drivers/brcmstb/sysfs.c - kernel/bruno - Git at Google

 /*
  * Copyright (C) 2009 Broadcom Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */

 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/sysfs.h>
 #include <linux/device.h>
 #include <linux/ctype.h>
 #include <linux/platform_device.h>

 #ifdef CONFIG_MIPS
 #include <asm/cpu-info.h>
 #include <asm/r4kcache.h>
 #include <asm/mipsregs.h>
 #endif

 #include <linux/brcmstb/brcmstb.h>

 atomic_t brcm_unaligned_fp_count = ATOMIC_INIT(0);
 atomic_t brcm_rdhwr_count = ATOMIC_INIT(0);

 static struct platform_device *brcmstb_pdev;

 static ssize_t show_unaligned_fp_count(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%d\n",
 		atomic_read(&brcm_unaligned_fp_count));
 }

 static ssize_t show_rdhwr_count(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%d\n",
 		atomic_read(&brcm_rdhwr_count));
 }

 static ssize_t show_chip_id(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%04x\n", BRCM_CHIP_ID());
 }

 static ssize_t show_chip_rev(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%02X\n", BRCM_CHIP_REV() + 0xa0);
 }

 static ssize_t show_bmem(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	int idx = 0;
 	unsigned long addr = 0, size = 0;
 	const char *name = attr->attr.name;

 	while (*name != 0) {
 		if (isdigit(*name)) {
 			idx = simple_strtoul(name, NULL, 10);
 			break;
 		}
 		name++;
 	}
 	bmem_region_info(idx, &addr, &size);

 	return snprintf(buf, PAGE_SIZE, "0x%08lx 0x%08lx\n", addr, size);
 }

 static ssize_t show_ocap_partition(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "0x%08lx 0x%08lx\n",
 		brcm_mtd_ocap_start, brcm_mtd_ocap_len);
 }

 static ssize_t show_cfe_boardname(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%s\n", brcm_cfe_boardname);
 }

 #ifdef CONFIG_MIPS
 static ssize_t show_cache_max_writeback(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct brcm_cache_info info;
 	brcm_get_cache_info(&info);
 	return snprintf(buf, PAGE_SIZE, "%d\n", info.max_writeback);
 }

 static ssize_t show_cache_max_writethrough(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct brcm_cache_info info;
 	brcm_get_cache_info(&info);
 	return snprintf(buf, PAGE_SIZE, "%d\n", info.max_writethrough);
 }

 static ssize_t show_cache_prefetch_enabled(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct brcm_cache_info info;
 	brcm_get_cache_info(&info);
 	return snprintf(buf, PAGE_SIZE, "%d\n", info.prefetch_enabled);
 }

 static ssize_t show_cpu_name(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%s\n", __cpu_name[0]);
 }

 static ssize_t show_cp0_config_regs(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "0x%08x 0x%08x 0x%08x\n",
 		__read_32bit_c0_register($16, 0),
 		__read_32bit_c0_register($16, 1),
 		__read_32bit_c0_register($16, 7));
 }

 static inline ssize_t show_cp0_brcm_regs(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE,
 		"0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
 		__read_32bit_c0_register($22, 0),
 		__read_32bit_c0_register($22, 1),
 		__read_32bit_c0_register($22, 2),
 		__read_32bit_c0_register($22, 3),
 		__read_32bit_c0_register($22, 4),
 		__read_32bit_c0_register($22, 5),
 		__read_32bit_c0_register($22, 6),
 		__read_32bit_c0_register($22, 7));
 }

 static ssize_t show_cpu_khz(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%ld\n", brcm_adj_cpu_khz);
 }
 #endif

 static inline ssize_t dump_core_regs(unsigned long cbr,
 	const int *regs, int n_regs, char *buf)
 {
 	int i, bytes = 0;

 	for (i = 0; i < n_regs; i++)
 		bytes += snprintf(&buf[bytes], PAGE_SIZE - bytes, "0x%08lx ",
 			DEV_RD(cbr + regs[i]));
 	buf[bytes - 1] = '\n';
 	return bytes;
 }

 #ifdef CONFIG_CPU_BMIPS3300
 static ssize_t show_bmips3300_core_regs(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	const int regs[] = { BMIPS_RAC_CONFIG, BMIPS_RAC_ADDRESS_RANGE };

 	return dump_core_regs(__BMIPS_GET_CBR(), regs, ARRAY_SIZE(regs), buf);
 }
 #endif

