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* imx: mx6q_4x_mt41j128.cfg: Setup CCM_CCOSR registerFabio Estevam2013-04-25-0/+11
| | | | | | | | | | | | | Setup CCM_CCOSR register to provide a CKO1 clock frequency of 16.5 MHz. CKO1 drives sgtl5000 codec clock on mx6qsabrelite and doing this setup in the bootloader will allow us to remove a lot of code in arch/arm/mach-imx/mach-imx6q.c from the mainline kernel. mx6q_4x_mt41j128.cfg is also used by mx6qsabresd, and it is safe to use it for this board as well. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* imx: mx6q DDR3 init: Benefit from available CL = 7Benoît Thébaudeau2013-02-12-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All the users of mx6q_4x_mt41j128.cfg (DDR3-1333H Micron MT41J128M16HA-15E or SK hynix H5TQ2G63BFR-H9C for i.MX6Q SABRE Lite, and DDR3-1600K Micron MT41K128M16JT-125:K for i.MX6 SABRE SD) support the optional down binning to DDR3-1066F (CL = 7, CWL = 6), which is possible at 532 MHz, so use it. In these conditions: tRCD(min) = 13.125 ns tRP(min) = 13.125 ns tRC(min) = max(tRAS(min, DDR3-1333H), tRAS(min, DDR3-1600K)) + tRP(min) tRAS(min, DDR3-1333H) = 36 ns tRAS(min, DDR3-1600K) = 35 ns MMDC1_MDCFG0.tCL should be set to 7 nCK, encoded as 0x4 in the bit-field MMDC1_MDCFG0[3:0]. MR0.CL should be set as in MMDC1_MDCFG0.tCL, i.e. to 7 nCK, which is encoded as 0x6 in MRS.LMR.MR0.{A6:A4, A2} and MMDC1_MDSCR[22:20, 18]. MMDC1_MDCFG1.tCWL should be set to 6 nCK, encoded as 0x4 in the bit-field MMDC1_MDCFG1[2:0]. MMDC1_MDCFG1.tRCD should be set to 13.125 ns, which is 7 nCK at 532 MHz, encoded as 0x6 in the bit-field MMDC1_MDCFG1[31:29]. MMDC1_MDCFG1.tRP should be set to 13.125 ns, which is 7 nCK at 532 MHz, encoded as 0x6 in the bit-field MMDC1_MDCFG1[28:26]. MMDC1_MDCFG1.tRC should be set to 49.125 ns, which is 27 nCK at 532 MHz, encoded as 0x1A in the bit-field MMDC1_MDCFG1[25:21]. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* imx: mx6q DDR3 init: Fix MR0.PPDBenoît Thébaudeau2013-02-12-2/+2
| | | | | | | MR0.PPD should be set as in MMDCx_MDPDC.SLOW_PD, i.e. to fast-exit mode, which is encoded as 1 in MRS.LMR.MR0.A12 and MMDCx_MDSCR[28]. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* imx: mx6q DDR3 init: Fix RST_to_CKEBenoît Thébaudeau2013-02-12-1/+1
| | | | | | | | MMDC1_MDOR.RST_to_CKE should be set to 500 µs according to the JEDEC specification for DDR3. With a cycle of 15.258 µs, this gives 33 cycles encoded as 0x23 for the bit-field MMDC1_MDOR[5:0]. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* imx: mx6q DDR3 init: Fix SDE_to_RSTBenoît Thébaudeau2013-02-12-1/+1
| | | | | | | | MMDC1_MDOR.SDE_to_RST should be set to 200 µs according to the JEDEC specification for DDR3. With a cycle of 15.258 µs, this gives 14 cycles encoded as 0x10 for the bit-field MMDC1_MDOR[13:8]. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* imx: mx6q DDR3 init: Fix tXPRBenoît Thébaudeau2013-02-12-1/+1
| | | | | | | | | | | | | | | | | MMDC1_MDOR.tXPR should be set as specified for the JEDEC DDR3 timing tXPR. For all DDR3 speed bins: tXPR(min) = max(5 nCK, tRFC(min) + 10 ns) tRFC(2 Gb) = 160 ns All the users of mx6q_4x_mt41j128.cfg have a 2-Gb density (Micron MT41J128M16HA-15E or SK hynix H5TQ2G63BFR-H9C for i.MX6Q SABRE Lite, and Micron MT41K128M16JT-125:K for i.MX6 SABRE SD). Hence, MMDC1_MDOR.tXPR should be set to max(5 nCK, 170 ns), which is 170 ns and 91 nCK at 532 MHz, encoded as 0x5A in the bit-field MMDC1_MDOR[23:16]. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* imx: mx6q DDR3 init: Fix tMRDBenoît Thébaudeau2013-02-12-1/+1
| | | | | | | | | | | | | | MMDC1_MDCFG1.tMRD should be set to max(tMRD, tMOD) for DDR3. For all DDR3 speed bins: tMRD(min) = 4 nCK tMOD(min) = max(12 nCK, 15 ns) Hence, MMDC1_MDCFG1.tMRD should be set to max(12 nCK, 15 ns), which is 12 nCK at 532 MHz, encoded as 0xB in the bit-field MMDC1_MDCFG1[8:5]. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Tested-by: Eric Nelson <eric.nelson@boundarydevices.com>
* imximage.cfg: run files through C preprocessorTroy Kisky2013-01-22-43/+47
| | | | | | | | | | | | The '#' used as comments in the files cause the preprocessor trouble, so change to /* */. The mkimage command which uses this preprocessor output was moved to arch/arm/imx-common/Makefile .gitignore was updated to ignore .cfgtmp files. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
* mx6q: Factor out common DDR3 init codeFabio Estevam2012-10-15-0/+170
Factor out common DDR3 initialization code, allowing easier maintainance of such scripts. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
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