ST,stm32mp1 DDR3/LPDDR2/LPDDR3 Controller (DDRCTRL and DDRPHYC)
--------------------
Required properties:
--------------------
- compatible : Should be "st,stm32mp1-ddr" for STM32MP15x
Should be "st,stm32mp13-ddr" for STM32MP13x
- reg : controleur (DDRCTRL) and phy (DDRPHYC) base address
- clocks : controller clocks handle
- clock-names : associated controller clock names
the "ddrphyc" clock is used to check the DDR frequency
at phy level according the expected value in "mem-speed" field
the next attributes are DDR parameters, they are generated by DDR tools
included in STM32 Cube tool
They are required only in SPL, when TFABOOT is not activated.
info attributes:
----------------
- st,mem-name : name for DDR configuration, simple string for information
- st,mem-speed : DDR expected speed for the setting in kHz
- st,mem-size : DDR mem size in byte
controlleur attributes:
-----------------------
- st,ctl-reg : controleur values depending of the DDR type
(DDR3/LPDDR2/LPDDR3)
for STM32MP15x and STM32MP13x: 25 values are requested in this order
MSTR
MRCTRL0
MRCTRL1
DERATEEN
DERATEINT
PWRCTL
PWRTMG
HWLPCTL
RFSHCTL0
RFSHCTL3
CRCPARCTL0
ZQCTL0
DFITMG0
DFITMG1
DFILPCFG0
DFIUPD0
DFIUPD1
DFIUPD2
DFIPHYMSTR
ODTMAP
DBG0
DBG1
DBGCMD
POISONCFG
PCCFG
- st,ctl-timing : controleur values depending of frequency and timing parameter
of DDR
for STM32MP15x and STM32MP13x: 12 values are requested in this order
RFSHTMG
DRAMTMG0
DRAMTMG1
DRAMTMG2
DRAMTMG3
DRAMTMG4
DRAMTMG5
DRAMTMG6
DRAMTMG7
DRAMTMG8
DRAMTMG14
ODTCFG
- st,ctl-map : controleur values depending of address mapping
for STM32MP15x and STM32MP13x: 9 values are requested in this order
ADDRMAP1
ADDRMAP2
ADDRMAP3
ADDRMAP4
ADDRMAP5
ADDRMAP6
ADDRMAP9
ADDRMAP10
ADDRMAP11
- st,ctl-perf : controleur values depending of performance and scheduling
for STM32MP15x: 17 values are requested in this order
SCHED
SCHED1
PERFHPR1
PERFLPR1
PERFWR1
PCFGR_0
PCFGW_0
PCFGQOS0_0
PCFGQOS1_0
PCFGWQOS0_0
PCFGWQOS1_0
PCFGR_1
PCFGW_1
PCFGQOS0_1
PCFGQOS1_1
PCFGWQOS0_1
PCFGWQOS1_1
for STM32MP13x: 11 values are requested in this order
SCHED
SCHED1
PERFHPR1
PERFLPR1
PERFWR1
PCFGR_0
PCFGW_0
PCFGQOS0_0
PCFGQOS1_0
PCFGWQOS0_0
PCFGWQOS1_0
phyc attributes:
----------------
- st,phy-reg : phy values depending of the DDR type (DDR3/LPDDR2/LPDDR3)
for STM32MP15x: 11 values are requested in this order
PGCR
ACIOCR
DXCCR
DSGCR
DCR
ODTCR
ZQ0CR1
DX0GCR
DX1GCR
DX2GCR
DX3GCR
for STM32MP13x: 9 values are requested in this order
PGCR
ACIOCR
DXCCR
DSGCR
DCR
ODTCR
ZQ0CR1
DX0GCR
DX1GCR
- st,phy-timing : phy values depending of frequency and timing parameter of DDR
for STM32MP15x and STM32MP13x: 10 values are requested in this order
