diff options
Diffstat (limited to 'arch/mips/au1000/common/dbg_io.c')
| -rw-r--r-- | arch/mips/au1000/common/dbg_io.c | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/arch/mips/au1000/common/dbg_io.c b/arch/mips/au1000/common/dbg_io.c deleted file mode 100644 index 7bc768e558d..00000000000 --- a/arch/mips/au1000/common/dbg_io.c +++ /dev/null @@ -1,122 +0,0 @@ - -#include <linux/config.h> -#include <asm/io.h> -#include <asm/mach-au1x00/au1000.h> - -#ifdef CONFIG_KGDB - -/* - * FIXME the user should be able to select the - * uart to be used for debugging. - */ -#define DEBUG_BASE UART_DEBUG_BASE -/**/ - -/* we need uint32 uint8 */ -/* #include "types.h" */ -typedef unsigned char uint8; -typedef unsigned int uint32; - -#define UART16550_BAUD_2400 2400 -#define UART16550_BAUD_4800 4800 -#define UART16550_BAUD_9600 9600 -#define UART16550_BAUD_19200 19200 -#define UART16550_BAUD_38400 38400 -#define UART16550_BAUD_57600 57600 -#define UART16550_BAUD_115200 115200 - -#define UART16550_PARITY_NONE 0 -#define UART16550_PARITY_ODD 0x08 -#define UART16550_PARITY_EVEN 0x18 -#define UART16550_PARITY_MARK 0x28 -#define UART16550_PARITY_SPACE 0x38 - -#define UART16550_DATA_5BIT 0x0 -#define UART16550_DATA_6BIT 0x1 -#define UART16550_DATA_7BIT 0x2 -#define UART16550_DATA_8BIT 0x3 - -#define UART16550_STOP_1BIT 0x0 -#define UART16550_STOP_2BIT 0x4 - - -#define UART_RX 0 /* Receive buffer */ -#define UART_TX 4 /* Transmit buffer */ -#define UART_IER 8 /* Interrupt Enable Register */ -#define UART_IIR 0xC /* Interrupt ID Register */ -#define UART_FCR 0x10 /* FIFO Control Register */ -#define UART_LCR 0x14 /* Line Control Register */ -#define UART_MCR 0x18 /* Modem Control Register */ -#define UART_LSR 0x1C /* Line Status Register */ -#define UART_MSR 0x20 /* Modem Status Register */ -#define UART_CLK 0x28 /* Baud Rat4e Clock Divider */ -#define UART_MOD_CNTRL 0x100 /* Module Control */ - -/* memory-mapped read/write of the port */ -#define UART16550_READ(y) (au_readl(DEBUG_BASE + y) & 0xff) -#define UART16550_WRITE(y,z) (au_writel(z&0xff, DEBUG_BASE + y)) - -extern unsigned long get_au1x00_uart_baud_base(void); -extern unsigned long cal_r4koff(void); - -void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) -{ - - if (UART16550_READ(UART_MOD_CNTRL) != 0x3) { - UART16550_WRITE(UART_MOD_CNTRL, 3); - } - cal_r4koff(); - - /* disable interrupts */ - UART16550_WRITE(UART_IER, 0); - - /* set up baud rate */ - { - uint32 divisor; - - /* set divisor */ - divisor = get_au1x00_uart_baud_base() / baud; - UART16550_WRITE(UART_CLK, divisor & 0xffff); - } - - /* set data format */ - UART16550_WRITE(UART_LCR, (data | parity | stop)); -} - -static int remoteDebugInitialized = 0; - -uint8 getDebugChar(void) -{ - if (!remoteDebugInitialized) { - remoteDebugInitialized = 1; - debugInit(UART16550_BAUD_115200, - UART16550_DATA_8BIT, - UART16550_PARITY_NONE, - UART16550_STOP_1BIT); - } - - while((UART16550_READ(UART_LSR) & 0x1) == 0); - return UART16550_READ(UART_RX); -} - - -int putDebugChar(uint8 byte) -{ -// int i; - - if (!remoteDebugInitialized) { - remoteDebugInitialized = 1; - debugInit(UART16550_BAUD_115200, - UART16550_DATA_8BIT, - UART16550_PARITY_NONE, - UART16550_STOP_1BIT); - } - - while ((UART16550_READ(UART_LSR)&0x40) == 0); - UART16550_WRITE(UART_TX, byte); - //for (i=0;i<0xfff;i++); - - return 1; -} - -#endif |
