Re: [RFC 3/4] MIPS: Ingenic: Initial X1000 SoC support
From: PrasannaKumar Muralidharan <hidden>
Date: 2018-03-07 15:05:07
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linux-clk, linux-mips, lkml
Hi James, On 7 March 2018 at 20:05, James Hogan [off-list ref] wrote:
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()?
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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. I have been told that Ingenic is focusing on IoT market and X1000 is intended for IoT segment. I think that they would be selling several 100Ks of chip over the coming years. But I feel Ingenic spends time only on maintaining their Linux port which is usually based on very old kernel version.
Cheers James
Thanks and regards, PrasannaKumar