+++ /dev/null
-From 4d5621372f6e7ddbfd5879602f82073987bcc722 Mon Sep 17 00:00:00 2001
-From: Russell King <rmk+kernel@arm.linux.org.uk>
-Date: Sun, 20 Sep 2015 09:57:10 +0100
-Subject: [PATCH 709/744] phy: move fixed_phy MII register generation to a
- library
-
-Move the fixed_phy MII register generation to a library to allow other
-software phy implementations to use this code.
-
-Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
----
- drivers/net/phy/Kconfig | 4 ++
- drivers/net/phy/Makefile | 3 +-
- drivers/net/phy/fixed_phy.c | 95 ++-------------------------------
- drivers/net/phy/swphy.c | 126 ++++++++++++++++++++++++++++++++++++++++++++
- drivers/net/phy/swphy.h | 8 +++
- 5 files changed, 143 insertions(+), 93 deletions(-)
- create mode 100644 drivers/net/phy/swphy.c
- create mode 100644 drivers/net/phy/swphy.h
-
---- a/drivers/net/phy/Kconfig
-+++ b/drivers/net/phy/Kconfig
-@@ -26,6 +26,9 @@ config SWCONFIG_LEDS
- bool "Switch LED trigger support"
- depends on (SWCONFIG && LEDS_TRIGGERS)
-
-+config SWPHY
-+ bool
-+
- comment "MII PHY device drivers"
-
- config AQUANTIA_PHY
-@@ -205,6 +208,7 @@ config RTL8306_PHY
- config FIXED_PHY
- tristate "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
- depends on PHYLIB
-+ select SWPHY
- ---help---
- Adds the platform "fixed" MDIO Bus to cover the boards that use
- PHYs that are not connected to the real MDIO bus.
---- a/drivers/net/phy/Makefile
-+++ b/drivers/net/phy/Makefile
-@@ -1,6 +1,7 @@
- # Makefile for Linux PHY drivers
-
--libphy-objs := phy.o phy_device.o mdio_bus.o
-+libphy-y := phy.o phy_device.o mdio_bus.o
-+libphy-$(CONFIG_SWPHY) += swphy.o
-
- obj-$(CONFIG_MDIO_BOARDINFO) += mdio-boardinfo.o
-
---- a/drivers/net/phy/fixed_phy.c
-+++ b/drivers/net/phy/fixed_phy.c
-@@ -24,6 +24,8 @@
- #include <linux/of.h>
- #include <linux/gpio.h>
-
-+#include "swphy.h"
-+
- #define MII_REGS_NUM 29
-
- struct fixed_mdio_bus {
-@@ -49,101 +51,10 @@ static struct fixed_mdio_bus platform_fm
-
- static int fixed_phy_update_regs(struct fixed_phy *fp)
- {
-- u16 bmsr = BMSR_ANEGCAPABLE;
-- u16 bmcr = 0;
-- u16 lpagb = 0;
-- u16 lpa = 0;
--
- if (gpio_is_valid(fp->link_gpio))
- fp->status.link = !!gpio_get_value_cansleep(fp->link_gpio);
-
-- if (fp->status.duplex) {
-- switch (fp->status.speed) {
-- case 1000:
-- bmsr |= BMSR_ESTATEN;
-- break;
-- case 100:
-- bmsr |= BMSR_100FULL;
-- break;
-- case 10:
-- bmsr |= BMSR_10FULL;
-- break;
-- default:
-- break;
-- }
-- } else {
-- switch (fp->status.speed) {
-- case 1000:
-- bmsr |= BMSR_ESTATEN;
-- break;
-- case 100:
-- bmsr |= BMSR_100HALF;
-- break;
-- case 10:
-- bmsr |= BMSR_10HALF;
-- break;
-- default:
-- break;
-- }
-- }
--
-- if (fp->status.link) {
-- bmsr |= BMSR_LSTATUS | BMSR_ANEGCOMPLETE;
--
-- if (fp->status.duplex) {
-- bmcr |= BMCR_FULLDPLX;
--
-- switch (fp->status.speed) {
-- case 1000:
-- bmcr |= BMCR_SPEED1000;
-- lpagb |= LPA_1000FULL;
-- break;
-- case 100:
-- bmcr |= BMCR_SPEED100;
-- lpa |= LPA_100FULL;
-- break;
-- case 10:
-- lpa |= LPA_10FULL;
-- break;
-- default:
-- pr_warn("fixed phy: unknown speed\n");
-- return -EINVAL;
-- }
-- } else {
-- switch (fp->status.speed) {
-- case 1000:
-- bmcr |= BMCR_SPEED1000;
-- lpagb |= LPA_1000HALF;
-- break;
-- case 100:
-- bmcr |= BMCR_SPEED100;
-- lpa |= LPA_100HALF;
-- break;
-- case 10:
-- lpa |= LPA_10HALF;
-- break;
-- default:
-- pr_warn("fixed phy: unknown speed\n");
-- return -EINVAL;
-- }
-- }
--
-- if (fp->status.pause)
-- lpa |= LPA_PAUSE_CAP;
--
-- if (fp->status.asym_pause)
-- lpa |= LPA_PAUSE_ASYM;
-- }
--
-- fp->regs[MII_PHYSID1] = 0;
-- fp->regs[MII_PHYSID2] = 0;
--
-- fp->regs[MII_BMSR] = bmsr;
-- fp->regs[MII_BMCR] = bmcr;
-- fp->regs[MII_LPA] = lpa;
-- fp->regs[MII_STAT1000] = lpagb;
--
-- return 0;
-+ return swphy_update_regs(fp->regs, &fp->status);
- }
-
- static int fixed_mdio_read(struct mii_bus *bus, int phy_addr, int reg_num)
---- /dev/null
-+++ b/drivers/net/phy/swphy.c
-@@ -0,0 +1,126 @@
-+/*
-+ * Software PHY emulation
-+ *
-+ * Code taken from fixed_phy.c by Russell King <rmk+kernel@arm.linux.org.uk>
-+ *
-+ * Author: Vitaly Bordug <vbordug@ru.mvista.com>
-+ * Anton Vorontsov <avorontsov@ru.mvista.com>
-+ *
-+ * Copyright (c) 2006-2007 MontaVista Software, Inc.
