1 // SPDX-License-Identifier: GPL-2.0-only
5  *      nettel.c -- mappings for NETtel/SecureEdge/SnapGear (x86) boards.
7  *      (C) Copyright 2000-2001, Greg Ungerer (gerg@snapgear.com)
8  *      (C) Copyright 2001-2002, SnapGear (www.snapgear.com)
20 #include <linux/mtd/cfi.h>
48 	((((size)-(64*1024)) >> SC520_PAR_SIZE_SHIFT) & SC520_PAR_SIZE_MASK) | \
140  *	Set the Intel flash back to read mode since some old boot
145 	struct cfi_private *cfi = nettel_intel_map.fldrv_priv;  in nettel_reboot_notifier()  local
148 	/* Make sure all FLASH chips are put back into read mode */  in nettel_reboot_notifier()
150 		cfi_send_gen_cmd(0xff, 0x55, b, &nettel_intel_map, cfi,  in nettel_reboot_notifier()
151 			cfi->device_type, NULL);  in nettel_reboot_notifier()
182 		return(-EIO);  in nettel_init()
209 	 *	boot FLASH device. Typically this is a small (1 to 2MB)  in nettel_init()
210 	 *	AMD FLASH part. It seems that device size is about the  in nettel_init()
224 		return(-EIO);  in nettel_init()
229 		printk(KERN_NOTICE "SNAPGEAR: AMD flash device size = %dK\n",  in nettel_init()
230 			(int)(amd_mtd->size>>10));  in nettel_init()
232 		amd_mtd->owner = THIS_MODULE;  in nettel_init()
236 		if (amd_mtd->size < AMD_WINDOW_MAXSIZE)  in nettel_init()
237 			num_amd_partitions--;  in nettel_init()
242 		 *	Map the Intel flash into memory after the AMD  in nettel_init()
252 		/* INTEL boot FLASH */  in nettel_init()
283 		/* Only AMD flash supported */  in nettel_init()
284 		rc = -ENXIO;  in nettel_init()
291 	 *	We have determined the INTEL FLASH configuration, so lets  in nettel_init()
303 	/* Probe for the size of the first Intel flash */  in nettel_init()
309 		rc = -EIO;  in nettel_init()
316 		rc = -ENXIO;  in nettel_init()
321 	intel0size = intel_mtd->size;  in nettel_init()
325 	 *	Map second Intel FLASH right after first. Set its size to the  in nettel_init()
326 	 *	same maxsize used for the first Intel FLASH.  in nettel_init()
343 		rc = -EIO;  in nettel_init()
349 		rc = -ENXIO;  in nettel_init()
353 	intel1size = intel_mtd->size - intel0size;  in nettel_init()
361 	printk(KERN_NOTICE "SNAPGEAR: Intel flash device size = %lldKiB\n",  in nettel_init()
362 	       (unsigned long long)(intel_mtd->size >> 10));  in nettel_init()
364 	intel_mtd->owner = THIS_MODULE;  in nettel_init()
371 		 *	Must allow for BIOS region at end of FLASH.  in nettel_init()
373 		nettel_intel_partitions[1].size = (intel0size + intel1size) -  in nettel_init()
374 			(1024*1024 + intel_mtd->erasesize);  in nettel_init()
377 			(intel0size + intel1size) - intel_mtd->erasesize;  in nettel_init()
378 		nettel_intel_partitions[4].size = intel_mtd->erasesize;  in nettel_init()
385 		num_intel_partitions -= 2;  in nettel_init()
460 MODULE_DESCRIPTION("SnapGear/SecureEdge FLASH support");