diff options
Diffstat (limited to 'target/linux/mvebu/patches-4.4/123-phy-generate-swphy-registers-on-the-fly.patch')
| -rw-r--r-- | target/linux/mvebu/patches-4.4/123-phy-generate-swphy-registers-on-the-fly.patch | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/target/linux/mvebu/patches-4.4/123-phy-generate-swphy-registers-on-the-fly.patch b/target/linux/mvebu/patches-4.4/123-phy-generate-swphy-registers-on-the-fly.patch deleted file mode 100644 index 218b902e7d..0000000000 --- a/target/linux/mvebu/patches-4.4/123-phy-generate-swphy-registers-on-the-fly.patch +++ /dev/null @@ -1,204 +0,0 @@ -From e0f33a88243329da1aa5a90fe10ab25c9fb0a091 Mon Sep 17 00:00:00 2001 -From: Russell King <rmk+kernel@arm.linux.org.uk> -Date: Sun, 20 Sep 2015 11:28:39 +0100 -Subject: [PATCH 712/744] phy: generate swphy registers on the fly - -Generate software phy registers as and when requested, rather than -duplicating the state in fixed_phy. This allows us to eliminate -the duplicate storage of of the same data, which is only different -in format. - -As fixed_phy_update_regs() no longer updates register state, rename -it to fixed_phy_update(). - -Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> -Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> ---- - drivers/net/phy/fixed_phy.c | 31 +++++------------------------- - drivers/net/phy/swphy.c | 47 ++++++++++++++++++++++++++++++++------------- - drivers/net/phy/swphy.h | 2 +- - 3 files changed, 40 insertions(+), 40 deletions(-) - ---- a/drivers/net/phy/fixed_phy.c -+++ b/drivers/net/phy/fixed_phy.c -@@ -26,8 +26,6 @@ - - #include "swphy.h" - --#define MII_REGS_NUM 29 -- - struct fixed_mdio_bus { - int irqs[PHY_MAX_ADDR]; - struct mii_bus *mii_bus; -@@ -36,7 +34,6 @@ struct fixed_mdio_bus { - - struct fixed_phy { - int addr; -- u16 regs[MII_REGS_NUM]; - struct phy_device *phydev; - struct fixed_phy_status status; - int (*link_update)(struct net_device *, struct fixed_phy_status *); -@@ -49,12 +46,10 @@ static struct fixed_mdio_bus platform_fm - .phys = LIST_HEAD_INIT(platform_fmb.phys), - }; - --static void fixed_phy_update_regs(struct fixed_phy *fp) -+static void fixed_phy_update(struct fixed_phy *fp) - { - if (gpio_is_valid(fp->link_gpio)) - fp->status.link = !!gpio_get_value_cansleep(fp->link_gpio); -- -- swphy_update_regs(fp->regs, &fp->status); - } - - static int fixed_mdio_read(struct mii_bus *bus, int phy_addr, int reg_num) -@@ -62,29 +57,15 @@ static int fixed_mdio_read(struct mii_bu - struct fixed_mdio_bus *fmb = bus->priv; - struct fixed_phy *fp; - -- if (reg_num >= MII_REGS_NUM) -- return -1; -- -- /* We do not support emulating Clause 45 over Clause 22 register reads -- * return an error instead of bogus data. -- */ -- switch (reg_num) { -- case MII_MMD_CTRL: -- case MII_MMD_DATA: -- return -1; -- default: -- break; -- } -- - list_for_each_entry(fp, &fmb->phys, node) { - if (fp->addr == phy_addr) { - /* Issue callback if user registered it. */ - if (fp->link_update) { - fp->link_update(fp->phydev->attached_dev, - &fp->status); -- fixed_phy_update_regs(fp); -+ fixed_phy_update(fp); - } -- return fp->regs[reg_num]; -+ return swphy_read_reg(reg_num, &fp->status); - } - } - -@@ -144,7 +125,7 @@ int fixed_phy_update_state(struct phy_de - _UPD(pause); - _UPD(asym_pause); - #undef _UPD -- fixed_phy_update_regs(fp); -+ fixed_phy_update(fp); - return 0; - } - } -@@ -169,8 +150,6 @@ int fixed_phy_add(unsigned int irq, int - if (!fp) - return -ENOMEM; - -- memset(fp->regs, 0xFF, sizeof(fp->regs[0]) * MII_REGS_NUM); -- - fmb->irqs[phy_addr] = irq; - - fp->addr = phy_addr; -@@ -184,7 +163,7 @@ int fixed_phy_add(unsigned int irq, int - goto err_regs; - } - -- fixed_phy_update_regs(fp); -+ fixed_phy_update(fp); - - list_add_tail(&fp->node, &fmb->phys); - ---- a/drivers/net/phy/swphy.c -+++ b/drivers/net/phy/swphy.c -@@ -20,6 +20,8 @@ - - #include "swphy.h" - -+#define MII_REGS_NUM 29 -+ - struct swmii_regs { - u16 bmcr; - u16 bmsr; -@@ -110,14 +112,13 @@ int swphy_validate_state(const struct fi - EXPORT_SYMBOL_GPL(swphy_validate_state); - - /** -- * swphy_update_regs - update MII register array with fixed phy state -- * @regs: array of 32 registers to update -+ * swphy_read_reg - return a MII register from the fixed phy state -+ * @reg: MII register - * @state: fixed phy status - * -- * Update the array of MII registers with the fixed phy link, speed, -- * duplex and pause mode settings. -+ * Return the MII @reg register generated from the fixed phy state @state. - */ --void swphy_update_regs(u16 *regs, const struct fixed_phy_status *state) -+int swphy_read_reg(int reg, const struct fixed_phy_status *state) - { - int speed_index, duplex_index; - u16 bmsr = BMSR_ANEGCAPABLE; -@@ -125,9 +126,12 @@ void swphy_update_regs(u16 *regs, const - u16 lpagb = 0; - u16 lpa = 0; - -+ if (reg > MII_REGS_NUM) -+ return -1; -+ - speed_index = swphy_decode_speed(state->speed); - if (WARN_ON(speed_index < 0)) -- return; -+ return 0; - - duplex_index = state->duplex ? SWMII_DUPLEX_FULL : SWMII_DUPLEX_HALF; - -@@ -147,12 +151,29 @@ void swphy_update_regs(u16 *regs, const - lpa |= LPA_PAUSE_ASYM; - } - -- regs[MII_PHYSID1] = 0; -- regs[MII_PHYSID2] = 0; -+ switch (reg) { -+ case MII_BMCR: -+ return bmcr; -+ case MII_BMSR: -+ return bmsr; -+ case MII_PHYSID1: -+ case MII_PHYSID2: -+ return 0; -+ case MII_LPA: -+ return lpa; -+ case MII_STAT1000: -+ return lpagb; -+ -+ /* -+ * We do not support emulating Clause 45 over Clause 22 register -+ * reads. Return an error instead of bogus data. -+ */ -+ case MII_MMD_CTRL: -+ case MII_MMD_DATA: -+ return -1; - -- regs[MII_BMSR] = bmsr; -- regs[MII_BMCR] = bmcr; -- regs[MII_LPA] = lpa; -- regs[MII_STAT1000] = lpagb; -+ default: -+ return 0xffff; -+ } - } --EXPORT_SYMBOL_GPL(swphy_update_regs); -+EXPORT_SYMBOL_GPL(swphy_read_reg); ---- a/drivers/net/phy/swphy.h -+++ b/drivers/net/phy/swphy.h -@@ -4,6 +4,6 @@ - struct fixed_phy_status; - - int swphy_validate_state(const struct fixed_phy_status *state); --void swphy_update_regs(u16 *regs, const struct fixed_phy_status *state); -+int swphy_read_reg(int reg, const struct fixed_phy_status *state); - - #endif |