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From: Guillaume Tucker <guillaume.tucker@collabora.com>
To: Russell King <linux@armlinux.org.uk>,
	Kukjin Kim <kgene@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Rob Herring <robh+dt@kernel.org>
Cc: kernel@collabora.com, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] ARM: exynos: clear L220_AUX_CTRL_NS_LOCKDOWN in default l2c_aux_val
Date: Wed, 29 Jul 2020 14:47:31 +0100	[thread overview]
Message-ID: <860eb8a1eed879e55daf960c96acdac514cbda93.1596028601.git.guillaume.tucker@collabora.com> (raw)

The L220_AUX_CTRL_NS_LOCKDOWN flag is set during the L2C enable
sequence.  There is no need to set it in the default register value,
this was done before support for it was implemented in the code.  It
is not set in the hardware initial value either.

Clean this up by removing this flag from the default l2c_aux_val, and
add it to the l2c_aux_mask to print an alert message if it was already
set before the kernel initialisation.

Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
---
 arch/arm/mach-exynos/exynos.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 36c37444485a..a96f3353a0c1 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -193,8 +193,8 @@ static void __init exynos_dt_fixup(void)
 }
 
 DT_MACHINE_START(EXYNOS_DT, "Samsung Exynos (Flattened Device Tree)")
-	.l2c_aux_val	= 0x3c400000,
-	.l2c_aux_mask	= 0xc20fffff,
+	.l2c_aux_val	= 0x38400000,
+	.l2c_aux_mask	= 0xc60fffff,
 	.smp		= smp_ops(exynos_smp_ops),
 	.map_io		= exynos_init_io,
 	.init_early	= exynos_firmware_init,
-- 
2.20.1


WARNING: multiple messages have this Message-ID (diff)
From: Guillaume Tucker <guillaume.tucker@collabora.com>
To: Russell King <linux@armlinux.org.uk>,
	Kukjin Kim <kgene@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
	kernel@collabora.com, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/3] ARM: exynos: clear L220_AUX_CTRL_NS_LOCKDOWN in default l2c_aux_val
Date: Wed, 29 Jul 2020 14:47:31 +0100	[thread overview]
Message-ID: <860eb8a1eed879e55daf960c96acdac514cbda93.1596028601.git.guillaume.tucker@collabora.com> (raw)

The L220_AUX_CTRL_NS_LOCKDOWN flag is set during the L2C enable
sequence.  There is no need to set it in the default register value,
this was done before support for it was implemented in the code.  It
is not set in the hardware initial value either.

Clean this up by removing this flag from the default l2c_aux_val, and
add it to the l2c_aux_mask to print an alert message if it was already
set before the kernel initialisation.

Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
---
 arch/arm/mach-exynos/exynos.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 36c37444485a..a96f3353a0c1 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -193,8 +193,8 @@ static void __init exynos_dt_fixup(void)
 }
 
 DT_MACHINE_START(EXYNOS_DT, "Samsung Exynos (Flattened Device Tree)")
-	.l2c_aux_val	= 0x3c400000,
-	.l2c_aux_mask	= 0xc20fffff,
+	.l2c_aux_val	= 0x38400000,
+	.l2c_aux_mask	= 0xc60fffff,
 	.smp		= smp_ops(exynos_smp_ops),
 	.map_io		= exynos_init_io,
 	.init_early	= exynos_firmware_init,
-- 
2.20.1


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             reply	other threads:[~2020-07-29 13:47 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-29 13:47 Guillaume Tucker [this message]
2020-07-29 13:47 ` [PATCH 1/3] ARM: exynos: clear L220_AUX_CTRL_NS_LOCKDOWN in default l2c_aux_val Guillaume Tucker
2020-07-29 13:47 ` [PATCH 2/3] ARM: l2c: update prefetch bits in L2X0_AUX_CTRL using DT value Guillaume Tucker
2020-07-29 13:47   ` Guillaume Tucker
2020-07-29 14:18   ` Russell King - ARM Linux admin
2020-07-29 14:18     ` Russell King - ARM Linux admin
2020-07-29 16:22     ` Guillaume Tucker
2020-07-29 16:22       ` Guillaume Tucker
2020-08-10 12:34       ` Guillaume Tucker
2020-08-10 12:34         ` Guillaume Tucker
2020-07-29 13:47 ` [PATCH 3/3] ARM: exynos: use DT prefetch attributes rather than l2c_aux_val Guillaume Tucker
2020-07-29 13:47   ` Guillaume Tucker
2020-08-03 13:13   ` Krzysztof Kozlowski
2020-08-03 13:13     ` Krzysztof Kozlowski
2020-08-10 12:29     ` Guillaume Tucker
2020-08-10 12:29       ` Guillaume Tucker
2020-08-03 13:34 ` [PATCH 1/3] ARM: exynos: clear L220_AUX_CTRL_NS_LOCKDOWN in default l2c_aux_val Krzysztof Kozlowski
2020-08-03 13:34   ` Krzysztof Kozlowski
2020-08-03 14:22   ` Russell King - ARM Linux admin
2020-08-03 14:22     ` Russell King - ARM Linux admin
2020-08-10 12:25     ` Guillaume Tucker
2020-08-10 12:25       ` Guillaume Tucker

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