1 /* 2 * arch/m32r/boot/compressed/m32r_sio.c 3 * 4 * 2003-02-12: Takeo Takahashi 5 * 2006-11-30: OPSPUT support by Kazuhiro Inaoka 6 * 7 */ 8 9 #include <asm/processor.h> 10 11 static void m32r_putc(char c); 12 puts(const char * s)13static int puts(const char *s) 14 { 15 char c; 16 while ((c = *s++)) 17 m32r_putc(c); 18 return 0; 19 } 20 21 #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT) 22 #include <asm/m32r.h> 23 #include <asm/io.h> 24 25 #define USE_FPGA_MAP 0 26 27 #if USE_FPGA_MAP 28 /* 29 * fpga configuration program uses MMU, and define map as same as 30 * M32104 uT-Engine board. 31 */ 32 #define BOOT_SIO0STS (volatile unsigned short *)(0x02c00000 + 0x20006) 33 #define BOOT_SIO0TXB (volatile unsigned short *)(0x02c00000 + 0x2000c) 34 #else 35 #undef PLD_BASE 36 #if defined(CONFIG_PLAT_OPSPUT) 37 #define PLD_BASE 0x1cc00000 38 #else 39 #define PLD_BASE 0xa4c00000 40 #endif 41 #define BOOT_SIO0STS PLD_ESIO0STS 42 #define BOOT_SIO0TXB PLD_ESIO0TXB 43 #endif 44 m32r_putc(char c)45static void m32r_putc(char c) 46 { 47 while ((*BOOT_SIO0STS & 0x3) != 0x3) 48 cpu_relax(); 49 if (c == '\n') { 50 *BOOT_SIO0TXB = '\r'; 51 while ((*BOOT_SIO0STS & 0x3) != 0x3) 52 cpu_relax(); 53 } 54 *BOOT_SIO0TXB = c; 55 } 56 #else /* !(CONFIG_PLAT_M32700UT) */ 57 #if defined(CONFIG_PLAT_MAPPI2) 58 #define SIO0STS (volatile unsigned short *)(0xa0efd000 + 14) 59 #define SIO0TXB (volatile unsigned short *)(0xa0efd000 + 30) 60 #else 61 #define SIO0STS (volatile unsigned short *)(0x00efd000 + 14) 62 #define SIO0TXB (volatile unsigned short *)(0x00efd000 + 30) 63 #endif 64 m32r_putc(char c)65static void m32r_putc(char c) 66 { 67 while ((*SIO0STS & 0x1) == 0) 68 cpu_relax(); 69 if (c == '\n') { 70 *SIO0TXB = '\r'; 71 while ((*SIO0STS & 0x1) == 0) 72 cpu_relax(); 73 } 74 *SIO0TXB = c; 75 } 76 #endif 77