This is a note to let you know that I've just added the patch titled
ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL enabled on UART3
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-dra7-hwmod-fix-boot-crash-with-debug_ll-enabled-on-uart3.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1c7e36bfc3e2fb2df5e2d1989a4b6fb9055a0f9b Mon Sep 17 00:00:00 2001
From: Lokesh Vutla <lokeshvutla@xxxxxx>
Date: Thu, 8 Jan 2015 17:22:04 +0530
Subject: ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL enabled on UART3
From: Lokesh Vutla <lokeshvutla@xxxxxx>
commit 1c7e36bfc3e2fb2df5e2d1989a4b6fb9055a0f9b upstream.
With commit '7dedd34: ARM: OMAP2+: hwmod: Fix a crash in _setup_reset()
with DEBUG_LL' we moved from parsing cmdline to identify uart used
for earlycon to using the requsite hwmod CONFIG_DEBUG_OMAPxUARTy FLAGS.
On DRA7 UART3 hwmod doesn't have this flag enabled, and atleast on
BeagleBoard-X15, where we use UART3 for console, boot fails with
DEBUG_LL enabled. Enable DEBUG_OMAP4UART3_FLAGS for UART3 hwmod.
For using DEBUG_LL, enable CONFIG_DEBUG_OMAP4UART3 in menuconfig.
Fixes: 90020c7b2c5e ("ARM: OMAP: DRA7: hwmod: Create initial DRA7XX SoC data")
Reviewed-by: Felipe Balbi <balbi@xxxxxx>
Acked-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Lokesh Vutla <lokeshvutla@xxxxxx>
Signed-off-by: Paul Walmsley <paul@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -1669,7 +1669,7 @@ static struct omap_hwmod dra7xx_uart3_hw
.class = &dra7xx_uart_hwmod_class,
.clkdm_name = "l4per_clkdm",
.main_clk = "uart3_gfclk_mux",
- .flags = HWMOD_SWSUP_SIDLE_ACT,
+ .flags = HWMOD_SWSUP_SIDLE_ACT | DEBUG_OMAP4UART3_FLAGS,
.prcm = {
.omap4 = {
.clkctrl_offs = DRA7XX_CM_L4PER_UART3_CLKCTRL_OFFSET,
Patches currently in stable-queue which might be from lokeshvutla@xxxxxx are
queue-3.14/arm-dra7-hwmod-fix-boot-crash-with-debug_ll-enabled-on-uart3.patch
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