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LEON3: debugputs removed pointless isinit code, invoked only once

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Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
This commit is contained in:
Daniel Hellstrom
2012-04-19 15:21:24 +02:00
committed by Gedare Bloom
parent 5903484a29
commit 605b4b649d
1 changed files with 26 additions and 34 deletions
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60
c/src/lib/libbsp/sparc/leon3/console/debugputs.c
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@@ -21,8 +21,6 @@
#include <assert.h> #include <assert.h>
#include <stdio.h> #include <stdio.h>
static int isinit = 0;
/* Let user override which on-chip APBUART will be debug UART /* Let user override which on-chip APBUART will be debug UART
* 0 = Default APBUART. On MP system CPU0=APBUART0, CPU1=APBUART1... * 0 = Default APBUART. On MP system CPU0=APBUART0, CPU1=APBUART1...
* 1 = APBUART[0] * 1 = APBUART[0]
@@ -50,44 +48,38 @@ int bsp_debug_uart_init(void)
struct ambapp_dev *adev; struct ambapp_dev *adev;
struct ambapp_apb_info *apb; struct ambapp_apb_info *apb;
if (isinit == 0) { /* Update debug_uart_index to index used as debug console.
/* Update debug_uart_index to index used as debug console. * Let user select Debug console by setting debug_uart_index. If the
* Let user select Debug console by setting debug_uart_index. If the * BSP is to provide the default UART (debug_uart_index==0):
* BSP is to provide the default UART (debug_uart_index==0): * non-MP: APBUART[0] is debug console
* non-MP: APBUART[0] is debug console * MP: LEON CPU index select UART
* MP: LEON CPU index select UART */
*/ if (debug_uart_index == 0) {
if (debug_uart_index == 0) {
#if defined(RTEMS_MULTIPROCESSING) #if defined(RTEMS_MULTIPROCESSING)
debug_uart_index = LEON3_Cpu_Index; debug_uart_index = LEON3_Cpu_Index;
#else #else
debug_uart_index = 0; debug_uart_index = 0;
#endif #endif
} else { } else {
debug_uart_index = debug_uart_index - 1; /* User selected dbg-console */ debug_uart_index = debug_uart_index - 1; /* User selected dbg-console */
}
/* Find APBUART core for System Debug Console */
i = debug_uart_index;
adev = (void *)ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_APB_SLVS),
VENDOR_GAISLER, GAISLER_APBUART,
ambapp_find_by_idx, (void *)&i);
if (adev) {
/* Found a matching debug console, initialize debug uart if present
* for printk
*/
apb = (struct ambapp_apb_info *)adev->devinfo;
dbg_uart = (ambapp_apb_uart *)apb->start;
dbg_uart->ctrl |= LEON_REG_UART_CTRL_RE | LEON_REG_UART_CTRL_TE;
dbg_uart->status = 0;
}
isinit = 1;
} }
if (dbg_uart == NULL) /* Find APBUART core for System Debug Console */
return 0; i = debug_uart_index;
else adev = (void *)ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_APB_SLVS),
VENDOR_GAISLER, GAISLER_APBUART,
ambapp_find_by_idx, (void *)&i);
if (adev) {
/* Found a matching debug console, initialize debug uart if present
* for printk
*/
apb = (struct ambapp_apb_info *)adev->devinfo;
dbg_uart = (ambapp_apb_uart *)apb->start;
dbg_uart->ctrl |= LEON_REG_UART_CTRL_RE | LEON_REG_UART_CTRL_TE;
dbg_uart->status = 0;
return 1; return 1;
} else
return 0;
} }
/* /*