diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ppc/syslib/mv64x60_dbg.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/ppc/syslib/mv64x60_dbg.c')
-rw-r--r-- | arch/ppc/syslib/mv64x60_dbg.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/arch/ppc/syslib/mv64x60_dbg.c b/arch/ppc/syslib/mv64x60_dbg.c new file mode 100644 index 00000000000..2927c7adf5e --- /dev/null +++ b/arch/ppc/syslib/mv64x60_dbg.c @@ -0,0 +1,123 @@ +/* + * arch/ppc/syslib/mv64x60_dbg.c + * + * KGDB and progress routines for the Marvell/Galileo MV64x60 (Discovery). + * + * Author: Mark A. Greer <mgreer@mvista.com> + * + * 2003 (c) MontaVista Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ + +/* + ***************************************************************************** + * + * Low-level MPSC/UART I/O routines + * + ***************************************************************************** + */ + + +#include <linux/config.h> +#include <linux/irq.h> +#include <asm/delay.h> +#include <asm/mv64x60.h> + + +#if defined(CONFIG_SERIAL_TEXT_DEBUG) + +#define MPSC_CHR_1 0x000c +#define MPSC_CHR_2 0x0010 + +static struct mv64x60_handle mv64x60_dbg_bh; + +void +mv64x60_progress_init(u32 base) +{ + mv64x60_dbg_bh.v_base = base; + return; +} + +static void +mv64x60_polled_putc(int chan, char c) +{ + u32 offset; + + if (chan == 0) + offset = 0x8000; + else + offset = 0x9000; + + mv64x60_write(&mv64x60_dbg_bh, offset + MPSC_CHR_1, (u32)c); + mv64x60_write(&mv64x60_dbg_bh, offset + MPSC_CHR_2, 0x200); + udelay(2000); +} + +void +mv64x60_mpsc_progress(char *s, unsigned short hex) +{ + volatile char c; + + mv64x60_polled_putc(0, '\r'); + + while ((c = *s++) != 0) + mv64x60_polled_putc(0, c); + + mv64x60_polled_putc(0, '\n'); + mv64x60_polled_putc(0, '\r'); + + return; +} +#endif /* CONFIG_SERIAL_TEXT_DEBUG */ + + +#if defined(CONFIG_KGDB) + +#if defined(CONFIG_KGDB_TTYS0) +#define KGDB_PORT 0 +#elif defined(CONFIG_KGDB_TTYS1) +#define KGDB_PORT 1 +#else +#error "Invalid kgdb_tty port" +#endif + +void +putDebugChar(unsigned char c) +{ + mv64x60_polled_putc(KGDB_PORT, (char)c); +} + +int +getDebugChar(void) +{ + unsigned char c; + + while (!mv64x60_polled_getc(KGDB_PORT, &c)); + return (int)c; +} + +void +putDebugString(char* str) +{ + while (*str != '\0') { + putDebugChar(*str); + str++; + } + putDebugChar('\r'); + return; +} + +void +kgdb_interruptible(int enable) +{ +} + +void +kgdb_map_scc(void) +{ + if (ppc_md.early_serial_map) + ppc_md.early_serial_map(); +} +#endif /* CONFIG_KGDB */ |