 #ifdef CONFIG_CPU_BMIPS4380
 static ssize_t show_bmips4380_core_regs(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	const int regs[] = {
 		BMIPS_RAC_CONFIG, BMIPS_RAC_ADDRESS_RANGE, BMIPS_RAC_CONFIG_1,
 		BMIPS_L2_CONFIG, BMIPS_LMB_CONTROL, BMIPS_SYSTEM_BASE,
 		BMIPS_PERF_GLOBAL_CONTROL, BMIPS_PERF_CONTROL_0,
 		BMIPS_PERF_CONTROL_1, BMIPS_PERF_COUNTER_0,
 		BMIPS_PERF_COUNTER_1, BMIPS_PERF_COUNTER_2,
 		BMIPS_PERF_COUNTER_3, BMIPS_RELO_VECTOR_CONTROL_0,
 		BMIPS_RELO_VECTOR_CONTROL_1 };

 	return dump_core_regs(__BMIPS_GET_CBR(), regs, ARRAY_SIZE(regs), buf);
 }
 #endif

 /* Display secondary cache module settings */

 #if defined(CONFIG_BRCM_ZSCM_L2)

 static ssize_t show_zscm_regs(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE,
 		"0x%08lx 0x%08lx 0x%08lx 0x%08lx 0x%08lx "
 		"0x%08lx 0x%08lx 0x%08lx 0x%08lx 0x%08lx\n",
 		bmips_read_zscm_reg(0x00), bmips_read_zscm_reg(0x10),
 		bmips_read_zscm_reg(0x20), bmips_read_zscm_reg(0x30),
 		bmips_read_zscm_reg(0x40), bmips_read_zscm_reg(0x50),
 		bmips_read_zscm_reg(0x60), bmips_read_zscm_reg(0x70),
 		bmips_read_zscm_reg(0x80), bmips_read_zscm_reg(0x90));
 }
 #endif

 static struct device_attribute brcmstb_attr_list[] = {
 	__ATTR(unaligned_fp_count, 0444, show_unaligned_fp_count, NULL),
 	__ATTR(rdhwr_count, 0444, show_rdhwr_count, NULL),
 	__ATTR(chip_id, 0444, show_chip_id, NULL),
 	__ATTR(chip_rev, 0444, show_chip_rev, NULL),
 	__ATTR(ocap_partition, 0444, show_ocap_partition, NULL),
 	__ATTR(cfe_boardname, 0444, show_cfe_boardname, NULL),
 #if defined(CONFIG_MIPS)
 	__ATTR(cache_max_writeback, 0444, show_cache_max_writeback, NULL),
 	__ATTR(cache_max_writethrough, 0444, show_cache_max_writethrough, NULL),
 	__ATTR(cache_prefetch_enabled, 0444, show_cache_prefetch_enabled, NULL),
 	__ATTR(cpu_name, 0444, show_cpu_name, NULL),
 	__ATTR(cp0_config_regs, 0444, show_cp0_config_regs, NULL),
 	__ATTR(cpu_khz, 0444, show_cpu_khz, NULL),
 #endif
 #if   defined(CONFIG_CPU_BMIPS3300)
 	__ATTR(cp0_brcm_regs, 0444, show_cp0_brcm_regs, NULL),
 	__ATTR(bmips3300_core_regs, 0444, show_bmips3300_core_regs, NULL),
 #elif defined(CONFIG_CPU_BMIPS4380)
 	__ATTR(cp0_brcm_regs, 0444, show_cp0_brcm_regs, NULL),
 	__ATTR(bmips4380_core_regs, 0444, show_bmips4380_core_regs, NULL),
 #elif defined(CONFIG_CPU_BMIPS5000)
 	__ATTR(cp0_brcm_regs, 0444, show_cp0_brcm_regs, NULL),
 #endif
 #if defined(CONFIG_BRCM_ZSCM_L2)
 	__ATTR(zscm_regs, 0444, show_zscm_regs, NULL),
 #endif
 #if defined(CONFIG_BRCM_CPU_DIV)
 	__ATTR(cpu_div, 0644, brcm_pm_show_cpu_div, brcm_pm_store_cpu_div),
 #endif
 #if defined(CONFIG_BRCM_CPU_PLL)
 	__ATTR(cpu_pll, 0644, brcm_pm_show_cpu_pll, brcm_pm_store_cpu_pll),
 #endif
 	__ATTR(sata_power, 0644, brcm_pm_show_sata_power,
 		brcm_pm_store_sata_power),
 	__ATTR(ddr_timeout, 0644, brcm_pm_show_ddr_timeout,
 		brcm_pm_store_ddr_timeout),
 	__ATTR(standby_flags, 0644, brcm_pm_show_standby_flags,
 		brcm_pm_store_standby_flags),
 	__ATTR(standby_timeout, 0644, brcm_pm_show_standby_timeout,
 		brcm_pm_store_standby_timeout),
 	__ATTR(time_at_wakeup, 0444, brcm_pm_show_time_at_wakeup, NULL),
 #if defined(CONFIG_BRCM_HAS_1GB_MEMC1)
 	__ATTR(memc1_power, 0644, brcm_pm_show_memc1_power,
 		brcm_pm_store_memc1_power),
 #endif
 	__ATTR(halt_mode, 0644, brcm_pm_show_halt_mode,
 		brcm_pm_store_halt_mode),
 	__ATTR_NULL,
 };

