diff options
Diffstat (limited to 'target/linux/atheros/files-2.6.26/drivers')
7 files changed, 0 insertions, 2600 deletions
diff --git a/target/linux/atheros/files-2.6.26/drivers/mtd/devices/spiflash.c b/target/linux/atheros/files-2.6.26/drivers/mtd/devices/spiflash.c deleted file mode 100644 index 92d4fff997..0000000000 --- a/target/linux/atheros/files-2.6.26/drivers/mtd/devices/spiflash.c +++ /dev/null @@ -1,533 +0,0 @@ - -/* - * MTD driver for the SPI Flash Memory support. - * - * Copyright (c) 2005-2006 Atheros Communications Inc. - * Copyright (C) 2006-2007 FON Technology, SL. - * Copyright (C) 2006-2007 Imre Kaloz <kaloz@openwrt.org> - * Copyright (C) 2006-2007 Felix Fietkau <nbd@openwrt.org> - * - * This code is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -/*=========================================================================== -** !!!! VERY IMPORTANT NOTICE !!!! FLASH DATA STORED IN LITTLE ENDIAN FORMAT -** -** This module contains the Serial Flash access routines for the Atheros SOC. -** The Atheros SOC integrates a SPI flash controller that is used to access -** serial flash parts. The SPI flash controller executes in "Little Endian" -** mode. THEREFORE, all WRITES and READS from the MIPS CPU must be -** BYTESWAPPED! The SPI Flash controller hardware by default performs READ -** ONLY byteswapping when accessed via the SPI Flash Alias memory region -** (Physical Address 0x0800_0000 - 0x0fff_ffff). The data stored in the -** flash sectors is stored in "Little Endian" format. -** -** The spiflash_write() routine performs byteswapping on all write -** operations. -**===========================================================================*/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/version.h> -#include <linux/errno.h> -#include <linux/slab.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/partitions.h> -#include <linux/platform_device.h> -#include <linux/sched.h> -#include <linux/squashfs_fs.h> -#include <linux/root_dev.h> -#include <linux/delay.h> -#include <asm/delay.h> -#include <asm/io.h> -#include "spiflash.h" - -#ifndef __BIG_ENDIAN -#error This driver currently only works with big endian CPU. -#endif - -#define MAX_PARTS 32 - -#define SPIFLASH "spiflash: " - -#define MIN(a,b) ((a) < (b) ? (a) : (b)) - -#define busy_wait(condition, wait) \ - do { \ - while (condition) { \ - spin_unlock_bh(&spidata->mutex); \ - if (wait > 1) \ - msleep(wait); \ - else if ((wait == 1) && need_resched()) \ - schedule(); \ - else \ - udelay(1); \ - spin_lock_bh(&spidata->mutex); \ - } \ - } while (0) - - -static __u32 spiflash_regread32(int reg); -static void spiflash_regwrite32(int reg, __u32 data); -static __u32 spiflash_sendcmd (int op, u32 addr); - -int __init spiflash_init (void); -void __exit spiflash_exit (void); -static int spiflash_probe_chip (void); -static int spiflash_erase (struct mtd_info *mtd,struct erase_info *instr); -static int spiflash_read (struct mtd_info *mtd, loff_t from,size_t len,size_t *retlen,u_char *buf); -static int spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u_char *buf); - -/* Flash configuration table */ -struct flashconfig { - __u32 byte_cnt; - __u32 sector_cnt; - __u32 sector_size; - __u32 cs_addrmask; -} flashconfig_tbl[MAX_FLASH] = - { - { 0, 0, 0, 0}, - { STM_1MB_BYTE_COUNT, STM_1MB_SECTOR_COUNT, STM_1MB_SECTOR_SIZE, 0x0}, - { STM_2MB_BYTE_COUNT, STM_2MB_SECTOR_COUNT, STM_2MB_SECTOR_SIZE, 0x0}, - { STM_4MB_BYTE_COUNT, STM_4MB_SECTOR_COUNT, STM_4MB_SECTOR_SIZE, 0x0}, - { STM_8MB_BYTE_COUNT, STM_8MB_SECTOR_COUNT, STM_8MB_SECTOR_SIZE, 0x0}, - { STM_16MB_BYTE_COUNT, STM_16MB_SECTOR_COUNT, STM_16MB_SECTOR_SIZE, 0x0} - }; - -/* Mapping of generic opcodes to STM serial flash opcodes */ -#define SPI_WRITE_ENABLE 0 -#define SPI_WRITE_DISABLE 1 -#define SPI_RD_STATUS 2 -#define SPI_WR_STATUS 3 -#define SPI_RD_DATA 4 -#define SPI_FAST_RD_DATA 5 -#define SPI_PAGE_PROGRAM 6 -#define SPI_SECTOR_ERASE 7 -#define SPI_BULK_ERASE 8 -#define SPI_DEEP_PWRDOWN 9 -#define SPI_RD_SIG 10 -#define SPI_MAX_OPCODES 11 - -struct opcodes { - __u16 code; - __s8 tx_cnt; - __s8 rx_cnt; -} stm_opcodes[] = { - {STM_OP_WR_ENABLE, 1, 0}, - {STM_OP_WR_DISABLE, 1, 0}, - {STM_OP_RD_STATUS, 1, 1}, - {STM_OP_WR_STATUS, 1, 0}, - {STM_OP_RD_DATA, 4, 4}, - {STM_OP_FAST_RD_DATA, 5, 0}, - {STM_OP_PAGE_PGRM, 8, 0}, - {STM_OP_SECTOR_ERASE, 4, 0}, - {STM_OP_BULK_ERASE, 1, 0}, - {STM_OP_DEEP_PWRDOWN, 1, 0}, - {STM_OP_RD_SIG, 4, 1}, -}; - -/* Driver private data structure */ -struct spiflash_data { - struct mtd_info *mtd; - struct mtd_partition *parsed_parts; /* parsed partitions */ - void *readaddr; /* memory mapped data for read */ - void *mmraddr; /* memory mapped register space */ - wait_queue_head_t wq; - spinlock_t mutex; - int state; -}; -enum { - FL_READY, - FL_READING, - FL_ERASING, - FL_WRITING -}; - -static struct spiflash_data *spidata; - -extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts); - -/***************************************************************************************************/ - -static __u32 -spiflash_regread32(int reg) -{ - volatile __u32 *data = (__u32 *)(spidata->mmraddr + reg); - - return (*data); -} - -static void -spiflash_regwrite32(int reg, __u32 data) -{ - volatile __u32 *addr = (__u32 *)(spidata->mmraddr + reg); - - *addr = data; - return; -} - - -static __u32 -spiflash_sendcmd (int op, u32 addr) -{ - u32 reg; - u32 mask; - struct opcodes *ptr_opcode; - - ptr_opcode = &stm_opcodes[op]; - busy_wait((reg = spiflash_regread32(SPI_FLASH_CTL)) & SPI_CTL_BUSY, 0); - spiflash_regwrite32(SPI_FLASH_OPCODE, ((u32) ptr_opcode->code) | (addr << 8)); - - reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | ptr_opcode->tx_cnt | - (ptr_opcode->rx_cnt << 4) | SPI_CTL_START; - - spiflash_regwrite32(SPI_FLASH_CTL, reg); - busy_wait(spiflash_regread32(SPI_FLASH_CTL) & SPI_CTL_BUSY, 0); - - if (!ptr_opcode->rx_cnt) - return 0; - - reg = (__u32) spiflash_regread32(SPI_FLASH_DATA); - - switch (ptr_opcode->rx_cnt) { - case 1: - mask = 0x000000ff; - break; - case 2: - mask = 0x0000ffff; - break; - case 3: - mask = 0x00ffffff; - break; - default: - mask = 0xffffffff; - break; - } - reg &= mask; - - return reg; -} - - - -/* Probe SPI flash device - * Function returns 0 for failure. - * and flashconfig_tbl array index for success. - */ -static int -spiflash_probe_chip (void) -{ - __u32 sig; - int flash_size; - - /* Read the signature on the flash device */ - spin_lock_bh(&spidata->mutex); - sig = spiflash_sendcmd(SPI_RD_SIG, 0); - spin_unlock_bh(&spidata->mutex); - - switch (sig) { - case STM_8MBIT_SIGNATURE: - flash_size = FLASH_1MB; - break; - case STM_16MBIT_SIGNATURE: - flash_size = FLASH_2MB; - break; - case STM_32MBIT_SIGNATURE: - flash_size = FLASH_4MB; - break; - case STM_64MBIT_SIGNATURE: - flash_size = FLASH_8MB; - break; - case STM_128MBIT_SIGNATURE: - flash_size = FLASH_16MB; - break; - default: - printk (KERN_WARNING SPIFLASH "Read of flash device signature failed!\n"); - return (0); - } - - return (flash_size); -} - - -/* wait until the flash chip is ready and grab a lock */ -static int spiflash_wait_ready(int state) -{ - DECLARE_WAITQUEUE(wait, current); - -retry: - spin_lock_bh(&spidata->mutex); - if (spidata->state != FL_READY) { - set_current_state(TASK_UNINTERRUPTIBLE); - add_wait_queue(&spidata->wq, &wait); - spin_unlock_bh(&spidata->mutex); - schedule(); - remove_wait_queue(&spidata->wq, &wait); - - if(signal_pending(current)) - return 0; - - goto retry; - } - spidata->state = state; - - return 1; -} - -static inline void spiflash_done(void) -{ - spidata->state = FL_READY; - spin_unlock_bh(&spidata->mutex); - wake_up(&spidata->wq); -} - -static int -spiflash_erase (struct mtd_info *mtd,struct erase_info *instr) -{ - struct opcodes *ptr_opcode; - u32 temp, reg; - - /* sanity checks */ - if (instr->addr + instr->len > mtd->size) return (-EINVAL); - - if (!spiflash_wait_ready(FL_ERASING)) - return -EINTR; - - spiflash_sendcmd(SPI_WRITE_ENABLE, 0); - busy_wait((reg = spiflash_regread32(SPI_FLASH_CTL)) & SPI_CTL_BUSY, 0); - reg = spiflash_regread32(SPI_FLASH_CTL); - - ptr_opcode = &stm_opcodes[SPI_SECTOR_ERASE]; - temp = ((__u32)instr->addr << 8) | (__u32)(ptr_opcode->code); - spiflash_regwrite32(SPI_FLASH_OPCODE, temp); - - reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | ptr_opcode->tx_cnt | SPI_CTL_START; - spiflash_regwrite32(SPI_FLASH_CTL, reg); - - /* this will take some time */ - spin_unlock_bh(&spidata->mutex); - msleep(800); - spin_lock_bh(&spidata->mutex); - - busy_wait(spiflash_sendcmd(SPI_RD_STATUS, 0) & SPI_STATUS_WIP, 20); - spiflash_done(); - - instr->state = MTD_ERASE_DONE; - if (instr->callback) instr->callback (instr); - - return 