diff options
Diffstat (limited to 'board/cogent/serial.c')
| -rw-r--r-- | board/cogent/serial.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/board/cogent/serial.c b/board/cogent/serial.c deleted file mode 100644 index 95c8120722..0000000000 --- a/board/cogent/serial.c +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Simple serial driver for Cogent motherboard serial ports - * for use during boot - */ - -#include <common.h> -#include "serial.h" -#include <serial.h> -#include <linux/compiler.h> - -DECLARE_GLOBAL_DATA_PTR; - -#if (CMA_MB_CAPS & CMA_MB_CAP_SERPAR) - -#if (defined(CONFIG_8xx) && defined(CONFIG_8xx_CONS_NONE)) || \ - (defined(CONFIG_MPC8260) && defined(CONFIG_CONS_NONE)) - -#if CONFIG_CONS_INDEX == 1 -#define CMA_MB_SERIAL_BASE CMA_MB_SERIALA_BASE -#elif CONFIG_CONS_INDEX == 2 -#define CMA_MB_SERIAL_BASE CMA_MB_SERIALB_BASE -#elif CONFIG_CONS_INDEX == 3 && (CMA_MB_CAPS & CMA_MB_CAP_SER2) -#define CMA_MB_SERIAL_BASE CMA_MB_SER2A_BASE -#elif CONFIG_CONS_INDEX == 4 && (CMA_MB_CAPS & CMA_MB_CAP_SER2) -#define CMA_MB_SERIAL_BASE CMA_MB_SER2B_BASE -#else -#error CONFIG_CONS_INDEX must be configured for Cogent motherboard serial -#endif - -static int cogent_serial_init(void) -{ - cma_mb_serial *mbsp = (cma_mb_serial *) CMA_MB_SERIAL_BASE; - - cma_mb_reg_write (&mbsp->ser_ier, 0x00); /* turn off interrupts */ - serial_setbrg (); - cma_mb_reg_write (&mbsp->ser_lcr, 0x03); /* 8 data, 1 stop, no parity */ - cma_mb_reg_write (&mbsp->ser_mcr, 0x03); /* RTS/DTR */ - cma_mb_reg_write (&mbsp->ser_fcr, 0x07); /* Clear & enable FIFOs */ - - return (0); -} - -static void cogent_serial_setbrg(void) -{ - cma_mb_serial *mbsp = (cma_mb_serial *) CMA_MB_SERIAL_BASE; - unsigned int divisor; - unsigned char lcr; - - if ((divisor = br_to_div (gd->baudrate)) == 0) - divisor = DEFDIV; - - lcr = cma_mb_reg_read (&mbsp->ser_lcr); - cma_mb_reg_write (&mbsp->ser_lcr, lcr | 0x80); /* Access baud rate(set DLAB) */ - cma_mb_reg_write (&mbsp->ser_brl, divisor & 0xff); - cma_mb_reg_write (&mbsp->ser_brh, (divisor >> 8) & 0xff); - cma_mb_reg_write (&mbsp->ser_lcr, lcr); /* unset DLAB */ -} - -static void cogent_serial_putc(const char c) -{ - cma_mb_serial *mbsp = (cma_mb_serial *) CMA_MB_SERIAL_BASE; - - if (c == '\n') - serial_putc ('\r'); - - while ((cma_mb_reg_read (&mbsp->ser_lsr) & LSR_THRE) == 0); - - cma_mb_reg_write (&mbsp->ser_thr, c); -} - -static int cogent_serial_getc(void) -{ - cma_mb_serial *mbsp = (cma_mb_serial *) CMA_MB_SERIAL_BASE; - - while ((cma_mb_reg_read (&mbsp->ser_lsr) & LSR_DR) == 0); - - return ((int) cma_mb_reg_read (&mbsp->ser_rhr) & 0x7f); -} - -static int cogent_serial_tstc(void) -{ - cma_mb_serial *mbsp = (cma_mb_serial *) CMA_MB_SERIAL_BASE; - - return ((cma_mb_reg_read (&mbsp->ser_lsr) & LSR_DR) != 0); -} - -static struct serial_device