[U-Boot] [PATCH V3 1/4] ide: add configuration CONFIG_IDE_SWAP_IO
Albert Aribaud
albert.aribaud at free.fr
Thu Jul 8 20:40:41 CEST 2010
Signed-off-by: Albert Aribaud <albert.aribaud at free.fr>
---
This patch set introduces CONFIG_IDE_SWAP_IO as suggested by
Wolfgang Denk, adds orion5x support to cmd_ide.c and adds IDE
support to edminiv2.
Patchset history:
V1: Initial 4-patch set -- not cleanly submitted (does
not appear on gmane for instance) and contained some
unrelated changes.
V2: Slimmed down to 3 patches and removed unrelated
changes.
V3: Back to 4 patches (cmd_ide improvement, driver addition,
cmd_ide support for orion, edminiv2 support for sata);
made initialization code reuseable as a block driver ;
moved to C structures; commented some constants.
arch/powerpc/include/asm/config.h | 3 +++
common/cmd_ide.c | 18 +++++++++---------
doc/README.PXA_CF | 8 ++++++++
include/configs/ap325rxa.h | 1 +
include/configs/ms7720se.h | 1 +
include/configs/r2dplus.h | 1 +
include/configs/r7780mp.h | 1 +
7 files changed, 24 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/config.h b/arch/powerpc/include/asm/config.h
index fc3facb..371989d 100644
--- a/arch/powerpc/include/asm/config.h
+++ b/arch/powerpc/include/asm/config.h
@@ -76,4 +76,7 @@
/* Relocation to SDRAM works on all PPC boards */
#define CONFIG_RELOC_FIXUP_WORKS
+/* All PPC boards must swap IDE bytes */
+#define CONFIG_IDE_SWAP_IO
+
#endif /* _ASM_CONFIG_H_ */
diff --git a/common/cmd_ide.c b/common/cmd_ide.c
index d486697..9292a5b 100644
--- a/common/cmd_ide.c
+++ b/common/cmd_ide.c
@@ -853,7 +853,7 @@ input_swap_data(int dev, ulong *sect_buf, int words)
#endif /* __LITTLE_ENDIAN || CONFIG_AU1X00 */
-#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) || defined(CONFIG_SH)
+#if defined(CONFIG_IDE_SWAP_IO)
static void
output_data(int dev, ulong *sect_buf, int words)
{
@@ -897,15 +897,15 @@ output_data(int dev, ulong *sect_buf, int words)
}
#endif
}
-#else /* ! __PPC__ */
+#else /* ! CONFIG_IDE_SWAP_IO */
static void
output_data(int dev, ulong *sect_buf, int words)
{
outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words<<1);
}
-#endif /* __PPC__ */
+#endif /* CONFIG_IDE_SWAP_IO */
-#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) || defined(CONFIG_SH)
+#if defined(CONFIG_IDE_SWAP_IO)
static void
input_data(int dev, ulong *sect_buf, int words)
{
@@ -955,14 +955,14 @@ input_data(int dev, ulong *sect_buf, int words)
}
#endif
}
-#else /* ! __PPC__ */
+#else /* ! CONFIG_IDE_SWAP_IO */
static void
input_data(int dev, ulong *sect_buf, int words)
{
insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words << 1);
}
-#endif /* __PPC__ */
+#endif /* CONFIG_IDE_SWAP_IO */
/* -------------------------------------------------------------------------
*/
@@ -1579,7 +1579,7 @@ int ide_device_present(int dev)
* ATAPI Support
*/
-#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
+#if defined(CONFIG_IDE_SWAP_IO)
/* since ATAPI may use commands with not 4 bytes alligned length
* we have our own transfer functions, 2 bytes alligned */
static void
@@ -1646,7 +1646,7 @@ input_data_shorts(int dev, ushort *sect_buf, int shorts)
#endif
}
-#else /* ! __PPC__ */
+#else /* ! CONFIG_IDE_SWAP_IO */
static void
output_data_shorts(int dev, ushort *sect_buf, int shorts)
{
@@ -1659,7 +1659,7 @@ input_data_shorts(int dev, ushort *sect_buf, int shorts)
insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, shorts);
}
-#endif /* __PPC__ */
+#endif /* CONFIG_IDE_SWAP_IO */
/*
* Wait until (Status & mask) == res, or timeout (in ms)
diff --git a/doc/README.PXA_CF b/doc/README.PXA_CF
index 6a0f236..1d76b32 100644
--- a/doc/README.PXA_CF
+++ b/doc/README.PXA_CF
@@ -6,6 +6,14 @@ follow the connections of the standard lubbock. Anyway just the block
marked memory configuration should be touched since the other parameters
are imposed by the PXA architecture.
