From ba605c7bf0305cb42febac3e7d74fd7d80796a72 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 17 Jul 2008 02:30:08 +0000
Subject: huge madwifi update (work in progress, disabled by default, compiles
 but breaks at run time)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11851 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../madwifi/patches-r3776/318-ifxmips_eeprom.patch | 87 ++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 package/madwifi/patches-r3776/318-ifxmips_eeprom.patch

(limited to 'package/madwifi/patches-r3776/318-ifxmips_eeprom.patch')

diff --git a/package/madwifi/patches-r3776/318-ifxmips_eeprom.patch b/package/madwifi/patches-r3776/318-ifxmips_eeprom.patch
new file mode 100644
index 0000000000..4fcc5926f6
--- /dev/null
+++ b/package/madwifi/patches-r3776/318-ifxmips_eeprom.patch
@@ -0,0 +1,87 @@
+Index: madwifi-trunk-r3776/ath_hal/ah_os.c
+===================================================================
+--- madwifi-trunk-r3776.orig/ath_hal/ah_os.c	2008-07-17 00:21:30.000000000 +0200
++++ madwifi-trunk-r3776/ath_hal/ah_os.c	2008-07-17 04:00:18.000000000 +0200
+@@ -917,9 +917,56 @@
+  * NB: see the comments in ah_osdep.h about byte-swapping register
+  *     reads and writes to understand what's going on below.
+  */
++
++#ifdef CONFIG_IFXMIPS
++extern int ifxmips_has_brn_block(void);
++static int ifxmips_emulate = 0;
++#define EEPROM_EMULATION 1
++#endif
++
++#ifdef EEPROM_EMULATION
++static int ath_hal_eeprom(struct ath_hal *ah, unsigned long addr, int val, int write)
++{
++	static int addrsel = 0;
++	static int rc = 0;
++
++	if (write) {
++		if(addr == 0x6000) {
++			addrsel = val * 2;
++			rc = 0;
++		}
++	} else {
++		switch(addr)
++		{
++		case 0x600c:
++			if(rc++ < 2)
++				val = 0x00000000;
++			else
++				val = 0x00000002;
++			break;
++		case 0x6004:
++			val = cpu_to_le16(__raw_readw((u16 *) KSEG1ADDR(0xb07f0400 + addrsel)));
++			/* this forces the regdomain to 0x00 (worldwide), as the original setting
++			 * causes issues with the HAL */
++			if (addrsel == 0x17e)
++				val = 0;
++			break;
++		}
++	}
++	return val;
++}
++#endif
++
+ void __ahdecl
+ ath_hal_reg_write(struct ath_hal *ah, u_int address, u_int32_t value)
+ {
++#ifdef EEPROM_EMULATION
++	if((address >= 0x6000) && (address <= 0x6010) && ifxmips_emulate) {
++		ath_hal_eeprom(ah, address, value, 1);
++		return;
++	}
++#endif
++
+ 	_trace_regop(ah, REGOP_WRITE, address, value);
+ 	_OS_REG_WRITE(ah, address, value);
+ }
+@@ -929,7 +976,14 @@
+ u_int32_t __ahdecl
+ ath_hal_reg_read(struct ath_hal *ah, u_int address)
+ {
+- 	u_int32_t val = _OS_REG_READ(ah, address);
++	u_int32_t val;
++
++#ifdef EEPROM_EMULATION
++	if((address >= 0x6000) && (address <= 0x6010) && ifxmips_emulate)
++		val = ath_hal_eeprom(ah, address, 0, 0);
++	else
++#endif
++		val = _OS_REG_READ(ah, address);
+ 	_trace_regop(ah, REGOP_READ, address, val);
+ 	return val;
+ }
+@@ -1123,6 +1177,9 @@
+ #ifdef MMIOTRACE
+ 	kmmio_logmsg = _kmmio_logmsg;
+ #endif
++#ifdef CONFIG_IFXMIPS
++	ifxmips_emulate = ifxmips_has_brn_block();
++#endif
+ 
+ 	sep = "";
+ 	for (i = 0; ath_hal_buildopts[i] != NULL; i++) {
-- 
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