0; -} - -static int -spiflash_read (struct mtd_info *mtd, loff_t from,size_t len,size_t *retlen,u_char *buf) -{ - u8 *read_addr; - - /* sanity checks */ - if (!len) return (0); - if (from + len > mtd->size) return (-EINVAL); - - /* we always read len bytes */ - *retlen = len; - - if (!spiflash_wait_ready(FL_READING)) - return -EINTR; - read_addr = (u8 *)(spidata->readaddr + from); - memcpy(buf, read_addr, len); - spiflash_done(); - - return 0; -} - -static int -spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u_char *buf) -{ - u32 opcode, bytes_left; - - *retlen = 0; - - /* sanity checks */ - if (!len) return (0); - if (to + len > mtd->size) return (-EINVAL); - - opcode = stm_opcodes[SPI_PAGE_PROGRAM].code; - bytes_left = len; - - do { - u32 xact_len, reg, page_offset, spi_data = 0; - - xact_len = MIN(bytes_left, sizeof(__u32)); - - /* 32-bit writes cannot span across a page boundary - * (256 bytes). This types of writes require two page - * program operations to handle it correctly. The STM part - * will write the overflow data to the beginning of the - * current page as opposed to the subsequent page. - */ - page_offset = (to & (STM_PAGE_SIZE - 1)) + xact_len; - - if (page_offset > STM_PAGE_SIZE) { - xact_len -= (page_offset - STM_PAGE_SIZE); - } - - if (!spiflash_wait_ready(FL_WRITING)) - return -EINTR; - - spiflash_sendcmd(SPI_WRITE_ENABLE, 0); - switch (xact_len) { - case 1: - spi_data = (u32) ((u8) *buf); - break; - case 2: - spi_data = (buf[1] << 8) | buf[0]; - break; - case 3: - spi_data = (buf[2] << 16) | (buf[1] << 8) | buf[0]; - break; - case 4: - spi_data = (buf[3] << 24) | (buf[2] << 16) | - (buf[1] << 8) | buf[0]; - break; - default: - spi_data = 0; - break; - } - - spiflash_regwrite32(SPI_FLASH_DATA, spi_data); - opcode = (opcode & SPI_OPCODE_MASK) | ((__u32)to << 8); - spiflash_regwrite32(SPI_FLASH_OPCODE, opcode); - - reg = spiflash_regread32(SPI_FLASH_CTL); - reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | (xact_len + 4) | SPI_CTL_START; - spiflash_regwrite32(SPI_FLASH_CTL, reg); - - /* give the chip some time before we start busy waiting */ - spin_unlock_bh(&spidata->mutex); - schedule(); - spin_lock_bh(&spidata->mutex); - - busy_wait(spiflash_sendcmd(SPI_RD_STATUS, 0) & SPI_STATUS_WIP, 0); - spiflash_done(); - - bytes_left -= xact_len; - to += xact_len; - buf += xact_len; - - *retlen += xact_len; - } while (bytes_left != 0); - - return 0; -} - - -#ifdef CONFIG_MTD_PARTITIONS -static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", "MyLoader", NULL }; -#endif - - -static int spiflash_probe(struct platform_device *pdev) -{ - int result = -1; - int index, num_parts; - struct mtd_info *mtd; - - spidata->mmraddr = ioremap_nocache(SPI_FLASH_MMR, SPI_FLASH_MMR_SIZE); - spin_lock_init(&spidata->mutex); - init_waitqueue_head(&spidata->wq); - spidata->state = FL_READY; - - if (!spidata->mmraddr) { - printk (KERN_WARNING SPIFLASH "Failed to map flash device\n"); - kfree(spidata); - spidata = NULL; - } - - mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL); - if (!mtd) { - kfree(spidata); - return -ENXIO; - } - - if (!(index = spiflash_probe_chip())) { - printk (KERN_WARNING SPIFLASH "Found no serial flash device\n"); - goto error; - } - - spidata->readaddr = ioremap_nocache(SPI_FLASH_READ, flashconfig_tbl[index].byte_cnt); - if (!spidata->readaddr) { - printk (KERN_WARNING SPIFLASH "Failed to map flash device\n"); - goto error; - } - - mtd->name = "spiflash"; - mtd->type = MTD_NORFLASH; - mtd->flags = (MTD_CAP_NORFLASH|MTD_WRITEABLE); - mtd->size = flashconfig_tbl[index].byte_cnt; - mtd->erasesize = flashconfig_tbl[index].sector_size; - mtd->writesize = 1; - mtd->numeraseregions = 0; - mtd->eraseregions = NULL; - mtd->erase = spiflash_erase; - mtd->read = spiflash_read; - mtd->write = spiflash_write; - mtd->owner = THIS_MODULE; - - /* parse redboot partitions */ - num_parts = parse_mtd_partitions(mtd, part_probe_types, &spidata->parsed_parts, 0); - if (!num_parts) - goto error; - - result = add_mtd_partitions(mtd, spidata->parsed_parts, num_parts); - spidata->mtd = mtd; - - return (result); - -error: - kfree(mtd); - kfree(spidata); - return -ENXIO; -} - -static int spiflash_remove (struct platform_device *pdev) -{ - del_mtd_partitions (spidata->mtd); - kfree(spidata->mtd); - return 0; -} - -struct platform_driver spiflash_driver = { - .driver.name = "spiflash", - .probe = spiflash_probe, - .remove = spiflash_remove, -}; - -int __init -spiflash_init (void) -{ - spidata = kmalloc(sizeof(struct spiflash_data), GFP_KERNEL); - if (!spidata) - return (-ENXIO); - - spin_lock_init(&spidata->mutex); - platform_driver_register(&spiflash_driver); - - return 0; -} - -void __exit -spiflash_exit (void) -{ - kfree(spidata); -} - -module_init (spiflash_init); -module_exit (spiflash_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("OpenWrt.org, Atheros Communications Inc"); -MODULE_DESCRIPTION("MTD driver for SPI Flash on Atheros SOC"); - diff --git a/target/linux/atheros/files-2.6.26/drivers/mtd/devices/spiflash.h b/target/linux/atheros/files-2.6.26/drivers/mtd/devices/spiflash.h deleted file mode 100644 index 146fd67f8c..0000000000 --- a/target/linux/atheros/files-2.6.26/drivers/mtd/devices/spiflash.h +++ /dev/null @@ -1,119 +0,0 @@ -/* - * SPI Flash Memory support header file. - * - * - * - * Copyright (c) 2005, Atheros Communications Inc. - * Copyright (C) 2006 FON Technology, SL. - * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org> - * - * This code is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ -#define FLASH_1MB 1 -#define FLASH_2MB 2 -#define FLASH_4MB 3 -#define FLASH_8MB 4 -#define FLASH_16MB 5 -#define MAX_FLASH 6 - -#define STM_PAGE_SIZE 256 - -#define SFI_WRITE_BUFFER_SIZE 4 -#define SFI_FLASH_ADDR_MASK 0x00ffffff - -#define STM_8MBIT_SIGNATURE 0x13 -#define STM_M25P80_BYTE_COUNT 1048576 -#define STM_M25P80_SECTOR_COUNT 16 -#define STM_M25P80_SECTOR_SIZE 0x10000 - -#define STM_16MBIT_SIGNATURE 0x14 -#define STM_M25P16_BYTE_COUNT 2097152 -#define STM_M25P16_SECTOR_COUNT 32 -#define STM_M25P16_SECTOR_SIZE 0x10000 - -#define STM_32MBIT_SIGNATURE 0x15 -#define STM_M25P32_BYTE_COUNT 4194304 -#define STM_M25P32_SECTOR_COUNT 64 -#define STM_M25P32_SECTOR_SIZE 0x10000 - -#define STM_64MBIT_SIGNATURE 0x16 -#define STM_M25P64_BYTE_COUNT 8388608 -#define STM_M25P64_SECTOR_COUNT 128 -#define STM_M25P64_SECTOR_SIZE 0x10000 - -#define STM_128MBIT_SIGNATURE 0x17 -#define STM_M25P128_BYTE_COUNT 16777216 -#define STM_M25P128_SECTOR_COUNT 256 -#define STM_M25P128_SECTOR_SIZE 0x10000 - -#define STM_1MB_BYTE_COUNT STM_M25P80_BYTE_COUNT -#define STM_1MB_SECTOR_COUNT STM_M25P80_SECTOR_COUNT -#define STM_1MB_SECTOR_SIZE STM_M25P80_SECTOR_SIZE -#define STM_2MB_BYTE_COUNT STM_M25P16_BYTE_COUNT -#define STM_2MB_SECTOR_COUNT STM_M25P16_SECTOR_COUNT -#define STM_2MB_SECTOR_SIZE STM_M25P16_SECTOR_SIZE -#define STM_4MB_BYTE_COUNT STM_M25P32_BYTE_COUNT -#define STM_4MB_SECTOR_COUNT STM_M25P32_SECTOR_COUNT -#define STM_4MB_SECTOR_SIZE STM_M25P32_SECTOR_SIZE -#define STM_8MB_BYTE_COUNT STM_M25P64_BYTE_COUNT -#define STM_8MB_SECTOR_COUNT STM_M25P64_SECTOR_COUNT -#define STM_8MB_SECTOR_SIZE STM_M25P64_SECTOR_SIZE -#define STM_16MB_BYTE_COUNT STM_M25P128_BYTE_COUNT -#define STM_16MB_SECTOR_COUNT STM_M25P128_SECTOR_COUNT -#define STM_16MB_SECTOR_SIZE STM_M25P128_SECTOR_SIZE - -/* - * ST Microelectronics Opcodes for Serial Flash - */ - -#define STM_OP_WR_ENABLE 0x06 /* Write Enable */ -#define STM_OP_WR_DISABLE 0x04 /* Write Disable */ -#define STM_OP_RD_STATUS 0x05 /* Read Status */ -#define STM_OP_WR_STATUS 0x01 /* Write Status */ -#define STM_OP_RD_DATA 0x03 /* Read Data */ -#define STM_OP_FAST_RD_DATA 0x0b /* Fast Read Data */ -#define STM_OP_PAGE_PGRM 0x02 /* Page Program */ -#define STM_OP_SECTOR_ERASE 0xd8 /* Sector Erase */ -#define STM_OP_BULK_ERASE 0xc7 /* Bulk Erase */ -#define STM_OP_DEEP_PWRDOWN 0xb9 /* Deep Power-Down Mode */ -#define STM_OP_RD_SIG 0xab /* Read Electronic Signature */ - -#define STM_STATUS_WIP 0x01 /* Write-In-Progress */ -#define STM_STATUS_WEL 0x02 /* Write Enable Latch */ -#define STM_STATUS_BP0 0x04 /* Block Protect 0 */ -#define STM_STATUS_BP1 0x08 /* Block Protect 1 */ -#define STM_STATUS_BP2 0x10 /* Block Protect 2 */ -#define STM_STATUS_SRWD 0x80 /* Status Register Write Disable */ - -/* - * SPI Flash Interface Registers - */ -#define AR531XPLUS_SPI_READ 0x08000000 -#define AR531XPLUS_SPI_MMR 0x11300000 -#define AR531XPLUS_SPI_MMR_SIZE 12 - -#define AR531XPLUS_SPI_CTL 0x00 -#define AR531XPLUS_SPI_OPCODE 0x04 -#define AR531XPLUS_SPI_DATA 0x08 - -#define SPI_FLASH_READ AR531XPLUS_SPI_READ -#define SPI_FLASH_MMR AR531XPLUS_SPI_MMR -#define