 static int __init brcm_pdev_init(void)
 {
 	struct device *dev;
 	int i;
 	struct device_attribute *attr;

 	brcmstb_pdev = platform_device_alloc("brcmstb", -1);
 	if (brcmstb_pdev == NULL) {
 		printk(KERN_WARNING "%s: can't allocate device\n",
 			__func__);
 		return -ENODEV;
 	}
 	platform_device_add(brcmstb_pdev);
 	dev = &brcmstb_pdev->dev;

 	for (attr = brcmstb_attr_list; attr->attr.name != NULL; attr++)
 		if (device_create_file(dev, attr) != 0)
 			WARN(1, "Can't create sysfs file\n");

 	/* create an attribute for each bmem region */
 	for (i = 0; ; i++) {
 		unsigned long addr, size;
 		struct device_attribute *attr;
 		char *name;

 		if (bmem_region_info(i, &addr, &size) < 0)
 			break;
 		attr = kzalloc(sizeof(*attr), GFP_KERNEL);
 		if (attr == NULL)
 			break;

 		name = kzalloc(16, GFP_KERNEL);
 		if (name == NULL)
 			break;
 		snprintf(name, 16, "bmem.%d", i);

 		sysfs_attr_init(&attr->attr);
 		attr->attr.name = name;
 		attr->attr.mode = 0444;
 		attr->show = show_bmem;

 		if (device_create_file(dev, attr) != 0)
 			WARN(1, "Can't create sysfs file\n");
 	}

 	return 0;
 }

 arch_initcall(brcm_pdev_init);
	/*
	* Copyright (C) 2009 Broadcom Corporation
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	*/

	#include <linux/kernel.h>
	#include <linux/module.h>
	#include <linux/init.h>
	#include <linux/types.h>
	#include <linux/sysfs.h>
	#include <linux/device.h>
	#include <linux/ctype.h>
	#include <linux/platform_device.h>

	#ifdef CONFIG_MIPS
	#include <asm/cpu-info.h>
	#include <asm/r4kcache.h>
	#include <asm/mipsregs.h>
	#endif

	#include <linux/brcmstb/brcmstb.h>

	atomic_t brcm_unaligned_fp_count = ATOMIC_INIT(0);
	atomic_t brcm_rdhwr_count = ATOMIC_INIT(0);

	static struct platform_device *brcmstb_pdev;

	static ssize_t show_unaligned_fp_count(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE, "%d\n",
	atomic_read(&brcm_unaligned_fp_count));
	}

	static ssize_t show_rdhwr_count(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE, "%d\n",
	atomic_read(&brcm_rdhwr_count));
	}

	static ssize_t show_chip_id(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE, "%04x\n", BRCM_CHIP_ID());
	}

	static ssize_t show_chip_rev(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE, "%02X\n", BRCM_CHIP_REV() + 0xa0);
	}

	static ssize_t show_bmem(struct device *dev,
	struct device_attribute attr, char buf)
	{
	int idx = 0;
	unsigned long addr = 0, size = 0;
	const char *name = attr->attr.name;

	while (*name != 0) {
	if (isdigit(*name)) {
	idx = simple_strtoul(name, NULL, 10);
	break;
	}
	name++;
	}
	bmem_region_info(idx, &addr, &size);

	return snprintf(buf, PAGE_SIZE, "0x%08lx 0x%08lx\n", addr, size);
	}

	static ssize_t show_ocap_partition(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE, "0x%08lx 0x%08lx\n",
	brcm_mtd_ocap_start, brcm_mtd_ocap_len);
	}

	static ssize_t show_cfe_boardname(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE, "%s\n", brcm_cfe_boardname);
	}

