brcm47xx: remove support for kernel 3.2

SVN-Revision: 31771

1 files changed, 0 insertions, 505 deletions

diff --git a/target/linux/brcm47xx/patches-3.2/021-bcma-add-serial-flash-support-to-bcma.patch b/target/linux/brcm47xx/patches-3.2/021-bcma-add-serial-flash-support-to-bcma.patch
deleted file mode 100644
index 2de4ba0f52..0000000000
--- a/target/linux/brcm47xx/patches-3.2/021-bcma-add-serial-flash-support-to-bcma.patch
+++ /dev/null
@@ -1,505 +0,0 @@
---- a/drivers/bcma/Kconfig
-+++ b/drivers/bcma/Kconfig
-@@ -38,6 +38,11 @@ config BCMA_HOST_SOC
- 	bool
- 	depends on BCMA_DRIVER_MIPS
- 
-+config BCMA_SFLASH
-+	bool
-+	depends on BCMA_DRIVER_MIPS
-+	default y
-+
- config BCMA_DRIVER_MIPS
- 	bool "BCMA Broadcom MIPS core driver"
- 	depends on BCMA && MIPS
---- a/drivers/bcma/Makefile
-+++ b/drivers/bcma/Makefile
-@@ -1,5 +1,6 @@
- bcma-y					+= main.o scan.o core.o sprom.o
- bcma-y					+= driver_chipcommon.o driver_chipcommon_pmu.o
-+bcma-$(CONFIG_BCMA_SFLASH)		+= driver_chipcommon_sflash.o
- bcma-y					+= driver_pci.o
- bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE)	+= driver_pci_host.o
- bcma-$(CONFIG_BCMA_DRIVER_MIPS)		+= driver_mips.o
---- a/drivers/bcma/bcma_private.h
-+++ b/drivers/bcma/bcma_private.h
-@@ -42,6 +42,11 @@ void bcma_chipco_serial_init(struct bcma
- u32 bcma_pmu_alp_clock(struct bcma_drv_cc *cc);
- u32 bcma_pmu_get_clockcpu(struct bcma_drv_cc *cc);
- 
-+#ifdef CONFIG_BCMA_SFLASH
-+/* driver_chipcommon_sflash.c */
-+int bcma_sflash_init(struct bcma_drv_cc *cc);
-+#endif /* CONFIG_BCMA_SFLASH */
-+
- #ifdef CONFIG_BCMA_HOST_PCI
- /* host_pci.c */
- extern int __init bcma_host_pci_init(void);
---- /dev/null
-+++ b/drivers/bcma/driver_chipcommon_sflash.c
-@@ -0,0 +1,398 @@
-+/*
-+ * Broadcom SiliconBackplane 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/bcma/bcma.h>
-+#include <linux/bcma/bcma_driver_chipcommon.h>
-+#include <linux/delay.h>
-+
-+#include "bcma_private.h"
-+
-+#define NUM_RETRIES	3
-+
-+
-+/* Issue a serial flash command */
-+static inline void bcma_sflash_cmd(struct bcma_drv_cc *cc, u32 opcode)
-+{
-+	bcma_cc_write32(cc, BCMA_CC_FLASHCTL,
-+			BCMA_CC_FLASHCTL_START | opcode);
-+	while (bcma_cc_read32(cc, BCMA_CC_FLASHCTL) & BCMA_CC_FLASHCTL_BUSY)
-+		;
-+}
-+
-+
-+static inline 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);
-+}
-+
-+/* Initialize serial flash access */
-+int bcma_sflash_init(struct bcma_drv_cc *cc)
-+{
-+	u32 id, id2;
-+
-+	memset(&cc->sflash, 0, sizeof(struct bcma_sflash));
-+
-+	switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
-+	case BCMA_CC_FLASHT_STSER:
-+		/* Probe for ST chips */
-+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_DP);
-+		bcma_cc_write32(cc, BCMA_CC_FLASHADDR, 0);
-+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_RES);
-+		id = bcma_cc_read32(cc, BCMA_CC_FLASHDATA);
-+		cc->sflash.blocksize = 64 * 1024;