SPI_FLASH_MMR_SIZE AR531XPLUS_SPI_MMR_SIZE -#define SPI_FLASH_CTL AR531XPLUS_SPI_CTL -#define SPI_FLASH_OPCODE AR531XPLUS_SPI_OPCODE -#define SPI_FLASH_DATA AR531XPLUS_SPI_DATA - -#define SPI_CTL_START 0x00000100 -#define SPI_CTL_BUSY 0x00010000 -#define SPI_CTL_TXCNT_MASK 0x0000000f -#define SPI_CTL_RXCNT_MASK 0x000000f0 -#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff -#define SPI_CTL_SIZE_MASK 0x00060000 - -#define SPI_CTL_CLK_SEL_MASK 0x03000000 -#define SPI_OPCODE_MASK 0x000000ff - -#define SPI_STATUS_WIP STM_STATUS_WIP diff --git a/target/linux/atheros/files-2.6.26/drivers/net/ar2313/Makefile b/target/linux/atheros/files-2.6.26/drivers/net/ar2313/Makefile deleted file mode 100644 index 9eb63e46b6..0000000000 --- a/target/linux/atheros/files-2.6.26/drivers/net/ar2313/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for the AR2313 ethernet driver -# - -obj-$(CONFIG_AR2313) += ar2313.o diff --git a/target/linux/atheros/files-2.6.26/drivers/net/ar2313/ar2313.c b/target/linux/atheros/files-2.6.26/drivers/net/ar2313/ar2313.c deleted file mode 100644 index 727d190b37..0000000000 --- a/target/linux/atheros/files-2.6.26/drivers/net/ar2313/ar2313.c +++ /dev/null @@ -1,1409 +0,0 @@ -/* - * ar2313.c: Linux driver for the Atheros AR231x Ethernet device. - * - * Copyright (C) 2004 by Sameer Dekate <sdekate@arubanetworks.com> - * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org> - * Copyright (C) 2006-2007 Felix Fietkau <nbd@openwrt.org> - * - * Thanks to Atheros for providing hardware and documentation - * enabling me to write this driver. - * - * 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. - * - * Additional credits: - * This code is taken from John Taylor's Sibyte driver and then - * modified for the AR2313. - */ - -#include <linux/autoconf.h> -#include <linux/module.h> -#include <linux/version.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/pci.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/mm.h> -#include <linux/highmem.h> -#include <linux/sockios.h> -#include <linux/pkt_sched.h> -#include <linux/compile.h> -#include <linux/mii.h> -#include <linux/phy.h> -#include <linux/ethtool.h> -#include <linux/ctype.h> -#include <linux/platform_device.h> - -#include <net/sock.h> -#include <net/ip.h> - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/byteorder.h> -#include <asm/uaccess.h> -#include <asm/bootinfo.h> - -#define AR2313_MTU 1692 -#define AR2313_PRIOS 1 -#define AR2313_QUEUES (2*AR2313_PRIOS) -#define AR2313_DESCR_ENTRIES 64 - -#undef INDEX_DEBUG -#define DEBUG 0 -#define DEBUG_TX 0 -#define DEBUG_RX 0 -#define DEBUG_INT 0 -#define DEBUG_MC 0 -#define DEBUG_ERR 1 - -#ifndef min -#define min(a,b) (((a)<(b))?(a):(b)) -#endif - -#ifndef SMP_CACHE_BYTES -#define SMP_CACHE_BYTES L1_CACHE_BYTES -#endif - -#define AR2313_MBOX_SET_BIT 0x8 - -#define BOARD_IDX_STATIC 0 -#define BOARD_IDX_OVERFLOW -1 - -#include "dma.h" -#include "ar2313.h" - -/* - * New interrupt handler strategy: - * - * An old interrupt handler worked using the traditional method of - * replacing an skbuff with a new one when a packet arrives. However - * the rx rings do not need to contain a static number of buffer - * descriptors, thus it makes sense to move the memory allocation out - * of the main interrupt handler and do it in a bottom half handler - * and only allocate new buffers when the number of buffers in the - * ring is below a certain threshold. In order to avoid starving the - * NIC under heavy load it is however necessary to force allocation - * when hitting a minimum threshold. The strategy for alloction is as - * follows: - * - * RX_LOW_BUF_THRES - allocate buffers in the bottom half - * RX_PANIC_LOW_THRES - we are very low on buffers, allocate - * the buffers in the interrupt handler - * RX_RING_THRES - maximum number of buffers in the rx ring - * - * One advantagous side effect of this allocation approach is that the - * entire rx processing can be done without holding any spin lock - * since the rx rings and registers are totally independent of the tx - * ring and its registers. This of course includes the kmalloc's of - * new skb's. Thus start_xmit can run in parallel with rx processing - * and the memory allocation on SMP systems. - * - * Note that running the skb reallocation in a bottom half opens up - * another can of races which needs to be handled properly. In - * particular it can happen that the interrupt handler tries to run - * the reallocation while the bottom half is either running on another - * CPU or was interrupted on the same CPU. To get around this the - * driver uses bitops to prevent the reallocation routines from being - * reentered. - * - * TX handling can also be done without holding any spin lock, wheee - * this is fun! since tx_csm is only written to by the interrupt - * handler. - */ - -/* - * Threshold values for RX buffer allocation - the low water marks for - * when to start refilling the rings are set to 75% of the ring - * sizes. It seems to make sense to refill the rings entirely from the - * intrrupt handler once it gets below the panic threshold, that way - * we don't risk that the refilling is moved to another CPU when the - * one running the interrupt handler just got the slab code hot in its - * cache. - */ -#define RX_RING_SIZE AR2313_DESCR_ENTRIES -#define RX_PANIC_THRES (RX_RING_SIZE/4) -#define RX_LOW_THRES ((3*RX_RING_SIZE)/4) -#define CRC_LEN 4 -#define RX_OFFSET 2 - -#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) -#define VLAN_HDR 4 -#else -#define VLAN_HDR 0 -#endif - -#define AR2313_BUFSIZE (AR2313_MTU + VLAN_HDR + ETH_HLEN + CRC_LEN + RX_OFFSET) - -#ifdef MODULE -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Sameer Dekate <sdekate@arubanetworks.com>, Imre Kaloz <kaloz@openwrt.org>, Felix Fietkau <nbd@openwrt.org>"); -MODULE_DESCRIPTION("AR2313 Ethernet driver"); -#endif - -#define virt_to_phys(x) ((u32)(x) & 0x1fffffff) - -// prototypes -#ifdef TX_TIMEOUT -static void ar2313_tx_timeout(struct net_device *dev); -#endif -static void ar2313_halt(struct net_device *dev); -static void rx_tasklet_func(unsigned long data); -static void rx_tasklet_cleanup(struct net_device *dev); -static void ar2313_multicast_list(struct net_device *dev); - -static int mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum); -static int mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum, u16 value); -static int mdiobus_reset(struct mii_bus *bus); -static int mdiobus_probe (struct net_device *dev); -static void ar2313_adjust_link(struct net_device *dev); - -#ifndef ERR -#define ERR(fmt, args...) printk("%s: " fmt, __func__, ##args) -#endif - - -int __init ar2313_probe(struct platform_device *pdev) -{ - struct net_device *dev; - struct ar2313_private *sp; - struct resource *res; - unsigned long ar_eth_base; - char buf[64]; - - dev = alloc_etherdev(sizeof(struct ar2313_private)); - - if (dev == NULL) { - printk(KERN_ERR - "ar2313: Unable to allocate net_device structure!\n"); - return -ENOMEM; - } - - platform_set_drvdata(pdev, dev); - - sp = netdev_priv(dev); - sp->dev = dev; - sp->cfg = pdev->dev.platform_data; - - sprintf(buf, "eth%d_membase", pdev->id); - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, buf); - if (!res) - return -ENODEV; - - sp->link = 0; - ar_eth_base = res->start; - sp->phy = sp->cfg->phy; - - sprintf(buf, "eth%d_irq", pdev->id); - dev->irq = platform_get_irq_byname(pdev, buf); - - spin_lock_init(&sp->lock); - - /* initialize func pointers */ - dev->open = &ar2313_open; - dev->stop = &ar2313_close; - dev->hard_start_xmit = &ar2313_start_xmit; - - dev->set_multicast_list = &ar2313_multicast_list; -#ifdef TX_TIMEOUT - dev->tx_timeout = ar2313_tx_timeout; - dev->watchdog_timeo = AR2313_TX_TIMEOUT; -#endif - dev->do_ioctl = &ar2313_ioctl; - - // SAMEER: do we need this? - dev->features |= NETIF_F_HIGHDMA; - - tasklet_init(&sp->rx_tasklet, rx_tasklet_func, (unsigned long) dev); - tasklet_disable(&sp->rx_tasklet); - - sp->eth_regs = - ioremap_nocache(virt_to_phys(ar_eth_base), sizeof(*sp->eth_regs)); - if (!sp->eth_regs) { - printk("Can't remap eth registers\n"); - return (-ENXIO); - } - - /* - * When there's only one MAC, PHY regs are typically on ENET0, - * even though the MAC might be on ENET1. - * Needto remap PHY regs separately in this case - */ - if (virt_to_phys(ar_eth_base) == virt_to_phys(sp->phy_regs)) - sp->phy_regs = sp->eth_regs; - else { - sp->phy_regs = - ioremap_nocache(virt_to_phys(sp->cfg->phy_base), - sizeof(*sp->phy_regs)); - if (!sp->phy_regs) { - printk("Can't remap phy registers\n"); - return (-ENXIO); - } - } - - sp->dma_regs = - ioremap_nocache(virt_to_phys(ar_eth_base + 0x1000), - sizeof(*sp->dma_regs)); - dev->base_addr = (unsigned int) sp->dma_regs; - if (!sp->dma_regs) { - printk("Can't remap DMA registers\n"); - return (-ENXIO); - } - - sp->int_regs = ioremap_nocache(virt_to_phys(sp->cfg->reset_base), 4); - if (!sp->int_regs) { - printk("Can't remap INTERRUPT registers\n"); - return (-ENXIO); - } - - strncpy(sp->name, "Atheros AR231x", sizeof(sp->name) - 1); - sp->name[sizeof(sp->name) - 1] = '\0'; - memcpy(dev->dev_addr, sp->cfg->macaddr, 6); - sp->board_idx = BOARD_IDX_STATIC; - - if (ar2313_init(dev)) { - /* - * ar2313_init() calls ar2313_init_cleanup() on error. - */ - kfree(dev); - return -ENODEV; - } - - if (register_netdev(dev)) { - printk("%s: register_netdev failed\n", __func__); - return -1; - } - - printk("%s: %s: %02x:%02x:%02x:%02x:%02x:%02x, irq %d\n", - dev->name, sp->name, - dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], - dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5], dev->irq); - - sp->mii_bus.priv = dev; - sp->mii_bus.read = mdiobus_read; - sp->mii_bus.write = mdiobus_write; - sp->mii_bus.reset = mdiobus_reset; - sp->mii_bus.name = "ar2313_eth_mii"; - sp->mii_bus.id = 0; - sp->mii_bus.irq = kmalloc(sizeof(int), GFP_KERNEL); - *sp->mii_bus.irq = PHY_POLL; - - mdiobus_register(&sp->mii_bus); - - if (mdiobus_probe(dev) != 0) { - printk(KERN_ERR "ar2313: mdiobus_probe failed"); - rx_tasklet_cleanup(dev); - ar2313_init_cleanup(dev); - unregister_netdev(dev); - kfree(dev); - } else { - /* start link poll timer */ - ar2313_setup_timer(dev); - } - - return 0; -} - -#if 0 -static void ar2313_dump_regs(struct net_device *dev) -{ - unsigned int *ptr, i; - struct ar2313_private *sp = netdev_priv(dev); - - ptr = (unsigned int *) sp->eth_regs; - for (i = 0; i < (sizeof(ETHERNET_STRUCT) / sizeof(unsigned int)); - i++, ptr++) { - printk("ENET: %08x = %08x\n", (int) ptr, *ptr); - } - - ptr = (unsigned int *) sp->dma_regs; - for (i = 0; i < (sizeof(DMA) / sizeof(unsigned int)); i++, ptr++) { - printk("DMA: %08x = %08x\n", (int) ptr, *ptr); - } - - ptr = (unsigned int *) sp->int_regs; - for (i = 0; i < (sizeof(INTERRUPT) / sizeof(unsigned int)); i++, ptr++) { - printk("INT: %08x = %08x\n", (int) ptr, *ptr); - } - - for (i = 0; i < AR2313_DESCR_ENTRIES; i++) { - ar2313_descr_t *td = &sp->tx_ring[i]; - printk("Tx desc %2d: %08x %08x %08x %08x\n", i, - td->status, td->devcs, td->addr, td->descr); - } -} -#endif - -#ifdef TX_TIMEOUT -static void ar2313_tx_timeout(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - unsigned long flags; - -#if DEBUG_TX - printk("Tx timeout\n"); -#endif - spin_lock_irqsave(&sp->lock, flags); - ar2313_restart(dev); - spin_unlock_irqrestore(&sp->lock, flags); -} -#endif - -#if DEBUG_MC -static void printMcList(struct net_device *dev) -{ - struct dev_mc_list *list = dev->mc_list; - int num = 0, i; - while (list) { - printk("%d MC ADDR ", num); - for (i = 0; i < list->dmi_addrlen; i++) { - printk(":%02x", list->dmi_addr[i]); - } - list = list->next; - printk("\n"); - } -} -#endif - -/* - * Set or clear the multicast filter for this adaptor. - * THIS IS ABSOLUTE CRAP, disabled - */ -static void ar2313_multicast_list(struct net_device *dev) -{ - /* - * Always listen to broadcasts and - * treat IFF bits independently - */ - struct ar2313_private *sp = netdev_priv(dev); - unsigned int recognise; - - recognise = sp->eth_regs->mac_control; - - if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */ - recognise |= MAC_CONTROL_PR; - } else { - recognise &= ~MAC_CONTROL_PR; - } - - if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 15)) { -#if DEBUG_MC - printMcList(dev); - printk("%s: all MULTICAST mc_count %d\n", __FUNCTION__, - dev->mc_count); -#endif - recognise |= MAC_CONTROL_PM; /* all multicast */ - } else if (dev->mc_count > 0) { -#if DEBUG_MC - printMcList(dev); - printk("%s: mc_count %d\n", __FUNCTION__, dev->mc_count); -#endif - recognise |= MAC_CONTROL_PM; /* for the time being */ - } -#if DEBUG_MC - printk("%s: setting %08x to %08x\n", __FUNCTION__, (int) sp->eth_regs, - recognise); -#endif - - sp->eth_regs->mac_control = recognise; -} - -static void rx_tasklet_cleanup(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - - /* - * Tasklet may be scheduled. Need to get it removed from the list - * since we're about to free the struct. - */ - - sp->unloading = 1; - tasklet_enable(&sp->rx_tasklet); - tasklet_kill(&sp->rx_tasklet); -} - -static int __exit ar2313_remove(struct platform_device *pdev) -{ - struct net_device *dev = platform_get_drvdata(pdev); - rx_tasklet_cleanup(dev); - ar2313_init_cleanup(dev); - unregister_netdev(dev); - kfree(dev); - return 0; -} - - -/* - * Restart the AR2313 ethernet controller. - */ -static int ar2313_restart(struct net_device *dev) -{ - /* disable interrupts */ - disable_irq(dev->irq); - - /* stop mac */ - ar2313_halt(dev); - - /* initialize */ - ar2313_init(dev); - - /* enable interrupts */ - enable_irq(dev->irq); - - return 0; -} - -static struct platform_driver ar2313_driver = { - .driver.name = "ar531x-eth", - .probe = ar2313_probe, - .remove = ar2313_remove, -}; - -int __init ar2313_module_init(void) -{ - return platform_driver_register(&ar2313_driver); -} - -void __exit ar2313_module_cleanup(void) -{ - platform_driver_unregister(&ar2313_driver); -} - -module_init(ar2313_module_init); -module_exit(ar2313_module_cleanup); - - -static void ar2313_free_descriptors(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - if (sp->rx_ring != NULL) { - kfree((void *) KSEG0ADDR(sp->rx_ring)); - sp->rx_ring = NULL; - sp->tx_ring = NULL; - } -} - - -static int ar2313_allocate_descriptors(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - int size; - int j; - ar2313_descr_t *space; - - if (sp->rx_ring != NULL) { - printk("%s: already done.\n", __FUNCTION__); - return 0; - } - - size = - (sizeof(ar2313_descr_t) * (AR2313_DESCR_ENTRIES * AR2313_QUEUES)); - space = kmalloc(size, GFP_KERNEL); - if (space == NULL) - return 1; - - /* invalidate caches */ - dma_cache_inv((unsigned int) space, size); - - /* now convert pointer to KSEG1 */ - space = (ar2313_descr_t *) KSEG1ADDR(space); - - memset((void *) space, 0, size); - - sp->rx_ring = space; - space += AR2313_DESCR_ENTRIES; - - sp->tx_ring = space; - space += AR2313_DESCR_ENTRIES; - - /* Initialize the transmit Descriptors */ - for (j = 0; j < AR2313_DESCR_ENTRIES; j++) { - ar2313_descr_t *td = &sp->tx_ring[j]; - td->status = 0; - td->devcs = DMA_TX1_CHAINED; - td->addr = 0; - td->descr = - virt_to_phys(&sp-> - tx_ring[(j + 1) & (AR2313_DESCR_ENTRIES - 1)]); - } - - return 0; -} - - -/* - * Generic cleanup handling data allocated during init. Used when the - * module is unloaded or if an error occurs during initialization - */ -static void ar2313_init_cleanup(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - struct sk_buff *skb; - int j; - - ar2313_free_descriptors(dev); - - if (sp->eth_regs) - iounmap((void *) sp->eth_regs); - if (sp->dma_regs) - iounmap((void *) sp->dma_regs); - - if (sp->rx_skb) { - for (j = 0; j < AR2313_DESCR_ENTRIES; j++) { - skb = sp->rx_skb[j]; - if (skb) { - sp->rx_skb[j] = NULL; - dev_kfree_skb(skb); - } - } - kfree(sp->rx_skb); - sp->rx_skb = NULL; - } - - if (sp->tx_skb) { - for (j = 0; j < AR2313_DESCR_ENTRIES; j++) { - skb = sp->tx_skb[j]; - if (skb) { - sp->tx_skb[j] = NULL; - dev_kfree_skb(skb); - } - } - kfree(sp->tx_skb); - sp->tx_skb = NULL; - } -} - -static int ar2313_setup_timer(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - - init_timer(&sp->link_timer); - - sp->link_timer.function = ar2313_link_timer_fn; - sp->link_timer.data = (int) dev; - sp->link_timer.expires = jiffies + HZ; - - add_timer(&sp->link_timer); - return 0; - -} - -static void ar2313_link_timer_fn(unsigned long data) -{ - struct net_device *dev = (struct net_device *) data; - struct ar2313_private *sp = netdev_priv(dev); - - // see if the link status changed - // This was needed to make sure we set the PHY to the - // autonegotiated value of half or full duplex. - ar2313_check_link(dev); - - // Loop faster when we don't have link. - // This was needed to speed up the AP bootstrap time. - if (sp->link == 0) { - mod_timer(&sp->link_timer, jiffies + HZ / 2); - } else { - mod_timer(&sp->link_timer, jiffies + LINK_TIMER); - } -} - -static void ar2313_check_link(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - u16 phyData; - - phyData = mdiobus_read(&sp->mii_bus, sp->phy, MII_BMSR); - if (sp->phyData != phyData) { - if (phyData & BMSR_LSTATUS) { - /* link is present, ready link partner ability to deterine - duplexity */ - int duplex = 0; - u16 reg; - - sp->link = 1; - reg = mdiobus_read(&sp->mii_bus, sp->phy, MII_BMCR); - if (reg & BMCR_ANENABLE) { - /* auto neg enabled */ - reg = mdiobus_read(&sp->mii_bus, sp->phy, MII_LPA); - duplex = (reg & (LPA_100FULL | LPA_10FULL)) ? 