brcm47xx: remove support for kernel version 3.3

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34986 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 345 deletions

diff --git a/target/linux/brcm47xx/patches-3.3/070-bcma-add-functions-to-write-to-serial-flash.patch b/target/linux/brcm47xx/patches-3.3/070-bcma-add-functions-to-write-to-serial-flash.patch
deleted file mode 100644
index 5acc2cf27b..0000000000
--- a/target/linux/brcm47xx/patches-3.3/070-bcma-add-functions-to-write-to-serial-flash.patch
+++ /dev/null
@@ -1,345 +0,0 @@
---- a/drivers/bcma/driver_chipcommon_sflash.c
-+++ b/drivers/bcma/driver_chipcommon_sflash.c
-@@ -1,15 +1,22 @@
- /*
-  * 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/bcma/bcma.h>
-+#include <linux/bcma/bcma_driver_chipcommon.h>
- 
- #include "bcma_private.h"
- 
-+#define NUM_RETRIES	3
-+
- static struct resource bcma_sflash_resource = {
- 	.name	= "bcma_sflash",
- 	.start	= BCMA_SOC_FLASH2,
-@@ -18,7 +25,7 @@ static struct resource bcma_sflash_resou
- };
- 
- struct platform_device bcma_sflash_dev = {
--	.name		= "bcma_sflash",
-+	.name		= "bcm47xx-sflash",
- 	.resource	= &bcma_sflash_resource,
- 	.num_resources	= 1,
- };
-@@ -30,7 +37,7 @@ struct bcma_sflash_tbl_e {
- 	u16 numblocks;
- };
- 
--static struct bcma_sflash_tbl_e bcma_sflash_st_tbl[] = {
-+static const struct bcma_sflash_tbl_e bcma_sflash_st_tbl[] = {
- 	{ "M25P20", 0x11, 0x10000, 4, },
- 	{ "M25P40", 0x12, 0x10000, 8, },
- 
-@@ -41,7 +48,7 @@ static struct bcma_sflash_tbl_e bcma_sfl
- 	{ 0 },
- };
- 
--static struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = {
-+static const struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = {
- 	{ "SST25WF512", 1, 0x1000, 16, },
- 	{ "SST25VF512", 0x48, 0x1000, 16, },
- 	{ "SST25WF010", 2, 0x1000, 32, },
-@@ -59,7 +66,7 @@ static struct bcma_sflash_tbl_e bcma_sfl
- 	{ 0 },
- };
- 
--static struct bcma_sflash_tbl_e bcma_sflash_at_tbl[] = {
-+static const struct bcma_sflash_tbl_e bcma_sflash_at_tbl[] = {
- 	{ "AT45DB011", 0xc, 256, 512, },
- 	{ "AT45DB021", 0x14, 256, 1024, },
- 	{ "AT45DB041", 0x1c, 256, 2048, },
-@@ -84,12 +91,230 @@ static void bcma_sflash_cmd(struct bcma_
- 	bcma_err(cc->core->bus, "SFLASH control command failed (timeout)!\n");
- }
- 
-+static void bcma_sflash_write_u8(struct bcma_drv_cc *cc, u32 offset, u8 byte)
-+{
-+	bcma_cc_write32(cc, BCMA_CC_FLASHADDR, offset);
-+	bcma_cc_write32(cc, BCMA_CC_FLASHDATA, byte);
-+}
-+
-+/* Read len bytes starting at offset into buf. Returns number of bytes read. */
-+static int bcma_sflash_read(struct bcm47xx_sflash *dev, u32 offset, u32 len, u8 *buf)
-+{
-+	u8 *from, *to;
-+	u32 cnt, i;
-+	struct bcma_drv_cc *cc = dev->bcc;
-+
-+	if (!len)
-+		return 0;
-+
-+	if ((offset + len) > cc->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(BCMA_SOC_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 bcma_sflash_poll(struct bcm47xx_sflash *dev, u32 offset)
-+{
-+	struct bcma_drv_cc *cc = dev->bcc;
-+
-+	if (offset >= cc->sflash.size)
-+		return -22;
-+
-+	switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
-+	case BCMA_CC_FLASHT_STSER:
-+		/* Check for ST Write In Progress bit */
-+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_RDSR);
-+		return bcma_cc_read32(cc, BCMA_CC_FLASHDATA)
-+				& BCMA_CC_FLASHDATA_ST_WIP;
-+	case BCMA_CC_FLASHT_ATSER:
-+		/* Check for Atmel Ready bit */
-+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_STATUS);
-+		return !(bcma_cc_read32(cc, BCMA_CC_FLASHDATA)
-+				& BCMA_CC_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 bcma_drv_cc *cc = dev->bcc;
-+
-+	/* Enable writes */
-+	bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_WREN);
-+	bcma_sflash_write_u8(cc, offset, *buf++);
-+	/* Issue a page program with CSA bit set */
-+	bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_CSA | BCMA_CC_FLASHCTL_ST_PP);
-+	offset++;
-+	len--;
-+	while (len > 0) {
-+		if ((offset & 255) == 0) {
-+			/* Page boundary, poll droping cs and return */
-+			bcma_cc_write32(cc, BCMA_CC_FLASHCTL, 0);
-+			udelay(1);
-+			if (!bcma_sflash_poll(dev, offset)) {
-+				/* Flash rejected command */
-+				return -EAGAIN;
-+			}
-+			return written;
-+		} else {
-+			/* Write single byte */
-+			bcma_sflash_cmd(cc,