PTR0
PTR1
PTR2
DTPR0
DTPR1
DTPR2
MR0
MR1
MR2
MR3
for STM32MP13x: 6 values are requested in this order
DX0DLLCR
DX0DQTR
DX0DQSTR
DX1DLLCR
DX1DQTR
DX1DQSTR
Example:
/ {
soc {
ddr: ddr@0x5A003000{
compatible = "st,stm32mp1-ddr";
reg = <0x5A003000 0x550
0x5A004000 0x234>;
clocks = <&rcc_clk AXIDCG>,
<&rcc_clk DDRC1>,
<&rcc_clk DDRC2>,
<&rcc_clk DDRPHYC>,
<&rcc_clk DDRCAPB>,
<&rcc_clk DDRPHYCAPB>;
clock-names = "axidcg",
"ddrc1",
"ddrc2",
"ddrphyc",
"ddrcapb",
"ddrphycapb";
st,mem-name = "DDR3 2x4Gb 533MHz";
st,mem-speed = <533000>;
st,mem-size = <0x40000000>;
st,ctl-reg = <
0x00040401 /*MSTR*/
0x00000010 /*MRCTRL0*/
0x00000000 /*MRCTRL1*/
0x00000000 /*DERATEEN*/
0x00800000 /*DERATEINT*/
0x00000000 /*PWRCTL*/
0x00400010 /*PWRTMG*/
0x00000000 /*HWLPCTL*/
0x00210000 /*RFSHCTL0*/
0x00000000 /*RFSHCTL3*/
0x00000000 /*CRCPARCTL0*/
0xC2000040 /*ZQCTL0*/
0x02050105 /*DFITMG0*/
0x00000202 /*DFITMG1*/
0x07000000 /*DFILPCFG0*/
0xC0400003 /*DFIUPD0*/
0x00000000 /*DFIUPD1*/
0x00000000 /*DFIUPD2*/
0x00000000 /*DFIPHYMSTR*/
0x00000001 /*ODTMAP*/
0x00000000 /*DBG0*/
0x00000000 /*DBG1*/
0x00000000 /*DBGCMD*/
0x00000000 /*POISONCFG*/
0x00000010 /*PCCFG*/
>;
st,ctl-timing = <
0x0080008A /*RFSHTMG*/
0x121B2414 /*DRAMTMG0*/
0x000D041B /*DRAMTMG1*/
0x0607080E /*DRAMTMG2*/
0x0050400C /*DRAMTMG3*/
0x07040407 /*DRAMTMG4*/
0x06060303 /*DRAMTMG5*/
0x02020002 /*DRAMTMG6*/
0x00000202 /*DRAMTMG7*/
0x00001005 /*DRAMTMG8*/
0x000D041B /*DRAMTMG1*/4
0x06000600 /*ODTCFG*/
>;
st,ctl-map = <
0x00080808 /*ADDRMAP1*/
0x00000000 /*ADDRMAP2*/
0x00000000 /*ADDRMAP3*/
0x00001F1F /*ADDRMAP4*/
0x07070707 /*ADDRMAP5*/
0x0F070707 /*ADDRMAP6*/
0x00000000 /*ADDRMAP9*/
0x00000000 /*ADDRMAP10*/
0x00000000 /*ADDRMAP11*/
>;
st,ctl-perf = <
0x00001201 /*SCHED*/
0x00001201 /*SCHED*/1
0x01000001 /*PERFHPR1*/
0x08000200 /*PERFLPR1*/
0x08000400 /*PERFWR1*/
0x00010000 /*PCFGR_0*/
0x00000000 /*PCFGW_0*/
0x02100B03 /*PCFGQOS0_0*/
0x00800100 /*PCFGQOS1_0*/
0x01100B03 /*PCFGWQOS0_0*/
0x01000200 /*PCFGWQOS1_0*/
0x00010000 /*PCFGR_1*/
0x00000000 /*PCFGW_1*/
0x02100B03 /*PCFGQOS0_1*/
0x00800000 /*PCFGQOS1_1*/
0x01100B03 /*PCFGWQOS0_1*/
0x01000200 /*PCFGWQOS1_1*/
>;
st,phy-reg = <
0x01442E02 /*PGCR*/
0x10400812 /*ACIOCR*/
0x00000C40 /*DXCCR*/
0xF200001F /*DSGCR*/
0x0000000B /*DCR*/
0x00010000 /*ODTCR*/
0x0000007B /*ZQ0CR1*/
0x0000CE81 /*DX0GCR*/
0x0000CE81 /*DX1GCR*/
0x0000CE81 /*DX2GCR*/
0x0000CE81 /*DX3GCR*/
>;
st,phy-timing = <
0x0022A41B /*PTR0*/
0x047C0740 /*PTR1*/
0x042D9C80 /*PTR2*/
0x369477D0 /*DTPR0*/
0x098A00D8 /*DTPR1*/
0x10023600 /*DTPR2*/
0x00000830 /*MR0*/
0x00000000 /*MR1*/
0x00000208 /*MR2*/
0x00000000 /*MR3*/
>;
status = "okay";
};
};
};