aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/brcm47xx/patches-3.6/060-ssb-add-serial-flash-driver.patch
blob: 8b218f3070e38b0359d05ce8a1ce0ec3aaca8430 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
# DO NOT EDIT. This file is generated from Config.src
#
# For a description of the syntax of this configuration file,
# see scripts/kbuild/config-language.txt.
#

menu "Finding Utilities"

config BUSYBOX_CONFIG_FIND
	bool "find"
	default BUSYBOX_DEFAULT_FIND
	help
	  find is used to search your system to find specified files.

config BUSYBOX_CONFIG_FEATURE_FIND_PRINT0
	bool "Enable -print0: NUL-terminated output"
	default BUSYBOX_DEFAULT_FEATURE_FIND_PRINT0
	depends on BUSYBOX_CONFIG_FIND
	help
	  Causes output names to be separated by a NUL character
	  rather than a newline. This allows names that contain
	  newlines and other whitespace to be more easily
	  interpreted by other programs.

config BUSYBOX_CONFIG_FEATURE_FIND_MTIME
	bool "Enable -mtime: modified time matching"
	default BUSYBOX_DEFAULT_FEATURE_FIND_MTIME
	depends on BUSYBOX_CONFIG_FIND
	help
	  Allow searching based on the modification time of
	  files, in days.

config BUSYBOX_CONFIG_FEATURE_FIND_MMIN
	bool "Enable -mmin: modified time matching by minutes"
	default BUSYBOX_DEFAULT_FEATURE_FIND_MMIN
	depends on BUSYBOX_CONFIG_FIND
	help
	  Allow searching based on the modification time of
	  files, in minutes.

config BUSYBOX_CONFIG_FEATURE_FIND_PERM
	bool "Enable -perm: permissions matching"
	default BUSYBOX_DEFAULT_FEATURE_FIND_PERM
	depends on BUSYBOX_CONFIG_FIND

config BUSYBOX_CONFIG_FEATURE_FIND_TYPE
	bool "Enable -type: file type matching (file/dir/link/...)"
	default BUSYBOX_DEFAULT_FEATURE_FIND_TYPE
	depends on BUSYBOX_CONFIG_FIND
	help
	  Enable searching based on file type (file,
	  directory, socket, device, etc.).

config BUSYBOX_CONFIG_FEATURE_FIND_XDEV
	bool "Enable -xdev: 'stay in filesystem'"
	default BUSYBOX_DEFAULT_FEATURE_FIND_XDEV
	depends on BUSYBOX_CONFIG_FIND

config BUSYBOX_CONFIG_FEATURE_FIND_MAXDEPTH
	bool "Enable -mindepth N and -maxdepth N"
	default BUSYBOX_DEFAULT_FEATURE_FIND_MAXDEPTH
	depends on BUSYBOX_CONFIG_FIND

config BUSYBOX_CONFIG_FEATURE_FIND_NEWER
	bool "Enable -newer: compare file modification times"
	default BUSYBOX_DEFAULT_FEATURE_FIND_NEWER
	depends on BUSYBOX_CONFIG_FIND
	help
	  Support the 'find -newer' option for finding any files which have
	  modification time that is more recent than the specified FILE.

config BUSYBOX_CONFIG_FEATURE_FIND_INUM
	bool "Enable -inum: inode number matching"
	default BUSYBOX_DEFAULT_FEATURE_FIND_INUM
	depends on BUSYBOX_CONFIG_FIND

config BUSYBOX_CONFIG_FEATURE_FIND_EXEC
	bool 
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -143,6 +143,11 @@ config SSB_EMBEDDED
 	depends on SSB_DRIVER_MIPS
 	default y
 
