[brcm63xx] add preliminary support for 3.6 kernel

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33936 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 118 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-3.6/436-MTD-bcm63xxpart-allow-passing-a-caldata-offset.patch b/target/linux/brcm63xx/patches-3.6/436-MTD-bcm63xxpart-allow-passing-a-caldata-offset.patch
new file mode 100644
index 0000000000..681bab2488
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.6/436-MTD-bcm63xxpart-allow-passing-a-caldata-offset.patch
@@ -0,0 +1,118 @@
+From 8ab86c5dc38ad4de1442e50e0adbc354d9184d71 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jonas.gorski@gmail.com>
+Date: Tue, 1 May 2012 14:38:41 +0200
+Subject: [PATCH 68/79] MTD: bcm63xxpart: allow passing a caldata offset
+
+Allow bcm63xxpart to receive a caldata offset if calibration data is
+contained in flash.
+---
+ drivers/mtd/bcm63xxpart.c      |   47 ++++++++++++++++++++++++++++++++++++++--
+ include/linux/mtd/partitions.h |    2 ++
+ 2 files changed, 47 insertions(+), 2 deletions(-)
+
+--- a/drivers/mtd/bcm63xxpart.c
++++ b/drivers/mtd/bcm63xxpart.c
+@@ -80,6 +80,8 @@ static int bcm63xx_parse_cfe_partitions(
+ 	unsigned int rootfslen, kernellen, sparelen, totallen;
+ 	unsigned int cfelen, nvramlen;
+ 	unsigned int cfe_erasesize;
++	unsigned int caldatalen1 = 0, caldataaddr1 = 0;
++	unsigned int caldatalen2 = 0, caldataaddr2 = 0;
+ 	int i;
+ 	u32 computed_crc;
+ 	bool rootfs_first = false;
+@@ -94,6 +96,23 @@ static int bcm63xx_parse_cfe_partitions(
+ 	nvramlen = bcm63xx_nvram_get_psi_size() * 1024;
+ 	nvramlen = roundup(nvramlen, cfe_erasesize);
+ 
++	if (data) {
++		if (data->caldata[0]) {
++			caldatalen1 = cfe_erasesize;
++			caldataaddr1 = rounddown(data->caldata[0],
++						 cfe_erasesize);
++		}
++		if (data->caldata[1]) {
++			caldatalen2 = cfe_erasesize;
++			caldataaddr2 = rounddown(data->caldata[1],
++						 cfe_erasesize);
++		}
++		if (caldataaddr1 == caldataaddr2) {
++			caldataaddr2 = 0;
++			caldatalen2 = 0;
++		}
++	}
++
+ 	/* Allocate memory for buffer */
+ 	buf = vmalloc(sizeof(struct bcm_tag));
+ 	if (!buf)
+@@ -144,7 +163,7 @@ static int bcm63xx_parse_cfe_partitions(
+ 		rootfsaddr = 0;
+ 		spareaddr = cfelen;
+ 	}
+-	sparelen = master->size - spareaddr - nvramlen;
++	sparelen = master->size - spareaddr - nvramlen - caldatalen1 - caldatalen2;
+ 
+ 	/* Determine number of partitions */
+ 	if (rootfslen > 0)
+@@ -153,6 +172,12 @@ static int bcm63xx_parse_cfe_partitions(
+ 	if (kernellen > 0)
+ 		nrparts++;
+ 
++	if (caldatalen1 > 0)
++		nrparts++;
++
++	if (caldatalen2 > 0)
++		nrparts++;
++
+ 	/* Ask kernel for more memory */
+ 	parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL);
+ 	if (!parts) {
+@@ -190,6 +215,23 @@ static int bcm63xx_parse_cfe_partitions(
+ 		curpart++;
+ 	}
+ 
++	if (caldatalen1 > 0) {
++		if (caldatalen2 > 0)
++			parts[curpart].name = "cal_data1";
++		else
++			parts[curpart].name = "cal_data";
++		parts[curpart].offset = caldataaddr1;
++		parts[curpart].size = caldatalen1;
++		curpart++;
++	}
++
++	if (caldatalen2 > 0) {
++		parts[curpart].name = "cal_data2";
++		parts[curpart].offset = caldataaddr2;
++		parts[curpart].size = caldatalen2;
++		curpart++;
++	}
++
+ 	parts[curpart].name = "nvram";
+ 	parts[curpart].offset = master->size - nvramlen;
+ 	parts[curpart].size = nvramlen;
+@@ -198,7 +240,8 @@ static int bcm63xx_parse_cfe_partitions(
+ 	/* Global partition "linux" to make easy firmware upgrade */
+ 	parts[curpart].name = "linux";
+ 	parts[curpart].offset = cfelen;
+-	parts[curpart].size = master->size - cfelen - nvramlen;
++	parts[curpart].size = master->size - cfelen - nvramlen
++			      - caldatalen1 - caldatalen2;
+ 
+ 	for (i = 0; i < nrparts; i++)
+ 		pr_info("Partition %d is %s offset %llx and length %llx\n", i,
+--- a/include/linux/mtd/partitions.h
++++ b/include/linux/mtd/partitions.h
+@@ -58,10 +58,12 @@ struct device_node;
+ /**
+  * struct mtd_part_parser_data - used to pass data to MTD partition parsers.
+  * @origin: for RedBoot, start address of MTD device
++ * @caldata: for CFE, start address of wifi calibration data
+  * @of_node: for OF parsers, device node containing partitioning information
+  */
+ struct mtd_part_parser_data {
+ 	unsigned long origin;
++	unsigned long caldata[2];
+ 	struct device_node *of_node;
+ };
+