diff options
Diffstat (limited to 'arch/mn10300')
| -rw-r--r-- | arch/mn10300/Kconfig | 1 | ||||
| -rw-r--r-- | arch/mn10300/include/asm/smsc911x.h | 1 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2364/Makefile | 2 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2364/include/unit/smsc911x.h | 171 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2364/smsc911x.c | 58 |
5 files changed, 233 insertions, 0 deletions
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index 42ca55a47377..129ca492e917 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -117,6 +117,7 @@ config MN10300_UNIT_ASB2305 config MN10300_UNIT_ASB2364 bool "ASB2364" + select SMSC911X_ARCH_HOOKS if SMSC911X endchoice diff --git a/arch/mn10300/include/asm/smsc911x.h b/arch/mn10300/include/asm/smsc911x.h new file mode 100644 index 000000000000..2fcd1080322b --- /dev/null +++ b/arch/mn10300/include/asm/smsc911x.h @@ -0,0 +1 @@ +#include <unit/smsc911x.h> diff --git a/arch/mn10300/unit-asb2364/Makefile b/arch/mn10300/unit-asb2364/Makefile index e9d9b90ef6da..b3263ecfc4ff 100644 --- a/arch/mn10300/unit-asb2364/Makefile +++ b/arch/mn10300/unit-asb2364/Makefile @@ -8,3 +8,5 @@ # Note 2! The CFLAGS definitions are now in the main makefile... obj-y := unit-init.o leds.o irq-fpga.o + +obj-$(CONFIG_SMSC911X) += smsc911x.o diff --git a/arch/mn10300/unit-asb2364/include/unit/smsc911x.h b/arch/mn10300/unit-asb2364/include/unit/smsc911x.h new file mode 100644 index 000000000000..4c1ede535fa9 --- /dev/null +++ b/arch/mn10300/unit-asb2364/include/unit/smsc911x.h @@ -0,0 +1,171 @@ +/* Support for the SMSC911x NIC + * + * Copyright (C) 2006 Matsushita Electric Industrial Co., Ltd. + * All Rights Reserved. + * + * 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. + */ +#ifndef _ASM_UNIT_SMSC911X_H +#define _ASM_UNIT_SMSC911X_H + +#include <linux/netdevice.h> +#include <proc/irq.h> +#include <unit/fpga-regs.h> + +#define MN10300_USE_EXT_EEPROM + + +#define SMSC911X_BASE 0xA8000000UL +#define SMSC911X_BASE_END 0xA8000100UL +#define SMSC911X_IRQ FPGA_LAN_IRQ + +/* + * Allow the FPGA to be initialised by the SMSC911x driver + */ +#undef SMSC_INITIALIZE +#define SMSC_INITIALIZE() \ +do { \ + /* release reset */ \ + ASB2364_FPGA_REG_RESET_LAN = 0x0001; \ + SyncExBus(); \ +} while (0) + +#ifdef MN10300_USE_EXT_EEPROM +#include <linux/delay.h> +#include <unit/clock.h> + +#define EEPROM_ADDRESS 0xA0 +#define MAC_OFFSET 0x0008 +#define USE_IIC_CH 0 /* 0 or 1 */ +#define IIC_OFFSET (0x80000 * USE_IIC_CH) +#define IIC_DTRM __SYSREG(0xd8400000 + IIC_OFFSET, u32) +#define IIC_DREC __SYSREG(0xd8400004 + IIC_OFFSET, u32) +#define IIC_MYADD __SYSREG(0xd8400008 + IIC_OFFSET, u32) +#define IIC_CLK __SYSREG(0xd840000c + IIC_OFFSET, u32) +#define IIC_BRST __SYSREG(0xd8400010 + IIC_OFFSET, u32) +#define IIC_HOLD __SYSREG(0xd8400014 + IIC_OFFSET, u32) +#define IIC_BSTS __SYSREG(0xd8400018 + IIC_OFFSET, u32) +#define IIC_ICR __SYSREG(0xd4000080 + 4 * USE_IIC_CH, u16) + +#define IIC_CLK_PLS ((unsigned short)(MN10300_IOCLK / 100000 - 1)) +#define IIC_CLK_LOW ((unsigned short)(IIC_CLK_PLS / 2)) + +#define SYS_IIC_DTRM_Bit_STA ((unsigned short)0x0400) +#define SYS_IIC_DTRM_Bit_STO ((unsigned short)0x0200) +#define SYS_IIC_DTRM_Bit_ACK ((unsigned short)0x0100) +#define SYS_IIC_DTRM_Bit_DATA ((unsigned short)0x00FF) + +static inline void POLL_INT_REQ(volatile u16 *icr) +{ + unsigned long flags; + u16 tmp; + + while (!