diff options
Diffstat (limited to 'arch/arm/plat-samsung/pm.c')
| -rw-r--r-- | arch/arm/plat-samsung/pm.c | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c index ae9baa2d6381..f8c0f9797dcf 100644 --- a/arch/arm/plat-samsung/pm.c +++ b/arch/arm/plat-samsung/pm.c @@ -17,7 +17,6 @@ #include <linux/errno.h> #include <linux/delay.h> #include <linux/of.h> -#include <linux/serial_core.h> #include <linux/serial_s3c.h> #include <linux/io.h> @@ -25,7 +24,6 @@ #include <asm/suspend.h> #ifdef CONFIG_SAMSUNG_ATAGS -#include <mach/hardware.h> #include <mach/map.h> #ifndef CONFIG_ARCH_EXYNOS #include <mach/regs-clock.h> @@ -43,93 +41,6 @@ unsigned long s3c_pm_flags; -/* Debug code: - * - * This code supports debug output to the low level UARTs for use on - * resume before the console layer is available. -*/ - -#ifdef CONFIG_SAMSUNG_PM_DEBUG -extern void printascii(const char *); - -void s3c_pm_dbg(const char *fmt, ...) -{ - va_list va; - char buff[256]; - - va_start(va, fmt); - vsnprintf(buff, sizeof(buff), fmt, va); - va_end(va); - - printascii(buff); -} - -static inline void s3c_pm_debug_init(void) -{ - /* restart uart clocks so we can use them to output */ - s3c_pm_debug_init_uart(); -} - -#else -#define s3c_pm_debug_init() do { } while(0) - -#endif /* CONFIG_SAMSUNG_PM_DEBUG */ - -/* Save the UART configurations if we are configured for debug. */ - -unsigned char pm_uart_udivslot; - -#ifdef CONFIG_SAMSUNG_PM_DEBUG - -static struct pm_uart_save uart_save; - -static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save) -{ - void __iomem *regs = S3C_VA_UARTx(uart); - - save->ulcon = __raw_readl(regs + S3C2410_ULCON); - save->ucon = __raw_readl(regs + S3C2410_UCON); - save->ufcon = __raw_readl(regs + S3C2410_UFCON); - save->umcon = __raw_readl(regs + S3C2410_UMCON); - save->ubrdiv = __raw_readl(regs + S3C2410_UBRDIV); - - if (pm_uart_udivslot) - save->udivslot = __raw_readl(regs + S3C2443_DIVSLOT); - - S3C_PMDBG("UART[%d]: ULCON=%04x, UCON=%04x, UFCON=%04x, UBRDIV=%04x\n", - uart, save->ulcon, save->ucon, save->ufcon, save->ubrdiv); -} - -static void s3c_pm_save_uarts(void) -{ - s3c_pm_save_uart(CONFIG_DEBUG_S3C_UART, &uart_save); -} - -static void s3c_pm_restore_uart(unsigned int uart, struct pm_uart_save *save) -{ - void __iomem *regs = S3C_VA_UARTx(uart); - - s3c_pm_arch_update_uart(regs, save); - - __raw_writel(save->ulcon, regs + S3C2410_ULCON); - __raw_writel(save->ucon, regs + S3C2410_UCON); - __raw_writel(save->ufcon, regs + S3C2410_UFCON); - __raw_writel(save->umcon, regs + S3C2410_UMCON); - __raw_writel(save->ubrdiv, regs + S3C2410_UBRDIV); - - if (pm_uart_udivslot) - __raw_writel(save->udivslot, regs + S3C2443_DIVSLOT); -} - -static void s3c_pm_restore_uarts(void) -{ - s3c_pm_restore_uart(CONFIG_DEBUG_S3C_UART, &uart_save); -} -#else -static void s3c_pm_save_uarts(void) { } -static void s3c_pm_restore_uarts(void) { } -#endif - /* The IRQ ext-int code goes here, it is too small to currently bother * with its own file. */ @@ -154,62 +65,6 @@ int s3c_irqext_wake(struct irq_data *data, unsigned int state) return 0; } -/* helper functions to save and restore register state */ - -/** - * s3c_pm_do_save() - save a set of registers for restoration on resume. - * @ptr: Pointer to an array of registers. - * @count: Size of the ptr array. - * - * Run through the list of registers given, saving their contents in the - * array for later restoration when we wakeup. - */ -void s3c_pm_do_save(struct sleep_save *ptr, int count) -{ - for (; count > 0; count--, ptr++) { - ptr->val = __raw_readl(ptr->reg); - S3C_PMDBG("saved %p value %08lx\n", ptr->reg, ptr->val); - } -} - -/** - * s3c_pm_do_restore() - restore register values from the save list. - * @ptr: Pointer to an array of registers. - * @count: Size of the ptr array. - * - * Restore the register values saved from s3c_pm_do_save(). - * - * Note, we do not use S3C_PMDBG() in here, as the system may not have - * restore the UARTs state yet -*/ - -void s3c_pm_do_restore(const struct sleep_save *ptr, int count) -{ - for (; count > 0; count--, ptr++) { - printk(KERN_DEBUG "restore %p (restore %08lx, was %08x)\n", - ptr->reg, ptr->val, __raw_readl(ptr->reg)); - - __raw_writel(ptr->val, ptr->reg); - } -} - -/** - * s3c_pm_do_restore_core() - early restore register values from save list. - * - * This is similar to s3c_pm_do_restore() except we try and minimise the - * side effects of the function in case registers that hardware might need - * to work has been restored. - * - * WARNING: Do not put any debug in here that may effect memory or use - * peripherals, as things may be changing! -*/ - -void s3c_pm_do_restore_core(const struct sleep_save *ptr, int count) -{ - for (; count > 0; count--, ptr++) - __raw_writel(ptr->val, ptr->reg); -} - /* s3c2410_pm_show_resume_irqs * * print any IRQs asserted at resume time (ie, we woke from) |