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Commit 99ddcf1a authored by Richard Hirst's avatar Richard Hirst Committed by James Bottomley
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Add parisc Zalon SCSI card 

The Zalon card is a GSC 53c720 based card.  This driver adopts
the ncr53c8xx driver for the purpose.
parent be7705e9
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Showing with 593 additions and 58 deletions
drivers/scsi/Kconfig
View file @ 99ddcf1a
......@@ -964,6 +964,16 @@ config SCSI_SYM53C8XX_2
Please read <file:drivers/scsi/sym53c8xx_2/Documentation.txt> for more
information.
config SCSI_ZALON
tristate "Zalon SCSI support"
depends on GSC && SCSI
help
The Zalon is a GSC/HSC bus interface chip that sits between the
PA-RISC processor and the NCR 53c720 SCSI controller on C100,
C110, J200, J210 and some D, K & R-class machines. It's also
used on the add-in Bluefish, Barracuda & Shrike SCSI cards.
Say Y here if you have one of these machines or cards.
config SCSI_SYM53C8XX_DMA_ADDRESSING_MODE
int "DMA addressing mode"
depends on SCSI_SYM53C8XX_2
......@@ -1068,7 +1078,7 @@ config SCSI_SYM53C8XX
config SCSI_NCR53C8XX_DEFAULT_TAGS
int "default tagged command queue depth"
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX)
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON)
default "8"
---help---
"Tagged command queuing" is a feature of SCSI-2 which improves
......@@ -1094,7 +1104,7 @@ config SCSI_NCR53C8XX_DEFAULT_TAGS
config SCSI_NCR53C8XX_MAX_TAGS
int "maximum number of queued commands"
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX)
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON)
default "32"
---help---
This option allows you to specify the maximum number of commands
......@@ -1111,7 +1121,7 @@ config SCSI_NCR53C8XX_MAX_TAGS
config SCSI_NCR53C8XX_SYNC
int "synchronous transfers frequency in MHz"
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX)
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON)
default "20"
---help---
The SCSI Parallel Interface-2 Standard defines 5 classes of transfer
......@@ -1145,7 +1155,7 @@ config SCSI_NCR53C8XX_SYNC
config SCSI_NCR53C8XX_PROFILE
bool "enable profiling"
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX)
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON)
help
This option allows you to enable profiling information gathering.
These statistics are not very accurate due to the low frequency
......@@ -1156,7 +1166,7 @@ config SCSI_NCR53C8XX_PROFILE
config SCSI_NCR53C8XX_IOMAPPED
bool "use normal IO"
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX)
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX) && !SCSI_ZALON
help
If you say Y here, the driver will use normal IO, as opposed to
memory mapped IO. Memory mapped IO has less latency than normal IO
......@@ -1181,7 +1191,7 @@ config SCSI_NCR53C8XX_PQS_PDS
config SCSI_NCR53C8XX_NO_DISCONNECT
bool "not allow targets to disconnect"
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX) && SCSI_NCR53C8XX_DEFAULT_TAGS=0
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON) && SCSI_NCR53C8XX_DEFAULT_TAGS=0
help
This option is only provided for safety if you suspect some SCSI
device of yours to not support properly the target-disconnect
......@@ -1191,7 +1201,7 @@ config SCSI_NCR53C8XX_NO_DISCONNECT
config SCSI_NCR53C8XX_SYMBIOS_COMPAT
bool "assume boards are SYMBIOS compatible (EXPERIMENTAL)"
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX) && EXPERIMENTAL
depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON) && EXPERIMENTAL
---help---
This option allows you to enable some features depending on GPIO
wiring. These General Purpose Input/Output pins can be used for
......
