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finally move buildroot-ng to trunk

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This commit is contained in:
Felix Fietkau
2006-10-13 22:51:49 +02:00
parent d58a09110c b3ce218b51
commit 60c1f0f64d
907 changed files with 495477 additions and 0 deletions
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5606
target/linux/rb532-2.6/patches/100-rb5xx_support.patch Normal file
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target/linux/rb532-2.6/patches/110-korina_ethernet.patch Normal file
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target/linux/rb532-2.6/patches/120-cf.patch Normal file
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@@ -0,0 +1,990 @@
diff -urN linux.old/drivers/block/Kconfig linux.dev/drivers/block/Kconfig
--- linux.old/drivers/block/Kconfig 2006-06-08 20:20:52.000000000 +0200
+++ linux.dev/drivers/block/Kconfig 2006-06-08 22:14:58.000000000 +0200
@@ -453,4 +453,12 @@
This driver provides Support for ATA over Ethernet block
devices like the Coraid EtherDrive (R) Storage Blade.
+config BLK_DEV_CF_MIPS
+ bool "CF slot of RB532 board"
+ depends on MIKROTIK_RB500
+ default y
+ help
+ The Routerboard 532 has a CF slot on it. Enable the special block
+ device driver for it.
+
endmenu
diff -urN linux.old/drivers/block/rb500/ata.c linux.dev/drivers/block/rb500/ata.c
--- linux.old/drivers/block/rb500/ata.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/block/rb500/ata.c 2006-06-09 01:58:40.000000000 +0200
@@ -0,0 +1,474 @@
+#include <linux/kernel.h> /* printk() */
+#include <linux/module.h> /* module to be loadable */
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/ioport.h> /* request_mem_region() */
+#include <asm/unaligned.h> /* ioremap() */
+#include <asm/io.h> /* ioremap() */
+#include <asm/rc32434/rb.h>
+
+#include "ata.h"
+
+#define REQUEST_MEM_REGION 0
+#define DEBUG 1
+
+#if DEBUG
+#define DEBUGP printk
+#else
+#define DEBUGP(format, args...)
+#endif
+
+#define SECS 1000000 /* unit for wait_not_busy() is 1us */
+
+unsigned cf_head = 0;
+unsigned cf_cyl = 0;
+unsigned cf_spt = 0;
+unsigned cf_sectors = 0;
+static unsigned cf_block_size = 1;
+static void *baddr = 0;
+
+#define DBUF32 ((volatile u32 *)((unsigned long)dev->baddr | ATA_DBUF_OFFSET))
+
+
+static void cf_do_tasklet(unsigned long dev_l);
+
+
+static inline void wareg(u8 val, unsigned reg, struct cf_mips_dev* dev)
+{
+ writeb(val, dev->baddr + ATA_REG_OFFSET + reg);
+}
+
+static inline u8 rareg(unsigned reg, struct cf_mips_dev* dev)
+{
+ return readb(dev->baddr + ATA_REG_OFFSET + reg);
+}
+
+static inline int get_gpio_bit(gpio_func ofs, struct cf_mips_dev *dev)
+{
+ return (gpio_get(ofs) >> dev->pin) & 1;
+}
+
+static inline void set_gpio_bit(int bit, gpio_func ofs, struct cf_mips_dev *dev)
+{
+ gpio_set(ofs, (1 << dev->pin), ((bit & 1) << dev->pin));
+}
+
+static inline int cfrdy(struct cf_mips_dev *dev)
+{
+ return get_gpio_bit(DATA, dev);
+}
+
+static inline void prepare_cf_irq(struct cf_mips_dev *dev)
+{
+ set_gpio_bit(1, ILEVEL, dev); /* interrupt on cf ready (not busy) */
+ set_gpio_bit(0, ISTAT, dev); /* clear interrupt status */
+}
+
+static inline int cf_present(struct cf_mips_dev* dev)
+{
+ /* TODO: read and configure CIS into memory mapped mode
+ * TODO: parse CISTPL_CONFIG on CF+ cards to get base address (0x200)
+ * TODO: maybe adjust power saving setting for Hitachi Microdrive
+ */
+ int i;
+
+ /* setup CFRDY GPIO as input */
+ set_gpio_bit(0, FUNC, dev);
+ set_gpio_bit(0, CFG, dev);
+
+ for (i = 0; i < 0x10; ++i) {
+ if (rareg(i,dev) != 0xff)
+ return 1;
+ }
+ return 0;
+}
+
+static inline int is_busy(struct cf_mips_dev *dev)
+{
+ return !cfrdy(dev);
+}
+
+static int wait_not_busy(int to_us, int wait_for_busy,struct cf_mips_dev *dev)
+{
+ int us_passed = 0;
+ if (wait_for_busy && !is_busy(dev)) {
+ /* busy must appear within 400ns,
+ * but it may dissapear before we see it
+ * => must not wait for busy in a loop
+ */
+ ndelay(400);
+ }
+
+ do {
+ if (us_passed)
+ udelay(1); /* never reached in async mode */
+ if (!is_busy(dev)) {
+ if (us_passed > 1 * SECS) {
+ printk(KERN_WARNING "cf-mips: not busy ok (after %dus)"
+ ", status 0x%02x\n", us_passed, (unsigned) rareg(ATA_REG_ST,dev));
+ }
+ return CF_TRANS_OK;
+ }
+ if (us_passed == 1 * SECS) {
+ printk(KERN_WARNING "cf-mips: wait not busy %dus..\n", to_us);
+ }
+ if (dev->async_mode) {
+ dev->to_timer.expires = jiffies + (to_us * HZ / SECS);
+ dev->irq_enable_time = jiffies;
+ prepare_cf_irq(dev);
+ if (is_busy(dev)) {
+ add_timer(&dev->to_timer);
+ enable_irq(dev->irq);
+ return CF_TRANS_IN_PROGRESS;
+ }
+ continue;
+ }
+ ++us_passed;
+ } while (us_passed < to_us);
+
+ printk(KERN_ERR "cf-mips: wait not busy timeout (%dus)"
+ ", status 0x%02x, state %d\n",
+ to_us, (unsigned) rareg(ATA_REG_ST,dev), dev->tstate);
+ return CF_TRANS_FAILED;
+}
+
+static irqreturn_t cf_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+ /* While tasklet has not disabled irq, irq will be retried all the time
+ * because of ILEVEL matching GPIO pin status => deadlock.
+ * To avoid this, we change ILEVEL to 0.
+ */
+ struct cf_mips_dev *dev=dev_id;
+
+ set_gpio_bit(0, ILEVEL, dev);
+ set_gpio_bit(0, ISTAT, dev);
+
+ del_timer(&dev->to_timer);
+ tasklet_schedule(&dev->tasklet);
+ return IRQ_HANDLED;
+}
+
+static int do_reset(struct cf_mips_dev *dev)
+{
+ printk(KERN_INFO "cf-mips: resetting..\n");
+
+ wareg(ATA_REG_DC_SRST, ATA_REG_DC,dev);
+ udelay(1); /* FIXME: how long should we wait here? */
+ wareg(0, ATA_REG_DC,dev);
+
+ return wait_not_busy(30 * SECS, 1,dev);
+}
+
+static int set_multiple(struct cf_mips_dev *dev)
+{
+ if (dev->block_size <= 1)
+ return CF_TRANS_OK;
+
+ wareg(dev->block_size, ATA_REG_SC,dev);
+ wareg(ATA_REG_DH_BASE | ATA_REG_DH_LBA, ATA_REG_DH,dev);
+ wareg(ATA_CMD_SET_MULTIPLE, ATA_REG_CMD,dev);
+
+ return wait_not_busy(10 * SECS, 1,dev);
+}
+
+static int set_cmd(struct cf_mips_dev *dev)
+{
+ //DEBUGP(KERN_INFO "cf-mips: ata cmd 0x%02x\n", dev->tcmd);
+ // sector_count should be <=24 bits..
