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authorMacpaul Lin <macpaul@andestech.com>2011-04-11 20:45:32 +0000
committerWolfgang Denk <wd@denx.de>2011-04-30 21:04:25 +0200
commit0abddf82d54c704cf066524235b6414333e8d087 (patch)
tree3ae31f30d1d61056be409afe1ea98a21646262ac /common/cmd_ide.c
parentdea6386b715827e080a9fa6e6d706f2bdf8a998e (diff)
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cmd_ide: enhance new feature "CONFIG_IDE_AHB"
Although most IDE controller is designed to be connected to PCI bridge, there are still some IDE controller support AHB interface for SoC design. The driver implementation of these IDE-AHB controllers differ from other IDE-PCI controller, some additional registers and commands access is required during CMD/DATA I/O. Hence a configuration "CONFIG_IDE_AHB" in cmd_ide.c is required to be defined to support these kinds of SoC controllers. Such as Faraday's FTIDE020 series and Global Unichip's UINF-0301. Signed-off-by: Macpaul Lin <macpaul@andestech.com>
Diffstat (limited to 'common/cmd_ide.c')
-rw-r--r--common/cmd_ide.c29
1 files changed, 28 insertions, 1 deletions
diff --git a/common/cmd_ide.c b/common/cmd_ide.c
index a1f7e57..e7952ff 100644
--- a/common/cmd_ide.c
+++ b/common/cmd_ide.c
@@ -517,8 +517,20 @@ __ide_outb(int dev, int port, unsigned char val)
{
debug ("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
dev, port, val, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)));
+
+#if defined(CONFIG_IDE_AHB)
+ if (port) {
+ /* write command */
+ ide_write_register(dev, port, val);
+ } else {
+ /* write data */
+ outb(val, (ATA_CURR_BASE(dev)));
+ }
+#else
outb(val, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)));
+#endif
}
+
void ide_outb (int dev, int port, unsigned char val)
__attribute__((weak, alias("__ide_outb")));
@@ -526,7 +538,13 @@ unsigned char inline
__ide_inb(int dev, int port)
{
uchar val;
+
+#if defined(CONFIG_IDE_AHB)
+ val = ide_read_register(dev, port);
+#else
val = inb((ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)));
+#endif
+
debug ("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
dev, port, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)), val);
return val;
@@ -695,6 +713,7 @@ void ide_init (void)
ide_dev_desc[i].blksz=0;
ide_dev_desc[i].lba=0;
ide_dev_desc[i].block_read=ide_read;
+ ide_dev_desc[i].block_write = ide_write;
if (!ide_bus_ok[IDE_BUS(i)])
continue;
ide_led (led, 1); /* LED on */
@@ -902,7 +921,11 @@ output_data(int dev, ulong *sect_buf, int words)
static void
output_data(int dev, ulong *sect_buf, int words)
{
- outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words<<1);
+#if defined(CONFIG_IDE_AHB)
+ ide_write_data(dev, sect_buf, words);
+#else
+ outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words << 1);
+#endif
}
#endif /* CONFIG_IDE_SWAP_IO */
@@ -960,7 +983,11 @@ input_data(int dev, ulong *sect_buf, int words)
static void
input_data(int dev, ulong *sect_buf, int words)
{
+#if defined(CONFIG_IDE_AHB)
+ ide_read_data(dev, sect_buf, words);
+#else
insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words << 1);
+#endif
}
#endif /* CONFIG_IDE_SWAP_IO */