-+		switch (id) {
-+		case 0x11:
-+			/* ST M25P20 2 Mbit Serial Flash */
-+			cc->sflash.numblocks = 4;
-+			break;
-+		case 0x12:
-+			/* ST M25P40 4 Mbit Serial Flash */
-+			cc->sflash.numblocks = 8;
-+			break;
-+		case 0x13:
-+			/* ST M25P80 8 Mbit Serial Flash */
-+			cc->sflash.numblocks = 16;
-+			break;
-+		case 0x14:
-+			/* ST M25P16 16 Mbit Serial Flash */
-+			cc->sflash.numblocks = 32;
-+			break;
-+		case 0x15:
-+			/* ST M25P32 32 Mbit Serial Flash */
-+			cc->sflash.numblocks = 64;
-+			break;
-+		case 0x16:
-+			/* ST M25P64 64 Mbit Serial Flash */
-+			cc->sflash.numblocks = 128;
-+			break;
-+		case 0x17:
-+			/* ST M25FL128 128 Mbit Serial Flash */
-+			cc->sflash.numblocks = 256;
-+			break;
-+		case 0xbf:
-+			/* All of the following flashes are SST with
-+			 * 4KB subsectors. Others should be added but
-+			 * We'll have to revamp the way we identify them
-+			 * since RES is not eough to disambiguate them.
-+			 */
-+			cc->sflash.blocksize = 4 * 1024;
-+			bcma_cc_write32(cc, BCMA_CC_FLASHADDR, 1);
-+			bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_RES);
-+			id2 = bcma_cc_read32(cc, BCMA_CC_FLASHDATA);
-+			switch (id2) {
-+			case 1:
-+				/* SST25WF512 512 Kbit Serial Flash */
-+			case 0x48:
-+				/* SST25VF512 512 Kbit Serial Flash */
-+				cc->sflash.numblocks = 16;
-+				break;
-+			case 2:
-+				/* SST25WF010 1 Mbit Serial Flash */
-+			case 0x49:
-+				/* SST25VF010 1 Mbit Serial Flash */
-+				cc->sflash.numblocks = 32;
-+				break;
-+			case 3:
-+				/* SST25WF020 2 Mbit Serial Flash */
-+			case 0x43:
-+				/* SST25VF020 2 Mbit Serial Flash */
-+				cc->sflash.numblocks = 64;
-+				break;
-+			case 4:
-+				/* SST25WF040 4 Mbit Serial Flash */
-+			case 0x44:
-+				/* SST25VF040 4 Mbit Serial Flash */
-+			case 0x8d:
-+				/* SST25VF040B 4 Mbit Serial Flash */
-+				cc->sflash.numblocks = 128;
-+				break;
-+			case 5:
-+				/* SST25WF080 8 Mbit Serial Flash */
-+			case 0x8e:
-+				/* SST25VF080B 8 Mbit Serial Flash */
-+				cc->sflash.numblocks = 256;
-+				break;
-+			case 0x41:
-+				/* SST25VF016 16 Mbit Serial Flash */
-+				cc->sflash.numblocks = 512;
-+				break;
-+			case 0x4a:
-+				/* SST25VF032 32 Mbit Serial Flash */
-+				cc->sflash.numblocks = 1024;
-+				break;
-+			case 0x4b:
-+				/* SST25VF064 64 Mbit Serial Flash */
-+				cc->sflash.numblocks = 2048;
-+				break;
-+			}
-+			break;
-+		}
-+		break;
-+
-+	case BCMA_CC_FLASHT_ATSER:
-+		/* Probe for Atmel chips */
-+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_STATUS);
-+		id = bcma_cc_read32(cc, BCMA_CC_FLASHDATA) & 0x3c;
-+		switch (id) {
-+		case 0xc:
-+			/* Atmel AT45DB011 1Mbit Serial Flash */
-+			cc->sflash.blocksize = 256;
-+			cc->sflash.numblocks = 512;
-+			break;
-+		case 0x14:
-+			/* Atmel AT45DB021 2Mbit Serial Flash */
-+			cc->sflash.blocksize = 256;
-+			cc->sflash.numblocks = 1024;
