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2015-03-24ARM: UniPhier: remove unnecessary ifdef conditionalMasahiro Yamada
The callee (arch/arm/lib/cache-cp15.c) has a #ifdef CONFIG_SYS_DCACHE_OFF conditional. The same conditional in the caller (arch/arm/mach-uniphier/cache_uniphier.c) is redundant. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-24ARM: UniPhier: disable L2 cache by lowlevel_init of U-Boot properMasahiro Yamada
The L2 cache is used as a temporary SRAM on SPL. Now the secondary CPUs store the necessary code for jumping to Linux on their L1 I-caches. So, the L2 cache can be disabled much earlier, at the very entry of U-Boot proper (lowlevel_init). This makes the boot sequence clearer. Also, as the L1 cache has been disabled by the start.S, enable_caches() does not need to do it again. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-24ARM: UniPhier: optimize kicking secondary CPUs codeMasahiro Yamada
Currently, the secondary CPU(s) are kicked three times: Boot ROM ---(kick)--> SPL ---(kick)--> U-boot ---(kick)--> Linux. It makes the boot sequence very complicated. This commit merges the first and the second kicks, so the secondary CPU(s) can directly jump from SPL to Linux. arch/arm/mach-uniphier/smp.S is no longer necessary. Linux boot test passed. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-24ARM: UniPhier: fix typos in commentsMasahiro Yamada
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-24ARM: UniPhier: add empty lowlevel_init to U-boot properMasahiro Yamada
To remove the ifdef conditional of CONFIG_SKIP_LOWLEVEL_INIT, add late_lowlevel_init.S to U-Boot proper. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-24ARM: UniPhier: use CONFIG_SPL_STACK to define SPL stack pointerMasahiro Yamada
Ifdef conditionals for CONFIG options are not Kconfig-friendly. Instead, define CONFIG_SPL_STACK to prepare for Kconfig moves. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-24ARM: UniPhier: enable Driver Model and UART on SPLMasahiro Yamada
Enable CONFIG_SPL_DM and CONFIG_SPL_SERIAL_SUPPORT, which provide Driver Model UART support on SPL. CONFIG_SYS_SPL_MALLOC_{START,SIZE} should be dropped because simple malloc is preferred on SPL. Dlmalloc requires some static variables on .data section that is not available yet for NOR boot mode etc. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-24ARM: UniPhier: move UART pin settings to SPLMasahiro Yamada
The UniPhier platform is going to enable Driver Model and UART support on SPL. Move UART pin settings to early_pin_init(), which is called from SPL. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-24ARM: UniPhier: move platform devices to SPLMasahiro Yamada
Since we do not have OF_CONTROL support for SPL, platform devices are necessary to enable Driver Model on SPL. To prepare for that, move platdevice.o to SPL and enable it by CONFIG_SPL_DM. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-24ARM: UniPhier: include PH1-LD4 Makefile from PH1-sLD8Masahiro Yamada
The two Makefiles arch/arm/mach-uniphier/{ph1-ld4,ph1-sld8}/Makefile are completely the same. We can improve the maintainability by having one to include the other. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-24ARM: UniPhier: remove unnecessary CONFIG_SYS_SOCMasahiro Yamada
Since commit a86ac9540e20 (ARM: UniPhier: include <mach/*.h> instead of <asm/arch/*.h>), UniPhier platform does not need the symbolic link arch/arm/include/asm. This option is not necessary either. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-01ARM: UniPhier: remove SSC_WAY_SIZE and SSC_NUM_ENTRIES macrosMasahiro Yamada
Each way of the system cache has 256 entries for PH1-Pro4 and older SoCs, whereas 512 entries for PH1-Pro5 and newer SoCs. The line size is still 128 byte. Thus, the way size is 32KB/64KB for old/new SoCs. To keep lowlevel_init SoC-independent, set BOOT_RAM_SIZE to the constant value 32KB. It is large enough for temporary RAM and should work for all the SoCs of UniPhier family. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: remove stop_mpll() from PH1-Pro4 PLL initializationMasahiro Yamada
This function was intended for MN2WS0235 (what we call PH1-Pro4TV). On that SoC, MPLL is already running on the power-on reset and it makes sense to stop the PLL at early boot-up. On the other hand, PH1-Pro4(R) does not have SC_MPLLOSCCTL register, so this function has no point. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: consolidate MEMCONF setting codeMasahiro Yamada