	#ifdef CONFIG_MIPS
	static ssize_t show_cache_max_writeback(struct device *dev,
	struct device_attribute attr, char buf)
	{
	struct brcm_cache_info info;
	brcm_get_cache_info(&info);
	return snprintf(buf, PAGE_SIZE, "%d\n", info.max_writeback);
	}

	static ssize_t show_cache_max_writethrough(struct device *dev,
	struct device_attribute attr, char buf)
	{
	struct brcm_cache_info info;
	brcm_get_cache_info(&info);
	return snprintf(buf, PAGE_SIZE, "%d\n", info.max_writethrough);
	}

	static ssize_t show_cache_prefetch_enabled(struct device *dev,
	struct device_attribute attr, char buf)
	{
	struct brcm_cache_info info;
	brcm_get_cache_info(&info);
	return snprintf(buf, PAGE_SIZE, "%d\n", info.prefetch_enabled);
	}

	static ssize_t show_cpu_name(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE, "%s\n", __cpu_name[0]);
	}

	static ssize_t show_cp0_config_regs(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE, "0x%08x 0x%08x 0x%08x\n",
	__read_32bit_c0_register($16, 0),
	__read_32bit_c0_register($16, 1),
	__read_32bit_c0_register($16, 7));
	}

	static inline ssize_t show_cp0_brcm_regs(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE,
	"0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
	__read_32bit_c0_register($22, 0),
	__read_32bit_c0_register($22, 1),
	__read_32bit_c0_register($22, 2),
	__read_32bit_c0_register($22, 3),
	__read_32bit_c0_register($22, 4),
	__read_32bit_c0_register($22, 5),
	__read_32bit_c0_register($22, 6),
	__read_32bit_c0_register($22, 7));
	}

	static ssize_t show_cpu_khz(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE, "%ld\n", brcm_adj_cpu_khz);
	}
	#endif

	static inline ssize_t dump_core_regs(unsigned long cbr,
	const int regs, int n_regs, char buf)
	{
	int i, bytes = 0;

	for (i = 0; i < n_regs; i++)
	bytes += snprintf(&buf[bytes], PAGE_SIZE - bytes, "0x%08lx ",
	DEV_RD(cbr + regs[i]));
	buf[bytes - 1] = '\n';
	return bytes;
	}

	#ifdef CONFIG_CPU_BMIPS3300
	static ssize_t show_bmips3300_core_regs(struct device *dev,
	struct device_attribute attr, char buf)
	{
	const int regs[] = { BMIPS_RAC_CONFIG, BMIPS_RAC_ADDRESS_RANGE };

	return dump_core_regs(__BMIPS_GET_CBR(), regs, ARRAY_SIZE(regs), buf);
	}
	#endif

	#ifdef CONFIG_CPU_BMIPS4380
	static ssize_t show_bmips4380_core_regs(struct device *dev,
	struct device_attribute attr, char buf)
	{
	const int regs[] = {
	BMIPS_RAC_CONFIG, BMIPS_RAC_ADDRESS_RANGE, BMIPS_RAC_CONFIG_1,
	BMIPS_L2_CONFIG, BMIPS_LMB_CONTROL, BMIPS_SYSTEM_BASE,
	BMIPS_PERF_GLOBAL_CONTROL, BMIPS_PERF_CONTROL_0,
	BMIPS_PERF_CONTROL_1, BMIPS_PERF_COUNTER_0,
	BMIPS_PERF_COUNTER_1, BMIPS_PERF_COUNTER_2,
	BMIPS_PERF_COUNTER_3, BMIPS_RELO_VECTOR_CONTROL_0,
	BMIPS_RELO_VECTOR_CONTROL_1 };

	return dump_core_regs(__BMIPS_GET_CBR(), regs, ARRAY_SIZE(regs), buf);
	}
	#endif

	/* Display secondary cache module settings */

	#if defined(CONFIG_BRCM_ZSCM_L2)

	static ssize_t show_zscm_regs(struct device *dev,
	struct device_attribute attr, char buf)
	{
	return snprintf(buf, PAGE_SIZE,
	"0x%08lx 0x%08lx 0x%08lx 0x%08lx 0x%08lx "
	"0x%08lx 0x%08lx 0x%08lx 0x%08lx 0x%08lx\n",
	bmips_read_zscm_reg(0x00), bmips_read_zscm_reg(0x10),
	bmips_read_zscm_reg(0x20), bmips_read_zscm_reg(0x30),
	bmips_read_zscm_reg(0x40), bmips_read_zscm_reg(0x50),
	bmips_read_zscm_reg(0x60), bmips_read_zscm_reg(0x70),
	bmips_read_zscm_reg(0x80), bmips_read_zscm_reg(0x90));
	}
	#endif

