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MIPS: Octeon: Serial port fixes for OCTEON simulator.

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For the simulator, fake a slow clock to get fast output.

In prom_putchar we have to mask the value so the simulator doesn't
ASSERT when printing non-ASCII characters.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1255/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney 2010-05-19 14:16:32 -07:00 committed by Ralf Baechle
parent 1dd5216e80
commit 606c958e28
2 changed files with 6 additions and 2 deletions
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6
arch/mips/cavium-octeon/serial.c
View File

@ -65,7 +65,11 @@ static void __init octeon_uart_set_common(struct plat_serial8250_port *p)
p->type = PORT_OCTEON;
p->iotype = UPIO_MEM;
p->regshift = 3; /* I/O addresses are every 8 bytes */
p->uartclk = mips_hpt_frequency;
if (octeon_is_simulation())
/* Make simulator output fast*/
p->uartclk = 115200 * 16;
else
p->uartclk = mips_hpt_frequency;
p->serial_in = octeon_serial_in;
p->serial_out = octeon_serial_out;
}

2
arch/mips/cavium-octeon/setup.c
View File

@ -702,7 +702,7 @@ int prom_putchar(char c)
} while ((lsrval & 0x20) == 0);
/* Write the byte */
cvmx_write_csr(CVMX_MIO_UARTX_THR(octeon_uart), c);
cvmx_write_csr(CVMX_MIO_UARTX_THR(octeon_uart), c & 0xffull);
return 1;
}