Commit Graph

14 Commits

Author SHA1 Message Date
Russell King
ad902cb9e2 [ARM] iop: add missing parens in macro
Fix:

 drivers/serial/8250.c:1837: warning: suggest parentheses around arithmetic in operand of |

due to a macro argument being used without required parenthesis.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-05 11:59:13 +01:00
Dan Williams
e90ddd813d [ARM] 4348/4: iop3xx: Give Linux control over PCI initialization
Currently the iop3xx platform support code assumes that RedBoot is the
bootloader and has already initialized the ATU.  Linux should handle this
initialization for three reasons:

1/ The memory map that RedBoot sets up is not optimal (page_to_dma and
virt_to_phys return different addresses).  The effect of this is that using
the dma mapping API for the internal bus dma units generates pci bus
addresses that are incorrect for the internal bus.

2/ Not all iop platforms use RedBoot

3/ If the ATU is already initialized it indicates that the iop is an add-in
card in another host, it does not own the PCI bus, and should not be
re-initialized.

Changelog:
* rather than change nr_controllers to zero, simply do not call
  pci_common_init

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-03 14:02:48 +01:00
Dan Williams
3668b45d46 [ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx
* architecture specific details are handled in asm/arch/time.h
* ARCH_IOP13XX now selects PLAT_IOP
* as suggested by Lennert use ifdef CONFIG_XSCALE to skip the cp_wait on
XSC3

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-17 15:05:40 +00:00
Dan Williams
4434c5c7fd [ARM] 4186/1: iop: remove cp6_enable/disable routines
This functionality is replaced by cp6_trap

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-17 15:04:53 +00:00
Dan Williams
588ef76935 [ARM] 4184/1: iop: cp6 access handler (undef_hook)
Enable svc access to cp6 via an undefined instruction hook.  Do not enable
access for usr code.

This patch also makes iop13xx select PLAT_IOP, this requires a small change
to drivers/i2c/busses/i2c-iop3xx.c.

Per Lennert Buytenhek's note, the cp6 trap routine is moved to arch/arm/plat-iop
Per Nicolas Pitre's note, the cp_wait is skipped since the latency to
return to the faulting function is longer than cp_wait.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-14 15:21:24 +00:00
Dan Williams
6df26700c0 [ARM] 4182/1: iop3xx: fix the ioremap implementation to not remap static ranges
Implement a custom ioremap implementation for iop3xx. This saves
establishing new mappings. It also cleans up the PCI IO resource to be a
physical address rather than a virtual address as Russell pointed out on
the original iop13xx port.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-14 15:21:21 +00:00
Dan Williams
4ac941d2d0 [ARM] 4082/1: iop3xx: fix iop33x gpio register offset
iop33x gpio offset is correct in include/asm-arm/arch-iop33x/iop33x.h, but
include/asm-arm/hardware/iop3xx.h adds 4.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-01-06 12:43:59 +00:00
Lennert Buytenhek
475549faa1 [ARM] 3831/1: iop3xx: factor out common register defines
Factor out the register defines for a number of other peripherals
common to the iop32x and iop33x.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:52 +01:00
Lennert Buytenhek
72edd84a6b [ARM] 3827/1: iop3xx: add common gpio module
Implement the gpio_line_{config,get,set} API for iop3xx.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:47 +01:00
Lennert Buytenhek
0b29de4a6a [ARM] 3824/1: iop3xx: add cp6 enable/disable macros
Add macros to enable and disable access to CP6.  On the iop3xx, enabling
CP6 access unfortunately also enables access to that coprocessor from
unprivileged code, so we need these macros to enable and disable access
to the coprocessor whenever we need to access it.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:44 +01:00
Lennert Buytenhek
48388b2a56 [ARM] 3822/1: iop3xx: rewrite time handling
Merge and rewrite the iop32x/iop33x time code to do lost jiffy
tracking properly, and put the result in plat-iop/time.c.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:42 +01:00
Lennert Buytenhek
0cb015f9de [ARM] 3820/1: iop3xx: factor out shared pci code
Merge the iop32x PCI code and iop33x PCI code into plat-iop/pci.c.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:39 +01:00
Lennert Buytenhek
e25d64f124 [ARM] 3819/1: iop3xx: factor out shared i2c code
Move the i2c bits shared between iop32x and iop33x to plat-iop/i2c.c
and include/asm-arm/hardware/iop3xx.h.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:38 +01:00
Lennert Buytenhek
7ae1f7ec52 [ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code
Introduce the arch/arm/plat-iop directory, for code shared between the
iop32x and iop33x, and move the common memory map setup bits there.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:37 +01:00