-+			break;
-+		case 0x1c:
-+			/* Atmel AT45DB041 4Mbit Serial Flash */
-+			cc->sflash.blocksize = 256;
-+			cc->sflash.numblocks = 2048;
-+			break;
-+		case 0x24:
-+			/* Atmel AT45DB081 8Mbit Serial Flash */
-+			cc->sflash.blocksize = 256;
-+			cc->sflash.numblocks = 4096;
-+			break;
-+		case 0x2c:
-+			/* Atmel AT45DB161 16Mbit Serial Flash */
-+			cc->sflash.blocksize = 512;
-+			cc->sflash.numblocks = 4096;
-+			break;
-+		case 0x34:
-+			/* Atmel AT45DB321 32Mbit Serial Flash */
-+			cc->sflash.blocksize = 512;
-+			cc->sflash.numblocks = 8192;
-+			break;
-+		case 0x3c:
-+			/* Atmel AT45DB642 64Mbit Serial Flash */
-+			cc->sflash.blocksize = 1024;
-+			cc->sflash.numblocks = 8192;
-+			break;
-+		}
-+		break;
-+	}
-+
-+	cc->sflash.size = cc->sflash.blocksize * cc->sflash.numblocks;
-+
-+	return cc->sflash.size ? 0 : -ENODEV;
-+}
-+
-+/* Read len bytes starting at offset into buf. Returns number of bytes read. */
-+int bcma_sflash_read(struct bcma_drv_cc *cc, u32 offset, u32 len, u8 *buf)
-+{
-+	u8 *from, *to;
-+	u32 cnt, i;
-+
-+	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_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. */
-+int bcma_sflash_poll(struct bcma_drv_cc *cc, u32 offset)
-+{
-+	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 bcma_drv_cc *cc, u32 offset, u32 len,
-+			   const u8 *buf)
-+{
-+	int written = 1;
-+
-+	/* 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(cc, 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(cc, offset)) {
-+		/* Flash rejected command */
-+		return -EAGAIN;
-+	}
-+	return written;
-+}
-+
-+static int sflash_at_write(struct bcma_drv_cc *cc, u32 offset, u32 len,
-+			   const u8 *buf)
-+{
-+	struct bcma_sflash *sfl = &cc->sflash;
-+	u32 page, byte, mask;
-+	int ret = 0;
-+
-+	mask = sfl->blocksize - 1;
-+	page = (offset & ~mask) << 1;
-+	byte = offset & mask;
-+	/* Read main memory page into buffer 1 */
-+	if (byte || (len < sfl->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(cc, offset)) {
-+			udelay(10);
-+			i--;
-+		}
-+		BUG_ON(!bcma_sflash_poll(cc, offset));
-+	}
-+	/* Write into buffer 1 */
-+	for (ret = 0; (ret < (int)len) && (byte < sfl->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.
-+ */
-+int bcma_sflash_write(struct bcma_drv_cc *cc, u32 offset, u32 len,
-+		      const u8 *buf)
-+{
-+	struct bcma_sflash *sfl;
-+	int ret = 0, tries = NUM_RETRIES;
-+
-+	if (!len)
-+		return 0;
-+
-+	if ((offset + len) > cc->sflash.size)
-+		return -EINVAL;
-+
-+	sfl = &cc->sflash;
-+	switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
-+	case BCMA_CC_FLASHT_STSER:
-+		do {
-+			ret = sflash_st_write(cc, 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 BCMA_CC_FLASHT_ATSER:
-+		ret = sflash_at_write(cc, offset, len, buf);
-+		break;
-+	}
-+
-+	return ret;
-+}
-+
-+/* Erase a region. Returns number of bytes scheduled for erasure.