cogent_serial_drv = { - .name = "cogent_serial", - .start = cogent_serial_init, - .stop = NULL, - .setbrg = cogent_serial_setbrg, - .putc = cogent_serial_putc, - .puts = default_serial_puts, - .getc = cogent_serial_getc, - .tstc = cogent_serial_tstc, -}; - -void cogent_serial_initialize(void) -{ - serial_register(&cogent_serial_drv); -} - -__weak struct serial_device *default_serial_console(void) -{ - return &cogent_serial_drv; -} -#endif /* CONS_NONE */ - -#if defined(CONFIG_CMD_KGDB) && \ - defined(CONFIG_KGDB_NONE) - -#if CONFIG_KGDB_INDEX == CONFIG_CONS_INDEX -#error Console and kgdb are on the same serial port - this is not supported -#endif - -#if CONFIG_KGDB_INDEX == 1 -#define CMA_MB_KGDB_SER_BASE CMA_MB_SERIALA_BASE -#elif CONFIG_KGDB_INDEX == 2 -#define CMA_MB_KGDB_SER_BASE CMA_MB_SERIALB_BASE -#elif CONFIG_KGDB_INDEX == 3 && (CMA_MB_CAPS & CMA_MB_CAP_SER2) -#define CMA_MB_KGDB_SER_BASE CMA_MB_SER2A_BASE -#elif CONFIG_KGDB_INDEX == 4 && (CMA_MB_CAPS & CMA_MB_CAP_SER2) -#define CMA_MB_KGDB_SER_BASE CMA_MB_SER2B_BASE -#else -#error CONFIG_KGDB_INDEX must be configured for Cogent motherboard serial -#endif - -void kgdb_serial_init (void) -{ - cma_mb_serial *mbsp = (cma_mb_serial *) CMA_MB_KGDB_SER_BASE; - unsigned int divisor; - - if ((divisor = br_to_div (CONFIG_KGDB_BAUDRATE)) == 0) - divisor = DEFDIV; - - cma_mb_reg_write (&mbsp->ser_ier, 0x00); /* turn off interrupts */ - cma_mb_reg_write (&mbsp->ser_lcr, 0x80); /* Access baud rate(set DLAB) */ - cma_mb_reg_write (&mbsp->ser_brl, divisor & 0xff); - cma_mb_reg_write (&mbsp->ser_brh, (divisor >> 8) & 0xff); - cma_mb_reg_write (&mbsp->ser_lcr, 0x03); /* 8 data, 1 stop, no parity */ - cma_mb_reg_write (&mbsp->ser_mcr, 0x03); /* RTS/DTR */ - cma_mb_reg_write (&mbsp->ser_fcr, 0x07); /* Clear & enable FIFOs */ - - printf ("[on cma10x serial port B] "); -} - -void putDebugChar (int c) -{ - cma_mb_serial *mbsp = (cma_mb_serial *) CMA_MB_KGDB_SER_BASE; - - while ((cma_mb_reg_read (&mbsp->ser_lsr) & LSR_THRE) == 0); - - cma_mb_reg_write (&mbsp->ser_thr, c & 0xff); -} - -void putDebugStr (const char *str) -{ - while (*str != '\0') { - if (*str == '\n') - putDebugChar ('\r'); - putDebugChar (*str++); - } -} - -int getDebugChar (void) -{ - cma_mb_serial *mbsp = (cma_mb_serial *) CMA_MB_KGDB_SER_BASE; - - while ((cma_mb_reg_read (&mbsp->ser_lsr) & LSR_DR) == 0); - - return ((int) cma_mb_reg_read (&mbsp->ser_rhr) & 0x7f); -} - -void kgdb_interruptible (int yes) -{ - cma_mb_serial *mbsp = (cma_mb_serial *) CMA_MB_KGDB_SER_BASE; - - if (yes == 1) { - printf ("kgdb: turning serial ints on\n"); - cma_mb_reg_write (&mbsp->ser_ier, 0xf); - } else { - printf ("kgdb: turning serial ints off\n"); - cma_mb_reg_write (&mbsp->ser_ier, 0x0); - } -} - -#endif /* KGDB && KGDB_NONE */ - -#endif /* CAPS & SERPAR */ |
