diff options
Diffstat (limited to 'drivers/serial')
-rw-r--r-- | drivers/serial/mpc52xx_uart.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c index b8727d9bf690..1288d6203e94 100644 --- a/drivers/serial/mpc52xx_uart.c +++ b/drivers/serial/mpc52xx_uart.c | |||
@@ -37,11 +37,11 @@ | |||
37 | * by the bootloader or in the platform init code. | 37 | * by the bootloader or in the platform init code. |
38 | * | 38 | * |
39 | * The idx field must be equal to the PSC index ( e.g. 0 for PSC1, 1 for PSC2, | 39 | * The idx field must be equal to the PSC index ( e.g. 0 for PSC1, 1 for PSC2, |
40 | * and so on). So the PSC1 is mapped to /dev/ttyS0, PSC2 to /dev/ttyS1 and so | 40 | * and so on). So the PSC1 is mapped to /dev/ttyPSC0, PSC2 to /dev/ttyPSC1 and |
41 | * on. But be warned, it's an ABSOLUTE REQUIREMENT ! This is needed mainly for | 41 | * so on. But be warned, it's an ABSOLUTE REQUIREMENT ! This is needed mainly |
42 | * the console code : without this 1:1 mapping, at early boot time, when we are | 42 | * fpr the console code : without this 1:1 mapping, at early boot time, when we |
43 | * parsing the kernel args console=ttyS?, we wouldn't know wich PSC it will be | 43 | * are parsing the kernel args console=ttyPSC?, we wouldn't know wich PSC it |
44 | * mapped to. | 44 | * will be mapped to. |
45 | */ | 45 | */ |
46 | 46 | ||
47 | #include <linux/config.h> | 47 | #include <linux/config.h> |
@@ -65,6 +65,10 @@ | |||
65 | #include <linux/serial_core.h> | 65 | #include <linux/serial_core.h> |
66 | 66 | ||
67 | 67 | ||
68 | /* We've been assigned a range on the "Low-density serial ports" major */ | ||
69 | #define SERIAL_PSC_MAJOR 204 | ||
70 | #define SERIAL_PSC_MINOR 148 | ||
71 | |||
68 | 72 | ||
69 | #define ISR_PASS_LIMIT 256 /* Max number of iteration in the interrupt */ | 73 | #define ISR_PASS_LIMIT 256 /* Max number of iteration in the interrupt */ |
70 | 74 | ||
@@ -668,15 +672,15 @@ mpc52xx_console_setup(struct console *co, char *options) | |||
668 | } | 672 | } |
669 | 673 | ||
670 | 674 | ||
671 | extern struct uart_driver mpc52xx_uart_driver; | 675 | static struct uart_driver mpc52xx_uart_driver; |
672 | 676 | ||
673 | static struct console mpc52xx_console = { | 677 | static struct console mpc52xx_console = { |
674 | .name = "ttyS", | 678 | .name = "ttyPSC", |
675 | .write = mpc52xx_console_write, | 679 | .write = mpc52xx_console_write, |
676 | .device = uart_console_device, | 680 | .device = uart_console_device, |
677 | .setup = mpc52xx_console_setup, | 681 | .setup = mpc52xx_console_setup, |
678 | .flags = CON_PRINTBUFFER, | 682 | .flags = CON_PRINTBUFFER, |
679 | .index = -1, /* Specified on the cmdline (e.g. console=ttyS0 ) */ | 683 | .index = -1, /* Specified on the cmdline (e.g. console=ttyPSC0 ) */ |
680 | .data = &mpc52xx_uart_driver, | 684 | .data = &mpc52xx_uart_driver, |
681 | }; | 685 | }; |
682 | 686 | ||
@@ -703,10 +707,10 @@ console_initcall(mpc52xx_console_init); | |||
703 | static struct uart_driver mpc52xx_uart_driver = { | 707 | static struct uart_driver mpc52xx_uart_driver = { |
704 | .owner = THIS_MODULE, | 708 | .owner = THIS_MODULE, |
705 | .driver_name = "mpc52xx_psc_uart", | 709 | .driver_name = "mpc52xx_psc_uart", |
706 | .dev_name = "ttyS", | 710 | .dev_name = "ttyPSC", |
707 | .devfs_name = "ttyS", | 711 | .devfs_name = "ttyPSC", |
708 | .major = TTY_MAJOR, | 712 | .major = SERIAL_PSC_MAJOR, |
709 | .minor = 64, | 713 | .minor = SERIAL_PSC_MINOR, |
710 | .nr = MPC52xx_PSC_MAXNUM, | 714 | .nr = MPC52xx_PSC_MAXNUM, |
711 | .cons = MPC52xx_PSC_CONSOLE, | 715 | .cons = MPC52xx_PSC_CONSOLE, |
712 | }; | 716 | }; |