mirror of https://gitee.com/openkylin/linux.git
MN10300: ASB2364: Add support for SMSC911X and SMC911X
Add support for SMSC911X and SMC911X for the ASB2364 unit. Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com> cc: steve.glendinning@smsc.com cc: netdev@vger.kernel.org
This commit is contained in:
Akira Takeuchi
David Howells
parent
6044cf1d94
commit
62747cd27e
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@ -117,6 +117,7 @@ config MN10300_UNIT_ASB2305
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config MN10300_UNIT_ASB2364
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bool "ASB2364"
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select SMSC911X_ARCH_HOOKS if SMSC911X
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endchoice
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@ -0,0 +1 @@
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#include <unit/smsc911x.h>
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@ -8,3 +8,5 @@
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# Note 2! The CFLAGS definitions are now in the main makefile...
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obj-y := unit-init.o leds.o irq-fpga.o
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obj-$(CONFIG_SMSC911X) += smsc911x.o
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@ -0,0 +1,171 @@
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/* Support for the SMSC911x NIC
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*
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* Copyright (C) 2006 Matsushita Electric Industrial Co., Ltd.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _ASM_UNIT_SMSC911X_H
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#define _ASM_UNIT_SMSC911X_H
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#include <linux/netdevice.h>
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#include <proc/irq.h>
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#include <unit/fpga-regs.h>
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#define MN10300_USE_EXT_EEPROM
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#define SMSC911X_BASE 0xA8000000UL
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#define SMSC911X_BASE_END 0xA8000100UL
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#define SMSC911X_IRQ FPGA_LAN_IRQ
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/*
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* Allow the FPGA to be initialised by the SMSC911x driver
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*/
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#undef SMSC_INITIALIZE
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#define SMSC_INITIALIZE() \
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do { \
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/* release reset */ \
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ASB2364_FPGA_REG_RESET_LAN = 0x0001; \
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SyncExBus(); \
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} while (0)
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#ifdef MN10300_USE_EXT_EEPROM
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#include <linux/delay.h>
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#include <unit/clock.h>
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#define EEPROM_ADDRESS 0xA0
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#define MAC_OFFSET 0x0008
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#define USE_IIC_CH 0 /* 0 or 1 */
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#define IIC_OFFSET (0x80000 * USE_IIC_CH)
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#define IIC_DTRM __SYSREG(0xd8400000 + IIC_OFFSET, u32)
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#define IIC_DREC __SYSREG(0xd8400004 + IIC_OFFSET, u32)
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#define IIC_MYADD __SYSREG(0xd8400008 + IIC_OFFSET, u32)
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#define IIC_CLK __SYSREG(0xd840000c + IIC_OFFSET, u32)
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#define IIC_BRST __SYSREG(0xd8400010 + IIC_OFFSET, u32)
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#define IIC_HOLD __SYSREG(0xd8400014 + IIC_OFFSET, u32)
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#define IIC_BSTS __SYSREG(0xd8400018 + IIC_OFFSET, u32)
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#define IIC_ICR __SYSREG(0xd4000080 + 4 * USE_IIC_CH, u16)
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#define IIC_CLK_PLS ((unsigned short)(MN10300_IOCLK / 100000 - 1))
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#define IIC_CLK_LOW ((unsigned short)(IIC_CLK_PLS / 2))
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#define SYS_IIC_DTRM_Bit_STA ((unsigned short)0x0400)
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#define SYS_IIC_DTRM_Bit_STO ((unsigned short)0x0200)
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#define SYS_IIC_DTRM_Bit_ACK ((unsigned short)0x0100)
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#define SYS_IIC_DTRM_Bit_DATA ((unsigned short)0x00FF)
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static inline void POLL_INT_REQ(volatile u16 *icr)
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{
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unsigned long flags;
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u16 tmp;
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while (!(*icr & GxICR_REQUEST))
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;
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flags = arch_local_cli_save();
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tmp = *icr;
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*icr = (tmp & GxICR_LEVEL) | GxICR_DETECT;
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tmp = *icr;
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arch_local_irq_restore(flags);
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}
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/*
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* Implement the SMSC911x hook for MAC address retrieval
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*/
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#undef smsc_get_mac
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static inline int smsc_get_mac(struct net_device *dev)
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{
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unsigned char *mac_buf = dev->dev_addr;
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int i;
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unsigned short value;
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unsigned int data;
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int mac_length = 6;
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int check;
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u16 orig_gicr, tmp;
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unsigned long flags;
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/* save original GnICR and clear GnICR.IE */
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flags = arch_local_cli_save();
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orig_gicr = IIC_ICR;
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IIC_ICR = orig_gicr & GxICR_LEVEL;
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tmp = IIC_ICR;
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arch_local_irq_restore(flags);
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IIC_MYADD = 0x00000008;
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IIC_CLK = (IIC_CLK_LOW << 16) + (IIC_CLK_PLS);
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/* bus hung recovery */
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while (1) {
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check = 0;
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for (i = 0; i < 3; i++) {
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if ((IIC_BSTS & 0x00000003) == 0x00000003)
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check++;
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udelay(3);
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}
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if (check == 3) {
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IIC_BRST = 0x00000003;
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break;
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} else {
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for (i = 0; i < 3; i++) {
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IIC_BRST = 0x00000002;
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udelay(8);
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IIC_BRST = 0x00000003;
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udelay(8);
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}
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}
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}
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IIC_BRST = 0x00000002;
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IIC_BRST = 0x00000003;
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value = SYS_IIC_DTRM_Bit_STA | SYS_IIC_DTRM_Bit_ACK;
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value |= (((unsigned short)EEPROM_ADDRESS & SYS_IIC_DTRM_Bit_DATA) |
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(unsigned short)0x0000);
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IIC_DTRM = value;
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POLL_INT_REQ(&IIC_ICR);
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/** send offset of MAC address in EEPROM **/
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IIC_DTRM = (unsigned char)((MAC_OFFSET & 0xFF00) >> 8);
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POLL_INT_REQ(&IIC_ICR);