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License as published by the
-+ * Free Software Foundation; either version 2 of the License, or (at your
-+ * option) any later version.
-+ */
-+#include <linux/export.h>
-+#include <linux/mii.h>
-+#include <linux/phy.h>
-+#include <linux/phy_fixed.h>
-+
-+#include "swphy.h"
-+
-+/**
-+ * swphy_update_regs - update MII register array with fixed phy state
-+ * @regs: array of 32 registers to update
-+ * @state: fixed phy status
-+ *
-+ * Update the array of MII registers with the fixed phy link, speed,
-+ * duplex and pause mode settings.
-+ */
-+int swphy_update_regs(u16 *regs, const struct fixed_phy_status *state)
-+{
-+ u16 bmsr = BMSR_ANEGCAPABLE;
-+ u16 bmcr = 0;
-+ u16 lpagb = 0;
-+ u16 lpa = 0;
-+
-+ if (state->duplex) {
-+ switch (state->speed) {
-+ case 1000:
-+ bmsr |= BMSR_ESTATEN;
-+ break;
-+ case 100:
-+ bmsr |= BMSR_100FULL;
-+ break;
-+ case 10:
-+ bmsr |= BMSR_10FULL;
-+ break;
-+ default:
-+ break;
-+ }
-+ } else {
-+ switch (state->speed) {
-+ case 1000:
-+ bmsr |= BMSR_ESTATEN;
-+ break;
-+ case 100:
-+ bmsr |= BMSR_100HALF;
-+ break;
-+ case 10:
-+ bmsr |= BMSR_10HALF;
-+ break;
-+ default:
-+ break;
-+ }
-+ }
-+
-+ if (state->link) {
-+ bmsr |= BMSR_LSTATUS | BMSR_ANEGCOMPLETE;
-+
-+ if (state->duplex) {
-+ bmcr |= BMCR_FULLDPLX;
-+
-+ switch (state->speed) {
-+ case 1000:
-+ bmcr |= BMCR_SPEED1000;
-+ lpagb |= LPA_1000FULL;
-+ break;
-+ case 100:
-+ bmcr |= BMCR_SPEED100;
-+ lpa |= LPA_100FULL;
-+ break;
-+ case 10:
-+ lpa |= LPA_10FULL;
-+ break;
-+ default:
-+ pr_warn("swphy: unknown speed\n");
-+ return -EINVAL;
-+ }
-+ } else {
-+ switch (state->speed) {
-+ case 1000:
-+ bmcr |= BMCR_SPEED1000;
-+ lpagb |= LPA_1000HALF;
-+ break;
-+ case 100:
-+ bmcr |= BMCR_SPEED100;
-+ lpa |= LPA_100HALF;
-+ break;
-+ case 10:
-+ lpa |= LPA_10HALF;
-+ break;
-+ default:
-+ pr_warn("swphy: unknown speed\n");
-+ return -EINVAL;
-+ }
-+ }
-+
-+ if (state->pause)
-+ lpa |= LPA_PAUSE_CAP;
-+
-+ if (state->asym_pause)
-+ lpa |= LPA_PAUSE_ASYM;
-+ }
-+
-+ regs[MII_PHYSID1] = 0;
-+ regs[MII_PHYSID2] = 0;
-+
-+ regs[MII_BMSR] = bmsr;
-+ regs[MII_BMCR] = bmcr;
-+ regs[MII_LPA] = lpa;
-+ regs[MII_STAT1000] = lpagb;
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL_GPL(swphy_update_regs);
---- /dev/null
-+++ b/drivers/net/phy/swphy.h
-@@ -0,0 +1,8 @@
-+#ifndef SWPHY_H
-+#define SWPHY_H
-+
-+struct fixed_phy_status;
-+
-+int swphy_update_regs(u16 *regs, const struct fixed_phy_status *state);
-+
-+#endif
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