diff options
Diffstat (limited to 'arch/sh64/kernel/early_printk.c')
| -rw-r--r-- | arch/sh64/kernel/early_printk.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/arch/sh64/kernel/early_printk.c b/arch/sh64/kernel/early_printk.c deleted file mode 100644 index 4f913112367..00000000000 --- a/arch/sh64/kernel/early_printk.c +++ /dev/null | |||
| @@ -1,99 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * arch/sh64/kernel/early_printk.c | ||
| 3 | * | ||
| 4 | * SH-5 Early SCIF console (cloned and hacked from sh implementation) | ||
| 5 | * | ||
| 6 | * Copyright (C) 2003, 2004 Paul Mundt <lethal@linux-sh.org> | ||
| 7 | * Copyright (C) 2002 M. R. Brown <mrbrown@0xd6.org> | ||
| 8 | * | ||
| 9 | * This file is subject to the terms and conditions of the GNU General Public | ||
| 10 | * License. See the file "COPYING" in the main directory of this archive | ||
| 11 | * for more details. | ||
| 12 | */ | ||
| 13 | #include <linux/console.h> | ||
| 14 | #include <linux/tty.h> | ||
| 15 | #include <linux/init.h> | ||
| 16 | #include <asm/io.h> | ||
| 17 | #include <asm/hardware.h> | ||
| 18 | |||
| 19 | #define SCIF_BASE_ADDR 0x01030000 | ||
| 20 | #define SCIF_ADDR_SH5 PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR | ||
| 21 | |||
| 22 | /* | ||
| 23 | * Fixed virtual address where SCIF is mapped (should already be done | ||
| 24 | * in arch/sh64/kernel/head.S!). | ||
| 25 | */ | ||
| 26 | #define SCIF_REG 0xfa030000 | ||
| 27 | |||
| 28 | enum { | ||
| 29 | SCIF_SCSMR2 = SCIF_REG + 0x00, | ||
| 30 | SCIF_SCBRR2 = SCIF_REG + 0x04, | ||
| 31 | SCIF_SCSCR2 = SCIF_REG + 0x08, | ||
| 32 | SCIF_SCFTDR2 = SCIF_REG + 0x0c, | ||
| 33 | SCIF_SCFSR2 = SCIF_REG + 0x10, | ||
| 34 | SCIF_SCFRDR2 = SCIF_REG + 0x14, | ||
| 35 | SCIF_SCFCR2 = SCIF_REG + 0x18, | ||
| 36 | SCIF_SCFDR2 = SCIF_REG + 0x1c, | ||
| 37 | SCIF_SCSPTR2 = SCIF_REG + 0x20, | ||
| 38 | SCIF_SCLSR2 = SCIF_REG + 0x24, | ||
| 39 | }; | ||
| 40 | |||
| 41 | static void sh_console_putc(int c) | ||
| 42 | { | ||
| 43 | while (!(ctrl_inw(SCIF_SCFSR2) & 0x20)) | ||
| 44 | cpu_relax(); | ||
| 45 | |||
| 46 | ctrl_outb(c, SCIF_SCFTDR2); | ||
| 47 | ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0x9f), SCIF_SCFSR2); | ||
| 48 | |||
| 49 | if (c == '\n') | ||
| 50 | sh_console_putc('\r'); | ||
| 51 | } | ||
| 52 | |||
| 53 | static void sh_console_flush(void) | ||
| 54 | { | ||
| 55 | ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0xbf), SCIF_SCFSR2); | ||
| 56 | |||
| 57 | while (!(ctrl_inw(SCIF_SCFSR2) & 0x40)) | ||
| 58 | cpu_relax(); | ||
| 59 | |||
| 60 | ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0xbf), SCIF_SCFSR2); | ||
| 61 | } | ||
| 62 | |||
| 63 | static void sh_console_write(struct console *con, const char *s, unsigned count) | ||
| 64 | { | ||
| 65 | while (count-- > 0) | ||
| 66 | sh_console_putc(*s++); | ||
| 67 | |||
| 68 | sh_console_flush(); | ||
| 69 | } | ||
| 70 | |||
| 71 | static int __init sh_console_setup(struct console *con, char *options) | ||
| 72 | { | ||
| 73 | con->cflag = CREAD | HUPCL | CLOCAL | B19200 | CS8; | ||
| 74 | |||
| 75 | return 0; | ||
| 76 | } | ||
| 77 | |||
| 78 | static struct console sh_console = { | ||
| 79 | .name = "scifcon", | ||
| 80 | .write = sh_console_write, | ||
| 81 | .setup = sh_console_setup, | ||
| 82 | .flags = CON_PRINTBUFFER | CON_BOOT, | ||
| 83 | .index = -1, | ||
| 84 | }; | ||
| 85 | |||
| 86 | void __init enable_early_printk(void) | ||
| 87 | { | ||
| 88 | ctrl_outb(0x2a, SCIF_SCBRR2); /* 19200bps */ | ||
| 89 | |||
| 90 | ctrl_outw(0x04, SCIF_SCFCR2); /* Reset TFRST */ | ||
| 91 | ctrl_outw(0x10, SCIF_SCFCR2); /* TTRG0=1 */ | ||
| 92 | |||
| 93 | ctrl_outw(0, SCIF_SCSPTR2); | ||
| 94 | ctrl_outw(0x60, SCIF_SCFSR2); | ||
| 95 | ctrl_outw(0, SCIF_SCLSR2); | ||
| 96 | ctrl_outw(0x30, SCIF_SCSCR2); | ||
| 97 | |||
| 98 | register_console(&sh_console); | ||
| 99 | } | ||