u-boot.git/arch/arm/include/asm/arch-uniphier, branch master

ARM: UniPhier: move SoC headers to mach-uniphier/include/mach

2015-02-28T15:02:12Z

Move arch/arm/include/asm/arch-uniphier/* -> arch/arm/mach-uniphier/include/mach/* Signed-off-by: Masahiro Yamada

ARM: UniPhier: refactor pinmon command

2015-02-06T15:15:03Z

The return value of get_boot_mode_sel() is used as the index of the boot_device_table[] array. Its type should be "int" rather than "u32". Use only the iterator "i" for the loop in do_pinmon(). Signed-off-by: Masahiro Yamada

ARM: UniPhier: remove dummy gpio.h

2015-02-06T15:10:34Z

This dummy header was introduced by commit 630bf80ebb34 (ARM: UniPhier: add dummy gpio.h to enable CONFIG_OF_CONTROL). Thanks to commit a08d643dbd85 (dm: Drop gpio.h header from fdtdec.c), such an ugly workaround is no longer needed. Signed-off-by: Masahiro Yamada

ARM: UniPhier: add SG_MEMCONF macros for DDR channel 2

2015-01-22T15:52:16Z

PH1-sLD3, PH1-LD6b have DDR channel 2. Signed-off-by: Masahiro Yamada

ARM: UniPhier: rename SG_MEMCONF_* macros for readability

2015-01-22T15:52:14Z

Match the suffixes of SG_MEMCONF_* macros with SZ_* macros defined by for readability. Signed-off-by: Masahiro Yamada

ARM: UniPhier: use for readability

2015-01-22T15:52:06Z

Signed-off-by: Masahiro Yamada

ARM: UniPhier: remove __packed that causes a problem on GCC 4.9

2015-01-22T15:44:17Z

The DDR PHY training function, ddrphy_prepare_training() would not work if compiled with GCC 4.9. The struct ddrphy (arch/arm/include/asm/arch-uniphier/ddrphy-regs.h) is specified with __packed because it represents a hardware register mapping, but it turned out to cause a problem on GCC 4.9. If -mno-unaligned-access is specified (yes, it is in arch/arm/cpu/armv7/config.mk), GCC 4.9 is aware of the __attribute__((packed)) and generates extra instructions to perform the memory access in a way that does not cause unaligned access. (Actually it is not need here because the register base, the first argument of the ddrphy_prepare_training(), is always given with a 4-byte aligned address.) Anyway, as a result, readl() / writel() is divided into byte-wise accesses. The problem is that this hardware only accepts 4-byte register access. Byte-wise accesses lead to unexpected behavior. There are some options to avoid this problem. [1] Remove -mno-unaligned-access [2] Add __aligned(4) along with __packed to struct ddrphy [3] Remove __packed from struct ddrphy [1] solves the problem for ARMv7, but it does not for pre-ARMv6 and ARMv6-M architectures where -mno-unaligned-access is default. So, [1] does not seem reasonable in terms of code portability. Both [2] and [3] work well, but [2] seems too much. All the members of struct ddrphy have the u32 type. No padding would be inserted even if __packed is dropped. Signed-off-by: Masahiro Yamada Reviewed-by: Tom Rini

ARM: UniPhier: add UART initialization routine for low-level debug

2015-01-08T14:01:56Z

The low-level debugging functions are useful to debug the early boot stage where the full UART driver is not available. UniPhier SoCs need to initialize the UART port 0 to use this feature. The initialization routine is called at the very entry of the lowlevel_init(). Signed-off-by: Masahiro Yamada

ARM: UniPhier: enable output of system bus

2015-01-08T14:01:45Z

For NAND boot on PH1-LD4, PH1-sLD8, and some other SoCs, the output of the system bus is disabled by default. It must be enabled by software to have access to the system bus. Signed-off-by: Masahiro Yamada

ARM: UniPhier: add DDR PHY training code

2014-12-30T08:45:25Z

This training code provides run-time adjustment of DDR PHY parameters for stable DDR operation. Signed-off-by: Masahiro Yamada