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[RFC PATCH] Alchemy: Au1210/Au1250 CPU support

To: linux-mips@linux-mips.org
Subject: [RFC PATCH] Alchemy: Au1210/Au1250 CPU support
From: Manuel Lauss <mano@roarinelk.homelinux.net>
Date: Thu, 6 Dec 2007 09:07:55 +0100
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.16 (2007-06-09)
This patch adds IDs fornew Au1200 variants: Au1210 and Au1250.
They are essentially identical to the Au1200 except for the Au1210
which has a different SoC-ID in the PRId register [bits 31:24].
The Au1250 is a "Au1200 V0.2".

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>

--- linux-2.6.24-rc4/include/asm-mips/cpu.h     2007-12-04 08:33:33.143002000 
+0100
+++ linux-2.6.24-rc4-work/include/asm-mips/cpu.h        2007-12-06 
16:28:48.000000000 +0100
@@ -195,8 +195,8 @@ enum cpu_type_enum {
         * MIPS32 class processors
         */
        CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_74K, CPU_AU1000,
-       CPU_AU1100, CPU_AU1200, CPU_AU1500, CPU_AU1550, CPU_PR4450,
-       CPU_BCM3302, CPU_BCM4710,
+       CPU_AU1100, CPU_AU1200, CPU_AU1210, CPU_AU1250, CPU_AU1500, CPU_AU1550,
+       CPU_PR4450, CPU_BCM3302, CPU_BCM4710,
 
        /*
         * MIPS64 class processors
--- linux-2.6.24-rc4/arch/mips/kernel/cpu-probe.c       2007-12-04 
08:33:00.793002000 +0100
+++ linux-2.6.24-rc4-work/arch/mips/kernel/cpu-probe.c  2007-12-06 
16:27:06.000000000 +0100
@@ -188,6 +188,8 @@ static inline void check_wait(void)
        case CPU_AU1500:
        case CPU_AU1550:
        case CPU_AU1200:
+       case CPU_AU1210:
+       case CPU_AU1250:
                if (allow_au1k_wait)
                        cpu_wait = au1k_wait;
                break;
@@ -733,6 +735,11 @@ static inline void cpu_probe_alchemy(str
                        break;
                case 4:
                        c->cputype = CPU_AU1200;
+                       if (2 == (c->processor_id & 0xff))
+                               c->cputype = CPU_AU1250;
+                       break;
+               case 5:
+                       c->cputype = CPU_AU1210;
                        break;
                default:
                        panic("Unknown Au Core!");
@@ -858,6 +865,8 @@ static __init const char *cpu_to_name(st
        case CPU_AU1100:        name = "Au1100"; break;
        case CPU_AU1550:        name = "Au1550"; break;
        case CPU_AU1200:        name = "Au1200"; break;
+       case CPU_AU1210:        name = "Au1210"; break;
+       case CPU_AU1250:        name = "Au1250"; break;
        case CPU_4KEC:          name = "MIPS 4KEc"; break;
        case CPU_4KSC:          name = "MIPS 4KSc"; break;
        case CPU_VR41XX:        name = "NEC Vr41xx"; break;
--- linux-2.6.24-rc4/arch/mips/mm/c-r4k.c       2007-12-04 08:33:00.963002000 
+0100
+++ linux-2.6.24-rc4-work/arch/mips/mm/c-r4k.c  2007-12-06 16:44:07.000000000 
+0100
@@ -989,6 +989,8 @@ static void __init probe_pcache(void)
        case CPU_AU1100:
        case CPU_AU1550:
        case CPU_AU1200:
+       case CPU_AU1210:
+       case CPU_AU1250:
                c->icache.flags |= MIPS_CACHE_IC_F_DC;
                break;
        }
--- linux-2.6.24-rc4/arch/mips/mm/tlbex.c       2007-12-04 08:33:00.983002000 
+0100
+++ linux-2.6.24-rc4-work/arch/mips/mm/tlbex.c  2007-12-06 16:44:30.000000000 
+0100
@@ -894,6 +894,8 @@ static __init void build_tlb_write_entry
        case CPU_AU1500:
        case CPU_AU1550:
        case CPU_AU1200:
+       case CPU_AU1210:
+       case CPU_AU1250:
        case CPU_PR4450:
                i_nop(p);
                tlbw(p);

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