I have attached a patch for EJTAG exception support on MIPS32 CPUs.
I send these patches to everyone and not just Ralf, because I've got
questions from various people about MIPS32 CPUs and Malta board support
in the 2.4.17 kernel.
Sorry to disturb the rest of you.
/Carsten
--
_ _ ____ ___ Carsten Langgaard Mailto:carstenl@mips.com
|\ /|||___)(___ MIPS Denmark Direct: +45 4486 5527
| \/ ||| ____) Lautrupvang 4B Switch: +45 4486 5555
TECHNOLOGIES 2750 Ballerup Fax...: +45 4486 5556
Denmark http://www.mips.com
Index: arch/mips/kernel/setup.c
===================================================================
RCS file: /cvs/linux/arch/mips/kernel/setup.c,v
retrieving revision 1.96.2.4
diff -u -r1.96.2.4 setup.c
--- arch/mips/kernel/setup.c 2002/01/07 03:33:54 1.96.2.4
+++ arch/mips/kernel/setup.c 2002/01/17 15:11:23
@@ -150,6 +150,10 @@
case CPU_NEVADA:
case CPU_RM7000:
case CPU_TX49XX:
+ case CPU_4KC:
+ case CPU_4KEC:
+ case CPU_4KSC:
+ case CPU_5KC:
cpu_wait = r4k_wait;
printk(" available.\n");
break;
@@ -435,7 +439,7 @@
mips_cpu.options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
MIPS_CPU_4KTLB | MIPS_CPU_COUNTER |
MIPS_CPU_DIVEC | MIPS_CPU_WATCH |
- MIPS_CPU_MCHECK;
+ MIPS_CPU_MCHECK | MIPS_CPU_EJTAG;
config1 = read_mips32_cp0_config1();
if (config1 & (1 << 3))
mips_cpu.options |= MIPS_CPU_WATCH;
@@ -452,7 +456,7 @@
mips_cpu.options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
MIPS_CPU_4KTLB | MIPS_CPU_COUNTER |
MIPS_CPU_DIVEC | MIPS_CPU_WATCH |
- MIPS_CPU_MCHECK;
+ MIPS_CPU_MCHECK | MIPS_CPU_EJTAG;
config1 = read_mips32_cp0_config1();
if (config1 & (1 << 3))
mips_cpu.options |= MIPS_CPU_WATCH;
Index: arch/mips/kernel/traps.c
===================================================================
RCS file: /cvs/linux/arch/mips/kernel/traps.c,v
retrieving revision 1.99.2.3
diff -u -r1.99.2.3 traps.c
--- arch/mips/kernel/traps.c 2001/12/29 05:37:49 1.99.2.3
+++ arch/mips/kernel/traps.c 2002/01/17 15:11:23
@@ -853,7 +853,7 @@
* destination.
*/
if (mips_cpu.options & MIPS_CPU_EJTAG)
- memcpy((void *)(KSEG0 + 0x200), &except_vec_ejtag_debug, 0x80);
+ memcpy((void *)(KSEG0 + 0x300), &except_vec_ejtag_debug, 0x80);
/*
* Only some CPUs have the watch exceptions or a dedicated