drivers/scsi/Makefile
View file @ 99ddcf1a
......@@ -84,6 +84,7 @@ obj-$(CONFIG_SCSI_NCR53C7xx) += 53c7,8xx.o
obj-$(CONFIG_SCSI_SYM53C8XX_2) += sym53c8xx_2/
obj-$(CONFIG_SCSI_SYM53C8XX) += sym53c8xx.o
obj-$(CONFIG_SCSI_NCR53C8XX) += ncr53c8xx.o
obj-$(CONFIG_SCSI_ZALON) += zalon7xx.o
obj-$(CONFIG_SCSI_EATA_DMA) += eata_dma.o
obj-$(CONFIG_SCSI_EATA_PIO) += eata_pio.o
obj-$(CONFIG_SCSI_7000FASST) += wd7000.o
......@@ -135,6 +136,7 @@ sd_mod-objs := sd.o
sr_mod-objs := sr.o sr_ioctl.o sr_vendor.o
initio-objs := ini9100u.o i91uscsi.o
a100u2w-objs := inia100.o i60uscsi.o
zalon7xx-objs := zalon.o ncr53c8xx.o
cpqfc-objs := cpqfcTSinit.o cpqfcTScontrol.o cpqfcTSi2c.o \
cpqfcTSworker.o cpqfcTStrigger.o
......
drivers/scsi/ncr53c8xx.c
View file @ 99ddcf1a
This diff is collapsed.
drivers/scsi/sym53c8xx_defs.h
View file @ 99ddcf1a
......@@ -51,6 +51,13 @@
** NVRAM detection and reading.
** Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
**
** Added support for MIPS big endian systems.
** Carsten Langgaard, carstenl@mips.com
** Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
**
** Added support for HP PARISC big endian systems.
** Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
**
*******************************************************************************
*/
......@@ -78,8 +85,10 @@
/*
* No more an option, enabled by default.
*/
#ifndef CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
#define CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
#ifndef ENABLE_SCSI_ZALON
# ifndef CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
# define CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
# endif
#endif
/*
......@@ -181,6 +190,8 @@
#endif
#elif defined(__sparc__)
#undef SCSI_NCR_IOMAPPED
#elif defined(__hppa__) && defined(ENABLE_SCSI_ZALON)
#undef SCSI_NCR_IOMAPPED
#endif
/*
......@@ -379,16 +390,24 @@
#define readb_raw readb
#define writeb_raw writeb
#if defined(__hppa__)
#define readw_l2b(a) le16_to_cpu(readw(a))
#define readl_l2b(a) le32_to_cpu(readl(a))
#define writew_b2l(v,a) writew(cpu_to_le16(v),a)
#define writel_b2l(v,a) writel(cpu_to_le32(v),a)
#else /* Other bid-endian */
#if defined(SCSI_NCR_BIG_ENDIAN)
#define readw_l2b __raw_readw
#define readl_l2b __raw_readl
#define writew_b2l __raw_writew
#define writel_b2l __raw_writel
#define readw_raw __raw_readw
#define readl_raw(a) __raw_readl((unsigned long)(a))
#define writew_raw __raw_writew
#define writel_raw(v,a) __raw_writel(v,(unsigned long)(a))
#else /* Other big-endian */
#define readw_l2b readw
#define readl_l2b readl
#define writew_b2l writew
#define writel_b2l writel
#define readw_raw readw
#define readl_raw readl
#define writew_raw writew
#define writel_raw writel
#endif
#else /* little endian */
......@@ -417,9 +436,11 @@
#endif
#endif
#if !defined(__hppa__) && !defined(__mips__)
#ifdef SCSI_NCR_BIG_ENDIAN
#error "The NCR in BIG ENDIAN addressing mode is not (yet) supported"
#endif
#endif
/*
......@@ -572,10 +593,20 @@
#else
#ifdef ENABLE_SCSI_ZALON
/* Only 8 or 32 bit transfers allowed */
#define INW_OFF(o) (readb((char *)np->reg + ncr_offw(o)) << 8 | readb((char *)np->reg + ncr_offw(o) + 1))
#else
