diff options
Diffstat (limited to 'arch/mips/loongson1/common/prom.c')
| -rw-r--r-- | arch/mips/loongson1/common/prom.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/arch/mips/loongson1/common/prom.c b/arch/mips/loongson1/common/prom.c index 2a47af5a55c3..68600980ea49 100644 --- a/arch/mips/loongson1/common/prom.c +++ b/arch/mips/loongson1/common/prom.c @@ -27,7 +27,7 @@ char *prom_getenv(char *envname) i = strlen(envname); while (*env) { - if (strncmp(envname, *env, i) == 0 && *(*env+i) == '=') + if (strncmp(envname, *env, i) == 0 && *(*env + i) == '=') return *env + i + 1; env++; } @@ -49,7 +49,7 @@ void __init prom_init_cmdline(void) for (i = 1; i < prom_argc; i++) { strcpy(c, prom_argv[i]); c += strlen(prom_argv[i]); - if (i < prom_argc-1) + if (i < prom_argc - 1) *c++ = ' '; } *c = 0; @@ -57,6 +57,7 @@ void __init prom_init_cmdline(void) void __init prom_init(void) { + void __iomem *uart_base; prom_argc = fw_arg0; prom_argv = (char **)fw_arg1; prom_envp = (char **)fw_arg2; @@ -65,23 +66,18 @@ void __init prom_init(void) memsize = env_or_default("memsize", DEFAULT_MEMSIZE); highmemsize = env_or_default("highmemsize", 0x0); -} -void __init prom_free_prom_memory(void) -{ + if (strstr(arcs_cmdline, "console=ttyS3")) + uart_base = ioremap_nocache(LS1X_UART3_BASE, 0x0f); + else if (strstr(arcs_cmdline, "console=ttyS2")) + uart_base = ioremap_nocache(LS1X_UART2_BASE, 0x0f); + else if (strstr(arcs_cmdline, "console=ttyS1")) + uart_base = ioremap_nocache(LS1X_UART1_BASE, 0x0f); + else + uart_base = ioremap_nocache(LS1X_UART0_BASE, 0x0f); + setup_8250_early_printk_port((unsigned long)uart_base, 0, 0); } -#define PORT(offset) (u8 *)(KSEG1ADDR(LS1X_UART0_BASE + offset)) - -void prom_putchar(char c) +void __init prom_free_prom_memory(void) { - int timeout; - - timeout = 1024; - - while (((readb(PORT(UART_LSR)) & UART_LSR_THRE) == 0) - && (timeout-- > 0)) - ; - - writeb(c, PORT(UART_TX)); } |