From 0b6198f8a859700e3816254222e31466014ea553 Mon Sep 17 00:00:00 2001
From: Amaury Pouly <amaury.pouly@gmail.com>
Date: Tue, 18 Jun 2013 16:39:11 +0200
Subject: imx233: add basic ATA driver

The current driver only works in PIO mode.

Change-Id: I1cf2eaedcce0172a254c3bab0e1257886226d3a0
---
 firmware/target/arm/imx233/ata-target.h | 78 +++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 firmware/target/arm/imx233/ata-target.h

(limited to 'firmware/target/arm/imx233/ata-target.h')

diff --git a/firmware/target/arm/imx233/ata-target.h b/firmware/target/arm/imx233/ata-target.h
new file mode 100644
index 0000000000..a95ea03247
--- /dev/null
+++ b/firmware/target/arm/imx233/ata-target.h
@@ -0,0 +1,78 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2013 Amaury Pouly
+ *
+ * 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 BOOTLOADER
+#define ATA_DRIVER_CLOSE
+#endif
+
+#ifdef HAVE_ATA_DMA
+/* FIXME does this chips does MWDMA ? */
+#define ATA_MAX_MWDMA   2
+#define ATA_MAX_UDMA    4
+#endif
+
+uint8_t imx233_ata_inb(unsigned reg);
+uint16_t imx233_ata_inw(unsigned reg);
+void imx233_ata_outb(unsigned reg, uint8_t v);
+void imx233_ata_outw(unsigned reg, uint16_t v);
+
+#define IMX233_ATA_REG(cs,addr)     ((cs) << 3 | (addr))
+#define IMX233_ATA_REG_CS(reg)      ((reg) >> 3)
+#define IMX233_ATA_REG_ADDR(reg)    ((reg) & 0x7)
+/* use register address (see ATA spec) */
+#define ATA_DATA        IMX233_ATA_REG(0, 0)
+#define ATA_ERROR       IMX233_ATA_REG(0, 1)
+#define ATA_NSECTOR     IMX233_ATA_REG(0, 2)
+#define ATA_SECTOR      IMX233_ATA_REG(0, 3)
+#define ATA_LCYL        IMX233_ATA_REG(0, 4)
+#define ATA_HCYL        IMX233_ATA_REG(0, 5)
+#define ATA_SELECT      IMX233_ATA_REG(0, 6)
+#define ATA_COMMAND     IMX233_ATA_REG(0, 7)
+#define ATA_CONTROL     IMX233_ATA_REG(1, 6)
+
+/* keep consistent with definition of IMX233_ATA_REG */
+#define ATA_OUT8(reg, data) imx233_ata_outb(reg, data)
+#define ATA_OUT16(reg, data) imx233_ata_outw(reg, data)
+#define ATA_IN8(reg) imx233_ata_inb(reg)
+#define ATA_IN16(reg) imx233_ata_inw(reg)
+
+#define ATA_SET_PIO_TIMING
+
+#define ATA_TARGET_POLLING
+
+void ata_set_pio_timings(int mode);
+void ata_reset(void);
+void ata_enable(bool on);
+bool ata_is_coldstart(void);
+#ifdef HAVE_ATA_DMA
+void ata_dma_set_mode(unsigned char mode);
+bool ata_dma_setup(void *addr, unsigned long bytes, bool write);
+bool ata_dma_finish(void);
+#endif
+int ata_wait_for_bsy(void);
+int ata_wait_for_rdy(void);
+void ata_device_init(void);
+
+#endif /* ATA_TARGET_H */
-- 
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