Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-14 08:57:58 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/drivers/net/smc911x.c
Nobuhiro Iwamatsu 33314470ab net: smc911x: Add pkt_data_pull and pkt_data_push function 
The RSK7203 board has the SMSC9118 wired up 'incorrectly'.
Byte-swapping is necessary, and so poor performance is inevitable.
This problem cannot evade by the swap function of CHIP, this can
evade by software Byte-swapping.
And this has problem by FIFO access only. pkt_data_pull/pkt_data_push
functions necessary to solve this problem.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
2008-09-02 21:18:19 -07:00

703 lines
22 KiB
C
Raw Blame History

/*
* SMSC LAN9[12]1[567] Network driver
*
* (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#include <net.h>
#include <miiphy.h>
#if defined (CONFIG_DRIVER_SMC911X_32_BIT) && \
defined (CONFIG_DRIVER_SMC911X_16_BIT)
#error "SMC911X: Only one of CONFIG_DRIVER_SMC911X_32_BIT and \
CONFIG_DRIVER_SMC911X_16_BIT shall be set"
#endif
#if defined (CONFIG_DRIVER_SMC911X_32_BIT)
static inline u32 reg_read(u32 addr)
{
return *(volatile u32*)addr;
}
static inline void reg_write(u32 addr, u32 val)
{
*(volatile u32*)addr = val;
}
#elif defined (CONFIG_DRIVER_SMC911X_16_BIT)
static inline u32 reg_read(u32 addr)
{
volatile u16 *addr_16 = (u16 *)addr;
return ((*addr_16 & 0x0000ffff) | (*(addr_16 + 1) << 16));
}
static inline void reg_write(u32 addr, u32 val)
{
*(volatile u16*)addr = (u16)val;
*(volatile u16*)(addr + 2) = (u16)(val >> 16);
}
#else
#error "SMC911X: undefined bus width"
#endif /* CONFIG_DRIVER_SMC911X_16_BIT */
u32 pkt_data_pull(u32 addr) \
__attribute__ ((weak, alias ("reg_read")));
void pkt_data_push(u32 addr, u32 val) \
__attribute__ ((weak, alias ("reg_write")));
#define mdelay(n) udelay((n)*1000)
/* Below are the register offsets and bit definitions
* of the Lan911x memory space
*/
#define RX_DATA_FIFO (CONFIG_DRIVER_SMC911X_BASE + 0x00)
#define TX_DATA_FIFO (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 0x44)
#define TX_STATUS_FIFO (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 0x4C)
#define ID_REV (CONFIG_DRIVER_SMC911X_BASE + 0x50)
#define ID_REV_CHIP_ID 0xFFFF0000 /* RO */
#define ID_REV_REV_ID 0x0000FFFF /* RO */
#define INT_CFG (CONFIG_DRIVER_SMC911X_BASE + 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 */
#define INT_CFG_IRQ_POL 0x00000010 /* R/W Not Affected by SW Reset */
#define INT_CFG_IRQ_TYPE 0x00000001 /* R/W Not Affected by SW Reset */
#define INT_STS (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 0x64)
#define FIFO_INT (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 0x70)
/*#define TX_CFG_TX_DMA_LVL 0xE0000000*/ /* R/W */
/*#define TX_CFG_TX_DMA_CNT 0x0FFF0000*/ /* R/W Self Clearing */
#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 (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 0x78)
#define RX_DP_CTRL_RX_FFWD 0x80000000 /* R/W */
#define RX_DP_CTRL_FFWD_BUSY 0x80000000 /* RO */
#define RX_FIFO_INF (CONFIG_DRIVER_SMC911X_BASE + 0x7C)
#define RX_FIFO_INF_RXSUSED 0x00FF0000 /* RO */
#define RX_FIFO_INF_RXDUSED 0x0000FFFF /* RO */
#define TX_FIFO_INF (CONFIG_DRIVER_SMC911X_BASE + 0x80)
#define TX_FIFO_INF_TSUSED 0x00FF0000 /* RO */
#define TX_FIFO_INF_TDFREE 0x0000FFFF /* RO */
#define PMT_CTRL (CONFIG_DRIVER_SMC911X_BASE + 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 */
#define PMT_CTRL_PME_TYPE 0x00000040 /* R/W Not Affected by SW Reset */
#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 */
#define PMT_CTRL_PME_EN 0x00000002 /* R/W Not Affected by SW Reset */
#define PMT_CTRL_READY 0x00000001 /* RO */
