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linux_dsm_epyc7002/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c

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net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
/*
* Driver for (BCM4706)? GBit MAC core on BCMA bus.
*
* Copyright (C) 2012 Rafał Miłecki <zajec5@gmail.com>
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/bcma/bcma.h>
#include <linux/brcmphy.h>
#include "bgmac.h"
static bool bcma_mdio_wait_value(struct bcma_device *core, u16 reg, u32 mask,
u32 value, int timeout)
{
u32 val;
int i;
for (i = 0; i < timeout / 10; i++) {
val = bcma_read32(core, reg);
if ((val & mask) == value)
return true;
udelay(10);
}
dev_err(&core->dev, "Timeout waiting for reg 0x%X\n", reg);
return false;
}
/**************************************************
* PHY ops
**************************************************/
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
static u16 bcma_mdio_phy_read(struct bgmac *bgmac, u8 phyaddr, u8 reg)
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
{
struct bcma_device *core;
u16 phy_access_addr;
u16 phy_ctl_addr;
u32 tmp;
BUILD_BUG_ON(BGMAC_PA_DATA_MASK != BCMA_GMAC_CMN_PA_DATA_MASK);
BUILD_BUG_ON(BGMAC_PA_ADDR_MASK != BCMA_GMAC_CMN_PA_ADDR_MASK);
BUILD_BUG_ON(BGMAC_PA_ADDR_SHIFT != BCMA_GMAC_CMN_PA_ADDR_SHIFT);
BUILD_BUG_ON(BGMAC_PA_REG_MASK != BCMA_GMAC_CMN_PA_REG_MASK);
BUILD_BUG_ON(BGMAC_PA_REG_SHIFT != BCMA_GMAC_CMN_PA_REG_SHIFT);
BUILD_BUG_ON(BGMAC_PA_WRITE != BCMA_GMAC_CMN_PA_WRITE);
BUILD_BUG_ON(BGMAC_PA_START != BCMA_GMAC_CMN_PA_START);
BUILD_BUG_ON(BGMAC_PC_EPA_MASK != BCMA_GMAC_CMN_PC_EPA_MASK);
BUILD_BUG_ON(BGMAC_PC_MCT_MASK != BCMA_GMAC_CMN_PC_MCT_MASK);
BUILD_BUG_ON(BGMAC_PC_MCT_SHIFT != BCMA_GMAC_CMN_PC_MCT_SHIFT);
BUILD_BUG_ON(BGMAC_PC_MTE != BCMA_GMAC_CMN_PC_MTE);
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
if (bgmac->bcma.core->id.id == BCMA_CORE_4706_MAC_GBIT) {
core = bgmac->bcma.core->bus->drv_gmac_cmn.core;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
phy_access_addr = BCMA_GMAC_CMN_PHY_ACCESS;
phy_ctl_addr = BCMA_GMAC_CMN_PHY_CTL;
} else {
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
core = bgmac->bcma.core;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
phy_access_addr = BGMAC_PHY_ACCESS;
phy_ctl_addr = BGMAC_PHY_CNTL;
}
tmp = bcma_read32(core, phy_ctl_addr);
tmp &= ~BGMAC_PC_EPA_MASK;
tmp |= phyaddr;
bcma_write32(core, phy_ctl_addr, tmp);
tmp = BGMAC_PA_START;
tmp |= phyaddr << BGMAC_PA_ADDR_SHIFT;
tmp |= reg << BGMAC_PA_REG_SHIFT;
bcma_write32(core, phy_access_addr, tmp);
if (!bcma_mdio_wait_value(core, phy_access_addr, BGMAC_PA_START, 0,
1000)) {
dev_err(&core->dev, "Reading PHY %d register 0x%X failed\n",
phyaddr, reg);
return 0xffff;
}
return bcma_read32(core, phy_access_addr) & BGMAC_PA_DATA_MASK;
}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphywr */
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
static int bcma_mdio_phy_write(struct bgmac *bgmac, u8 phyaddr, u8 reg,
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
u16 value)
{
struct bcma_device *core;
u16 phy_access_addr;
u16 phy_ctl_addr;
u32 tmp;
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
if (bgmac->bcma.core->id.id == BCMA_CORE_4706_MAC_GBIT) {
core = bgmac->bcma.core->bus->drv_gmac_cmn.core;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
phy_access_addr = BCMA_GMAC_CMN_PHY_ACCESS;
phy_ctl_addr = BCMA_GMAC_CMN_PHY_CTL;
} else {
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
core = bgmac->bcma.core;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
phy_access_addr = BGMAC_PHY_ACCESS;
phy_ctl_addr = BGMAC_PHY_CNTL;
}
tmp = bcma_read32(core, phy_ctl_addr);
tmp &= ~BGMAC_PC_EPA_MASK;
tmp |= phyaddr;
bcma_write32(core, phy_ctl_addr, tmp);
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
bcma_write32(bgmac->bcma.core, BGMAC_INT_STATUS, BGMAC_IS_MDIO);
if (bcma_read32(bgmac->bcma.core, BGMAC_INT_STATUS) & BGMAC_IS_MDIO)
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
dev_warn(&core->dev, "Error setting MDIO int\n");
tmp = BGMAC_PA_START;
tmp |= BGMAC_PA_WRITE;
tmp |= phyaddr << BGMAC_PA_ADDR_SHIFT;
tmp |= reg << BGMAC_PA_REG_SHIFT;
tmp |= value;
bcma_write32(core, phy_access_addr, tmp);
if (!bcma_mdio_wait_value(core, phy_access_addr, BGMAC_PA_START, 0,
1000)) {
