From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chen Baozi Subject: [PATCH v2 2/3] xen/arm: Support kick_cpus for OMAP5 Date: Thu, 15 Aug 2013 21:19:49 +0800 Message-ID: <1376572790-27724-3-git-send-email-baozich@gmail.com> References: <1376572790-27724-1-git-send-email-baozich@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1376572790-27724-1-git-send-email-baozich@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Ian Campbell , Julien Grall , Tim Deegan Cc: Chen Baozi , Xen Developer List List-Id: xen-devel@lists.xenproject.org Signed-off-by: Chen Baozi --- xen/arch/arm/arm32/mode_switch.S | 22 +++++++++++++++++++++- xen/include/asm-arm/platforms/omap5.h | 14 ++++++++++++++ 2 files changed, 35 insertions(+), 1 deletion(-) diff --git a/xen/arch/arm/arm32/mode_switch.S b/xen/arch/arm/arm32/mode_switch.S index 3500eb0..ba2a462 100644 --- a/xen/arch/arm/arm32/mode_switch.S +++ b/xen/arch/arm/arm32/mode_switch.S @@ -21,11 +21,13 @@ #include #include #include +#include #include #include /* Wake up secondary cpus - * This code relies on Machine ID and only works for Vexpress and the Arndale + * This code relies on Machine ID and only works for Vexpress, the Arndale + * and the OMAP5 uEVM. * TODO: Move this code either later (via platform specific desc) or in a bootwrapper * r5: Machine ID * Clobber r0 r2 */ @@ -34,6 +36,10 @@ kick_cpus: ldr r0, =MACH_TYPE_SMDK5250 teq r5, r0 /* Are we running on the arndale? */ beq kick_cpus_arndale + /* for OMAP5432 */ + ldr r0, =MACH_TYPE_OMAP5_SEVM + teq r5, r0 + beq kick_cpus_omap5 /* otherwise versatile express */ /* write start paddr to v2m sysreg FLAGSSET register */ ldr r0, =(V2M_SYS_MMIO_BASE) /* base V2M sysreg MMIO address */ @@ -55,6 +61,20 @@ kick_cpus_arndale: str r2, [r0] dsb ldr r2, =EXYNOS5_GIC_BASE_ADDRESS /* r2 := Exynos5 gic base address */ + b kick_cpus_sgi +kick_cpus_omap5: + /* write start paddr to AuxCoreBoot1 where ROM code will jump */ + ldr r0, =(OMAP_AUX_CORE_BOOT_1) + ldr r2, =start + add r2, r2, r10 + str r2, [r0] + ldr r0, =(OMAP_AUX_CORE_BOOT_0) + mov r2, #0x20 + str r2, [r0] + dsb + sev + ldr r2, =OMAP5_GIC_BASE_ADDRESS /* r2 := OMAP5 gic base address */ + b kick_cpus_sgi kick_cpus_sgi: /* send an interrupt */ ldr r0, =GIC_DR_OFFSET /* GIC distributor offset */ diff --git a/xen/include/asm-arm/platforms/omap5.h b/xen/include/asm-arm/platforms/omap5.h index dd8c6ca..6657af6 100644 --- a/xen/include/asm-arm/platforms/omap5.h +++ b/xen/include/asm-arm/platforms/omap5.h @@ -17,6 +17,20 @@ #define OMAP5_WKUPGEN_BASE 0x48281000 #define OMAP5_SRAM_PA 0x40300000 +#define OMAP_AUX_CORE_BOOT_0 0x48281800 +#define OMAP_AUX_CORE_BOOT_1 0x48281804 + +/* Constants below is only used in assembly because the DTS is not yet parsed */ +#ifdef __ASSEMBLY__ + +/* GIC Base Address */ +#define OMAP5_GIC_BASE_ADDRESS 0x48210000 + +/* OMAP5432 uEVM machine ID */ +#define MACH_TYPE_OMAP5_SEVM 3777 + +#endif /* __ASSEMBLY__ */ + #endif /* __ASM_ARM_PLATFORMS_OMAP5_H */ /* -- 1.8.1.4