These DRAM configuration properties are all handled in ARM Trusted
Firmware (and have been since the early days of this SoC), and there are
no in-tree users of the DMC binding yet. It's better to just defer to
firmware instead of maintaining this large list of properties.
There's also some confusion about units: many of these are specified in
MHz, but the downstream users and driver code are treating them as Hz, I
believe. Rather than straighten all that out, I just drop them.
Signed-off-by: Brian Norris <briannorris@xxxxxxxxxxxx>
---
.../bindings/devfreq/rk3399_dmc.yaml | 42 +++++++++----------
1 file changed, 21 insertions(+), 21 deletions(-)
diff --git a/Documentation/devicetree/bindings/devfreq/rk3399_dmc.yaml b/Documentation/devicetree/bindings/devfreq/rk3399_dmc.yaml
index f12f34d93378..6bb411dddb7b 100644
--- a/Documentation/devicetree/bindings/devfreq/rk3399_dmc.yaml
+++ b/Documentation/devicetree/bindings/devfreq/rk3399_dmc.yaml
@@ -58,6 +58,7 @@ properties:
finishes a DCF interrupt is triggered.
rockchip,ddr3_speed_bin:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
For values, reference include/dt-bindings/clock/rk3399-ddr.h. Selects the
@@ -104,6 +105,7 @@ properties:
if bus is idle for standby_idle * DFI clock cycles.
rockchip,dram_dll_dis_freq:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description: |
Defines the DDR3 DLL bypass frequency in MHz. When DDR frequency is less
@@ -111,6 +113,7 @@ properties:
Note: if DLL was bypassed, the odt will also stop working.
rockchip,phy_dll_dis_freq:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description: |
Defines the PHY dll bypass frequency in MHz (Mega Hz). When DDR frequency
@@ -118,6 +121,7 @@ properties:
Note: PHY DLL and PHY ODT are independent.
rockchip,auto_pd_dis_freq:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
Defines the auto PD disable frequency in MHz.
@@ -131,18 +135,21 @@ properties:
disabled.
rockchip,ddr3_drv:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is DDR3, this parameter defines the DRAM side drive
strength in ohms. Default value is 40.
rockchip,ddr3_odt:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is DDR3, this parameter defines the DRAM side ODT
strength in ohms. Default value is 120.
rockchip,phy_ddr3_ca_drv:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is DDR3, this parameter defines the phy side CA line
@@ -150,12 +157,14 @@ properties:
Default value is 40.
rockchip,phy_ddr3_dq_drv:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is DDR3, this parameter defines the PHY side DQ line
(including DQS/DQ/DM line) drive strength. Default value is 40.
rockchip,phy_ddr3_odt:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is DDR3, this parameter defines the PHY side ODT
@@ -170,18 +179,21 @@ properties:
disabled.
rockchip,lpddr3_drv:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR3, this parameter defines the DRAM side drive
strength in ohms. Default value is 34.
rockchip,lpddr3_odt:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR3, this parameter defines the DRAM side ODT
strength in ohms. Default value is 240.
rockchip,phy_lpddr3_ca_drv:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR3, this parameter defines the PHY side CA line
@@ -189,12 +201,14 @@ properties:
Default value is 40.
rockchip,phy_lpddr3_dq_drv:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR3, this parameter defines the PHY side DQ line
(including DQS/DQ/DM line) drive strength. Default value is 40.
rockchip,phy_lpddr3_odt:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When dram type is LPDDR3, this parameter define the phy side odt
@@ -209,42 +223,49 @@ properties:
disabled.
rockchip,lpddr4_drv:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR4, this parameter defines the DRAM side drive
strength in ohms. Default value is 60.
rockchip,lpddr4_dq_odt:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR4, this parameter defines the DRAM side ODT on
DQS/DQ line strength in ohms. Default value is 40.
rockchip,lpddr4_ca_odt:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR4, this parameter defines the DRAM side ODT on
CA line strength in ohms. Default value is 40.
rockchip,phy_lpddr4_ca_drv:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR4, this parameter defines the PHY side CA line
(including command address line) drive strength. Default value is 40.
rockchip,phy_lpddr4_ck_cs_drv:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR4, this parameter defines the PHY side clock
line and CS line drive strength. Default value is 80.
rockchip,phy_lpddr4_dq_drv:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR4, this parameter defines the PHY side DQ line
(including DQS/DQ/DM line) drive strength. Default value is 80.
rockchip,phy_lpddr4_odt:
+ deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description:
When the DRAM type is LPDDR4, this parameter defines the PHY side ODT
@@ -265,33 +286,12 @@ examples:
clock-names = "dmc_clk";
operating-points-v2 = <&dmc_opp_table>;
center-supply = <&ppvar_centerlogic>;
- rockchip,ddr3_speed_bin = <21>;
rockchip,pd_idle = <0x40>;
rockchip,sr_idle = <0x2>;
rockchip,sr_mc_gate_idle = <0x3>;
rockchip,srpd_lite_idle = <0x4>;
rockchip,standby_idle = <0x2000>;
- rockchip,dram_dll_dis_freq = <300>;
- rockchip,phy_dll_dis_freq = <125>;
- rockchip,auto_pd_dis_freq = <666>;
rockchip,ddr3_odt_dis_freq = <333>;
- rockchip,ddr3_drv = <40>;
- rockchip,ddr3_odt = <120>;
- rockchip,phy_ddr3_ca_drv = <40>;
- rockchip,phy_ddr3_dq_drv = <40>;
- rockchip,phy_ddr3_odt = <240>;
rockchip,lpddr3_odt_dis_freq = <333>;
- rockchip,lpddr3_drv = <34>;
- rockchip,lpddr3_odt = <240>;
- rockchip,phy_lpddr3_ca_drv = <40>;
- rockchip,phy_lpddr3_dq_drv = <40>;
- rockchip,phy_lpddr3_odt = <240>;
rockchip,lpddr4_odt_dis_freq = <333>;
- rockchip,lpddr4_drv = <60>;
- rockchip,lpddr4_dq_odt = <40>;
- rockchip,lpddr4_ca_odt = <40>;
- rockchip,phy_lpddr4_ca_drv = <40>;
- rockchip,phy_lpddr4_ck_cs_drv = <80>;
- rockchip,phy_lpddr4_dq_drv = <80>;
- rockchip,phy_lpddr4_odt = <60>;
};
--
2.34.1.575.g55b058a8bb-goog
