NVIDIA Tegra124 SoC EMC (external memory controller)
Required properties :
- compatible : Should be “nvidia,tegra124-emc”.
- reg : physical base address and length of the controller’s registers.
- nvidia,memory-controller : phandle of the MC driver.
The node should contain a “emc-timings” subnode for each supported RAM type
(see field RAM_CODE in register PMC_STRAPPING_OPT_A), with its unit address
being its RAM_CODE.
Required properties for “emc-timings” nodes :
- nvidia,ram-code : Should contain the value of RAM_CODE this timing set is
used for.
Each “emc-timings” node should contain a “timing” subnode for every supported
EMC clock rate. The “timing” subnodes should have the clock rate in Hz as
their unit address.
Required properties for “timing” nodes :
clock-frequency : Should contain the memory clock rate in Hz.
The following properties contain EMC timing characterization values
(specified in the board documentation) :- nvidia,emc-auto-cal-config : EMC_AUTO_CAL_CONFIG
- nvidia,emc-auto-cal-config2 : EMC_AUTO_CAL_CONFIG2
- nvidia,emc-auto-cal-config3 : EMC_AUTO_CAL_CONFIG3
- nvidia,emc-auto-cal-interval : EMC_AUTO_CAL_INTERVAL
- nvidia,emc-bgbias-ctl0 : EMC_BGBIAS_CTL0
- nvidia,emc-cfg : EMC_CFG
- nvidia,emc-cfg-2 : EMC_CFG_2
- nvidia,emc-ctt-term-ctrl : EMC_CTT_TERM_CTRL
- nvidia,emc-mode-1 : Mode Register 1
- nvidia,emc-mode-2 : Mode Register 2
- nvidia,emc-mode-4 : Mode Register 4
- nvidia,emc-mode-reset : Mode Register 0
- nvidia,emc-mrs-wait-cnt : EMC_MRS_WAIT_CNT
- nvidia,emc-sel-dpd-ctrl : EMC_SEL_DPD_CTRL
- nvidia,emc-xm2dqspadctrl2 : EMC_XM2DQSPADCTRL2
- nvidia,emc-zcal-cnt-long : EMC_ZCAL_WAIT_CNT after clock change
- nvidia,emc-zcal-interval : EMC_ZCAL_INTERVAL
nvidia,emc-configuration : EMC timing characterization data. These are the
registers (see section “15.6.2 EMC Registers” in the TRM) whose values need to
be specified, according to the board documentation:EMC_RC
EMC_RFC
EMC_RFC_SLR
EMC_RAS
EMC_RP
EMC_R2W
EMC_W2R
EMC_R2P
EMC_W2P
EMC_RD_RCD
EMC_WR_RCD
EMC_RRD
EMC_REXT
EMC_WEXT
EMC_WDV
EMC_WDV_MASK
EMC_QUSE
EMC_QUSE_WIDTH
EMC_IBDLY
EMC_EINPUT
EMC_EINPUT_DURATION
EMC_PUTERM_EXTRA
EMC_PUTERM_WIDTH
EMC_PUTERM_ADJ
EMC_CDB_CNTL_1
EMC_CDB_CNTL_2
EMC_CDB_CNTL_3
EMC_QRST
EMC_QSAFE
EMC_RDV
EMC_RDV_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_TXSR
EMC_TXSRDLL
EMC_TCKE
EMC_TCKESR
EMC_TPD
EMC_TFAW
EMC_TRPAB
EMC_TCLKSTABLE
EMC_TCLKSTOP
EMC_TREFBW
EMC_FBIO_CFG6
EMC_ODT_WRITE
EMC_ODT_READ
EMC_FBIO_CFG5
