1 files changed, 92 insertions, 0 deletions

diff --git a/firmware/target/arm/pp/ata-target.h b/firmware/target/arm/pp/ata-target.h
new file mode 100644
index 0000000000..616c451579
--- /dev/null
+++ b/firmware/target/arm/pp/ata-target.h
@@ -0,0 +1,92 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef ATA_TARGET_H
+#define ATA_TARGET_H
+
+#include "config.h"
+
+#ifdef CPU_PP
+
+#ifdef HAVE_BOOTLOADER_USB_MODE
+#define ATA_DRIVER_CLOSE
+#endif
+
+/* primary channel */
+#define ATA_DATA        (*((volatile unsigned short*)(IDE_BASE + 0x1e0)))
+#define ATA_ERROR       (*((volatile unsigned char*)(IDE_BASE + 0x1e4)))
+#define ATA_NSECTOR     (*((volatile unsigned char*)(IDE_BASE + 0x1e8)))
+#define ATA_SECTOR      (*((volatile unsigned char*)(IDE_BASE + 0x1ec)))
+#define ATA_LCYL        (*((volatile unsigned char*)(IDE_BASE + 0x1f0)))
+#define ATA_HCYL        (*((volatile unsigned char*)(IDE_BASE + 0x1f4)))
+#define ATA_SELECT      (*((volatile unsigned char*)(IDE_BASE + 0x1f8)))
+#define ATA_COMMAND     (*((volatile unsigned char*)(IDE_BASE + 0x1fc)))
+#define ATA_CONTROL     (*((volatile unsigned char*)(IDE_BASE + 0x3f8)))
+
+#if (CONFIG_CPU == PP5002)
+
+#define ATA_OUT8(reg,val) do { reg = (val); \
+                              while (!(IDE_CFG_STATUS & 0x40)); \
+                          } while (0)
+
+/* Plain C reading and writing. See comment in ata-as-arm.S */
+
+#elif defined CPU_PP502x
+
+/* asm optimized reading and writing */
+#define ATA_OPTIMIZED_READING
+#define ATA_OPTIMIZED_WRITING
+
+#endif /* CONFIG_CPU */
+
+#endif
+
+#ifdef HAVE_ATA_DMA
+
+/* IDE DMA controller registers */
+#define IDE_DMA_CONTROL (*(volatile unsigned long *)(0xc3000400))
+#define IDE_DMA_LENGTH  (*(volatile unsigned long *)(0xc3000408))
+#define IDE_DMA_ADDR    (*(volatile unsigned long *)(0xc300040C))
+
+/* Maximum multi-word DMA mode supported by the controller */
+#define ATA_MAX_MWDMA 2
+
+#ifndef BOOTLOADER    
+/* The PP5020 supports UDMA 4, but it needs cpu boosting and only
+ * improves performance by ~10% with a stock disk.
+ * UDMA 2 is stable at 30 Mhz.
+ * UDMA 1 is stable at 24 Mhz.
+ */
+#if CPUFREQ_NORMAL >= 30000000
+#define ATA_MAX_UDMA 2
+#elif CPUFREQ_NORMAL >= 24000000
+#define ATA_MAX_UDMA 1
+#else
+#error "CPU speeds under 24Mhz have not been tested with DMA"
+#endif
+#else
+/* The bootloader runs at 24 Mhz and needs a slower mode */
+#define ATA_MAX_UDMA 1
+#endif
+
+#endif /* HAVE_ATA_DMA */
+
+#endif /* ATA_TARGET_H */