FreeCalypso > hg > fc-magnetite
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(-) [+] |
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--- 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 :