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2011-07-22OpenRISC: MiscellaneousJonas Bonn2-0/+116
Adds README file, TODO list, and a couple of other pieces that didn't seem to fit into any other patch. Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: HeadersJonas Bonn1-0/+12
Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: TrapsJonas Bonn1-0/+366
Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: Module supportJonas Bonn1-0/+72
Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: Scheduling/Process managementJonas Bonn1-0/+311
Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: Idle/Power managementJonas Bonn1-0/+77
Minimal functionality... Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: System callsJonas Bonn2-0/+85
The OpenRISC Linux kernel conforms to the "generic" syscall interface which contains only the reduced set of syscalls deemed necessary for new architectures. Unfortunately, the uClibc port for OpenRISC does not fully support this reduced set; as such, an additional patch available out-of-tree needs to be applied to the kernel in order to use the current uClibc. This is just a temporary measure until the libc port can be straightened out; it is likely that OpenRISC will make the transition to glibc shortly where the generic syscall interface is better supported. Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: IRQJonas Bonn1-0/+172
This patch adds support for the OpenRISC PIC. Signed-off-by: Jonas Bonn <[email protected]> Cc: [email protected] Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: TimekeepingJonas Bonn1-0/+181
Implements support for the OpenRISC timer which is a 28 bit cycle counter that can be read out of a special purpose register. This counter is used as a both a clock event and clocksource device. Signed-off-by: Jonas Bonn <[email protected]> Cc: [email protected] Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: DMAJonas Bonn1-0/+191
Simple DMA implementation. Allows for allocation of coherent memory (simply uncached) for DMA operations. Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: PTraceJonas Bonn1-0/+211
This patch implements minimal PTrace support. The pt_regs structure is not exported to userspace for OpenRISC; rather, the GETREGSET mechanism is intended to be used and the registers, as such, exported in the core dump format which is ABI stable. This is in line with what is intended for new architectures as of 2.6.34 and has the advantage of permitting the layout of the registers on the kernel stack (as per pt_regs) to be freely modified. Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: Build infrastructureJonas Bonn2-0/+129
Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: Signal handlingJonas Bonn1-0/+396
Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: Device treeJonas Bonn1-0/+108
The OpenRISC architecture uses the device tree infrastructure for the platform description. This is currently limited to having a device tree built into the kernel, but work is underway within the OpenRISC project to define how this device tree blob should be passed into the kernel from an external resource. Patch contains a single example DTS file to go with the defconfig for or1ksim. Signed-off-by: Jonas Bonn <[email protected]> Cc: [email protected] Reviewed-by: Arnd Bergmann <[email protected]>
2011-07-22OpenRISC: Boot codeJonas Bonn4-0/+3157
Architecture code and early setup routines for booting Linux. Signed-off-by: Jonas Bonn <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>