changeset 680:ee3ac8c617cb

armio.c: set GPIO2 output high initially On TI-canonical platforms GPIO2 is DCD modem control output. In TI's original code the AI_InitIOConfig() function called from Init_Target() would configure GPIO2 as an output and set the initial output value to low, but then the init code in uartfax.c called from Init_Serial_Flows() would immediately change it to high, corresponding to DCD not asserted. The result is a momentary asserted-state glitch on the DCD output. The present change eliminates this glitch, setting DCD output to not-asserted initially like it should be.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 25 Jun 2020 03:17:43 +0000
parents 52ee171ff5e4
children 140a0d24a64c
files src/cs/drivers/drv_core/armio/armio.c
diffstat 1 files changed, 3 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/src/cs/drivers/drv_core/armio/armio.c	Wed Jun 24 18:46:25 2020 +0000
+++ b/src/cs/drivers/drv_core/armio/armio.c	Thu Jun 25 03:17:43 2020 +0000
@@ -267,11 +267,11 @@
     // For targets other than GTM900, we enable the audio amplifier
     // if we are in an MMI!=0 build - for ACI builds use the AT@SPKR command.
 #ifdef CONFIG_TARGET_GTM900
-      *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x3F01;
+      *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x3F05;
 #elif (MMI != 0) || defined(CONFIG_GPIO1_HIGH)
-      *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x3F02;
+      *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x3F06;
 #else
-      *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x3F00;
+      *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x3F04;
 #endif
 
     // ARMIO_CNTL_REG register configuration :