+ BUG_ON(dev->tsect_start>=0x10000000);
+ // This way, it addresses 2^24 * 512 = 128G
+
+ if (dev->tsector_count) {
+ wareg(dev->tsector_count & 0xff, ATA_REG_SC,dev);
+ wareg(dev->tsect_start & 0xff, ATA_REG_SN,dev);
+ wareg((dev->tsect_start >> 8) & 0xff, ATA_REG_CL,dev);
+ wareg((dev->tsect_start >> 16) & 0xff, ATA_REG_CH,dev);
+ }
+ wareg(((dev->tsect_start >> 24) & 0x0f) | ATA_REG_DH_BASE | ATA_REG_DH_LBA,
+ ATA_REG_DH,dev); /* select drive on all commands */
+ wareg(dev->tcmd, ATA_REG_CMD,dev);
+ return wait_not_busy(10 * SECS, 1,dev);
+}
+
+static int do_trans(struct cf_mips_dev *dev)
+{
+ int res;
+ unsigned st;
+ int transfered;
+
+ //printk("do_trans: %d sectors left\n",dev->tsectors_left);
+ while (dev->tsectors_left) {
+ transfered = 0;
+
+ st = rareg(ATA_REG_ST,dev);
+ if (!(st & ATA_REG_ST_DRQ)) {
+ printk(KERN_ERR "cf-mips: do_trans without DRQ (status 0x%x)!\n", st);
+ if (st & ATA_REG_ST_ERR) {
+ int errId = rareg(ATA_REG_ERR,dev);
+ printk(KERN_ERR "cf-mips: %s error, status 0x%x, errid 0x%x\n",
+ (dev->tread ? "read" : "write"), st, errId);
+ }
+ return CF_TRANS_FAILED;
+ }
+ do { /* Fill/read the buffer one block */
+ u32 *qbuf, *qend;
+ qbuf = (u32 *)dev->tbuf;
+ qend = qbuf + CF_SECT_SIZE / sizeof(u32);
+ if (dev->tread) {
+ while (qbuf!=qend)
+ put_unaligned(*DBUF32,qbuf++);
+ //*(qbuf++) = *DBUF32;
+ }
+ else {
+ while(qbuf!=qend)
+ *DBUF32 = get_unaligned(qbuf++);
+ }
+
+ dev->tsectors_left--;
+ dev->tbuf += CF_SECT_SIZE;
+ dev->tbuf_size -= CF_SECT_SIZE;
+ transfered++;
+ } while (transfered != dev->block_size && dev->tsectors_left > 0);
+
+ res = wait_not_busy(10 * SECS, 1,dev);
+ if (res != CF_TRANS_OK)
+ return res;
+ };
+
+ st = rareg(ATA_REG_ST,dev);
+ if (st & (ATA_REG_ST_DRQ | ATA_REG_ST_DWF | ATA_REG_ST_ERR)) {
+ if (st & ATA_REG_ST_DRQ) {
+ printk(KERN_ERR "cf-mips: DRQ after all %d sectors are %s"
+ ", status 0x%x\n", dev->tsector_count, (dev->tread ? "read" : "written"), st);
+ } else if (st & ATA_REG_ST_DWF) {
+ printk(KERN_ERR "cf-mips: write fault, status 0x%x\n", st);
+ } else {
+ int errId = rareg(ATA_REG_ERR,dev);
+ printk(KERN_ERR "cf-mips: %s error, status 0x%x, errid 0x%x\n",
+ (dev->tread ? "read" : "write"), st, errId);
+ }
+ return CF_TRANS_FAILED;
+ }
+ return CF_TRANS_OK;
+}
+
+static int cf_do_state(struct cf_mips_dev *dev)
+{
+ int res;
+ switch (dev->tstate) { /* fall through everywhere */
+ case TS_IDLE:
+ dev->tstate = TS_READY;
+ if (is_busy(dev)) {
+ dev->tstate = TS_AFTER_RESET;
+ res = do_reset(dev);
+ if (res != CF_TRANS_OK)
+ break;
+ }
+ case TS_AFTER_RESET:
+ if (dev->tstate == TS_AFTER_RESET) {
+ dev->tstate = TS_READY;
+ res = set_multiple(dev);
+ if (res != CF_TRANS_OK)
+ break;
+ }
+ case TS_READY:
+ dev->tstate = TS_CMD;
+ res = set_cmd(dev);
+ if (res != CF_TRANS_OK)
+ break;;
+ case TS_CMD:
+ dev->tstate = TS_TRANS;
+ case TS_TRANS:
+ res = do_trans(dev);
+ break;
+ default:
+ printk(KERN_ERR "cf-mips: BUG: unknown tstate %d\n", dev->tstate);
+ return CF_TRANS_FAILED;
+ }
+ if (res != CF_TRANS_IN_PROGRESS)
+ dev->tstate = TS_IDLE;
+ return res;
+}
+
+static void cf_do_tasklet(unsigned long dev_l)
+{
+ struct cf_mips_dev* dev=(struct cf_mips_dev*) dev_l;
+ int res;
+
+ disable_irq(dev->irq);
+
+ if (dev->tstate == TS_IDLE)
+ return; /* can happen when irq is first registered */
+
+#if 0
+ DEBUGP(KERN_WARNING "cf-mips: not busy ok (tasklet) status 0x%02x\n",
+ (unsigned) rareg(ATA_REG_ST,dev));
+#endif
+
+ res = cf_do_state(dev);
+ if (res == CF_TRANS_IN_PROGRESS)
+ return;
+ cf_async_trans_done(dev,res);
+}
+
+static void cf_async_timeout(unsigned long dev_l)
+{
+ struct cf_mips_dev* dev=(struct cf_mips_dev*) dev_l;
+ disable_irq(dev->irq);
+ /* Perhaps send abort to the device? */
+ printk(KERN_ERR "cf-mips: wait not busy timeout (%lus)"
+ ", status 0x%02x, state %d\n",
+ jiffies - dev->irq_enable_time, (unsigned) rareg(ATA_REG_ST,dev), dev->tstate);
+ dev->tstate = TS_IDLE;
+ cf_async_trans_done(dev,CF_TRANS_FAILED);
+}
+
+int cf_do_transfer(struct cf_mips_dev* dev,sector_t sector, unsigned long nsect,
+ char* buffer, int is_write)
+{
+ BUG_ON(dev->tstate!=TS_IDLE);
+ if (nsect > ATA_MAX_SECT_PER_CMD) {
+ printk(KERN_WARNING "cf-mips: sector count %lu out of range\n",nsect);
+ return CF_TRANS_FAILED;
+ }
+ if (sector + nsect > dev->sectors) {
+ printk(KERN_WARNING "cf-mips: sector %lu out of range\n",sector);
+ return CF_TRANS_FAILED;
+ }
+ dev->tbuf = buffer;
+ dev->tbuf_size = nsect*512;
+ dev->tsect_start = sector;
+ dev->tsector_count = nsect;
+ dev->tsectors_left = dev->tsector_count;
+ dev->tread = (is_write)?0:1;
+
+ dev->tcmd = (dev->block_size == 1 ?
+ (is_write ? ATA_CMD_WRITE_SECTORS : ATA_CMD_READ_SECTORS) :
+ (is_write ? ATA_CMD_WRITE_MULTIPLE : ATA_CMD_READ_MULTIPLE));
+
+ return cf_do_state(dev);
+}
+
+static int do_identify(struct cf_mips_dev *dev)
+{
+ u16 sbuf[CF_SECT_SIZE >> 1];
+ int res;
+ char tstr[17]; //serial
+ BUG_ON(dev->tstate!=TS_IDLE);
+ dev->tbuf = (char *) sbuf;
+ dev->tbuf_size = CF_SECT_SIZE;
+ dev->tsect_start = 0;
+ dev->tsector_count = 0;
+ dev->tsectors_left = 1;
+ dev->tread = 1;
+ dev->tcmd = ATA_CMD_IDENTIFY_DRIVE;
+
+ DEBUGP(KERN_INFO "cf-mips: identify drive..\n");
+ res = cf_do_state(dev);
+ if (res == CF_TRANS_IN_PROGRESS) {
+ printk(KERN_ERR "cf-mips: BUG: async identify cmd\n");
+ return CF_TRANS_FAILED;
+ }
+ if (res != CF_TRANS_OK)
+ return 0;
+
+ dev->head = sbuf[3];
+ dev->cyl = sbuf[1];
+ dev->spt = sbuf[6];
+ dev->sectors = ((unsigned long) sbuf[7] << 16) | sbuf[8];
+ dev->dtype=sbuf[0];
+ memcpy(tstr,&sbuf[12],16);
+ tstr[16]=0;
+ printk(KERN_INFO "cf-mips: %s detected, C/H/S=%d/%d/%d sectors=%u (%uMB) Serial=%s\n",
+ (sbuf[0] == 0x848A ? "CF card" : "ATA drive"), dev->cyl, dev->head,
+ dev->spt, dev->sectors, dev->sectors >> 11,tstr);
+ return 1;
+}
+
+static void init_multiple(struct cf_mips_dev * dev)
+{
+ int res;
+ DEBUGP(KERN_INFO "cf-mips: detecting block size\n");
+
+ dev->block_size = 128; /* max block size = 128 sectors (64KB) */
+ do {
+ wareg(dev->block_size, ATA_REG_SC,dev);
+ wareg(ATA_REG_DH_BASE | ATA_REG_DH_LBA, ATA_REG_DH,dev);
+ wareg(ATA_CMD_SET_MULTIPLE, ATA_REG_CMD,dev);
+
+ res = wait_not_busy(10 * SECS, 1,dev);
+ if (res != CF_TRANS_OK) {
+ printk(KERN_ERR "cf-mips: failed to detect block size: busy!\n");
+ dev->block_size = 1;
+ return;
+ }
