[U-Boot] [RFC PATCH 6/7] net: Add network support to sandbox

[Simon Glass]

Hi Joe,

On 27 January 2015 at 16:27, Joe Hershberger <joe.hershberger at ni.com> wrote:
> Add basic network support to sandbox which includes a network driver.
>
> Signed-off-by: Joe Hershberger <joe.hershberger at ni.com>
> ---
>
>  arch/sandbox/dts/sandbox.dts |  4 ++
>  drivers/net/Makefile         |  2 +
>  drivers/net/sandbox.c        | 91 ++++++++++++++++++++++++++++++++++++++++++++
>  include/configs/sandbox.h    | 14 ++++---
>  4 files changed, 106 insertions(+), 5 deletions(-)
>  create mode 100644 drivers/net/sandbox.c
>
> diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
> index 11748ae..a1d3199 100644
> --- a/arch/sandbox/dts/sandbox.dts
> +++ b/arch/sandbox/dts/sandbox.dts
> @@ -174,4 +174,8 @@
>                 };
>         };
>
> +       eth at 10002000 {
> +               compatible = "sandbox,eth";
> +               reg = <0x10002000 0x1000>;
> +       };
>  };
> diff --git a/drivers/net/Makefile b/drivers/net/Makefile
> index 46c4ac6..2659a8a 100644
> --- a/drivers/net/Makefile
> +++ b/drivers/net/Makefile
> @@ -50,6 +50,8 @@ obj-$(CONFIG_NS8382X) += ns8382x.o
>  obj-$(CONFIG_PCNET) += pcnet.o
>  obj-$(CONFIG_RTL8139) += rtl8139.o
>  obj-$(CONFIG_RTL8169) += rtl8169.o
> +obj-$(CONFIG_ETH_SANDBOX) += sandbox.o
> +obj-$(CONFIG_ETH_SANDBOX_RAW) += sandbox-raw.o
>  obj-$(CONFIG_SH_ETHER) += sh_eth.o
>  obj-$(CONFIG_SMC91111) += smc91111.o
>  obj-$(CONFIG_SMC911X) += smc911x.o
> diff --git a/drivers/net/sandbox.c b/drivers/net/sandbox.c
> new file mode 100644
> index 0000000..e1ee69b
> --- /dev/null
> +++ b/drivers/net/sandbox.c
> @@ -0,0 +1,91 @@
> +/*
> + * Copyright (c) 2015 National Instruments
> + *
> + * (C) Copyright 2015
> + * Joe Hershberger <joe.hershberger at ni.com>
> + *
> + * SPDX-License-Identifier:    GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <dm.h>
> +#include <fdtdec.h>
> +#include <malloc.h>
> +#include <net.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +struct eth_sandbox_priv {
> +       void *device;
> +       int sd;

I'm not sure what these are for.

> +};
> +
> +int sb_eth_init(struct udevice *dev, bd_t *bis)
> +{
> +       printf("eth_sandbox: Init\n");

debug()?

> +
> +       return 0;
> +}
> +
> +int sb_eth_send(struct udevice *dev, void *packet, int length)
> +{
> +       printf("eth_sandbox: Send packet %d\n", length);
> +
> +       return 0;
> +#endif
> +}
> +
> +int sb_eth_recv(struct udevice *dev)
> +{
> +       return 0;
> +}
> +
> +void sb_eth_halt(struct udevice *dev)
> +{
> +       printf("eth_sandbox: Halt\n");
> +}
> +
> +int sb_eth_write_hwaddr(struct udevice *dev)
> +{
> +       printf("eth_sandbox: Write HW ADDR\n");
> +       return 0;
> +}
> +
> +static const struct eth_ops eth_sandbox_ops = {
> +       .init                   = sb_eth_init,
> +       .send                   = sb_eth_send,
> +       .recv                   = sb_eth_recv,
> +       .halt                   = sb_eth_halt,
> +       .write_hwaddr           = sb_eth_write_hwaddr,
> +};
> +
> +static int eth_sandbox_remove(struct udevice *dev)
> +{
> +       return 0;
> +}
> +
> +#ifdef CONFIG_OF_CONTROL
> +static int sandbox_eth_ofdata_to_platdata(struct udevice *dev)
> +{
> +       struct eth_pdata *pdata = dev->platdata;
> +
> +       pdata->iobase = fdtdec_get_addr(gd->fdt_blob, dev->of_offset, "reg");
> +       return 0;
> +}
> +
> +static const struct udevice_id sandbox_eth_ids[] = {
> +       { .compatible = "sandbox,eth" },
> +       { }
> +};
> +#endif
> +
> +U_BOOT_DRIVER(eth_sandbox) = {
> +       .name   = "eth_sandbox",
> +       .id     = UCLASS_ETH,
> +       .of_match = of_match_ptr(sandbox_eth_ids),
> +       .ofdata_to_platdata = of_match_ptr(sandbox_eth_ofdata_to_platdata),
> +       .remove = eth_sandbox_remove,
> +       .ops    = &eth_sandbox_ops,
> +       .priv_auto_alloc_size = sizeof(struct eth_sandbox_priv),
> +       .platdata_auto_alloc_size = sizeof(struct eth_pdata),
> +};
> diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h
> index 657f751..67bfc52 100644
> --- a/include/configs/sandbox.h
> +++ b/include/configs/sandbox.h
> @@ -143,9 +143,9 @@
>  /* include default commands */
>  #include <config_cmd_default.h>
>
> -/* We don't have networking support yet */
> -#undef CONFIG_CMD_NET
> -#undef CONFIG_CMD_NFS
> +#define CONFIG_DM_ETH
> +#define CONFIG_ETH_SANDBOX
> +#define CONFIG_CMD_PING
>
>  #define CONFIG_CMD_HASH
>  #define CONFIG_HASH_VERIFY
> @@ -188,12 +188,16 @@
>
>  #define CONFIG_EXTRA_ENV_SETTINGS      "stdin=serial,cros-ec-keyb\0" \
>                                         "stdout=serial,lcd\0" \
> -                                       "stderr=serial,lcd\0"
> +                                       "stderr=serial,lcd\0" \
> +                                       "ethaddr=00:00:11:22:33:44\0" \
> +                                       "ipaddr=1.2.3.4\0"
>  #else
>
>  #define CONFIG_EXTRA_ENV_SETTINGS      "stdin=serial\0" \
>                                         "stdout=serial,lcd\0" \
> -                                       "stderr=serial,lcd\0"
> +                                       "stderr=serial,lcd\0" \
> +                                       "ethaddr=00:00:11:22:33:44\0" \
> +                                       "ipaddr=1.2.3.4\0"
>  #endif
>
>  #define CONFIG_GZIP_COMPRESSED
> --
> 1.7.11.5
>

Regards,
Simon