brain-hackers_pepepper-mirror/u-boot-brain
1
0
Fork 0
mirror of https://github.com/brain-hackers/u-boot-brain synced 2024-06-09 23:36:03 +09:00
Code Issues Projects Releases Wiki Activity

armv8: fsl-layerscape: reorder rgmii dpmacs' enablement

Browse Source 
some dpmacs in armv8a based freescale layerscape SOCs can be
configured via both serdes(sgmii, xfi, xlaui etc) bits and via
EC*_PMUX(rgmii) bits in RCW.
e.g. dpmac 17 and 18 in LX2160A can be configured as SGMII from
serdes bits and as RGMII via EC1_PMUX/EC2_PMUX bits
Now if a dpmac is enabled by serdes bits then it takes precedence
over EC*_PMUX bits. i.e. in LX2160A if we select serdes protocol
that configures dpmac17 as SGMII and set the EC1_PMUX as RGMII,
then the dpmac is SGMII and not RGMII.

Therefore, move the fsl_rgmii_init after fsl_serdes_init. in
fsl_rgmii_init function of SOC, we will check if the dpmac is enabled
or not? if it is (fsl_serdes_init has already enabled the dpmac), then
don't enable it.

Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
This commit is contained in:
Pankaj Bansal 2018-10-29 11:28:26 +00:00 committed by Prabhakar Kushwaha
parent 8c4875395b
commit 2e53759dc6
1 changed files with 18 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
arch/arm/cpu/armv8/fsl-layerscape/cpu.c
View File

@ -1099,15 +1099,29 @@ int arch_early_init_r(void)
printf("Did not wake secondary cores\n");
}
#ifdef CONFIG_SYS_FSL_HAS_RGMII
fsl_rgmii_init();
#endif
config_core_prefetch();
#ifdef CONFIG_SYS_HAS_SERDES
fsl_serdes_init();
#endif
#ifdef CONFIG_SYS_FSL_HAS_RGMII
/* some dpmacs in armv8a based freescale layerscape SOCs can be
* configured via both serdes(sgmii, xfi, xlaui etc) bits and via
* EC*_PMUX(rgmii) bits in RCW.
* e.g. dpmac 17 and 18 in LX2160A can be configured as SGMII from
* serdes bits and as RGMII via EC1_PMUX/EC2_PMUX bits
* Now if a dpmac is enabled by serdes bits then it takes precedence
* over EC*_PMUX bits. i.e. in LX2160A if we select serdes protocol
* that configures dpmac17 as SGMII and set the EC1_PMUX as RGMII,
* then the dpmac is SGMII and not RGMII.
*
* Therefore, move the fsl_rgmii_init after fsl_serdes_init. in
* fsl_rgmii_init function of SOC, we will check if the dpmac is enabled
* or not? if it is (fsl_serdes_init has already enabled the dpmac),
* then don't enable it.
*/
fsl_rgmii_init();
#endif
#ifdef CONFIG_FMAN_ENET
fman_enet_init();
#endif