bindings/sram/sram.yaml

4 $id: http://devicetree.org/schemas/sram/sram.yaml#
7 title: Generic on-chip SRAM
15   Each child of the sram node specifies a region of reserved memory. Each
25     pattern: "^sram(@.*)?"
30         - mmio-sram
32         - rockchip,rk3288-pmu-sram
40       SRAM clock.
50       Should translate from local addresses within the sram to bus addresses.
54       The flag indicating, that SRAM memory region has not to be remapped
59   "^([a-z]*-)?sram(-section)?@[a-f0-9]+$":
62       Each child of the sram node specifies a region of reserved memory.
70             - allwinner,sun4i-a10-sram-a3-a4
71             - allwinner,sun4i-a10-sram-c1
72             - allwinner,sun4i-a10-sram-d
73             - allwinner,sun9i-a80-smp-sram
74             - allwinner,sun50i-a64-sram-c
75             - amlogic,meson8-smp-sram
76             - amlogic,meson8b-smp-sram
79             - renesas,smp-sram
80             - rockchip,rk3066-smp-sram
83             - socionext,milbeaut-smp-sram
87           IO mem address range, relative to the SRAM range.
92           Indicates that the particular reserved SRAM area is addressable
98           Indicates that the reserved SRAM area may be accessed outside
129         const: rockchip,rk3288-pmu-sram
141     sram@5c000000 {
142         compatible = "mmio-sram";
143         reg = <0x5c000000 0x40000>; /* 256 KiB SRAM at address 0x5c000000 */
149         smp-sram@100 {
153         device-sram@1000 {
158         exported-sram@20000 {
169     // Therefore reserved section sub-nodes have to be added to the mmio-sram
172     sram@2020000 {
173         compatible = "mmio-sram";
179         smp-sram@0 {
184         smp-sram@53000 {
191     // Amlogic's SMP-capable SoCs use part of the sram for the bringup of the cores.
195     // Therefore a reserved section sub-node has to be added to the mmio-sram
197     sram@d9000000 {
198         compatible = "mmio-sram";
204         smp-sram@1ff80 {
205             compatible = "amlogic,meson8b-smp-sram";
211     sram@e63c0000 {
212         compatible = "mmio-sram";
218         smp-sram@0 {
219             compatible = "renesas,smp-sram";
225     sram@10080000 {
226         compatible = "mmio-sram";
232         smp-sram@10080000 {
233             compatible = "rockchip,rk3066-smp-sram";
239     // Rockchip's rk3288 SoC uses the sram of pmu to store the function of
241     // the "pmu-sram" because it keeps power even in low power states
243     sram@ff720000 {
244       compatible = "rockchip,rk3288-pmu-sram", "mmio-sram";
249     // Allwinner's A80 SoC uses part of the secure sram for hotplugging of the
255     // check if this SRAM is usable first.
256     sram@20000 {
257         // 256 KiB secure SRAM at 0x20000
258         compatible = "mmio-sram";
264         smp-sram@1000 {
267             compatible = "allwinner,sun9i-a80-smp-sram";
273     sram@0 {
274         compatible = "mmio-sram";
280         smp-sram@f100 {
281             compatible = "socionext,milbeaut-smp-sram";