summaryrefslogtreecommitdiff
path: root/target/linux/brcm63xx/patches-3.14/417-MTD-bcm63xxpart-allow-passing-a-caldata-offset.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/brcm63xx/patches-3.14/417-MTD-bcm63xxpart-allow-passing-a-caldata-offset.patch')
-rw-r--r--target/linux/brcm63xx/patches-3.14/417-MTD-bcm63xxpart-allow-passing-a-caldata-offset.patch120
1 files changed, 0 insertions, 120 deletions
diff --git a/target/linux/brcm63xx/patches-3.14/417-MTD-bcm63xxpart-allow-passing-a-caldata-offset.patch b/target/linux/brcm63xx/patches-3.14/417-MTD-bcm63xxpart-allow-passing-a-caldata-offset.patch
deleted file mode 100644
index 3b02c07..0000000
--- a/target/linux/brcm63xx/patches-3.14/417-MTD-bcm63xxpart-allow-passing-a-caldata-offset.patch
+++ /dev/null
@@ -1,120 +0,0 @@
-Allow bcm63xxpart to receive a caldata offset if calibration data is
-contained in flash.
----
- drivers/mtd/bcm63xxpart.c | 51 ++++++++++++++++++++++++++++++++++++---
- include/linux/mtd/partitions.h | 2 +
- 2 files changed, 49 insertions(+), 4 deletions(-)
-
---- a/drivers/mtd/bcm63xxpart.c
-+++ b/drivers/mtd/bcm63xxpart.c
-@@ -53,10 +53,12 @@ static int bcm63xx_parse_cfe_partitions(
- struct mtd_partition *parts;
- int ret;
- size_t retlen;
-- unsigned int rootfsaddr, kerneladdr, spareaddr;
-+ unsigned int rootfsaddr, kerneladdr, spareaddr, nvramaddr;
- 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;
-@@ -70,6 +72,24 @@ static int bcm63xx_parse_cfe_partitions(
- cfelen = cfe_erasesize;
- nvramlen = bcm63xx_nvram_get_psi_size() * SZ_1K;
- nvramlen = roundup(nvramlen, cfe_erasesize);
-+ nvramaddr = master->size - nvramlen;
-+
-+ 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));
-@@ -121,7 +141,7 @@ static int bcm63xx_parse_cfe_partitions(
- rootfsaddr = 0;
- spareaddr = cfelen;
- }
-- sparelen = master->size - spareaddr - nvramlen;
-+ sparelen = min_not_zero(nvramaddr, caldataaddr1) - spareaddr;
-
- /* Determine number of partitions */
- if (rootfslen > 0)
-@@ -130,6 +150,12 @@ 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) {
-@@ -167,15 +193,32 @@ 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].offset = nvramaddr;
- parts[curpart].size = nvramlen;
- curpart++;
-
- /* 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 = min_not_zero(nvramaddr, caldataaddr1) - cfelen;
-
- 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
-@@ -56,10 +56,12 @@ 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;
- };
-