1 : 0; - } else { - /* no auto neg, just read duplex config */ - duplex = (reg & BMCR_FULLDPLX) ? 1 : 0; - } - - printk(KERN_INFO "%s: Configuring MAC for %s duplex\n", - dev->name, (duplex) ? "full" : "half"); - - if (duplex) { - /* full duplex */ - sp->eth_regs->mac_control = - ((sp->eth_regs-> - mac_control | MAC_CONTROL_F) & ~MAC_CONTROL_DRO); - } else { - /* half duplex */ - sp->eth_regs->mac_control = - ((sp->eth_regs-> - mac_control | MAC_CONTROL_DRO) & ~MAC_CONTROL_F); - } - } else { - /* no link */ - sp->link = 0; - } - sp->phyData = phyData; - } -} - -static int ar2313_reset_reg(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - unsigned int ethsal, ethsah; - unsigned int flags; - - *sp->int_regs |= sp->cfg->reset_mac; - mdelay(10); - *sp->int_regs &= ~sp->cfg->reset_mac; - mdelay(10); - *sp->int_regs |= sp->cfg->reset_phy; - mdelay(10); - *sp->int_regs &= ~sp->cfg->reset_phy; - mdelay(10); - - sp->dma_regs->bus_mode = (DMA_BUS_MODE_SWR); - mdelay(10); - sp->dma_regs->bus_mode = - ((32 << DMA_BUS_MODE_PBL_SHIFT) | DMA_BUS_MODE_BLE); - - /* enable interrupts */ - sp->dma_regs->intr_ena = (DMA_STATUS_AIS | - DMA_STATUS_NIS | - DMA_STATUS_RI | - DMA_STATUS_TI | DMA_STATUS_FBE); - sp->dma_regs->xmt_base = virt_to_phys(sp->tx_ring); - sp->dma_regs->rcv_base = virt_to_phys(sp->rx_ring); - sp->dma_regs->control = - (DMA_CONTROL_SR | DMA_CONTROL_ST | DMA_CONTROL_SF); - - sp->eth_regs->flow_control = (FLOW_CONTROL_FCE); - sp->eth_regs->vlan_tag = (0x8100); - - /* Enable Ethernet Interface */ - flags = (MAC_CONTROL_TE | /* transmit enable */ - MAC_CONTROL_PM | /* pass mcast */ - MAC_CONTROL_F | /* full duplex */ - MAC_CONTROL_HBD); /* heart beat disabled */ - - if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */ - flags |= MAC_CONTROL_PR; - } - sp->eth_regs->mac_control = flags; - - /* Set all Ethernet station address registers to their initial values */ - ethsah = ((((u_int) (dev->dev_addr[5]) << 8) & (u_int) 0x0000FF00) | - (((u_int) (dev->dev_addr[4]) << 0) & (u_int) 0x000000FF)); - - ethsal = ((((u_int) (dev->dev_addr[3]) << 24) & (u_int) 0xFF000000) | - (((u_int) (dev->dev_addr[2]) << 16) & (u_int) 0x00FF0000) | - (((u_int) (dev->dev_addr[1]) << 8) & (u_int) 0x0000FF00) | - (((u_int) (dev->dev_addr[0]) << 0) & (u_int) 0x000000FF)); - - sp->eth_regs->mac_addr[0] = ethsah; - sp->eth_regs->mac_addr[1] = ethsal; - - mdelay(10); - - return (0); -} - - -static int ar2313_init(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - int ecode = 0; - - /* - * Allocate descriptors - */ - if (ar2313_allocate_descriptors(dev)) { - printk("%s: %s: ar2313_allocate_descriptors failed\n", - dev->name, __FUNCTION__); - ecode = -EAGAIN; - goto init_error; - } - - /* - * Get the memory for the skb rings. - */ - if (sp->rx_skb == NULL) { - sp->rx_skb = - kmalloc(sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES, - GFP_KERNEL); - if (!(sp->rx_skb)) { - printk("%s: %s: rx_skb kmalloc failed\n", - dev->name, __FUNCTION__); - ecode = -EAGAIN; - goto init_error; - } - } - memset(sp->rx_skb, 0, sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES); - - if (sp->tx_skb == NULL) { - sp->tx_skb = - kmalloc(sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES, - GFP_KERNEL); - if (!(sp->tx_skb)) { - printk("%s: %s: tx_skb kmalloc failed\n", - dev->name, __FUNCTION__); - ecode = -EAGAIN; - goto init_error; - } - } - memset(sp->tx_skb, 0, sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES); - - /* - * Set tx_csm before we start receiving interrupts, otherwise - * the interrupt handler might think it is supposed to process - * tx ints before we are up and running, which may cause a null - * pointer access in the int handler. - */ - sp->rx_skbprd = 0; - sp->cur_rx = 0; - sp->tx_prd = 0; - sp->tx_csm = 0; - - /* - * Zero the stats before starting the interface - */ - memset(&dev->stats, 0, sizeof(dev->stats)); - - /* - * We load the ring here as there seem to be no way to tell the - * firmware to wipe the ring without re-initializing it. - */ - ar2313_load_rx_ring(dev, RX_RING_SIZE); - - /* - * Init hardware - */ - ar2313_reset_reg(dev); - - /* - * Get the IRQ - */ - ecode = - request_irq(dev->irq, &ar2313_interrupt, - IRQF_SHARED | IRQF_DISABLED | IRQF_SAMPLE_RANDOM, - dev->name, dev); - if (ecode) { - printk(KERN_WARNING "%s: %s: Requested IRQ %d is busy\n", - dev->name, __FUNCTION__, dev->irq); - goto init_error; - } - - - tasklet_enable(&sp->rx_tasklet); - - return 0; - - init_error: - ar2313_init_cleanup(dev); - return ecode; -} - -/* - * Load the rx ring. - * - * Loading rings is safe without holding the spin lock since this is - * done only before the device is enabled, thus no interrupts are - * generated and by the interrupt handler/tasklet handler. - */ -static void ar2313_load_rx_ring(struct net_device *dev, int nr_bufs) -{ - - struct ar2313_private *sp = netdev_priv(dev); - short i, idx; - - idx = sp->rx_skbprd; - - for (i = 0; i < nr_bufs; i++) { - struct sk_buff *skb; - ar2313_descr_t *rd; - - if (sp->rx_skb[idx]) { -#if DEBUG_RX - printk(KERN_INFO "ar2313 rx refill full\n"); -#endif /* DEBUG */ - break; - } - // partha: create additional room for the second GRE fragment - skb = alloc_skb(AR2313_BUFSIZE + 128, GFP_ATOMIC); - if (!skb) { - printk("\n\n\n\n %s: No memory in system\n\n\n\n", - __FUNCTION__); - break; - } - // partha: create additional room in the front for tx pkt capture - skb_reserve(skb, 32); - - /* - * Make sure IP header starts on a fresh cache line. - */ - skb->dev = dev; - skb_reserve(skb, RX_OFFSET); - sp->rx_skb[idx] = skb; - - rd = (ar2313_descr_t *) & sp->rx_ring[idx]; - - /* initialize dma descriptor */ - rd->devcs = ((AR2313_BUFSIZE << DMA_RX1_BSIZE_SHIFT) | - DMA_RX1_CHAINED); - rd->addr = virt_to_phys(skb->data); - rd->descr = - virt_to_phys(&sp-> - rx_ring[(idx + 1) & (AR2313_DESCR_ENTRIES - 1)]); - rd->status = DMA_RX_OWN; - - idx = DSC_NEXT(idx); - } - - if (!i) { -#if DEBUG_ERR - printk(KERN_INFO - "Out of memory when allocating standard receive buffers\n"); -#endif /* DEBUG */ - } else { - sp->rx_skbprd = idx; - } - - return; -} - -#define AR2313_MAX_PKTS_PER_CALL 64 - -static int ar2313_rx_int(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - struct sk_buff *skb, *skb_new; - ar2313_descr_t *rxdesc; - unsigned int status; - u32 idx; - int pkts = 0; - int rval; - - idx = sp->cur_rx; - - /* process at most the entire ring and then wait for another interrupt - */ - while (1) { - - rxdesc = &sp->rx_ring[idx]; - status = rxdesc->status; - if (status & DMA_RX_OWN) { - /* SiByte owns descriptor or descr not yet filled in */ - rval = 0; - break; - } - - if (++pkts > AR2313_MAX_PKTS_PER_CALL) { - rval = 1; - break; - } -#if DEBUG_RX - printk("index %d\n", idx); - printk("RX status %08x\n", rxdesc->status); - printk("RX devcs %08x\n", rxdesc->devcs); - printk("RX addr %08x\n", rxdesc->addr); - printk("RX descr %08x\n", rxdesc->descr); -#endif - - if ((status & (DMA_RX_ERROR | DMA_RX_ERR_LENGTH)) && - (!(status & DMA_RX_LONG))) { -#if DEBUG_RX - printk("%s: rx ERROR %08x\n", __FUNCTION__, status); -#endif - dev->stats.rx_errors++; - dev->stats.rx_dropped++; - - /* add statistics counters */ - if (status & DMA_RX_ERR_CRC) - dev->stats.rx_crc_errors++; - if (status & DMA_RX_ERR_COL) - dev->stats.rx_over_errors++; - if (status & DMA_RX_ERR_LENGTH) - dev->stats.rx_length_errors++; - if (status & DMA_RX_ERR_RUNT) - dev->stats.rx_over_errors++; - if (status & DMA_RX_ERR_DESC) - dev->stats.rx_over_errors++; - - } else { - /* alloc new buffer. */ - skb_new = dev_alloc_skb(AR2313_BUFSIZE + RX_OFFSET + 128); - if (skb_new != NULL) { - - skb = sp->rx_skb[idx]; - /* set skb */ - skb_put(skb, - ((status >> DMA_RX_LEN_SHIFT) & 0x3fff) - CRC_LEN); - - dev->stats.rx_bytes += skb->len; - skb->protocol = eth_type_trans(skb, dev); - /* pass the packet to upper layers */ - netif_rx(skb); - - skb_new->dev = dev; - /* 16 bit align */ - skb_reserve(skb_new, RX_OFFSET + 32); - /* reset descriptor's curr_addr */ - rxdesc->addr = virt_to_phys(skb_new->data); - - dev->stats.rx_packets++; - sp->rx_skb[idx] = skb_new; - } else { - dev->stats.rx_dropped++; - } - } - - rxdesc->devcs = ((AR2313_BUFSIZE << DMA_RX1_BSIZE_SHIFT) | - DMA_RX1_CHAINED); - rxdesc->status = DMA_RX_OWN; - - idx = DSC_NEXT(idx); - } - - sp->cur_rx = idx; - - return rval; -} - - -static void ar2313_tx_int(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - u32 idx; - struct sk_buff *skb; - ar2313_descr_t *txdesc; - unsigned int status = 0; - - idx = sp->tx_csm; - - while (idx != sp->tx_prd) { - - txdesc = &sp->tx_ring[idx]; - -#if DEBUG_TX - printk - ("%s: TXINT: csm=%d idx=%d prd=%d status=%x devcs=%x addr=%08x descr=%x\n", - dev->name, sp->tx_csm, idx, sp->tx_prd, txdesc->status, - txdesc->devcs, txdesc->addr, txdesc->descr); -#endif /* DEBUG */ - - if ((status = txdesc->status) & DMA_TX_OWN) { - /* ar2313 dma still owns descr */ - break; - } - /* done with this descriptor */ - dma_unmap_single(NULL, txdesc->addr, - txdesc->devcs & DMA_TX1_BSIZE_MASK, - DMA_TO_DEVICE); - txdesc->status = 0; - - if (status & DMA_TX_ERROR) { - dev->stats.tx_errors++; - dev->stats.tx_dropped++; - if (status & DMA_TX_ERR_UNDER) - dev->stats.tx_fifo_errors++; - if (status & DMA_TX_ERR_HB) - dev->stats.tx_heartbeat_errors++; - if (status & (DMA_TX_ERR_LOSS | DMA_TX_ERR_LINK)) - dev->stats.tx_carrier_errors++; - if (status & (DMA_TX_ERR_LATE | - DMA_TX_ERR_COL | - DMA_TX_ERR_JABBER | DMA_TX_ERR_DEFER)) - dev->stats.tx_aborted_errors++; - } else { - /* transmit OK */ - dev->stats.tx_packets++; - } - - skb = sp->tx_skb[idx]; - sp->tx_skb[idx] = NULL; - idx = DSC_NEXT(idx); - dev->stats.tx_bytes += skb->len; - dev_kfree_skb_irq(skb); - } - - sp->tx_csm = idx; - - return; -} - - -static void rx_tasklet_func(unsigned long data) -{ - struct net_device *dev = (struct net_device *) data; - struct ar2313_private *sp = netdev_priv(dev); - - if (sp->unloading) { - return; - } - - if (ar2313_rx_int(dev)) { - tasklet_hi_schedule(&sp->rx_tasklet); - } else { - unsigned long flags; - spin_lock_irqsave(&sp->lock, flags); - sp->dma_regs->intr_ena |= DMA_STATUS_RI; - spin_unlock_irqrestore(&sp->lock, flags); - } -} - -static void rx_schedule(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - - sp->dma_regs->intr_ena &= ~DMA_STATUS_RI; - - tasklet_hi_schedule(&sp->rx_tasklet); -} - -static irqreturn_t ar2313_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = (struct net_device *) dev_id; - struct ar2313_private *sp = netdev_priv(dev); - unsigned int status, enabled; - - /* clear interrupt */ - /* - * Don't clear RI bit if currently disabled. - */ - status = sp->dma_regs->status; - enabled = sp->dma_regs->intr_ena; - sp->dma_regs->status = status & enabled; - - if (status & DMA_STATUS_NIS) { - /* normal status */ - /* - * Don't schedule rx processing if interrupt - * is already disabled. - */ - if (status & enabled & DMA_STATUS_RI) { - /* receive interrupt */ - rx_schedule(dev); - } - if (status & DMA_STATUS_TI) { - /* transmit interrupt */ - ar2313_tx_int(dev); - } - } - - if (status & DMA_STATUS_AIS) { -#if DEBUG_INT - printk("%s: AIS set %08x & %x\n", __FUNCTION__, - status, (DMA_STATUS_FBE | DMA_STATUS_TPS)); -#endif - /* abnormal status */ - if (status & (DMA_STATUS_FBE | DMA_STATUS_TPS)) { - ar2313_restart(dev); - } - } - return IRQ_HANDLED; -} - - -static int ar2313_open(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - unsigned int ethsal, ethsah; - - /* reset the hardware, in case the MAC address changed */ - ethsah = ((((u_int) (dev->dev_addr[5]) << 8) & (u_int) 0x0000FF00) | - (((u_int) (dev->dev_addr[4]) << 0) & (u_int) 0x000000FF)); - - ethsal = ((((u_int) (dev->dev_addr[3]) << 24) & (u_int) 0xFF000000) | - (((u_int) (dev->dev_addr[2]) << 16) & (u_int) 0x00FF0000) | - (((u_int) (dev->dev_addr[1]) << 8) & (u_int) 0x0000FF00) | - (((u_int) (dev->dev_addr[0]) << 0) & (u_int) 0x000000FF)); - - sp->eth_regs->mac_addr[0] = ethsah; - sp->eth_regs->mac_addr[1] = ethsal; - - mdelay(10); - - dev->mtu = 1500; - netif_start_queue(dev); - - sp->eth_regs->mac_control |= MAC_CONTROL_RE; - - return 0; -} - -static void ar2313_halt(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - int j; - - tasklet_disable(&sp->rx_tasklet); - - /* kill the MAC */ - sp->eth_regs->mac_control &= ~(MAC_CONTROL_RE | /* disable Receives */ - MAC_CONTROL_TE); /* disable Transmits */ - /* stop dma */ - sp->dma_regs->control = 0; - sp->dma_regs->bus_mode = DMA_BUS_MODE_SWR; - - /* place phy and MAC in reset */ - *sp->int_regs |= (sp->cfg->reset_mac | sp->cfg->reset_phy); - - /* free buffers on tx ring */ - for (j = 0; j < AR2313_DESCR_ENTRIES; j++) { - struct sk_buff *skb; - ar2313_descr_t *txdesc; - - txdesc = &sp->tx_ring[j]; - txdesc->descr = 0; - - skb = sp->tx_skb[j]; - if (skb) { - dev_kfree_skb(skb); - sp->tx_skb[j] = NULL; - } - } -} - -/* - * close should do nothing. Here's why. It's called when - * 'ifconfig bond0 down' is run. If it calls free_irq then - * the irq is gone forever ! When bond0 is made 'up' again, - * the ar2313_open () does not call request_irq (). Worse, - * the call to ar2313_halt() generates a WDOG reset due to - * the write to 'sp->int_regs' and the box reboots. - * Commenting this out is good since it allows the - * system to resume when bond0 is made up again. - */ -static int ar2313_close(struct net_device *dev) -{ -#if 0 - /* - * Disable interrupts - */ - disable_irq(dev->irq); - - /* - * Without (or before) releasing irq and stopping hardware, this - * is an absolute non-sense, by the way. It will be reset instantly - * by the first irq. - */ - netif_stop_queue(dev); - - /* stop the MAC and DMA engines */ - ar2313_halt(dev); - - /* release the interrupt */ - free_irq(dev->irq, dev); - -#endif - return 0; -} - -static int ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - ar2313_descr_t *td; - u32 idx; - - idx = sp->tx_prd; - td = &sp->tx_ring[idx]; - - if (td->status & DMA_TX_OWN) { -#if DEBUG_TX - printk("%s: No space left to Tx\n", __FUNCTION__); -#endif - /* free skbuf and lie to the caller that we sent it out */ - dev->stats.tx_dropped++; - dev_kfree_skb(skb); - - /* restart transmitter in case locked */ - sp->dma_regs->xmt_poll = 0; - return 0; - } - - /* Setup the transmit descriptor. */ - td->devcs = ((skb->len << DMA_TX1_BSIZE_SHIFT) | - (DMA_TX1_LS | DMA_TX1_IC | DMA_TX1_CHAINED)); - td->addr = dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE); - td->status = DMA_TX_OWN; - - /* kick transmitter last */ - sp->dma_regs->xmt_poll = 0; - -#if DEBUG_TX - printk("index %d\n", idx); - printk("TX status %08x\n", td->status); - printk("TX devcs %08x\n", td->devcs); - printk("TX addr %08x\n", td->addr); - printk("TX descr %08x\n", td->descr); -#endif - - sp->tx_skb[idx] = skb; - idx = DSC_NEXT(idx); - sp->tx_prd = idx; - - return 0; -} - -static int ar2313_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - struct mii_ioctl_data *data = (struct mii_ioctl_data *) &ifr->ifr_data; - struct ar2313_private *sp = netdev_priv(dev); - int ret; - - switch (cmd) { - - case SIOCETHTOOL: - spin_lock_irq(&sp->lock); - ret = phy_ethtool_ioctl(sp->phy_dev, (void *) ifr->ifr_data); - spin_unlock_irq(&sp->lock); - return ret; - - case SIOCSIFHWADDR: - if (copy_from_user - (dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr))) - return -EFAULT; - return 0; - - case SIOCGIFHWADDR: - if (copy_to_user - (ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr))) - return -EFAULT; - return 0; - - case SIOCGMIIPHY: - case SIOCGMIIREG: - case SIOCSMIIREG: - return phy_mii_ioctl(sp->phy_dev, data, cmd); - - default: - break; - } - - return -EOPNOTSUPP; -} - -static void ar2313_adjust_link(struct net_device *dev) -{ - struct ar2313_private *sp = netdev_priv(dev); - unsigned int mc; - - if (!sp->phy_dev->link) - return; - - if (sp->phy_dev->duplex != sp->oldduplex) { - mc = readl(&sp->eth_regs->mac_control); - mc &= ~(MAC_CONTROL_F | MAC_CONTROL_DRO); - if (sp->phy_dev->duplex) - mc |= MAC_CONTROL_F; - else - mc |= MAC_CONTROL_DRO; - writel(mc, &sp->eth_regs->mac_control); - sp->oldduplex = sp->phy_dev->duplex; - } -} - -#define MII_ADDR(phy, reg) \ - ((reg << MII_ADDR_REG_SHIFT) | (phy << MII_ADDR_PHY_SHIFT)) - -static int -mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum) -{ - struct net_device *const dev = bus->priv; - struct ar2313_private *sp = netdev_priv(dev); - volatile ETHERNET_STRUCT *ethernet = sp->phy_regs; - - ethernet->mii_addr = MII_ADDR(phy_addr, regnum); - while (ethernet->mii_addr & MII_ADDR_BUSY); - return (ethernet->mii_data >> MII_DATA_SHIFT); -} - -static int -mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum, - u16 value) -{ - struct net_device *const dev = bus->priv; - struct ar2313_private *sp = netdev_priv(dev); - volatile ETHERNET_STRUCT *ethernet = sp->phy_regs; - - while (ethernet->mii_addr & MII_ADDR_BUSY); - ethernet->mii_data = value << MII_DATA_SHIFT; - ethernet->mii_addr = MII_ADDR(phy_addr, regnum) | MII_ADDR_WRITE; - - return 0; -} - -static int mdiobus_reset(struct mii_bus *bus) -{ - struct net_device *const dev = bus->priv; - - ar2313_reset_reg(dev); - - return 0; -} - -static int mdiobus_probe (struct net_device *dev) -{ - struct ar2313_private *const sp = netdev_priv(dev); - struct