Current driver does not work on EVM because we need to enable ATA
pins via the GPIO expander. This is not the best way to do it, but I
don't have a better one yet.
Signed-off-by: Bernard Blackham <[EMAIL PROTECTED]>
---
drivers/ide/arm/palm_bk3710.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
Index: linux-davinci-2.6.24.git/drivers/ide/arm/palm_bk3710.c
===================================================================
--- linux-davinci-2.6.24.git.orig/drivers/ide/arm/palm_bk3710.c 2008-03-27
22:16:29.000000000 +0900
+++ linux-davinci-2.6.24.git/drivers/ide/arm/palm_bk3710.c 2008-03-27
22:32:11.000000000 +0900
@@ -34,6 +34,10 @@
#include <linux/clk.h>
#include <linux/platform_device.h>
+#ifdef CONFIG_MACH_DAVINCI_EVM
+#include <asm/arch/i2c-client.h>
+#endif /* CONFIG_MACH_DAVINCI_EVM */
+
/* Offset of the primary interface registers */
#define IDE_PALM_ATA_PRI_REG_OFFSET 0x1F0
@@ -351,6 +355,26 @@ static int __devinit palm_bk3710_probe(s
clk_enable(ideclkp);
ide_palm_clk = clk_get_rate(ideclkp)/100000;
ide_palm_clk = (10000/ide_palm_clk) + 1;
+
+#ifdef CONFIG_MACH_DAVINCI_EVM
+ /*
+ * FIXME: This should no longer live here...
+ *
+ * ATA_SEL is 1 -> Disable 0 -> Enable
+ * CF_SEL is 1 -> Disable 0 -> Enable
+ *
+ * Ensure both are not Enabled.
+ */
+#ifdef CONFIG_DAVINCI_BLK_DEV_CF
+ davinci_i2c_expander_op (0x3A, ATA_SEL, 1);
+ davinci_i2c_expander_op (0x3A, CF_RESET, 1);
+ davinci_i2c_expander_op (0x3A, CF_SEL, 0);
+#else
+ davinci_i2c_expander_op (0x3A, CF_SEL, 1);
+ davinci_i2c_expander_op (0x3A, ATA_SEL, 0);
+#endif
+#endif /* CONFIG_MACH_DAVINCI_EVM */
+
/* Register the IDE interface with Linux ATA Interface */
memset(&hw, 0, sizeof(hw));
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