kernel/arch/powerpc/boot/ns16550.c, branch linux-4.3.y

[POWERPC] Xilinx: boot support for Xilinx uart 16550.

2008-04-24T18:32:46Z

The Xilinx 16550 uart core is not a standard 16550 because it uses word-based addressing rather than byte-based adressing. With additional properties it is compatible with the open firmware 'ns16550' compatible binding. This code updates the ns16550 driver to use the reg-offset property so that the Xilinx UART 16550 can be used with it. The reg-shift was already being handled. Signed-off-by: John Linn Acked-by: Grant Likely Signed-off-by: Josh Boyer

[POWERPC] Add bootwrapper function to get virtual reg from the device tree.

2008-04-17T06:01:37Z

This patch adds a new generic device tree processing function that retrieves virtual reg addresses from the device tree to the bootwrapper code. It also updates the bootwrapper code to use the new function. dt_get_virtual_reg() retrieves the virtual reg addresses from the "virtual-reg" property. If the property can't be found, it uses the "reg" property and walks the tree to translate it to absolute addresses. Signed-off-by: Laurent Pinchart Acked-by: Scott Wood Signed-off-by: Kumar Gala

[POWERPC] bootwrapper: Add dt_xlate_reg(), and use it to find serial registers.

2007-04-12T17:55:15Z

dt_xlate_reg() uses the ranges properties of a node's parentage to find the absolute physical address of the node's registers. The ns16550 driver uses this when no virtual-reg property is found. Signed-off-by: Scott Wood Signed-off-by: Paul Mackerras

[POWERPC] Add non-OF serial console support

2006-10-23T02:49:19Z

Add serial console support for non-OF systems. There is a generic serial console layer which calls a serial console driver. Included is the serial console driver for the ns16550 class of uarts. Necessary support routines are added as well. Signed-off-by: Mark A. Greer Signed-off-by: Paul Mackerras