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bsp/tms570: include complete peripheral initialization to SCI driver.

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Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
This commit is contained in:
Pavel Pisa
2015-12-07 16:59:35 +01:00
parent 9d09f4977f
commit d830414e69
1 changed files with 36 additions and 2 deletions
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38
c/src/lib/libbsp/arm/tms570/console/tms570-sci.c
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@@ -95,6 +95,40 @@ rtems_device_driver console_initialize(
++minor ++minor
) { ) {
tms570_sci_context *ctx = &driver_context_table[minor]; tms570_sci_context *ctx = &driver_context_table[minor];
uint32_t rx_pin = 1 << 1;
uint32_t tx_pin = 1 << 2;
/* Resec SCI peripheral */
ctx->regs->GCR0 = TMS570_SCI_GCR0_RESET * 0;
ctx->regs->GCR0 = TMS570_SCI_GCR0_RESET * 1;
/* Clear all interrupt sources */
ctx->regs->CLEARINT = 0xffffffff;
/* Map all interrupts to SCI INT0 line */
ctx->regs->CLEARINTLVL = 0xffffffff;
ctx->regs->GCR1 = TMS570_SCI_GCR1_TXENA * 0 |
TMS570_SCI_GCR1_RXENA * 0 |
TMS570_SCI_GCR1_CONT * 0 | /* continue operation when debugged */
TMS570_SCI_GCR1_LOOP_BACK * 0 |
TMS570_SCI_GCR1_POWERDOWN * 0 |
TMS570_SCI_GCR1_SLEEP * 0 |
TMS570_SCI_GCR1_SWnRST * 0 | /* reset state */
TMS570_SCI_GCR1_CLOCK * 1 | /* internal clock */
TMS570_SCI_GCR1_TIMING_MODE * 1 |
TMS570_SCI_GCR1_COMM_MODE * 0;
/* Setup connection of SCI peripheral Rx and Tx pins */
ctx->regs->PIO0 = rx_pin * 1 | tx_pin * 1; /* Rx and Tx pins are not GPIO */
ctx->regs->PIO3 = rx_pin * 0 | tx_pin * 0; /* Default output low */
ctx->regs->PIO1 = rx_pin * 0 | tx_pin * 0; /* Input when not used by SCI */
ctx->regs->PIO6 = rx_pin * 0 | tx_pin * 0; /* No open drain */
ctx->regs->PIO7 = rx_pin * 0 | tx_pin * 0; /* Pull-up/down enabled */
ctx->regs->PIO8 = rx_pin * 1 | tx_pin * 1; /* Select pull-up */
/* Bring device out of software reset */
ctx->regs->GCR1 |= TMS570_SCI_GCR1_SWnRST;
/* /*
* Install this device in the file system and Termios. In order * Install this device in the file system and Termios. In order
@@ -107,7 +141,7 @@ rtems_device_driver console_initialize(
major, major,
minor, minor,
handler, handler,
NULL, NULL,
&ctx->base &ctx->base
); );
if ( sc != RTEMS_SUCCESSFUL ) { if ( sc != RTEMS_SUCCESSFUL ) {
@@ -473,7 +507,7 @@ static bool tms570_sci_interrupt_first_open(
if ( ret == false ) { if ( ret == false ) {
return false; return false;
} }
ctx->regs->SETINTLVL = 0;
/* Register Interrupt handler */ /* Register Interrupt handler */
sc = rtems_interrupt_handler_install(ctx->irq, sc = rtems_interrupt_handler_install(ctx->irq,
ctx->device_name, ctx->device_name,