[Armadeus-commitlog] SF.net SVN: armadeus:[971] trunk/target/linux/modules/isp1761/ apf9328-isp1761.c

[<jo...@us...>]

Revision: 971
          http://armadeus.svn.sourceforge.net/armadeus/?rev=971&view=rev
Author:   jorasse
Date:     2008-12-25 23:58:26 +0000 (Thu, 25 Dec 2008)

Log Message:
-----------
[linux] improved ISP1760 pre-fetch timing according datasheet - optimized RD/WR pulse width

Modified Paths:
--------------
    trunk/target/linux/modules/isp1761/apf9328-isp1761.c

Modified: trunk/target/linux/modules/isp1761/apf9328-isp1761.c
===================================================================
--- trunk/target/linux/modules/isp1761/apf9328-isp1761.c	2008-12-20 21:00:40 UTC (rev 970)
+++ trunk/target/linux/modules/isp1761/apf9328-isp1761.c	2008-12-25 23:58:26 UTC (rev 971)
@@ -39,17 +39,17 @@
 #define CFG_CS3_WRITE_PROTECT		0	/* 1 : write access prohibited  */
 #define CFG_CS3_EB_SIGNAL_CONTROL_WRITE	1	/* 1 when EB is used as write signal*/
 
-#define CFG_CS3_READ_CYC_LGTH		105	/* ns */
-#define CFG_CS3_OE_ASSERT_DLY	35		/* ns */
-#define CFG_CS3_OE_NEG_DLY		35	/* ns */
+#define CFG_CS3_READ_CYC_LGTH		110	/* ns */
+#define CFG_CS3_OE_ASSERT_DLY		45	/* ns */
+#define CFG_CS3_OE_NEG_DLY		40	/* ns */
 
 #define CFG_CS3_CS_NEG_LGTH 	30	/* max 30 ns CS HIGH to CS LOW at 100MHz*/
 #define CFG_CS3_XTRA_DEAD_CYC	0	/* ns from CS HIGH to tristate bus */
 
 #define CFG_CS3_WRITE_XTRA_LGTH		0	/* ns */
-#define CFG_CS3_EB_ASSERT_DLY		5	/* ns */
-#define CFG_CS3_EB_NEG_DLY		65	/* ns */
-#define CFG_CS3_CS_ASSERT_NEG_DLY	0	/* ns */
+#define CFG_CS3_EB_ASSERT_DLY		45	/* ns */
+#define CFG_CS3_EB_NEG_DLY		45	/* ns */
+#define CFG_CS3_CS_ASSERT_NEG_DLY	35	/* ns */
 
 #define CFG_CS3_SYNC_ENABLE		0	/* enable synchronous burst mode*/
 #define CFG_CS3_SYNC_PAGE_MODE_EMUL	0	/* enable page mode emulation */
@@ -144,6 +144,7 @@
     /* configure the chip select 3 */
     __REG(IMX_EIM_BASE + CS3U + IMX_IO_BASE) = CFG_CS3U_VAL; //CSU
     __REG(IMX_EIM_BASE + CS3L + IMX_IO_BASE) = CFG_CS3L_VAL; //CSL
+	printk("CFG_CS3 %#x %#x", CFG_CS3U_VAL, CFG_CS3L_VAL);
     imx_gpio_mode( ISP1761_GPIO_IRQ | GPIO_IN | GPIO_GIUS ); /* Set up IRQ line. */
 	set_irq_type( ISP1761_IRQ, IRQF_TRIGGER_FALLING );
 	


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