Replace 'phys_addr_t iobase' with 'struct ftmac100 *ftmac100' in struct ftmac100_data. It allows to remove casting in a number of places.

Since priv->iobase is phys_addr_t, use phys_to_virt() to make a pointer from it.

Signed-off-by: Sergei Antonov saproj@gmail.com ---

v2 -> v3: Fix the following warning by using phys_to_virt() to get a pointer from phys_addr_t. (ae350_rv32) drivers/net/ftmac100.c:317:26: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] (ae350_rv32) 317 | priv->ftmac100 = (struct ftmac100 *)pdata->iobase;

v1 -> v2: no change

drivers/net/ftmac100.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ftmac100.c b/drivers/net/ftmac100.c index 7c89d7f67b8d..e7b9d88ea9cd 100644 --- a/drivers/net/ftmac100.c +++ b/drivers/net/ftmac100.c @@ -28,7 +28,7 @@ struct ftmac100_data { struct ftmac100_rxdes rxdes[PKTBUFSRX]; int rx_index; const char *name; - phys_addr_t iobase; + struct ftmac100 *ftmac100; };

/* @@ -36,7 +36,7 @@ struct ftmac100_data { */ static void ftmac100_reset(struct ftmac100_data *priv) { - struct ftmac100 *ftmac100 = (struct ftmac100 *)(uintptr_t)priv->iobase; + struct ftmac100 *ftmac100 = priv->ftmac100;

debug ("%s()\n", __func__);

@@ -57,7 +57,7 @@ static void ftmac100_reset(struct ftmac100_data *priv) static void ftmac100_set_mac(struct ftmac100_data *priv , const unsigned char *mac) { - struct ftmac100 *ftmac100 = (struct ftmac100 *)(uintptr_t)priv->iobase; + struct ftmac100 *ftmac100 = priv->ftmac100; unsigned int maddr = mac[0] << 8 | mac[1]; unsigned int laddr = mac[2] << 24 | mac[3] << 16 | mac[4] << 8 | mac[5];

@@ -72,7 +72,7 @@ static void ftmac100_set_mac(struct ftmac100_data *priv , */ static void _ftmac100_halt(struct ftmac100_data *priv) { - struct ftmac100 *ftmac100 = (struct ftmac100 *)(uintptr_t)priv->iobase; + struct ftmac100 *ftmac100 = priv->ftmac100; debug ("%s()\n", __func__); writel (0, &ftmac100->maccr); } @@ -82,7 +82,7 @@ static void _ftmac100_halt(struct ftmac100_data *priv) */ static int _ftmac100_init(struct ftmac100_data *priv, unsigned char enetaddr[6]) { - struct ftmac100 *ftmac100 = (struct ftmac100 *)(uintptr_t)priv->iobase; + struct ftmac100 *ftmac100 = priv->ftmac100; struct ftmac100_txdes *txdes = priv->txdes; struct ftmac100_rxdes *rxdes = priv->rxdes; unsigned int maccr; @@ -187,7 +187,7 @@ static int __ftmac100_recv(struct ftmac100_data *priv) */ static int _ftmac100_send(struct ftmac100_data *priv, void *packet, int length) { - struct ftmac100 *ftmac100 = (struct ftmac100 *)(uintptr_t)priv->iobase; + struct ftmac100 *ftmac100 = priv->ftmac100; struct ftmac100_txdes *curr_des = priv->txdes; ulong start;

@@ -314,7 +314,7 @@ static int ftmac100_of_to_plat(struct udevice *dev) struct eth_pdata *pdata = dev_get_plat(dev); const char *mac; pdata->iobase = dev_read_addr(dev); - priv->iobase = pdata->iobase; + priv->ftmac100 = phys_to_virt(pdata->iobase); mac = dtbmacaddr(0); if (mac) memcpy(pdata->enetaddr , mac , 6);

Register mii_bus with read and write callbacks to allow the 'mii' command to work. Use a timeout of 10 ms to wait for the R/W operations to complete.

Signed-off-by: Sergei Antonov saproj@gmail.com ---

v2 -> v3: no change

v1 -> v2: * fix a typo in the description * add a dependency from MII to Kconfig

drivers/net/Kconfig | 1 + drivers/net/ftmac100.c | 103 +++++++++++++++++++++++++++++++++++++++++ drivers/net/ftmac100.h | 9 ++++ 3 files changed, 113 insertions(+)

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 62d2c03849af..6006cfc82d50 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -406,6 +406,7 @@ config FSL_FM_10GEC_REGULAR_NOTATION

config FTMAC100 bool "Ftmac100 Ethernet Support" + select MII help This MAC is present in Andestech SoCs.

diff --git a/drivers/net/ftmac100.c b/drivers/net/ftmac100.c index e7b9d88ea9cd..fae3adc3de34 100644 --- a/drivers/net/ftmac100.c +++ b/drivers/net/ftmac100.c @@ -12,9 +12,13 @@ #include <env.h> #include <malloc.h> #include <net.h> +#include <phy.h> +#include <miiphy.h> +#include <dm/device_compat.h> #include <asm/global_data.h> #include <linux/delay.h> #include <linux/io.h> +#include <linux/iopoll.h>