+ if ((rareg(ATA_REG_ST,dev) & ATA_REG_ST_ERR) == 0)
+ break;
+ dev->block_size /= 2;
+ } while (dev->block_size > 1);
+
+ printk(KERN_INFO "cf-mips: multiple sectors = %d\n", dev->block_size);
+}
+
+int cf_init(struct cf_mips_dev *dev)
+{
+ tasklet_init(&dev->tasklet,cf_do_tasklet,(unsigned long)dev);
+ dev->baddr = ioremap_nocache((unsigned long)dev->base, CFDEV_BUF_SIZE);
+ if (!dev->baddr) {
+ printk(KERN_ERR "cf-mips: cf_init: ioremap for (%lx,%x) failed\n",
+ (unsigned long) dev->base, CFDEV_BUF_SIZE);
+ return -EBUSY;
+ }
+
+ if (!cf_present(dev)) {
+ printk(KERN_WARNING "cf-mips: cf card not present\n");
+ iounmap(dev->baddr);
+ return -ENODEV;
+ }
+
+ if (do_reset(dev) != CF_TRANS_OK) {
+ printk(KERN_ERR "cf-mips: cf reset failed\n");
+ iounmap(dev->baddr);
+ return -EBUSY;
+ }
+
+ if (!do_identify(dev)) {
+ printk(KERN_ERR "cf-mips: cf identify failed\n");
+ iounmap(dev->baddr);
+ return -EBUSY;
+ }
+
+/* set_apm_level(ATA_APM_WITH_STANDBY); */
+ init_multiple(dev);
+
+ init_timer(&dev->to_timer);
+ dev->to_timer.function = cf_async_timeout;
+ dev->to_timer.data = (unsigned long)dev;
+
+ prepare_cf_irq(dev);
+ if (request_irq(dev->irq, cf_irq_handler, 0, "CF Mips", dev)) {
+ printk(KERN_ERR "cf-mips: failed to get irq\n");
+ iounmap(dev->baddr);
+ return -EBUSY;
+ }
+ /* Disable below would be odd, because request will enable, and the tasklet
+ will disable it itself */
+ //disable_irq(dev->irq);
+
+ dev->async_mode = 1;
+
+ return 0;
+}
+
+void cf_cleanup(struct cf_mips_dev *dev)
+{
+ iounmap(dev->baddr);
+ free_irq(dev->irq, NULL);
+#if REQUEST_MEM_REGION
+ release_mem_region((unsigned long)dev->base, CFDEV_BUF_SIZE);
+#endif
+}
+
+
+/*eof*/
diff -urN linux.old/drivers/block/rb500/ata.h linux.dev/drivers/block/rb500/ata.h
--- linux.old/drivers/block/rb500/ata.h 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/block/rb500/ata.h 2006-06-09 00:15:23.000000000 +0200
@@ -0,0 +1,132 @@
+#ifndef __CFMIPS_ATA_H__
+#define __CFMIPS_ATA_H__
+
+#include <linux/interrupt.h>
+
+#define CFG_DC_DEV1 (void*)0xb8010010
+#define CFG_DC_DEVBASE 0x0
+#define CFG_DC_DEVMASK 0x4
+#define CFG_DC_DEVC 0x8
+#define CFG_DC_DEVTC 0xC
+
+#define CFDEV_BUF_SIZE 0x1000
+#define ATA_CIS_OFFSET 0x200
+#define ATA_REG_OFFSET 0x800
+#define ATA_DBUF_OFFSET 0xC00
+
+#define ATA_REG_FEAT 0x1
+#define ATA_REG_SC 0x2
+#define ATA_REG_SN 0x3
+#define ATA_REG_CL 0x4
+#define ATA_REG_CH 0x5
+#define ATA_REG_DH 0x6
+#define ATA_REG_DH_BASE 0xa0
+#define ATA_REG_DH_LBA 0x40
+#define ATA_REG_DH_DRV 0x10
+#define ATA_REG_CMD 0x7
+#define ATA_REG_ST 0x7
+#define ATA_REG_ST_BUSY 0x80
+#define ATA_REG_ST_RDY 0x40
+#define ATA_REG_ST_DWF 0x20
+#define ATA_REG_ST_DSC 0x10
+#define ATA_REG_ST_DRQ 0x08
+#define ATA_REG_ST_CORR 0x04
+#define ATA_REG_ST_ERR 0x01
+#define ATA_REG_ERR 0xd
+#define ATA_REG_DC 0xe
+#define ATA_REG_DC_IEN 0x02
+#define ATA_REG_DC_SRST 0x04
+
+#define ATA_CMD_READ_SECTORS 0x20
+#define ATA_CMD_WRITE_SECTORS 0x30
+#define ATA_CMD_EXEC_DRIVE_DIAG 0x90
+#define ATA_CMD_READ_MULTIPLE 0xC4
+#define ATA_CMD_WRITE_MULTIPLE 0xC5
+#define ATA_CMD_SET_MULTIPLE 0xC6
+#define ATA_CMD_IDENTIFY_DRIVE 0xEC
+#define ATA_CMD_SET_FEATURES 0xEF
+
+#define ATA_FEATURE_ENABLE_APM 0x05
+#define ATA_FEATURE_DISABLE_APM 0x85
+#define ATA_APM_DISABLED 0x00
+#define ATA_APM_MIN_POWER 0x01
+#define ATA_APM_WITH_STANDBY 0x7f
+#define ATA_APM_WITHOUT_STANDBY 0x80
+#define ATA_APM_MAX_PERFORMANCE 0xfe
+
+#define CF_SECT_SIZE 0x200
+/* That is the ratio CF_SECT_SIZE/512 (the kernel sector size) */
+#define CF_KERNEL_MUL 1
+#define ATA_MAX_SECT_PER_CMD 0x100
+
+#define CF_TRANS_FAILED 0
+#define CF_TRANS_OK 1
+#define CF_TRANS_IN_PROGRESS 2
+
+
+enum trans_state {
+ TS_IDLE = 0,
+ TS_AFTER_RESET,
+ TS_READY,
+ TS_CMD,
+ TS_TRANS
+};
+
+//
+// #if DEBUG
+// static unsigned long busy_time;
+// #endif
+
+/** Struct to hold the cfdev
+Actually, all the data here only has one instance. However, for
+reasons of programming conformity, it is passed around as a pointer
+*/
+struct cf_mips_dev {
+ void *base; /* base address for I/O */
+ void *baddr; /* remapped address */
+
+ int pin; /* gpio pin */
+ int irq; /* gpio irq */
+
+ unsigned head;
+ unsigned cyl;
+ unsigned spt;
+ unsigned sectors;
+
+ unsigned short block_size;
+ unsigned dtype ; // ATA or CF
+ struct request_queue *queue;
+ struct gendisk *gd;
+
+ /* Transaction state */
+ enum trans_state tstate;
+ char *tbuf;
+ unsigned long tbuf_size;
+ sector_t tsect_start;
+ unsigned tsector_count;
+ unsigned tsectors_left;
+ int tread;
+ unsigned tcmd;
+ int async_mode;
+ unsigned long irq_enable_time;
+
+ struct request *active_req; /* A request is being carried out. Is that different from tstate? */
+ int users;
+ struct timer_list to_timer;
+ struct tasklet_struct tasklet;
+
+ /** This lock ensures that the requests to this device are all done
+ atomically. Transfers can run in parallel, requests are all queued
+ one-by-one */
+ spinlock_t lock;
+};
+
+int cf_do_transfer(struct cf_mips_dev* dev,sector_t sector, unsigned long nsect,
+ char* buffer, int is_write);
+int cf_init(struct cf_mips_dev* dev);
+void cf_cleanup(struct cf_mips_dev* dev);
+
+void cf_async_trans_done(struct cf_mips_dev* dev, int result);
+// void *cf_get_next_buf(unsigned long *buf_size);
+
+#endif
diff -urN linux.old/drivers/block/rb500/bdev.c linux.dev/drivers/block/rb500/bdev.c
--- linux.old/drivers/block/rb500/bdev.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/block/rb500/bdev.c 2006-06-15 16:29:04.000000000 +0200
@@ -0,0 +1,340 @@
+/* CF-mips driver
+ This is a block driver for the direct (mmaped) interface to the CF-slot,
+ found in Routerboard.com's RB532 board
+ See SDK provided from routerboard.com.
+
+ Module adapted By P.Christeas <p_christeas@yahoo.com>, 2005-6.
+ Cleaned up and adapted to platform_device by Felix Fietkau <nbd@openwrt.org>
+
+ This work is redistributed under the terms of the GNU General Public License.
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/time.h>
+#include <linux/wait.h>
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/blkdev.h>
+#include <linux/blkpg.h>
+#include <linux/hdreg.h>
+#include <linux/platform_device.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#include <asm/rc32434/rb.h>
+
+#ifdef DEBUG
+#define DEBUGP printk
+#define DLEVEL 1
+#else
+#define DEBUGP(format, args...)
