[PATCH 7/8] ARM64: dts: amlogic: Extend GXBaby GIC node
From: andre.przywara@arm.com (André Przywara)
Date: 2016-03-01 22:59:26
Also in:
linux-devicetree, lkml
On 01/03/16 22:46, Andreas F?rber wrote:
Am 01.03.2016 um 13:43 schrieb Andre Przywara:quoted
On 01/03/16 11:18, Andreas F?rber wrote:quoted
Am 01.03.2016 um 12:01 schrieb Andre Przywara:quoted
On 29/02/16 23:44, Andreas F?rber wrote:quoted
reg = <0x0 0xc4301000 0 0x1000>, - <0x0 0xc4302000 0 0x0100>; + <0x0 0xc4302000 0 0x0100>,Please use 0x2000 for the size here. I guess this is really the GIC-400 from ARM, and in this case this is the right size, [1] is the reference here. This will enable EOI mode 1 for KVM.Will test later. Is there any easy way to find out whether or not this is that GIC-400?If you can read registers: GICD_IIDR and PIDRx have some info: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0471b/CHDIFAEE.html So if your U-Boot for instance supports md, a dump of: md.l c4301008 1 md.l c4301fd0 30 would help to identify the GIC.gxb_p200_v1#md.l c4301008 1 c4301008: 0200143b ;... gxb_p200_v1#md.l c4301fd0 30 c4301fd0: 00000004 00000000 00000000 00000000 ................ c4301fe0: 00000090 000000b4 0000002b 00000000 ........+....... c4301ff0: 0000000d 000000f0 00000005 000000b1 ................ c4302000: 00000060 000000f0 00000003 000003ff `............... c4302010: 00000000 000000ff 000003ff 00000000 ................ c4302020: 00000000 00000000 00000000 00000000 ................ c4302030: 00000000 00000000 00000000 00000000 ................ c4302040: 00000000 00000000 00000000 00000000 ................ c4302050: 00000000 00000000 00000000 00000000 ................ c4302060: 00000000 00000000 00000000 00000000 ................ c4302070: 00000000 00000000 00000000 00000000 ................ c4302080: 00000000 00000000 00000000 00000000 ................
Yes, that matches exactly the values from the GIC-400 TRM. Thanks! Andre.