From e261c83aa04ce0396d57aaecf8dfe0970ffac03e Mon Sep 17 00:00:00 2001 From: Andre Przywara Date: Thu, 19 Sep 2013 18:06:46 +0200 Subject: [PATCH] ARM: VExpress: enable ARMv7 virt support for VExpress A15 To enable hypervisors utilizing the ARMv7 virtualization extension on the Versatile Express board with the A15 core tile, we add the required configuration variable. Also we define the board specific smp_set_cpu_boot_addr() function to set the start address for secondary cores in the VExpress specific manner. There is no need to provide a custom smp_waitloop() function here. This also serves as an example for what to do when adding support for new boards. Signed-off-by: Andre Przywara --- board/armltd/vexpress/vexpress_common.c | 15 +++++++++++++++ include/configs/vexpress_ca15_tc2.h | 5 +++++ 2 files changed, 20 insertions(+) diff --git a/board/armltd/vexpress/vexpress_common.c b/board/armltd/vexpress/vexpress_common.c index 4c7a7f46d5..56febd9525 100644 --- a/board/armltd/vexpress/vexpress_common.c +++ b/board/armltd/vexpress/vexpress_common.c @@ -256,3 +256,18 @@ ulong get_tbclk(void) { return (ulong)CONFIG_SYS_HZ; } + +#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT) +/* Setting the address at which secondary cores start from. + * Versatile Express uses one address for all cores, so ignore corenr + */ +void smp_set_core_boot_addr(unsigned long addr, int corenr) +{ + /* The SYSFLAGS register on VExpress needs to be cleared first + * by writing to the next address, since any writes to the address + * at offset 0 will only be ORed in + */ + writel(~0, CONFIG_SYSFLAGS_ADDR + 4); + writel(addr, CONFIG_SYSFLAGS_ADDR); +} +#endif diff --git a/include/configs/vexpress_ca15_tc2.h b/include/configs/vexpress_ca15_tc2.h index 89ce1c711c..0806034096 100644 --- a/include/configs/vexpress_ca15_tc2.h +++ b/include/configs/vexpress_ca15_tc2.h @@ -15,4 +15,9 @@ #include "vexpress_common.h" #define CONFIG_BOOTP_VCI_STRING "U-boot.armv7.vexpress_ca15x2_tc2" +#define CONFIG_SYSFLAGS_ADDR 0x1c010030 +#define CONFIG_SMP_PEN_ADDR CONFIG_SYSFLAGS_ADDR + +#define CONFIG_ARMV7_VIRT + #endif -- 2.39.5