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IIC_DTRM = (unsigned char)(MAC_OFFSET & 0x00FF);
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POLL_INT_REQ(&IIC_ICR);
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udelay(1000);
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value = SYS_IIC_DTRM_Bit_STA;
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value |= (((unsigned short)EEPROM_ADDRESS & SYS_IIC_DTRM_Bit_DATA) |
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(unsigned short)0x0001);
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IIC_DTRM = value;
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POLL_INT_REQ(&IIC_ICR);
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IIC_DTRM = 0x00000000;
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while (mac_length > 0) {
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POLL_INT_REQ(&IIC_ICR);
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data = IIC_DREC;
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mac_length--;
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if (mac_length == 0)
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value = 0x00000300; /* stop IIC bus */
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else if (mac_length == 1)
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value = 0x00000100; /* no ack */
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else
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value = 0x00000000; /* ack */
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IIC_DTRM = value;
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*mac_buf++ = (unsigned char)(data & 0xff);
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}
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/* restore GnICR.LV and GnICR.IE */
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flags = arch_local_cli_save();
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IIC_ICR = (orig_gicr & (GxICR_LEVEL | GxICR_ENABLE));
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tmp = IIC_ICR;
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arch_local_irq_restore(flags);
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return 0;
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}
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#endif /* MN10300_USE_EXT_EEPROM */
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#endif /* _ASM_UNIT_SMSC911X_H */
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@ -0,0 +1,58 @@
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/* Specification for the SMSC911x NIC
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*
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* Copyright (C) 2006 Matsushita Electric Industrial Co., Ltd.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/ioport.h>
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#include <linux/smsc911x.h>
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#include <unit/smsc911x.h>
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static struct smsc911x_platform_config smsc911x_config = {
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
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.flags = SMSC911X_USE_32BIT,
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};
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static struct resource smsc911x_resources[] = {
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[0] = {
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.start = SMSC911X_BASE,
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.end = SMSC911X_BASE_END,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = SMSC911X_IRQ,
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.end = SMSC911X_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device smsc911x_device = {
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.name = "smsc911x",
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.id = 0,
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.num_resources = ARRAY_SIZE(smsc911x_resources),
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.resource = smsc911x_resources,
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.dev = {
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.platform_data = &smsc911x_config,
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}
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};
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/*
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* add platform devices
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*/
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static int __init unit_device_init(void)
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{
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platform_device_register(&smsc911x_device);
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return 0;
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}
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device_initcall(unit_device_init);
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@ -1041,7 +1041,7 @@ config SMC911X
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tristate "SMSC LAN911[5678] support"
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select CRC32
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select MII
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depends on ARM || SUPERH
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depends on ARM || SUPERH || MN10300
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help
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This is a driver for SMSC's LAN911x series of Ethernet chipsets
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including the new LAN9115, LAN9116, LAN9117, and LAN9118.
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@ -1055,7 +1055,7 @@ config SMC911X
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config SMSC911X
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tristate "SMSC LAN911x/LAN921x families embedded ethernet support"
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depends on ARM || SUPERH || BLACKFIN || MIPS
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depends on ARM || SUPERH || BLACKFIN || MIPS || MN10300
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select CRC32
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select MII
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select PHYLIB
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@ -1067,6 +1067,14 @@ config SMSC911X
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<file:Documentation/networking/net-modules.txt>. The module
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will be called smsc911x.
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config SMSC911X_ARCH_HOOKS
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def_bool n
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depends on SMSC911X
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help
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If the arch enables this, it allows the arch to implement various
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hooks for more comprehensive interrupt control and also to override
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the source of the MAC address.
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config NET_VENDOR_RACAL
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bool "Racal-Interlan (Micom) NI cards"
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depends on ISA
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@ -2075,7 +2075,7 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
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} else {
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/* Try reading mac address from device. if EEPROM is present
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* it will already have been set */
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smsc911x_read_mac_address(dev);
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smsc_get_mac(dev);
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if (is_valid_ether_addr(dev->dev_addr)) {
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/* eeprom values are valid so use them */
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@ -2176,6 +2176,7 @@ static struct platform_driver smsc911x_driver = {
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/* Entry point for loading the module */
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static int __init smsc911x_init_module(void)
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{
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SMSC_INITIALIZE();
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return platform_driver_register(&smsc911x_driver);
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}
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@ -394,4 +394,15 @@
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#define LPA_PAUSE_ALL (LPA_PAUSE_CAP | \
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LPA_PAUSE_ASYM)
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/*
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* Provide hooks to let the arch add to the initialisation procedure
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* and to override the source of the MAC address.
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*/
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#define SMSC_INITIALIZE() do {} while (0)
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#define smsc_get_mac(dev) smsc911x_read_mac_address((dev))
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#ifdef CONFIG_SMSC911X_ARCH_HOOKS
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#include <asm/smsc911x.h>
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#endif
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#endif /* __SMSC911X_H__ */
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