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Patch from Lennert Buytenhek This patch: - changes the ixp2000_reg_write accessor to take a 'volatile void *' instead of a 'volatile unsigned long *', which then allows passing in a u32 * as first argument without being greeted with a warning; and - adds an ixp2000_reg_read accessor. We can then use these accessors in ixp2000 code to access on-chip peripherals, instead of directly dereferencing pointers. This is for use by the ixp2000 microengine driver which was recently announced on netdev. We can't use readl/writel on the ixp2000 since it is usually run in big-endian mode, and on big-endian platforms, readl/writel perform byteswapping. A future patch will remove the readback from ixp2000_reg_write, since it's not needed to prevent erratum #66, and add manual readbacks to the places that need them (writes are not synchronous since we map in device space using XCB=101 nowadays), such as interrupt disabling and GPIO manipulation. See also: http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2005-February/027084.html Patch has been ACKed by Jeff Garzik. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
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| .. | ||
| debug-macro.S | ||
| dma.h | ||
| enp2611.h | ||
| entry-macro.S | ||
| gpio.h | ||
| hardware.h | ||
| io.h | ||
| irq.h | ||
| irqs.h | ||
| ixdp2x00.h | ||
| ixdp2x01.h | ||
| ixp2000-regs.h | ||
| memory.h | ||
| param.h | ||
| platform.h | ||
| system.h | ||
| timex.h | ||
| uncompress.h | ||
| vmalloc.h | ||