Introduce ETH_SANDBOX_LWIP which enables a mock driver similar to ETH_SANDOX but without the dependencies on the legacy network stack (NET) so that it may be enabled when the lwIP stack (NET_LWIP) is introduced. The driver does nothing at this stage but its presence will allow dm_test_iommu_noiommu [1] to pass.
[1] ./u-boot -T -c "ut dm dm_test_iommu_noiommu"
Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- drivers/net/Kconfig | 11 +++++ drivers/net/Makefile | 1 + drivers/net/sandbox-lwip.c | 85 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 97 insertions(+) create mode 100644 drivers/net/sandbox-lwip.c
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index e7d0ddfe25a..2f39ec05ac7 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -350,6 +350,17 @@ config ETH_SANDBOX
This driver is particularly useful in the test/dm/eth.c tests
+config ETH_SANDBOX_LWIP + depends on SANDBOX + depends on NET_LWIP + default y + bool "Sandbox: Mocked Ethernet driver (for NET_LWIP)" + help + This driver is meant as a replacement for ETH_SANDBOX when + the network stack is NET_LWIP rather than NET. It currently + does nothing, i.e. it drops the sent packets and never receives + data. + config ETH_SANDBOX_RAW depends on SANDBOX default y diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 4946a63f80f..f5ab1f5dedf 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -39,6 +39,7 @@ obj-$(CONFIG_ETH_DESIGNWARE_SOCFPGA) += dwmac_socfpga.o obj-$(CONFIG_ETH_SANDBOX) += sandbox.o obj-$(CONFIG_ETH_SANDBOX_RAW) += sandbox-raw-bus.o obj-$(CONFIG_ETH_SANDBOX_RAW) += sandbox-raw.o +obj-$(CONFIG_ETH_SANDBOX_LWIP) += sandbox-lwip.o obj-$(CONFIG_FEC_MXC) += fec_mxc.o obj-$(CONFIG_FMAN_ENET) += fm/ obj-$(CONFIG_FMAN_ENET) += fsl_mdio.o diff --git a/drivers/net/sandbox-lwip.c b/drivers/net/sandbox-lwip.c new file mode 100644 index 00000000000..3721033c310 --- /dev/null +++ b/drivers/net/sandbox-lwip.c @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2015 National Instruments + * + * (C) Copyright 2015 + * Joe Hershberger joe.hershberger@ni.com + */ + +#include <dm.h> +#include <log.h> +#include <malloc.h> +#include <net.h> +#include <asm/eth.h> +#include <asm/global_data.h> +#include <asm/test.h> + +DECLARE_GLOBAL_DATA_PTR; + +static int sb_lwip_eth_start(struct udevice *dev) +{ + debug("eth_sandbox_lwip: Start\n"); + + return 0; +} + +static int sb_lwip_eth_send(struct udevice *dev, void *packet, int length) +{ + debug("eth_sandbox_lwip: Send packet %d\n", length); + + return -ENOTSUPP; +} + +static int sb_lwip_eth_recv(struct udevice *dev, int flags, uchar **packetp) +{ + return -EAGAIN; +} + +static int sb_lwip_eth_free_pkt(struct udevice *dev, uchar *packet, int length) +{ + return 0; +} + +static void sb_lwip_eth_stop(struct udevice *dev) +{ +} + +static int sb_lwip_eth_write_hwaddr(struct udevice *dev) +{ + return 0; +} + +static const struct eth_ops sb_eth_ops = { + .start = sb_lwip_eth_start, + .send = sb_lwip_eth_send, + .recv = sb_lwip_eth_recv, + .free_pkt = sb_lwip_eth_free_pkt, + .stop = sb_lwip_eth_stop, + .write_hwaddr = sb_lwip_eth_write_hwaddr, +}; + +static int sb_lwip_eth_remove(struct udevice *dev) +{ + return 0; +} + +static int sb_lwip_eth_of_to_plat(struct udevice *dev) +{ + return 0; +} + +static const struct udevice_id sb_eth_ids[] = { + { .compatible = "sandbox,eth" }, + { } +}; + +U_BOOT_DRIVER(eth_sandbox) = { + .name = "eth_lwip_sandbox", + .id = UCLASS_ETH, + .of_match = sb_eth_ids, + .of_to_plat = sb_lwip_eth_of_to_plat, + .remove = sb_lwip_eth_remove, + .ops = &sb_eth_ops, + .priv_auto = 0, + .plat_auto = sizeof(struct eth_pdata), +};