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* ARM: uniphier: refactor UMC init code for ProXstream2Masahiro Yamada2016-02-291-45/+64
| | | | | | | | | | | | | | | | | Currently, a dummy value is defined for the UMC_SPCCTLA register when the DRAM size is zero. This seems weird because the controller does not need setting in the first place if the size is zero. Also, redefine enum dram_size to represent the DRAM size per 16-bit unit. This makes things simpler because the channel 0 and 1 are connected with 32-bit width DRAM, while the channel 2 is connected with 16-bit width one. I am renaming SIZE_* into DRAM_SZ_* (and also FREQ_* to DRAM_FREQ_* for consistency) while I am here because SIZE_* might be easily mixed-up with the macros in include/linux/sizes.h. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* ARM: uniphier: use pr_err() where possibleMasahiro Yamada2016-02-291-4/+4
| | | | Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* ARM: uniphier: optimize ProXstream2 UMC init code with "for" loopMasahiro Yamada2016-02-291-22/+11
| | | | | | | Now this code can be re-written with a "for" statement instead of calling the same function multiple times. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* ARM: uniphier: rework struct uniphier_board_dataMasahiro Yamada2016-02-291-6/+6
| | | | | | | | This commit reworks "struct uniphier_board_data" with an array of DRAM channel data in it. It will allow further cleanups by means of "for" statements that iterate over the DDR channels. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* ARM: uniphier: adjust DDR clock delay line for ProXstream2Masahiro Yamada2016-02-141-2/+10
| | | | | | | | It turned out that DDR channel 2 was not working on ProXstream2 Vodka board. Add the missing ACBLDR0 register setting to adjust the delay between the clock lines and the address/command lines. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* ARM: uniphier: move UMC register macros to umc-regs.hMasahiro Yamada2016-01-201-48/+1
| | | | | | The umc-proxstream2.c defiens the same macros as in umc-regs.h. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* ARM: uniphier: add DRAM init code for ProXstream2/PH1-LD6bMasahiro Yamada2016-01-131-0/+669
As mentioned in the log of commit 019df879a93e2 (ARM: uniphier: add ProXstream2 and PH1-LD6b support), the DRAM init code was missing for a long time. Finally, here it is. SPL works now. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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