brcm47xx: sprom for nvram parsing

This adds support for parsing sprom form nvram for sprom version form 1 to 9.
It also adds sprom from nvram support for devices on the bcma bus.

SVN-Revision: 30638

1 files changed, 75 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-3.2/190-ssb-sprom-fix-some-sizes-signedness.patch b/target/linux/brcm47xx/patches-3.2/190-ssb-sprom-fix-some-sizes-signedness.patch
new file mode 100644
index 0000000..ac73f3d
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.2/190-ssb-sprom-fix-some-sizes-signedness.patch
@@ -0,0 +1,75 @@
+From 0af3fa9e4c9ea0ca0662f09183d71ea9a7eb572f Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sat, 18 Feb 2012 14:33:08 +0100
+Subject: [PATCH 190/202] ssb: sprom fix some sizes / signedness
+
+Some parts of the sprom struct are bigger than needed.
+The leddc and maxpwr values are just 8 bit long and not 16.
+rxpo2g and rxpo5g are signed
+antenna_gain is unsigned
+
+I got these information for the open source part of the Braodcom SDK
+covering sprom version 1 to 9. rxpo2g contained a negative number on my
+bcm5354 based device, this cased an error and Broadcom SDK says this is
+signed.
+
+I was unable to find any reverences to antenna_gain.ghz5 in the
+Broadcom SDK.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ include/linux/ssb/ssb.h |   20 ++++++++++----------
+ 1 files changed, 10 insertions(+), 10 deletions(-)
+
+--- a/include/linux/ssb/ssb.h
++++ b/include/linux/ssb/ssb.h
+@@ -33,8 +33,8 @@ struct ssb_sprom {
+ 	u8 et1mdcport;		/* MDIO for enet1 */
+ 	u16 board_rev;		/* Board revision number from SPROM. */
+ 	u8 country_code;	/* Country Code */
+-	u16 leddc_on_time;	/* LED Powersave Duty Cycle On Count */
+-	u16 leddc_off_time;	/* LED Powersave Duty Cycle Off Count */
++	u8 leddc_on_time;	/* LED Powersave Duty Cycle On Count */
++	u8 leddc_off_time;	/* LED Powersave Duty Cycle Off Count */
+ 	u8 ant_available_a;	/* 2GHz antenna available bits (up to 4) */
+ 	u8 ant_available_bg;	/* 5GHz antenna available bits (up to 4) */
+ 	u16 pa0b0;
+@@ -53,10 +53,10 @@ struct ssb_sprom {
+ 	u8 gpio1;		/* GPIO pin 1 */
+ 	u8 gpio2;		/* GPIO pin 2 */
+ 	u8 gpio3;		/* GPIO pin 3 */
+-	u16 maxpwr_bg;		/* 2.4GHz Amplifier Max Power (in dBm Q5.2) */
+-	u16 maxpwr_al;		/* 5.2GHz Amplifier Max Power (in dBm Q5.2) */
+-	u16 maxpwr_a;		/* 5.3GHz Amplifier Max Power (in dBm Q5.2) */
+-	u16 maxpwr_ah;		/* 5.8GHz Amplifier Max Power (in dBm Q5.2) */
++	u8 maxpwr_bg;		/* 2.4GHz Amplifier Max Power (in dBm Q5.2) */
++	u8 maxpwr_al;		/* 5.2GHz Amplifier Max Power (in dBm Q5.2) */
++	u8 maxpwr_a;		/* 5.3GHz Amplifier Max Power (in dBm Q5.2) */
++	u8 maxpwr_ah;		/* 5.8GHz Amplifier Max Power (in dBm Q5.2) */
+ 	u8 itssi_a;		/* Idle TSSI Target for A-PHY */
+ 	u8 itssi_bg;		/* Idle TSSI Target for B/G-PHY */
+ 	u8 tri2g;		/* 2.4GHz TX isolation */
+@@ -67,8 +67,8 @@ struct ssb_sprom {
+ 	u8 txpid5gl[4];		/* 4.9 - 5.1GHz TX power index */
+ 	u8 txpid5g[4];		/* 5.1 - 5.5GHz TX power index */
+ 	u8 txpid5gh[4];		/* 5.5 - ...GHz TX power index */
+-	u8 rxpo2g;		/* 2GHz RX power offset */
+-	u8 rxpo5g;		/* 5GHz RX power offset */
++	s8 rxpo2g;		/* 2GHz RX power offset */
++	s8 rxpo5g;		/* 5GHz RX power offset */
+ 	u8 rssisav2g;		/* 2GHz RSSI params */
+ 	u8 rssismc2g;
+ 	u8 rssismf2g;
+@@ -95,10 +95,10 @@ struct ssb_sprom {
+ 	 * loss in the connectors is bigger than the gain. */
+ 	struct {
+ 		struct {
+-			s8 a0, a1, a2, a3;
++			u8 a0, a1, a2, a3;
+ 		} ghz24;	/* 2.4GHz band */
+ 		struct {
+-			s8 a0, a1, a2, a3;
++			u8 a0, a1, a2, a3;
+ 		} ghz5;		/* 5GHz band */
+ 	} antenna_gain;
+