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From: Tony Lindgren <tony@atomide.com>
To: linux-omap@vger.kernel.org
Cc: "Benoît Cousson" <bcousson@baylibre.com>, devicetree@vger.kernel.org
Subject: [PATCH 07/12] ARM: dts: Move omap4 mmio-sram out of l3 interconnect
Date: Mon,  8 Mar 2021 15:39:05 +0200	[thread overview]
Message-ID: <20210308133910.12454-8-tony@atomide.com> (raw)
In-Reply-To: <20210308133910.12454-1-tony@atomide.com>

We need mmio-sram early for omap4_sram_init() for IO barrier init, and
will be moving l3 interconnect to probe with simple-pm-bus that probes
at module_init() time. So let's move mmio-sram out of l3 to prepare for
that.

Otherwise we will get the following after probing the interconnects with
simple-pm-bus:

omap4_sram_init:Unable to get sram pool needed to handle errata I688

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap4.dtsi | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -58,6 +58,15 @@ cpu@1 {
 		};
 	};
 
+	/*
+	 * Needed early by omap4_sram_init() for barrier, do not move to l3
+	 * interconnect as simple-pm-bus probes at module_init() time.
+	 */
+	ocmcram: sram@40304000 {
+		compatible = "mmio-sram";
+		reg = <0x40304000 0xa000>; /* 40k */
+	};
+
 	gic: interrupt-controller@48241000 {
 		compatible = "arm,cortex-a9-gic";
 		interrupt-controller;
@@ -136,11 +145,6 @@ mpu {
 		l4_abe: interconnect@40100000 {
 		};
 
-		ocmcram: sram@40304000 {
-			compatible = "mmio-sram";
-			reg = <0x40304000 0xa000>; /* 40k */
-		};
-
 		target-module@50000000 {
 			compatible = "ti,sysc-omap2", "ti,sysc";
 			reg = <0x50000000 4>,
-- 
2.30.1

  parent reply	other threads:[~2021-03-08 13:39 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-08 13:38 [PATCH 00/12] Update omap4 devicetree files to probe with genpd Tony Lindgren
2021-03-08 13:38 ` [PATCH 01/12] ARM: dts: Configure power-domain for omap4 gfx Tony Lindgren
2021-03-08 13:39 ` [PATCH 02/12] ARM: dts: Configure power-domain for omap4 dts iss Tony Lindgren
2021-03-08 13:39 ` [PATCH 03/12] ARM: dts: Configure interconnect target module for omap4 dmm Tony Lindgren
2021-03-08 13:39 ` [PATCH 04/12] ARM: dts: Configure interconnect target module for omap4 emif Tony Lindgren
2021-03-08 13:39 ` [PATCH 05/12] ARM: dts: Configure interconnect target module for omap4 debugss Tony Lindgren
2021-03-08 13:39 ` [PATCH 06/12] ARM: dts: Configure interconnect target module for omap4 mpu Tony Lindgren
2021-03-08 13:39 ` Tony Lindgren [this message]
2021-03-08 13:39 ` [PATCH 08/12] ARM: dts: Move omap4 l3-noc to a separate node Tony Lindgren
2021-03-08 13:39 ` [PATCH 09/12] ARM: dts: Configure simple-pm-bus for omap4 l4_wkup Tony Lindgren
2021-03-08 13:39 ` [PATCH 10/12] ARM: dts: Configure simple-pm-bus for omap4 l4_per Tony Lindgren
2021-03-08 13:39 ` [PATCH 11/12] ARM: dts: Configure simple-pm-bus for omap4 l4_cfg Tony Lindgren
2021-03-08 13:39 ` [PATCH 12/12] ARM: dts: Prepare for simple-pm-bus for omap4 l3 Tony Lindgren

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