On 01/12/2016 05:09, Shawn Lin wrote: > On 2016/11/28 23:44, Mason wrote: > >> Shawn Lin, could you take a look below and tell me exactly >> which IP core(s) Rockchip is using in its SoCs? > > From the Host Controller version register (0xfe) > bit[7:0]: 0x2 : specification version number is 3.00 > bit[15:8]: 0x10: Vendor version number is 1.0 > > Command Queueing version register (0x200) > bit[11:8]: 0x5 eMMC Major version number > bit[7:4]: 0x1 eMMC manor version number > bit[3:0]: 0x0 eMMC version suffix > > User guide "eMMC 5.1/SD3.0/SDIO3.0 Host Controller" > Revision number: 1.14 > Released on Dec. 2014 Wow! Yet another HW revision I wasn't aware of :-) For the record, I think the 0x200 register was introduced fairly recently, as it's not documented in any of the user guides I have access to. To summarize the situation, Arasan has made (at least) the following versions of the HW block: SD_2.0_SDIO_2.0__MMC_3.31_Host_Controller SD_3.0_SDIO_3.0_eMMC_4.4__Host_Controller SD_3.0_SDIO_3.0_eMMC_4.41_Host_Controller SD_3.0_SDIO_3.0_eMMC_4.5__Host_Controller SD_3.0_SDIO_3.0_eMMC_4.51_Host_Controller SD_3.0_SDIO_3.0_eMMC_5.1__Host Controller SD_4.1_SDIO_4.1_eMMC_4.51_Host_Controller SD_4.1_SDIO_4.1_eMMC_5.1__Host_Controller Xilinx = "arasan,sdhci-8.9a" compat string SD2.0 / SDIO2.0 / MMC3.31 (in Zynq) SD3.0 / SDIO3.0 / eMMC4.51 (in ZynqMP) Vendor version 0x89 (Zynq, from 8.9a) and 0x10 (ZynqMP) Sigma = no compat string yet SD3.0 / SDIO3.0 / eMMC4.4 (in SMP87xx) Vendor version 0x99 (not related to document revision) APM = "arasan,sdhci-4.9a" SD3.0 / SDIO3.0 / eMMC4.41 Vendor version unknown Rockchip = "arasan,sdhci-5.1" SD3.0 / SDIO3.0 / eMMC 5.1 Vendor version 0x10 Conclusion, it doesn't look like the "Vendor version" field contains dependable information, considering the duplicate 0x10 in different HW revisions. Regards. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
