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| author | Magnus Damm <magnus.damm@gmail.com> | 2008-04-23 21:16:06 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-05-08 19:51:54 +0900 |
| commit | 191d4437b9c028afee1a0568d9c7e6e0b264c703 (patch) | |
| tree | 10e3a01b6a7a0cb35a8ec99d8b6b3cf8021f0bd6 /arch/sh | |
| parent | 4a65e3827bcff072e5f4a96b3f73f9f17eb7d6d8 (diff) | |
| download | linux-191d4437b9c028afee1a0568d9c7e6e0b264c703.tar.gz linux-191d4437b9c028afee1a0568d9c7e6e0b264c703.tar.bz2 linux-191d4437b9c028afee1a0568d9c7e6e0b264c703.zip | |
sh: reset hardware from early printk
Reset the transmitter and receiver when setting up early printk.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/kernel/early_printk.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/sh/kernel/early_printk.c b/arch/sh/kernel/early_printk.c index 11b4c85999b7..6b7d166694e2 100644 --- a/arch/sh/kernel/early_printk.c +++ b/arch/sh/kernel/early_printk.c @@ -167,6 +167,7 @@ static void scif_sercon_init(char *s) } while (!(status & SCxSR_TEND(port))); sci_out(port, SCSCR, 0); /* TE=0, RE=0 */ + sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST); sci_out(port, SCSMR, 0); /* Set baud rate */ @@ -174,12 +175,11 @@ static void scif_sercon_init(char *s) (32 * baud) - 1); udelay((1000000+(baud-1)) / baud); /* Wait one bit interval */ - sci_out(port, SCFCR, 12); - sci_out(port, SCFCR, 8); - sci_out(port, SCSPTR, 0); sci_out(port, SCxSR, 0x60); sci_out(port, SCLSR, 0); + + sci_out(port, SCFCR, 0); sci_out(port, SCSCR, 0x30); /* TE=1, RE=1 */ } #endif /* defined(CONFIG_CPU_SUBTYPE_SH7720) */ |