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bsp/leon3: Add LEON3_APBUART_BASE

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This commit is contained in:
Sebastian Huber
2021-07-16 10:35:35 +02:00
parent 37880fc656
commit fc97810ce3
5 changed files with 58 additions and 8 deletions
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37
bsps/sparc/leon3/console/printk_support.c
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@@ -38,20 +38,27 @@
#include <bsp/leon3.h>
#include <rtems/bspIo.h>
#include <rtems/sysinit.h>
#include <rtems/score/thread.h>
#include <grlib/apbuart.h>
#include <grlib/io.h>
#if !defined(LEON3_APBUART_BASE)
#include <grlib/ambapp.h>
int leon3_debug_uart_index __attribute__((weak)) = 0;
apbuart *leon3_debug_uart = NULL;
#endif
static void bsp_debug_uart_init(void);
static void bsp_debug_uart_discard(char c)
static void apbuart_enable_receive_and_transmit(apbuart *regs)
{
(void) c;
uint32_t ctrl;
ctrl = grlib_load_32(&regs->ctrl);
ctrl |= APBUART_CTRL_RE | APBUART_CTRL_TE;
grlib_store_32(&regs->ctrl, ctrl);
grlib_store_32(&regs->status, 0);
}
static void bsp_debug_uart_output_char(char c)
@@ -71,6 +78,22 @@ static void bsp_debug_uart_pre_init_out(char c)
(*BSP_output_char)(c);
}
#if defined(LEON3_APBUART_BASE)
static void bsp_debug_uart_init(void)
{
apbuart_enable_receive_and_transmit(leon3_debug_uart);
BSP_poll_char = bsp_debug_uart_poll_char;
BSP_output_char = bsp_debug_uart_output_char;
}
#else /* !LEON3_APBUART_BASE */
static void bsp_debug_uart_discard(char c)
{
(void) c;
}
/* Initialize the BSP system debug console layer. It will scan AMBA Plu&Play
* for a debug APBUART and enable RX/TX for that UART.
*/
@@ -108,7 +131,6 @@ static void bsp_debug_uart_init(void)
ambapp_find_by_idx, (void *)&i);
if (adev != NULL) {
struct ambapp_apb_info *apb;
uint32_t ctrl;
/*
* Found a matching debug console, initialize debug UART if present for
@@ -116,16 +138,15 @@ static void bsp_debug_uart_init(void)
*/
apb = (struct ambapp_apb_info *)adev->devinfo;
leon3_debug_uart = (apbuart *)apb->start;
ctrl = grlib_load_32(&leon3_debug_uart->ctrl);
ctrl |= APBUART_CTRL_RE | APBUART_CTRL_TE;
grlib_store_32(&leon3_debug_uart->ctrl, ctrl);
grlib_store_32(&leon3_debug_uart->status, 0);
apbuart_enable_receive_and_transmit(leon3_debug_uart);
BSP_poll_char = bsp_debug_uart_poll_char;
BSP_output_char = bsp_debug_uart_output_char;
}
}
#endif /* LEON3_APBUART_BASE */
RTEMS_SYSINIT_ITEM(
bsp_debug_uart_init,
RTEMS_SYSINIT_BSP_START,