Add the binding document for the external memory controller (EMC) which
communicates with external LPDDR4 devices. It includes the bindings of
the EMC node and the EMC table of different rates.
To support high rates for LPDDR4, the EMC table must be trained before
it can be used for runtime clock switching. It has been done by firmware
and merged the training data to the table that the kernel can share the
result. So the bindings are used for both kernel and firmware.
Based on the work of Peter De Schrijver <pdeschrijver@xxxxxxxxxx>.
Signed-off-by: Joseph Lo <josephl@xxxxxxxxxx>
---
This patch splits from the original patch set that supports EMC scaling
with binding document and drivers. Because the binding would be shared
by both firmware and kernel. We want to settle this first. Then we can
fix the kernel and firmware to support the same.
Changes in v2:
* only use "tegra210" string in compatible string and remove the legacy
"tegra21" string.
* clock-frequency -> fix the unit from kilohertz to hertz
* add "interrupts" property
* s/nvidia,emc-min-mv/nvidia,emc-min-millivolt/
* s/nvidia,gk20a-min-mv/nvidia,gk20a-min-millivolt/
* s/nvidia,source/clock-names/
* fix lots of properties that use underline to hyphen
* s/nvidia,emc-clock-latency-change/nvidia,emc-clock-latency-microsecond/
* add more information in the property descriptions
---
.../nvidia,tegra210-emc.txt | 614 ++++++++++++++++++
1 file changed, 614 insertions(+)
create mode 100644 Documentation/devicetree/bindings/memory-controllers/nvidia,tegra210-emc.txt
diff --git a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra210-emc.txt b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra210-emc.txt
new file mode 100644
index 000000000000..318239c3c295
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra210-emc.txt
@@ -0,0 +1,614 @@
+NVIDIA Tegra210 SoC EMC (external memory controller)
+====================================================
+
+Required properties :
+- compatible : should be "nvidia,tegra210-emc".
+- reg : physical base address and length of the controller's registers.
+- clocks : phandles of the possible source clocks
+- clock-names : names of the possible source clocks
+- interrupts : Should contain the EMC general interrupt
+- #address-cells : should be 1
+- #size-cells : should be 0
+- nvidia,memory-controller : phandle of the memory controller.
+- nvidia,use-ram-code : boolean, indicates whether we should use RAM_CODE in
+ the register to find matching emc-table nodes
+
+The node should contain a "emc-table" subnode for each supported RAM type
+(see field RAM_CODE in register APB_MISC_PP_STRAPPING_OPT_A), with its unit
+address being its RAM_CODE.
+
+Required properties for "emc-tables" nodes :
+- nvidia,ram-code : Should contain the value of RAM_CODE this timing set is
+ used for.
+
+Each "emc-tables" node should contain a "emc-table" subnode for every supported
+EMC clock rate. The "emc-table" subnodes should have the clock rate in hertz as
+their unit address.
