power: pmic/regulator allow dm be omitted by SPL

[people/ms/u-boot.git] / drivers / net / smc911x.h

/*
 * SMSC LAN9[12]1[567] Network driver
 *
 * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

#ifndef _SMC911X_H_
#define _SMC911X_H_

#include <linux/types.h>

#define DRIVERNAME "smc911x"

#if defined (CONFIG_SMC911X_32_BIT) && \
        defined (CONFIG_SMC911X_16_BIT)
#error "SMC911X: Only one of CONFIG_SMC911X_32_BIT and \
        CONFIG_SMC911X_16_BIT shall be set"
#endif

#if defined (CONFIG_SMC911X_32_BIT)
static inline u32 __smc911x_reg_read(struct eth_device *dev, u32 offset)
{
        return *(volatile u32*)(dev->iobase + offset);
}
u32 smc911x_reg_read(struct eth_device *dev, u32 offset)
        __attribute__((weak, alias("__smc911x_reg_read")));

static inline void __smc911x_reg_write(struct eth_device *dev,
                                        u32 offset, u32 val)
{
        *(volatile u32*)(dev->iobase + offset) = val;
}
void smc911x_reg_write(struct eth_device *dev, u32 offset, u32 val)
        __attribute__((weak, alias("__smc911x_reg_write")));
#elif defined (CONFIG_SMC911X_16_BIT)
static inline u32 smc911x_reg_read(struct eth_device *dev, u32 offset)
{
        volatile u16 *addr_16 = (u16 *)(dev->iobase + offset);
        return ((*addr_16 & 0x0000ffff) | (*(addr_16 + 1) << 16));
}
static inline void smc911x_reg_write(struct eth_device *dev,
                                        u32 offset, u32 val)
{
        *(volatile u16 *)(dev->iobase + offset) = (u16)val;
        *(volatile u16 *)(dev->iobase + offset + 2) = (u16)(val >> 16);
}
#else
#error "SMC911X: undefined bus width"
#endif /* CONFIG_SMC911X_16_BIT */

/* Below are the register offsets and bit definitions
 * of the Lan911x memory space
 */
#define RX_DATA_FIFO                            0x00

#define TX_DATA_FIFO                            0x20
#define TX_CMD_A_INT_ON_COMP                    0x80000000
#define TX_CMD_A_INT_BUF_END_ALGN               0x03000000
#define TX_CMD_A_INT_4_BYTE_ALGN                0x00000000
#define TX_CMD_A_INT_16_BYTE_ALGN               0x01000000
#define TX_CMD_A_INT_32_BYTE_ALGN               0x02000000
#define TX_CMD_A_INT_DATA_OFFSET                0x001F0000
#define TX_CMD_A_INT_FIRST_SEG                  0x00002000
#define TX_CMD_A_INT_LAST_SEG                   0x00001000
#define TX_CMD_A_BUF_SIZE                       0x000007FF
#define TX_CMD_B_PKT_TAG                        0xFFFF0000
#define TX_CMD_B_ADD_CRC_DISABLE                0x00002000
#define TX_CMD_B_DISABLE_PADDING                0x00001000
#define TX_CMD_B_PKT_BYTE_LENGTH                0x000007FF

#define RX_STATUS_FIFO                          0x40
#define RX_STS_PKT_LEN                          0x3FFF0000
#define RX_STS_ES                               0x00008000
#define RX_STS_BCST                             0x00002000
#define RX_STS_LEN_ERR                          0x00001000
#define RX_STS_RUNT_ERR                         0x00000800
#define RX_STS_MCAST                            0x00000400
#define RX_STS_TOO_LONG                         0x00000080
#define RX_STS_COLL                             0x00000040
#define RX_STS_ETH_TYPE                         0x00000020
#define RX_STS_WDOG_TMT                         0x00000010
#define RX_STS_MII_ERR                          0x00000008
#define RX_STS_DRIBBLING                        0x00000004
#define RX_STS_CRC_ERR                          0x00000002
#define RX_STATUS_FIFO_PEEK                     0x44
#define TX_STATUS_FIFO                          0x48
#define TX_STS_TAG                              0xFFFF0000
#define TX_STS_ES                               0x00008000
#define TX_STS_LOC                              0x00000800
#define TX_STS_NO_CARR                          0x00000400
#define TX_STS_LATE_COLL                        0x00000200
#define TX_STS_MANY_COLL                        0x00000100
#define TX_STS_COLL_CNT                         0x00000078
#define TX_STS_MANY_DEFER                       0x00000004
#define TX_STS_UNDERRUN                         0x00000002
#define TX_STS_DEFERRED                         0x00000001
#define TX_STATUS_FIFO_PEEK                     0x4C
#define ID_REV                                  0x50
#define ID_REV_CHIP_ID                          0xFFFF0000  /* RO */
#define ID_REV_REV_ID                           0x0000FFFF  /* RO */

