projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 1da177e4 LT |
2 | * KGDB and progress routines for the Marvell/Galileo MV64x60 (Discovery). |
| 3 | * | |
| 4 | * Author: Mark A. Greer <mgreer@mvista.com> | |
| 5 | * | |
| 6 | * 2003 (c) MontaVista Software, Inc. This file is licensed under | |
| 7 | * the terms of the GNU General Public License version 2. This program | |
| 8 | * is licensed "as is" without any warranty of any kind, whether express | |
| 9 | * or implied. | |
| 10 | */ | |
| 11 | ||
| 12 | /* | |
| 13 | ***************************************************************************** | |
| 14 | * | |
| 15 | * Low-level MPSC/UART I/O routines | |
| 16 | * | |
| 17 | ***************************************************************************** | |
| 18 | */ | |
| 19 | ||
| 20 | ||
| 21 | #include <linux/config.h> | |
| 22 | #include <linux/irq.h> | |
| 23 | #include <asm/delay.h> | |
| 24 | #include <asm/mv64x60.h> | |
| fd582ec8 | 25 | #include <asm/machdep.h> |
| 1da177e4 LT |
26 | |
| 27 | ||
| 28 | #if defined(CONFIG_SERIAL_TEXT_DEBUG) | |
| 29 | ||
| 30 | #define MPSC_CHR_1 0x000c | |
| 31 | #define MPSC_CHR_2 0x0010 | |
| 32 | ||
| 33 | static struct mv64x60_handle mv64x60_dbg_bh; | |
| 34 | ||
| 35 | void | |
| 36 | mv64x60_progress_init(u32 base) | |
| 37 | { | |
| 38 | mv64x60_dbg_bh.v_base = base; | |
| 39 | return; | |
| 40 | } | |
| 41 | ||
| 42 | static void | |
| 43 | mv64x60_polled_putc(int chan, char c) | |
| 44 | { | |
| 45 | u32 offset; | |
| 46 | ||
| 47 | if (chan == 0) | |
| 48 | offset = 0x8000; | |
| 49 | else | |
| 50 | offset = 0x9000; | |
| 51 | ||
| 52 | mv64x60_write(&mv64x60_dbg_bh, offset + MPSC_CHR_1, (u32)c); | |
| 53 | mv64x60_write(&mv64x60_dbg_bh, offset + MPSC_CHR_2, 0x200); | |
| 54 | udelay(2000); | |
| 55 | } | |
| 56 | ||
| 57 | void | |
| 58 | mv64x60_mpsc_progress(char *s, unsigned short hex) | |
| 59 | { | |
| 60 | volatile char c; | |
| 61 | ||
| 62 | mv64x60_polled_putc(0, '\r'); | |
| 63 | ||
| 64 | while ((c = *s++) != 0) | |
| 65 | mv64x60_polled_putc(0, c); | |
| 66 | ||
| 67 | mv64x60_polled_putc(0, '\n'); | |
| 68 | mv64x60_polled_putc(0, '\r'); | |
| 69 | ||
| 70 | return; | |
| 71 | } | |
| 72 | #endif /* CONFIG_SERIAL_TEXT_DEBUG */ | |
| 73 | ||
| 74 | ||
| 75 | #if defined(CONFIG_KGDB) | |
| 76 | ||
| 77 | #if defined(CONFIG_KGDB_TTYS0) | |
| 78 | #define KGDB_PORT 0 | |
| 79 | #elif defined(CONFIG_KGDB_TTYS1) | |
| 80 | #define KGDB_PORT 1 | |
| 81 | #else | |
| 82 | #error "Invalid kgdb_tty port" | |
| 83 | #endif | |
| 84 | ||
| 85 | void | |
| 86 | putDebugChar(unsigned char c) | |
| 87 | { | |
| 88 | mv64x60_polled_putc(KGDB_PORT, (char)c); | |
| 89 | } | |
| 90 | ||
| 91 | int | |
| 92 | getDebugChar(void) | |
| 93 | { | |
| 94 | unsigned char c; | |
| 95 | ||
| 96 | while (!mv64x60_polled_getc(KGDB_PORT, &c)); | |
| 97 | return (int)c; | |
| 98 | } | |
| 99 | ||
| 100 | void | |
| 101 | putDebugString(char* str) | |
| 102 | { | |
| 103 | while (*str != '\0') { | |
| 104 | putDebugChar(*str); | |
| 105 | str++; | |
| 106 | } | |
| 107 | putDebugChar('\r'); | |
| 108 | return; | |
| 109 | } | |
| 110 | ||
| 111 | void | |
| 112 | kgdb_interruptible(int enable) | |
| 113 | { | |
| 114 | } | |
| 115 | ||
| 116 | void | |
| 117 | kgdb_map_scc(void) | |
| 118 | { | |
| 119 | if (ppc_md.early_serial_map) | |
| 120 | ppc_md.early_serial_map(); | |
| 121 | } | |
| 122 | #endif /* CONFIG_KGDB */ |