+
+Required properties for "emc-table" nodes :
+- compatible : "nvidia,tegra210-emc-table"
+- nvidia,revision : revision of the parameter set used for this node. All
+ nodes in the same "emc-table" should have the same revision
+- nvidia,dvfs-version : string for the DVFS version of this table
+- clock-frequency : frequency in hertz
+- clock-names : name of clock source to be used for this rate
+- nvidia,emc-min-millivolt : minimum voltage in millivolt for this rate
+- nvidia,gk20a-min-millivolt : minimum GPU voltage in millivolt for this rate
+- nvidia,src-sel-reg : value of EMC CAR register to be used for this rate
+- nvidia,needs-training : 1 if needs training at boot, 0 otherwise
+- nvidia,trained : 1 if initial training has been done by firmware, 0 otherwise
+- nvidia,periodic-training : 1 if needs periodic training, 0 otherwise
+- nvidia,trained-dram-clktree-c0d0u0 : training data word
+- nvidia,trained-dram-clktree-c0d0u1 : training data word
+- nvidia,trained-dram-clktree-c0d1u0 : training data word
+- nvidia,trained-dram-clktree-c0d1u1 : training data word
+- nvidia,trained-dram-clktree-c1d0u0 : training data word
+- nvidia,trained-dram-clktree-c1d0u1 : training data word
+- nvidia,trained-dram-clktree-c1d1u0 : training data word
+- nvidia,trained-dram-clktree-c1d1u1 : training data word
+- nvidia,current-dram-clktree-c0d0u0 : training data word
+- nvidia,current-dram-clktree-c0d0u1 : training data word
+- nvidia,current-dram-clktree-c0d1u0 : training data word
+- nvidia,current-dram-clktree-c0d1u1 : training data word
+- nvidia,current-dram-clktree-c1d0u0 : training data word
+- nvidia,current-dram-clktree-c1d0u1 : training data word
+- nvidia,current-dram-clktree-c1d1u0 : training data word
+- nvidia,current-dram-clktree-c1d1u1 : training data word
+- nvidia,run-clocks : training data for clock timing of oscillator clock
+- nvidia,tree-margin : training data for clock timing
+- nvidia,burst-regs-num : number of values in nvidia,emc-registers
+- nvidia,burst-regs-per-ch-num : number of values in
+ nvidia,emc-burst-regs-per-ch
+- nvidia,trim-regs-num : number of values in nvidia,emc-trim-regs
+- nvidia,trim-regs-per-ch-num : number of values in nvidia,emc-trim-regs-per-ch
+- nvidia,burst-mc-regs-num : number of values in nvidia,emc-burst-mc-regs
+- nvidia,la-scale-regs-num : number of values in nvidia,emc-la-scale-regs
+- nvidia,vref-regs-num : number of values in nvidia,emc-vref-regs
+- nvidia,training-mod-regs-num : number of values in nvidia,training-mod-regs
+- nvidia,dram-timing-regs-num : number of values in nvidia,emc-dram-timing-regs
+- nvidia,min-mrs-wait : number of EMC clock count to wait for MRS command
+- nvidia,emc-mrw : value of the EMC_MRW register
+- nvidia,emc-mrw2 : value of the EMC_MRW2 register
+- nvidia,emc-mrw3 : value of the EMC_MRW3 register
+- nvidia,emc-mrw4 : value of the EMC_MRW4 register
+- nvidia,emc-mrw9 : value of the EMC_MRW4 register
+- nvidia,emc-mrs : value of the EMC_MRS register
+- nvidia,emc-emrs : value of the EMC_EMRS register
+- nvidia,emc-emrs2 : value of the EMC_EMRS2 register
+- nvidia,emc-auto-cal-config : value of the EMC_AUTO_CAL_CONFIG register
+- nvidia,emc-auto-cal-config2 : value of the EMC_AUTO_CAL_CONFIG2 register
+- nvidia,emc-auto-cal-config3 : value of the EMC_AUTO_CAL_CONFIG3 register
+- nvidia,emc-auto-cal-config4 : value of the EMC_AUTO_CAL_CONFIG4 register
+- nvidia,emc-auto-cal-config5 : value of the EMC_AUTO_CAL_CONFIG5 register
+- nvidia,emc-auto-cal-config6 : value of the EMC_AUTO_CAL_CONFIG6 register
+- nvidia,emc-auto-cal-config7 : value of the EMC_AUTO_CAL_CONFIG7 register
+- nvidia,emc-auto-cal-config8 : value of the EMC_AUTO_CAL_CONFIG8 register
+- nvidia,emc-cfg-2 : value of the EMC_CFG_2 register