#define INT_CFG                                 0x54
#define INT_CFG_INT_DEAS                        0xFF000000  /* R/W */
#define INT_CFG_INT_DEAS_CLR                    0x00004000
#define INT_CFG_INT_DEAS_STS                    0x00002000
#define INT_CFG_IRQ_INT                         0x00001000  /* RO */
#define INT_CFG_IRQ_EN                          0x00000100  /* R/W */
                                        /* R/W Not Affected by SW Reset */
#define INT_CFG_IRQ_POL                         0x00000010
                                        /* R/W Not Affected by SW Reset */
#define INT_CFG_IRQ_TYPE                        0x00000001

#define INT_STS                                 0x58
#define INT_STS_SW_INT                          0x80000000  /* R/WC */
#define INT_STS_TXSTOP_INT                      0x02000000  /* R/WC */
#define INT_STS_RXSTOP_INT                      0x01000000  /* R/WC */
#define INT_STS_RXDFH_INT                       0x00800000  /* R/WC */
#define INT_STS_RXDF_INT                        0x00400000  /* R/WC */
#define INT_STS_TX_IOC                          0x00200000  /* R/WC */
#define INT_STS_RXD_INT                         0x00100000  /* R/WC */
#define INT_STS_GPT_INT                         0x00080000  /* R/WC */
#define INT_STS_PHY_INT                         0x00040000  /* RO */
#define INT_STS_PME_INT                         0x00020000  /* R/WC */
#define INT_STS_TXSO                            0x00010000  /* R/WC */
#define INT_STS_RWT                             0x00008000  /* R/WC */
#define INT_STS_RXE                             0x00004000  /* R/WC */
#define INT_STS_TXE                             0x00002000  /* R/WC */
/*#define       INT_STS_ERX             0x00001000*/  /* R/WC */
#define INT_STS_TDFU                            0x00000800  /* R/WC */
#define INT_STS_TDFO                            0x00000400  /* R/WC */
#define INT_STS_TDFA                            0x00000200  /* R/WC */
#define INT_STS_TSFF                            0x00000100  /* R/WC */
#define INT_STS_TSFL                            0x00000080  /* R/WC */
/*#define       INT_STS_RXDF            0x00000040*/  /* R/WC */
#define INT_STS_RDFO                            0x00000040  /* R/WC */
#define INT_STS_RDFL                            0x00000020  /* R/WC */
#define INT_STS_RSFF                            0x00000010  /* R/WC */
#define INT_STS_RSFL                            0x00000008  /* R/WC */
#define INT_STS_GPIO2_INT                       0x00000004  /* R/WC */
#define INT_STS_GPIO1_INT                       0x00000002  /* R/WC */
#define INT_STS_GPIO0_INT                       0x00000001  /* R/WC */
#define INT_EN                                  0x5C
#define INT_EN_SW_INT_EN                        0x80000000  /* R/W */
#define INT_EN_TXSTOP_INT_EN                    0x02000000  /* R/W */
#define INT_EN_RXSTOP_INT_EN                    0x01000000  /* R/W */
#define INT_EN_RXDFH_INT_EN                     0x00800000  /* R/W */
/*#define       INT_EN_RXDF_INT_EN              0x00400000*/  /* R/W */
#define INT_EN_TIOC_INT_EN                      0x00200000  /* R/W */
#define INT_EN_RXD_INT_EN                       0x00100000  /* R/W */
#define INT_EN_GPT_INT_EN                       0x00080000  /* R/W */
#define INT_EN_PHY_INT_EN                       0x00040000  /* R/W */
#define INT_EN_PME_INT_EN                       0x00020000  /* R/W */
#define INT_EN_TXSO_EN                          0x00010000  /* R/W */
#define INT_EN_RWT_EN                           0x00008000  /* R/W */
#define INT_EN_RXE_EN                           0x00004000  /* R/W */
#define INT_EN_TXE_EN                           0x00002000  /* R/W */
/*#define       INT_EN_ERX_EN                   0x00001000*/  /* R/W */
#define INT_EN_TDFU_EN                          0x00000800  /* R/W */
#define INT_EN_TDFO_EN                          0x00000400  /* R/W */
#define INT_EN_TDFA_EN                          0x00000200  /* R/W */
#define INT_EN_TSFF_EN                          0x00000100  /* R/W */
#define INT_EN_TSFL_EN                          0x00000080  /* R/W */
/*#define       INT_EN_RXDF_EN                  0x00000040*/  /* R/W */
#define INT_EN_RDFO_EN                          0x00000040  /* R/W */
#define INT_EN_RDFL_EN                          0x00000020  /* R/W */
#define INT_EN_RSFF_EN                          0x00000010  /* R/W */
#define INT_EN_RSFL_EN                          0x00000008  /* R/W */
#define INT_EN_GPIO2_INT                        0x00000004  /* R/W */
#define INT_EN_GPIO1_INT                        0x00000002  /* R/W */
#define INT_EN_GPIO0_INT                        0x00000001  /* R/W */

