diff options
Diffstat (limited to 'arch/mips/ite-boards/generic/dbg_io.c')
-rw-r--r-- | arch/mips/ite-boards/generic/dbg_io.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/arch/mips/ite-boards/generic/dbg_io.c b/arch/mips/ite-boards/generic/dbg_io.c deleted file mode 100644 index 8e9cd8a9670..00000000000 --- a/arch/mips/ite-boards/generic/dbg_io.c +++ /dev/null @@ -1,124 +0,0 @@ - - -#ifdef CONFIG_KGDB - -/* --- CONFIG --- */ - -/* we need uint32 uint8 */ -/* #include "types.h" */ -typedef unsigned char uint8; -typedef unsigned int uint32; - -/* --- END OF CONFIG --- */ - -#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 - -/* ----------------------------------------------------- */ - -/* === CONFIG === */ - -/* [stevel] we use the IT8712 serial port for kgdb */ -#define DEBUG_BASE 0xB40003F8 /* 8712 serial port 1 base address */ -#define MAX_BAUD 115200 - -/* === END OF CONFIG === */ - -/* register offset */ -#define OFS_RCV_BUFFER 0 -#define OFS_TRANS_HOLD 0 -#define OFS_SEND_BUFFER 0 -#define OFS_INTR_ENABLE 1 -#define OFS_INTR_ID 2 -#define OFS_DATA_FORMAT 3 -#define OFS_LINE_CONTROL 3 -#define OFS_MODEM_CONTROL 4 -#define OFS_RS232_OUTPUT 4 -#define OFS_LINE_STATUS 5 -#define OFS_MODEM_STATUS 6 -#define OFS_RS232_INPUT 6 -#define OFS_SCRATCH_PAD 7 - -#define OFS_DIVISOR_LSB 0 -#define OFS_DIVISOR_MSB 1 - - -/* memory-mapped read/write of the port */ -#define UART16550_READ(y) (*((volatile uint8*)(DEBUG_BASE + y))) -#define UART16550_WRITE(y,z) ((*((volatile uint8*)(DEBUG_BASE + y))) = z) - -void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) -{ - /* disable interrupts */ - UART16550_WRITE(OFS_INTR_ENABLE, 0); - - /* set up baud rate */ - { - uint32 divisor; - - /* set DIAB bit */ - UART16550_WRITE(OFS_LINE_CONTROL, 0x80); - - /* set divisor */ - divisor = MAX_BAUD / baud; - UART16550_WRITE(OFS_DIVISOR_LSB, divisor & 0xff); - UART16550_WRITE(OFS_DIVISOR_MSB, (divisor & 0xff00) >> 8); - - /* clear DIAB bit */ - UART16550_WRITE(OFS_LINE_CONTROL, 0x0); - } - - /* set data format */ - UART16550_WRITE(OFS_DATA_FORMAT, 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(OFS_LINE_STATUS) & 0x1) == 0); - return UART16550_READ(OFS_RCV_BUFFER); -} - - -int putDebugChar(uint8 byte) -{ - if (!remoteDebugInitialized) { - remoteDebugInitialized = 1; - debugInit(UART16550_BAUD_115200, - UART16550_DATA_8BIT, - UART16550_PARITY_NONE, UART16550_STOP_1BIT); - } - - while ((UART16550_READ(OFS_LINE_STATUS) & 0x20) == 0); - UART16550_WRITE(OFS_SEND_BUFFER, byte); - return 1; -} - -#endif |