diff options
Diffstat (limited to 'target/linux/xburst/patches-3.3/0014-MIPS-JZ4740-reset-Initialize-hibernate-wakeup-counte.patch')
-rw-r--r-- | target/linux/xburst/patches-3.3/0014-MIPS-JZ4740-reset-Initialize-hibernate-wakeup-counte.patch | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/target/linux/xburst/patches-3.3/0014-MIPS-JZ4740-reset-Initialize-hibernate-wakeup-counte.patch b/target/linux/xburst/patches-3.3/0014-MIPS-JZ4740-reset-Initialize-hibernate-wakeup-counte.patch deleted file mode 100644 index b4e484321f..0000000000 --- a/target/linux/xburst/patches-3.3/0014-MIPS-JZ4740-reset-Initialize-hibernate-wakeup-counte.patch +++ /dev/null @@ -1,91 +0,0 @@ -From 2dcb0ca66d0bffc23d5f001fad81fb1a7a2c371b Mon Sep 17 00:00:00 2001 -From: Maarten ter Huurne <maarten@treewalker.org> -Date: Tue, 28 Jun 2011 22:28:59 +0200 -Subject: [PATCH 14/21] MIPS: JZ4740: reset: Initialize hibernate wakeup - counters. - -In hibernation mode only the wakeup logic and the RTC are left running, -so this is what users perceive as power down. - -If the counters are not initialized, the corresponding pin (typically -connected to the power button) has to be asserted for two seconds -before the device wakes up. Most users expect a shorter wakeup time. - -I took the timing values of 100 ms and 60 ms from BouKiCHi's patch for -the Dingoo A320 kernel. ---- - arch/mips/jz4740/reset.c | 46 ++++++++++++++++++++++++++++++++++++++++------ - 1 files changed, 40 insertions(+), 6 deletions(-) - ---- a/arch/mips/jz4740/reset.c -+++ b/arch/mips/jz4740/reset.c -@@ -21,6 +21,9 @@ - #include <asm/mach-jz4740/base.h> - #include <asm/mach-jz4740/timer.h> - -+#include "reset.h" -+#include "clock.h" -+ - static void jz4740_halt(void) - { - while (1) { -@@ -53,21 +56,52 @@ static void jz4740_restart(char *command - jz4740_halt(); - } - --#define JZ_REG_RTC_CTRL 0x00 --#define JZ_REG_RTC_HIBERNATE 0x20 -- --#define JZ_RTC_CTRL_WRDY BIT(7) -+#define JZ_REG_RTC_CTRL 0x00 -+#define JZ_REG_RTC_HIBERNATE 0x20 -+#define JZ_REG_RTC_WAKEUP_FILTER 0x24 -+#define JZ_REG_RTC_RESET_COUNTER 0x28 -+ -+#define JZ_RTC_CTRL_WRDY BIT(7) -+#define JZ_RTC_WAKEUP_FILTER_MASK 0x0000FFE0 -+#define JZ_RTC_RESET_COUNTER_MASK 0x00000FE0 - --static void jz4740_power_off(void) -+static inline void jz4740_rtc_wait_ready(void __iomem *rtc_base) - { -- void __iomem *rtc_base = ioremap(JZ4740_RTC_BASE_ADDR, 0x24); - uint32_t ctrl; -- - do { - ctrl = readl(rtc_base + JZ_REG_RTC_CTRL); - } while (!(ctrl & JZ_RTC_CTRL_WRDY)); -+} - -+static void jz4740_power_off(void) -+{ -+ void __iomem *rtc_base = ioremap(JZ4740_RTC_BASE_ADDR, 0x38); -+ unsigned long long wakeup_filter_ticks; -+ unsigned long long reset_counter_ticks; -+ -+ /* Set minimum wakeup pin assertion time: 100 ms. -+ Range is 0 to 2 sec if RTC is clocked at 32 kHz. */ -+ wakeup_filter_ticks = (100 * jz4740_clock_bdata.rtc_rate) / 1000; -+ if (wakeup_filter_ticks < JZ_RTC_WAKEUP_FILTER_MASK) -+ wakeup_filter_ticks &= JZ_RTC_WAKEUP_FILTER_MASK; -+ else -+ wakeup_filter_ticks = JZ_RTC_WAKEUP_FILTER_MASK; -+ jz4740_rtc_wait_ready(rtc_base); -+ writel(wakeup_filter_ticks, rtc_base + JZ_REG_RTC_WAKEUP_FILTER); -+ -+ /* Set reset pin low-level assertion time after wakeup: 60 ms. -+ Range is 0 to 125 ms if RTC is clocked at 32 kHz. */ -+ reset_counter_ticks = (60 * jz4740_clock_bdata.rtc_rate) / 1000; -+ if (reset_counter_ticks < JZ_RTC_RESET_COUNTER_MASK) -+ reset_counter_ticks &= JZ_RTC_RESET_COUNTER_MASK; -+ else -+ reset_counter_ticks = JZ_RTC_RESET_COUNTER_MASK; -+ jz4740_rtc_wait_ready(rtc_base); -+ writel(reset_counter_ticks, rtc_base + JZ_REG_RTC_RESET_COUNTER); -+ -+ jz4740_rtc_wait_ready(rtc_base); - writel(1, rtc_base + JZ_REG_RTC_HIBERNATE); -+ - jz4740_halt(); - } - |