diff options
Diffstat (limited to 'arch/mips/au1000/common/clocks.c')
-rw-r--r-- | arch/mips/au1000/common/clocks.c | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/arch/mips/au1000/common/clocks.c b/arch/mips/au1000/common/clocks.c deleted file mode 100644 index 043429d17c5f..000000000000 --- a/arch/mips/au1000/common/clocks.c +++ /dev/null @@ -1,93 +0,0 @@ -/* - * BRIEF MODULE DESCRIPTION - * Simple Au1xx0 clocks routines. - * - * Copyright 2001, 2008 MontaVista Software Inc. - * Author: MontaVista Software, Inc. <source@mvista.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/module.h> -#include <asm/mach-au1x00/au1000.h> - -static unsigned int au1x00_clock; /* Hz */ -static unsigned int lcd_clock; /* KHz */ -static unsigned long uart_baud_base; - -/* - * Set the au1000_clock - */ -void set_au1x00_speed(unsigned int new_freq) -{ - au1x00_clock = new_freq; -} - -unsigned int get_au1x00_speed(void) -{ - return au1x00_clock; -} -EXPORT_SYMBOL(get_au1x00_speed); - -/* - * The UART baud base is not known at compile time ... if - * we want to be able to use the same code on different - * speed CPUs. - */ -unsigned long get_au1x00_uart_baud_base(void) -{ - return uart_baud_base; -} - -void set_au1x00_uart_baud_base(unsigned long new_baud_base) -{ - uart_baud_base = new_baud_base; -} - -/* - * Calculate the Au1x00's LCD clock based on the current - * cpu clock and the system bus clock, and try to keep it - * below 40 MHz (the Pb1000 board can lock-up if the LCD - * clock is over 40 MHz). - */ -void set_au1x00_lcd_clock(void) -{ - unsigned int static_cfg0; - unsigned int sys_busclk = (get_au1x00_speed() / 1000) / - ((int)(au_readl(SYS_POWERCTRL) & 0x03) + 2); - - static_cfg0 = au_readl(MEM_STCFG0); - - if (static_cfg0 & (1 << 11)) - lcd_clock = sys_busclk / 5; /* note: BCLK switching fails with D5 */ - else - lcd_clock = sys_busclk / 4; - - if (lcd_clock > 50000) /* Epson MAX */ - printk(KERN_WARNING "warning: LCD clock too high (%u KHz)\n", - lcd_clock); -} - -unsigned int get_au1x00_lcd_clock(void) -{ - return lcd_clock; -} -EXPORT_SYMBOL(get_au1x00_lcd_clock); |