#define INW_OFF(o) readw_raw((char *)np->reg + ncr_offw(o))
#endif
#define INL_OFF(o) readl_raw((char *)np->reg + (o))
#ifdef ENABLE_SCSI_ZALON
/* Only 8 or 32 bit transfers allowed */
#define OUTW_OFF(o, val) do { writeb((char)((val) >> 8), (char *)np->reg + ncr_offw(o)); writeb((char)(val), (char *)np->reg + ncr_offw(o) + 1); } while (0)
#else
#define OUTW_OFF(o, val) writew_raw((val), (char *)np->reg + ncr_offw(o))
#endif
#define OUTL_OFF(o, val) writel_raw((val), (char *)np->reg + (o))
#endif
......@@ -623,6 +654,10 @@
** NCR53C8XX Device Ids
*/
#ifndef PSEUDO_ZALON_720_ID
#define PSEUDO_ZALON_720_ID 0x5a00
#endif
#ifndef PCI_DEVICE_ID_NCR_53C810
#define PCI_DEVICE_ID_NCR_53C810 1
#endif
......@@ -726,6 +761,9 @@ typedef struct {
#define FE_DAC (1<<24) /* Support DAC cycles (64 bit addressing) */
#define FE_ISTAT1 (1<<25) /* Have ISTAT1, MBOX0, MBOX1 registers */
#define FE_DAC_IN_USE (1<<26) /* Platform does DAC cycles */
#define FE_EHP (1<<27) /* 720: Even host parity */
#define FE_MUX (1<<28) /* 720: Multiplexed bus */
#define FE_EA (1<<29) /* 720: Enable Ack */
#define FE_CACHE_SET (FE_ERL|FE_CLSE|FE_WRIE|FE_ERMP)
#define FE_SCSI_SET (FE_WIDE|FE_ULTRA|FE_ULTRA2|FE_DBLR|FE_QUAD|F_CLK80)
......@@ -747,6 +785,9 @@ typedef struct {
#define SCSI_NCR_CHIP_TABLE \
{ \
{PSEUDO_ZALON_720_ID, 0x0f, "720", 3, 8, 4, \
FE_WIDE|FE_DIFF|FE_EHP|FE_MUX|FE_EA} \
, \
{PCI_DEVICE_ID_NCR_53C810, 0x0f, "810", 4, 8, 4, \
FE_ERL} \
, \
......@@ -819,6 +860,7 @@ typedef struct {
*/
#define SCSI_NCR_CHIP_IDS \
{ \
PSEUDO_ZALON_720_ID, \
PCI_DEVICE_ID_NCR_53C810, \
PCI_DEVICE_ID_NCR_53C815, \
PCI_DEVICE_ID_NCR_53C820, \
......@@ -1170,6 +1212,7 @@ struct ncr_reg {
/*17*/ u_char nc_mbox1; /* 896 and later cores only */
/*18*/ u_char nc_ctest0;
#define EHP 0x04 /* 720 even host parity */
/*19*/ u_char nc_ctest1;
/*1a*/ u_char nc_ctest2;
......@@ -1187,6 +1230,7 @@ struct ncr_reg {
/*20*/ u_char nc_dfifo;
/*21*/ u_char nc_ctest4;
#define MUX 0x80 /* 720 host bus multiplex mode */
#define BDIS 0x80 /* mod: burst disable */
#define MPEE 0x08 /* mod: master parity error enable */
......@@ -1219,6 +1263,7 @@ struct ncr_reg {
#define CLSE 0x80 /* mod: cache line size enable */
#define PFF 0x40 /* cmd: pre-fetch flush */
#define PFEN 0x20 /* mod: pre-fetch enable */
#define EA 0x20 /* mod: 720 enable-ack */
#define SSM 0x10 /* mod: single step mode */
#define IRQM 0x08 /* mod: irq mode (1 = totem pole !) */
#define STD 0x04 /* cmd: start dma mode */
......@@ -1261,6 +1306,7 @@ struct ncr_reg {
/*4e*/ u_char nc_stest2;
#define ROF 0x40 /* reset scsi offset (after gross error!) */
#define DIF 0x20 /* 720 SCSI differential mode */
#define EXT 0x02 /* extended filtering */
/*4f*/ u_char nc_stest3;
......@@ -1439,12 +1485,22 @@ struct scr_tblmove {
#define SCR_SEL_TBL 0x42000000
#define SCR_SEL_TBL_ATN 0x43000000
#ifdef SCSI_NCR_BIG_ENDIAN
struct scr_tblsel {
u_char sel_scntl3;
u_char sel_id;
u_char sel_sxfer;
u_char sel_scntl4;
};
#else
struct scr_tblsel {
u_char sel_scntl4;
u_char sel_sxfer;
u_char sel_id;
u_char sel_scntl3;
};
#endif
#define SCR_JMP_REL 0x04000000
#define SCR_ID(id) (((u_int32)(id)) << 16)
......
