hard coded value for idcode field in struct cpu_table
From: Sławomir Cygan <hidden>
Date: 2011-03-05 13:50:58
On Thu, Mar 3, 2011 at 2:49 PM, Madhavi Manchala [off-list ref] wrote:
Dear All, I do not understand the value of idcode field in the struct cpu_table i.e. the value is hard coded. I did not find that value in the user manuals also. The code is available at linux/arch/arm/plat-s3c24xx/cpu.c file. Currently, I am implementing code for Samsung S3C2510A processor which is not available in the current sources. Where can I find the idcode value for Samsung S3C2510A processor? Any ideas will be appreciated. Thanks and ?Regards, Madhavi M.
Hi, This field is defined for example in this datasheed: http://www.alldatasheet.com/datasheet-pdf/pdf/84872/SAMSUNG/S3C2410A.html PDF page 282: GENERAL STATUS REGISTER (GSTATUSn) Register Address R/W Description Reset Value GSTATUS0 0x560000AC R External pin status Undefined
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GSTATUS1 0x560000B0 R Chip ID 0x32410000 <<<
GSTATUS2 0x560000B4 R/W Reset status 0x1 GSTATUS3 0x560000B8 R/W Infrom register 0x0 GSTATUS4 0x560000BC R/W Infrom register 0x0 This is "GSTATUS1" register initial value I don't think that S3c25 are so similar to S3c25, so they provide exactly the same method of chip identification. -- Pozdrawiam, S?awomir Cygan