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path: root/board/sunxi/dram_sun5i_auto.c
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2015-03-10sunxi: Make CONFIG_DRAM_TPR3 apply to sun[57]iAdam Sampson
The tpr3 (timing skew) parameter is used in all supported versions of the sunxi DRAM controller, but it was only enabled for sun4i in 47e3501a76894f4ba08bc61f33774bd5d39ff464. Signed-off-by: Adam Sampson <ats@offog.org> Acked-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-02-02sunxi: dram: Support more sun[457]i dram parameters in KconfigSiarhei Siamashka
This patch allows to configure all the important DRAM parameters in Kconfig. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-02-02sunxi: dram: Optionally use standard JEDEC timings for sun[457]iSiarhei Siamashka
In addition to the current Android magic settings, allow to optionally use DDR3 timing parameters, which are tailored for different clock frequencies and JEDEC speed bins. This should improve reliability and performance. Adding '+S:CONFIG_DRAM_TIMINGS_DDR3_1066F_1333H=y' to the board defconfig allows to use timings, which are calculated for the DDR3-1066F speed bin. A lot of DDR3 chips, which are used in real Allwinner based devices, support DDR3-1066F speed bin timings. And adding '+S:CONFIG_DRAM_TIMINGS_DDR3_800E_1066G_1333J=y' should work with any DDR3 chips, because this targets the slowest JEDEC speed bins. The vendor magic values are still used by default for DRAM, but board maintainers now have more flexibility in DRAM timings selection. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-23sunxi: Drop qt840a_defconfigHans de Goede
The qt840a is one of the many tv-boxes using the "i12" A20 pcb, but it populates only one of the 2 places for a 16 bit dram ic, thus reducing the buswidth to 16 bits, and the amount of ram to 512M, which is why we had a separate config for it. This commit switches the generic i12-tvbox_defconfig over to DRAM autoconfiguration, so that it will work with the qt840a too, and drops the qt840a specific config, like we've done with other memory-amount specific configs before. Tested on a generic i12-tvbox with 32 bit bus-width / 1G RAM, and on a qt840a with 16 bit bus-width / 512M RAM. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Add mk802_a10s board / defconfigHans de Goede
The mk802_a10s re-uses is the "classic" mk802 case and functionality, but has an A10s SoC inside rather then the A10, it features 512M or 1G RAM, 4G nand, a mini-hdmi female connector, USB-A receptacle, mini-usb receptacle (OTG) and a sdio realtek wifi chip. Unlike the original mk802 it does have a pmic, the axp152. For more details see: http://linux-sunxi.org/Semitime_g2 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>