xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: bgmac: support Ethernet core on BCM53573 SoCs

Browse Source 
BCM53573 is a new series of Broadcom's SoCs. It's based on ARM and can
be found in two packages (versions): BCM53573 and BCM47189. It shares
some code with the Northstar family, but also requires some new quirks.

First of all there can be up to 2 Ethernet cores on this SoC. If that is
the case, they are connected to two different switch ports allowing some
more complex/optimized setups. It seems the second unit doesn't come
fully configured and requires some IRQ quirk.

Other than that only the first core is connected to the PHY. For the
second one we have to register fixed PHY (similarly to the Northstar),
otherwise generic PHY driver would get some invalid info.

This has been successfully tested on Tenda AC9 (BCM47189B0).

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rafał Miłecki
2016-08-17 23:00:30 +02:00
committed by David S. Miller
parent 6b2a314f72
commit 1cb94db3d1
5 changed files with 66 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/net/ethernet/broadcom/bgmac.c
View File

@@ -940,6 +940,27 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
bgmac_cco_ctl_maskset(bgmac, 1, ~(BGMAC_CHIPCTL_1_IF_TYPE_MASK |
BGMAC_CHIPCTL_1_SW_TYPE_MASK),
sw_type);
} else if (bgmac->feature_flags & BGMAC_FEAT_CC4_IF_SW_TYPE) {
u32 sw_type = BGMAC_CHIPCTL_4_IF_TYPE_MII |
BGMAC_CHIPCTL_4_SW_TYPE_EPHY;
u8 et_swtype = 0;
char buf[4];
if (bcm47xx_nvram_getenv("et_swtype", buf, sizeof(buf)) > 0) {
if (kstrtou8(buf, 0, &et_swtype))
dev_err(bgmac->dev, "Failed to parse et_swtype (%s)\n",
buf);
sw_type = (et_swtype & 0x0f) << 12;
} else if (bgmac->feature_flags & BGMAC_FEAT_CC4_IF_SW_TYPE_RGMII) {
sw_type = BGMAC_CHIPCTL_4_IF_TYPE_RGMII |
BGMAC_CHIPCTL_4_SW_TYPE_RGMII;
}
bgmac_cco_ctl_maskset(bgmac, 4, ~(BGMAC_CHIPCTL_4_IF_TYPE_MASK |
BGMAC_CHIPCTL_4_SW_TYPE_MASK),
sw_type);
} else if (bgmac->feature_flags & BGMAC_FEAT_CC7_IF_TYPE_RGMII) {
bgmac_cco_ctl_maskset(bgmac, 7, ~BGMAC_CHIPCTL_7_IF_TYPE_MASK,
BGMAC_CHIPCTL_7_IF_TYPE_RGMII);
}
if (iost & BGMAC_BCMA_IOST_ATTACHED && !bgmac->has_robosw)
@@ -1467,6 +1488,10 @@ int bgmac_enet_probe(struct bgmac *info)
*/
bgmac_clk_enable(bgmac, 0);
/* This seems to be fixing IRQ by assigning OOB #6 to the core */
if (bgmac->feature_flags & BGMAC_FEAT_IRQ_ID_OOB_6)
bgmac_idm_write(bgmac, BCMA_OOB_SEL_OUT_A30, 0x86);
bgmac_chip_reset(bgmac);
err = bgmac_dma_alloc(bgmac);