linux/include/dt-bindings/clock/rk3399-ddr.h
Enric Balletbo i Serra 49502b23e0 dt-bindings: clock: add rk3399 DDR3 standard speed bins.
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>
2018-07-18 13:58:30 +09:00

57 lines
1.2 KiB
C

/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
#ifndef DT_BINDINGS_DDR_H
#define DT_BINDINGS_DDR_H
/*
* DDR3 SDRAM Standard Speed Bins include tCK, tRCD, tRP, tRAS and tRC for
* each corresponding bin.
*/
/* DDR3-800 (5-5-5) */
#define DDR3_800D 0
/* DDR3-800 (6-6-6) */
#define DDR3_800E 1
/* DDR3-1066 (6-6-6) */
#define DDR3_1066E 2
/* DDR3-1066 (7-7-7) */
#define DDR3_1066F 3
/* DDR3-1066 (8-8-8) */
#define DDR3_1066G 4
/* DDR3-1333 (7-7-7) */
#define DDR3_1333F 5
/* DDR3-1333 (8-8-8) */
#define DDR3_1333G 6
/* DDR3-1333 (9-9-9) */
#define DDR3_1333H 7
/* DDR3-1333 (10-10-10) */
#define DDR3_1333J 8
/* DDR3-1600 (8-8-8) */
#define DDR3_1600G 9
/* DDR3-1600 (9-9-9) */
#define DDR3_1600H 10
/* DDR3-1600 (10-10-10) */
#define DDR3_1600J 11
/* DDR3-1600 (11-11-11) */
#define DDR3_1600K 12
/* DDR3-1600 (10-10-10) */
#define DDR3_1866J 13
/* DDR3-1866 (11-11-11) */
#define DDR3_1866K 14
/* DDR3-1866 (12-12-12) */
#define DDR3_1866L 15
/* DDR3-1866 (13-13-13) */
#define DDR3_1866M 16
/* DDR3-2133 (11-11-11) */
#define DDR3_2133K 17
/* DDR3-2133 (12-12-12) */
#define DDR3_2133L 18
/* DDR3-2133 (13-13-13) */
#define DDR3_2133M 19
/* DDR3-2133 (14-14-14) */
#define DDR3_2133N 20
/* DDR3 ATF default */
#define DDR3_DEFAULT 21
#endif