+#define DLEVEL 0
+#endif
+
+#define CF_MIPS_MAJOR 13
+#define MAJOR_NR CF_MIPS_MAJOR
+#define CF_MAX_PART 16 /* max 15 partitions */
+
+#include "ata.h"
+
+//extern struct block_device_operations cf_bdops;
+
+// static struct hd_struct cf_parts[CF_MAX_PART];
+// static int cf_part_sizes[CF_MAX_PART];
+// static int cf_hsect_sizes[CF_MAX_PART];
+// static int cf_max_sectors[CF_MAX_PART];
+// static int cf_blksize_sizes[CF_MAX_PART];
+
+// static spinlock_t lock = SPIN_LOCK_UNLOCKED;
+
+// volatile int cf_busy = 0;
+
+static struct request *active_req = NULL;
+
+static int cf_open (struct inode *, struct file *);
+static int cf_release (struct inode *, struct file *);
+static int cf_ioctl (struct inode *, struct file *, unsigned, unsigned long);
+
+static void cf_request(request_queue_t * q);
+static int cf_transfer(const struct request *req);
+
+/*long (*unlocked_ioctl) (struct file *, unsigned, unsigned long);
+long (*compat_ioctl) (struct file *, unsigned, unsigned long);*/
+// int (*direct_access) (struct block_device *, sector_t, unsigned long *);
+// int (*media_changed) (struct gendisk *);
+// int (*revalidate_disk) (struct gendisk *);
+
+static struct block_device_operations cf_bdops = {
+ .owner = THIS_MODULE,
+ .open = cf_open,
+ .release = cf_release,
+ .ioctl = cf_ioctl,
+ .media_changed = NULL,
+ .unlocked_ioctl = NULL,
+ .revalidate_disk = NULL,
+ .compat_ioctl = NULL,
+ .direct_access = NULL
+};
+
+
+int cf_mips_probe(struct platform_device *pdev)
+{
+ struct gendisk* cf_gendisk=NULL;
+ struct cf_device *cdev = (struct cf_device *) pdev->dev.platform_data;
+ struct cf_mips_dev *dev;
+ struct resource *r;
+ int reg_result;
+
+ reg_result = register_blkdev(MAJOR_NR, "cf-mips");
+ if (reg_result < 0) {
+ printk(KERN_WARNING "cf-mips: can't get major %d\n", MAJOR_NR);
+ return reg_result;
+ }
+
+ dev = (struct cf_mips_dev *)kmalloc(sizeof(struct cf_mips_dev),GFP_KERNEL);
+ if (!dev)
+ goto out_err;
+ memset(dev, 0, sizeof(struct cf_mips_dev));
+ cdev->dev = dev;
+
+ dev->pin = cdev->gpio_pin;
+ dev->irq = platform_get_irq_byname(pdev, "cf_irq");
+ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cf_membase");
+ dev->base = (void *) r->start;
+
+ if (cf_init(dev)) goto out_err;
+ printk("init done");
+
+ spin_lock_init(&dev->lock);
+ dev->queue = blk_init_queue(cf_request,&dev->lock);
+ if (!dev->queue){
+ printk(KERN_ERR "cf-mips: no mem for queue\n");
+ goto out_err;
+ }
+ blk_queue_max_sectors(dev->queue,ATA_MAX_SECT_PER_CMD);
+
+ /* For memory devices, it is always better to avoid crossing segments
+ inside the same request. */
+/* if (dev->dtype==0x848A){
+ printk(KERN_INFO "Setting boundary for cf to 0x%x",(dev->block_size*512)-1);
+ blk_queue_segment_boundary(dev->queue, (dev->block_size*512)-1);
+ }*/
+
+ dev->gd = alloc_disk(CF_MAX_PART);
+ cf_gendisk = dev->gd;
+ cdev->gd = dev->gd;
+ if (!cf_gendisk) goto out_err; /* Last of these goto's */
+
+ cf_gendisk->major = MAJOR_NR;
+ cf_gendisk->first_minor = 0;
+ cf_gendisk->queue=dev->queue;
+ BUG_ON(cf_gendisk->minors != CF_MAX_PART);
+ strcpy(cf_gendisk->disk_name,"cfa");
+ strcpy(cf_gendisk->devfs_name,"cf/card0");
+ cf_gendisk->fops = &cf_bdops;
+ cf_gendisk->flags = 0 ; /* is not yet GENHD_FL_REMOVABLE */
+ cf_gendisk->private_data=dev;
+
+ set_capacity(cf_gendisk,dev->sectors * CF_KERNEL_MUL);
+
+ /* Let the disk go live */
+ add_disk(cf_gendisk);
+#if 0
+ result = cf_init();
+
+ /* default cfg for all partitions */
+ memset(cf_parts, 0, sizeof (cf_parts[0]) * CF_MAX_PART);
+ memset(cf_part_sizes, 0, sizeof (cf_part_sizes[0]) * CF_MAX_PART);
+ for (i = 0; i < CF_MAX_PART; ++i) {
+ cf_hsect_sizes[i] = CF_SECT_SIZE;
+ cf_max_sectors[i] = ATA_MAX_SECT_PER_CMD;
+ cf_blksize_sizes[i] = BLOCK_SIZE;
+ }
+
+ /* setup info for whole disk (partition 0) */
+ cf_part_sizes[0] = cf_sectors / 2;
+ cf_parts[0].nr_sects = cf_sectors;
+
+ blk_size[MAJOR_NR] = cf_part_sizes;
+ blksize_size[MAJOR_NR] = cf_blksize_sizes;
+ max_sectors[MAJOR_NR] = cf_max_sectors;
+ hardsect_size[MAJOR_NR] = cf_hsect_sizes;
+ read_ahead[MAJOR_NR] = 8; /* (4kB) */
+
+ blk_init_queue(BLK_DEFAULT_QUEUE(MAJOR_NR), DEVICE_REQUEST);
+
+ add_gendisk(&cf_gendisk);
+#endif
+// printk(KERN_INFO "cf-mips partition check: \n");
+// register_disk(cf_gendisk, MKDEV(MAJOR_NR, 0), CF_MAX_PART,
+// &cf_bdops, dev->sectors);
+ return 0;
+
+out_err:
+ if (dev->queue){
+ blk_cleanup_queue(dev->queue);
+ }
+ if (reg_result) {
+ unregister_blkdev(MAJOR_NR, "cf-mips");
+ return reg_result;
+ }
+ if (dev){
+ cf_cleanup(dev);
+ kfree(dev);
+ }
+ return 1;
+}
+
+static int
+cf_mips_remove(struct platform_device *pdev)
+{
+ struct cf_device *cdev = (struct cf_device *) pdev->dev.platform_data;
+ struct cf_mips_dev *dev = (struct cf_mips_dev *) cdev->dev;
+
+ unregister_blkdev(MAJOR_NR, "cf-mips");
+ blk_cleanup_queue(dev->queue);
+
+ del_gendisk(dev->gd);
+ cf_cleanup(dev);
+ return 0;
+}
+
+
+static struct platform_driver cf_driver = {
+ .driver.name = "rb500-cf",
+ .probe = cf_mips_probe,
+ .remove = cf_mips_remove,
+};
+
+static int __init cf_mips_init(void)
+{
+ printk(KERN_INFO "cf-mips module loaded\n");
+ return platform_driver_register(&cf_driver);
+}
+
+static void cf_mips_cleanup(void)
+{
+ platform_driver_unregister(&cf_driver);
+ printk(KERN_INFO "cf-mips module removed\n");
+}
+
+module_init(cf_mips_init);
+module_exit(cf_mips_cleanup);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_BLOCKDEV_MAJOR(CF_MIPS_MAJOR);
+
+
+static int cf_open(struct inode *inode, struct file *filp)
+{
+ struct cf_mips_dev *dev=inode->i_bdev->bd_disk->private_data;
+ int minor = MINOR(inode->i_rdev);
+
+ if (minor >= CF_MAX_PART)
+ return -ENODEV;
+ //DEBUGP(KERN_INFO "cf-mips module opened, minor %d\n", minor);
+ spin_lock(&dev->lock);
+ dev->users++;
+ spin_unlock(&dev->lock);
+ filp->private_data=dev;
+
+ /* dirty workaround to set CFRDY GPIO as an input when some other
+ program sets it as an output */
+ gpio_set(CFG, (1 << dev->pin), 0);
+ return 0; /* success */
+}
+
+static int cf_release(struct inode *inode, struct file *filp)
+{
+ int minor = MINOR(inode->i_rdev);
+ struct cf_mips_dev *dev=inode->i_bdev->bd_disk->private_data;
+ spin_lock(&dev->lock);
+ dev->users--;
+ spin_unlock(&dev->lock);
+ return 0;
+}
+
+static int cf_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ unsigned minor = MINOR(inode->i_rdev);
+ struct cf_mips_dev *dev=inode->i_bdev->bd_disk->private_data;
+
+ DEBUGP(KERN_INFO "cf_ioctl cmd %u\n", cmd);
+ switch (cmd) {
+ case BLKRRPART: /* re-read partition table */