#define BYTE_TEST                               0x64
#define FIFO_INT                                0x68
#define FIFO_INT_TX_AVAIL_LEVEL                 0xFF000000  /* R/W */
#define FIFO_INT_TX_STS_LEVEL                   0x00FF0000  /* R/W */
#define FIFO_INT_RX_AVAIL_LEVEL                 0x0000FF00  /* R/W */
#define FIFO_INT_RX_STS_LEVEL                   0x000000FF  /* R/W */

#define RX_CFG                                  0x6C
#define RX_CFG_RX_END_ALGN                      0xC0000000  /* R/W */
#define         RX_CFG_RX_END_ALGN4             0x00000000  /* R/W */
#define         RX_CFG_RX_END_ALGN16            0x40000000  /* R/W */
#define         RX_CFG_RX_END_ALGN32            0x80000000  /* R/W */
#define RX_CFG_RX_DMA_CNT                       0x0FFF0000  /* R/W */
#define RX_CFG_RX_DUMP                          0x00008000  /* R/W */
#define RX_CFG_RXDOFF                           0x00001F00  /* R/W */
/*#define       RX_CFG_RXBAD                    0x00000001*/  /* R/W */

#define TX_CFG                                  0x70
/*#define       TX_CFG_TX_DMA_LVL               0xE0000000*/     /* R/W */
                                                 /* R/W Self Clearing */
/*#define       TX_CFG_TX_DMA_CNT               0x0FFF0000*/
#define TX_CFG_TXS_DUMP                         0x00008000  /* Self Clearing */
#define TX_CFG_TXD_DUMP                         0x00004000  /* Self Clearing */
#define TX_CFG_TXSAO                            0x00000004  /* R/W */
#define TX_CFG_TX_ON                            0x00000002  /* R/W */
#define TX_CFG_STOP_TX                          0x00000001  /* Self Clearing */

#define HW_CFG                                  0x74
#define HW_CFG_TTM                              0x00200000  /* R/W */
#define HW_CFG_SF                               0x00100000  /* R/W */
#define HW_CFG_TX_FIF_SZ                        0x000F0000  /* R/W */
#define HW_CFG_TR                               0x00003000  /* R/W */
#define HW_CFG_PHY_CLK_SEL                      0x00000060  /* R/W */
#define HW_CFG_PHY_CLK_SEL_INT_PHY              0x00000000 /* R/W */
#define HW_CFG_PHY_CLK_SEL_EXT_PHY              0x00000020 /* R/W */
#define HW_CFG_PHY_CLK_SEL_CLK_DIS              0x00000040 /* R/W */
#define HW_CFG_SMI_SEL                          0x00000010  /* R/W */
#define HW_CFG_EXT_PHY_DET                      0x00000008  /* RO */
#define HW_CFG_EXT_PHY_EN                       0x00000004  /* R/W */
#define HW_CFG_32_16_BIT_MODE                   0x00000004  /* RO */
#define HW_CFG_SRST_TO                          0x00000002  /* RO */
#define HW_CFG_SRST                             0x00000001  /* Self Clearing */

#define RX_DP_CTRL                              0x78
#define RX_DP_CTRL_RX_FFWD                      0x80000000  /* R/W */
#define RX_DP_CTRL_FFWD_BUSY                    0x80000000  /* RO */