+- nvidia,emc-sel-dpd-ctrl : value of the EMC_SEL_DPD_CTRL register
+- nvidia,emc-fdpd-ctrl-cmd-no-ramp : value of the EMC_FDPD_CTRL_CMD_NO_RAMP
+ register
+- nvidia,dll-clk-src : value of the CLK_RST_CONTROLLER_CLK_SOURCE_EMC_DLL
+ register
+- nvidia,clk-out-enb-x-0-clk-enb-emc-dll : 1 for enable EMC_DLL in the
+ CLK_RST_CONTROLLER_CLK_OUT_ENB_X_SET,
+ or 0 for clear in the
+ CLK_RST_CONTROLLER_CLK_OUT_ENB_X_CLR
+- nvidia,emc-clock-latency-microsecond : clock latency value in micro seconds
+- nvidia,ptfv : a 12 word array of control data for periodic training
+- nvidia,emc-registers :
+- nvidia,emc-shadow-regs-ca-train :
+- nvidia,emc-shadow-regs-quse-train :
+- nvidia,emc-shadow-regs-rdwr-train :
+ a 221 word array of the following registers (See TRM 18.10.2 for register
+ descriptions)
+ EMC_RC
+ EMC_RFC
+ EMC_RFCPB
+ EMC_REFCTRL2
+ EMC_RFC_SLR
+ EMC_RAS
+ EMC_RP
+ EMC_R2W
+ EMC_W2R
+ EMC_R2P
+ EMC_W2P
+ EMC_R2R
+ EMC_TPPD
+ EMC_CCDMW
+ EMC_RD_RCD
+ EMC_WR_RCD
+ EMC_RRD
+ EMC_REXT
+ EMC_WEXT
+ EMC_WDV_CHK
+ EMC_WDV
+ EMC_WSV
+ EMC_WEV
+ EMC_WDV_MASK
+ EMC_WS_DURATION
+ EMC_WE_DURATION
+ EMC_QUSE
+ EMC_QUSE_WIDTH
+ EMC_IBDLY
+ EMC_OBDLY
+ EMC_EINPUT
+ EMC_MRW6
+ EMC_EINPUT_DURATION
+ EMC_PUTERM_EXTRA
+ EMC_PUTERM_WIDTH
+ EMC_QRST
+ EMC_QSAFE
+ EMC_RDV
+ EMC_RDV_MASK
+ EMC_RDV_EARLY
+ EMC_RDV_EARLY_MASK
+ EMC_REFRESH
+ EMC_BURST_REFRESH_NUM
+ EMC_PRE_REFRESH_REQ_CNT
+ EMC_PDEX2WR
+ EMC_PDEX2RD
+ EMC_PCHG2PDEN
+ EMC_ACT2PDEN
+ EMC_AR2PDEN
+ EMC_RW2PDEN
+ EMC_CKE2PDEN
+ EMC_PDEX2CKE
+ EMC_PDEX2MRR
+ EMC_TXSR
+ EMC_TXSRDLL
+ EMC_TCKE
+ EMC_TCKESR
+ EMC_TPD
+ EMC_TFAW
+ EMC_TRPAB
+ EMC_TCLKSTABLE
+ EMC_TCLKSTOP
+ EMC_MRW7
+ EMC_TREFBW
+ EMC_ODT_WRITE
+ EMC_FBIO_CFG5
+ EMC_FBIO_CFG7
+ EMC_CFG_DIG_DLL
+ EMC_CFG_DIG_DLL_PERIOD
+ EMC_PMACRO_IB_RXRT
+ EMC_CFG_PIPE_1
+ EMC_CFG_PIPE_2
+ EMC_PMACRO_QUSE_DDLL_RANK0_4
+ EMC_PMACRO_QUSE_DDLL_RANK0_5
+ EMC_PMACRO_QUSE_DDLL_RANK1_4
+ EMC_PMACRO_QUSE_DDLL_RANK1_5
+ EMC_MRW8
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_4
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_5
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_0
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_1
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_2
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_3
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_4
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_5
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_0
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_1
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_2
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_3
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_4
+ EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_5
+ EMC_PMACRO_DDLL_LONG_CMD_0
+ EMC_PMACRO_DDLL_LONG_CMD_1
+ EMC_PMACRO_DDLL_LONG_CMD_2
+ EMC_PMACRO_DDLL_LONG_CMD_3
+ EMC_PMACRO_DDLL_LONG_CMD_4
+ EMC_PMACRO_DDLL_SHORT_CMD_0
+ EMC_PMACRO_DDLL_SHORT_CMD_1
+ EMC_PMACRO_DDLL_SHORT_CMD_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE0_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE1_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE2_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE3_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE4_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE5_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE6_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE7_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD0_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD1_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD2_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD3_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE0_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE1_