r4277 - trunk/src/target/u-boot/patches

[werner at sita.openmoko.org]

Author: werner
Date: 2008-03-31 19:44:47 +0200 (Mon, 31 Mar 2008)
New Revision: 4277

Added:
   trunk/src/target/u-boot/patches/fix-cpu-input-pulldowns.patch
Modified:
   trunk/src/target/u-boot/patches/series
Log:
fix-cpu-input-pulldowns.patch

Solve following static GPIO input errors with pulldowns

GPE11: SPIMISO0    1  *float* Debug brd no pullup! *bad*
GPG08: EINT[16]    1  <=== copy of GPG0 !?! *bad*
GPH08: UEXTCLK     1 *NC* *FLOAT* *bad* *bad* *bad*
GPJ00: input       1 *NC* *FLOAT* *bad* *bad* *bad*
GPF03: TP-4705+debug  Yeah its *bad*, we can put a pulldown on it.

Signed-off-by: Andy Green <andy at openmoko.com>
---

 board/neo1973/gta02/gta02.c |   19 ++++++++++++++-----
 drivers/video/smedia3362.c  |    6 +++---
 2 files changed, 17 insertions(+), 8 deletions(-)



Added: trunk/src/target/u-boot/patches/fix-cpu-input-pulldowns.patch
===================================================================
--- trunk/src/target/u-boot/patches/fix-cpu-input-pulldowns.patch	2008-03-31 17:20:54 UTC (rev 4276)
+++ trunk/src/target/u-boot/patches/fix-cpu-input-pulldowns.patch	2008-03-31 17:44:47 UTC (rev 4277)
@@ -0,0 +1,71 @@
+Index: u-boot/board/neo1973/gta02/gta02.c
+===================================================================
+--- u-boot.orig/board/neo1973/gta02/gta02.c
++++ u-boot/board/neo1973/gta02/gta02.c
+@@ -170,26 +170,35 @@
+ 	gpio->GPBCON = 0x00155555;
+ 	gpio->GPBUP = 0x000007FF;
+ 
++	/* pulldown on "PIO_5" BT module to stop float when unpowered */
+ 	gpio->GPCCON = 0x55555155;
+-	gpio->GPCUP = 0x0000FFFF;
++	gpio->GPCUP = 0x0000FFFF & ~(1 << 5);
+ 
+ 	gpio->GPDCON = 0x55555555;
+ 	gpio->GPDUP = 0x0000FFFF;
+ 
++	/* pulldown on GPE11 / SPIMISO0 - goes to debug board and will float */
+ 	gpio->GPECON = 0xAAAAAAAA;
+-	gpio->GPEUP = 0x0000FFFF;
++	gpio->GPEUP = 0x0000FFFF & ~(1 << 11);
+ 
++	/* pulldown on GPF03: TP-4705+debug - debug conn will float */
+ 	gpio->GPFCON = 0x0000AAAA;
+-	gpio->GPFUP = 0x000000FF;
++	gpio->GPFUP = 0x000000FF & ~(1 << 3);
+ 
+ 	gpio->GPGCON = 0x01AAFE79;
+ 	gpio->GPGUP = 0x0000FFFF;
+ 
++	/* pulldown on GPH08: UEXTCLK, just floats!
++	 * pulldown GPH0 -- nCTS0 / RTS_MODEM -- floats when GSM off
++	 * pulldown GPH3 -- RXD[0] / TX_MODEM -- floats when GSM off
++	 */
+ 	gpio->GPHCON = 0x001AAAAA;
+-	gpio->GPHUP = 0x000007FF;
++	gpio->GPHUP = 0x000007FF & ~(1 << 8) & ~(1 << 0) & ~(1 << 3);
+ 
++	/* pulldown on GPJ00: input, just floats! */
++	/* pulldown on GPJ07: WLAN module WLAN_GPIO0, no ext pull */
+ 	gpio->GPJCON = 0x1551544;
+-	gpio->GPJUP = 0x1ffff;
++	gpio->GPJUP = 0x1ffff & ~(1 << 0) & ~(1 << 7);
+ 	gpio->GPJDAT |= (1 << 4) | (1 << 6);
+ 					/* Set GPJ4 to high (nGSM_EN) */
+ 					/* Set GPJ6 to high (nDL_GSM) */
+Index: u-boot/drivers/video/smedia3362.c
+===================================================================
+--- u-boot.orig/drivers/video/smedia3362.c
++++ u-boot/drivers/video/smedia3362.c
+@@ -95,7 +95,7 @@
+ 	0x2020, 0x3650, 0x0002, 0x01FF, 0x0000, 0x0000, 0x0000, 0x0000,
+ 	0x000D, 0x000B, 0x00EE, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+ 	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+-	0x1839, 0x0000, 0x2000, 0x0101, 0x0100, 0x0000, 0x0000, 0x0000,
++	0x1839, 0x0000, 0x2000, 0x0001 /*0101*/, 0x0100, 0x0000, 0x0000, 0x0000,
+ 	0x05DB, 0x5231, 0x09C3, 0x8261, 0x0003, 0x0000, 0x0000, 0x0000,
+ 	0x000F, 0x101E, 0xC0C3, 0x101E, 0x000F, 0x0001, 0x030F, 0x020F,
+ 	0x080F, 0x0F0F
+@@ -118,10 +118,10 @@
+ 	0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0,
+ 	0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0,
+ 	0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0,
+-	0x0873, 0xAFAF, 0x0108, 0x0010, 0x0000, 0x0000, 0x0000, 0x0000,
++	0x0c74, 0xAFAF, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+ 	0x0000, 0x1002, 0x6006, 0x00FF, 0x0001, 0x0020, 0x0000, 0x0000,
+ 	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+-	0x3210, 0x5432, 0xE100, 0x01D6
++	0x3210, 0x5432, 0xE100, 0x00d6/*0x01D6 */
+ };
+ 
+ #define glamofb_cmdq_empty() (glamo_reg_read(GLAMO_REGOFS_LCD + \

Modified: trunk/src/target/u-boot/patches/series
===================================================================
--- trunk/src/target/u-boot/patches/series	2008-03-31 17:20:54 UTC (rev 4276)
+++ trunk/src/target/u-boot/patches/series	2008-03-31 17:44:47 UTC (rev 4277)
@@ -93,6 +93,9 @@
 # fix and improve power management
 dont-smoke.patch
 
+# use pull-downs to keep unused inputs from floating
+fix-cpu-input-pulldowns.patch
+
 # Experimental.
 gpb-shadow.patch
 wait-for-power.patch