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Diffstat (limited to 'arch/sh/kernel/early_printk.c')
-rw-r--r--arch/sh/kernel/early_printk.c157
1 files changed, 1 insertions, 156 deletions
diff --git a/arch/sh/kernel/early_printk.c b/arch/sh/kernel/early_printk.c
index 81a46145ffa..f8bb50c6e05 100644
--- a/arch/sh/kernel/early_printk.c
+++ b/arch/sh/kernel/early_printk.c
@@ -15,7 +15,6 @@
#include <linux/io.h>
#include <linux/delay.h>
-#ifdef CONFIG_SH_STANDARD_BIOS
#include <asm/sh_bios.h>
/*
@@ -57,149 +56,8 @@ static struct console bios_console = {
.flags = CON_PRINTBUFFER,
.index = -1,
};
-#endif
-#ifdef CONFIG_EARLY_SCIF_CONSOLE
-#include <linux/serial_core.h>
-#include "../../../drivers/serial/sh-sci.h"
-
-#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
- defined(CONFIG_CPU_SUBTYPE_SH7721)
-#define EPK_SCSMR_VALUE 0x000
-#define EPK_SCBRR_VALUE 0x00C
-#define EPK_FIFO_SIZE 64
-#define EPK_FIFO_BITS (0x7f00 >> 8)
-#else
-#define EPK_FIFO_SIZE 16
-#define EPK_FIFO_BITS (0x1f00 >> 8)
-#endif
-
-static struct uart_port scif_port = {
- .type = PORT_SCIF,
- .mapbase = CONFIG_EARLY_SCIF_CONSOLE_PORT,
- .membase = (char __iomem *)CONFIG_EARLY_SCIF_CONSOLE_PORT,
-};
-
-static void scif_sercon_putc(int c)
-{
- while (((sci_in(&scif_port, SCFDR) & EPK_FIFO_BITS) >= EPK_FIFO_SIZE))
- ;
-
- sci_in(&scif_port, SCxSR);
- sci_out(&scif_port, SCxSR, 0xf3 & ~(0x20 | 0x40));
- sci_out(&scif_port, SCxTDR, c);
-
- while ((sci_in(&scif_port, SCxSR) & 0x40) == 0)
- ;
-
- if (c == '\n')
- scif_sercon_putc('\r');
-}
-
-static void scif_sercon_write(struct console *con, const char *s,
- unsigned count)
-{
- while (count-- > 0)
- scif_sercon_putc(*s++);
-}
-
-static int __init scif_sercon_setup(struct console *con, char *options)
-{
- con->cflag = CREAD | HUPCL | CLOCAL | B115200 | CS8;
-
- return 0;
-}
-
-static struct console scif_console = {
- .name = "sercon",
- .write = scif_sercon_write,
- .setup = scif_sercon_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-#if !defined(CONFIG_SH_STANDARD_BIOS)
-#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
- defined(CONFIG_CPU_SUBTYPE_SH7721)
-static void scif_sercon_init(char *s)
-{
- sci_out(&scif_port, SCSCR, 0x0000); /* clear TE and RE */
- sci_out(&scif_port, SCFCR, 0x4006); /* reset */
- sci_out(&scif_port, SCSCR, 0x0000); /* select internal clock */
- sci_out(&scif_port, SCSMR, EPK_SCSMR_VALUE);
- sci_out(&scif_port, SCBRR, EPK_SCBRR_VALUE);
-
- mdelay(1); /* wait 1-bit time */
-
- sci_out(&scif_port, SCFCR, 0x0030); /* TTRG=b'11 */
- sci_out(&scif_port, SCSCR, 0x0030); /* TE, RE */
-}
-#elif defined(CONFIG_CPU_SH4) || defined(CONFIG_CPU_SH3)
-#define DEFAULT_BAUD 115200
-/*
- * Simple SCIF init, primarily aimed at SH7750 and other similar SH-4
- * devices that aren't using sh-ipl+g.
- */
-static void scif_sercon_init(char *s)
-{
- struct uart_port *port = &scif_port;
- unsigned baud = DEFAULT_BAUD;
- unsigned int status;
- char *e;
-
- if (*s == ',')
- ++s;
-
- if (*s) {
- /* ignore ioport/device name */
- s += strcspn(s, ",");
- if (*s == ',')
- s++;
- }
-
- if (*s) {
- baud = simple_strtoul(s, &e, 0);
- if (baud == 0 || s == e)
- baud = DEFAULT_BAUD;
- }
-
- do {
- status = sci_in(port, SCxSR);
- } 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 */
- sci_out(port, SCBRR, (CONFIG_SH_PCLK_FREQ + 16 * baud) /
- (32 * baud) - 1);
- udelay((1000000+(baud-1)) / baud); /* Wait one bit interval */
-
- 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) */
-#endif /* !defined(CONFIG_SH_STANDARD_BIOS) */
-#endif /* CONFIG_EARLY_SCIF_CONSOLE */
-
-/*
- * Setup a default console, if more than one is compiled in, rely on the
- * earlyprintk= parsing to give priority.
- */
-static struct console *early_console =
-#ifdef CONFIG_SH_STANDARD_BIOS
- &bios_console
-#elif defined(CONFIG_EARLY_SCIF_CONSOLE)
- &scif_console
-#else
- NULL
-#endif
- ;
+static struct console *early_console;
static int __init setup_early_printk(char *buf)
{
@@ -211,21 +69,8 @@ static int __init setup_early_printk(char *buf)
if (strstr(buf, "keep"))
keep_early = 1;
-#ifdef CONFIG_SH_STANDARD_BIOS
if (!strncmp(buf, "bios", 4))
early_console = &bios_console;
-#endif
-#if defined(CONFIG_EARLY_SCIF_CONSOLE)
- if (!strncmp(buf, "serial", 6)) {
- early_console = &scif_console;
-
-#if !defined(CONFIG_SH_STANDARD_BIOS)
-#if defined(CONFIG_CPU_SH4) || defined(CONFIG_CPU_SH3)
- scif_sercon_init(buf + 6);
-#endif
-#endif
- }
-#endif
if (likely(early_console)) {
if (keep_early)