+config SSB_SFLASH
+	bool
+	depends on SSB_DRIVER_MIPS
+	default y
+
 config SSB_DRIVER_EXTIF
 	bool "SSB Broadcom EXTIF core driver"
 	depends on SSB_DRIVER_MIPS
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -11,6 +11,7 @@ ssb-$(CONFIG_SSB_SDIOHOST)		+= sdio.o
 # built-in drivers
 ssb-y					+= driver_chipcommon.o
 ssb-y					+= driver_chipcommon_pmu.o
+ssb-$(CONFIG_SSB_SFLASH)		+= driver_chipcommon_sflash.o
 ssb-$(CONFIG_SSB_DRIVER_MIPS)		+= driver_mipscore.o
 ssb-$(CONFIG_SSB_DRIVER_EXTIF)		+= driver_extif.o
 ssb-$(CONFIG_SSB_DRIVER_PCICORE)	+= driver_pcicore.o
--- /dev/null
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -0,0 +1,395 @@
+/*
+ * Broadcom specific AMBA
+ * ChipCommon serial flash interface
+ * Copyright 2011, Jonas Gorski <jonas.gorski@gmail.com>
+ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
+ * Copyright 2010, Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_driver_chipcommon.h>
+
+#include "ssb_private.h"
+
+#define NUM_RETRIES	3
+
+static struct resource ssb_sflash_resource = {
+	.name	= "ssb_sflash",
+	.start	= SSB_FLASH2,
+	.end	= 0,
+	.flags  = IORESOURCE_MEM | IORESOURCE_READONLY,
+};
+
+struct platform_device ssb_sflash_dev = {
+	.name		= "bcm47xx-sflash",
+	.resource	= &ssb_sflash_resource,
+	.num_resources	= 1,
+};
+
+struct ssb_sflash_tbl_e {
+	char *name;
+	u32 id;
+	u32 blocksize;
+	u16 numblocks;
+};
+
+static const struct ssb_sflash_tbl_e ssb_sflash_st_tbl[] = {
+	{ "M25P20", 0x11, 0x10000, 4, },
+	{ "M25P40", 0x12, 0x10000, 8, },
+
+	{ "M25P16", 0x14, 0x10000, 32, },
+	{ "M25P32", 0x14, 0x10000, 64, },
+	{ "M25P64", 0x16, 0x10000, 128, },
+	{ "M25FL128", 0x17, 0x10000, 256, },
+	{ 0 },
+};
+
+static const struct ssb_sflash_tbl_e ssb_sflash_sst_tbl[] = {
+	{ "SST25WF512", 1, 0x1000, 16, },
+	{ "SST25VF512", 0x48, 0x1000, 16, },
+	{ "SST25WF010", 2, 0x1000, 32, },
+	{ "SST25VF010", 0x49, 0x1000, 32, },
+	{ "SST25WF020", 3, 0x1000, 64, },
+	{ "SST25VF020", 0x43, 0x1000, 64, },
+	{ "SST25WF040", 4, 0x1000, 128, },
+	{ "SST25VF040", 0x44, 0x1000, 128, },
+	{ "SST25VF040B", 0x8d, 0x1000, 128, },
+	{ "SST25WF080", 5, 0x1000, 256, },
+	{ "SST25VF080B", 0x8e, 0x1000, 256, },
+	{ "SST25VF016", 0x41, 0x1000, 512, },
+	{ "SST25VF032", 0x4a, 0x1000, 1024, },
+	{ "SST25VF064", 0x4b, 0x1000, 2048, },
+	{ 0 },
+};
+
+static const struct ssb_sflash_tbl_e ssb_sflash_at_tbl[] = {
+	{ "AT45DB011", 0xc, 256, 512, },
+	{ "AT45DB021", 0x14, 256, 1024, },
+	{ "AT45DB041", 0x1c, 256, 2048, },
+	{ "AT45DB081", 0x24, 256, 4096, },
+	{ "AT45DB161", 0x2c, 512, 4096, },
+	{ "AT45DB321", 0x34, 512, 8192, },
+	{ "AT45DB642", 0x3c, 1024, 8192, },
+	{ 0 },
+};
+
+static void ssb_sflash_cmd(struct ssb_chipcommon *chipco, u32 opcode)
+{
+	int i;
+	chipco_write32(chipco, SSB_CHIPCO_FLASHCTL,
+			SSB_CHIPCO_FLASHCTL_START | opcode);
+	for (i = 0; i < 1000; i++) {
+		if (!(chipco_read32(chipco, SSB_CHIPCO_FLASHCTL) &
+		      SSB_CHIPCO_FLASHCTL_BUSY))
+			return;
+		cpu_relax();
+	}
+	pr_err("SFLASH control command failed (timeout)!\n");
+}
+