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE2_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE3_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE4_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE5_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE6_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE7_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD0_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD0_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD0_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD0_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD1_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD1_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD1_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD1_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD2_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD2_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD2_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD2_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD3_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD3_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD3_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_CMD3_3
+ EMC_TXDSRVTTGEN
+ EMC_FDPD_CTRL_DQ
+ EMC_FDPD_CTRL_CMD
+ EMC_FBIO_SPARE
+ EMC_ZCAL_INTERVAL
+ EMC_ZCAL_WAIT_CNT
+ EMC_MRS_WAIT_CNT
+ EMC_MRS_WAIT_CNT2
+ EMC_AUTO_CAL_CHANNEL
+ EMC_DLL_CFG_0
+ EMC_DLL_CFG_1
+ EMC_PMACRO_AUTOCAL_CFG_COMMON
+ EMC_PMACRO_ZCTRL
+ EMC_CFG
+ EMC_CFG_PIPE
+ EMC_DYN_SELF_REF_CONTROL
+ EMC_QPOP
+ EMC_DQS_BRLSHFT_0
+ EMC_DQS_BRLSHFT_1
+ EMC_CMD_BRLSHFT_2
+ EMC_CMD_BRLSHFT_3
+ EMC_PMACRO_PAD_CFG_CTRL
+ EMC_PMACRO_DATA_PAD_RX_CTRL
+ EMC_PMACRO_CMD_PAD_RX_CTRL
+ EMC_PMACRO_DATA_RX_TERM_MODE
+ EMC_PMACRO_CMD_RX_TERM_MODE
+ EMC_PMACRO_CMD_PAD_TX_CTRL
+ EMC_PMACRO_DATA_PAD_TX_CTRL
+ EMC_PMACRO_COMMON_PAD_TX_CTRL
+ EMC_PMACRO_VTTGEN_CTRL_0
+ EMC_PMACRO_VTTGEN_CTRL_1
+ EMC_PMACRO_VTTGEN_CTRL_2
+ EMC_PMACRO_BRICK_CTRL_RFU1
+ EMC_PMACRO_CMD_BRICK_CTRL_FDPD
+ EMC_PMACRO_BRICK_CTRL_RFU2
+ EMC_PMACRO_DATA_BRICK_CTRL_FDPD
+ EMC_PMACRO_BG_BIAS_CTRL_0
+ EMC_CFG_3
+ EMC_PMACRO_TX_PWRD_0
+ EMC_PMACRO_TX_PWRD_1
+ EMC_PMACRO_TX_PWRD_2
+ EMC_PMACRO_TX_PWRD_3
+ EMC_PMACRO_TX_PWRD_4
+ EMC_PMACRO_TX_PWRD_5
+ EMC_CONFIG_SAMPLE_DELAY
+ EMC_PMACRO_TX_SEL_CLK_SRC_0
+ EMC_PMACRO_TX_SEL_CLK_SRC_1
+ EMC_PMACRO_TX_SEL_CLK_SRC_2
+ EMC_PMACRO_TX_SEL_CLK_SRC_3
+ EMC_PMACRO_TX_SEL_CLK_SRC_4
+ EMC_PMACRO_TX_SEL_CLK_SRC_5
+ EMC_PMACRO_DDLL_BYPASS
+ EMC_PMACRO_DDLL_PWRD_0
+ EMC_PMACRO_DDLL_PWRD_1
+ EMC_PMACRO_DDLL_PWRD_2
+ EMC_PMACRO_CMD_CTRL_0
+ EMC_PMACRO_CMD_CTRL_1
+ EMC_PMACRO_CMD_CTRL_2
+ EMC_TR_TIMING_0
+ EMC_TR_DVFS
+ EMC_TR_CTRL_1
+ EMC_TR_RDV
+ EMC_TR_QPOP
+ EMC_TR_RDV_MASK
+ EMC_MRW14
+ EMC_TR_QSAFE
+ EMC_TR_QRST
+ EMC_TRAINING_CTRL
+ EMC_TRAINING_SETTLE
+ EMC_TRAINING_VREF_SETTLE
+ EMC_TRAINING_CA_FINE_CTRL
+ EMC_TRAINING_CA_CTRL_MISC
+ EMC_TRAINING_CA_CTRL_MISC1
+ EMC_TRAINING_CA_VREF_CTRL
+ EMC_TRAINING_QUSE_CORS_CTRL
+ EMC_TRAINING_QUSE_FINE_CTRL
+ EMC_TRAINING_QUSE_CTRL_MISC
+ EMC_TRAINING_QUSE_VREF_CTRL
+ EMC_TRAINING_READ_FINE_CTRL
+ EMC_TRAINING_READ_CTRL_MISC
+ EMC_TRAINING_READ_VREF_CTRL
+ EMC_TRAINING_WRITE_FINE_CTRL
+ EMC_TRAINING_WRITE_CTRL_MISC
+ EMC_TRAINING_WRITE_VREF_CTRL
+ EMC_TRAINING_MPC
+ EMC_MRW15
+- nvidia,emc-burst-regs-per-ch : a 8 word array of the following registers (See
+ TRM 18.10.2 for register descriptions) the
+ array containts 2 values for each register,
+ one per channel.
+ EMC_MRW10
+ EMC_MRW11
+ EMC_MRW12
+ EMC_MRW13
+- nvidia,emc-trim-regs : a 138 word array of the following registers (See TRM
+ 18.10.2 for register descriptions)
+ EMC_PMACRO_IB_DDLL_LONG_DQS_RANK0_0
+ EMC_PMACRO_IB_DDLL_LONG_DQS_RANK0_1
+ EMC_PMACRO_IB_DDLL_LONG_DQS_RANK0_2