EMC_CFG_DIG_DLL
EMC_CFG_DIG_DLL_PERIOD
EMC_DLL_XFORM_DQS0
EMC_DLL_XFORM_DQS1
EMC_DLL_XFORM_DQS2
EMC_DLL_XFORM_DQS3
EMC_DLL_XFORM_DQS4
EMC_DLL_XFORM_DQS5
EMC_DLL_XFORM_DQS6
EMC_DLL_XFORM_DQS7
EMC_DLL_XFORM_DQS8
EMC_DLL_XFORM_DQS9
EMC_DLL_XFORM_DQS10
EMC_DLL_XFORM_DQS11
EMC_DLL_XFORM_DQS12
EMC_DLL_XFORM_DQS13
EMC_DLL_XFORM_DQS14
EMC_DLL_XFORM_DQS15
EMC_DLL_XFORM_QUSE0
EMC_DLL_XFORM_QUSE1
EMC_DLL_XFORM_QUSE2
EMC_DLL_XFORM_QUSE3
EMC_DLL_XFORM_QUSE4
EMC_DLL_XFORM_QUSE5
EMC_DLL_XFORM_QUSE6
EMC_DLL_XFORM_QUSE7
EMC_DLL_XFORM_ADDR0
EMC_DLL_XFORM_ADDR1
EMC_DLL_XFORM_ADDR2
EMC_DLL_XFORM_ADDR3
EMC_DLL_XFORM_ADDR4
EMC_DLL_XFORM_ADDR5
EMC_DLL_XFORM_QUSE8
EMC_DLL_XFORM_QUSE9
EMC_DLL_XFORM_QUSE10
EMC_DLL_XFORM_QUSE11
EMC_DLL_XFORM_QUSE12
EMC_DLL_XFORM_QUSE13
EMC_DLL_XFORM_QUSE14
EMC_DLL_XFORM_QUSE15
EMC_DLI_TRIM_TXDQS0
EMC_DLI_TRIM_TXDQS1
EMC_DLI_TRIM_TXDQS2
EMC_DLI_TRIM_TXDQS3
EMC_DLI_TRIM_TXDQS4
EMC_DLI_TRIM_TXDQS5
EMC_DLI_TRIM_TXDQS6
EMC_DLI_TRIM_TXDQS7
EMC_DLI_TRIM_TXDQS8
EMC_DLI_TRIM_TXDQS9
EMC_DLI_TRIM_TXDQS10
EMC_DLI_TRIM_TXDQS11
EMC_DLI_TRIM_TXDQS12
EMC_DLI_TRIM_TXDQS13
EMC_DLI_TRIM_TXDQS14
EMC_DLI_TRIM_TXDQS15
EMC_DLL_XFORM_DQ0
EMC_DLL_XFORM_DQ1
EMC_DLL_XFORM_DQ2
EMC_DLL_XFORM_DQ3
EMC_DLL_XFORM_DQ4
EMC_DLL_XFORM_DQ5
EMC_DLL_XFORM_DQ6
EMC_DLL_XFORM_DQ7
EMC_XM2CMDPADCTRL
EMC_XM2CMDPADCTRL4
EMC_XM2CMDPADCTRL5
EMC_XM2DQPADCTRL2
EMC_XM2DQPADCTRL3
EMC_XM2CLKPADCTRL
EMC_XM2CLKPADCTRL2
EMC_XM2COMPPADCTRL
EMC_XM2VTTGENPADCTRL
EMC_XM2VTTGENPADCTRL2
EMC_XM2VTTGENPADCTRL3
EMC_XM2DQSPADCTRL3
EMC_XM2DQSPADCTRL4
EMC_XM2DQSPADCTRL5
EMC_XM2DQSPADCTRL6
EMC_DSR_VTTGEN_DRV
EMC_TXDSRVTTGEN
EMC_FBIO_SPARE
EMC_ZCAL_WAIT_CNT
EMC_MRS_WAIT_CNT2
EMC_CTT
EMC_CTT_DURATION
EMC_CFG_PIPE
EMC_DYN_SELF_REF_CONTROL
EMC_QPOP
Example SoC include file:
/ {
emc@7001b000 {
compatible = “nvidia,tegra124-emc”;
reg = <0x0 0x7001b000 0x0 0x1000>;
nvidia,memory-controller = <&mc>;
};
};
Example board file:
/ {
emc@7001b000 {
emc-timings-3 {
nvidia,ram-code = <3>;
timing-12750000 {
clock-frequency = <12750000>;
nvidia,emc-zcal-cnt-long = <0x00000042>;
nvidia,emc-auto-cal-interval = <0x001fffff>;
nvidia,emc-ctt-term-ctrl = <0x00000802>;
nvidia,emc-cfg = <0x73240000>;
nvidia,emc-cfg-2 = <0x000008c5>;
nvidia,emc-sel-dpd-ctrl = <0x00040128>;
nvidia,emc-bgbias-ctl0 = <0x00000008>;
nvidia,emc-auto-cal-config = <0xa1430000>;
nvidia,emc-auto-cal-config2 = <0x00000000>;
nvidia,emc-auto-cal-config3 = <0x00000000>;
nvidia,emc-mode-reset = <0x80001221>;