+static void ssb_sflash_write_u8(struct ssb_chipcommon *chipco, u32 offset, u8 byte)
+{
+	chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, offset);
+	chipco_write32(chipco, SSB_CHIPCO_FLASHDATA, byte);
+}
+
+/* Read len bytes starting at offset into buf. Returns number of bytes read. */
+static int ssb_sflash_read(struct bcm47xx_sflash *dev, u32 offset, u32 len, u8 *buf)
+{
+	u8 *from, *to;
+	u32 cnt, i;
+	struct ssb_chipcommon *chipco = dev->scc;
+
+	if (!len)
+		return 0;
+
+	if ((offset + len) > chipco->sflash.size)
+		return -EINVAL;
+
+	if ((len >= 4) && (offset & 3))
+		cnt = 4 - (offset & 3);
+	else if ((len >= 4) && ((u32)buf & 3))
+		cnt = 4 - ((u32)buf & 3);
+	else
+		cnt = len;
+
+	from = (u8 *)KSEG0ADDR(SSB_FLASH2 + offset);
+
+	to = (u8 *)buf;
+
+	if (cnt < 4) {
+		for (i = 0; i < cnt; i++) {
+			*to = readb(from);
+			from++;
+			to++;
+		}
+		return cnt;
+	}
+
+	while (cnt >= 4) {
+		*(u32 *)to = readl(from);
+		from += 4;
+		to += 4;
+		cnt -= 4;
+	}
+
+	return len - cnt;
+}
+
+/* Poll for command completion. Returns zero when complete. */
+static int ssb_sflash_poll(struct bcm47xx_sflash *dev, u32 offset)
+{
+	struct ssb_chipcommon *chipco = dev->scc;
+
+	if (offset >= chipco->sflash.size)
+		return -22;
+
+	switch (chipco->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+	case SSB_CHIPCO_FLASHT_STSER:
+		/* Check for ST Write In Progress bit */
+		ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_RDSR);
+		return chipco_read32(chipco, SSB_CHIPCO_FLASHDATA)
+				& SSB_CHIPCO_FLASHDATA_ST_WIP;
+	case SSB_CHIPCO_FLASHT_ATSER:
+		/* Check for Atmel Ready bit */
+		ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_STATUS);
+		return !(chipco_read32(chipco, SSB_CHIPCO_FLASHDATA)
+				& SSB_CHIPCO_FLASHDATA_AT_READY);
+	}
+
+	return 0;
+}
+
+
+static int sflash_st_write(struct bcm47xx_sflash *dev, u32 offset, u32 len,
+			   const u8 *buf)
+{
+	int written = 1;
+	struct ssb_chipcommon *chipco = dev->scc;
+
+	/* Enable writes */
+	ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_WREN);
+	ssb_sflash_write_u8(chipco, offset, *buf++);
+	/* Issue a page program with CSA bit set */
+	ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_CSA | SSB_CHIPCO_FLASHCTL_ST_PP);
+	offset++;
+	len--;
+	while (len > 0) {
+		if ((offset & 255) == 0) {
+			/* Page boundary, poll droping cs and return */
+			chipco_write32(chipco, SSB_CHIPCO_FLASHCTL, 0);
+			udelay(1);
+			if (!ssb_sflash_poll(dev, offset)) {
+				/* Flash rejected command */
+				return -EAGAIN;
+			}
+			return written;
+		} else {
+			/* Write single byte */
+			ssb_sflash_cmd(chipco,
+					SSB_CHIPCO_FLASHCTL_ST_CSA |
+					*buf++);
+		}
+		written++;
+		offset++;
+		len--;
+	}
+	/* All done, drop cs & poll */
+	chipco_write32(chipco, SSB_CHIPCO_FLASHCTL, 0);
+	udelay(1);
+	if (!ssb_sflash_poll(dev, offset)) {
+		/* Flash rejected command */
+		return -EAGAIN;
+	}
+	return written;
+}
+
+static int sflash_at_write(struct bcm47xx_sflash *dev, u32 offset, u32 len,
+			   const u8 *buf)
+{
