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No need to keep the old driver now 

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9824 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Florian Fainelli 2007-12-22 11:11:01 +00:00
parent 407d7846f4
commit 315352ef91
5 changed files with 0 additions and 1038 deletions
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3
target/linux/adm5120/files/drivers/block/rb1xx/Makefile
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@ -1,3 +0,0 @@
## Makefile for the RB1xx CF port
obj-$(CONFIG_BLK_DEV_CF_MIPS) += rb153-cf.o
rb153-cf-objs := bdev.o ata.o

508
target/linux/adm5120/files/drivers/block/rb1xx/ata.c
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@ -1,508 +0,0 @@
/* 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> /* 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>
#include <asm/io.h>
#include <asm/gpio.h>
#include <gpio.h>
#include <adm5120_defs.h>
#include <adm5120_irq.h>
#include <adm5120_switch.h>
#include <adm5120_intc.h>
#include <adm5120_mpmc.h>
#include <adm5120_cf.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;
#define DBUF32 ((volatile u32 *)((unsigned long)dev->baddr | ATA_DBUF_OFFSET))
#define INTC_WRITE(reg, val) __raw_writel((val), \
(void __iomem *)(KSEG1ADDR(ADM5120_INTC_BASE) + reg))
#define INTC_READ(reg) __raw_readl(\
(void __iomem *)(KSEG1ADDR(ADM5120_INTC_BASE) + reg))
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 cfrdy(struct cf_mips_dev *dev)
{
return gpio_get_value(12);
}
static inline void prepare_cf_irq(struct cf_mips_dev *dev)
{
/* interrupt on cf ready (not busy) */
INTC_WRITE(INTC_REG_INT_LEVEL, INTC_READ(INTC_REG_INT_LEVEL) | ADM5120_CF_IRQ_LEVEL_BIT);
/* FIXME: how to 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
*/
/* FIXME: enabling of EXTIO will be done by BIOS in future */
unsigned cmd = EXTIO_CS0_INT0_EN;
int i;
/* on RB100 WAIT is LOW all the time => read will hang */
if (gpio_get_value(8))
cmd |= EXTIO_WAIT_EN;
SW_WRITE_REG(GPIO_CONF2, cmd);
SW_WRITE_REG(GPIO_CONF0, (SW_READ_REG(GPIO_CONF0) & ~(1 << (16 + ADM5120_CF_GPIO_NUM))));
/* FIXME: timings will be set by BIOS in future - remove this */
MPMC_WRITE_REG(SC2, 0x88);
MPMC_WRITE_REG(WEN2, 0x02);
MPMC_WRITE_REG(OEN2, 0x03);
MPMC_WRITE_REG(RD2, 0x1a);
MPMC_WRITE_REG(PG2, 0x1d);
MPMC_WRITE_REG(WR2, 0x14);
MPMC_WRITE_REG(TN2, 0x09);
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)
{
/* 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;
if (!cfrdy(dev))
return; // false interrupt (only for ADM5120)
INTC_WRITE(INTC_REG_INT_LEVEL, (INTC_READ(INTC_REG_INT_LEVEL) & (~ADM5120_CF_IRQ_LEVEL_BIT)));
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*/

143
target/linux/adm5120/files/drivers/block/rb1xx/ata.h
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@ -1,143 +0,0 @@
/* 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.
*/
#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

341
target/linux/adm5120/files/drivers/block/rb1xx/bdev.c
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@ -1,341 +0,0 @@
/* 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/mach-adm5120/adm5120_cf.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 *)kzalloc(sizeof(struct cf_mips_dev),GFP_KERNEL);
if (!dev)
goto out_err;
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(KERN_INFO "cf-mips: init done\n");
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");
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 = "rb153-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);
}

43
target/linux/adm5120/patches-2.6.23/120-cf.patch
View File

@ -1,43 +0,0 @@
Index: linux-2.6.23/drivers/block/Kconfig
===================================================================
--- linux-2.6.23/drivers/block/Kconfig 2007-10-09 22:31:38.000000000 +0200
+++ linux-2.6.23.new/drivers/block/Kconfig 2007-10-22 18:07:49.000000000 +0200
@@ -65,6 +65,14 @@
To compile this driver as a module, choose M here: the
module will be called z2ram.
+config BLK_DEV_CF_MIPS
+ tristate "CF slot of RB153 board"
+ depends on MIPS_ADM5120
+ default y
+ help
+ The Routerboard 153 has a CF slot on it. Enable the special block
+ device driver for it.
+
config BLK_DEV_XD
tristate "XT hard disk support"
depends on ISA && ISA_DMA_API
Index: linux-2.6.23/drivers/block/Makefile
===================================================================
--- linux-2.6.23/drivers/block/Makefile 2007-10-09 22:31:38.000000000 +0200
+++ linux-2.6.23.new/drivers/block/Makefile.new 2007-10-22 18:08:15.000000000 +0200
@@ -7,6 +7,7 @@
obj-$(CONFIG_MAC_FLOPPY) += swim3.o
obj-$(CONFIG_BLK_DEV_FD) += floppy.o
+obj-$(CONFIG_BLK_DEV_CF_MIPS) += rb1xx/
obj-$(CONFIG_AMIGA_FLOPPY) += amiflop.o
obj-$(CONFIG_PS3_DISK) += ps3disk.o
obj-$(CONFIG_ATARI_FLOPPY) += ataflop.o
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 722e12e..60af038 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -526,6 +526,7 @@ exit:
kobject_uevent(&p->kobj, KOBJ_ADD);
}
}
+EXPORT_SYMBOL(register_disk);
int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
{