+ EMC_PMACRO_IB_DDLL_LONG_DQS_RANK0_3
+ EMC_PMACRO_IB_DDLL_LONG_DQS_RANK1_0
+ EMC_PMACRO_IB_DDLL_LONG_DQS_RANK1_1
+ EMC_PMACRO_IB_DDLL_LONG_DQS_RANK1_2
+ EMC_PMACRO_IB_DDLL_LONG_DQS_RANK1_3
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE0_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE0_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE0_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE1_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE1_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE1_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE2_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE2_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE2_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE3_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE3_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE3_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE4_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE4_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE4_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE5_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE5_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE5_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE6_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE6_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE6_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE7_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE7_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK0_BYTE7_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE0_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE0_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE0_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE1_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE1_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE1_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE2_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE2_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE2_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE3_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE3_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE3_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE4_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE4_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE4_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE5_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE5_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE5_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE6_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE6_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE6_2
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE7_0
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE7_1
+ EMC_PMACRO_IB_DDLL_SHORT_DQ_RANK1_BYTE7_2
+ EMC_PMACRO_IB_VREF_DQS_0
+ EMC_PMACRO_IB_VREF_DQS_1
+ EMC_PMACRO_IB_VREF_DQ_0
+ EMC_PMACRO_IB_VREF_DQ_1
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_0
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_1
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_2
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_3
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_4
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_5
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_0
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_1
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_2
+ EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_3
