mirror of https://github.com/hak5/openwrt.git
119 lines
3.6 KiB
Diff
119 lines
3.6 KiB
Diff
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;
|
|
};
|
|
|