dev_err(&core->dev, "Writing to PHY %d register 0x%X failed\n",
phyaddr, reg);
return -ETIMEDOUT;
}
return 0;
}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphyinit */
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
static void bcma_mdio_phy_init(struct bgmac *bgmac)
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
{
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
struct bcma_chipinfo *ci = &bgmac->bcma.core->bus->chipinfo;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
u8 i;
net: bgmac: use PHY subsystem for initializing PHY This adds support for using bgmac with PHYs supported by standalone PHY drivers. Having any PHY initialization in bgmac is hacky and shouldn't be extended but rather removed if anyone has hardware to test it. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:56 +07:00
/* For some legacy hardware we do chipset-based PHY initialization here
* without even detecting PHY ID. It's hacky and should be cleaned as
* soon as someone can test it.
*/
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
if (ci->id == BCMA_CHIP_ID_BCM5356) {
for (i = 0; i < 5; i++) {
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
bcma_mdio_phy_write(bgmac, i, 0x1f, 0x008b);
bcma_mdio_phy_write(bgmac, i, 0x15, 0x0100);
bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000f);
bcma_mdio_phy_write(bgmac, i, 0x12, 0x2aaa);
bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000b);
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
}
net: bgmac: use PHY subsystem for initializing PHY This adds support for using bgmac with PHYs supported by standalone PHY drivers. Having any PHY initialization in bgmac is hacky and shouldn't be extended but rather removed if anyone has hardware to test it. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:56 +07:00
return;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
}
if ((ci->id == BCMA_CHIP_ID_BCM5357 && ci->pkg != 10) ||
(ci->id == BCMA_CHIP_ID_BCM4749 && ci->pkg != 10) ||
(ci->id == BCMA_CHIP_ID_BCM53572 && ci->pkg != 9)) {
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
bcma_chipco_chipctl_maskset(cc, 2, ~0xc0000000, 0);
bcma_chipco_chipctl_maskset(cc, 4, ~0x80000000, 0);
for (i = 0; i < 5; i++) {
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000f);
bcma_mdio_phy_write(bgmac, i, 0x16, 0x5284);
bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000b);
bcma_mdio_phy_write(bgmac, i, 0x17, 0x0010);
bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000f);
bcma_mdio_phy_write(bgmac, i, 0x16, 0x5296);
bcma_mdio_phy_write(bgmac, i, 0x17, 0x1073);
bcma_mdio_phy_write(bgmac, i, 0x17, 0x9073);
bcma_mdio_phy_write(bgmac, i, 0x16, 0x52b6);
bcma_mdio_phy_write(bgmac, i, 0x17, 0x9273);
bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000b);
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
}
net: bgmac: use PHY subsystem for initializing PHY This adds support for using bgmac with PHYs supported by standalone PHY drivers. Having any PHY initialization in bgmac is hacky and shouldn't be extended but rather removed if anyone has hardware to test it. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:56 +07:00
return;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
}
net: bgmac: use PHY subsystem for initializing PHY This adds support for using bgmac with PHYs supported by standalone PHY drivers. Having any PHY initialization in bgmac is hacky and shouldn't be extended but rather removed if anyone has hardware to test it. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:56 +07:00
/* For all other hw do initialization using PHY subsystem. */
if (bgmac->net_dev && bgmac->net_dev->phydev)
phy_init_hw(bgmac->net_dev->phydev);
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphyreset */
static int bcma_mdio_phy_reset(struct mii_bus *bus)
{
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
struct bgmac *bgmac = bus->priv;
u8 phyaddr = bgmac->phyaddr;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
if (phyaddr == BGMAC_PHY_NOREGS)
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
return 0;
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
bcma_mdio_phy_write(bgmac, phyaddr, MII_BMCR, BMCR_RESET);
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
udelay(100);
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
