[yocto] [PATCH 1/1] RTC: Ensure msecure is mux'd to be able to set RTC

[Koen Kooi]

Op 16 jun 2011, om 08:07 heeft Jingdong Lu het volgende geschreven:

> From: Jingdong Lu <jingdong.lu at windriver.com>
> 
> commit e2a346a2a054f702fd76f328ff747b9ad9264a4c from git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git

When I do 'git show e2a346a2a054f702fd76f328ff747b9ad9264a4' I get:

commit e2a346a2a054f702fd76f328ff747b9ad9264a4c
Author: Alexander Holler <holler at ahsoftware.de>

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Date:   Tue Apr 5 15:40:08 2011 +0200

    arm: omap3: beagle: Ensure msecure is mux'd to be able to set the RTC
    
    Without msecure beeing high it isn't possible to set (or start)
    the RTC.
    
    Tested with a BeagleBoard C4.
    
    Signed-off-by: Alexander Holler <holler at ahsoftware.de>
    Signed-off-by: Tony Lindgren <tony at atomide.com>

diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index be71426..d64ed97 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -579,6 +579,9 @@ static void __init omap3_beagle_init(void)
        omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
                             ARRAY_SIZE(omap3beagle_nand_partitions));
 
+       /* Ensure msecure is mux'd to be able to set the RTC. */
+       omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
+
        /* Ensure SDRC pins are mux'd for self-refresh */
        omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
        omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);


So if you're going to change the author, you'd also need to remove the SOBs.

> 
> arm: omap3: beagle: Ensure msecure is mux'd to be able to set the RTC.
> "Msecure" signal provides for protection of the RTC register in TPS65950 be
> disabling that function via a control signal from the OMAP3530. So ensure
> msecure is mux'd to be able to set the RTC.
> 
> Tested with a BeagleBoard C4.
> Fixes bug [YOCTO #767]
> 
> Signed-off-by: Alexander Holler <holler at ahsoftware.de>
> Signed-off-by: Tony Lindgren <tony at atomide.com>
> Integrated-by: Jingdong Lu <jingdong.lu at windriver.com>
> ---
> arch/arm/mach-omap2/board-omap3beagle.c |    3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
> index af1166b..925c0b3 100644
> --- a/arch/arm/mach-omap2/board-omap3beagle.c
> +++ b/arch/arm/mach-omap2/board-omap3beagle.c
> @@ -580,6 +580,9 @@ static void __init omap3_beagle_init(void)
> 	usb_ehci_init(&ehci_pdata);
> 	omap3beagle_flash_init();
> 
> +	/* Ensure msecure is mux'd to be able to set the RTC. */
> +	omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
> +
> 	/* Ensure SDRC pins are mux'd for self-refresh */
> 	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
> 	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
> -- 
> 1.7.0.4
> 
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