drivers/scsi/zalon.c 0 → 100644
View file @ 99ddcf1a
/*
* Zalon 53c7xx device driver.
* By Richard Hirst (rhirst@linuxcare.com)
*/
#include <linux/init.h>
#include <linux/types.h>
#include <linux/stat.h>
#include <linux/mm.h>
#include <linux/blk.h>
#include <linux/sched.h>
#include <linux/version.h>
#include <linux/config.h>
#include <linux/module.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/irq.h>
#include <asm/hardware.h>
#include <asm/delay.h>
#include <asm/io.h>
#include "../parisc/gsc.h"
#include "scsi.h"
#include "hosts.h"
/*
* ** Define the BSD style u_int32 and u_int64 type.
* ** Are in fact u_int32_t and u_int64_t :-)
* */
typedef u32 u_int32;
typedef u64 u_int64;
typedef u_long vm_offset_t;
#include "zalon.h"
/* hosts_* are kluges to pass info between the zalon7xx_detected()
** and the register_parisc_driver() callbacks.
*/
static Scsi_Host_Template *hosts_tptr;
static int hosts_used=0;
static int zalon_id = 0;
extern int zalon_attach(Scsi_Host_Template *tpnt,
unsigned long base_addr,
struct parisc_device *dev,
int irq_vector,
int unit
);
#if 0
/* FIXME:
* Is this function dead code? or is someone planning on using it in the
* future. The clock = (int) pdc_result[16] does not look correct to
* me ... I think it should be iodc_data[16]. Since this cause a compile
* error with the new encapsulated PDC, I'm not compiling in this function.
* - RB
*/
/* poke SCSI clock out of iodc data */
static u8 iodc_data[32] __attribute__ ((aligned (64)));
static unsigned long pdc_result[32] __attribute__ ((aligned (16))) ={0,0,0,0};
static int
lasi_scsi_clock(void * hpa, int defaultclock)
{
int clock, status;
status = pdc_iodc_read(&pdc_result, hpa, 0, &iodc_data, 32 );
if (status == PDC_RET_OK) {
clock = (int) pdc_result[16];
} else {
printk(KERN_WARNING "%s: pdc_iodc_read returned %d\n", __FUNCTION__, status);
clock = defaultclock;
}
printk(KERN_DEBUG "%s: SCSI clock %d\n", __FUNCTION__, clock);
return clock;
}
#endif
static int __init
zalon_scsi_callback(struct parisc_device *dev)
{
struct gsc_irq gsc_irq;
u32 zalon_vers;
int irq;
unsigned long zalon = dev->hpa;
__raw_writel(CMD_RESET, zalon + IO_MODULE_IO_COMMAND);
while (!(__raw_readl(zalon + IO_MODULE_IO_STATUS) & IOSTATUS_RY))
;
__raw_writel(IOIIDATA_MINT5EN | IOIIDATA_PACKEN | IOIIDATA_PREFETCHEN,
zalon + IO_MODULE_II_CDATA);
/* XXX: Save the Zalon version for bug workarounds? */
zalon_vers = __raw_readl(dev->hpa + IO_MODULE_II_CDATA) & 0x07000000;
zalon_vers >>= 24;
/* Setup the interrupts first.
