3 * Debug routines which directly access the uart.
6 #include <linux/types.h>
7 #include <asm/gt64120.h>
10 //#define SERIAL_BASE EV96100_UART0_REGS_BASE
11 #define SERIAL_BASE 0xBD000020
12 #define NS16550_BASE SERIAL_BASE
15 #define SERA_DATA 0x08
16 //#define SERB_CMD 0x05
18 #define SERB_DATA 0x00
21 #define TIMEOUT 0xffff
24 static const char digits[16] = "0123456789abcdef";
25 static volatile unsigned char *const com1 = (unsigned char *) SERIAL_BASE;
29 static inline void slow_down()
32 for (k = 0; k < 10000; k++);
38 void putch(const unsigned char c)
50 } while (0 == (ch & TX_BUSY));
54 void putchar(const unsigned char c)
66 } while (0 == (ch & TX_BUSY));
70 void puts(unsigned char *cp)
83 } while (0 == (ch & TX_BUSY));
84 com1[SERB_DATA] = *cp++;
90 void fputs(unsigned char *cp)
104 } while (0 == (ch & TX_BUSY));
105 com1[SERB_DATA] = *cp++;
110 void put64(uint64_t ul)
115 cnt = 16; /* 16 nibbles in a 64 bit long */
120 ch = (unsigned char) (ul >> cnt * 4) & 0x0F;
125 void put32(unsigned u)
130 cnt = 8; /* 8 nibbles in a 32 bit long */
135 ch = (unsigned char) (u >> cnt * 4) & 0x0F;