diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-27 18:53:26 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-27 18:53:26 -0700 |
commit | bdab225015fbbb45ccd8913f5d7c01b2bf67d8b2 (patch) | |
tree | 5ef62301face958977a084bf2b6c5300296a25f2 /arch/mn10300/proc-mn103e010/proc-init.c | |
parent | 7c5814c7199851c5fe9395d08fc1ab3c8c1531ea (diff) | |
parent | 7c7fcf762e405eb040ee10d22d656a791f616122 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300: (44 commits)
MN10300: Save frame pointer in thread_info struct rather than global var
MN10300: Change "Matsushita" to "Panasonic".
MN10300: Create a defconfig for the ASB2364 board
MN10300: Update the ASB2303 defconfig
MN10300: ASB2364: Add support for SMSC911X and SMC911X
MN10300: ASB2364: Handle the IRQ multiplexer in the FPGA
MN10300: Generic time support
MN10300: Specify an ELF HWCAP flag for MN10300 Atomic Operations Unit support
MN10300: Map userspace atomic op regs as a vmalloc page
MN10300: And Panasonic AM34 subarch and implement SMP
MN10300: Delete idle_timestamp from irq_cpustat_t
MN10300: Make various interrupt priority settings configurable
MN10300: Optimise do_csum()
MN10300: Implement atomic ops using atomic ops unit
MN10300: Make the FPU operate in non-lazy mode under SMP
MN10300: SMP TLB flushing
MN10300: Use the [ID]PTEL2 registers rather than [ID]PTEL for TLB control
MN10300: Make the use of PIDR to mark TLB entries controllable
MN10300: Rename __flush_tlb*() to local_flush_tlb*()
MN10300: AM34 erratum requires MMUCTR read and write on exception entry
...
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 9a482efafa8..27b97980dca 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; + } +} |