Blackfin arch: Fix up /proc/cpuinfo so it is like everyone else
Robin Getz [Sun, 21 Oct 2007 09:03:31 +0000 (17:03 +0800)]
Fix up /proc/cpuinfo so it is like everyone else, and gets
parsed by various applications properly. Still needs some tweaking on
parts without full L1 sram, like 532, 531, so it doesn't print out L1
bank info that doesn't exist.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

arch/blackfin/kernel/setup.c

index 8dcd76e..34fbf93 100644 (file)
@@ -498,7 +498,7 @@ EXPORT_SYMBOL(get_sclk);
  */
 static int show_cpuinfo(struct seq_file *m, void *v)
 {
-       char *cpu, *mmu, *fpu, *name;
+       char *cpu, *mmu, *fpu, *name, vendor[20], cache[30];
        uint32_t revid;
 
        u_long cclk = 0, sclk = 0;
@@ -513,65 +513,78 @@ static int show_cpuinfo(struct seq_file *m, void *v)
        cclk = get_cclk();
        sclk = get_sclk();
 
-       seq_printf(m, "CPU:\t\tADSP-%s Rev. 0.%d\n"
-                  "MMU:\t\t%s\n"
-                  "FPU:\t\t%s\n"
-                  "Core Clock:\t%9lu Hz\n"
-                  "System Clock:\t%9lu Hz\n"
-                  "BogoMips:\t%lu.%02lu\n"
-                  "Calibration:\t%lu loops\n",
-                  cpu, revid, mmu, fpu,
-                  cclk,
-                  sclk,
-                  (loops_per_jiffy * HZ) / 500000,
-                  ((loops_per_jiffy * HZ) / 5000) % 100,
-                  (loops_per_jiffy * HZ));
-       seq_printf(m, "Board Name:\t%s\n", name);
-       seq_printf(m, "Board Memory:\t%ld MB\n", physical_mem_end >> 20);
-       seq_printf(m, "Kernel Memory:\t%ld MB\n", (unsigned long)_ramend >> 20);
-       if (bfin_read_IMEM_CONTROL() & (ENICPLB | IMC))
-               seq_printf(m, "I-CACHE:\tON\n");
-       else
-               seq_printf(m, "I-CACHE:\tOFF\n");
-       if ((bfin_read_DMEM_CONTROL()) & (ENDCPLB | DMC_ENABLE))
-               seq_printf(m, "D-CACHE:\tON"
-#if defined CONFIG_BFIN_WB
-                          " (write-back)"
-#elif defined CONFIG_BFIN_WT
-                          " (write-through)"
-#endif
-                          "\n");
-       else
-               seq_printf(m, "D-CACHE:\tOFF\n");
-
+       switch (bfin_read_CHIPID() & CHIPID_MANUFACTURE) {
+       case(0xca):
+               strcpy(vendor, "AnalogDevices");
+               break;
+       default:
+               strcpy(vendor, "unknown");
+       }
 
+       seq_printf(m, "processor\t: %d\n"
+               "vendor_id\t: %s\n"
+               "cpu family\t: 0x%x\n"
+               "model name\t: ADSP-%s %lu(MHz CCLK) %lu(MHz SCLK)\n"
+               "stepping\t: %d\n",
+               0,
+               vendor,
+               (bfin_read_CHIPID() & CHIPID_FAMILY),
+               cpu, cclk/1000000, sclk/1000000,
+               revid);
+
+       seq_printf(m, "cpu MHz\t\t: %lu.%03lu/%lu.%03lu\n",
+               cclk/1000000, cclk%1000000,
+               sclk/1000000, sclk%1000000);
+       seq_printf(m, "bogomips\t: %lu.%02lu\n"
+               "Calibration\t: %lu loops\n",
+               (loops_per_jiffy * HZ) / 500000,
+               ((loops_per_jiffy * HZ) / 5000) % 100,
+               (loops_per_jiffy * HZ));
+
+       /* Check Cache configutation */
        switch (bfin_read_DMEM_CONTROL() & (1 << DMC0_P | 1 << DMC1_P)) {
        case ACACHE_BSRAM:
-               seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tSRAM\n");
+               strcpy(cache, "dbank-A/B\t: cache/sram");
                dcache_size = 16;
                dsup_banks = 1;
                break;
        case ACACHE_BCACHE:
-               seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tCACHE\n");
+               strcpy(cache, "dbank-A/B\t: cache/cache");
                dcache_size = 32;
                dsup_banks = 2;
                break;
        case ASRAM_BSRAM:
-               seq_printf(m, "DBANK-A:\tSRAM\n" "DBANK-B:\tSRAM\n");
+               strcpy(cache, "dbank-A/B\t: sram/sram");
                dcache_size = 0;
                dsup_banks = 0;
                break;
        default:
+               strcpy(cache, "unknown");
+               dcache_size = 0;
+               dsup_banks = 0;
                break;
        }
 
+       /* Is it turned on? */
+       if (!((bfin_read_DMEM_CONTROL()) & (ENDCPLB | DMC_ENABLE)))
+               dcache_size = 0;
 
-       seq_printf(m, "I-CACHE Size:\t%dKB\n", BFIN_ICACHESIZE / 1024);
-       seq_printf(m, "D-CACHE Size:\t%dKB\n", dcache_size);
-       seq_printf(m, "I-CACHE Setup:\t%d Sub-banks/%d Ways, %d Lines/Way\n",
+       seq_printf(m, "cache size\t: %d KB(L1 icache) "
+               "%d KB(L1 dcache-%s) %d KB(L2 cache)\n",
+               BFIN_ICACHESIZE / 1024, dcache_size,
+#if defined CONFIG_BFIN_WB
+               "wb"
+#elif defined CONFIG_BFIN_WT
+               "wt"
+#endif
+               , 0);
+
+       seq_printf(m, "%s\n", cache);
+
+       seq_printf(m, "icache setup\t: %d Sub-banks/%d Ways, %d Lines/Way\n",
                   BFIN_ISUBBANKS, BFIN_IWAYS, BFIN_ILINES);
        seq_printf(m,
-                  "D-CACHE Setup:\t%d Super-banks/%d Sub-banks/%d Ways, %d Lines/Way\n",
+                  "dcache setup\t: %d Super-banks/%d Sub-banks/%d Ways, %d Lines/Way\n",
                   dsup_banks, BFIN_DSUBBANKS, BFIN_DWAYS,
                   BFIN_DLINES);
 #ifdef CONFIG_BFIN_ICACHE_LOCK
@@ -625,6 +638,15 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                seq_printf(m, "No Ways are locked\n");
        }
 #endif
+
+       seq_printf(m, "board name\t: %s\n", name);
+       seq_printf(m, "board memory\t: %ld kB (0x%p -> 0x%p)\n",
+                physical_mem_end >> 10, (void *)0, (void *)physical_mem_end);
+       seq_printf(m, "kernel memory\t: %d kB (0x%p -> 0x%p)\n",
+               ((int)memory_end - (int)_stext) >> 10,
+               _stext,
+               (void *)memory_end);
+
        return 0;
 }