forked from mirrors/linux
49502b23e0
DDR3 SDRAM Standard (JESD79-3F) defines some standard speed bins for
DDR3 memories. The rk3399_dmc driver allows you to pass these values via
the device tree. For that purpose the devfreq/rk3399_dmc.txt binding
refers to a ddr.h file which does not exist. This patch adds the missing
defines in a include file called rk3399-ddr.h with the definition of
standard speed bins according to the ARM Trusted Firmware (ATF).
Fixes: c1ceb8f7c1 (Documentation: bindings: add dt documentation for rk3399 dmc)
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
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#ifndef DT_BINDINGS_DDR_H
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#define DT_BINDINGS_DDR_H
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/*
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* DDR3 SDRAM Standard Speed Bins include tCK, tRCD, tRP, tRAS and tRC for
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* each corresponding bin.
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*/
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/* DDR3-800 (5-5-5) */
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#define DDR3_800D 0
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/* DDR3-800 (6-6-6) */
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#define DDR3_800E 1
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/* DDR3-1066 (6-6-6) */
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#define DDR3_1066E 2
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/* DDR3-1066 (7-7-7) */
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#define DDR3_1066F 3
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/* DDR3-1066 (8-8-8) */
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#define DDR3_1066G 4
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/* DDR3-1333 (7-7-7) */
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#define DDR3_1333F 5
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/* DDR3-1333 (8-8-8) */
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#define DDR3_1333G 6
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/* DDR3-1333 (9-9-9) */
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#define DDR3_1333H 7
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/* DDR3-1333 (10-10-10) */
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#define DDR3_1333J 8
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/* DDR3-1600 (8-8-8) */
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#define DDR3_1600G 9
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/* DDR3-1600 (9-9-9) */
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#define DDR3_1600H 10
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/* DDR3-1600 (10-10-10) */
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#define DDR3_1600J 11
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/* DDR3-1600 (11-11-11) */
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#define DDR3_1600K 12
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/* DDR3-1600 (10-10-10) */
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#define DDR3_1866J 13
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/* DDR3-1866 (11-11-11) */
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#define DDR3_1866K 14
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/* DDR3-1866 (12-12-12) */
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#define DDR3_1866L 15
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/* DDR3-1866 (13-13-13) */
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#define DDR3_1866M 16
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/* DDR3-2133 (11-11-11) */
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#define DDR3_2133K 17
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/* DDR3-2133 (12-12-12) */
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#define DDR3_2133L 18
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/* DDR3-2133 (13-13-13) */
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#define DDR3_2133M 19
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/* DDR3-2133 (14-14-14) */
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#define DDR3_2133N 20
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/* DDR3 ATF default */
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#define DDR3_DEFAULT 21
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#endif
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