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| author | Dave Gerlach <d-gerlach@ti.com> | 2018-02-18 21:34:58 -0600 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2018-02-27 09:43:25 -0800 |
| commit | 590e1d5ec6da4c493d1bde71894109cbee29dfcc (patch) | |
| tree | 08bc7712999de3e963ea3c56291aa8abd2ad1704 /arch/arm/boot/dts/am4372.dtsi | |
| parent | 31ffe020af5d1048fddfa6b3f0002da9f5042cc0 (diff) | |
| download | blackbird-obmc-linux-590e1d5ec6da4c493d1bde71894109cbee29dfcc.tar.gz blackbird-obmc-linux-590e1d5ec6da4c493d1bde71894109cbee29dfcc.zip | |
ARM: dts: am4372: 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/am4372.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/am4372.dtsi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index 964f3ef79728..81a03c1ad770 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -1141,6 +1141,21 @@ ocmcram: ocmcram@40300000 { compatible = "mmio-sram"; reg = <0x40300000 0x40000>; /* 256k */ + ranges = <0x0 0x40300000 0x40000>; + #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; + }; }; dcan0: can@481cc000 { |