-+ * Caller should poll for completion.
-+ */
-+int bcma_sflash_erase(struct bcma_drv_cc *cc, u32 offset)
-+{
-+	struct bcma_sflash *sfl;
-+
-+	if (offset >= cc->sflash.size)
-+		return -EINVAL;
-+
-+	sfl = &cc->sflash;
-+	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 (sfl->blocksize < (64 * 1024))
-+			bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_SSE);
-+		else
-+			bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_SE);
-+		return sfl->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 sfl->blocksize;
-+	}
-+
-+	return 0;
-+}
---- a/drivers/bcma/driver_mips.c
-+++ b/drivers/bcma/driver_mips.c
-@@ -185,7 +185,13 @@ static void bcma_core_mips_flash_detect(
- 	switch (bus->drv_cc.capabilities & BCMA_CC_CAP_FLASHT) {
- 	case BCMA_CC_FLASHT_STSER:
- 	case BCMA_CC_FLASHT_ATSER:
--		pr_err("Serial flash not supported.\n");
-+#ifdef CONFIG_BCMA_SFLASH
-+		pr_info("found serial flash.\n");
-+		bus->drv_cc.flash_type = BCMA_SFLASH;
-+		bcma_sflash_init(&bus->drv_cc);
-+#else
-+		pr_info("serial flash not supported.\n");
-+#endif /* CONFIG_BCMA_SFLASH */
- 		break;
- 	case BCMA_CC_FLASHT_PARA:
- 		pr_info("found parallel flash.\n");
---- a/include/linux/bcma/bcma_driver_chipcommon.h
-+++ b/include/linux/bcma/bcma_driver_chipcommon.h
-@@ -399,6 +399,7 @@ struct bcma_chipcommon_pmu {
- #ifdef CONFIG_BCMA_DRIVER_MIPS
- enum bcma_flash_type {
- 	BCMA_PFLASH,
-+	BCMA_SFLASH,
- };
- 
- struct bcma_pflash {
-@@ -407,6 +408,14 @@ struct bcma_pflash {
- 	u32 window_size;
- };
- 
-+#ifdef CONFIG_BCMA_SFLASH
-+struct bcma_sflash {
-+	u32 blocksize;		/* Block size */
-+	u32 numblocks;		/* Number of blocks */
-+	u32 size;		/* Total size in bytes */
-+};
-+#endif /* CONFIG_BCMA_SFLASH */
-+
- struct bcma_serial_port {
- 	void *regs;
- 	unsigned long clockspeed;
-@@ -429,6 +438,9 @@ struct bcma_drv_cc {
- 	enum bcma_flash_type flash_type;
- 	union {
- 		struct bcma_pflash pflash;
-+#ifdef CONFIG_BCMA_SFLASH
-+		struct bcma_sflash sflash;
-+#endif /* CONFIG_BCMA_SFLASH */
- 	};
- 
- 	int nr_serial_ports;
-@@ -483,4 +495,14 @@ extern void bcma_chipco_chipctl_maskset(
- extern void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc,
- 				       u32 offset, u32 mask, u32 set);
- 
-+#ifdef CONFIG_BCMA_SFLASH
-+/* Chipcommon sflash support. */
-+int bcma_sflash_read(struct bcma_drv_cc *cc, u32 offset, u32 len,
-+			   u8 *buf);
-+int bcma_sflash_poll(struct bcma_drv_cc *cc, u32 offset);
-+int bcma_sflash_write(struct bcma_drv_cc *cc, u32 offset, u32 len,
-+			    const u8 *buf);
-+int bcma_sflash_erase(struct bcma_drv_cc *cc, u32 offset);
-+#endif /* CONFIG_BCMA_SFLASH */
-+
- #endif /* LINUX_BCMA_DRIVER_CC_H_ */