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+ printk(KERN_INFO "cf-mips partition check: \n");
+ register_disk(dev->gd);
+ return 0;
+
+ case HDIO_GETGEO:
+ {
+ struct hd_geometry geo;
+ geo.cylinders = dev->cyl;
+ geo.heads = dev->head;
+ geo.sectors = dev->spt;
+ geo.start = (*dev->gd->part)[minor].start_sect;
+ if (copy_to_user((void *) arg, &geo, sizeof (geo)))
+ return -EFAULT;
+ }
+ return 0;
+ }
+
+ return -EINVAL; /* unknown command */
+}
+
+static void cf_request(request_queue_t * q)
+{
+ struct cf_mips_dev* dev;
+
+ struct request * req;
+ int status;
+
+ /* We could have q->queuedata = dev , but haven't yet. */
+ if (active_req)
+ return;
+
+ while ((req=elv_next_request(q))!=NULL){
+ dev=req->rq_disk->private_data;
+ status=cf_transfer(req);
+ if (status==CF_TRANS_IN_PROGRESS){
+ active_req=req;
+ return;
+ }
+ end_request(req,status);
+ }
+}
+
+static int cf_transfer(const struct request *req)
+{
+ struct cf_mips_dev* dev=req->rq_disk->private_data;
+
+ if (!blk_fs_request(req)){
+ if (printk_ratelimit())
+ printk(KERN_WARNING "cf-mips: skipping non-fs request 0x%x\n",req->cmd[0]);
+ return CF_TRANS_FAILED;
+ }
+
+ return cf_do_transfer(dev,req->sector,req->current_nr_sectors,req->buffer,rq_data_dir(req));
+}
+
+void cf_async_trans_done(struct cf_mips_dev * dev,int result)
+{
+ struct request *req;
+
+ spin_lock(&dev->lock);
+ req=active_req;
+ active_req=NULL;
+ end_request(req,result);
+ spin_unlock(&dev->lock);
+
+ spin_lock(&dev->lock);
+ cf_request(dev->queue);
+ spin_unlock(&dev->lock);
+}
+
diff -urN linux.old/drivers/block/rb500/Makefile linux.dev/drivers/block/rb500/Makefile
--- linux.old/drivers/block/rb500/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/block/rb500/Makefile 2006-06-08 22:14:58.000000000 +0200
@@ -0,0 +1,3 @@
+## Makefile for the RB532 CF port
+
+obj-y += bdev.o ata.o
diff -urN linux.old/drivers/Makefile linux.dev/drivers/Makefile
--- linux.old/drivers/Makefile 2006-06-08 20:20:52.000000000 +0200
+++ linux.dev/drivers/Makefile 2006-06-08 22:14:58.000000000 +0200
@@ -73,3 +73,4 @@
obj-y += firmware/
obj-$(CONFIG_CRYPTO) += crypto/
obj-$(CONFIG_SUPERH) += sh/
+obj-$(CONFIG_BLK_DEV_CF_MIPS) += block/rb500/
\ No newline at end of file

311
target/linux/rb532-2.6/patches/130-custom_partitions.patch Normal file
View File

@@ -0,0 +1,311 @@
diff -urN linux.old/fs/partitions/check.c linux.dev/fs/partitions/check.c
--- linux.old/fs/partitions/check.c 2006-05-31 02:31:44.000000000 +0200
+++ linux.dev/fs/partitions/check.c 2006-06-15 01:27:17.000000000 +0200
@@ -29,6 +29,7 @@
#include "ldm.h"
#include "mac.h"
#include "msdos.h"
+#include "openwrt.h"
#include "osf.h"
#include "sgi.h"
#include "sun.h"
@@ -48,6 +49,9 @@
* Probe partition formats with tables at disk address 0
* that also have an ADFS boot block at 0xdc0.
*/
+#ifdef CONFIG_OPENWRT_PARTITION
+ openwrt_partition,
+#endif
#ifdef CONFIG_ACORN_PARTITION_ICS
adfspart_check_ICS,
#endif
diff -urN linux.old/fs/partitions/Kconfig linux.dev/fs/partitions/Kconfig
--- linux.old/fs/partitions/Kconfig 2006-05-31 02:31:44.000000000 +0200
+++ linux.dev/fs/partitions/Kconfig 2006-06-15 01:27:17.000000000 +0200
@@ -14,6 +14,12 @@
If unsure, say N.
+config OPENWRT_PARTITION
+ bool "OpenWrt partition support" if PARTITION_ADVANCED
+ default y
+ help
+ Support the custom OpenWrt partition map
+
config ACORN_PARTITION
bool "Acorn partition support" if PARTITION_ADVANCED
default y if ARCH_ACORN
diff -urN linux.old/fs/partitions/Makefile linux.dev/fs/partitions/Makefile
--- linux.old/fs/partitions/Makefile 2006-05-31 02:31:44.000000000 +0200
+++ linux.dev/fs/partitions/Makefile 2006-06-15 01:27:17.000000000 +0200
@@ -11,6 +11,7 @@
obj-$(CONFIG_MAC_PARTITION) += mac.o
obj-$(CONFIG_LDM_PARTITION) += ldm.o
obj-$(CONFIG_MSDOS_PARTITION) += msdos.o
+obj-$(CONFIG_OPENWRT_PARTITION) += openwrt.o
obj-$(CONFIG_OSF_PARTITION) += osf.o
obj-$(CONFIG_SGI_PARTITION) += sgi.o
obj-$(CONFIG_SUN_PARTITION) += sun.o
diff -urN linux.old/fs/partitions/openwrt.c linux.dev/fs/partitions/openwrt.c
--- linux.old/fs/partitions/openwrt.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/fs/partitions/openwrt.c 2006-06-15 01:27:17.000000000 +0200
@@ -0,0 +1,249 @@
+/*
+ * fs/partitions/openwrt.c
+ *
+ * Code extracted from drivers/block/genhd.c
+ * and fs/partitions/msdos.c
+ *
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 1991-1998 Linus Torvalds
+ *
+ * Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug
+ * in the early extended-partition checks and added DM partitions
+ *
+ * Support for DiskManager v6.0x added by Mark Lord,
+ * with information provided by OnTrack. This now works for linux fdisk
+ * and LILO, as well as loadlin and bootln. Note that disks other than
+ * /dev/hda *must* have a "DOS" type 0x51 partition in the first slot (hda1).
+ *
+ * More flexible handling of extended partitions - aeb, 950831
+ *
+ * Check partition table on IDE disks for common CHS translations
+ *
+ * Re-organised Feb 1998 Russell King
+ */
+
+#include <linux/config.h>
+
+#include "check.h"
+#include "openwrt.h"
+
+/*
+ * Many architectures don't like unaligned accesses, while
+ * the nr_sects and start_sect partition table entries are
+ * at a 2 (mod 4) address.
+ */
+#include <asm/unaligned.h>
+
+#define SYS_IND(p) (get_unaligned(&p->sys_ind))
+#define NR_SECTS(p) ({ __typeof__(p->nr_sects) __a = \
+ get_unaligned(&p->nr_sects); \
+ le32_to_cpu(__a); \
+ })
+
+#define START_SECT(p) ({ __typeof__(p->start_sect) __a = \
+ get_unaligned(&p->start_sect); \
+ le32_to_cpu(__a); \
+ })
+
+static inline int is_extended_partition(struct partition *p)
+{
+ return (SYS_IND(p) == DOS_EXTENDED_PARTITION ||
+ SYS_IND(p) == WIN98_EXTENDED_PARTITION ||
+ SYS_IND(p) == LINUX_EXTENDED_PARTITION);
+}
+
+#define MSDOS_LABEL_MAGIC1 0x55
+#define MSDOS_LABEL_MAGIC2 0xAA
+
+static inline int
+msdos_magic_present(unsigned char *p)
+{
+ return (p[0] == MSDOS_LABEL_MAGIC1 && p[1] == MSDOS_LABEL_MAGIC2);
+}
+
+static inline int
+openwrt_magic_present(unsigned char *p)
+{
+ return (p[0] == 'O' &&
+ p[1] == 'W' &&
+ p[2] == 'R' &&
+ p[3] == 'T');
+}
+
+/*
+ * Create devices for each logical partition in an extended partition.
+ * The logical partitions form a linked list, with each entry being
+ * a partition table with two entries. The first entry
+ * is the real data partition (with a start relative to the partition
+ * table start). The second is a pointer to the next logical partition
+ * (with a start relative to the entire extended partition).
+ * We do not create a Linux partition for the partition tables, but
+ * only for the actual data partitions.