(*icr & GxICR_REQUEST)) + ; + flags = arch_local_cli_save(); + tmp = *icr; + *icr = (tmp & GxICR_LEVEL) | GxICR_DETECT; + tmp = *icr; + arch_local_irq_restore(flags); +} + +/* + * Implement the SMSC911x hook for MAC address retrieval + */ +#undef smsc_get_mac +static inline int smsc_get_mac(struct net_device *dev) +{ + unsigned char *mac_buf = dev->dev_addr; + int i; + unsigned short value; + unsigned int data; + int mac_length = 6; + int check; + u16 orig_gicr, tmp; + unsigned long flags; + + /* save original GnICR and clear GnICR.IE */ + flags = arch_local_cli_save(); + orig_gicr = IIC_ICR; + IIC_ICR = orig_gicr & GxICR_LEVEL; + tmp = IIC_ICR; + arch_local_irq_restore(flags); + + IIC_MYADD = 0x00000008; + IIC_CLK = (IIC_CLK_LOW << 16) + (IIC_CLK_PLS); + /* bus hung recovery */ + + while (1) { + check = 0; + for (i = 0; i < 3; i++) { + if ((IIC_BSTS & 0x00000003) == 0x00000003) + check++; + udelay(3); + } + + if (check == 3) { + IIC_BRST = 0x00000003; + break; + } else { + for (i = 0; i < 3; i++) { + IIC_BRST = 0x00000002; + udelay(8); + IIC_BRST = 0x00000003; + udelay(8); + } + } + } + + IIC_BRST = 0x00000002; + IIC_BRST = 0x00000003; + + value = SYS_IIC_DTRM_Bit_STA | SYS_IIC_DTRM_Bit_ACK; + value |= (((unsigned short)EEPROM_ADDRESS & SYS_IIC_DTRM_Bit_DATA) | + (unsigned short)0x0000); + IIC_DTRM = value; + POLL_INT_REQ(&IIC_ICR); + + /** send offset of MAC address in EEPROM **/ + IIC_DTRM = (unsigned char)((MAC_OFFSET & 0xFF00) >> 8); + POLL_INT_REQ(&IIC_ICR); + + IIC_DTRM = (unsigned char)(MAC_OFFSET & 0x00FF); + POLL_INT_REQ(&IIC_ICR); + + udelay(1000); + + value = SYS_IIC_DTRM_Bit_STA; + value |= (((unsigned short)EEPROM_ADDRESS & SYS_IIC_DTRM_Bit_DATA) | + (unsigned short)0x0001); + IIC_DTRM = value; + POLL_INT_REQ(&IIC_ICR); + + IIC_DTRM = 0x00000000; + while (mac_length > 0) { + POLL_INT_REQ(&IIC_ICR); + + data = IIC_DREC; + mac_length--; + if (mac_length == 0) + value = 0x00000300; /* stop IIC bus */ + else if (mac_length == 1) + value = 0x00000100; /* no ack */ + else + value = 0x00000000; /* ack */ + IIC_DTRM = value; + *mac_buf++ = (unsigned char)(data & 0xff); + } + + /* restore GnICR.LV and GnICR.IE */ + flags = arch_local_cli_save(); + IIC_ICR = (orig_gicr & (GxICR_LEVEL | GxICR_ENABLE)); + tmp = IIC_ICR; + arch_local_irq_restore(flags); + + return 0; +} +#endif /* MN10300_USE_EXT_EEPROM */ +#endif /* _ASM_UNIT_SMSC911X_H */ diff --git a/arch/mn10300/unit-asb2364/smsc911x.c b/arch/mn10300/unit-asb2364/smsc911x.c new file mode 100644 index 000000000000..544a73e94c81 --- /dev/null +++ b/arch/mn10300/unit-asb2364/smsc911x.c @@ -0,0 +1,58 @@ +/* Specification for the SMSC911x NIC + * + * Copyright (C) 2006 Matsushita Electric Industrial Co., Ltd. + * All Rights Reserved. + * + * 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. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/smsc911x.h> +#include <unit/smsc911x.h> + +static struct smsc911x_platform_config smsc911x_config = { + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, + .flags = SMSC911X_USE_32BIT, +}; + +static struct resource smsc911x_resources[] = { + [0] = { + .start = SMSC911X_BASE, + .end = SMSC911X_BASE_END, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = SMSC911X_IRQ, + .end = SMSC911X_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device smsc911x_device = { + .name = "smsc911x", + .id = 0, + .num_resources = ARRAY_SIZE(smsc911x_resources), + .resource = smsc911x_resources, + .dev = { + .platform_data = &smsc911x_config, + } +}; + +/* + * add platform devices + */ +static int __init unit_device_init(void) +{ + platform_device_register(&smsc911x_device); + return 0; +} + +device_initcall(unit_device_init); |