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author | Sonic Zhang <sonic.zhang@analog.com> | 2013-03-14 15:13:30 +0800 |
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committer | Sonic Zhang <sonic.zhang@analog.com> | 2013-05-13 16:26:27 +0800 |
commit | d68e7faac08be5424c748c0ead9b07dd00a43cc1 (patch) | |
tree | 36802a9eba480bced70240c1efbbec87a832ded2 /arch/blackfin | |
parent | 50aadcc560560f7365bb6373d4db1375522c4fe3 (diff) | |
download | u-boot-imx-d68e7faac08be5424c748c0ead9b07dd00a43cc1.zip u-boot-imx-d68e7faac08be5424c748c0ead9b07dd00a43cc1.tar.gz u-boot-imx-d68e7faac08be5424c748c0ead9b07dd00a43cc1.tar.bz2 |
blackfin: Add memory virtual console to blackfin serial driver.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Diffstat (limited to 'arch/blackfin')
-rw-r--r-- | arch/blackfin/cpu/serial.c | 60 |
1 files changed, 59 insertions, 1 deletions
diff --git a/arch/blackfin/cpu/serial.c b/arch/blackfin/cpu/serial.c index 89290d6..c453a03 100644 --- a/arch/blackfin/cpu/serial.c +++ b/arch/blackfin/cpu/serial.c @@ -351,4 +351,62 @@ void _serial_early_init(void) } #endif -#endif +#elif defined(CONFIG_UART_MEM) + +char serial_logbuf[CONFIG_UART_MEM]; +char *serial_logbuf_head = serial_logbuf; + +int serial_mem_init(void) +{ + serial_logbuf_head = serial_logbuf; + return 0; +} + +void serial_mem_setbrg(void) +{ +} + +int serial_mem_tstc(void) +{ + return 0; +} + +int serial_mem_getc(void) +{ + return 0; +} + +void serial_mem_putc(const char c) +{ + *serial_logbuf_head = c; + if (++serial_logbuf_head == serial_logbuf + CONFIG_UART_MEM) + serial_logbuf_head = serial_logbuf; +} + +void serial_mem_puts(const char *s) +{ + while (*s) + serial_putc(*s++); +} + +struct serial_device bfin_serial_mem_device = { + .name = "bfin_uart_mem", + .start = serial_mem_init, + .setbrg = serial_mem_setbrg, + .getc = serial_mem_getc, + .tstc = serial_mem_tstc, + .putc = serial_mem_putc, + .puts = serial_mem_puts, +}; + + +__weak struct serial_device *default_serial_console(void) +{ + return &bfin_serial_mem_device; +} + +void bfin_serial_initialize(void) +{ + serial_register(&bfin_serial_mem_device); +} +#endif /* CONFIG_UART_MEM */ |