Jesper Nilsson [Fri, 8 Feb 2008 09:24:41 +0000 (10:24 +0100)]
CRIS v32: Clean up nandflash.c for ARTPEC-3 and ETRAX FS.
Clean up issues noticed by Andrew Morton:
- Use a combined struct for allocating the mtd_info and nand_chip structs
instead of using anonymous memory as the example in
Documentation/DocBook/mtdnand.tmpl
- Use kzalloc instead of using kmalloc/memset(0)
- Make crisv32_device_ready static.
Jesper Nilsson [Wed, 6 Feb 2008 13:52:40 +0000 (14:52 +0100)]
CRIS v10: Cleanup of drivers/gpio.c
- Change parameters of gpio_write (const char * buf -> const char __user *buf)
- Don't initialize static variables to zero.
- Remove useless casts from void.
- Change name of interrupt routine (gpio_pa_interrupt -> gpio_interrupt)
- Use kzmalloc instead of allocating memory and zeroing it manually.
- Correct casts for copy_to_user and copy_from_user to (void __user *)
- Make file_operations gpio_fops static.
- Make ioif_watcher static, not used outside this file.
Jesper Nilsson [Tue, 29 Jan 2008 09:43:05 +0000 (10:43 +0100)]
CRIS v32: Minor changes to avoid errors in asm-cris/arch-v32/hwregs/reg_rdwr.h
- Add ifdef around macros to read and write hardware registers
- Add parens around REG_READ expression to avoid possible precedence errors.
- Remove useless CVS id tag.
Jesper Nilsson [Mon, 28 Jan 2008 16:42:17 +0000 (17:42 +0100)]
CRIS v32: Rename variable used in macro for arch-v32/hwregs/dma.h
The old name "r" would quite often produce warnings when other
variables with the same name was shadowed. Rename it __x to
make it more unlikely to happen.
Jesper Nilsson [Wed, 30 Jan 2008 11:57:31 +0000 (12:57 +0100)]
CRIS v32: Fix startup oops and replace hardcoded pagesize in vmlinux.lds.S
- Move alignment of init data to page size outside define CONFIG_BLK_DEV_INITRD
This avoids oops due to memory on the same page as init data being freed.
- Change hardcoded page size to use macro from asm/page.h
- Add reserved memory via CONFIG_ETRAX_VMEM_SIZE.
- Use available defines for TEXT_TEXT and INITCALLS.
- Cleanup whitespace.
Jesper Nilsson [Fri, 25 Jan 2008 16:54:14 +0000 (17:54 +0100)]
CRIS v32: Update lib/checksum.S and lib/checksumcopy.S
- Slight tweaks, use $acr + addoq to propagate carry across the loop boundary.
- Better use of latency cycles.
- Remove duplicate folding of carry, it is not needed.
Jesper Nilsson [Fri, 25 Jan 2008 15:15:44 +0000 (16:15 +0100)]
CRIS v32: Update kernel/smp.c for CRIS v32.
- Change include paths to machine specific headers (asm/arch/hwregs -> hwregs)
- Add cpu_possible_map as cpumask_t and export it.
- Drop struct pt_regs parameter from crisv32_ipi_interrupt.
- timer -> timer0
Jesper Nilsson [Fri, 25 Jan 2008 15:10:02 +0000 (16:10 +0100)]
CRIS v32: Update signal handling in kernel/signal.c
- do_signal now returns void, and does not have the previous signal set
as a parameter.
- Remove sys_rt_sigsuspend, we can use the common one instead.
- Change sys_sigsuspend to be more like x86, don't call do_signal here.
- handle_signal, setup_frame and setup_rt_frame now return -EFAULT
if we've delivered a segfault, which is used by callers to perform
necessary cleanup.
- Break long lines, correct whitespace and formatting errors.
Jesper Nilsson [Fri, 25 Jan 2008 14:42:41 +0000 (15:42 +0100)]
CRIS v10: Update drivers/gpio.c, fix locking and general improvements.
- Change all spin_lock/local_irq_save to spin_lock_irqsave.
- Change multiple returns in functions where we have a lock to goto out.
- Correct number of arguments to gpio_poll_timer_interrupt, gpio_pa_interrupt.
- Break out gpio_write logic to smaller functions to make it readable.
- In setget_input and setget_output, avoid extra if-indent level.
- Change name LED_* -> CRIS_LED_* to avoid name clash.
- Don't use braces around single statement ifs.
- Fix whitespace errors.
- Remove useless CVS id and log.
Jesper Nilsson [Thu, 24 Jan 2008 13:34:37 +0000 (14:34 +0100)]
CRIS v32: Change debug and formatting in kernel/fasttimer.c
- Don't use SANITYCHECK(x) as a macro, test FAST_TIMER_SANITY_CHECKS with
ifdef. This makes it possible for automatic indent etc to work.
- Correct some whitespace errors.
- Don't initialize static variable.
Jesper Nilsson [Thu, 24 Jan 2008 13:31:55 +0000 (14:31 +0100)]
CRIS v32: Update kernel/crisksyms.c
- Include pinmux.h from machine specific directory.
- Add some more symbols: crisv32_pinmux_alloc, crisv32_pinmux_dealloc_fixed,
crisv32_io_get_name and crisv32_io_get
Jesper Nilsson [Thu, 24 Jan 2008 13:24:09 +0000 (14:24 +0100)]
CRIS v32: Update driver for RTC chip pcf8563.
- Moved all calls to register_chrdev to a function called by module_init.
- Added mutex locking.
- Added better error handling at start up.
- Added BIN_TO_BCD of the month value before it is saved to the RTC.
- Corrected the month value returned by pcf8563_readreg.
- Cache the voltage low value at driver init so the battery status
information does not get 'accidentally' cleared when setting the RTC time.
- Removed obsolete CONFIG_ETRAX_RTC_READONLY
- Voltage low ioctl():s RTC_VLOW_RD -> RTC_VL_READ, RTC_VLOW_SET -> RTC_VL_CLR
Jesper Nilsson [Mon, 21 Jan 2008 10:52:52 +0000 (11:52 +0100)]
CRIS v10: Setup serial port 2 to avoid accidental TXD pulse on startup.
If serial port 2 is used, select it in R_GEN_CONFIG.
If serial port 2 is used, setup the control registers for the port.
This is done to avoid a pulse on the TXD line during start up,
which could disturb some units.