Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * arch/m32r/boot/compressed/m32r_sio.c |
| 3 | * |
| 4 | * 2003-02-12: Takeo Takahashi |
Hirokazu Takata | d93f7de | 2006-12-08 02:35:57 -0800 | [diff] [blame] | 5 | * 2006-11-30: OPSPUT support by Kazuhiro Inaoka |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * |
| 7 | */ |
| 8 | |
Hirokazu Takata | 2368086 | 2005-06-21 17:16:10 -0700 | [diff] [blame] | 9 | #include <asm/processor.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | |
| 11 | static void putc(char c); |
| 12 | |
| 13 | static int puts(const char *s) |
| 14 | { |
| 15 | char c; |
| 16 | while ((c = *s++)) putc(c); |
| 17 | return 0; |
| 18 | } |
| 19 | |
Jiri Olsa | 7852375 | 2008-02-04 22:27:33 -0800 | [diff] [blame] | 20 | #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include <asm/m32r.h> |
| 22 | #include <asm/io.h> |
| 23 | |
| 24 | #define USE_FPGA_MAP 0 |
| 25 | |
| 26 | #if USE_FPGA_MAP |
| 27 | /* |
| 28 | * fpga configuration program uses MMU, and define map as same as |
| 29 | * M32104 uT-Engine board. |
| 30 | */ |
| 31 | #define BOOT_SIO0STS (volatile unsigned short *)(0x02c00000 + 0x20006) |
| 32 | #define BOOT_SIO0TXB (volatile unsigned short *)(0x02c00000 + 0x2000c) |
| 33 | #else |
| 34 | #undef PLD_BASE |
Hirokazu Takata | d93f7de | 2006-12-08 02:35:57 -0800 | [diff] [blame] | 35 | #if defined(CONFIG_PLAT_OPSPUT) |
| 36 | #define PLD_BASE 0x1cc00000 |
| 37 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #define PLD_BASE 0xa4c00000 |
Hirokazu Takata | d93f7de | 2006-12-08 02:35:57 -0800 | [diff] [blame] | 39 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | #define BOOT_SIO0STS PLD_ESIO0STS |
| 41 | #define BOOT_SIO0TXB PLD_ESIO0TXB |
| 42 | #endif |
| 43 | |
| 44 | static void putc(char c) |
| 45 | { |
Hirokazu Takata | 2368086 | 2005-06-21 17:16:10 -0700 | [diff] [blame] | 46 | while ((*BOOT_SIO0STS & 0x3) != 0x3) |
| 47 | cpu_relax(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | if (c == '\n') { |
| 49 | *BOOT_SIO0TXB = '\r'; |
Hirokazu Takata | 2368086 | 2005-06-21 17:16:10 -0700 | [diff] [blame] | 50 | while ((*BOOT_SIO0STS & 0x3) != 0x3) |
| 51 | cpu_relax(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | } |
| 53 | *BOOT_SIO0TXB = c; |
| 54 | } |
Jiri Olsa | 7852375 | 2008-02-04 22:27:33 -0800 | [diff] [blame] | 55 | #else /* !(CONFIG_PLAT_M32700UT) */ |
Hirokazu Takata | 2368086 | 2005-06-21 17:16:10 -0700 | [diff] [blame] | 56 | #if defined(CONFIG_PLAT_MAPPI2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | #define SIO0STS (volatile unsigned short *)(0xa0efd000 + 14) |
| 58 | #define SIO0TXB (volatile unsigned short *)(0xa0efd000 + 30) |
| 59 | #else |
| 60 | #define SIO0STS (volatile unsigned short *)(0x00efd000 + 14) |
| 61 | #define SIO0TXB (volatile unsigned short *)(0x00efd000 + 30) |
| 62 | #endif |
| 63 | |
| 64 | static void putc(char c) |
| 65 | { |
Hirokazu Takata | 2368086 | 2005-06-21 17:16:10 -0700 | [diff] [blame] | 66 | while ((*SIO0STS & 0x1) == 0) |
| 67 | cpu_relax(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | if (c == '\n') { |
| 69 | *SIO0TXB = '\r'; |
Hirokazu Takata | 2368086 | 2005-06-21 17:16:10 -0700 | [diff] [blame] | 70 | while ((*SIO0STS & 0x1) == 0) |
| 71 | cpu_relax(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | } |
| 73 | *SIO0TXB = c; |
| 74 | } |
| 75 | #endif |