git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * arch/m32r/boot/compressed/m32r_sio.c | |
| 3 | * | |
| 4 | * 2003-02-12: Takeo Takahashi | |
| d93f7de8 | 5 | * 2006-11-30: OPSPUT support by Kazuhiro Inaoka |
| 1da177e4 LT |
6 | * |
| 7 | */ | |
| 8 | ||
| 23680863 | 9 | #include <asm/processor.h> |
| 1da177e4 LT |
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 | ||
| 7852375b | 20 | #if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT) |
| 1da177e4 LT |
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 | |
| d93f7de8 HT |
35 | #if defined(CONFIG_PLAT_OPSPUT) |
| 36 | #define PLD_BASE 0x1cc00000 | |
| 37 | #else | |
| 1da177e4 | 38 | #define PLD_BASE 0xa4c00000 |
| d93f7de8 | 39 | #endif |
| 1da177e4 LT |
40 | #define BOOT_SIO0STS PLD_ESIO0STS |
| 41 | #define BOOT_SIO0TXB PLD_ESIO0TXB | |
| 42 | #endif | |
| 43 | ||
| 44 | static void putc(char c) | |
| 45 | { | |
| 23680863 HT |
46 | while ((*BOOT_SIO0STS & 0x3) != 0x3) |
| 47 | cpu_relax(); | |
| 1da177e4 LT |
48 | if (c == '\n') { |
| 49 | *BOOT_SIO0TXB = '\r'; | |
| 23680863 HT |
50 | while ((*BOOT_SIO0STS & 0x3) != 0x3) |
| 51 | cpu_relax(); | |
| 1da177e4 LT |
52 | } |
| 53 | *BOOT_SIO0TXB = c; | |
| 54 | } | |
| 7852375b | 55 | #else /* !(CONFIG_PLAT_M32700UT) */ |
| 23680863 | 56 | #if defined(CONFIG_PLAT_MAPPI2) |
| 1da177e4 LT |
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 | { | |
| 23680863 HT |
66 | while ((*SIO0STS & 0x1) == 0) |
| 67 | cpu_relax(); | |
| 1da177e4 LT |
68 | if (c == '\n') { |
| 69 | *SIO0TXB = '\r'; | |
| 23680863 HT |
70 | while ((*SIO0STS & 0x1) == 0) |
| 71 | cpu_relax(); | |
| 1da177e4 LT |
72 | } |
| 73 | *SIO0TXB = c; | |
| 74 | } | |
| 75 | #endif |