nvidia,emc-mode-1 = <0x80100003>;
nvidia,emc-mode-2 = <0x80200008>;
nvidia,emc-mode-4 = <0x00000000>;
nvidia,emc-configuration = <
0x00000000 /* EMC_RC */
0x00000003 /* EMC_RFC */
0x00000000 /* EMC_RFC_SLR */
0x00000000 /* EMC_RAS */
0x00000000 /* EMC_RP */
0x00000004 /* EMC_R2W */
0x0000000a /* EMC_W2R */
0x00000003 /* EMC_R2P */
0x0000000b /* EMC_W2P */
0x00000000 /* EMC_RD_RCD */
0x00000000 /* EMC_WR_RCD */
0x00000003 /* EMC_RRD */
0x00000003 /* EMC_REXT */
0x00000000 /* EMC_WEXT */
0x00000006 /* EMC_WDV */
0x00000006 /* EMC_WDV_MASK */
0x00000006 /* EMC_QUSE */
0x00000002 /* EMC_QUSE_WIDTH */
0x00000000 /* EMC_IBDLY */
0x00000005 /* EMC_EINPUT */
0x00000005 /* EMC_EINPUT_DURATION */
0x00010000 /* EMC_PUTERM_EXTRA */
0x00000003 /* EMC_PUTERM_WIDTH */
0x00000000 /* EMC_PUTERM_ADJ */
0x00000000 /* EMC_CDB_CNTL_1 */
0x00000000 /* EMC_CDB_CNTL_2 */
0x00000000 /* EMC_CDB_CNTL_3 */
0x00000004 /* EMC_QRST */
0x0000000c /* EMC_QSAFE */
0x0000000d /* EMC_RDV */
0x0000000f /* EMC_RDV_MASK */
0x00000060 /* EMC_REFRESH */
0x00000000 /* EMC_BURST_REFRESH_NUM */
0x00000018 /* EMC_PRE_REFRESH_REQ_CNT */
0x00000002 /* EMC_PDEX2WR */
0x00000002 /* EMC_PDEX2RD */
0x00000001 /* EMC_PCHG2PDEN */
0x00000000 /* EMC_ACT2PDEN */
0x00000007 /* EMC_AR2PDEN */
0x0000000f /* EMC_RW2PDEN */
0x00000005 /* EMC_TXSR */
0x00000005 /* EMC_TXSRDLL */
0x00000004 /* EMC_TCKE */
0x00000005 /* EMC_TCKESR */
0x00000004 /* EMC_TPD */
0x00000000 /* EMC_TFAW */
0x00000000 /* EMC_TRPAB */
0x00000005 /* EMC_TCLKSTABLE */
0x00000005 /* EMC_TCLKSTOP */
0x00000064 /* EMC_TREFBW */
0x00000000 /* EMC_FBIO_CFG6 */
0x00000000 /* EMC_ODT_WRITE */
0x00000000 /* EMC_ODT_READ */
0x106aa298 /* EMC_FBIO_CFG5 */
0x002c00a0 /* EMC_CFG_DIG_DLL */
0x00008000 /* EMC_CFG_DIG_DLL_PERIOD */
0x00064000 /* EMC_DLL_XFORM_DQS0 */
0x00064000 /* EMC_DLL_XFORM_DQS1 */
0x00064000 /* EMC_DLL_XFORM_DQS2 */
0x00064000 /* EMC_DLL_XFORM_DQS3 */
0x00064000 /* EMC_DLL_XFORM_DQS4 */
0x00064000 /* EMC_DLL_XFORM_DQS5 */
0x00064000 /* EMC_DLL_XFORM_DQS6 */
0x00064000 /* EMC_DLL_XFORM_DQS7 */
0x00064000 /* EMC_DLL_XFORM_DQS8 */
0x00064000 /* EMC_DLL_XFORM_DQS9 */
0x00064000 /* EMC_DLL_XFORM_DQS10 */
0x00064000 /* EMC_DLL_XFORM_DQS11 */
0x00064000 /* EMC_DLL_XFORM_DQS12 */
0x00064000 /* EMC_DLL_XFORM_DQS13 */
0x00064000 /* EMC_DLL_XFORM_DQS14 */
0x00064000 /* EMC_DLL_XFORM_DQS15 */
0x00000000 /* EMC_DLL_XFORM_QUSE0 */
0x00000000 /* EMC_DLL_XFORM_QUSE1 */
0x00000000 /* EMC_DLL_XFORM_QUSE2 */
0x00000000 /* EMC_DLL_XFORM_QUSE3 */
