diff options
Diffstat (limited to 'recipes/linux/linux/simpad/linux-2.6.24-SIMpad-rtc-sa1100.patch')
| -rw-r--r-- | recipes/linux/linux/simpad/linux-2.6.24-SIMpad-rtc-sa1100.patch | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/recipes/linux/linux/simpad/linux-2.6.24-SIMpad-rtc-sa1100.patch b/recipes/linux/linux/simpad/linux-2.6.24-SIMpad-rtc-sa1100.patch new file mode 100644 index 0000000000..407fd89a26 --- /dev/null +++ b/recipes/linux/linux/simpad/linux-2.6.24-SIMpad-rtc-sa1100.patch @@ -0,0 +1,68 @@ +diff -Nur linux-2.6.24.vanilla/drivers/rtc/rtc-sa1100.c linux-2.6.24_rtc/drivers/rtc/rtc-sa1100.c +--- linux-2.6.24.vanilla/drivers/rtc/rtc-sa1100.c 2008-01-24 23:58:37.000000000 +0100 ++++ linux-2.6.24_rtc/drivers/rtc/rtc-sa1100.c 2008-03-24 13:49:40.000000000 +0100 +@@ -79,7 +79,10 @@ + + rtsr = RTSR; + /* clear interrupt sources */ +- RTSR = 0; ++ RTSR &= ~RTSR_HZE; //RTSR = 0; is not possible and does not work ++ RTSR &= ~RTSR_HZ; ++ RTSR &= ~RTSR_ALE; ++ RTSR &= ~RTSR_AL; + RTSR = (RTSR_AL | RTSR_HZ) & (rtsr >> 2); + + /* clear alarm interrupt if it has occurred */ +@@ -155,6 +158,20 @@ + { + int ret; + ++ /* ++ * On some devices RTSR is set to some value but it must be set to 0. ++ * We have to set RTSR to 0 and OIER/OSSR to default. This should not be ++ * necessary here but it is. ++ */ ++ spin_lock_irq(&sa1100_rtc_lock); ++ RTSR &= ~RTSR_HZE; ++ RTSR &= ~RTSR_HZ; ++ RTSR &= ~RTSR_ALE; ++ RTSR &= ~RTSR_AL; ++ OIER &= ~OIER_E1; ++ OSSR = OSSR_M1; ++ spin_unlock_irq(&sa1100_rtc_lock); ++ + ret = request_irq(IRQ_RTC1Hz, sa1100_rtc_interrupt, IRQF_DISABLED, + "rtc 1Hz", dev); + if (ret) { +@@ -186,7 +203,10 @@ + static void sa1100_rtc_release(struct device *dev) + { + spin_lock_irq(&sa1100_rtc_lock); +- RTSR = 0; ++ RTSR &= ~RTSR_HZE; //RTSR = 0; is not possible and does not work ++ RTSR &= ~RTSR_HZ; ++ RTSR &= ~RTSR_ALE; ++ RTSR &= ~RTSR_AL; + OIER &= ~OIER_E1; + OSSR = OSSR_M1; + spin_unlock_irq(&sa1100_rtc_lock); +@@ -339,6 +359,19 @@ + + platform_set_drvdata(pdev, rtc); + ++ /* ++ * On some devices RTSR is set to some value but it must be set to 0. ++ * We have to set RTSR to 0 and OIER/OSSR to default. ++ */ ++ spin_lock_irq(&sa1100_rtc_lock); ++ RTSR &= ~RTSR_HZE; ++ RTSR &= ~RTSR_HZ; ++ RTSR &= ~RTSR_ALE; ++ RTSR &= ~RTSR_AL; ++ OIER &= ~OIER_E1; ++ OSSR = OSSR_M1; ++ spin_unlock_irq(&sa1100_rtc_lock); ++ + return 0; + } + |