phy_device *phydev = NULL; - int phy_addr; - - /* find the first (lowest address) PHY on the current MAC's MII bus */ - for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) - if (sp->mii_bus.phy_map[phy_addr]) { - phydev = sp->mii_bus.phy_map[phy_addr]; - break; /* break out with first one found */ - } - - if (!phydev) { - printk (KERN_ERR "ar2313:%s: no PHY found\n", dev->name); - return -1; - } - - /* now we are supposed to have a proper phydev, to attach to... */ - BUG_ON(!phydev); - BUG_ON(phydev->attached_dev); - - phydev = phy_connect(dev, phydev->dev.bus_id, &ar2313_adjust_link, 0, - PHY_INTERFACE_MODE_MII); - - if (IS_ERR(phydev)) { - printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); - return PTR_ERR(phydev); - } - - /* mask with MAC supported features */ - phydev->supported &= (SUPPORTED_10baseT_Half - | SUPPORTED_10baseT_Full - | SUPPORTED_100baseT_Half - | SUPPORTED_100baseT_Full - | SUPPORTED_Autoneg - /* | SUPPORTED_Pause | SUPPORTED_Asym_Pause */ - | SUPPORTED_MII - | SUPPORTED_TP); - - phydev->advertising = phydev->supported; - - sp->oldduplex = -1; - sp->phy_dev = phydev; - - printk(KERN_INFO "%s: attached PHY driver [%s] " - "(mii_bus:phy_addr=%s)\n", - dev->name, phydev->drv->name, phydev->dev.bus_id); - - return 0; -} - diff --git a/target/linux/atheros/files-2.6.26/drivers/net/ar2313/ar2313.h b/target/linux/atheros/files-2.6.26/drivers/net/ar2313/ar2313.h deleted file mode 100644 index 9fa49caa79..0000000000 --- a/target/linux/atheros/files-2.6.26/drivers/net/ar2313/ar2313.h +++ /dev/null @@ -1,195 +0,0 @@ -#ifndef _AR2313_H_ -#define _AR2313_H_ - -#include <linux/autoconf.h> -#include <asm/bootinfo.h> -#include <ar531x_platform.h> - -/* - * probe link timer - 5 secs - */ -#define LINK_TIMER (5*HZ) - -#define IS_DMA_TX_INT(X) (((X) & (DMA_STATUS_TI)) != 0) -#define IS_DMA_RX_INT(X) (((X) & (DMA_STATUS_RI)) != 0) -#define IS_DRIVER_OWNED(X) (((X) & (DMA_TX_OWN)) == 0) - -#define AR2313_TX_TIMEOUT (HZ/4) - -/* - * Rings - */ -#define DSC_RING_ENTRIES_SIZE (AR2313_DESCR_ENTRIES * sizeof(struct desc)) -#define DSC_NEXT(idx) ((idx + 1) & (AR2313_DESCR_ENTRIES - 1)) - -static inline int tx_space(u32 csm, u32 prd) -{ - return (csm - prd - 1) & (AR2313_DESCR_ENTRIES - 1); -} - -#if MAX_SKB_FRAGS -#define TX_RESERVED (MAX_SKB_FRAGS+1) /* +1 for message header */ -#define tx_ring_full(csm, prd) (tx_space(csm, prd) <= TX_RESERVED) -#else -#define tx_ring_full 0 -#endif - -#define AR2313_MBGET 2 -#define AR2313_MBSET 3 -#define AR2313_PCI_RECONFIG 4 -#define AR2313_PCI_DUMP 5 -#define AR2313_TEST_PANIC 6 -#define AR2313_TEST_NULLPTR 7 -#define AR2313_READ_DATA 8 -#define AR2313_WRITE_DATA 9 -#define AR2313_GET_VERSION 10 -#define AR2313_TEST_HANG 11 -#define AR2313_SYNC 12 - - -// -// New Combo structure for Both Eth0 AND eth1 -// -typedef struct { - volatile unsigned int mac_control; /* 0x00 */ - volatile unsigned int mac_addr[2]; /* 0x04 - 0x08 */ - volatile unsigned int mcast_table[2]; /* 0x0c - 0x10 */ - volatile unsigned int mii_addr; /* 0x14 */ - volatile unsigned int mii_data; /* 0x18 */ - volatile unsigned int flow_control; /* 0x1c */ - volatile unsigned int vlan_tag; /* 0x20 */ - volatile unsigned int pad[7]; /* 0x24 - 0x3c */ - volatile unsigned int ucast_table[8]; /* 0x40-0x5c */ - -} ETHERNET_STRUCT; - -/******************************************************************** - * Interrupt controller - ********************************************************************/ - -typedef struct { - volatile unsigned int wdog_control; /* 0x08 */ - volatile unsigned int wdog_timer; /* 0x0c */ - volatile unsigned int misc_status; /* 0x10 */ - volatile unsigned int misc_mask; /* 0x14 */ - volatile unsigned int global_status; /* 0x18 */ - volatile unsigned int reserved; /* 0x1c */ - volatile unsigned int reset_control; /* 0x20 */ -} INTERRUPT; - -/******************************************************************** - * DMA controller - ********************************************************************/ -typedef struct { - volatile unsigned int bus_mode; /* 0x00 (CSR0) */ - volatile unsigned int xmt_poll; /* 0x04 (CSR1) */ - volatile unsigned int rcv_poll; /* 0x08 (CSR2) */ - volatile unsigned int rcv_base; /* 0x0c (CSR3) */ - volatile unsigned int xmt_base; /* 0x10 (CSR4) */ - volatile unsigned int status; /* 0x14 (CSR5) */ - volatile unsigned int control; /* 0x18 (CSR6) */ - volatile unsigned int intr_ena; /* 0x1c (CSR7) */ - volatile unsigned int rcv_missed; /* 0x20 (CSR8) */ - volatile unsigned int reserved[11]; /* 0x24-0x4c (CSR9-19) */ - volatile unsigned int cur_tx_buf_addr; /* 0x50 (CSR20) */ - volatile unsigned int cur_rx_buf_addr; /* 0x50 (CSR21) */ -} DMA; - -/* - * Struct private for the Sibyte. - * - * Elements are grouped so variables used by the tx handling goes - * together, and will go into the same cache lines etc. in order to - * avoid cache line contention between the rx and tx handling on SMP. - * - * Frequently accessed variables are put at the beginning of the - * struct to help the compiler generate better/shorter code. - */ -struct ar2313_private { - struct net_device *dev; - int version; - u32 mb[2]; - - volatile ETHERNET_STRUCT *phy_regs; - volatile ETHERNET_STRUCT *eth_regs; - volatile DMA *dma_regs; - volatile u32 *int_regs; - struct ar531x_eth *cfg; - - spinlock_t lock; /* Serialise access to device */ - - /* - * RX and TX descriptors, must be adjacent - */ - ar2313_descr_t *rx_ring; - ar2313_descr_t *tx_ring; - - - struct sk_buff **rx_skb; - struct sk_buff **tx_skb; - - /* - * RX elements - */ - u32 rx_skbprd; - u32 cur_rx; - - /* - * TX elements - */ - u32 tx_prd; - u32 tx_csm; - - /* - * Misc elements - */ - int board_idx; - char name[48]; - struct { - u32 address; - u32 length; - char *mapping; - } desc; - - - struct timer_list link_timer; - unsigned short phy; /* merlot phy = 1, samsung phy = 0x1f */ - unsigned short mac; - unsigned short link; /* 0 - link down, 1 - link up */ - u16 phyData; - - struct tasklet_struct rx_tasklet; - int unloading; - - struct phy_device *phy_dev; - struct mii_bus mii_bus; - int oldduplex; -}; - - -/* - * Prototypes - */ -static int ar2313_init(struct net_device *dev); -#ifdef TX_TIMEOUT -static void ar2313_tx_timeout(struct net_device *dev); -#endif -#if 0 -static void ar2313_multicast_list(struct net_device *dev); -#endif -static int ar2313_restart(struct net_device *dev); -#if DEBUG -static void ar2313_dump_regs(struct net_device *dev); -#endif -static void ar2313_load_rx_ring(struct net_device *dev, int bufs); -static irqreturn_t ar2313_interrupt(int irq, void *dev_id); -static int ar2313_open(struct net_device *dev); -static int ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev); -static int ar2313_close(struct net_device *dev); -static int ar2313_ioctl(struct net_device *dev, struct ifreq *ifr, - int cmd); -static void ar2313_init_cleanup(struct net_device *dev); -static int ar2313_setup_timer(struct net_device *dev); -static void ar2313_link_timer_fn(unsigned long data); -static void ar2313_check_link(struct net_device *dev); -#endif /* _AR2313_H_ */ diff --git a/target/linux/atheros/files-2.6.26/drivers/net/ar2313/dma.h b/target/linux/atheros/files-2.6.26/drivers/net/ar2313/dma.h deleted file mode 100644 index 691bdabafd..0000000000 --- a/target/linux/atheros/files-2.6.26/drivers/net/ar2313/dma.h +++ /dev/null @@ -1,141 +0,0 @@ -#ifndef __ARUBA_DMA_H__ -#define __ARUBA_DMA_H__ - -/******************************************************************************* - * - * Copyright 2002 Integrated Device Technology, Inc. - * All rights reserved. - * - * DMA register definition. - * - * - * Author : ryan.holmQVist@idt.com - * Date : 20011005 - * Update : - * $Log: dma.h,v $ - * Revision 1.3 2002/06/06 18:34:03 astichte - * Added XXX_PhysicalAddress and XXX_VirtualAddress - * - * Revision 1.2 2002/06/05 18:30:46 astichte - * Removed IDTField - * - * Revision 1.1 2002/05/29 17:33:21 sysarch - * jba File moved from vcode/include/idt/acacia - * - * - ******************************************************************************/ - -#define AR_BIT(x) (1 << (x)) -#define DMA_RX_ERR_CRC AR_BIT(1) -#define DMA_RX_ERR_DRIB AR_BIT(2) -#define DMA_RX_ERR_MII AR_BIT(3) -#define DMA_RX_EV2 AR_BIT(5) -#define DMA_RX_ERR_COL AR_BIT(6) -#define DMA_RX_LONG AR_BIT(7) -#define DMA_RX_LS AR_BIT(8) /* last descriptor */ -#define DMA_RX_FS AR_BIT(9) /* first descriptor */ -#define DMA_RX_MF AR_BIT(10) /* multicast frame */ -#define DMA_RX_ERR_RUNT AR_BIT(11) /* runt frame */ -#define DMA_RX_ERR_LENGTH AR_BIT(12) /* length error */ -#define DMA_RX_ERR_DESC AR_BIT(14) /* descriptor error */ -#define DMA_RX_ERROR AR_BIT(15) /* error