diff options
Diffstat (limited to 'arch/mn10300/proc-mn103e010/proc-init.c')
| -rw-r--r-- | arch/mn10300/proc-mn103e010/proc-init.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/mn10300/proc-mn103e010/proc-init.c b/arch/mn10300/proc-mn103e010/proc-init.c index 9a482efafa82..27b97980dca4 100644 --- a/arch/mn10300/proc-mn103e010/proc-init.c +++ b/arch/mn10300/proc-mn103e010/proc-init.c @@ -9,7 +9,9 @@ * 2 of the Licence, or (at your option) any later version. */ #include <linux/kernel.h> +#include <asm/fpu.h> #include <asm/rtc.h> +#include <asm/busctl-regs.h> /* * initialise the on-silicon processor peripherals @@ -28,6 +30,7 @@ asmlinkage void __init processor_init(void) __set_intr_stub(EXCEP_DAERROR, dtlb_aerror); __set_intr_stub(EXCEP_BUSERROR, raw_bus_error); __set_intr_stub(EXCEP_DOUBLE_FAULT, double_fault); + __set_intr_stub(EXCEP_FPU_DISABLED, fpu_disabled); __set_intr_stub(EXCEP_SYSCALL0, system_call); __set_intr_stub(EXCEP_NMI, nmi_handler); @@ -73,3 +76,37 @@ asmlinkage void __init processor_init(void) calibrate_clock(); } + +/* + * determine the memory size and base from the memory controller regs + */ +void __init get_mem_info(unsigned long *mem_base, unsigned long *mem_size) +{ + unsigned long base, size; + + *mem_base = 0; + *mem_size = 0; + + base = SDBASE(0); + if (base & SDBASE_CE) { + size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT; + size = ~size + 1; + base &= SDBASE_CBA; + + printk(KERN_INFO "SDRAM[0]: %luMb @%08lx\n", size >> 20, base); + *mem_size += size; + *mem_base = base; + } + + base = SDBASE(1); + if (base & SDBASE_CE) { + size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT; + size = ~size + 1; + base &= SDBASE_CBA; + + printk(KERN_INFO "SDRAM[1]: %luMb @%08lx\n", size >> 20, base); + *mem_size += size; + if (*mem_base == 0) + *mem_base = base; + } +} |