Re: [RFC 3/4] MIPS: Ingenic: Initial X1000 SoC support
From: PrasannaKumar Muralidharan <hidden>
Date: 2018-03-07 15:22:32
Also in:
linux-devicetree, linux-mips, lkml
From: PrasannaKumar Muralidharan <hidden>
Date: 2018-03-07 15:22:32
Also in:
linux-devicetree, linux-mips, lkml
On 7 March 2018 at 20:40, James Hogan [off-list ref] wrote:
On Wed, Mar 07, 2018 at 08:35:00PM +0530, PrasannaKumar Muralidharan wrote:quoted
On 7 March 2018 at 20:05, James Hogan [off-list ref] wrote:quoted
On Wed, Mar 07, 2018 at 07:14:49PM +0530, PrasannaKumar Muralidharan wrote:quoted
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Does X1000 use a different PRID, or is it basically just a JZ4780 core with different SoC peripherals?Yes X1000 does have a different PRID (PRID = 0x2ed1024f). X1000 hasRight, so thats 0x2e000000 | PRID_COMP_INGENIC_D1 | PRID_IMP_JZRISC | 0x4f, which cpu-probe.c already handles (apparently the D1 company code is used for JZ4770 & JZ4775 too).Okay. Does this mean I need not modify get_board_mach_type() and get_system_type()?You still need to modify them, otherwise it won't understand "ingenic,x1000" compatible string, and will call it a JZ4740 in /proc/cpuinfo.
Oh okay. Will make the changes.
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I used to get my code tested from Domink but I could not reach him for quite some time. Before buying the development board myself I would like to see if anyone can help me in testing. Do you have any contact with Ingenic who can help in testing this?Not personally, but I'll ask around. Of course if nobody much cares about it in practice and nobody has the hardware, there may be little value in supporting it upstream.Seems Jiaxun is interested in the board and is willing to help.Okay, cool. Cheers James