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-rw-r--r--target/linux/bcm53xx/patches-4.1/112-bcm53xx-sprom-add-sprom-driver.patch69
1 files changed, 69 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-4.1/112-bcm53xx-sprom-add-sprom-driver.patch b/target/linux/bcm53xx/patches-4.1/112-bcm53xx-sprom-add-sprom-driver.patch
new file mode 100644
index 0000000000..b914fd995f
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.1/112-bcm53xx-sprom-add-sprom-driver.patch
@@ -0,0 +1,69 @@
+From 4e0ab3269a6d260a41a3673157753147f5f71341 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sun, 4 May 2014 13:19:20 +0200
+Subject: [PATCH 03/17] bcm47xx-sprom: add Broadcom sprom parser driver
+
+This driver needs an nvram driver and fetches the sprom values from the
+nvram and provides it to any other driver. The calibration data for the
+wifi chip the mac address and some more board description data is
+stores in the sprom.
+
+This is based on a copy of arch/mips/bcm47xx/sprom.c and my plan is to
+make the bcm47xx MIPS SoCs also use this driver some time later.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ .../devicetree/bindings/misc/bcm47xx-sprom.txt | 16 +
+ drivers/misc/Kconfig | 11 +
+ drivers/misc/Makefile | 1 +
+ drivers/misc/bcm47xx-sprom.c | 690 +++++++++++++++++++++
+ 4 files changed, 718 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/misc/bcm47xx-sprom.txt
+ create mode 100644 drivers/misc/bcm47xx-sprom.c
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/misc/bcm47xx-sprom.txt
+@@ -0,0 +1,16 @@
++Broadcom bcm47xx/bcm53xx sprom converter
++
++This driver provbides an sprom based on a given nvram.
++
++Required properties:
++
++- compatible : brcm,bcm47xx-sprom
++
++- nvram : reference to a nvram driver, e.g. bcm47xx-nvram
++
++Example:
++
++sprom0: sprom@0 {
++ compatible = "brcm,bcm47xx-sprom";
++ nvram = <&nvram0>;
++};
+--- a/drivers/misc/Kconfig
++++ b/drivers/misc/Kconfig
+@@ -515,6 +515,17 @@ config VEXPRESS_SYSCFG
+ bus. System Configuration interface is one of the possible means
+ of generating transactions on this bus.
+
++config BCM47XX_SPROM
++ tristate "BCM47XX sprom driver"
++ help
++ This driver parses the sprom from a given nvram which is found on
++ Broadcom bcm47xx and bcm53xx SoCs.
++
++ The sprom contains board configuration data like the
++ calibration data fro the wifi chips, the mac addresses used
++ by the board and many other board configuration data. This
++ driver will provide the sprom to bcma.
++
+ source "drivers/misc/c2port/Kconfig"
+ source "drivers/misc/eeprom/Kconfig"
+ source "drivers/misc/cb710/Kconfig"
+--- a/drivers/misc/Makefile
++++ b/drivers/misc/Makefile
+@@ -56,3 +56,4 @@ obj-$(CONFIG_GENWQE) += genwqe/
+ obj-$(CONFIG_ECHO) += echo/
+ obj-$(CONFIG_VEXPRESS_SYSCFG) += vexpress-syscfg.o
+ obj-$(CONFIG_CXL_BASE) += cxl/
++obj-$(CONFIG_BCM47XX_SPROM) += bcm47xx-sprom.o