From: Kars de Jong <[email protected]>
New driver for the Amiga 4000T built-in NCR53c710 SCSI controller, using the
53c700 SCSI core.
Signed-off-by: Geert Uytterhoeven <[email protected]>
---
drivers/scsi/Kconfig | 14 ++++
drivers/scsi/Makefile | 1
drivers/scsi/a4000t.c | 142 ++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 155 insertions(+), 2 deletions(-)
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1008,7 +1008,7 @@ config SCSI_STEX
config 53C700_BE_BUS
bool
- depends on MVME16x_SCSI || BVME6000_SCSI
+ depends on SCSI_A4000T || MVME16x_SCSI || BVME6000_SCSI
default y
config SCSI_SYM53C8XX_2
@@ -1615,13 +1615,23 @@ config FASTLANE_SCSI
If you have the Phase5 Fastlane Z3 SCSI controller, or plan to use
one in the near future, say Y to this question. Otherwise, say N.
+config SCSI_A4000T
+ tristate "A4000T NCR53c710 SCSI support (EXPERIMENTAL)"
+ depends on AMIGA && SCSI && EXPERIMENTAL
+ select SCSI_SPI_ATTRS
+ help
+ If you have an Amiga 4000T and have SCSI devices connected to the
+ built-in SCSI controller, say Y. Otherwise, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called a4000t.
+
config SCSI_AMIGA7XX
bool "Amiga NCR53c710 SCSI support (EXPERIMENTAL)"
depends on AMIGA && SCSI && EXPERIMENTAL && BROKEN
help
Support for various NCR53c710-based SCSI controllers on the Amiga.
This includes:
- - the builtin SCSI controller on the Amiga 4000T,
- the Amiga 4091 Zorro III SCSI-2 controller,
- the MacroSystem Development's WarpEngine Amiga SCSI-2 controller
(info at
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -37,6 +37,7 @@ obj-$(CONFIG_SCSI_SAS_LIBSAS) += libsas/
obj-$(CONFIG_ISCSI_TCP) += libiscsi.o iscsi_tcp.o
obj-$(CONFIG_INFINIBAND_ISER) += libiscsi.o
+obj-$(CONFIG_SCSI_A4000T) += 53c700.o a4000t.o
obj-$(CONFIG_A3000_SCSI) += a3000.o wd33c93.o
obj-$(CONFIG_A2091_SCSI) += a2091.o wd33c93.o
obj-$(CONFIG_GVP11_SCSI) += gvp11.o wd33c93.o
--- /dev/null
+++ b/drivers/scsi/a4000t.c
@@ -0,0 +1,142 @@
+/*
+ * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
+ * Amiga Technologies A4000T SCSI controller.
+ *
+ * Written 1997 by Alan Hourihane <[email protected]>
+ * plus modifications of the 53c7xx.c driver to support the Amiga.
+ *
+ * Rewritten to use 53c700.c by Kars de Jong <[email protected]>
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/amigaints.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_spi.h>
+
+#include "53c700.h"
+
+MODULE_AUTHOR("Alan Hourihane <[email protected]> / Kars de Jong <[email protected]>");
+MODULE_DESCRIPTION("Amiga A4000T NCR53C710 driver");
+MODULE_LICENSE("GPL");
+
+
+static struct scsi_host_template a4000t_scsi_driver_template = {
+ .name = "A4000T builtin SCSI",
+ .proc_name = "A4000t",
+ .this_id = 7,
+ .module = THIS_MODULE,
+};
+
+static struct platform_device *a4000t_scsi_device;
+
+#define A4000T_SCSI_ADDR 0xdd0040
+
+static int __devinit a4000t_probe(struct device *dev)
+{
+ struct Scsi_Host * host = NULL;
+ struct NCR_700_Host_Parameters *hostdata;
+
+ if (!(MACH_IS_AMIGA && AMIGAHW_PRESENT(A4000_SCSI)))
+ goto out;
+
+ if (!request_mem_region(A4000T_SCSI_ADDR, 0x1000,
+ "A4000T builtin SCSI"))
+ goto out;
+
+ hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
+ if (hostdata == NULL) {
+ printk(KERN_ERR "a4000t-scsi: Failed to allocate host data\n");
+ goto out_release;
+ }
+ memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters));
+
+ /* Fill in the required pieces of hostdata */
+ hostdata->base = (void __iomem *)ZTWO_VADDR(A4000T_SCSI_ADDR);
+ hostdata->clock = 50;
+ hostdata->chip710 = 1;
+ hostdata->dmode_extra = DMODE_FC2;
+ hostdata->dcntl_extra = EA_710;
+
+ /* and register the chip */
+ host = NCR_700_detect(&a4000t_scsi_driver_template, hostdata, dev);
+ if (!host) {
+ printk(KERN_ERR "a4000t-scsi: No host detected; "
+ "board configuration problem?\n");
+ goto out_free;
+ }
+
+ host->this_id = 7;
+ host->base = A4000T_SCSI_ADDR;
+ host->irq = IRQ_AMIGA_PORTS;
+
+ if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "a4000t-scsi",
+ host)) {
+ printk(KERN_ERR "a4000t-scsi: request_irq failed\n");
+ goto out_put_host;
+ }
+
+ scsi_scan_host(host);
+
+ return 0;
+
+ out_put_host:
+ scsi_host_put(host);
+ out_free:
+ kfree(hostdata);
+ out_release:
+ release_mem_region(A4000T_SCSI_ADDR, 0x1000);
+ out:
+ return -ENODEV;
+}
+
+static __devexit int a4000t_device_remove(struct device *dev)
+{
+ struct Scsi_Host *host = dev_to_shost(dev);
+ struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
+
+ scsi_remove_host(host);
+
+ NCR_700_release(host);
+ kfree(hostdata);
+ free_irq(host->irq, host);
+ release_mem_region(A4000T_SCSI_ADDR, 0x1000);
+
+ return 0;
+}
+
+static struct device_driver a4000t_scsi_driver = {
+ .name = "a4000t-scsi",
+ .bus = &platform_bus_type,
+ .probe = a4000t_probe,
+ .remove = __devexit_p(a4000t_device_remove),
+};
+
+static int __init a4000t_scsi_init(void)
+{
+ int err;
+
+ err = driver_register(&a4000t_scsi_driver);
+ if (err)
+ return err;
+
+ a4000t_scsi_device = platform_device_register_simple("a4000t-scsi",
+ -1, NULL, 0);
+ if (IS_ERR(a4000t_scsi_device)) {
+ driver_unregister(&a4000t_scsi_driver);
+ return PTR_ERR(a4000t_scsi_device);
+ }
+
+ return err;
+}
+
+static void __exit a4000t_scsi_exit(void)
+{
+ platform_device_unregister(a4000t_scsi_device);
+ driver_unregister(&a4000t_scsi_driver);
+}
+
+module_init(a4000t_scsi_init);
+module_exit(a4000t_scsi_exit);
--
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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