#define RX_FIFO_INF                             0x7C
#define  RX_FIFO_INF_RXSUSED                    0x00FF0000  /* RO */
#define  RX_FIFO_INF_RXDUSED                    0x0000FFFF  /* RO */

#define TX_FIFO_INF                             0x80
#define TX_FIFO_INF_TSUSED                      0x00FF0000  /* RO */
#define TX_FIFO_INF_TDFREE                      0x0000FFFF  /* RO */

#define PMT_CTRL                                0x84
#define PMT_CTRL_PM_MODE                        0x00003000  /* Self Clearing */
#define PMT_CTRL_PHY_RST                        0x00000400  /* Self Clearing */
#define PMT_CTRL_WOL_EN                         0x00000200  /* R/W */
#define PMT_CTRL_ED_EN                          0x00000100  /* R/W */
                                        /* R/W Not Affected by SW Reset */
#define PMT_CTRL_PME_TYPE                       0x00000040
#define PMT_CTRL_WUPS                           0x00000030  /* R/WC */
#define PMT_CTRL_WUPS_NOWAKE                    0x00000000  /* R/WC */
#define PMT_CTRL_WUPS_ED                        0x00000010  /* R/WC */
#define PMT_CTRL_WUPS_WOL                       0x00000020  /* R/WC */
#define PMT_CTRL_WUPS_MULTI                     0x00000030  /* R/WC */
#define PMT_CTRL_PME_IND                        0x00000008  /* R/W */
#define PMT_CTRL_PME_POL                        0x00000004  /* R/W */
                                        /* R/W Not Affected by SW Reset */
#define PMT_CTRL_PME_EN                         0x00000002
#define PMT_CTRL_READY                          0x00000001  /* RO */

#define GPIO_CFG                                0x88
#define GPIO_CFG_LED3_EN                        0x40000000  /* R/W */
#define GPIO_CFG_LED2_EN                        0x20000000  /* R/W */
#define GPIO_CFG_LED1_EN                        0x10000000  /* R/W */
#define GPIO_CFG_GPIO2_INT_POL                  0x04000000  /* R/W */
#define GPIO_CFG_GPIO1_INT_POL                  0x02000000  /* R/W */
#define GPIO_CFG_GPIO0_INT_POL                  0x01000000  /* R/W */
#define GPIO_CFG_EEPR_EN                        0x00700000  /* R/W */
#define GPIO_CFG_GPIOBUF2                       0x00040000  /* R/W */
#define GPIO_CFG_GPIOBUF1                       0x00020000  /* R/W */
#define GPIO_CFG_GPIOBUF0                       0x00010000  /* R/W */
#define GPIO_CFG_GPIODIR2                       0x00000400  /* R/W */
#define GPIO_CFG_GPIODIR1                       0x00000200  /* R/W */
#define GPIO_CFG_GPIODIR0                       0x00000100  /* R/W */
#define GPIO_CFG_GPIOD4                         0x00000010  /* R/W */
#define GPIO_CFG_GPIOD3                         0x00000008  /* R/W */
#define GPIO_CFG_GPIOD2                         0x00000004  /* R/W */
#define GPIO_CFG_GPIOD1                         0x00000002  /* R/W */
#define GPIO_CFG_GPIOD0                         0x00000001  /* R/W */

#define GPT_CFG                                 0x8C
#define GPT_CFG_TIMER_EN                        0x20000000  /* R/W */
#define GPT_CFG_GPT_LOAD                        0x0000FFFF  /* R/W */

#define GPT_CNT                                 0x90
#define GPT_CNT_GPT_CNT                         0x0000FFFF  /* RO */

#define ENDIAN                                  0x98
#define FREE_RUN                                0x9C
#define RX_DROP                                 0xA0
#define MAC_CSR_CMD                             0xA4
#define  MAC_CSR_CMD_CSR_BUSY                   0x80000000  /* Self Clearing */
#define  MAC_CSR_CMD_R_NOT_W                    0x40000000  /* R/W */
#define  MAC_CSR_CMD_CSR_ADDR                   0x000000FF  /* R/W */

#define MAC_CSR_DATA                            0xA8
#define AFC_CFG                                 0xAC
#define         AFC_CFG_AFC_HI                  0x00FF0000  /* R/W */
#define         AFC_CFG_AFC_LO                  0x0000FF00  /* R/W */
#define         AFC_CFG_BACK_DUR                0x000000F0  /* R/W */
#define         AFC_CFG_FCMULT                  0x00000008  /* R/W */
#define         AFC_CFG_FCBRD                   0x00000004  /* R/W */
#define         AFC_CFG_FCADD                   0x00000002  /* R/W */
#define         AFC_CFG_FCANY                   0x00000001  /* R/W */