+EDIT 2010-07-01: in common/cmd_ide.c, having CONFIG_PXA_PCMCIA defined
+would cause looping on inw()/outw() rather than using insw()/outsw(),
+thus making sure IDE / ATA bytes are properly swapped. This behaviour
+is now controlled by CONFIG_IDE_SWAP_IO, therefore PXA boards with
+PCMCIA should #define CONFIG_IDE_SWAP_IO.
+
+#define CONFIG_IDE_SWAP_IO
+
#define CONFIG_PXA_PCMCIA 1
#define CONFIG_PXA_IDE 1
diff --git a/include/configs/ap325rxa.h b/include/configs/ap325rxa.h
index 70dd47e..80a5797 100644
--- a/include/configs/ap325rxa.h
+++ b/include/configs/ap325rxa.h
@@ -138,6 +138,7 @@
#define CONFIG_SYS_ATA_DATA_OFFSET 0x200 /* data reg offset */
#define CONFIG_SYS_ATA_REG_OFFSET 0x200 /* reg offset */
#define CONFIG_SYS_ATA_ALT_OFFSET 0x210 /* alternate register offset */
+#define CONFIG_IDE_SWAP_IO
/* if you use all NOR Flash , you change dip-switch. Please see Manual. */
#define CONFIG_SYS_MAX_FLASH_BANKS 1
diff --git a/include/configs/ms7720se.h b/include/configs/ms7720se.h
index ba0a3f8..0ea3527 100644
--- a/include/configs/ms7720se.h
+++ b/include/configs/ms7720se.h
@@ -122,5 +122,6 @@
#define CONFIG_SYS_ATA_DATA_OFFSET 0 /* data reg offset */
#define CONFIG_SYS_ATA_REG_OFFSET 0 /* reg offset */
#define CONFIG_SYS_ATA_ALT_OFFSET 0x200 /* alternate register offset */
+#define CONFIG_IDE_SWAP_IO
#endif /* __MS7720SE_H */
diff --git a/include/configs/r2dplus.h b/include/configs/r2dplus.h
index 8931b97..955f3ff 100644
--- a/include/configs/r2dplus.h
+++ b/include/configs/r2dplus.h
@@ -96,6 +96,7 @@
#define CONFIG_SYS_ATA_DATA_OFFSET 0x1000 /* data reg offset */
#define CONFIG_SYS_ATA_REG_OFFSET 0x1000 /* reg offset */
#define CONFIG_SYS_ATA_ALT_OFFSET 0x800 /* alternate register offset */
+#define CONFIG_IDE_SWAP_IO
/*
* SuperH PCI Bridge Configration
diff --git a/include/configs/r7780mp.h b/include/configs/r7780mp.h
index 71c570e..3afe93a 100644
--- a/include/configs/r7780mp.h
+++ b/include/configs/r7780mp.h
@@ -171,6 +171,7 @@
#define CONFIG_SYS_ATA_DATA_OFFSET 0x1000 /* data reg offset */
#define CONFIG_SYS_ATA_REG_OFFSET 0x1000 /* reg offset */
#define CONFIG_SYS_ATA_ALT_OFFSET 0x800 /* alternate register offset */
+#define CONFIG_IDE_SWAP_IO
#endif /* CONFIG_CMD_IDE */
#endif /* __R7780RP_H */
--
1.6.4.4
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