diff options
Diffstat (limited to 'arch/blackfin/kernel/setup.c')
| -rw-r--r-- | arch/blackfin/kernel/setup.c | 116 |
1 files changed, 75 insertions, 41 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 8dcd76e..0e74644 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -459,7 +459,7 @@ static u_long get_vco(void) return vco; } -/*Get the Core clock*/ +/* Get the Core clock */ u_long get_cclk(void) { u_long csel, ssel; @@ -493,12 +493,24 @@ u_long get_sclk(void) } EXPORT_SYMBOL(get_sclk); +unsigned long sclk_to_usecs(unsigned long sclk) +{ + return (USEC_PER_SEC * (u64)sclk) / get_sclk(); +} +EXPORT_SYMBOL(sclk_to_usecs); + +unsigned long usecs_to_sclk(unsigned long usecs) +{ + return get_sclk() / (USEC_PER_SEC * (u64)usecs); +} +EXPORT_SYMBOL(usecs_to_sclk); + /* * Get CPU information for use by the procfs. */ static int show_cpuinfo(struct seq_file *m, void *v) { - char *cpu, *mmu, *fpu, *name; + char *cpu, *mmu, *fpu, *vendor, *cache; uint32_t revid; u_long cclk = 0, sclk = 0; @@ -508,70 +520,83 @@ static int show_cpuinfo(struct seq_file *m, void *v) mmu = "none"; fpu = "none"; revid = bfin_revid(); - name = bfin_board_name; 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: + vendor = "Analog Devices"; + break; + default: + vendor = "unknown"; + break; + } + 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"); + 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"); + 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"); + cache = "dbank-A/B\t: sram/sram"; dcache_size = 0; dsup_banks = 0; break; default: + 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 +650,15 @@ 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", bfin_board_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; } |