#define E2P_CMD                                 0xB0
#define         E2P_CMD_EPC_BUSY                0x80000000  /* Self Clearing */
#define         E2P_CMD_EPC_CMD                 0x70000000  /* R/W */
#define         E2P_CMD_EPC_CMD_READ            0x00000000  /* R/W */
#define         E2P_CMD_EPC_CMD_EWDS            0x10000000  /* R/W */
#define         E2P_CMD_EPC_CMD_EWEN            0x20000000  /* R/W */
#define         E2P_CMD_EPC_CMD_WRITE           0x30000000  /* R/W */
#define         E2P_CMD_EPC_CMD_WRAL            0x40000000  /* R/W */
#define         E2P_CMD_EPC_CMD_ERASE           0x50000000  /* R/W */
#define         E2P_CMD_EPC_CMD_ERAL            0x60000000  /* R/W */
#define         E2P_CMD_EPC_CMD_RELOAD          0x70000000  /* R/W */
#define         E2P_CMD_EPC_TIMEOUT             0x00000200  /* RO */
#define         E2P_CMD_MAC_ADDR_LOADED         0x00000100  /* RO */
#define         E2P_CMD_EPC_ADDR                0x000000FF  /* R/W */

#define E2P_DATA                                0xB4
#define E2P_DATA_EEPROM_DATA                    0x000000FF  /* R/W */
/* end of LAN register offsets and bit definitions */

/* MAC Control and Status registers */
#define MAC_CR                  0x01  /* R/W */

/* MAC_CR - MAC Control Register */
#define MAC_CR_RXALL                    0x80000000
/* TODO: delete this bit? It is not described in the data sheet. */
#define MAC_CR_HBDIS                    0x10000000
#define MAC_CR_RCVOWN                   0x00800000
#define MAC_CR_LOOPBK                   0x00200000
#define MAC_CR_FDPX                     0x00100000
#define MAC_CR_MCPAS                    0x00080000
#define MAC_CR_PRMS                     0x00040000
#define MAC_CR_INVFILT                  0x00020000
#define MAC_CR_PASSBAD                  0x00010000
#define MAC_CR_HFILT                    0x00008000
#define MAC_CR_HPFILT                   0x00002000
#define MAC_CR_LCOLL                    0x00001000
#define MAC_CR_BCAST                    0x00000800
#define MAC_CR_DISRTY                   0x00000400
#define MAC_CR_PADSTR                   0x00000100
#define MAC_CR_BOLMT_MASK               0x000000C0
#define MAC_CR_DFCHK                    0x00000020
#define MAC_CR_TXEN                     0x00000008
#define MAC_CR_RXEN                     0x00000004

#define ADDRH                   0x02      /* R/W mask 0x0000FFFFUL */
#define ADDRL                   0x03      /* R/W mask 0xFFFFFFFFUL */
#define HASHH                   0x04      /* R/W */
#define HASHL                   0x05      /* R/W */

#define MII_ACC                 0x06      /* R/W */
#define MII_ACC_PHY_ADDR                0x0000F800
#define MII_ACC_MIIRINDA                0x000007C0
#define MII_ACC_MII_WRITE               0x00000002
#define MII_ACC_MII_BUSY                0x00000001

#define MII_DATA                0x07      /* R/W mask 0x0000FFFFUL */

#define FLOW                    0x08      /* R/W */
#define FLOW_FCPT                       0xFFFF0000
#define FLOW_FCPASS                     0x00000004
#define FLOW_FCEN                       0x00000002
#define FLOW_FCBSY                      0x00000001

#define VLAN1                   0x09      /* R/W mask 0x0000FFFFUL */
#define VLAN1_VTI1                      0x0000ffff

#define VLAN2                   0x0A      /* R/W mask 0x0000FFFFUL */
#define VLAN2_VTI2                      0x0000ffff

#define WUFF                    0x0B      /* WO */

#define WUCSR                   0x0C      /* R/W */
#define WUCSR_GUE                       0x00000200
#define WUCSR_WUFR                      0x00000040
#define WUCSR_MPR                       0x00000020
#define WUCSR_WAKE_EN                   0x00000004
#define WUCSR_MPEN                      0x00000002