-+					BCMA_CC_FLASHCTL_ST_CSA |
-+					*buf++);
-+		}
-+		written++;
-+		offset++;
-+		len--;
-+	}
-+	/* All done, drop cs & poll */
-+	bcma_cc_write32(cc, BCMA_CC_FLASHCTL, 0);
-+	udelay(1);
-+	if (!bcma_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 bcma_drv_cc *cc = dev->bcc;
-+	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;
-+		bcma_cc_write32(cc, BCMA_CC_FLASHADDR, page);
-+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_BUF1_LOAD);
-+		/* 250 us for AT45DB321B */
-+		while (i > 0 && bcma_sflash_poll(dev, offset)) {
-+			udelay(10);
-+			i--;
-+		}
-+		BUG_ON(!bcma_sflash_poll(dev, offset));
-+	}
-+	/* Write into buffer 1 */
-+	for (ret = 0; (ret < (int)len) && (byte < dev->blocksize); ret++) {
-+		bcma_sflash_write_u8(cc, byte++, *buf++);
-+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_BUF1_WRITE);
-+	}
-+	/* Write buffer 1 into main memory page */
-+	bcma_cc_write32(cc, BCMA_CC_FLASHADDR, page);
-+	bcma_sflash_cmd(cc, BCMA_CC_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 bcma_sflash_write(struct bcm47xx_sflash *dev, u32 offset, u32 len,
-+		      const u8 *buf)
-+{
-+	int ret = 0, tries = NUM_RETRIES;
-+	struct bcma_drv_cc *cc = dev->bcc;
-+
-+	if (!len)
-+		return 0;
-+
-+	if ((offset + len) > cc->sflash.size)
-+		return -EINVAL;
-+
-+	switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
-+	case BCMA_CC_FLASHT_STSER:
-+		do {
-+			ret = sflash_st_write(dev, offset, len, buf);
-+			tries--;
-+		} while (ret == -EAGAIN && tries > 0);
-+
-+		if (ret == -EAGAIN && tries == 0) {
-+			bcma_info(cc->core->bus, "ST Flash rejected write\n");
-+			ret = -EIO;
-+		}
-+		break;
-+	case BCMA_CC_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 bcma_sflash_erase(struct bcm47xx_sflash *dev, u32 offset)
-+{
-+	struct bcma_drv_cc *cc = dev->bcc;
-+
-+	if (offset >= cc->sflash.size)
-+		return -EINVAL;
-+
-+	switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
-+	case BCMA_CC_FLASHT_STSER:
-+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_WREN);
-+		bcma_cc_write32(cc, BCMA_CC_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))
-+			bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_SSE);
-+		else
-+			bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_SE);
-+		return dev->blocksize;
-+	case BCMA_CC_FLASHT_ATSER:
-+		bcma_cc_write32(cc, BCMA_CC_FLASHADDR, offset << 1);
-+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_PAGE_ERASE);
-+		return dev->blocksize;
-+	}
-+
-+	return 0;
-+}
-+
- /* Initialize serial flash access */
- int bcma_sflash_init(struct bcma_drv_cc *cc)
- {
- 	struct bcma_bus *bus = cc->core->bus;
--	struct bcma_sflash *sflash = &cc->sflash;
--	struct bcma_sflash_tbl_e *e;
-+	struct bcm47xx_sflash *sflash = &cc->sflash;
-+	const struct bcma_sflash_tbl_e *e;
- 	u32 id, id2;
- 
- 	switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
-@@ -150,6 +375,12 @@ int bcma_sflash_init(struct bcma_drv_cc
- 	sflash->numblocks = e->numblocks;
- 	sflash->size = sflash->blocksize * sflash->numblocks;
- 	sflash->present = true;
-+	sflash->read = bcma_sflash_read;
-+	sflash->poll = bcma_sflash_poll;
-+	sflash->write = bcma_sflash_write;
-+	sflash->erase = bcma_sflash_erase;
-+	sflash->type = BCM47XX_SFLASH_BCMA;
-+	sflash->bcc = cc;
- 
- 	bcma_info(bus, "Found %s serial flash (size: %dKiB, blocksize: 0x%X, blocks: %d)\n",
- 		  e->name, sflash->size / 1024, sflash->blocksize,
---- a/include/linux/bcma/bcma_driver_chipcommon.h
-+++ b/include/linux/bcma/bcma_driver_chipcommon.h
-@@ -3,6 +3,8 @@
- 
- #include <linux/platform_device.h>
- 
-+#include <linux/mtd/bcm47xx_sflash.h>
-+
- /** ChipCommon core registers. **/
- #define BCMA_CC_ID			0x0000
- #define  BCMA_CC_ID_ID			0x0000FFFF
-@@ -518,17 +520,6 @@ struct bcma_pflash {
- 	u32 window_size;
- };
- 
--#ifdef CONFIG_BCMA_SFLASH
--struct bcma_sflash {
--	bool present;
--	u32 window;
--	u32 blocksize;
--	u16 numblocks;
--	u32 size;
--
--	struct mtd_info *mtd;
--};
--#endif
- 
- #ifdef CONFIG_BCMA_NFLASH
- struct mtd_info;
-@@ -563,7 +554,7 @@ struct bcma_drv_cc {
- #ifdef CONFIG_BCMA_DRIVER_MIPS
- 	struct bcma_pflash pflash;
- #ifdef CONFIG_BCMA_SFLASH
--	struct bcma_sflash sflash;
-+	struct bcm47xx_sflash sflash;
- #endif
- #ifdef CONFIG_BCMA_NFLASH
- 	struct bcma_nflash nflash;