	static struct device_attribute brcmstb_attr_list[] = {
	__ATTR(unaligned_fp_count, 0444, show_unaligned_fp_count, NULL),
	__ATTR(rdhwr_count, 0444, show_rdhwr_count, NULL),
	__ATTR(chip_id, 0444, show_chip_id, NULL),
	__ATTR(chip_rev, 0444, show_chip_rev, NULL),
	__ATTR(ocap_partition, 0444, show_ocap_partition, NULL),
	__ATTR(cfe_boardname, 0444, show_cfe_boardname, NULL),
	#if defined(CONFIG_MIPS)
	__ATTR(cache_max_writeback, 0444, show_cache_max_writeback, NULL),
	__ATTR(cache_max_writethrough, 0444, show_cache_max_writethrough, NULL),
	__ATTR(cache_prefetch_enabled, 0444, show_cache_prefetch_enabled, NULL),
	__ATTR(cpu_name, 0444, show_cpu_name, NULL),
	__ATTR(cp0_config_regs, 0444, show_cp0_config_regs, NULL),
	__ATTR(cpu_khz, 0444, show_cpu_khz, NULL),
	#endif
	#if defined(CONFIG_CPU_BMIPS3300)
	__ATTR(cp0_brcm_regs, 0444, show_cp0_brcm_regs, NULL),
	__ATTR(bmips3300_core_regs, 0444, show_bmips3300_core_regs, NULL),
	#elif defined(CONFIG_CPU_BMIPS4380)
	__ATTR(cp0_brcm_regs, 0444, show_cp0_brcm_regs, NULL),
	__ATTR(bmips4380_core_regs, 0444, show_bmips4380_core_regs, NULL),
	#elif defined(CONFIG_CPU_BMIPS5000)
	__ATTR(cp0_brcm_regs, 0444, show_cp0_brcm_regs, NULL),
	#endif
	#if defined(CONFIG_BRCM_ZSCM_L2)
	__ATTR(zscm_regs, 0444, show_zscm_regs, NULL),
	#endif
	#if defined(CONFIG_BRCM_CPU_DIV)
	__ATTR(cpu_div, 0644, brcm_pm_show_cpu_div, brcm_pm_store_cpu_div),
	#endif
	#if defined(CONFIG_BRCM_CPU_PLL)
	__ATTR(cpu_pll, 0644, brcm_pm_show_cpu_pll, brcm_pm_store_cpu_pll),
	#endif
	__ATTR(sata_power, 0644, brcm_pm_show_sata_power,
	brcm_pm_store_sata_power),
	__ATTR(ddr_timeout, 0644, brcm_pm_show_ddr_timeout,
	brcm_pm_store_ddr_timeout),
	__ATTR(standby_flags, 0644, brcm_pm_show_standby_flags,
	brcm_pm_store_standby_flags),
	__ATTR(standby_timeout, 0644, brcm_pm_show_standby_timeout,
	brcm_pm_store_standby_timeout),
	__ATTR(time_at_wakeup, 0444, brcm_pm_show_time_at_wakeup, NULL),
	#if defined(CONFIG_BRCM_HAS_1GB_MEMC1)
	__ATTR(memc1_power, 0644, brcm_pm_show_memc1_power,
	brcm_pm_store_memc1_power),
	#endif
	__ATTR(halt_mode, 0644, brcm_pm_show_halt_mode,
	brcm_pm_store_halt_mode),
	__ATTR_NULL,
	};

	static int __init brcm_pdev_init(void)
	{
	struct device *dev;
	int i;
	struct device_attribute *attr;

	brcmstb_pdev = platform_device_alloc("brcmstb", -1);
	if (brcmstb_pdev == NULL) {
	printk(KERN_WARNING "%s: can't allocate device\n",
	__func__);
	return -ENODEV;
	}
	platform_device_add(brcmstb_pdev);
	dev = &brcmstb_pdev->dev;

	for (attr = brcmstb_attr_list; attr->attr.name != NULL; attr++)
	if (device_create_file(dev, attr) != 0)
	WARN(1, "Can't create sysfs file\n");

	/* create an attribute for each bmem region */
	for (i = 0; ; i++) {
	unsigned long addr, size;
	struct device_attribute *attr;
	char *name;

	if (bmem_region_info(i, &addr, &size) < 0)
	break;
	attr = kzalloc(sizeof(*attr), GFP_KERNEL);
	if (attr == NULL)
	break;

	name = kzalloc(16, GFP_KERNEL);
	if (name == NULL)
	break;
	snprintf(name, 16, "bmem.%d", i);

	sysfs_attr_init(&attr->attr);
	attr->attr.name = name;
	attr->attr.mode = 0444;
	attr->show = show_bmem;

	if (device_create_file(dev, attr) != 0)
	WARN(1, "Can't create sysfs file\n");
	}

	return 0;
	}

	arch_initcall(brcm_pdev_init);