+ */
+
+static void
+parse_extended(struct parsed_partitions *state, struct block_device *bdev,
+ u32 first_sector, u32 first_size)
+{
+ struct partition *p;
+ Sector sect;
+ unsigned char *data;
+ u32 this_sector, this_size;
+ int sector_size = bdev_hardsect_size(bdev) / 512;
+ int loopct = 0; /* number of links followed
+ without finding a data partition */
+ int i;
+
+ this_sector = first_sector;
+ this_size = first_size;
+
+ while (1) {
+ if (++loopct > 100)
+ return;
+ if (state->next == state->limit)
+ return;
+ data = read_dev_sector(bdev, this_sector, &sect);
+ if (!data)
+ return;
+
+ if (!msdos_magic_present(data + 510))
+ goto done;
+
+ p = (struct partition *) (data + 0x1be);
+
+ /*
+ * Usually, the first entry is the real data partition,
+ * the 2nd entry is the next extended partition, or empty,
+ * and the 3rd and 4th entries are unused.
+ * However, DRDOS sometimes has the extended partition as
+ * the first entry (when the data partition is empty),
+ * and OS/2 seems to use all four entries.
+ */
+
+ /*
+ * First process the data partition(s)
+ */
+ for (i=0; i<4; i++, p++) {
+ u32 offs, size, next;
+ if (!NR_SECTS(p) || is_extended_partition(p))
+ continue;
+
+ /* Check the 3rd and 4th entries -
+ these sometimes contain random garbage */
+ offs = START_SECT(p)*sector_size;
+ size = NR_SECTS(p)*sector_size;
+ next = this_sector + offs;
+ if (i >= 2) {
+ if (offs + size > this_size)
+ continue;
+ if (next < first_sector)
+ continue;
+ if (next + size > first_sector + first_size)
+ continue;
+ }
+
+ put_partition(state, state->next, next, size);
+ if (SYS_IND(p) == LINUX_RAID_PARTITION)
+ state->parts[state->next].flags = 1;
+ loopct = 0;
+ if (++state->next == state->limit)
+ goto done;
+ }
+ /*
+ * Next, process the (first) extended partition, if present.
+ * (So far, there seems to be no reason to make
+ * parse_extended() recursive and allow a tree
+ * of extended partitions.)
+ * It should be a link to the next logical partition.
+ */
+ p -= 4;
+ for (i=0; i<4; i++, p++)
+ if (NR_SECTS(p) && is_extended_partition(p))
+ break;
+ if (i == 4)
+ goto done; /* nothing left to do */
+
+ this_sector = first_sector + START_SECT(p) * sector_size;
+ this_size = NR_SECTS(p) * sector_size;
+ put_dev_sector(sect);
+ }
+done:
+ put_dev_sector(sect);
+}
+
+
+int openwrt_partition(struct parsed_partitions *state, struct block_device *bdev)
+{
+ int sector_size = bdev_hardsect_size(bdev) / 512;
+ Sector sect;
+ unsigned char *data;
+ struct partition *p;
+ int slot;
+ u32 last_block = 0;
+ u32 size = 0;
+ int firstfree = 5;
+
+ data = read_dev_sector(bdev, 0, &sect);
+ if (!data)
+ return -1;
+ if (!openwrt_magic_present(data)) {
+ printk("No OpenWrt partition table detected\n");
+ put_dev_sector(sect);
+ return 0;
+ }
+
+ /*
+ * Now that the 55aa signature is present, this is probably
+ * either the boot sector of a FAT filesystem or a DOS-type
+ * partition table. Reject this in case the boot indicator
+ * is not 0 or 0x80.
+ */
+ p = (struct partition *) (data + 0x1be);
+ for (slot = 1; slot <= 4; slot++, p++) {
+ if (p->boot_ind != 0 && p->boot_ind != 0x80) {
+ put_dev_sector(sect);
+ return 0;
+ }
+ }
+
+ p = (struct partition *) (data + 0x1be);
+
+ /*
+ * Look for partitions in two passes:
+ * First find the primary and DOS-type extended partitions.
+ */
+
+ state->next = 6;
+ for (slot = 1 ; slot <= 4 ; slot++, p++) {
+ u32 start = START_SECT(p)*sector_size;
+ size = NR_SECTS(p)*sector_size;
+ if (!size) {
+ if (firstfree > slot)
+ firstfree = slot;
+
+ continue;
+ }
+ if (is_extended_partition(p)) {
+ /* prevent someone doing mkfs or mkswap on an
+ extended partition, but leave room for LILO */
+ last_block = start + size;
+ put_partition(state, slot, start, size == 1 ? 1 : 2);
+ printk(" <");
+ parse_extended(state, bdev, start, size);
+ printk(" >");
+ continue;
+ }
+ if ((start + size) > get_capacity(bdev->bd_disk))
+ size = get_capacity(bdev->bd_disk) - start;
+ last_block = start + size;
+ put_partition(state, slot, start, size);
+ }
+ if (last_block + 1024 < (size = get_capacity(bdev->bd_disk)))
+ put_partition(state, firstfree, last_block, size - last_block);
+
+ printk("\n");
+
+ put_dev_sector(sect);
+ return 1;
+}
+
diff -urN linux.old/fs/partitions/openwrt.h linux.dev/fs/partitions/openwrt.h
--- linux.old/fs/partitions/openwrt.h 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/fs/partitions/openwrt.h 2006-06-15 01:27:17.000000000 +0200
@@ -0,0 +1,6 @@
+/*
+ * fs/partitions/openwrt.h
+ */
+
+int openwrt_partition(struct parsed_partitions *state, struct block_device *bdev);
+

13
target/linux/rb532-2.6/patches/200-bridge_resource_hack.patch Normal file
View File

@@ -0,0 +1,13 @@
--- linux.old/arch/mips/pci/pci.c 2006-04-19 08:10:14.000000000 +0200
+++ linux.dev/arch/mips/pci/pci.c 2006-06-14 20:23:18.000000000 +0200
@@ -65,8 +65,10 @@
/*
* Put everything into 0x00-0xff region modulo 0x400
*/
+#ifndef CONFIG_MIKROTIK_RB500
if (start & 0x300)
start = (start + 0x3ff) & ~0x3ff;
+#endif
} else if (res->flags & IORESOURCE_MEM) {
/* Make sure we start at our min on all hoses */
if (start < PCIBIOS_MIN_MEM + hose->mem_resource->start)

46
target/linux/rb532-2.6/patches/210-pci_fixes.patch Normal file
View File

@@ -0,0 +1,46 @@
diff -urN linux.old/drivers/pci/probe.c linux.dev/drivers/pci/probe.c
--- linux.old/drivers/pci/probe.c 2006-06-08 20:21:20.000000000 +0200
+++ linux.dev/drivers/pci/probe.c 2006-06-08 20:19:40.000000000 +0200
@@ -760,15 +760,22 @@
u32 l;
u8 hdr_type;
int delay = 1;
-
- if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, &l))
- return NULL;
-
- /* some broken boards return 0 or ~0 if a slot is empty: */
- if (l == 0xffffffff || l == 0x00000000 ||
- l == 0x0000ffff || l == 0xffff0000)
- return NULL;
-
+ do {
+ if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, &l))
+ return NULL;
+ /* some broken boards return 0 or ~0 if a slot is empty: */
+ if (l == 0xffffffff || l == 0x00000000 ||
+ l == 0x0000ffff || l == 0xffff0000){
+ if (delay > 4)
+ return NULL;
+ /* But that could also be the previous dev not settled */
+ pr_debug("PCI: retrying scan at 0x%x, because config is 0x%x\n",devfn,l);
+ msleep(delay);
+ delay *=2;
+ l=0;
+ }
+ }while (l==0);
+
/* Configuration request Retry Status */
while (l == 0xffff0001) {
msleep(delay);
@@ -903,7 +910,10 @@
/* Go find them, Rover! */
for (devfn = 0; devfn < 0x100; devfn += 8)
+ {
+ if (bus->number == 0 && (devfn >> 3) > 21) break;
pci_scan_slot(bus, devfn);
+ }
/*
* After performing arch-dependent fixup of the bus, look behind

18
target/linux/rb532-2.6/patches/220-serial_fix.patch Normal file
View File

@@ -0,0 +1,18 @@
diff -urN linux.old/drivers/serial/8250.c linux.dev/drivers/serial/8250.c
--- linux.old/drivers/serial/8250.c 2006-06-08 20:21:20.000000000 +0200
+++ linux.dev/drivers/serial/8250.c 2006-06-08 20:19:40.000000000 +0200
@@ -351,6 +351,13 @@
default:
outb(value, up->port.iobase + offset);
}
+
+#if defined(CONFIG_IDT_EB434) || defined(CONFIG_MIKROTIK_RB500)
+ __SLOW_DOWN_IO;
+ __SLOW_DOWN_IO;
+ __SLOW_DOWN_IO;
+ __SLOW_DOWN_IO;
+#endif
}
/*

13
target/linux/rb532-2.6/patches/230-dma_limit.patch Normal file
View File

@@ -0,0 +1,13 @@
diff -urN linux.old/arch/mips/mm/init.c linux.dev/arch/mips/mm/init.c
--- linux.old/arch/mips/mm/init.c 2006-06-08 20:21:20.000000000 +0200
+++ linux.dev/arch/mips/mm/init.c 2006-06-08 20:19:40.000000000 +0200
@@ -149,7 +149,7 @@
kmap_init();
#endif
- max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
+ max_dma = virt_to_phys((char *) (256 * 1024 * 1024)) >> PAGE_SHIFT;
low = max_low_pfn;
high = highend_pfn;

461
target/linux/rb532-2.6/patches/240-via_rhine_performance.patch Normal file
View File

@@ -0,0 +1,461 @@
diff -urN linux.old/drivers/net/via-rhine.c linux.dev/drivers/net/via-rhine.c
--- linux.old/drivers/net/via-rhine.c 2006-06-08 20:21:20.000000000 +0200
+++ linux.dev/drivers/net/via-rhine.c 2006-06-08 20:19:40.000000000 +0200
@@ -131,6 +131,10 @@
- Fix Tx engine race for good
- Craig Brind: Zero padded aligned buffers for short packets.
