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-rw-r--r--target/linux/ar7-2.6/files/arch/mips/ar7/prom.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/target/linux/ar7-2.6/files/arch/mips/ar7/prom.c b/target/linux/ar7-2.6/files/arch/mips/ar7/prom.c
index d19714c85..99b528d44 100644
--- a/target/linux/ar7-2.6/files/arch/mips/ar7/prom.c
+++ b/target/linux/ar7-2.6/files/arch/mips/ar7/prom.c
@@ -232,11 +232,49 @@ static void __init ar7_init_env(struct env_var *env)
}
}
+static void __init console_config(void)
+{
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+ char console_string[40];
+ int baud = 0;
+ char parity = '\0', bits = '\0', flow = '\0';
+ char *s, *p;
+
+ if (strstr(prom_getcmdline(), "console="))
+ return;
+
+ if ((s = prom_getenv("modetty0"))) {
+ baud = simple_strtoul(s, &p, 10);
+ s = p;
+ if (*s == ',') s++;
+ if (*s) parity = *s++;
+ if (*s == ',') s++;
+ if (*s) bits = *s++;
+ if (*s == ',') s++;
+ if (*s == 'h') flow = 'r';
+ }
+
+ if (baud == 0)
+ baud = 38400;
+ if (parity != 'n' && parity != 'o' && parity != 'e')
+ parity = 'n';
+ if (bits != '7' && bits != '8')
+ bits = '8';
+ if (flow == '\0')
+ flow = 'r';
+
+ sprintf(console_string, " console=ttyS0,%d%c%c%c", baud,
+ parity, bits, flow);
+ strcat(prom_getcmdline(), console_string);
+#endif
+}
+
void __init prom_init(void)
{
prom_printf("\nLINUX running...\n");
ar7_init_cmdline(fw_arg0, (char **)fw_arg1);
ar7_init_env((struct env_var *)fw_arg2);
+ console_config();
}
#define PORT(offset) (KSEG1ADDR(AR7_REGS_UART0 + (offset * 4)))