diff options
Diffstat (limited to 'arch/mips/mti-sead3/sead3-display.c')
-rw-r--r-- | arch/mips/mti-sead3/sead3-display.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/arch/mips/mti-sead3/sead3-display.c b/arch/mips/mti-sead3/sead3-display.c deleted file mode 100644 index 94875991907b..000000000000 --- a/arch/mips/mti-sead3/sead3-display.c +++ /dev/null @@ -1,77 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. - */ -#include <linux/timer.h> -#include <linux/io.h> -#include <asm/mips-boards/generic.h> - -static unsigned int display_count; -static unsigned int max_display_count; - -#define LCD_DISPLAY_POS_BASE 0x1f000400 -#define DISPLAY_LCDINSTRUCTION (0*2) -#define DISPLAY_LCDDATA (1*2) -#define DISPLAY_CPLDSTATUS (2*2) -#define DISPLAY_CPLDDATA (3*2) -#define LCD_SETDDRAM 0x80 -#define LCD_IR_BF 0x80 - -const char display_string[] = " LINUX ON SEAD3 "; - -static void scroll_display_message(unsigned long data); -static DEFINE_TIMER(mips_scroll_timer, scroll_display_message, HZ, 0); - -static void lcd_wait(unsigned int __iomem *display) -{ - /* Wait for CPLD state machine to become idle. */ - do { } while (__raw_readl(display + DISPLAY_CPLDSTATUS) & 1); - - do { - __raw_readl(display + DISPLAY_LCDINSTRUCTION); - - /* Wait for CPLD state machine to become idle. */ - do { } while (__raw_readl(display + DISPLAY_CPLDSTATUS) & 1); - } while (__raw_readl(display + DISPLAY_CPLDDATA) & LCD_IR_BF); -} - -void mips_display_message(const char *str) -{ - static unsigned int __iomem *display; - char ch; - int i; - - if (unlikely(display == NULL)) - display = ioremap_nocache(LCD_DISPLAY_POS_BASE, - (8 * sizeof(int))); - - for (i = 0; i < 16; i++) { - if (*str) - ch = *str++; - else - ch = ' '; - lcd_wait(display); - __raw_writel((LCD_SETDDRAM | i), - (display + DISPLAY_LCDINSTRUCTION)); - lcd_wait(display); - __raw_writel(ch, display + DISPLAY_LCDDATA); - } -} - -static void scroll_display_message(unsigned long data) -{ - mips_display_message(&display_string[display_count++]); - if (display_count == max_display_count) - display_count = 0; - mod_timer(&mips_scroll_timer, jiffies + HZ); -} - -void mips_scroll_message(void) -{ - del_timer_sync(&mips_scroll_timer); - max_display_count = strlen(display_string) + 1 - 16; - mod_timer(&mips_scroll_timer, jiffies + 1); -} |