aboutsummaryrefslogtreecommitdiff
path: root/drivers/of
diff options
context:
space:
mode:
authorJakub Kicinski2021-10-06 18:06:54 -0700
committerDavid S. Miller2021-10-07 13:39:51 +0100
commite330fb14590c5c80f7195c3d8c9b4bcf79e1a5cd (patch)
treeb2c5408e5de96b2ff19f086b0bacbf63572ad148 /drivers/of
parent944b33ca7bc58fc1c3d6c14702a59e925033a268 (diff)
of: net: move of_net under net/
Rob suggests to move of_net.c from under drivers/of/ somewhere to the networking code. Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/Kconfig4
-rw-r--r--drivers/of/Makefile1
-rw-r--r--drivers/of/of_net.c145
3 files changed, 0 insertions, 150 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 3dfeae8912df..80b5fd44ab1c 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -70,10 +70,6 @@ config OF_IRQ
def_bool y
depends on !SPARC && IRQ_DOMAIN
-config OF_NET
- depends on NETDEVICES
- def_bool y
-
config OF_RESERVED_MEM
def_bool OF_EARLY_FLATTREE
diff --git a/drivers/of/Makefile b/drivers/of/Makefile
index c13b982084a3..e0360a44306e 100644
--- a/drivers/of/Makefile
+++ b/drivers/of/Makefile
@@ -7,7 +7,6 @@ obj-$(CONFIG_OF_EARLY_FLATTREE) += fdt_address.o
obj-$(CONFIG_OF_PROMTREE) += pdt.o
obj-$(CONFIG_OF_ADDRESS) += address.o
obj-$(CONFIG_OF_IRQ) += irq.o
-obj-$(CONFIG_OF_NET) += of_net.o
obj-$(CONFIG_OF_UNITTEST) += unittest.o
obj-$(CONFIG_OF_RESERVED_MEM) += of_reserved_mem.o
obj-$(CONFIG_OF_RESOLVE) += resolver.o
diff --git a/drivers/of/of_net.c b/drivers/of/of_net.c
deleted file mode 100644
index dbac3a172a11..000000000000
--- a/drivers/of/of_net.c
+++ /dev/null
@@ -1,145 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * OF helpers for network devices.
- *
- * Initially copied out of arch/powerpc/kernel/prom_parse.c
- */
-#include <linux/etherdevice.h>
-#include <linux/kernel.h>
-#include <linux/of_net.h>
-#include <linux/of_platform.h>
-#include <linux/phy.h>
-#include <linux/export.h>
-#include <linux/device.h>
-#include <linux/nvmem-consumer.h>
-
-/**
- * of_get_phy_mode - Get phy mode for given device_node
- * @np: Pointer to the given device_node
- * @interface: Pointer to the result
- *
- * The function gets phy interface string from property 'phy-mode' or
- * 'phy-connection-type'. The index in phy_modes table is set in
- * interface and 0 returned. In case of error interface is set to
- * PHY_INTERFACE_MODE_NA and an errno is returned, e.g. -ENODEV.
- */
-int of_get_phy_mode(struct device_node *np, phy_interface_t *interface)
-{
- const char *pm;
- int err, i;
-
- *interface = PHY_INTERFACE_MODE_NA;
-
- err = of_property_read_string(np, "phy-mode", &pm);
- if (err < 0)
- err = of_property_read_string(np, "phy-connection-type", &pm);
- if (err < 0)
- return err;
-
- for (i = 0; i < PHY_INTERFACE_MODE_MAX; i++)
- if (!strcasecmp(pm, phy_modes(i))) {
- *interface = i;
- return 0;
- }
-
- return -ENODEV;
-}
-EXPORT_SYMBOL_GPL(of_get_phy_mode);
-
-static int of_get_mac_addr(struct device_node *np, const char *name, u8 *addr)
-{
- struct property *pp = of_find_property(np, name, NULL);
-
- if (pp && pp->length == ETH_ALEN && is_valid_ether_addr(pp->value)) {
- memcpy(addr, pp->value, ETH_ALEN);
- return 0;
- }
- return -ENODEV;
-}
-
-static int of_get_mac_addr_nvmem(struct device_node *np, u8 *addr)
-{
- struct platform_device *pdev = of_find_device_by_node(np);
- struct nvmem_cell *cell;
- const void *mac;
- size_t len;
- int ret;
-
- /* Try lookup by device first, there might be a nvmem_cell_lookup
- * associated with a given device.
- */
- if (pdev) {
- ret = nvmem_get_mac_address(&pdev->dev, addr);
- put_device(&pdev->dev);
- return ret;
- }
-
- cell = of_nvmem_cell_get(np, "mac-address");
- if (IS_ERR(cell))
- return PTR_ERR(cell);
-
- mac = nvmem_cell_read(cell, &len);
- nvmem_cell_put(cell);
-
- if (IS_ERR(mac))
- return PTR_ERR(mac);
-
- if (len != ETH_ALEN || !is_valid_ether_addr(mac)) {
- kfree(mac);
- return -EINVAL;
- }
-
- memcpy(addr, mac, ETH_ALEN);
- kfree(mac);
-
- return 0;
-}
-
-/**
- * of_get_mac_address()
- * @np: Caller's Device Node
- * @addr: Pointer to a six-byte array for the result
- *
- * Search the device tree for the best MAC address to use. 'mac-address' is
- * checked first, because that is supposed to contain to "most recent" MAC
- * address. If that isn't set, then 'local-mac-address' is checked next,
- * because that is the default address. If that isn't set, then the obsolete
- * 'address' is checked, just in case we're using an old device tree. If any
- * of the above isn't set, then try to get MAC address from nvmem cell named
- * 'mac-address'.
- *
- * Note that the 'address' property is supposed to contain a virtual address of
- * the register set, but some DTS files have redefined that property to be the
- * MAC address.
- *
- * All-zero MAC addresses are rejected, because those could be properties that
- * exist in the device tree, but were not set by U-Boot. For example, the
- * DTS could define 'mac-address' and 'local-mac-address', with zero MAC
- * addresses. Some older U-Boots only initialized 'local-mac-address'. In
- * this case, the real MAC is in 'local-mac-address', and 'mac-address' exists
- * but is all zeros.
- *
- * Return: 0 on success and errno in case of error.
-*/
-int of_get_mac_address(struct device_node *np, u8 *addr)
-{
- int ret;
-
- if (!np)
- return -ENODEV;
-
- ret = of_get_mac_addr(np, "mac-address", addr);
- if (!ret)
- return 0;
-
- ret = of_get_mac_addr(np, "local-mac-address", addr);
- if (!ret)
- return 0;
-
- ret = of_get_mac_addr(np, "address", addr);
- if (!ret)
- return 0;
-
- return of_get_mac_addr_nvmem(np, addr);
-}
-EXPORT_SYMBOL(of_get_mac_address);