ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR have been enabled as default configs to S5P64X0 platforms. Introduction of PHYS_VIRT config as default would enable phy-to-virt and virt-to-phy translation function at boot and module loading time and enforce dynamic reallocation of memory. AUTO_ZRELADDR config would enable calculation of kernel load address at run time. PHYS_VIRT config is mutually exclusive to XIP_KERNEL, XIP_KERNEL is used in systems with NOR flash devices, and ZRELADDR config is mutually exclusive to ZBOOT_ROM. CFT::Call For Testing Requesting maintainers of S5P64X0 platforms to evaluate the changes on the board and comment, as I dont have the board for testing and also requesting an ACK Signed-off-by: panchaxari <panchaxari.prasannamurthy@xxxxxxxxxx> Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx> Cc: Tomasz Figa <tomasz.figa@xxxxxxxxx> Cc: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> Cc: Heiko Stuebner <heiko@xxxxxxxxx> Cc: Russell King <linux@xxxxxxxxxxxxxxxx> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Cc: linux-samsung-soc@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx --- The samsung S5P64X0 vega has an average performing CPU with max speed 667 Mhz. This SOC has two variants S5P6440 and S5P6450. It has one core based on ARM1176JZF-S instruction set, and has 16KB data and instruction cache each. SOC has a memory subsystem with support to NAND Flash interface with x8 data bus, with 1/4/8/12/16 bit hardware ECC circuit and 4KB Page mode. It has Mobile DDR interface with x16 or x32 data bus, and DDR2 interface with x16 or x32 data bus it also supports eMMC4.4. Below lkml link is a quoting by Russell which clears the concept of PHYS_VIRT and ZRELADDR ------------------------------------------------- https://lkml.org/lkml/2011/10/14/434 ------------------------------------------------- --- arch/arm/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 934e26c..8986335 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -759,6 +759,8 @@ config ARCH_S3C64XX config ARCH_S5P64X0 bool "Samsung S5P6440 S5P6450" + select ARM_PATCH_PHYS_VIRT + select AUTO_ZRELADDR select CLKDEV_LOOKUP select CLKSRC_SAMSUNG_PWM select CPU_V6 -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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