+	struct ssb_chipcommon *chipco = dev->scc;
+	u32 page, byte, mask;
+	int ret = 0;
+
+	mask = dev->blocksize - 1;
+	page = (offset & ~mask) << 1;
+	byte = offset & mask;
+	/* Read main memory page into buffer 1 */
+	if (byte || (len < dev->blocksize)) {
+		int i = 100;
+		chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, page);
+		ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_BUF1_LOAD);
+		/* 250 us for AT45DB321B */
+		while (i > 0 && ssb_sflash_poll(dev, offset)) {
+			udelay(10);
+			i--;
+		}
+		BUG_ON(!ssb_sflash_poll(dev, offset));
+	}
+	/* Write into buffer 1 */
+	for (ret = 0; (ret < (int)len) && (byte < dev->blocksize); ret++) {
+		ssb_sflash_write_u8(chipco, byte++, *buf++);
+		ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_BUF1_WRITE);
+	}
+	/* Write buffer 1 into main memory page */
+	chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, page);
+	ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_BUF1_PROGRAM);
+
+	return ret;
+}
+
+/* Write len bytes starting at offset into buf. Returns number of bytes
+ * written. Caller should poll for completion.
+ */
+static int ssb_sflash_write(struct bcm47xx_sflash *dev, u32 offset, u32 len,
+		      const u8 *buf)
+{
+	int ret = 0, tries = NUM_RETRIES;
+	struct ssb_chipcommon *chipco = dev->scc;
+
+	if (!len)
+		return 0;
+
+	if ((offset + len) > chipco->sflash.size)
+		return -EINVAL;
+
+	switch (chipco->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+	case SSB_CHIPCO_FLASHT_STSER:
+		do {
+			ret = sflash_st_write(dev, offset, len, buf);
+			tries--;
+		} while (ret == -EAGAIN && tries > 0);
+
+		if (ret == -EAGAIN && tries == 0) {
+			pr_info("ST Flash rejected write\n");
+			ret = -EIO;
+		}
+		break;
+	case SSB_CHIPCO_FLASHT_ATSER:
+		ret = sflash_at_write(dev, offset, len, buf);
+		break;
+	}
+
+	return ret;
+}
+
+/* Erase a region. Returns number of bytes scheduled for erasure.
+ * Caller should poll for completion.
+ */
+static int ssb_sflash_erase(struct bcm47xx_sflash *dev, u32 offset)
+{
+	struct ssb_chipcommon *chipco = dev->scc;
+
+	if (offset >= chipco->sflash.size)
+		return -EINVAL;
+
+	switch (chipco->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+	case SSB_CHIPCO_FLASHT_STSER:
+		ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_WREN);
+		chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, offset);
+		/* Newer flashes have "sub-sectors" which can be erased independently
+		 * with a new command: ST_SSE. The ST_SE command erases 64KB just as
+		 * before.
+		 */
+		if (dev->blocksize < (64 * 1024))
+			ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_SSE);
+		else
+			ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_SE);
+		return dev->blocksize;
+	case SSB_CHIPCO_FLASHT_ATSER:
+		chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, offset << 1);
+		ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_PAGE_ERASE);
+		return dev->blocksize;
+	}
+
+	return 0;
+}
+
+/* Initialize serial flash achipcoess */
+int ssb_sflash_init(struct ssb_chipcommon *chipco)
+{
