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net: lantiq: Add Lantiq / Intel VRX200 Ethernet driver

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This drives the PMAC between the GSWIP Switch and the CPU in the VRX200
SoC. This is currently only the very basic version of the Ethernet
driver.

When the DMA channel is activated we receive some packets which were
send to the SoC while it was still in U-Boot, these packets have the
wrong header. Resetting the IP cores did not work so we read out the
extra packets at the beginning and discard them.

This also adapts the clock code in sysctrl.c to use the default name of
the device node so that the driver gets the correct clock. sysctrl.c
should be replaced with a proper common clock driver later.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hauke Mehrtens
2018-09-09 22:16:45 +02:00
committed by David S. Miller
parent 839790e88a
commit fe1a56420c
5 changed files with 576 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
MAINTAINERS
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@@ -8172,6 +8172,7 @@ M: Hauke Mehrtens <hauke@hauke-m.de>
L: netdev@vger.kernel.org
S: Maintained
F: net/dsa/tag_gswip.c
F: drivers/net/ethernet/lantiq_xrx200.c
LANTIQ MIPS ARCHITECTURE
M: John Crispin <john@phrozen.org>

6
arch/mips/lantiq/xway/sysctrl.c
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@@ -505,7 +505,7 @@ void __init ltq_soc_init(void)
clkdev_add_pmu("1a800000.pcie", "msi", 1, 1, PMU1_PCIE2_MSI);
clkdev_add_pmu("1a800000.pcie", "pdi", 1, 1, PMU1_PCIE2_PDI);
clkdev_add_pmu("1a800000.pcie", "ctl", 1, 1, PMU1_PCIE2_CTL);
clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH | PMU_PPE_DP);
clkdev_add_pmu("1e10b308.eth", NULL, 0, 0, PMU_SWITCH | PMU_PPE_DP);
clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
} else if (of_machine_is_compatible("lantiq,ar10")) {
@@ -513,7 +513,7 @@ void __init ltq_soc_init(void)
ltq_ar10_fpi_hz(), ltq_ar10_pp32_hz());
clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH |
clkdev_add_pmu("1e10b308.eth", NULL, 0, 0, PMU_SWITCH |
PMU_PPE_DP | PMU_PPE_TC);
clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
clkdev_add_pmu("1f203020.gphy", NULL, 1, 0, PMU_GPHY);
@@ -536,7 +536,7 @@ void __init ltq_soc_init(void)
clkdev_add_pmu(NULL, "ahb", 1, 0, PMU_AHBM | PMU_AHBS);
clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
clkdev_add_pmu("1e108000.eth", NULL, 0, 0,
clkdev_add_pmu("1e10b308.eth", NULL, 0, 0,
PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
PMU_PPE_QSB | PMU_PPE_TOP);

7
drivers/net/ethernet/Kconfig
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@@ -108,6 +108,13 @@ config LANTIQ_ETOP
---help---
Support for the MII0 inside the Lantiq SoC
config LANTIQ_XRX200
tristate "Lantiq / Intel xRX200 PMAC network driver"
depends on SOC_TYPE_XWAY
---help---
Support for the PMAC of the Gigabit switch (GSWIP) inside the
Lantiq / Intel VRX200 VDSL SoC
source "drivers/net/ethernet/marvell/Kconfig"
source "drivers/net/ethernet/mediatek/Kconfig"
source "drivers/net/ethernet/mellanox/Kconfig"

1
drivers/net/ethernet/Makefile
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@@ -49,6 +49,7 @@ obj-$(CONFIG_NET_VENDOR_XSCALE) += xscale/
obj-$(CONFIG_JME) += jme.o
obj-$(CONFIG_KORINA) += korina.o
obj-$(CONFIG_LANTIQ_ETOP) += lantiq_etop.o
obj-$(CONFIG_LANTIQ_XRX200) += lantiq_xrx200.o
obj-$(CONFIG_NET_VENDOR_MARVELL) += marvell/
obj-$(CONFIG_NET_VENDOR_MEDIATEK) += mediatek/
obj-$(CONFIG_NET_VENDOR_MELLANOX) += mellanox/

564
drivers/net/ethernet/lantiq_xrx200.c Normal file
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