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authorLinus Torvalds <torvalds@linux-foundation.org>2016-03-20 14:57:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-20 14:57:08 -0700
commit33b3d2e88c9efd701b6153ca4714d4aa6e9f5af0 (patch)
tree7a3bf34e08e6c7b32e0d5c9333b02a02e3af6330 /arch/arm/mach-uniphier/platsmp.c
parentMerge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc (diff)
parentARM: uniphier: rework SMP code to support new System Bus binding (diff)
downloadlinux-dev-33b3d2e88c9efd701b6153ca4714d4aa6e9f5af0.tar.xz
linux-dev-33b3d2e88c9efd701b6153ca4714d4aa6e9f5af0.zip
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Arnd Bergmann: "Newly added support for additional SoCs: - Axis Artpec-6 SoC family - Allwinner A83T SoC - Mediatek MT7623 - NXP i.MX6QP SoC - ST Microelectronics stm32f469 microcontroller New features: - SMP support for Mediatek mt2701 - Big-endian support for NXP i.MX - DaVinci now uses the new DMA engine dma_slave_map - OMAP now uses the new DMA engine dma_slave_map - earlyprintk support for palmchip uart on mach-tango - delay timer support for orion Other: - Exynos PMU driver moved out to drivers/soc/ - Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP, uniphier" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits) ARM: uniphier: rework SMP code to support new System Bus binding ARM: uniphier: add missing of_node_put() ARM: at91: avoid defining CONFIG_* symbols in source code ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1 ARM: imx: Make reset_control_ops const ARM: imx: Do L2 errata only if the L2 cache isn't enabled ARM: imx: select ARM_CPU_SUSPEND only for imx6 dmaengine: pxa_dma: fix the maximum requestor line ARM: alpine: select the Alpine MSI controller driver ARM: pxa: add the number of DMA requestor lines dmaengine: mmp-pdma: add number of requestors dma: mmp_pdma: Add the #dma-requests DT property documentation ARM: OMAP2+: Add rtc hwmod configuration for ti81xx ARM: s3c24xx: Avoid warning for inb/outb ARM: zynq: Move early printk virtual address to vmalloc area ARM: DRA7: hwmod: Add custom reset handler for PCIeSS ARM: SAMSUNG: Remove unused register offset definition ARM: EXYNOS: Cleanup header files inclusion drivers: soc: samsung: Enable COMPILE_TEST MAINTAINERS: Add maintainers entry for drivers/soc/samsung ...
Diffstat (limited to 'arch/arm/mach-uniphier/platsmp.c')
-rw-r--r--arch/arm/mach-uniphier/platsmp.c26
1 files changed, 17 insertions, 9 deletions
diff --git a/arch/arm/mach-uniphier/platsmp.c b/arch/arm/mach-uniphier/platsmp.c
index e1cfc1d6e2f4..69141357afe8 100644
--- a/arch/arm/mach-uniphier/platsmp.c
+++ b/arch/arm/mach-uniphier/platsmp.c
@@ -30,7 +30,7 @@
* The secondary CPUs check this register from the boot ROM for the jump
* destination. After that, it can be reused as a scratch register.
*/
-#define UNIPHIER_SBC_ROM_BOOT_RSV2 0x1208
+#define UNIPHIER_SMPCTRL_ROM_RSV2 0x208
static void __iomem *uniphier_smp_rom_boot_rsv2;
static unsigned int uniphier_smp_max_cpus;
@@ -98,16 +98,24 @@ static int __init uniphier_smp_prepare_trampoline(unsigned int max_cpus)
phys_addr_t rom_rsv2_phys;
int ret;
- np = of_find_compatible_node(NULL, NULL,
- "socionext,uniphier-system-bus-controller");
- ret = of_address_to_resource(np, 1, &res);
- if (ret) {
- pr_err("failed to get resource of system-bus-controller\n");
- return ret;
+ np = of_find_compatible_node(NULL, NULL, "socionext,uniphier-smpctrl");
+ of_node_put(np);
+ ret = of_address_to_resource(np, 0, &res);
+ if (!ret) {
+ rom_rsv2_phys = res.start + UNIPHIER_SMPCTRL_ROM_RSV2;
+ } else {
+ /* try old binding too */
+ np = of_find_compatible_node(NULL, NULL,
+ "socionext,uniphier-system-bus-controller");
+ of_node_put(np);
+ ret = of_address_to_resource(np, 1, &res);
+ if (ret) {
+ pr_err("failed to get resource of SMP control\n");
+ return ret;
+ }
+ rom_rsv2_phys = res.start + 0x1000 + UNIPHIER_SMPCTRL_ROM_RSV2;
}
- rom_rsv2_phys = res.start + UNIPHIER_SBC_ROM_BOOT_RSV2;
-
ret = uniphier_smp_copy_trampoline(rom_rsv2_phys);
if (ret)
return ret;