+	struct bcm47xx_sflash *sflash = &chipco->sflash;
+	const struct ssb_sflash_tbl_e *e;
+	u32 id, id2;
+
+	switch (chipco->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+	case SSB_CHIPCO_FLASHT_STSER:
+		ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_DP);
+
+		chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, 0);
+		ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_RES);
+		id = chipco_read32(chipco, SSB_CHIPCO_FLASHDATA);
+
+		chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, 1);
+		ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_RES);
+		id2 = chipco_read32(chipco, SSB_CHIPCO_FLASHDATA);
+
+		switch (id) {
+		case 0xbf:
+			for (e = ssb_sflash_sst_tbl; e->name; e++) {
+				if (e->id == id2)
+					break;
+			}
+			break;
+		case 0x13:
+			return -ENOTSUPP;
+		default:
+			for (e = ssb_sflash_st_tbl; e->name; e++) {
+				if (e->id == id)
+					break;
+			}
+			break;
+		}
+		if (!e->name) {
+			pr_err("Unsupported ST serial flash (id: 0x%X, id2: 0x%X)\n", id, id2);
+			return -ENOTSUPP;
+		}
+
+		break;
+	case SSB_CHIPCO_FLASHT_ATSER:
+		ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_STATUS);
+		id = chipco_read32(chipco, SSB_CHIPCO_FLASHDATA) & 0x3c;
+
+		for (e = ssb_sflash_at_tbl; e->name; e++) {
+			if (e->id == id)
+				break;
+		}
+		if (!e->name) {
+			pr_err("Unsupported Atmel serial flash (id: 0x%X)\n", id);
+			return -ENOTSUPP;
+		}
+
+		break;
+	default:
+		pr_err("Unsupported flash type\n");
+		return -ENOTSUPP;
+	}
+
+	sflash->window = SSB_FLASH2;
+	sflash->blocksize = e->blocksize;
+	sflash->numblocks = e->numblocks;
+	sflash->size = sflash->blocksize * sflash->numblocks;
+	sflash->present = true;
+	sflash->read = ssb_sflash_read;
+	sflash->poll = ssb_sflash_poll;
+	sflash->write = ssb_sflash_write;
+	sflash->erase = ssb_sflash_erase;
+	sflash->type = BCM47XX_SFLASH_SSB;
+	sflash->scc = chipco;
+
+	pr_info("Found %s serial flash (size: %dKiB, blocksize: 0x%X, blocks: %d)\n",
+		  e->name, sflash->size / 1024, sflash->blocksize,
+		  sflash->numblocks);
+
+	/* Prepare platform device, but don't register it yet. It's too early,
+	 * malloc (required by device_private_init) is not available yet. */
+	ssb_sflash_dev.resource[0].end = ssb_sflash_dev.resource[0].start +
+					  sflash->size;
+	ssb_sflash_dev.dev.platform_data = sflash;
+
+	return 0;
+}
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -203,7 +203,8 @@ static void ssb_mips_flash_detect(struct
 	switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
 	case SSB_CHIPCO_FLASHT_STSER:
 	case SSB_CHIPCO_FLASHT_ATSER:
-		pr_err("Serial flash not supported\n");
+		pr_debug("Found serial flash\n");
+		ssb_sflash_init(&bus->chipco);
 		break;
 	case SSB_CHIPCO_FLASHT_PARA:
 		pr_debug("Found parallel flash\n");
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -19,6 +19,7 @@
 #include <linux/ssb/ssb_driver_gige.h>
 #include <linux/dma-mapping.h>
 #include <linux/pci.h>
+#include <linux/platform_device.h>
 #include <linux/mmc/sdio_func.h>
 #include <linux/slab.h>
 
