- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ppopov@mvista.com or source@mvista.com
+ * Copyright 2001, 2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com>
-#ifdef DEBUG
-# define DPRINTK(fmt, args...) printk("%s: " fmt, __func__, ## args)
+#ifdef DEBUG
+#define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__, ## args)
* either volatile or reset to some state across a processor sleep.
* If reading a register doesn't provide a proper result for a
* later restore, we have to provide a function for loading that
* either volatile or reset to some state across a processor sleep.
* If reading a register doesn't provide a proper result for a
* later restore, we have to provide a function for loading that
* set the TOY timer for the amount of time you want to sleep.
* This is done mainly for testing, but may be useful in other cases.
* The value is number of 32KHz ticks to sleep.
*/
#define SLEEP_TEST_TIMEOUT 1
* set the TOY timer for the amount of time you want to sleep.
* This is done mainly for testing, but may be useful in other cases.
* The value is number of 32KHz ticks to sleep.
*/
#define SLEEP_TEST_TIMEOUT 1
* registered function by the driver......but of course the
* standard serial driver doesn't understand our Au1xxx
* unique registers.
* registered function by the driver......but of course the
* standard serial driver doesn't understand our Au1xxx
* unique registers.
sleep_uart0_clkdiv = au_readl(UART0_ADDR + UART_CLK);
sleep_uart0_enable = au_readl(UART0_ADDR + UART_MOD_CNTRL);
sleep_uart0_clkdiv = au_readl(UART0_ADDR + UART_CLK);
sleep_uart0_enable = au_readl(UART0_ADDR + UART_MOD_CNTRL);
au_writel(0, 0xb0100004); au_sync();
au_writel(0, USB_HOST_CONFIG); au_sync();
sleep_usbdev_enable = au_readl(USBD_ENABLE);
au_writel(0, USBD_ENABLE); au_sync();
au_writel(0, 0xb0100004); au_sync();
au_writel(0, USB_HOST_CONFIG); au_sync();
sleep_usbdev_enable = au_readl(USBD_ENABLE);
au_writel(0, USBD_ENABLE); au_sync();
sleep_static_memctlr[0][0] = au_readl(MEM_STCFG0);
sleep_static_memctlr[0][1] = au_readl(MEM_STTIME0);
sleep_static_memctlr[0][2] = au_readl(MEM_STADDR0);
sleep_static_memctlr[0][0] = au_readl(MEM_STCFG0);
sleep_static_memctlr[0][1] = au_readl(MEM_STTIME0);
sleep_static_memctlr[0][2] = au_readl(MEM_STADDR0);
au_writel(sleep_cpu_pll_cntrl, SYS_CPUPLL); au_sync();
au_writel(sleep_pin_function, SYS_PINFUNC); au_sync();
au_writel(sleep_cpu_pll_cntrl, SYS_CPUPLL); au_sync();
au_writel(sleep_pin_function, SYS_PINFUNC); au_sync();
au_writel(sleep_static_memctlr[0][0], MEM_STCFG0);
au_writel(sleep_static_memctlr[0][1], MEM_STTIME0);
au_writel(sleep_static_memctlr[0][2], MEM_STADDR0);
au_writel(sleep_static_memctlr[0][0], MEM_STCFG0);
au_writel(sleep_static_memctlr[0][1], MEM_STTIME0);
au_writel(sleep_static_memctlr[0][2], MEM_STADDR0);
au_writel(sleep_static_memctlr[3][1], MEM_STTIME3);
au_writel(sleep_static_memctlr[3][2], MEM_STADDR3);
au_writel(sleep_static_memctlr[3][1], MEM_STTIME3);
au_writel(sleep_static_memctlr[3][2], MEM_STADDR3);