+ OpenWrt Version (Felix Fietkau <nbd@openwrt.org>)
+ - Performance improvements
+ - NAPI polling
+
*/
#define DRV_NAME "via-rhine"
@@ -142,7 +146,6 @@
These may be modified when a driver module is loaded. */
static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
-static int max_interrupt_work = 20;
/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
Setting to > 1518 effectively disables this feature. */
@@ -165,9 +168,9 @@
Making the Tx ring too large decreases the effectiveness of channel
bonding and packet priority.
There are no ill effects from too-large receive rings. */
-#define TX_RING_SIZE 16
-#define TX_QUEUE_LEN 10 /* Limit ring entries actually used. */
-#define RX_RING_SIZE 16
+#define TX_RING_SIZE 128
+#define TX_QUEUE_LEN 120 /* Limit ring entries actually used. */
+#define RX_RING_SIZE 128
/* Operational parameters that usually are not changed. */
@@ -201,6 +204,7 @@
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
+#include <asm/unaligned.h>
/* These identify the driver base version and may not be removed. */
static char version[] __devinitdata =
@@ -217,10 +221,8 @@
MODULE_DESCRIPTION("VIA Rhine PCI Fast Ethernet driver");
MODULE_LICENSE("GPL");
-module_param(max_interrupt_work, int, 0);
module_param(debug, int, 0);
module_param(rx_copybreak, int, 0);
-MODULE_PARM_DESC(max_interrupt_work, "VIA Rhine maximum events handled per interrupt");
MODULE_PARM_DESC(debug, "VIA Rhine debug level (0-7)");
MODULE_PARM_DESC(rx_copybreak, "VIA Rhine copy breakpoint for copy-only-tiny-frames");
@@ -461,6 +463,8 @@
struct tx_desc *tx_ring;
dma_addr_t rx_ring_dma;
dma_addr_t tx_ring_dma;
+ u32 istat;
+ u32 imask;
/* The addresses of receive-in-place skbuffs. */
struct sk_buff *rx_skbuff[RX_RING_SIZE];
@@ -504,9 +508,10 @@
static void rhine_check_media_task(struct net_device *dev);
static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev);
static irqreturn_t rhine_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
-static void rhine_tx(struct net_device *dev);
-static void rhine_rx(struct net_device *dev);
-static void rhine_error(struct net_device *dev, int intr_status);
+static int rhine_poll(struct net_device *dev, int *budget);
+static int rhine_tx(struct net_device *dev);
+static int rhine_rx(struct net_device *dev);
+static void rhine_error(struct net_device *dev);
static void rhine_set_rx_mode(struct net_device *dev);
static struct net_device_stats *rhine_get_stats(struct net_device *dev);
static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
@@ -601,6 +606,8 @@
struct rhine_private *rp = netdev_priv(dev);
void __iomem *ioaddr = rp->base;
+ pci_enable_device(rp->pdev);
+
iowrite8(Cmd1Reset, ioaddr + ChipCmd1);
IOSYNC;
@@ -622,6 +629,28 @@
"failed" : "succeeded");
}
+static inline void rhine_intr_enable(struct net_device *dev)
+{
+ struct rhine_private *rp = netdev_priv(dev);
+ void __iomem *ioaddr = rp->base;
+
+ iowrite16(rp->imask = (IntrRxDone | IntrRxErr | IntrRxEmpty| IntrRxOverflow |
+ IntrRxDropped | IntrRxNoBuf | IntrTxAborted |
+ IntrTxDone | IntrTxError | IntrTxUnderrun |
+ IntrPCIErr | IntrStatsMax | IntrLinkChange),
+ ioaddr + IntrEnable);
+}
+
+static inline void rhine_intr_disable(struct net_device *dev)
+{
+ struct rhine_private *rp = netdev_priv(dev);
+ void __iomem *ioaddr = rp->base;
+
+ iowrite16(rp->imask = (IntrRxOverflow | IntrRxNoBuf | IntrTxAborted |
+ IntrTxError | IntrTxUnderrun | IntrPCIErr | IntrStatsMax | IntrLinkChange),
+ ioaddr + IntrEnable);
+}
+
#ifdef USE_MMIO
static void enable_mmio(long pioaddr, u32 quirks)
{
@@ -664,14 +693,26 @@
}
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void rhine_poll(struct net_device *dev)
+static int rhine_poll(struct net_device *dev, int *budget)
{
- disable_irq(dev->irq);
- rhine_interrupt(dev->irq, (void *)dev, NULL);
- enable_irq(dev->irq);
+ unsigned int work_done, work_to_do = min(*budget, dev->quota);
+ struct rhine_private *rp = netdev_priv(dev);
+
+ work_done = rhine_rx(dev);
+
+ if (rp->istat & (IntrTxErrSummary | IntrTxDone))
+ rhine_tx(dev);
+
+ *budget -= work_done;
+ dev->quota -= work_done;
+
+ if (work_done < work_to_do) {
+ netif_rx_complete(dev);
+ rhine_intr_enable(dev);
+ }
+
+ return (work_done >= work_to_do);
}
-#endif
static void rhine_hw_init(struct net_device *dev, long pioaddr)
{
@@ -850,11 +891,10 @@
dev->ethtool_ops = &netdev_ethtool_ops;
dev->tx_timeout = rhine_tx_timeout;
dev->watchdog_timeo = TX_TIMEOUT;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- dev->poll_controller = rhine_poll;
-#endif
- if (rp->quirks & rqRhineI)
- dev->features |= NETIF_F_SG|NETIF_F_HW_CSUM;
+ dev->poll = rhine_poll;
+ dev->weight = 64;
+
+ dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM;
INIT_WORK(&rp->tx_timeout_task,
(void (*)(void *))rhine_tx_timeout_task, dev);
@@ -904,6 +944,10 @@
}
}
rp->mii_if.phy_id = phy_id;
+
+ // shut down until somebody really needs it
+ iowrite8(0x80, ioaddr + 0xa1);
+ pci_set_power_state(rp->pdev, 3);
return 0;
@@ -995,7 +1039,7 @@
/* Fill in the Rx buffers. Handle allocation failure gracefully. */
for (i = 0; i < RX_RING_SIZE; i++) {
- struct sk_buff *skb = dev_alloc_skb(rp->rx_buf_sz);
+ struct sk_buff *skb = dev_alloc_skb(rp->rx_buf_sz + 4);
rp->rx_skbuff[i] = skb;
if (skb == NULL)
break;
@@ -1115,11 +1159,7 @@
rhine_set_rx_mode(dev);
/* Enable interrupts by setting the interrupt mask. */
- iowrite16(IntrRxDone | IntrRxErr | IntrRxEmpty| IntrRxOverflow |
- IntrRxDropped | IntrRxNoBuf | IntrTxAborted |
- IntrTxDone | IntrTxError | IntrTxUnderrun |
- IntrPCIErr | IntrStatsMax | IntrLinkChange,
- ioaddr + IntrEnable);
+ rhine_intr_enable(dev);
iowrite16(CmdStart | CmdTxOn | CmdRxOn | (Cmd1NoTxPoll << 8),
ioaddr + ChipCmd);
@@ -1230,6 +1270,7 @@
mdio_read(dev, rp->mii_if.phy_id, MII_BMSR));
netif_start_queue(dev);
+ netif_poll_enable(dev);
return 0;
}
@@ -1268,8 +1309,8 @@
/* Reinitialize the hardware. */
rhine_chip_reset(dev);
init_registers(dev);
-
spin_unlock(&rp->lock);
+
enable_irq(rp->pdev->irq);
dev->trans_start = jiffies;
@@ -1363,69 +1404,56 @@
struct net_device *dev = dev_instance;
struct rhine_private *rp = netdev_priv(dev);
void __iomem *ioaddr = rp->base;
- u32 intr_status;
- int boguscnt = max_interrupt_work;
int handled = 0;
- while ((intr_status = get_intr_status(dev))) {