#include "ftmac100.h" #include <dm.h> @@ -23,12 +27,16 @@ DECLARE_GLOBAL_DATA_PTR;

#define ETH_ZLEN 60

+/* Timeout for a mdio read/write operation */ +#define FTMAC100_MDIO_TIMEOUT_USEC 10000 + struct ftmac100_data { struct ftmac100_txdes txdes[1]; struct ftmac100_rxdes rxdes[PKTBUFSRX]; int rx_index; const char *name; struct ftmac100 *ftmac100; + struct mii_dev *bus; };

/* @@ -322,10 +330,104 @@ static int ftmac100_of_to_plat(struct udevice *dev) return 0; }

+/* + * struct mii_bus functions + */ +static int ftmac100_mdio_read(struct mii_dev *bus, int addr, int devad, + int reg) +{ + struct ftmac100_data *priv = bus->priv; + struct ftmac100 *ftmac100 = priv->ftmac100; + int phycr = FTMAC100_PHYCR_PHYAD(addr) | + FTMAC100_PHYCR_REGAD(reg) | + FTMAC100_PHYCR_MIIRD; + int ret; + + writel(phycr, &ftmac100->phycr); + + ret = readl_poll_timeout(&ftmac100->phycr, phycr, + !(phycr & FTMAC100_PHYCR_MIIRD), + FTMAC100_MDIO_TIMEOUT_USEC); + if (ret) + pr_err("%s: mdio read failed (addr=0x%x reg=0x%x)\n", + bus->name, addr, reg); + else + ret = phycr & FTMAC100_PHYCR_MIIRDATA; + + return ret; +} + +static int ftmac100_mdio_write(struct mii_dev *bus, int addr, int devad, + int reg, u16 value) +{ + struct ftmac100_data *priv = bus->priv; + struct ftmac100 *ftmac100 = priv->ftmac100; + int phycr = FTMAC100_PHYCR_PHYAD(addr) | + FTMAC100_PHYCR_REGAD(reg) | + FTMAC100_PHYCR_MIIWR; + int ret; + + writel(value, &ftmac100->phywdata); + writel(phycr, &ftmac100->phycr); + + ret = readl_poll_timeout(&ftmac100->phycr, phycr, + !(phycr & FTMAC100_PHYCR_MIIWR), + FTMAC100_MDIO_TIMEOUT_USEC); + if (ret) + pr_err("%s: mdio write failed (addr=0x%x reg=0x%x)\n", + bus->name, addr, reg); + + return ret; +} + +static int ftmac100_mdio_init(struct udevice *dev) +{ + struct ftmac100_data *priv = dev_get_priv(dev); + struct mii_dev *bus; + int ret; + + bus = mdio_alloc(); + if (!bus) + return -ENOMEM; + + bus->read = ftmac100_mdio_read; + bus->write = ftmac100_mdio_write; + bus->priv = priv; + + ret = mdio_register_seq(bus, dev_seq(dev)); + if (ret) { + mdio_free(bus); + return ret; + } + + priv->bus = bus; + + return 0; +} + static int ftmac100_probe(struct udevice *dev) { struct ftmac100_data *priv = dev_get_priv(dev); priv->name = dev->name; + int ret = 0; + + ret = ftmac100_mdio_init(dev); + if (ret) { + dev_err(dev, "Failed to initialize mdiobus: %d\n", ret); + goto out; + } + +out: + return ret; +} + +static int ftmac100_remove(struct udevice *dev) +{ + struct ftmac100_data *priv = dev_get_priv(dev); + + mdio_unregister(priv->bus); + mdio_free(priv->bus); + return 0; }

@@ -354,6 +456,7 @@ U_BOOT_DRIVER(ftmac100) = { .bind = ftmac100_bind, .of_to_plat = ftmac100_of_to_plat, .probe = ftmac100_probe, + .remove = ftmac100_remove, .ops = &ftmac100_ops, .priv_auto = sizeof(struct ftmac100_data), .plat_auto = sizeof(struct eth_pdata), diff --git a/drivers/net/ftmac100.h b/drivers/net/ftmac100.h index 75a49f628a69..21d339f835bf 100644 --- a/drivers/net/ftmac100.h +++ b/drivers/net/ftmac100.h @@ -92,6 +92,15 @@ struct ftmac100 { #define FTMAC100_MACCR_RX_MULTIPKT (1 << 16) #define FTMAC100_MACCR_RX_BROADPKT (1 << 17)

+/* + * PHY control register + */ +#define FTMAC100_PHYCR_MIIRDATA 0xffff +#define FTMAC100_PHYCR_PHYAD(x) (((x) & 0x1f) << 16) +#define FTMAC100_PHYCR_REGAD(x) (((x) & 0x1f) << 21) +#define FTMAC100_PHYCR_MIIWR BIT(27) +#define FTMAC100_PHYCR_MIIRD BIT(26) + /* * Transmit descriptor, aligned to 16 bytes */