Gh0st
/
linux
mirror of https://github.com/torvalds/linux.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

net: airoha: Make flow control source port mapping dependent on nbq parameter 

Flow control source port mapping for USB serdes needs to be configured
according to the GDM port nbq parameter. This is a preliminary patch
since nbq parameter is specific for the given port serdes and needs to
be read from the DTS (in the current codebase is assigned statically).

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260306-airoha-fix-loopback-for-usb-serdes-v2-1-319de9c96826@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Lorenzo Bianconi 2026-03-06 09:07:27 +01:00 committed by Jakub Kicinski
parent 014c607f86
commit bf3471e6e6
2 changed files with 7 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/ethernet/airoha/airoha_eth.c
View File

@ -1729,10 +1729,12 @@ static int airhoha_set_gdm2_loopback(struct airoha_gdm_port *port)
SP_CPORT_MASK(val),
__field_prep(SP_CPORT_MASK(val), FE_PSE_PORT_CDM2));
if (port->id != AIROHA_GDM3_IDX && airoha_is_7581(eth))
airoha_fe_rmw(eth, REG_SRC_PORT_FC_MAP6,
FC_ID_OF_SRC_PORT24_MASK,
FIELD_PREP(FC_ID_OF_SRC_PORT24_MASK, 2));
if (port->id == AIROHA_GDM4_IDX && airoha_is_7581(eth)) {
u32 mask = FC_ID_OF_SRC_PORT_MASK(nbq);
airoha_fe_rmw(eth, REG_SRC_PORT_FC_MAP6, mask,
__field_prep(mask, AIROHA_GDM2_IDX));
}
return 0;
}

5
drivers/net/ethernet/airoha/airoha_regs.h
View File

@ -376,10 +376,7 @@
#define SP_CPORT_MASK(_n) GENMASK(3 + ((_n) << 2), ((_n) << 2))
#define REG_SRC_PORT_FC_MAP6 0x2298
#define FC_ID_OF_SRC_PORT27_MASK GENMASK(28, 24)
#define FC_ID_OF_SRC_PORT26_MASK GENMASK(20, 16)
#define FC_ID_OF_SRC_PORT25_MASK GENMASK(12, 8)
#define FC_ID_OF_SRC_PORT24_MASK GENMASK(4, 0)
#define FC_ID_OF_SRC_PORT_MASK(_n) GENMASK(4 + ((_n) << 3), ((_n) << 3))
#define REG_CDM5_RX_OQ1_DROP_CNT 0x29d4