+ if ((rp->istat = (get_intr_status(dev) & rp->imask))) {
handled = 1;
/* Acknowledge all of the current interrupt sources ASAP. */
- if (intr_status & IntrTxDescRace)
+ if (rp->istat & IntrTxDescRace)
iowrite8(0x08, ioaddr + IntrStatus2);
- iowrite16(intr_status & 0xffff, ioaddr + IntrStatus);
+ iowrite16(rp->istat & 0xffff, ioaddr + IntrStatus);
IOSYNC;
- if (debug > 4)
- printk(KERN_DEBUG "%s: Interrupt, status %8.8x.\n",
- dev->name, intr_status);
+ if (likely(rp->istat & ((IntrRxDone | IntrRxErr | IntrRxDropped |
+ IntrRxWakeUp | IntrRxEmpty | IntrRxNoBuf |
+ IntrTxErrSummary | IntrTxDone)))) {
+
+ rhine_intr_disable(dev);
- if (intr_status & (IntrRxDone | IntrRxErr | IntrRxDropped |
- IntrRxWakeUp | IntrRxEmpty | IntrRxNoBuf))
- rhine_rx(dev);
-
- if (intr_status & (IntrTxErrSummary | IntrTxDone)) {
- if (intr_status & IntrTxErrSummary) {
- /* Avoid scavenging before Tx engine turned off */
- RHINE_WAIT_FOR(!(ioread8(ioaddr+ChipCmd) & CmdTxOn));
- if (debug > 2 &&
- ioread8(ioaddr+ChipCmd) & CmdTxOn)
- printk(KERN_WARNING "%s: "
- "rhine_interrupt() Tx engine"
- "still on.\n", dev->name);
- }
- rhine_tx(dev);
+ if (likely(netif_rx_schedule_prep(dev)))
+ __netif_rx_schedule(dev);
}
/* Abnormal error summary/uncommon events handlers. */
- if (intr_status & (IntrPCIErr | IntrLinkChange |
+ if (unlikely(rp->istat & (IntrPCIErr | IntrLinkChange |
IntrStatsMax | IntrTxError | IntrTxAborted |
- IntrTxUnderrun | IntrTxDescRace))
- rhine_error(dev, intr_status);
-
- if (--boguscnt < 0) {
- printk(KERN_WARNING "%s: Too much work at interrupt, "
- "status=%#8.8x.\n",
- dev->name, intr_status);
- break;
- }
+ IntrTxUnderrun | IntrTxDescRace)))
+ rhine_error(dev);
}
- if (debug > 3)
- printk(KERN_DEBUG "%s: exiting interrupt, status=%8.8x.\n",
- dev->name, ioread16(ioaddr + IntrStatus));
return IRQ_RETVAL(handled);
}
/* This routine is logically part of the interrupt handler, but isolated
for clarity. */
-static void rhine_tx(struct net_device *dev)
+static int rhine_tx(struct net_device *dev)
{
struct rhine_private *rp = netdev_priv(dev);
int txstatus = 0, entry = rp->dirty_tx % TX_RING_SIZE;
+ void __iomem *ioaddr = rp->base;
+ int done = 0;
- spin_lock(&rp->lock);
+ /* Avoid scavenging before Tx engine turned off */
+ RHINE_WAIT_FOR(!(ioread8(ioaddr+ChipCmd) & CmdTxOn));
+ if (debug > 2 &&
+ ioread8(ioaddr+ChipCmd) & CmdTxOn)
+ printk(KERN_WARNING "%s: "
+ "rhine_interrupt() Tx engine"
+ "still on.\n", dev->name);
+
+ spin_lock_irq(&rp->lock);
/* find and cleanup dirty tx descriptors */
while (rp->dirty_tx != rp->cur_tx) {
txstatus = le32_to_cpu(rp->tx_ring[entry].tx_status);
@@ -1462,6 +1490,7 @@
txstatus & 0xF);
rp->stats.tx_bytes += rp->tx_skbuff[entry]->len;
rp->stats.tx_packets++;
+ done++;
}
/* Free the original skb. */
if (rp->tx_skbuff_dma[entry]) {
@@ -1470,23 +1499,25 @@
rp->tx_skbuff[entry]->len,
PCI_DMA_TODEVICE);
}
- dev_kfree_skb_irq(rp->tx_skbuff[entry]);
+ dev_kfree_skb_any(rp->tx_skbuff[entry]);
rp->tx_skbuff[entry] = NULL;
entry = (++rp->dirty_tx) % TX_RING_SIZE;
}
+ spin_unlock_irq(&rp->lock);
+
if ((rp->cur_tx - rp->dirty_tx) < TX_QUEUE_LEN - 4)
netif_wake_queue(dev);
- spin_unlock(&rp->lock);
+ return done;
}
/* This routine is logically part of the interrupt handler, but isolated
for clarity and better register allocation. */
-static void rhine_rx(struct net_device *dev)
+static int rhine_rx(struct net_device *dev)
{
struct rhine_private *rp = netdev_priv(dev);
int entry = rp->cur_rx % RX_RING_SIZE;
- int boguscnt = rp->dirty_rx + RX_RING_SIZE - rp->cur_rx;
+ int done = 0;
if (debug > 4) {
printk(KERN_DEBUG "%s: rhine_rx(), entry %d status %8.8x.\n",
@@ -1503,8 +1534,6 @@
if (debug > 4)
printk(KERN_DEBUG "rhine_rx() status is %8.8x.\n",
desc_status);
- if (--boguscnt < 0)
- break;
if ((desc_status & (RxWholePkt | RxErr)) != RxWholePkt) {
if ((desc_status & RxWholePkt) != RxWholePkt) {
printk(KERN_WARNING "%s: Oversized Ethernet "
@@ -1528,9 +1557,7 @@
if (desc_status & 0x0004) rp->stats.rx_frame_errors++;
if (desc_status & 0x0002) {
/* this can also be updated outside the interrupt handler */
- spin_lock(&rp->lock);
rp->stats.rx_crc_errors++;
- spin_unlock(&rp->lock);
}
}
} else {
@@ -1558,6 +1585,7 @@
rp->rx_buf_sz,
PCI_DMA_FROMDEVICE);
} else {
+ int i;
skb = rp->rx_skbuff[entry];
if (skb == NULL) {
printk(KERN_ERR "%s: Inconsistent Rx "
@@ -1566,6 +1594,14 @@
break;
}
rp->rx_skbuff[entry] = NULL;
+
+ /* align the data to the ip header - should be faster than using rx_copybreak */
+ for (i = pkt_len - (pkt_len % 4); i >= 0; i -= 4) {
+ put_unaligned(*((u32 *) (skb->data + i)), (u32 *) (skb->data + i + 2));
+ }
+ skb->data += 2;
+ skb->tail += 2;
+
skb_put(skb, pkt_len);
pci_unmap_single(rp->pdev,
rp->rx_skbuff_dma[entry],
@@ -1573,10 +1609,11 @@
PCI_DMA_FROMDEVICE);
}
skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
+ netif_receive_skb(skb);
dev->last_rx = jiffies;
rp->stats.rx_bytes += pkt_len;
rp->stats.rx_packets++;
+ done++;
}
entry = (++rp->cur_rx) % RX_RING_SIZE;
rp->rx_head_desc = &rp->rx_ring[entry];
@@ -1587,7 +1624,7 @@
struct sk_buff *skb;
entry = rp->dirty_rx % RX_RING_SIZE;
if (rp->rx_skbuff[entry] == NULL) {
- skb = dev_alloc_skb(rp->rx_buf_sz);
+ skb = dev_alloc_skb(rp->rx_buf_sz + 4);
rp->rx_skbuff[entry] = skb;
if (skb == NULL)
break; /* Better luck next round. */
@@ -1600,6 +1637,8 @@
}
rp->rx_ring[entry].rx_status = cpu_to_le32(DescOwn);
}
+
+ return done;
}
/*
@@ -1649,11 +1688,11 @@
}
-static void rhine_error(struct net_device *dev, int intr_status)
+static void rhine_error(struct net_device *dev)
{
struct rhine_private *rp = netdev_priv(dev);
void __iomem *ioaddr = rp->base;
-
+ u32 intr_status = rp->istat;
spin_lock(&rp->lock);
if (intr_status & IntrLinkChange)
@@ -1898,6 +1937,7 @@
/* Disable interrupts by clearing the interrupt mask. */
iowrite16(0x0000, ioaddr + IntrEnable);
+ rp->imask = 0;
/* Stop the chip's Tx and Rx processes. */
iowrite16(CmdStop, ioaddr + ChipCmd);
@@ -1912,6 +1952,9 @@
free_tbufs(dev);
free_ring(dev);
+ writeb(0x80, ioaddr + 0xa1);
+ pci_set_power_state(rp->pdev, 3);
+
return 0;
}
@@ -1941,6 +1984,7 @@
return; /* Nothing to do for non-WOL adapters */
rhine_power_init(dev);
+ netif_poll_disable(dev);
/* Make sure we use pattern 0, 1 and not 4, 5 */
if (rp->quirks & rq6patterns)