if (bcma_mdio_phy_read(bgmac, phyaddr, MII_BMCR) & BMCR_RESET)
dev_err(bgmac->dev, "PHY reset failed\n");
bcma_mdio_phy_init(bgmac);
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
return 0;
}
/**************************************************
* MII
**************************************************/
static int bcma_mdio_mii_read(struct mii_bus *bus, int mii_id, int regnum)
{
return bcma_mdio_phy_read(bus->priv, mii_id, regnum);
}
static int bcma_mdio_mii_write(struct mii_bus *bus, int mii_id, int regnum,
u16 value)
{
return bcma_mdio_phy_write(bus->priv, mii_id, regnum, value);
}
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
struct mii_bus *bcma_mdio_mii_register(struct bgmac *bgmac)
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
{
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
struct bcma_device *core = bgmac->bcma.core;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
struct mii_bus *mii_bus;
int err;
mii_bus = mdiobus_alloc();
if (!mii_bus) {
err = -ENOMEM;
goto err;
}
mii_bus->name = "bcma_mdio mii bus";
sprintf(mii_bus->id, "%s-%d-%d", "bcma_mdio", core->bus->num,
core->core_unit);
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
mii_bus->priv = bgmac;
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
mii_bus->read = bcma_mdio_mii_read;
mii_bus->write = bcma_mdio_mii_write;
mii_bus->reset = bcma_mdio_phy_reset;
mii_bus->parent = &core->dev;
net: bgmac: drop struct bcma_mdio we don't need anymore Adding struct bcma_mdio was a workaround for bcma code not having access to the struct bgmac used in the core code. Now we don't duplicate this struct we can just use it internally in bcma code. This simplifies code & allows access to all bgmac driver details from all places in bcma code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01 01:37:55 +07:00
mii_bus->phy_mask = ~(1 << bgmac->phyaddr);
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
err = mdiobus_register(mii_bus);
if (err) {
dev_err(&core->dev, "Registration of mii bus failed\n");
goto err_free_bus;
}
return mii_bus;
err_free_bus:
mdiobus_free(mii_bus);
err:
return ERR_PTR(err);
}
net: ethernet: bgmac: Add platform device support The bcma portion of the driver has been split off into a bcma specific driver. This has been mirrored for the platform driver. The last references to the bcma core struct have been changed into a generic function call. These function calls are wrappers to either the original bcma code or new platform functions that access the same areas via MMIO. This necessitated adding function pointers for both platform and bcma to hide which backend is being used from the generic bgmac code. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:57 +07:00
EXPORT_SYMBOL_GPL(bcma_mdio_mii_register);
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
void bcma_mdio_mii_unregister(struct mii_bus *mii_bus)
{
if (!mii_bus)
return;
mdiobus_unregister(mii_bus);
mdiobus_free(mii_bus);
}
net: ethernet: bgmac: Add platform device support The bcma portion of the driver has been split off into a bcma specific driver. This has been mirrored for the platform driver. The last references to the bcma core struct have been changed into a generic function call. These function calls are wrappers to either the original bcma code or new platform functions that access the same areas via MMIO. This necessitated adding function pointers for both platform and bcma to hide which backend is being used from the generic bgmac code. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:57 +07:00
EXPORT_SYMBOL_GPL(bcma_mdio_mii_unregister);
net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file Move the BCMA MDIO phy into a separate file, as it is very tightly coupled with the BCMA bus. This will help with the upcoming BCMA removal from the bgmac driver. Optimally, this should be moved into phy drivers, but it is too tightly coupled with the bgmac driver to effectively move it without more changes to the driver. Note: the phy_reset was intentionally removed, as the mdio phy subsystem automatically resets the phy if a reset function pointer is present. In addition to the moving of the driver, this reset function is added. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 06:08:55 +07:00
MODULE_AUTHOR("Rafał Miłecki");
MODULE_LICENSE("GPL");
Reference in New Issue Copy Permalink