/* Chip ID values */
#define CHIP_89218      0x218a
#define CHIP_9115       0x115
#define CHIP_9116       0x116
#define CHIP_9117       0x117
#define CHIP_9118       0x118
#define CHIP_9211       0x9211
#define CHIP_9215       0x115a
#define CHIP_9216       0x116a
#define CHIP_9217       0x117a
#define CHIP_9218       0x118a
#define CHIP_9220       0x9220
#define CHIP_9221       0x9221

struct chip_id {
        u16 id;
        char *name;
};

static const struct chip_id chip_ids[] =  {
        { CHIP_89218, "LAN89218" },
        { CHIP_9115, "LAN9115" },
        { CHIP_9116, "LAN9116" },
        { CHIP_9117, "LAN9117" },
        { CHIP_9118, "LAN9118" },
        { CHIP_9211, "LAN9211" },
        { CHIP_9215, "LAN9215" },
        { CHIP_9216, "LAN9216" },
        { CHIP_9217, "LAN9217" },
        { CHIP_9218, "LAN9218" },
        { CHIP_9220, "LAN9220" },
        { CHIP_9221, "LAN9221" },
        { 0, NULL },
};

static u32 smc911x_get_mac_csr(struct eth_device *dev, u8 reg)
{
        while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY)
                ;
        smc911x_reg_write(dev, MAC_CSR_CMD,
                        MAC_CSR_CMD_CSR_BUSY | MAC_CSR_CMD_R_NOT_W | reg);
        while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY)
                ;

        return smc911x_reg_read(dev, MAC_CSR_DATA);
}

static void smc911x_set_mac_csr(struct eth_device *dev, u8 reg, u32 data)
{
        while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY)
                ;
        smc911x_reg_write(dev, MAC_CSR_DATA, data);
        smc911x_reg_write(dev, MAC_CSR_CMD, MAC_CSR_CMD_CSR_BUSY | reg);
        while (smc911x_reg_read(dev, MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY)
                ;
}

static int smc911x_detect_chip(struct eth_device *dev)
{
        unsigned long val, i;

        val = smc911x_reg_read(dev, BYTE_TEST);
        if (val == 0xffffffff) {
                /* Special case -- no chip present */
                return -1;
        } else if (val != 0x87654321) {
                printf(DRIVERNAME ": Invalid chip endian 0x%08lx\n", val);
                return -1;
        }

        val = smc911x_reg_read(dev, ID_REV) >> 16;
        for (i = 0; chip_ids[i].id != 0; i++) {
                if (chip_ids[i].id == val) break;
        }
        if (!chip_ids[i].id) {
                printf(DRIVERNAME ": Unknown chip ID %04lx\n", val);
                return -1;
        }

        dev->priv = (void *)&chip_ids[i];

        return 0;
}

static void smc911x_reset(struct eth_device *dev)
{
        int timeout;

        /*
         *  Take out of PM setting first
         *  Device is already wake up if PMT_CTRL_READY bit is set
         */
        if ((smc911x_reg_read(dev, PMT_CTRL) & PMT_CTRL_READY) == 0) {
                /* Write to the bytetest will take out of powerdown */
                smc911x_reg_write(dev, BYTE_TEST, 0x0);

                timeout = 10;

                while (timeout-- &&
                        !(smc911x_reg_read(dev, PMT_CTRL) & PMT_CTRL_READY))
                        udelay(10);
                if (timeout < 0) {
                        printf(DRIVERNAME
                                ": timeout waiting for PM restore\n");
                        return;
                }
        }

        /* Disable interrupts */
        smc911x_reg_write(dev, INT_EN, 0);

        smc911x_reg_write(dev, HW_CFG, HW_CFG_SRST);

        timeout = 1000;
        while (timeout-- && smc911x_reg_read(dev, E2P_CMD) & E2P_CMD_EPC_BUSY)
                udelay(10);

        if (timeout < 0) {
                printf(DRIVERNAME ": reset timeout\n");
                return;
        }

        /* Reset the FIFO level and flow control settings */
        smc911x_set_mac_csr(dev, FLOW, FLOW_FCPT | FLOW_FCEN);
        smc911x_reg_write(dev, AFC_CFG, 0x0050287F);

        /* Set to LED outputs */
        smc911x_reg_write(dev, GPIO_CFG, 0x70070000);
}

#endif