zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/scsi/arm/oak.c b/ap/os/linux/linux-3.4.x/drivers/scsi/arm/oak.c
new file mode 100644
index 0000000..d25f944
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/scsi/arm/oak.c
@@ -0,0 +1,227 @@
+/*
+ * Oak Generic NCR5380 driver
+ *
+ * Copyright 1995-2002, Russell King
+ */
+
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+
+#include <asm/ecard.h>
+#include <asm/io.h>
+
+#include "../scsi.h"
+#include <scsi/scsi_host.h>
+
+#define AUTOSENSE
+/*#define PSEUDO_DMA*/
+
+#define OAKSCSI_PUBLIC_RELEASE 1
+
+#define priv(host) ((struct NCR5380_hostdata *)(host)->hostdata)
+#define NCR5380_local_declare() void __iomem *_base
+#define NCR5380_setup(host) _base = priv(host)->base
+
+#define NCR5380_read(reg) readb(_base + ((reg) << 2))
+#define NCR5380_write(reg, value) writeb(value, _base + ((reg) << 2))
+#define NCR5380_intr oakscsi_intr
+#define NCR5380_queue_command oakscsi_queue_command
+#define NCR5380_proc_info oakscsi_proc_info
+
+#define NCR5380_implementation_fields \
+ void __iomem *base
+
+#define BOARD_NORMAL 0
+#define BOARD_NCR53C400 1
+
+#include "../NCR5380.h"
+
+#undef START_DMA_INITIATOR_RECEIVE_REG
+#define START_DMA_INITIATOR_RECEIVE_REG (128 + 7)
+
+const char * oakscsi_info (struct Scsi_Host *spnt)
+{
+ return "";
+}
+
+#define STAT ((128 + 16) << 2)
+#define DATA ((128 + 8) << 2)
+
+static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *addr,
+ int len)
+{
+ void __iomem *base = priv(instance)->base;
+
+printk("writing %p len %d\n",addr, len);
+ if(!len) return -1;
+
+ while(1)
+ {
+ int status;
+ while (((status = readw(base + STAT)) & 0x100)==0);
+ }
+}
+
+static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *addr,
+ int len)
+{
+ void __iomem *base = priv(instance)->base;
+printk("reading %p len %d\n", addr, len);
+ while(len > 0)
+ {
+ unsigned int status, timeout;
+ unsigned long b;
+
+ timeout = 0x01FFFFFF;
+
+ while (((status = readw(base + STAT)) & 0x100)==0)
+ {
+ timeout--;
+ if(status & 0x200 || !timeout)
+ {
+ printk("status = %08X\n", status);
+ return 1;
+ }
+ }
+
+ if(len >= 128)
+ {
+ readsw(base + DATA, addr, 128);
+ addr += 128;
+ len -= 128;
+ }
+ else
+ {
+ b = (unsigned long) readw(base + DATA);
+ *addr ++ = b;
+ len -= 1;
+ if(len)
+ *addr ++ = b>>8;
+ len -= 1;
+ }
+ }
+ return 0;
+}
+
+#undef STAT
+#undef DATA
+
+#include "../NCR5380.c"
+
+static struct scsi_host_template oakscsi_template = {
+ .module = THIS_MODULE,
+ .proc_info = oakscsi_proc_info,
+ .name = "Oak 16-bit SCSI",
+ .info = oakscsi_info,
+ .queuecommand = oakscsi_queue_command,
+ .eh_abort_handler = NCR5380_abort,
+ .eh_bus_reset_handler = NCR5380_bus_reset,
+ .can_queue = 16,
+ .this_id = 7,
+ .sg_tablesize = SG_ALL,
+ .cmd_per_lun = 2,
+ .use_clustering = DISABLE_CLUSTERING,
+ .proc_name = "oakscsi",
+};
+
+static int __devinit
+oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
+{
+ struct Scsi_Host *host;
+ int ret = -ENOMEM;
+
+ ret = ecard_request_resources(ec);
+ if (ret)
+ goto out;
+
+ host = scsi_host_alloc(&oakscsi_template, sizeof(struct NCR5380_hostdata));
+ if (!host) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ priv(host)->base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
+ ecard_resource_len(ec, ECARD_RES_MEMC));
+ if (!priv(host)->base) {
+ ret = -ENOMEM;
+ goto unreg;
+ }
+
+ host->irq = IRQ_NONE;
+ host->n_io_port = 255;
+
+ NCR5380_init(host, 0);
+
+ printk("scsi%d: at port 0x%08lx irqs disabled",
+ host->host_no, host->io_port);
+ printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
+ host->can_queue, host->cmd_per_lun, OAKSCSI_PUBLIC_RELEASE);
+ printk("\nscsi%d:", host->host_no);
+ NCR5380_print_options(host);
+ printk("\n");
+
+ ret = scsi_add_host(host, &ec->dev);
+ if (ret)
+ goto out_unmap;
+
+ scsi_scan_host(host);
+ goto out;
+
+ out_unmap:
+ iounmap(priv(host)->base);
+ unreg:
+ scsi_host_put(host);
+ release:
+ ecard_release_resources(ec);
+ out:
+ return ret;
+}
+
+static void __devexit oakscsi_remove(struct expansion_card *ec)
+{
+ struct Scsi_Host *host = ecard_get_drvdata(ec);
+
+ ecard_set_drvdata(ec, NULL);
+ scsi_remove_host(host);
+
+ NCR5380_exit(host);
+ iounmap(priv(host)->base);
+ scsi_host_put(host);
+ ecard_release_resources(ec);
+}
+
+static const struct ecard_id oakscsi_cids[] = {
+ { MANU_OAK, PROD_OAK_SCSI },
+ { 0xffff, 0xffff }
+};
+
+static struct ecard_driver oakscsi_driver = {
+ .probe = oakscsi_probe,
+ .remove = __devexit_p(oakscsi_remove),
+ .id_table = oakscsi_cids,
+ .drv = {
+ .name = "oakscsi",
+ },
+};
+
+static int __init oakscsi_init(void)
+{
+ return ecard_register_driver(&oakscsi_driver);
+}
+
+static void __exit oakscsi_exit(void)
+{
+ ecard_remove_driver(&oakscsi_driver);
+}
+
+module_init(oakscsi_init);
+module_exit(oakscsi_exit);
+
+MODULE_AUTHOR("Russell King");
+MODULE_DESCRIPTION("Oak SCSI driver");
+MODULE_LICENSE("GPL");
+