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE0_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE0_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE0_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE1_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE1_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE1_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE2_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE2_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE2_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE3_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE3_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE3_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE4_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE4_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE4_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE5_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE5_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE5_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE6_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE6_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE6_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE7_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE7_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_BYTE7_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD0_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD0_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD0_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD1_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD1_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD1_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD2_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD2_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD2_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD3_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD3_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK0_CMD3_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE0_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE0_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE0_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE1_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE1_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE1_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE2_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE2_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE2_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE3_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE3_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE3_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE4_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE4_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE4_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE5_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE5_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE5_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE6_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE6_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE6_2
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE7_0
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE7_1
+ EMC_PMACRO_OB_DDLL_SHORT_DQ_RANK1_BYTE7_2
+ EMC_PMACRO_QUSE_DDLL_RANK0_0
+ EMC_PMACRO_QUSE_DDLL_RANK0_1
+ EMC_PMACRO_QUSE_DDLL_RANK0_2
+ EMC_PMACRO_QUSE_DDLL_RANK0_3
+ EMC_PMACRO_QUSE_DDLL_RANK1_0
+ EMC_PMACRO_QUSE_DDLL_RANK1_1
+ EMC_PMACRO_QUSE_DDLL_RANK1_2
+ EMC_PMACRO_QUSE_DDLL_RANK1_3
+- nvidia,emc-trim-regs-per-ch : a 10 word array of the following registers (See
+ TRM 18.10.2 for register descriptions)
+ EMC_CMD_BRLSHFT_0
+ EMC_CMD_BRLSHFT_1
+ EMC_DATA_BRLSHFT_0 (channel 0)
+ EMC_DATA_BRLSHFT_0 (channel 1)
+ EMC_DATA_BRLSHFT_1 (channel 0)
+ EMC_DATA_BRLSHFT_1 (channel 1)
+ EMC_QUSE_BRLSHFT_0
+ EMC_QUSE_BRLSHFT_1
+ EMC_QUSE_BRLSHFT_2
