diff options
Diffstat (limited to 'c/src/lib/libbsp/sparc/leon3/console/printk_support.c')
| -rw-r--r-- | c/src/lib/libbsp/sparc/leon3/console/printk_support.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/leon3/console/printk_support.c b/c/src/lib/libbsp/sparc/leon3/console/printk_support.c index 286e37dca5..4c656785a7 100644 --- a/c/src/lib/libbsp/sparc/leon3/console/printk_support.c +++ b/c/src/lib/libbsp/sparc/leon3/console/printk_support.c @@ -25,6 +25,7 @@ int debug_uart_index __attribute__((weak)) = 0; static struct apbuart_regs *dbg_uart = NULL; +#ifndef LEON3_QEMU /* Before UART driver has registered (or when no UART is available), calls to * printk that gets to bsp_out_char() will be filling data into the * pre_printk_dbgbuf[] buffer, hopefully the buffer can help debugging the @@ -73,6 +74,25 @@ void bsp_debug_uart_init(void) dbg_uart->status = 0; } } +#else +static void bsp_out_char(char c); + +static void leon3_qemu_debug_uart_init(char c) +{ + bsp_debug_uart_init(); + + BSP_output_char = bsp_out_char; + + bsp_out_char(c); +} + +void bsp_debug_uart_init(void) +{ + dbg_uart = (struct apbuart_regs *)0x80000100; + dbg_uart->ctrl |= LEON_REG_UART_CTRL_RE | LEON_REG_UART_CTRL_TE; + dbg_uart->status = 0; +} +#endif /* * apbuart_outbyte_polled @@ -128,12 +148,14 @@ int apbuart_inbyte_nonblocking(struct apbuart_regs *regs) /* putchar/getchar for printk */ static void bsp_out_char(char c) { +#ifndef LEON3_QEMU if (dbg_uart == NULL) { /* Local debug buffer when UART driver has not registered */ pre_printk_dbgbuf[pre_printk_pos++] = c; pre_printk_pos = pre_printk_pos & (sizeof(pre_printk_dbgbuf)-1); return; } +#endif apbuart_outbyte_polled(dbg_uart, c, 1, 1); } @@ -144,7 +166,11 @@ static void bsp_out_char(char c) #include <rtems/bspIo.h> +#ifndef LEON3_QEMU BSP_output_char_function_type BSP_output_char = bsp_out_char; +#else +BSP_output_char_function_type BSP_output_char = leon3_qemu_debug_uart_init; +#endif static int bsp_in_char(void) { |