| Message ID | 1462909782-14639-2-git-send-email-d-gerlach@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, May 10, 2016 at 02:49:41PM -0500, Dave Gerlach wrote: > Add all ocmcram nodes to dra7.dtsi using the generic mmio-sram driver. > DRA7xx and AM57xx families of SoCs can contain three ocmcram regions of > SRAM, one of 512kb and also an optional two additional of 1Mb each. Mark > the two additional 1MB regions of SRAM as disabled as only ocmcmram1 is > on all variants of the SoCs, then depending on which specific variant > is in use the ocmcram2 and ocmcram3 nodes can be enabled in the board > dts file if the data manual for that part number indicates the ocmcram > region is available. > > Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Reviewed-by: Andreas Dannenberg <dannenberg@ti.com> Regards, -- Andreas Dannenberg Texas Instruments Inc -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index 13ac88279427..fd6f74856bd3 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -286,6 +286,38 @@ }; }; + ocmcram1: ocmcram@40300000 { + compatible = "mmio-sram"; + reg = <0x40300000 0x80000>; + ranges = <0x0 0x40300000 0x80000>; + #address-cells = <1>; + #size-cells = <1>; + }; + + /* + * NOTE: ocmcram2 and ocmcram3 are not available on all + * DRA7xx and AM57xx variants. Confirm availability in + * the data manual for the exact part number in use + * before enabling these nodes in the board dts file. + */ + ocmcram2: ocmcram@40400000 { + status = "disabled"; + compatible = "mmio-sram"; + reg = <0x40400000 0x100000>; + ranges = <0x0 0x40400000 0x100000>; + #address-cells = <1>; + #size-cells = <1>; + }; + + ocmcram3: ocmcram@40500000 { + status = "disabled"; + compatible = "mmio-sram"; + reg = <0x40500000 0x100000>; + ranges = <0x0 0x40500000 0x100000>; + #address-cells = <1>; + #size-cells = <1>; + }; + bandgap: bandgap@4a0021e0 { reg = <0x4a0021e0 0xc 0x4a00232c 0xc
Add all ocmcram nodes to dra7.dtsi using the generic mmio-sram driver. DRA7xx and AM57xx families of SoCs can contain three ocmcram regions of SRAM, one of 512kb and also an optional two additional of 1Mb each. Mark the two additional 1MB regions of SRAM as disabled as only ocmcmram1 is on all variants of the SoCs, then depending on which specific variant is in use the ocmcram2 and ocmcram3 nodes can be enabled in the board dts file if the data manual for that part number indicates the ocmcram region is available. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> --- arch/arm/boot/dts/dra7.dtsi | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+)