** have a function call out of here to set this up. You need
** to configure the GPIO or timer interrupts that will bring
** you out of sleep.
** For testing, the TOY counter wakeup is useful.
**/
** have a function call out of here to set this up. You need
** to configure the GPIO or timer interrupts that will bring
** you out of sleep.
** For testing, the TOY counter wakeup is useful.
**/
-static int pm_do_sleep(ctl_table * ctl, int write, struct file *file,
- void __user *buffer, size_t * len, loff_t *ppos)
+static int pm_do_sleep(ctl_table *ctl, int write, struct file *file,
+ void __user *buffer, size_t *len, loff_t *ppos)
{
#ifdef SLEEP_TEST_TIMEOUT
#define TMPBUFLEN2 16
char buf[TMPBUFLEN2], *p;
#endif
{
#ifdef SLEEP_TEST_TIMEOUT
#define TMPBUFLEN2 16
char buf[TMPBUFLEN2], *p;
#endif
-static int pm_do_freq(ctl_table * ctl, int write, struct file *file,
- void __user *buffer, size_t * len, loff_t *ppos)
+static int pm_do_freq(ctl_table *ctl, int write, struct file *file,
+ void __user *buffer, size_t *len, loff_t *ppos)
- unsigned long old_baud_base, old_cpu_freq, baud_rate, old_clk,
- old_refresh;
+ unsigned long old_baud_base, old_cpu_freq, old_clk, old_refresh;
unsigned long new_baud_base, new_cpu_freq, new_clk, new_refresh;
unsigned long new_baud_base, new_cpu_freq, new_clk, new_refresh;
/* Parse the new frequency */
if (*len > TMPBUFLEN - 1) {
spin_unlock_irqrestore(&pm_lock, flags);
/* Parse the new frequency */
if (*len > TMPBUFLEN - 1) {
spin_unlock_irqrestore(&pm_lock, flags);
set_au1x00_speed(new_cpu_freq);
set_au1x00_uart_baud_base(new_baud_base);
old_refresh = au_readl(MEM_SDREFCFG) & 0x1ffffff;
set_au1x00_speed(new_cpu_freq);
set_au1x00_uart_baud_base(new_baud_base);
old_refresh = au_readl(MEM_SDREFCFG) & 0x1ffffff;
au_writel(pll, SYS_CPUPLL);
au_sync_delay(1);
au_writel(new_refresh, MEM_SDREFCFG);
au_sync_delay(1);
au_writel(pll, SYS_CPUPLL);
au_sync_delay(1);
au_writel(new_refresh, MEM_SDREFCFG);
au_sync_delay(1);
- for (i = 0; i < 4; i++) {
- if (au_readl
- (UART_BASE + UART_MOD_CNTRL +
- i * 0x00100000) == 3) {
- old_clk =
- au_readl(UART_BASE + UART_CLK +
- i * 0x00100000);
- // baud_rate = baud_base/clk
+ for (i = 0; i < 4; i++)
+ if (au_readl(UART_BASE + UART_MOD_CNTRL +
+ i * 0x00100000) == 3) {
+ old_clk = au_readl(UART_BASE + UART_CLK +
+ i * 0x00100000);
* could be significant enough that our new
* calculation will result in a clock that will
* give us a baud rate that's too far off from
* could be significant enough that our new
* calculation will result in a clock that will
* give us a baud rate that's too far off from
/*
* We don't want _any_ interrupts other than match20. Otherwise our
* au1000_calibrate_delay() calculation will be off, potentially a lot.
/*
* We don't want _any_ interrupts other than match20. Otherwise our
* au1000_calibrate_delay() calculation will be off, potentially a lot.
-/* This is the number of bits of precision for the loops_per_jiffy. Each
- bit takes on average 1.5/HZ seconds. This (like the original) is a little
- better than 1% */
+/*
+ * This is the number of bits of precision for the loops_per_jiffy.
+ * Each bit takes on average 1.5/HZ seconds. This (like the original)
+ * is a little better than 1%.
+ */
unsigned long ticks, loopbit;
int lps_precision = LPS_PREC;
unsigned long ticks, loopbit;
int lps_precision = LPS_PREC;
-/* Do a binary approximation to get loops_per_jiffy set to equal one clock
- (up to lps_precision bits) */
+ /*
+ * Do a binary approximation to get loops_per_jiffy set to be equal
+ * one clock (up to lps_precision bits)
+ */