+ EMC_QUSE_BRLSHFT_3
+- nvidia,emc-vref-regs : a 4 word array of the following registers (See TRM
+ 18.10.2 for register descriptions) the array containts
+ 2 values for each register, one per channel.
+ EMC_TRAINING_OPT_DQS_IB_VREF_RANK0
+ EMC_TRAINING_OPT_DQS_IB_VREF_RANK1
+- nvidia,emc-dram-timing-regs : a 5 word array of DRAM timing values. These are
+ not written to registers but used during the
+ sequence.
+ T_RP : row pre-charge delay
+ T_FC_LPDDR4 : frequency change time
+ T_RFC : refresh cycle time
+ T_PDEX : power down exit delay
+ RL : mode register read latency
+- nvidia,emc-training-mod-regs : a 20 word array of training mod registers
+- nvidia,emc-save-restore-mod-regs : a 12 word array of save-restore mod
+ registers
+- nvidia,emc-burst-mc-regs : a 33 word array of the following registers
+ (See TRM 18.10.1 for register descriptions)
+ MC_EMEM_ARB_CFG
+ MC_EMEM_ARB_OUTSTANDING_REQ
+ MC_EMEM_ARB_REFPB_HP_CTRL
+ MC_EMEM_ARB_REFPB_BANK_CTRL
+ MC_EMEM_ARB_TIMING_RCD
+ MC_EMEM_ARB_TIMING_RP
+ MC_EMEM_ARB_TIMING_RC
+ MC_EMEM_ARB_TIMING_RAS
+ MC_EMEM_ARB_TIMING_FAW
+ MC_EMEM_ARB_TIMING_RRD
+ MC_EMEM_ARB_TIMING_RAP2PRE
+ MC_EMEM_ARB_TIMING_WAP2PRE
+ MC_EMEM_ARB_TIMING_R2R
+ MC_EMEM_ARB_TIMING_W2W
+ MC_EMEM_ARB_TIMING_R2W
+ MC_EMEM_ARB_TIMING_CCDMW
+ MC_EMEM_ARB_TIMING_W2R
+ MC_EMEM_ARB_TIMING_RFCPB
+ MC_EMEM_ARB_DA_TURNS
+ MC_EMEM_ARB_DA_COVERS
+ MC_EMEM_ARB_MISC0
+ MC_EMEM_ARB_MISC1
+ MC_EMEM_ARB_MISC2
+ MC_EMEM_ARB_RING1_THROTTLE
+ MC_EMEM_ARB_DHYST_CTRL
+ MC_EMEM_ARB_DHYST_TIMEOUT_UTIL_0
+ MC_EMEM_ARB_DHYST_TIMEOUT_UTIL_1
+ MC_EMEM_ARB_DHYST_TIMEOUT_UTIL_2
+ MC_EMEM_ARB_DHYST_TIMEOUT_UTIL_3
+ MC_EMEM_ARB_DHYST_TIMEOUT_UTIL_4
+ MC_EMEM_ARB_DHYST_TIMEOUT_UTIL_5
+ MC_EMEM_ARB_DHYST_TIMEOUT_UTIL_6
+ MC_EMEM_ARB_DHYST_TIMEOUT_UTIL_7
+- nvidia,emc-la-scale-regs : a 24 word array of the following registers
+ (See TRM 18.10.1 for register descriptions)
+ MC_MLL_MPCORER_PTSA_RATE
+ MC_FTOP_PTSA_RATE
+ MC_PTSA_GRANT_DECREMENT
+ MC_LATENCY_ALLOWANCE_XUSB_0
+ MC_LATENCY_ALLOWANCE_XUSB_1
+ MC_LATENCY_ALLOWANCE_TSEC_0
+ MC_LATENCY_ALLOWANCE_SDMMCA_0
+ MC_LATENCY_ALLOWANCE_SDMMCAA_0
+ MC_LATENCY_ALLOWANCE_SDMMC_0
+ MC_LATENCY_ALLOWANCE_SDMMCAB_0
+ MC_LATENCY_ALLOWANCE_PPCS_0
+ MC_LATENCY_ALLOWANCE_PPCS_1
+ MC_LATENCY_ALLOWANCE_MPCORE_0
+ MC_LATENCY_ALLOWANCE_HC_0
+ MC_LATENCY_ALLOWANCE_HC_1
+ MC_LATENCY_ALLOWANCE_AVPC_0
+ MC_LATENCY_ALLOWANCE_GPU_0
+ MC_LATENCY_ALLOWANCE_GPU2_0
+ MC_LATENCY_ALLOWANCE_NVENC_0
+ MC_LATENCY_ALLOWANCE_NVDEC_0
+ MC_LATENCY_ALLOWANCE_VIC_0
+ MC_LATENCY_ALLOWANCE_VI2_0
+ MC_LATENCY_ALLOWANCE_ISP2_0
+ MC_LATENCY_ALLOWANCE_ISP2_1
+
+Example:
+ external-memory-controller@7001b000 {
+ compatible = "nvidia,tegra210-emc";
+ reg = <0x0 0x7001b000 0x0 0x1000>,
+ <0x0 0x7001e000 0x0 0x1000>,
+ <0x0 0x7001f000 0x0 0x1000>;
+ clocks = <&tegra_car TEGRA210_CLK_EMC>,
+ <&tegra_car TEGRA210_CLK_PLL_M>,
+ <&tegra_car TEGRA210_CLK_PLL_C>,
+ <&tegra_car TEGRA210_CLK_PLL_P>,
+ <&tegra_car TEGRA210_CLK_CLK_M>,
+ <&tegra_car TEGRA210_CLK_PLL_M_UD>,
+ <&tegra_car TEGRA210_CLK_PLL_MB_UD>,
+ <&tegra_car TEGRA210_CLK_PLL_MB>,
+ <&tegra_car TEGRA210_CLK_PLL_P_UD>;
+ clock-names = "emc", "pll_m", "pll_c", "pll_p", "clk_m",
+ "pll_m_ud", "pll_mb_ud", "pll_mb", "pll_p_ud";
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ nvidia,memory-controller = <&mc>;
+ nvidia,use-ram-code;
+
+ emc-tables-0 {
+ nvidia,ram-code = <0>;
+
+ emc-table-40800000 {
+ compatible = "nvidia,tegra210-emc-table";
+ clock-frequency = <40800000>;
+ ...
+ };
+ emc-table-204000000 {
+ ...
+ };
+ ...
+ };
+
+ emc-tables-1 {
+ nvidia,ram-code = <1>;
+
+ emc-table-40800000 {
+ compatible = "nvidia,tegra210-emc-table";
+ clock-frequency = <40800000>;
+ ...
+ };
+ emc-table-204000000 {
+ ...
+ };
+ ...
+ };
+ };
--
2.21.0
