[U-Boot] MPC8377: SerDes config

[U-Boot] MPC8377: SerDes config

[Andre Schwarz]

All,

I'm a little confused how to setup SerDes properly on MPC8377, i.e. 
which function uses which port ...

I'd expect the following :

- SATA Ports 1+2 used on SerDes 1
- PCIe Ports 3+4 (2 times x1) on SerDes 2

This is what I've done :

CONFIG_SYS_SCCR_PCIEXP1CM = 0 (disabled)
CONFIG_SYS_SCCR_PCIEXP2CM = 2
CONFIG_SYS_SCCR_SATACM = 0xA0 (Port 1+2 used / 3+4 disabled)

Still both SerDes are active :

#define CONFIG_FSL_SERDES
#define CONFIG_FSL_SERDES1      0xe3000
#define CONFIG_FSL_SERDES2      0xe3100


PCIe only gets one LAW @ CONFIG_SYS_PCIE2_BASE


Board init code calls

     fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SATA,
                    FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
     fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_PEX,
                    FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V)


Is this supposed to be correct or have I swapped something ?
Is it save to disable PEX-1 ?



-- 

Regards,
Andre



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