#define GPIO_CFG (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 0x8C)
#define GPT_CFG_TIMER_EN 0x20000000 /* R/W */
#define GPT_CFG_GPT_LOAD 0x0000FFFF /* R/W */
#define GPT_CNT (CONFIG_DRIVER_SMC911X_BASE + 0x90)
#define GPT_CNT_GPT_CNT 0x0000FFFF /* RO */
#define ENDIAN (CONFIG_DRIVER_SMC911X_BASE + 0x98)
#define FREE_RUN (CONFIG_DRIVER_SMC911X_BASE + 0x9C)
#define RX_DROP (CONFIG_DRIVER_SMC911X_BASE + 0xA0)
#define MAC_CSR_CMD (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 0xA8)
#define AFC_CFG (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 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 (CONFIG_DRIVER_SMC911X_BASE + 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_9115 0x115
#define CHIP_9116 0x116
#define CHIP_9117 0x117
#define CHIP_9118 0x118
#define CHIP_9215 0x115a
#define CHIP_9216 0x116a
#define CHIP_9217 0x117a
#define CHIP_9218 0x118a
struct chip_id {
u16 id;
char *name;
};
static const struct chip_id chip_ids[] = {
{ CHIP_9115, "LAN9115" },
{ CHIP_9116, "LAN9116" },
{ CHIP_9117, "LAN9117" },
{ CHIP_9118, "LAN9118" },
{ CHIP_9215, "LAN9215" },
{ CHIP_9216, "LAN9216" },
{ CHIP_9217, "LAN9217" },
{ CHIP_9218, "LAN9218" },
{ 0, NULL },
};
#define DRIVERNAME "smc911x"
u32 smc911x_get_mac_csr(u8 reg)
{
while (reg_read(MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY)
;
reg_write(MAC_CSR_CMD, MAC_CSR_CMD_CSR_BUSY | MAC_CSR_CMD_R_NOT_W | reg);
while (reg_read(MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY)
;
return reg_read(MAC_CSR_DATA);
}
void smc911x_set_mac_csr(u8 reg, u32 data)
{
while (reg_read(MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY)
;
reg_write(MAC_CSR_DATA, data);
reg_write(MAC_CSR_CMD, MAC_CSR_CMD_CSR_BUSY | reg);
while (reg_read(MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY)
;
}
static int smx911x_handle_mac_address(bd_t *bd)
{
unsigned long addrh, addrl;
unsigned char *m = bd->bi_enetaddr;
/* if the environment has a valid mac address then use it */
if ((m[0] | m[1] | m[2] | m[3] | m[4] | m[5])) {
addrl = m[0] | m[1] << 8 | m[2] << 16 | m[3] << 24;
addrh = m[4] | m[5] << 8;
smc911x_set_mac_csr(ADDRH, addrh);
smc911x_set_mac_csr(ADDRL, addrl);
} else {
/* if not, try to get one from the eeprom */
addrh = smc911x_get_mac_csr(ADDRH);
addrl = smc911x_get_mac_csr(ADDRL);
m[0] = (addrl ) & 0xff;
m[1] = (addrl >> 8 ) & 0xff;
m[2] = (addrl >> 16 ) & 0xff;
m[3] = (addrl >> 24 ) & 0xff;
m[4] = (addrh ) & 0xff;
m[5] = (addrh >> 8 ) & 0xff;
/* we get 0xff when there is no eeprom connected */
if ((m[0] & m[1] & m[2] & m[3] & m[4] & m[5]) == 0xff) {
printf(DRIVERNAME ": no valid mac address in environment "
"and no eeprom found\n");
return -1;
}
}
printf(DRIVERNAME ": MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
m[0], m[1], m[2], m[3], m[4], m[5]);
return 0;
}
static int smc911x_miiphy_read(u8 phy, u8 reg, u16 *val)
{
while (smc911x_get_mac_csr(MII_ACC) & MII_ACC_MII_BUSY)
;
smc911x_set_mac_csr(MII_ACC, phy << 11 | reg << 6 | MII_ACC_MII_BUSY);
while (smc911x_get_mac_csr(MII_ACC) & MII_ACC_MII_BUSY)
;
*val = smc911x_get_mac_csr(MII_DATA);
return 0;
}
static int smc911x_miiphy_write(u8 phy, u8 reg, u16 val)
{
while (smc911x_get_mac_csr(MII_ACC) & MII_ACC_MII_BUSY)
;
smc911x_set_mac_csr(MII_DATA, val);
smc911x_set_mac_csr(MII_ACC,
phy << 11 | reg << 6 | MII_ACC_MII_BUSY | MII_ACC_MII_WRITE);
while (smc911x_get_mac_csr(MII_ACC) & MII_ACC_MII_BUSY)
;
return 0;
}
static int smc911x_phy_reset(void)
{
u32 reg;
reg = reg_read(PMT_CTRL);
reg &= ~0xfffff030;
reg |= PMT_CTRL_PHY_RST;
reg_write(PMT_CTRL, reg);
mdelay(100);
return 0;
}
static void smc911x_phy_configure(void)
{
int timeout;
u16 status;
smc911x_phy_reset();
smc911x_miiphy_write(1, PHY_BMCR, PHY_BMCR_RESET);