** Later on request_irq() will register the handler.
*/
irq = gsc_alloc_irq(&gsc_irq);
printk("%s: Zalon vers field is 0x%x, IRQ %d\n", __FUNCTION__,
zalon_vers, irq);
__raw_writel(gsc_irq.txn_addr | gsc_irq.txn_data, dev->hpa + IO_MODULE_EIM);
if ( zalon_vers == 0)
printk(KERN_WARNING "%s: Zalon 1.1 or earlier\n", __FUNCTION__);
/*
** zalon_attach: returns -1 on failure, 0 on success
*/
hosts_used = zalon_attach(hosts_tptr, dev->hpa + GSC_SCSI_ZALON_OFFSET,
dev, irq, zalon_id);
if (hosts_used == 0)
zalon_id++;
hosts_used = (hosts_used == 0);
return (hosts_used == 0);
}
static struct parisc_device_id zalon_tbl[] = {
{ HPHW_A_DMA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00089 },
{ 0, }
};
MODULE_DEVICE_TABLE(parisc, zalon_tbl);
static struct parisc_driver zalon_driver = {
name: "GSC SCSI (Zalon)",
id_table: zalon_tbl,
probe: zalon_scsi_callback,
};
int zalon7xx_detect(Scsi_Host_Template *tpnt)
{
/* "pass" the parameter to the callback functions */
hosts_tptr = tpnt;
hosts_used = 0;
/* claim all zalon cards. */
register_parisc_driver(&zalon_driver);
/* Check if any callbacks actually found/claimed anything. */
return (hosts_used != 0);
}
#ifdef MODULE
extern int ncr53c8xx_release(struct Scsi_Host *host);
int zalon7xx_release(struct Scsi_Host *host)
{
ncr53c8xx_release(host);
unregister_parisc_driver(&zalon_driver);
return 1;
}
#endif
drivers/scsi/zalon.h 0 → 100644
View file @ 99ddcf1a
#ifndef ZALON7XX_H
#define ZALON7XX_H
#include <linux/types.h>
#include "sym53c8xx_defs.h"
extern int zalon7xx_detect(Scsi_Host_Template *);
#include <scsi/scsicam.h>
extern struct proc_dir_entry proc_scsi_zalon7xx;
/* borrowed from drivers/scsi/ncr53c8xx.h */
int zalon7xx_detect(Scsi_Host_Template *tpnt);
const char *ncr53c8xx_info(struct Scsi_Host *host);
int ncr53c8xx_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
#ifdef MODULE
int zalon7xx_release(struct Scsi_Host *);
#else
#define zalon7xx_release NULL
#endif
#define SCSI_ZALON { proc_name: "zalon720", \
detect: zalon7xx_detect, \
release: zalon7xx_release, \
info: ncr53c8xx_info, \
queuecommand: ncr53c8xx_queue_command,\
bios_param: scsicam_bios_param, \
can_queue: SCSI_NCR_CAN_QUEUE, \
this_id: 7, \
sg_tablesize: SCSI_NCR_SG_TABLESIZE, \
cmd_per_lun: SCSI_NCR_CMD_PER_LUN, \
use_clustering: DISABLE_CLUSTERING}
#define GSC_SCSI_ZALON_OFFSET 0x800
#define IO_MODULE_EIM (1*4)
#define IO_MODULE_DC_ADATA (2*4)
#define IO_MODULE_II_CDATA (3*4)
#define IO_MODULE_IO_COMMAND (12*4)
#define IO_MODULE_IO_STATUS (13*4)
#define IOSTATUS_RY 0x40
#define IOSTATUS_FE 0x80
#define IOIIDATA_SMINT5L 0x40000000
#define IOIIDATA_MINT5EN 0x20000000
#define IOIIDATA_PACKEN 0x10000000
#define IOIIDATA_PREFETCHEN 0x08000000
#define IOIIDATA_IOII 0x00000020
#define CMD_RESET 5
#endif /* ZALON7XX_H */
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