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-rw-r--r--package/madwifi/patches-r3776/318-ifxmips_eeprom.patch87
1 files changed, 87 insertions, 0 deletions
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 000000000..4fcc5926f
--- /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++) {