[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [ARM:PATCH v1 1/1] Add Odroid-XU (Exynos5410) support
XEN/ARM: Add Odroid-XU support The Odroid-XU from hardkernel is an Exynos5410 based board. This patch adds support for the above said board. Signed-off-by: Suriyan Ramasami <suriyan.r@xxxxxxxxx> --- xen/arch/arm/platforms/exynos5.c | 52 +++++++++++++++++++++++++++++++++ xen/include/asm-arm/platforms/exynos5.h | 7 +++++ 2 files changed, 59 insertions(+) diff --git a/xen/arch/arm/platforms/exynos5.c b/xen/arch/arm/platforms/exynos5.c index 65e584f..a210404 100644 --- a/xen/arch/arm/platforms/exynos5.c +++ b/xen/arch/arm/platforms/exynos5.c @@ -26,6 +26,7 @@ #include <asm/platforms/exynos5.h> #include <asm/platform.h> #include <asm/io.h> +#include <asm/delay.h> static int exynos5_init_time(void) { @@ -85,6 +86,46 @@ static int __init exynos5_smp_init(void) return 0; } +static int __init exynos5410_smp_init(void) +{ + void __iomem *sysram; + void __iomem *power; + char *c; + int i; + + /* Power the secondary cores. */ + for (i = 1; i < EXYNOS5410_NUM_CPUS; i++) { + power = ioremap_nocache(EXYNOS5410_POWER_CPU_BASE + + i * EXYNOS5410_POWER_CPU_OFFSET, PAGE_SIZE); + c = (char *) power; + dprintk(XENLOG_INFO, "Power: %x status: %x\n", c[0], c[4]); + c[0] = EXYNOS5410_POWER_ENABLE; + dprintk(XENLOG_INFO, "Waiting for power status to change to %d\n", + EXYNOS5410_POWER_ENABLE); + while (c[4] != EXYNOS5410_POWER_ENABLE) { + udelay(1); + } + dprintk(XENLOG_INFO, "Power status changed to %d!\n", + EXYNOS5410_POWER_ENABLE); + iounmap(power); + + sysram = ioremap_nocache(EXYNOS5410_PA_SYSRAM, PAGE_SIZE); + if ( !sysram ) + { + dprintk(XENLOG_ERR, "Unable to map exynos5 MMIO\n"); + return -EFAULT; + } + + printk("Set SYSRAM to %"PRIpaddr" (%p)\n", + __pa(init_secondary), init_secondary); + writel(__pa(init_secondary), sysram); + + iounmap(sysram); + + } + return 0; +} + static void exynos5_reset(void) { void __iomem *pmu; @@ -105,6 +146,7 @@ static void exynos5_reset(void) static const char * const exynos5_dt_compat[] __initconst = { "samsung,exynos5250", + "samsung,exynos5410", NULL }; @@ -128,6 +170,16 @@ PLATFORM_START(exynos5, "SAMSUNG EXYNOS5") .blacklist_dev = exynos5_blacklist_dev, PLATFORM_END +PLATFORM_START(exynos5410, "SAMSUNG EXYNOS5410") + .compatible = exynos5_dt_compat, + .init_time = exynos5_init_time, + .specific_mapping = exynos5_specific_mapping, + .smp_init = exynos5410_smp_init, + .cpu_up = cpu_up_send_sgi, + .reset = exynos5_reset, + .blacklist_dev = exynos5_blacklist_dev, +PLATFORM_END + /* * Local variables: * mode: C diff --git a/xen/include/asm-arm/platforms/exynos5.h b/xen/include/asm-arm/platforms/exynos5.h index ea941e7..8bc4884 100644 --- a/xen/include/asm-arm/platforms/exynos5.h +++ b/xen/include/asm-arm/platforms/exynos5.h @@ -14,6 +14,13 @@ #define S5P_PA_SYSRAM 0x02020000 +/* Exynos5410 specific */ +#define EXYNOS5410_PA_SYSRAM 0x0207301c +#define EXYNOS5410_NUM_CPUS 0x04 +#define EXYNOS5410_POWER_CPU_BASE (0x10040000 + 0x2000) +#define EXYNOS5410_POWER_CPU_OFFSET (0x80) +#define EXYNOS5410_POWER_ENABLE (0x03) + #endif /* __ASM_ARM_PLATFORMS_EXYNOS5_H */ /* * Local variables: -- 1.9.1 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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