mdelay(1);
smc911x_miiphy_write(1, PHY_ANAR, 0x01e1);
smc911x_miiphy_write(1, PHY_BMCR, PHY_BMCR_AUTON | PHY_BMCR_RST_NEG);
timeout = 5000;
do {
mdelay(1);
if ((timeout--) == 0)
goto err_out;
if (smc911x_miiphy_read(1, PHY_BMSR, &status) != 0)
goto err_out;
} while (!(status & PHY_BMSR_LS));
printf(DRIVERNAME ": phy initialized\n");
return;
err_out:
printf(DRIVERNAME ": autonegotiation timed out\n");
}
static void smc911x_reset(void)
{
int timeout;
/* Take out of PM setting first */
if (reg_read(PMT_CTRL) & PMT_CTRL_READY) {
/* Write to the bytetest will take out of powerdown */
reg_write(BYTE_TEST, 0x0);
timeout = 10;
while (timeout-- && !(reg_read(PMT_CTRL) & PMT_CTRL_READY))
udelay(10);
if (!timeout) {
printf(DRIVERNAME
": timeout waiting for PM restore\n");
return;
}
}
/* Disable interrupts */
reg_write(INT_EN, 0);
reg_write(HW_CFG, HW_CFG_SRST);
timeout = 1000;
while (timeout-- && reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY)
udelay(10);
if (!timeout) {
printf(DRIVERNAME ": reset timeout\n");
return;
}
/* Reset the FIFO level and flow control settings */
smc911x_set_mac_csr(FLOW, FLOW_FCPT | FLOW_FCEN);
reg_write(AFC_CFG, 0x0050287F);
/* Set to LED outputs */
reg_write(GPIO_CFG, 0x70070000);
}
static void smc911x_enable(void)
{
/* Enable TX */
reg_write(HW_CFG, 8 << 16 | HW_CFG_SF);
reg_write(GPT_CFG, GPT_CFG_TIMER_EN | 10000);
reg_write(TX_CFG, TX_CFG_TX_ON);
/* no padding to start of packets */
reg_write(RX_CFG, 0);
smc911x_set_mac_csr(MAC_CR, MAC_CR_TXEN | MAC_CR_RXEN | MAC_CR_HBDIS);
}
int eth_init(bd_t *bd)
{
unsigned long val, i;
printf(DRIVERNAME ": initializing\n");
val = reg_read(BYTE_TEST);
if (val != 0x87654321) {
printf(DRIVERNAME ": Invalid chip endian 0x%08lx\n", val);
goto err_out;
}
val = reg_read(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);
goto err_out;
}
printf(DRIVERNAME ": detected %s controller\n", chip_ids[i].name);
smc911x_reset();
/* Configure the PHY, initialize the link state */
smc911x_phy_configure();
if (smx911x_handle_mac_address(bd))
goto err_out;
/* Turn on Tx + Rx */
smc911x_enable();
return 0;
err_out:
return -1;
}
int eth_send(volatile void *packet, int length)
{
u32 *data = (u32*)packet;
u32 tmplen;
u32 status;
reg_write(TX_DATA_FIFO, TX_CMD_A_INT_FIRST_SEG | TX_CMD_A_INT_LAST_SEG | length);
reg_write(TX_DATA_FIFO, length);
tmplen = (length + 3) / 4;
while (tmplen--)
pkt_data_push(TX_DATA_FIFO, *data++);
/* wait for transmission */
while (!((reg_read(TX_FIFO_INF) & TX_FIFO_INF_TSUSED) >> 16));
/* get status. Ignore 'no carrier' error, it has no meaning for
* full duplex operation
*/
status = reg_read(TX_STATUS_FIFO) & (TX_STS_LOC | TX_STS_LATE_COLL |
TX_STS_MANY_COLL | TX_STS_MANY_DEFER | TX_STS_UNDERRUN);
if (!status)
return 0;
printf(DRIVERNAME ": failed to send packet: %s%s%s%s%s\n",
status & TX_STS_LOC ? "TX_STS_LOC " : "",
status & TX_STS_LATE_COLL ? "TX_STS_LATE_COLL " : "",
status & TX_STS_MANY_COLL ? "TX_STS_MANY_COLL " : "",
status & TX_STS_MANY_DEFER ? "TX_STS_MANY_DEFER " : "",
status & TX_STS_UNDERRUN ? "TX_STS_UNDERRUN" : "");
return -1;
}
void eth_halt(void)
{
smc911x_reset();
}
int eth_rx(void)
{
u32 *data = (u32 *)NetRxPackets[0];
u32 pktlen, tmplen;
u32 status;
if ((reg_read(RX_FIFO_INF) & RX_FIFO_INF_RXSUSED) >> 16) {
status = reg_read(RX_STATUS_FIFO);
pktlen = (status & RX_STS_PKT_LEN) >> 16;
reg_write(RX_CFG, 0);
tmplen = (pktlen + 2+ 3) / 4;
while (tmplen--)
*data++ = pkt_data_pull(RX_DATA_FIFO);
if (status & RX_STS_ES)
printf(DRIVERNAME
": dropped bad packet. Status: 0x%08x\n",
status);
else
NetReceive(NetRxPackets[0], pktlen);
}
return 0;
}
Reference in a new issue View git blame Copy permalink