summary */ -#define DMA_RX_LEN_MASK 0x3fff0000 -#define DMA_RX_LEN_SHIFT 16 -#define DMA_RX_FILT AR_BIT(30) -#define DMA_RX_OWN AR_BIT(31) /* desc owned by DMA controller */ - -#define DMA_RX1_BSIZE_MASK 0x000007ff -#define DMA_RX1_BSIZE_SHIFT 0 -#define DMA_RX1_CHAINED AR_BIT(24) -#define DMA_RX1_RER AR_BIT(25) - -#define DMA_TX_ERR_UNDER AR_BIT(1) /* underflow error */ -#define DMA_TX_ERR_DEFER AR_BIT(2) /* excessive deferral */ -#define DMA_TX_COL_MASK 0x78 -#define DMA_TX_COL_SHIFT 3 -#define DMA_TX_ERR_HB AR_BIT(7) /* hearbeat failure */ -#define DMA_TX_ERR_COL AR_BIT(8) /* excessive collisions */ -#define DMA_TX_ERR_LATE AR_BIT(9) /* late collision */ -#define DMA_TX_ERR_LINK AR_BIT(10) /* no carrier */ -#define DMA_TX_ERR_LOSS AR_BIT(11) /* loss of carrier */ -#define DMA_TX_ERR_JABBER AR_BIT(14) /* transmit jabber timeout */ -#define DMA_TX_ERROR AR_BIT(15) /* frame aborted */ -#define DMA_TX_OWN AR_BIT(31) /* descr owned by DMA controller */ - -#define DMA_TX1_BSIZE_MASK 0x000007ff -#define DMA_TX1_BSIZE_SHIFT 0 -#define DMA_TX1_CHAINED AR_BIT(24) /* chained descriptors */ -#define DMA_TX1_TER AR_BIT(25) /* transmit end of ring */ -#define DMA_TX1_FS AR_BIT(29) /* first segment */ -#define DMA_TX1_LS AR_BIT(30) /* last segment */ -#define DMA_TX1_IC AR_BIT(31) /* interrupt on completion */ - -#define RCVPKT_LENGTH(X) (X >> 16) /* Received pkt Length */ - -#define MAC_CONTROL_RE AR_BIT(2) /* receive enable */ -#define MAC_CONTROL_TE AR_BIT(3) /* transmit enable */ -#define MAC_CONTROL_DC AR_BIT(5) /* Deferral check */ -#define MAC_CONTROL_ASTP AR_BIT(8) /* Auto pad strip */ -#define MAC_CONTROL_DRTY AR_BIT(10) /* Disable retry */ -#define MAC_CONTROL_DBF AR_BIT(11) /* Disable bcast frames */ -#define MAC_CONTROL_LCC AR_BIT(12) /* late collision ctrl */ -#define MAC_CONTROL_HP AR_BIT(13) /* Hash Perfect filtering */ -#define MAC_CONTROL_HASH AR_BIT(14) /* Unicast hash filtering */ -#define MAC_CONTROL_HO AR_BIT(15) /* Hash only filtering */ -#define MAC_CONTROL_PB AR_BIT(16) /* Pass Bad frames */ -#define MAC_CONTROL_IF AR_BIT(17) /* Inverse filtering */ -#define MAC_CONTROL_PR AR_BIT(18) /* promiscuous mode (valid frames - only) */ -#define MAC_CONTROL_PM AR_BIT(19) /* pass multicast */ -#define MAC_CONTROL_F AR_BIT(20) /* full-duplex */ -#define MAC_CONTROL_DRO AR_BIT(23) /* Disable Receive Own */ -#define MAC_CONTROL_HBD AR_BIT(28) /* heart-beat disabled (MUST BE - SET) */ -#define MAC_CONTROL_BLE AR_BIT(30) /* big endian mode */ -#define MAC_CONTROL_RA AR_BIT(31) /* receive all (valid and invalid - frames) */ - -#define MII_ADDR_BUSY AR_BIT(0) -#define MII_ADDR_WRITE AR_BIT(1) -#define MII_ADDR_REG_SHIFT 6 -#define MII_ADDR_PHY_SHIFT 11 -#define MII_DATA_SHIFT 0 - -#define FLOW_CONTROL_FCE AR_BIT(1) - -#define DMA_BUS_MODE_SWR AR_BIT(0) /* software reset */ -#define DMA_BUS_MODE_BLE AR_BIT(7) /* big endian mode */ -#define DMA_BUS_MODE_PBL_SHIFT 8 /* programmable burst length 32 */ -#define DMA_BUS_MODE_DBO AR_BIT(20) /* big-endian descriptors */ - -#define DMA_STATUS_TI AR_BIT(0) /* transmit interrupt */ -#define DMA_STATUS_TPS AR_BIT(1) /* transmit process stopped */ -#define DMA_STATUS_TU AR_BIT(2) /* transmit buffer unavailable */ -#define DMA_STATUS_TJT AR_BIT(3) /* transmit buffer timeout */ -#define DMA_STATUS_UNF AR_BIT(5) /* transmit underflow */ -#define DMA_STATUS_RI AR_BIT(6) /* receive interrupt */ -#define DMA_STATUS_RU AR_BIT(7) /* receive buffer unavailable */ -#define DMA_STATUS_RPS AR_BIT(8) /* receive process stopped */ -#define DMA_STATUS_ETI AR_BIT(10) /* early transmit interrupt */ -#define DMA_STATUS_FBE AR_BIT(13) /* fatal bus interrupt */ -#define DMA_STATUS_ERI AR_BIT(14) /* early receive interrupt */ -#define DMA_STATUS_AIS AR_BIT(15) /* abnormal interrupt summary */ -#define DMA_STATUS_NIS AR_BIT(16) /* normal interrupt summary */ -#define DMA_STATUS_RS_SHIFT 17 /* receive process state */ -#define DMA_STATUS_TS_SHIFT 20 /* transmit process state */ -#define DMA_STATUS_EB_SHIFT 23 /* error bits */ - -#define DMA_CONTROL_SR AR_BIT(1) /* start receive */ -#define DMA_CONTROL_ST AR_BIT(13) /* start transmit */ -#define DMA_CONTROL_SF AR_BIT(21) /* store and forward */ - - -typedef struct { - volatile unsigned int status; // OWN, Device control and status. - volatile unsigned int devcs; // pkt Control bits + Length - volatile unsigned int addr; // Current Address. - volatile unsigned int descr; // Next descriptor in chain. -} ar2313_descr_t; - - -#endif // __ARUBA_DMA_H__ diff --git a/target/linux/atheros/files-2.6.26/drivers/watchdog/ar2315-wtd.c b/target/linux/atheros/files-2.6.26/drivers/watchdog/ar2315-wtd.c deleted file mode 100644 index d71b6f6848..0000000000 --- a/target/linux/atheros/files-2.6.26/drivers/watchdog/ar2315-wtd.c +++ /dev/null @@ -1,198 +0,0 @@ -/* - * 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 - * - * Copyright (C) 2008 John Crispin <blogic@openwrt.org> - * Based on EP93xx and ifxmips wdt driver - */ - -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/types.h> -#include <linux/miscdevice.h> -#include <linux/watchdog.h> -#include <linux/fs.h> -#include <linux/ioport.h> -#include <linux/notifier.h> -#include <linux/reboot.h> -#include <linux/init.h> -#include <linux/platform_device.h> - -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/system.h> -#include <asm/addrspace.h> -#include <ar531x.h> - -#define CLOCK_RATE 40000000 -#define HEARTBEAT(x) (x < 1 || x > 90)?(20):(x) - -static int wdt_timeout = 20; -static int started = 0; -static int in_use = 0; - -static void -ar2315_wdt_enable(void) -{ - sysRegWrite(AR5315_WD, wdt_timeout * CLOCK_RATE); - sysRegWrite(AR5315_ISR, 0x80); -} - -static ssize_t -ar2315_wdt_write(struct file *file, const char __user *data, size_t len, loff_t *ppos) -{ - if(len) - ar2315_wdt_enable(); - return len; -} - -static int -ar2315_wdt_open(struct inode *inode, struct file *file) -{ - if(in_use) - return -EBUSY; - ar2315_wdt_enable(); - in_use = started = 1; - return nonseekable_open(inode, file); -} - -static int -ar2315_wdt_release(struct inode *inode, struct file *file) -{ - in_use = 0; - return 0; -} - -static irqreturn_t -ar2315_wdt_interrupt(int irq, void *dev_id) -{ - if(started) - { - printk(KERN_CRIT "watchdog expired, rebooting system\n"); - emergency_restart(); - } else { - sysRegWrite(AR5315_WDC, 0); - sysRegWrite(AR5315_WD, 0); - sysRegWrite(AR5315_ISR, 0x80); - } - return IRQ_HANDLED; -} - -static struct watchdog_info ident = { - .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, - .identity = "ar2315 Watchdog", -}; - -static int -ar2315_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) -{ - int new_wdt_timeout; - int ret = -ENOIOCTLCMD; - - switch(cmd) - { - case WDIOC_GETSUPPORT: - ret = copy_to_user((struct watchdog_info __user *)arg, &ident, sizeof(ident)) ? -EFAULT : 0; - break; - - case WDIOC_KEEPALIVE: - ar2315_wdt_enable(); - ret = 0; - break; - - case WDIOC_SETTIMEOUT: - if((ret = get_user(new_wdt_timeout, (int __user *)arg))) - break; - wdt_timeout = HEARTBEAT(new_wdt_timeout); - ar2315_wdt_enable(); - break; - - case WDIOC_GETTIMEOUT: - ret = put_user(wdt_timeout, (int __user *)arg); - break; - } - return ret; -} - -static struct file_operations ar2315_wdt_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .write = ar2315_wdt_write, - .ioctl = ar2315_wdt_ioctl, - .open = ar2315_wdt_open, - .release = ar2315_wdt_release, -}; - -static struct miscdevice ar2315_wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &ar2315_wdt_fops, -}; - -static int -ar2315_wdt_probe(struct platform_device *dev) -{ - int ret = 0; - - ar2315_wdt_enable(); - ret = request_irq(AR531X_MISC_IRQ_WATCHDOG, ar2315_wdt_interrupt, IRQF_DISABLED, "ar2315_wdt", NULL); - if(ret) - { - printk(KERN_ERR "ar2315wdt: failed to register inetrrupt\n"); - goto out; - } - - ret = misc_register(&ar2315_wdt_miscdev); - if(ret) - printk(KERN_ERR "ar2315wdt: failed to register miscdev\n"); - -out: - return ret; -} - -static int -ar2315_wdt_remove(struct platform_device *dev) -{ - misc_deregister(&ar2315_wdt_miscdev); - free_irq(AR531X_MISC_IRQ_WATCHDOG, NULL); - return 0; -} - -static struct platform_driver ar2315_wdt_driver = { - .probe = ar2315_wdt_probe, - .remove = ar2315_wdt_remove, - .driver = { - .name = "ar2315_wdt", - .owner = THIS_MODULE, - }, -}; - -static int __init -init_ar2315_wdt(void) -{ - int ret = platform_driver_register(&ar2315_wdt_driver); - if(ret) - printk(KERN_INFO "ar2315_wdt: error registering platfom driver!"); - return ret; -} - -static void __exit -exit_ar2315_wdt(void) -{ - platform_driver_unregister(&ar2315_wdt_driver); -} - -module_init(init_ar2315_wdt); -module_exit(exit_ar2315_wdt); |