diff options
| author | Dave Gerlach <d-gerlach@ti.com> | 2018-02-18 21:34:57 -0600 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2018-02-27 09:43:24 -0800 |
| commit | 31ffe020af5d1048fddfa6b3f0002da9f5042cc0 (patch) | |
| tree | a80ae05c1ab6f8b09f32f4f74a0bc2f94de6be10 /arch/arm/boot/dts/am33xx.dtsi | |
| parent | ef1e7b45c97398bdc8edcfe627b335c4a0dd3cb0 (diff) | |
ARM: dts: am33xx: Reserve pm code and data regions in ocmcram sram node
Add a 'pm_sram_code' reserved region to the ocmcram node to be exposed
by the mmio-sram driver as a pool but also mark it protect-exec so that
it can run code copied to it using sram_exec_copy.
Add another 'pm_sram_data' reserved region to the ocmcram node to act as
the data space for any code running from the 'pm_sram_code' region that
is exposed as a regular pool.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/am33xx.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/am33xx.dtsi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 628c77b0b386..a9bbf68db077 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -905,6 +905,21 @@ ocmcram: ocmcram@40300000 { compatible = "mmio-sram"; reg = <0x40300000 0x10000>; /* 64k */ + ranges = <0x0 0x40300000 0x10000>; + #address-cells = <1>; + #size-cells = <1>; + + pm_sram_code: pm-sram-code@0 { + compatible = "ti,sram"; + reg = <0x0 0x1000>; + protect-exec; + }; + + pm_sram_data: pm-sram-data@1000 { + compatible = "ti,sram"; + reg = <0x1000 0x1000>; + pool; + }; }; elm: elm@48080000 { |