of: net: move of_net under net/

[ Upstream commit e330fb14590c5c80f7195c3d8c9b4bcf79e1a5cd ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

8 files changed, 6 insertions, 156 deletions

diff --git a/drivers/net/ethernet/amd/Kconfig b/drivers/net/ethernet/amd/Kconfig
index 4786f0504691..899c8a2a34b6 100644
--- a/drivers/net/ethernet/amd/Kconfig
+++ b/drivers/net/ethernet/amd/Kconfig
@@ -168,7 +168,7 @@ config SUNLANCE
 
 config AMD_XGBE
 	tristate "AMD 10GbE Ethernet driver"
-	depends on ((OF_NET && OF_ADDRESS) || ACPI || PCI) && HAS_IOMEM
+	depends on (OF_ADDRESS || ACPI || PCI) && HAS_IOMEM
 	depends on X86 || ARM64 || COMPILE_TEST
 	depends on PTP_1588_CLOCK_OPTIONAL
 	select BITREVERSE
diff --git a/drivers/net/ethernet/arc/Kconfig b/drivers/net/ethernet/arc/Kconfig
index 92a79c4ffa2c..0a67612af228 100644
--- a/drivers/net/ethernet/arc/Kconfig
+++ b/drivers/net/ethernet/arc/Kconfig
@@ -26,7 +26,7 @@ config ARC_EMAC_CORE
 config ARC_EMAC
 	tristate "ARC EMAC support"
 	select ARC_EMAC_CORE
-	depends on OF_IRQ && OF_NET
+	depends on OF_IRQ
 	depends on ARC || COMPILE_TEST
 	help
 	  On some legacy ARC (Synopsys) FPGA boards such as ARCAngel4/ML50x
@@ -36,7 +36,7 @@ config ARC_EMAC
 config EMAC_ROCKCHIP
 	tristate "Rockchip EMAC support"
 	select ARC_EMAC_CORE
-	depends on OF_IRQ && OF_NET && REGULATOR
+	depends on OF_IRQ && REGULATOR
 	depends on ARCH_ROCKCHIP || COMPILE_TEST
 	help
 	  Support for Rockchip RK3036/RK3066/RK3188 EMAC ethernet controllers.
diff --git a/drivers/net/ethernet/ezchip/Kconfig b/drivers/net/ethernet/ezchip/Kconfig
index 38aa824efb25..9241b9b1c7a3 100644
--- a/drivers/net/ethernet/ezchip/Kconfig
+++ b/drivers/net/ethernet/ezchip/Kconfig
@@ -18,7 +18,7 @@ if NET_VENDOR_EZCHIP
 
 config EZCHIP_NPS_MANAGEMENT_ENET
 	tristate "EZchip NPS management enet support"
-	depends on OF_IRQ && OF_NET
+	depends on OF_IRQ
 	depends on HAS_IOMEM
 	help
 	  Simple LAN device for debug or management purposes.
diff --git a/drivers/net/ethernet/litex/Kconfig b/drivers/net/ethernet/litex/Kconfig
index 63bf01d28f0c..f99adbf26ab4 100644
--- a/drivers/net/ethernet/litex/Kconfig
+++ b/drivers/net/ethernet/litex/Kconfig
@@ -17,7 +17,7 @@ if NET_VENDOR_LITEX
 
 config LITEX_LITEETH
 	tristate "LiteX Ethernet support"
-	depends on OF_NET
+	depends on OF
 	help
 	  If you wish to compile a kernel for hardware with a LiteX LiteEth
 	  device then you should answer Y to this.
diff --git a/drivers/net/ethernet/mscc/Kconfig b/drivers/net/ethernet/mscc/Kconfig
index b6a73d151dec..8dd8c7f425d2 100644
--- a/drivers/net/ethernet/mscc/Kconfig
+++ b/drivers/net/ethernet/mscc/Kconfig
@@ -28,7 +28,7 @@ config MSCC_OCELOT_SWITCH
 	depends on BRIDGE || BRIDGE=n
 	depends on NET_SWITCHDEV
 	depends on HAS_IOMEM
-	depends on OF_NET
+	depends on OF
 	select MSCC_OCELOT_SWITCH_LIB
 	select GENERIC_PHY
 	help
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);