From 0a7d5ab41687504f5b2c175cdd882ded1ee262a3 Mon Sep 17 00:00:00 2001
From: John Klug <john.klug@multitech.com>
Date: Mon, 15 May 2017 16:48:01 -0500
Subject: Add RTC interrupt disable to bootstrap (same as MTR).

---
 ...t91bootstrap-3.5.3-disable-rtc-interrupts.patch | 27 ++++++++++++++++++++++
 recipes-bsp/at91bootstrap/at91bootstrap_3.5.3.bb   |  5 ++--
 2 files changed, 30 insertions(+), 2 deletions(-)
 create mode 100644 recipes-bsp/at91bootstrap/at91bootstrap-3.5.3/at91bootstrap-3.5.3-disable-rtc-interrupts.patch

(limited to 'recipes-bsp/at91bootstrap')

diff --git a/recipes-bsp/at91bootstrap/at91bootstrap-3.5.3/at91bootstrap-3.5.3-disable-rtc-interrupts.patch b/recipes-bsp/at91bootstrap/at91bootstrap-3.5.3/at91bootstrap-3.5.3-disable-rtc-interrupts.patch
new file mode 100644
index 0000000..e5dd013
--- /dev/null
+++ b/recipes-bsp/at91bootstrap/at91bootstrap-3.5.3/at91bootstrap-3.5.3-disable-rtc-interrupts.patch
@@ -0,0 +1,27 @@
+Index: at91bootstrap-3.5.3/board/at91sam9x5ek/at91sam9x5ek.c
+===================================================================
+--- at91bootstrap-3.5.3.orig/board/at91sam9x5ek/at91sam9x5ek.c	2015-12-21 15:42:05.498892917 -0600
++++ at91bootstrap-3.5.3/board/at91sam9x5ek/at91sam9x5ek.c	2015-12-22 14:53:59.151521592 -0600
+@@ -46,6 +46,9 @@
+ 
+ #include "onewire_info.h"
+ 
++#define RTC_SCCR   0x1C
++#define RTC_IDR    0x24
++
+ #ifdef CONFIG_USER_HW_INIT
+ extern void hw_init_hook(void);
+ #endif
+@@ -207,6 +210,12 @@
+ #ifdef CONFIG_USER_HW_INIT
+ 	hw_init_hook();
+ #endif
++
++	/* disable all RTC interrupts and clear status register.
++	 * Prevents possible Linux lockup due to unexpected RTC interrupt
++	 */
++	writel(0xFF, RTC_IDR + AT91C_BASE_RTC);
++	writel(0xFF, RTC_SCCR + AT91C_BASE_RTC);
+ }
+ #endif /* #ifdef CONFIG_HW_INIT */
+ 
diff --git a/recipes-bsp/at91bootstrap/at91bootstrap_3.5.3.bb b/recipes-bsp/at91bootstrap/at91bootstrap_3.5.3.bb
index 1858d49..2e5f086 100644
--- a/recipes-bsp/at91bootstrap/at91bootstrap_3.5.3.bb
+++ b/recipes-bsp/at91bootstrap/at91bootstrap_3.5.3.bb
@@ -1,6 +1,6 @@
 require at91bootstrap_3.5.inc
 
-PR = "r2"
+PR = "r3"
 
 LICENSE = "custom-freely-distributable"
 LIC_FILES_CHKSUM = "file://main.c;beginline=6;endline=26;md5=6fca71334c9e8b7d033296123c91437f"
@@ -9,7 +9,8 @@ SRCREV = "v${PV}"
 SRC_URI = "git://github.com/linux4sam/at91bootstrap \
 		file://at91bootstrap-3.5.2-add-install.patch \
 		file://at91bootstrap-3.5.2-onetime-slow-clock-switch.patch \
-		file://at91sam9x5_4bit_pmecc_header.bin "
+		file://at91sam9x5_4bit_pmecc_header.bin \
+		file://at91bootstrap-3.5.3-disable-rtc-interrupts.patch"
 
 S = "${WORKDIR}/git"
 
-- 
cgit v1.2.3