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70 lines
2.4 KiB
70 lines
2.4 KiB
9 years ago
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From 4e0ab3269a6d260a41a3673157753147f5f71341 Mon Sep 17 00:00:00 2001
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From: Hauke Mehrtens <hauke@hauke-m.de>
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Date: Sun, 4 May 2014 13:19:20 +0200
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Subject: [PATCH 03/17] bcm47xx-sprom: add Broadcom sprom parser driver
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This driver needs an nvram driver and fetches the sprom values from the
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nvram and provides it to any other driver. The calibration data for the
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wifi chip the mac address and some more board description data is
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stores in the sprom.
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This is based on a copy of arch/mips/bcm47xx/sprom.c and my plan is to
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make the bcm47xx MIPS SoCs also use this driver some time later.
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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---
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.../devicetree/bindings/misc/bcm47xx-sprom.txt | 16 +
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drivers/misc/Kconfig | 11 +
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drivers/misc/Makefile | 1 +
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drivers/misc/bcm47xx-sprom.c | 690 +++++++++++++++++++++
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4 files changed, 718 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/misc/bcm47xx-sprom.txt
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create mode 100644 drivers/misc/bcm47xx-sprom.c
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/misc/bcm47xx-sprom.txt
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@@ -0,0 +1,16 @@
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+Broadcom bcm47xx/bcm53xx sprom converter
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+
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+This driver provbides an sprom based on a given nvram.
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+
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+Required properties:
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+
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+- compatible : brcm,bcm47xx-sprom
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+
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+- nvram : reference to a nvram driver, e.g. bcm47xx-nvram
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+
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+Example:
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+
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+sprom0: sprom@0 {
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+ compatible = "brcm,bcm47xx-sprom";
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+ nvram = <&nvram0>;
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+};
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--- a/drivers/misc/Kconfig
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+++ b/drivers/misc/Kconfig
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@@ -525,6 +525,17 @@ config VEXPRESS_SYSCFG
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bus. System Configuration interface is one of the possible means
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of generating transactions on this bus.
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+config BCM47XX_SPROM
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+ tristate "BCM47XX sprom driver"
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+ help
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+ This driver parses the sprom from a given nvram which is found on
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+ Broadcom bcm47xx and bcm53xx SoCs.
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+
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+ The sprom contains board configuration data like the
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+ calibration data fro the wifi chips, the mac addresses used
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+ by the board and many other board configuration data. This
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+ driver will provide the sprom to bcma.
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+
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source "drivers/misc/c2port/Kconfig"
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source "drivers/misc/eeprom/Kconfig"
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source "drivers/misc/cb710/Kconfig"
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--- a/drivers/misc/Makefile
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+++ b/drivers/misc/Makefile
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@@ -56,3 +56,4 @@ obj-$(CONFIG_GENWQE) += genwqe/
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obj-$(CONFIG_ECHO) += echo/
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obj-$(CONFIG_VEXPRESS_SYSCFG) += vexpress-syscfg.o
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obj-$(CONFIG_CXL_BASE) += cxl/
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+obj-$(CONFIG_BCM47XX_SPROM) += bcm47xx-sprom.o
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