -ENXIO; } } printk(KERN_NOTICE "Solution Engine: Flash at 0x%08lx, EPROM at 0x%08lx\n", soleng_flash_map.phys & 0x1fffffff, soleng_eprom_map.phys & 0x1fffffff); flash_mtd->owner = THIS_MODULE; eprom_mtd = do_map_probe("map_rom", &soleng_eprom_map); if (eprom_mtd) { eprom_mtd->owner = THIS_MODULE; mtd_device_register(eprom_mtd, NULL, 0); } mtd_device_parse_register(flash_mtd, probes, NULL, NULL, 0); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds15168.33%114.29%
David Woodhouse5123.08%114.29%
Thomas Gleixner104.52%114.29%
Jamie Iles52.26%114.29%
Paul Bolle20.90%114.29%
Artem B. Bityutskiy10.45%114.29%
Dmitry Baryshkov10.45%114.29%
Total221100.00%7100.00%


static void __exit cleanup_soleng_maps(void) { if (eprom_mtd) { mtd_device_unregister(eprom_mtd); map_destroy(eprom_mtd); } mtd_device_unregister(flash_mtd); map_destroy(flash_mtd); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds3394.29%150.00%
Jamie Iles25.71%150.00%
Total35100.00%2100.00%

module_init(init_soleng_maps); module_exit(cleanup_soleng_maps); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); MODULE_DESCRIPTION("MTD map driver for Hitachi SolutionEngine (and similar) boards");

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds26970.98%19.09%
David Woodhouse7519.79%218.18%
Art Haas123.17%19.09%
Thomas Gleixner102.64%19.09%
Jamie Iles71.85%19.09%
Artem B. Bityutskiy20.53%218.18%
Paul Bolle20.53%19.09%
Dmitry Baryshkov10.26%19.09%
Adrian Bunk10.26%19.09%
Total379100.00%11100.00%
Directory: drivers/mtd/maps
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