linux/arch/xtensa/platforms, branch v3.7

xtensa: reorganize SR referencing

2012-10-16T04:48:08Z

- reference SRs by names where possible, not by numbers; - get rid of __stringify around SR names where possible; - remove unneeded SR names from asm/regs.h; - add SREG_ prefix to remaining SR names; Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: ISS: fix rs_put_char

2012-10-16T04:39:20Z

ISS serial console prints garbage instead of symbols printed via rs_put_char. gcc optimizes away putting prined symbol into memory buffer because there's no evidence that the buffer is used afterwards. Make rs_put_char and rs_write use simc_write that has explicit wmb. Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: ISS: fix specific simcalls

2012-10-16T04:39:05Z

Simcalls that take memory buffer definitely need wmb or rmb to make sure gcc doesn't optimize away code that fills the buffer. Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

Merge tag 'xtensa-next-20121008' of git://github.com/czankel/xtensa-linux

2012-10-09T07:11:46Z

Pull Xtensa patchset from Chris Zankel: "The Xtensa tree has been broken for some time now, and this patchset brings it back to life. It has been part of the linux-next tree for some time. Most changes are inside the xtensa subdirectory; the other changes mostly add another rule to already existing #ifdefs to exclude Xtensa, where required. The only 'common' change is to add two more sections ('.xt.prop' and '.xt.lit') to the white list in modpost." * tag 'xtensa-next-20121008' of git://github.com/czankel/xtensa-linux: (27 commits) xtensa: Setup CROSS_COMPILE at the top xtensa: drop CONFIG_EMBEDDED_RAMDISK xtensa: fix TIOCGSERIAL and TIOCSSERIAL definitions xtensa: provide dummy gcc intrinsics xtensa: add missing symbol exports parport: disable for xtensa arch xtensa: rename MISC SR definition to avoid name clashes hisax: disable build for big-endian xtensa xtensa: fix CODA build xtensa: fix parallel make xtensa: ISS: drop unused io.c xtensa: ISS: exit simulator in case of halt or poweroff xtensa: ISS: change keyboard polling rate xtensa: ISS: add platform_pcibios_init xtensa: ISS: add dummy serial.h for ISS platform xtensa: change default platform clock frequency to 10MHz xtensa: add ARCH_WANT_OPTIONAL_GPIOLIB to xtensa config xtensa: set NO_IOPORT to 'n' by default xtensa: adopt generic io routines xtensa: fix ioremap ...

xtensa: ISS: drop unused io.c

2012-10-03T22:12:23Z

Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: ISS: exit simulator in case of halt or poweroff

2012-10-03T22:12:19Z

Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: ISS: change keyboard polling rate

2012-10-03T22:12:14Z

Polling rate of once per 20 seconds seems to be too low. Increase it to 10 times per second. Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: ISS: add platform_pcibios_init

2012-10-03T22:12:08Z

Provide pcibios initialization function in case PCI is enabled in the kernel config. This allows building kernel in allmodconfig configuration. Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: ISS: add dummy serial.h for ISS platform

2012-10-03T22:12:03Z

Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: ISS: fix __simc implementation

2012-10-03T22:11:25Z

Do not rely on compiler implicitly placing function arguments into specifc registers, place them explicitly. Move __simc and related helpers to platform/simcall.h Signed-off-by: Max Filippov Signed-off-by: Chris Zankel