This code is duplicated in ph1-ld4/sg_init.c and ph1-pro4/sg_init.c. Merge the same code into a new file, memconf.c. The helper functions no longer have to be placed in the header file. Also, move them into memconf.c. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: support 1CS support card for all the UniPhier SoCsMasahiro Yamada
Two support card variants are used with UniPhier reference boards: - 1 chip select support card (original CPLD) - 3 chip selects support card (ARIMA-compatible CPLD) Currently, the former is only supported on PH1-Pro4, but it can be expanded to PH1-LD4, PH1-sLD8 with a little code change. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: enable xHCI and GIO cores for PH1-Pro4Masahiro Yamada
This is necessary to use the USB 3.0 host controllers on PH1-Pro4. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: add I/O pin settings for xHCI on PH1-Pro4Masahiro Yamada
This is necessary to use the xHCI cores for PH1-Pro4. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: move uniphier_ehci_reset() functionMasahiro Yamada
Because uniphier_ehci_reset() is only called from ehci-uniphier.c, it can be a static function there. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Marek Vasut <marex@denx.de>
2015-03-01ARM: UniPhier: remove EHCI platform devicesMasahiro Yamada
Now UniPhier platform highly depends on Device Tree configuration (CONFIG_OF_CONTROL is select'ed by Kconfig). Since the EHCI is only used on main U-Boot, we can drop platform devices of the EHCI controllers. We still keep UART platform devices because they might be useful for SPL. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Marek Vasut <marex@denx.de>
2015-03-01ARM: UniPhier: enable STDMAC for EHCIMasahiro Yamada
Deassert the reset signal and provide the clock for STDMAC core. This is necessary for the USB 2.0 host controllers. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: reset NAND core in SPL for non-NAND boot modeMasahiro Yamada
For all the UniPhier SoCs so far, the reset signal of the NAND core is automatically deasserted after the PLL gets stabled. (The bit 2 of SC_RSTCTRL is default to one.) This causes a fatal problem on the NAND controller of PH1-LD4. For that SoC, the NAND I/O pins are not set up yet at the power-on reset except the NAND boot mode. As a result, the NAND controller begins automatic device scanning with wrong I/O pins and finally hangs up. Actually, U-Boot dies after printing "NAND:" on the console unless the boot mode latch detected the NAND boot mode. To work around this problem, reset the NAND core in SPL for non-NAND boot modes. If CONFIG_NAND_DENALI is enabled, the reset signal is deasserted again in U-Boot proper. At this time, I/O pins have been correctly set up, the device scanning should succeed. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: split clkrst_init() into two functionsMasahiro Yamada
Split the current clkrst_init() into two functions: - early_clkrst_init(): called from SPL Deassert the reset signals of the memory controller and some other basic cores. - clkrst_init(): called from main U-boot Deassert the reset signals that are necessary for the access to peripherals etc. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: rename SC_CLKCTRL_CLK_* to SC_SCLKCTRL_CEN_*Masahiro Yamada
Follow the register macros in the LSI specification book. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: fix SBC init codeMasahiro Yamada
Now UniPhier SoCs only work with CONFIG_SPL and the function sbc_init() is called from SPL. The conditional #if !defined(CONFIG_SPL_BUILD) has no point any more. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: fix comments in PH1-Pro4 SBC codeMasahiro Yamada
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: include <mach/*.h> instead of <asm/arch/*.h>Masahiro Yamada
Since commit 0e7368c6c426 (kbuild: prepare for moving headers into mach-*/include/mach), we can replace #include <asm/arch/*.h> with <mach/*.h> so we do not need to create the symbolic link during the build. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: move SoC headers to mach-uniphier/include/machMasahiro Yamada
Move arch/arm/include/asm/arch-uniphier/* -> arch/arm/mach-uniphier/include/mach/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01ARM: UniPhier: move SoC sources to mach-uniphierMasahiro Yamada
Move arch/arm/cpu/armv7/uniphier/* -> arch/arm/mach-uniphier/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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