Lines Matching +full:parameter +full:- +full:less
1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/rockchip,rk3399-dmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Brian Norris <briannorris@chromium.org>
15 - rockchip,rk3399-dmc
17 devfreq-events:
26 clock-names:
28 - const: dmc_clk
30 operating-points-v2: true
32 center-supply:
51 For values, reference include/dt-bindings/clock/rk3399-ddr.h. Selects the
52 DDR3 cl-trp-trcd type. It must be set according to "Speed Bin" in DDR3
60 Configure the PD_IDLE value. Defines the power-down idle period in which
61 memories are placed into power-down mode if bus is idle for PD_IDLE DFI
63 See also rockchip,pd-idle-ns.
69 Configure the SR_IDLE value. Defines the self-refresh idle period in
70 which memories are placed into self-refresh mode if bus is idle for
72 See also rockchip,sr-idle-ns.
79 Defines the memory self-refresh and controller clock gating idle period.
80 Memories are placed into self-refresh mode and memory controller clock
83 See also rockchip,sr-mc-gate-idle-ns.
89 Defines the self-refresh power down idle period in which memories are
90 placed into self-refresh power down mode if bus is idle for
91 srpd_lite_idle * 1024 DFI clock cycles. This parameter is for LPDDR4
93 See also rockchip,srpd-lite-idle-ns.
100 self-refresh mode. The controller, pi, PHY and DRAM clock will be gated
102 See also rockchip,standby-idle-ns.
108 Defines the DDR3 DLL bypass frequency in MHz. When DDR frequency is less
117 is less than DRAM_DLL_DISB_FREQ, PHY DLL will be bypassed.
130 When the DRAM type is DDR3, this parameter defines the ODT disable
131 frequency in Hz. When the DDR frequency is less then ddr3_odt_dis_freq,
138 When the DRAM type is DDR3, this parameter defines the DRAM side drive
146 When the DRAM type is DDR3, this parameter defines the DRAM side ODT
154 When the DRAM type is DDR3, this parameter defines the phy side CA line
162 When the DRAM type is DDR3, this parameter defines the PHY side DQ line
170 When the DRAM type is DDR3, this parameter defines the PHY side ODT
178 When the DRAM type is LPDDR3, this parameter defines then ODT disable
179 frequency in Hz. When DDR frequency is less then ddr3_odt_dis_freq, the
186 When the DRAM type is LPDDR3, this parameter defines the DRAM side drive
194 When the DRAM type is LPDDR3, this parameter defines the DRAM side ODT
202 When the DRAM type is LPDDR3, this parameter defines the PHY side CA line
210 When the DRAM type is LPDDR3, this parameter defines the PHY side DQ line
218 When dram type is LPDDR3, this parameter define the phy side odt
225 When the DRAM type is LPDDR4, this parameter defines the ODT disable
226 frequency in Hz. When the DDR frequency is less then ddr3_odt_dis_freq,
233 When the DRAM type is LPDDR4, this parameter defines the DRAM side drive
241 When the DRAM type is LPDDR4, this parameter defines the DRAM side ODT on
249 When the DRAM type is LPDDR4, this parameter defines the DRAM side ODT on
257 When the DRAM type is LPDDR4, this parameter defines the PHY side CA line
265 When the DRAM type is LPDDR4, this parameter defines the PHY side clock
273 When the DRAM type is LPDDR4, this parameter defines the PHY side DQ line
281 When the DRAM type is LPDDR4, this parameter defines the PHY side ODT
285 rockchip,pd-idle-ns:
287 Configure the PD_IDLE value in nanoseconds. Defines the power-down idle
288 period in which memories are placed into power-down mode if bus is idle
291 rockchip,sr-idle-ns:
293 Configure the SR_IDLE value in nanoseconds. Defines the self-refresh idle
294 period in which memories are placed into self-refresh mode if bus is idle
298 rockchip,sr-mc-gate-idle-ns:
300 Defines the memory self-refresh and controller clock gating idle period in nanoseconds.
301 Memories are placed into self-refresh mode and memory controller clock
304 rockchip,srpd-lite-idle-ns:
306 Defines the self-refresh power down idle period in which memories are
307 placed into self-refresh power down mode if bus is idle for
308 srpd_lite_idle nanoseconds. This parameter is for LPDDR4 only.
310 rockchip,standby-idle-ns:
313 self-refresh mode. The controller, pi, PHY and DRAM clock will be gated
316 rockchip,pd-idle-dis-freq-hz:
318 Defines the power-down idle disable frequency in Hz. When the DDR
319 frequency is greater than pd-idle-dis-freq, power-down idle is disabled.
320 See also rockchip,pd-idle-ns.
322 rockchip,sr-idle-dis-freq-hz:
324 Defines the self-refresh idle disable frequency in Hz. When the DDR
325 frequency is greater than sr-idle-dis-freq, self-refresh idle is
326 disabled. See also rockchip,sr-idle-ns.
328 rockchip,sr-mc-gate-idle-dis-freq-hz:
330 Defines the self-refresh and memory-controller clock gating disable
332 sr-mc-gate-idle-dis-freq, the clock will not be gated when idle. See also
333 rockchip,sr-mc-gate-idle-ns.
335 rockchip,srpd-lite-idle-dis-freq-hz:
337 Defines the self-refresh power down idle disable frequency in Hz. When
338 the DDR frequency is greater than srpd-lite-idle-dis-freq, memory will
339 not be placed into self-refresh power down mode when idle. See also
340 rockchip,srpd-lite-idle-ns.
342 rockchip,standby-idle-dis-freq-hz:
345 is greater than standby-idle-dis-freq, standby idle is disabled. See also
346 rockchip,standby-idle-ns.
349 - compatible
350 - devfreq-events
351 - clocks
352 - clock-names
353 - operating-points-v2
354 - center-supply
359 - |
360 #include <dt-bindings/clock/rk3399-cru.h>
361 #include <dt-bindings/interrupt-controller/arm-gic.h>
362 memory-controller {
363 compatible = "rockchip,rk3399-dmc";
364 devfreq-events = <&dfi>;
368 clock-names = "dmc_clk";
369 operating-points-v2 = <&dmc_opp_table>;
370 center-supply = <&ppvar_centerlogic>;
371 rockchip,pd-idle-ns = <160>;
372 rockchip,sr-idle-ns = <10240>;
373 rockchip,sr-mc-gate-idle-ns = <40960>;
374 rockchip,srpd-lite-idle-ns = <61440>;
375 rockchip,standby-idle-ns = <81920>;
379 rockchip,pd-idle-dis-freq-hz = <1000000000>;
380 rockchip,sr-idle-dis-freq-hz = <1000000000>;
381 rockchip,sr-mc-gate-idle-dis-freq-hz = <1000000000>;
382 rockchip,srpd-lite-idle-dis-freq-hz = <0>;
383 rockchip,standby-idle-dis-freq-hz = <928000000>;