cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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driver_chipcommon_pflash.c (1077B)

      1/*
      2 * Broadcom specific AMBA
      3 * ChipCommon parallel flash
      4 *
      5 * Licensed under the GNU/GPL. See COPYING for details.
      6 */
      7
      8#include "bcma_private.h"
      9
     10#include <linux/bcma/bcma.h>
     11#include <linux/mtd/physmap.h>
     12#include <linux/platform_device.h>
     13
     14static const char * const part_probes[] = { "bcm47xxpart", NULL };
     15
     16static struct physmap_flash_data bcma_pflash_data = {
     17	.part_probe_types	= part_probes,
     18};
     19
     20static struct resource bcma_pflash_resource = {
     21	.name	= "bcma_pflash",
     22	.flags  = IORESOURCE_MEM,
     23};
     24
     25struct platform_device bcma_pflash_dev = {
     26	.name		= "physmap-flash",
     27	.dev		= {
     28		.platform_data  = &bcma_pflash_data,
     29	},
     30	.resource	= &bcma_pflash_resource,
     31	.num_resources	= 1,
     32};
     33
     34int bcma_pflash_init(struct bcma_drv_cc *cc)
     35{
     36	struct bcma_pflash *pflash = &cc->pflash;
     37
     38	pflash->present = true;
     39
     40	if (!(bcma_read32(cc->core, BCMA_CC_FLASH_CFG) & BCMA_CC_FLASH_CFG_DS))
     41		bcma_pflash_data.width = 1;
     42	else
     43		bcma_pflash_data.width = 2;
     44
     45	bcma_pflash_resource.start = BCMA_SOC_FLASH2;
     46	bcma_pflash_resource.end = BCMA_SOC_FLASH2 + BCMA_SOC_FLASH2_SZ;
     47
     48	return 0;
     49}