On 15/01/15 22:33, Akshay Saraswat wrote: > This patch adds "iRAM, CPU state and low power" configs > which are the addresses acting as flag registers. > > iROM code checks CONFIG_LOWPOWER_FLAG address. If it is equal > to CONFIG_LOWPOWER_EN then it jumps to the address (0x02020000+CPUID*4). > This is a part of iROM logic. Rest other flags are being used at > various places during kernel switching and reset. > They are nowhere documented because they are part programming. > These configs are serving as flags for us because they are > representing the addresses in iRAM which we are using for > storing and extracting CPU Status and GIC status. > > Signed-off-by: Akshay Saraswat <aksha...@samsung.com> > --- > include/configs/exynos5-common.h | 28 ++++++++++++++++++++++++++++ > 1 file changed, 28 insertions(+) > > diff --git a/include/configs/exynos5-common.h > b/include/configs/exynos5-common.h > index ad63f3c..831bfd3 100644 > --- a/include/configs/exynos5-common.h > +++ b/include/configs/exynos5-common.h > @@ -231,4 +231,32 @@ > MEM_LAYOUT_ENV_SETTINGS \ > BOOTENV > > +/* iRAM */ > +#define CONFIG_PHY_IRAM_BASE 0x02020000 > +#define CONFIG_SEC_IRAM_SIZE 0x53000 /* 332KB */ > + > +#define CONFIG_EXYNOS_RELOCATE_CODE_BASE (CONFIG_PHY_IRAM_BASE \ > + + CONFIG_SEC_IRAM_SIZE) > + > +/* > + * Low Power settings > + */ > +#define CONFIG_LOWPOWER_FLAG 0x02020028 > +#define CONFIG_LOWPOWER_ADDR 0x0202002C > +#define CONFIG_LOWPOWER_EN 0xc9cfcfcf > + > +/* > + * CPU State Settings > + */ > +#define CONFIG_CPU_STATE (CONFIG_EXYNOS_RELOCATE_CODE_BASE + > 0x28) > +#define CONFIG_GIC_STATE (CONFIG_EXYNOS_RELOCATE_CODE_BASE + > 0x38) > + > +#define CONFIG_CPU0_STATE (CONFIG_CPU_STATE + 0x0) > +#define CONFIG_CPU1_STATE (CONFIG_CPU_STATE + 0x4) > +#define CONFIG_CPU2_STATE (CONFIG_CPU_STATE + 0x8) > +#define CONFIG_CPU3_STATE (CONFIG_CPU_STATE + 0xC) > + > +#define RESET (1 << 0) > +#define SECONDARY_RESET (1 << 1) > +
These two defines looks very common. Please modify the name. Thanks, Minkyu Kang. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