0x00000000 /* EMC_DLL_XFORM_QUSE4 */
0x00000000 /* EMC_DLL_XFORM_QUSE5 */
0x00000000 /* EMC_DLL_XFORM_QUSE6 */
0x00000000 /* EMC_DLL_XFORM_QUSE7 */
0x00000000 /* EMC_DLL_XFORM_ADDR0 */
0x00000000 /* EMC_DLL_XFORM_ADDR1 */
0x00000000 /* EMC_DLL_XFORM_ADDR2 */
0x00000000 /* EMC_DLL_XFORM_ADDR3 */
0x00000000 /* EMC_DLL_XFORM_ADDR4 */
0x00000000 /* EMC_DLL_XFORM_ADDR5 */
0x00000000 /* EMC_DLL_XFORM_QUSE8 */
0x00000000 /* EMC_DLL_XFORM_QUSE9 */
0x00000000 /* EMC_DLL_XFORM_QUSE10 */
0x00000000 /* EMC_DLL_XFORM_QUSE11 */
0x00000000 /* EMC_DLL_XFORM_QUSE12 */
0x00000000 /* EMC_DLL_XFORM_QUSE13 */
0x00000000 /* EMC_DLL_XFORM_QUSE14 */
0x00000000 /* EMC_DLL_XFORM_QUSE15 */
0x00000000 /* EMC_DLI_TRIM_TXDQS0 */
0x00000000 /* EMC_DLI_TRIM_TXDQS1 */
0x00000000 /* EMC_DLI_TRIM_TXDQS2 */
0x00000000 /* EMC_DLI_TRIM_TXDQS3 */
0x00000000 /* EMC_DLI_TRIM_TXDQS4 */
0x00000000 /* EMC_DLI_TRIM_TXDQS5 */
0x00000000 /* EMC_DLI_TRIM_TXDQS6 */
0x00000000 /* EMC_DLI_TRIM_TXDQS7 */
0x00000000 /* EMC_DLI_TRIM_TXDQS8 */
0x00000000 /* EMC_DLI_TRIM_TXDQS9 */
0x00000000 /* EMC_DLI_TRIM_TXDQS10 */
0x00000000 /* EMC_DLI_TRIM_TXDQS11 */
0x00000000 /* EMC_DLI_TRIM_TXDQS12 */
0x00000000 /* EMC_DLI_TRIM_TXDQS13 */
0x00000000 /* EMC_DLI_TRIM_TXDQS14 */
0x00000000 /* EMC_DLI_TRIM_TXDQS15 */
0x000fc000 /* EMC_DLL_XFORM_DQ0 */
0x000fc000 /* EMC_DLL_XFORM_DQ1 */
0x000fc000 /* EMC_DLL_XFORM_DQ2 */
0x000fc000 /* EMC_DLL_XFORM_DQ3 */
0x0000fc00 /* EMC_DLL_XFORM_DQ4 */
0x0000fc00 /* EMC_DLL_XFORM_DQ5 */
0x0000fc00 /* EMC_DLL_XFORM_DQ6 */
0x0000fc00 /* EMC_DLL_XFORM_DQ7 */
0x10000280 /* EMC_XM2CMDPADCTRL */
0x00000000 /* EMC_XM2CMDPADCTRL4 */
0x00111111 /* EMC_XM2CMDPADCTRL5 */
0x00000000 /* EMC_XM2DQPADCTRL2 */
0x00000000 /* EMC_XM2DQPADCTRL3 */
0x77ffc081 /* EMC_XM2CLKPADCTRL */
0x00000e0e /* EMC_XM2CLKPADCTRL2 */
0x81f1f108 /* EMC_XM2COMPPADCTRL */
0x07070004 /* EMC_XM2VTTGENPADCTRL */
0x0000003f /* EMC_XM2VTTGENPADCTRL2 */
0x016eeeee /* EMC_XM2VTTGENPADCTRL3 */
0x51451400 /* EMC_XM2DQSPADCTRL3 */
0x00514514 /* EMC_XM2DQSPADCTRL4 */
0x00514514 /* EMC_XM2DQSPADCTRL5 */
0x51451400 /* EMC_XM2DQSPADCTRL6 */
0x0000003f /* EMC_DSR_VTTGEN_DRV */
0x00000007 /* EMC_TXDSRVTTGEN */
0x00000000 /* EMC_FBIO_SPARE */
0x00000042 /* EMC_ZCAL_WAIT_CNT */
0x000e000e /* EMC_MRS_WAIT_CNT2 */
0x00000000 /* EMC_CTT */
0x00000003 /* EMC_CTT_DURATION */
0x0000f2f3 /* EMC_CFG_PIPE */
0x800001c5 /* EMC_DYN_SELF_REF_CONTROL */
0x0000000a /* EMC_QPOP */
>;
};
};
};
};
