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From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] N900: fix operation on emulator
Date: Mon, 1 Jul 2013 16:03:20 +0200	[thread overview]
Message-ID: <20130701140315.GA15318@amd.pavel.ucw.cz> (raw)
In-Reply-To: <20130617111031.GQ20992@atomide.com>

Errata workarounds for N900 hardware actually break operation on
emulator. Fix it.

This approach was suggested by Pali Roh?r <pali.rohar@gmail.com>
(thanks!).

(Also explain what "sleep_ind" led actually does).

Signed-off-by: Pavel Machek <pavel@ucw.cz>

diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index 74f83a5..81f7b9f 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -33,9 +33,12 @@
 #include "pm.h"
 #include "sdram-nokia.h"
 #include "board-rx51-secure.h"
+#include "soc.h"
 
 #define RX51_GPIO_SLEEP_IND 162
 
+/* This lights up left part of keyboard */
+
 static struct gpio_led gpio_leds[] = {
 	{
 		.name	= "sleep_ind",
@@ -107,9 +110,11 @@ static void __init rx51_init(void)
 	rx51_camera_init();
 
 #ifdef CONFIG_ARM_ERRATA_430973
-	printk(KERN_INFO "RX-51: Enabling ARM errata 430973 workaround.\n");
-	/* set IBE to 1 */
-	rx51_secure_update_aux_cr(1 << 6, 0);
+	if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
+		printk(KERN_INFO "RX-51: Enabling ARM errata 430973 workaround.\n");
+		/* set IBE to 1 */
+		rx51_secure_update_aux_cr(1 << 6, 0);
+	}
 #endif
 
 	/* Ensure SDRC pins are mux'd for self-refresh */

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  reply	other threads:[~2013-07-01 14:03 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-09  1:59 N900 device tree conversion: how to do first step Pavel Machek
2013-06-09  9:24 ` Pali Rohár
2013-06-09 16:47   ` Pavel Machek
2013-06-09 17:03     ` Pali Rohár
2013-06-09 17:30 ` Pavel Machek
2013-06-09 20:11 ` Aaro Koskinen
2013-06-13 13:26   ` Pavel Machek
2013-06-13 14:10     ` Tony Lindgren
2013-06-13 14:28       ` Pavel Machek
2013-06-13 14:57         ` Tony Lindgren
2013-06-13 15:52           ` Pavel Machek
2013-06-13 16:14             ` Tony Lindgren
2013-06-13 23:08               ` Pavel Machek
2013-06-14  5:56                 ` Tony Lindgren
2013-06-14 21:28                   ` Pavel Machek
2013-06-17 11:10                     ` Tony Lindgren
2013-07-01 14:03                       ` Pavel Machek [this message]
2013-07-01 18:22                         ` [PATCH] N900: fix operation on emulator Sergei Shtylyov
2013-07-01 19:51                           ` Pavel Machek
2013-07-01 20:00                             ` Sergei Shtylyov
2013-07-01 20:53                           ` Pavel Machek
2013-07-01 21:15                       ` [PATCH] N900: enable N900-specific drivers even if device tree is enabled Pavel Machek
2013-07-04 11:47                         ` Tony Lindgren
2013-07-01 21:17                       ` [PATCH] N900: add device tree Pavel Machek
2013-07-04 17:19                         ` Aaro Koskinen
2013-07-04 20:21                           ` Pavel Machek
2013-07-04 20:32                             ` Aaro Koskinen
2013-07-13 12:17                               ` [PATCH v2] " Pavel Machek
2013-07-14 22:28                                 ` Aaro Koskinen
2013-07-28 13:44                                   ` Pavel Machek
2013-08-01 23:43                                     ` Pavel Machek
2013-08-10 11:09                                       ` Pavel Machek
2013-08-10 11:27                                         ` [PATCH] ARM: dts: omap3 / n900 support, Benoit please take me (was Re: [PATCH v2] N900: add device tree) Pavel Machek
2013-08-10 11:46                                         ` [PATCH v2] N900: add device tree Belisko Marek
2013-08-10 20:29                                           ` Jiri Kosina
2013-08-11  0:55                                             ` OMAP device tree maintainance (was Re: [PATCH v2] N900: add device tree) Pavel Machek
2013-08-11 11:50                                             ` [PATCH v2] N900: add device tree Javier Martinez Canillas
2013-08-11 13:47                                               ` Pavel Machek
2013-08-12  7:37                                                 ` Tony Lindgren
2013-08-12  7:36                                             ` Tony Lindgren
2013-08-11 15:02                                 ` Javier Martinez Canillas
2013-08-13 10:50                                   ` Benoit Cousson
2013-08-13 13:36                                     ` [PATCH v3] " Pavel Machek
2013-08-13 14:06                                       ` Benoit Cousson
2013-07-19 18:14 ` N900 device tree conversion: how to do first step Sebastian Reichel
2013-07-28 13:37   ` Pavel Machek

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