@@ -540,6 +541,15 @@ static int ssb_devices_register(struct s
 		dev_idx++;
 	}
 
+#ifdef CONFIG_SSB_SFLASH
+	if (bus->chipco.sflash.present) {
+		err = platform_device_register(&ssb_sflash_dev);
+		if (err)
+			ssb_printk(KERN_ERR PFX
+				   "Error registering serial flash\n");
+	}
+#endif
+
 	return 0;
 error:
 	/* Unwind the already registered devices. */
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -242,4 +242,16 @@ static inline int ssb_watchdog_register(
 }
 #endif /* CONFIG_SSB_EMBEDDED */
 
+#ifdef CONFIG_SSB_SFLASH
+/* driver_chipcommon_sflash.c */
+int ssb_sflash_init(struct ssb_chipcommon *chipco);
+extern struct platform_device ssb_sflash_dev;
+#else
+static inline int ssb_sflash_init(struct ssb_chipcommon *chipco)
+{
+	pr_err("Serial flash not supported\n");
+	return 0;
+}
+#endif /* CONFIG_SSB_SFLASH */
+
 #endif /* LINUX_SSB_PRIVATE_H_ */
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -13,6 +13,8 @@
  * Licensed under the GPL version 2. See COPYING for details.
  */
 
+#include <linux/mtd/bcm47xx_sflash.h>
+
 /** ChipCommon core registers. **/
 
 #define SSB_CHIPCO_CHIPID		0x0000
@@ -121,6 +123,17 @@
 #define  SSB_CHIPCO_FLASHCTL_BUSY	SSB_CHIPCO_FLASHCTL_START
 #define SSB_CHIPCO_FLASHADDR		0x0044
 #define SSB_CHIPCO_FLASHDATA		0x0048
+/* Status register bits for ST flashes */
+#define  SSB_CHIPCO_FLASHDATA_ST_WIP	0x01		/* Write In Progress */
+#define  SSB_CHIPCO_FLASHDATA_ST_WEL	0x02		/* Write Enable Latch */
+#define  SSB_CHIPCO_FLASHDATA_ST_BP_MASK	0x1c		/* Block Protect */
+#define  SSB_CHIPCO_FLASHDATA_ST_BP_SHIFT	2
+#define  SSB_CHIPCO_FLASHDATA_ST_SRWD	0x80		/* Status Register Write Disable */
+/* Status register bits for Atmel flashes */
+#define  SSB_CHIPCO_FLASHDATA_AT_READY	0x80
+#define  SSB_CHIPCO_FLASHDATA_AT_MISMATCH	0x40
+#define  SSB_CHIPCO_FLASHDATA_AT_ID_MASK	0x38
+#define  SSB_CHIPCO_FLASHDATA_AT_ID_SHIFT	3
 #define SSB_CHIPCO_BCAST_ADDR		0x0050
 #define SSB_CHIPCO_BCAST_DATA		0x0054
 #define SSB_CHIPCO_GPIOPULLUP		0x0058		/* Rev >= 20 only */
@@ -503,7 +516,7 @@
 #define SSB_CHIPCO_FLASHCTL_ST_PP	0x0302		/* Page Program */
 #define SSB_CHIPCO_FLASHCTL_ST_SE	0x02D8		/* Sector Erase */
 #define SSB_CHIPCO_FLASHCTL_ST_BE	0x00C7		/* Bulk Erase */
-#define SSB_CHIPCO_FLASHCTL_ST_DP	0x00B9		/* Deep Power-down */
+#define SSB_CHIPCO_FLASHCTL_ST_DP	0x00D9		/* Deep Power-down */
 #define SSB_CHIPCO_FLASHCTL_ST_RES	0x03AB		/* Read Electronic Signature */
 #define SSB_CHIPCO_FLASHCTL_ST_CSA	0x1000		/* Keep chip select asserted */
 #define SSB_CHIPCO_FLASHCTL_ST_SSE	0x0220		/* Sub-sector Erase */
@@ -593,6 +606,9 @@ struct ssb_chipcommon {
 	struct ssb_chipcommon_pmu pmu;
 	u32 ticks_per_ms;
 	u32 max_timer_ms;
+#ifdef CONFIG_SSB_SFLASH
+	struct bcm47xx_sflash sflash;
+#endif
 };
 
 static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)