33b3d2e88c
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
...
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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* SMP support for Emma Mobile EV2
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*
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* Copyright (C) 2012 Renesas Solutions Corp.
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* Copyright (C) 2012 Magnus Damm
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/smp.h>
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#include <linux/spinlock.h>
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#include <linux/io.h>
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#include <linux/delay.h>
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#include <asm/smp_plat.h>
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#include <asm/smp_scu.h>
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#include "common.h"
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#include "emev2.h"
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#define EMEV2_SCU_BASE 0x1e000000
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#define EMEV2_SMU_BASE 0xe0110000
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#define SMU_GENERAL_REG0 0x7c0
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static int emev2_boot_secondary(unsigned int cpu, struct task_struct *idle)
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{
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arch_send_wakeup_ipi_mask(cpumask_of(cpu_logical_map(cpu)));
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return 0;
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}
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static void __init emev2_smp_prepare_cpus(unsigned int max_cpus)
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{
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void __iomem *smu;
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/* Tell ROM loader about our vector (in headsmp.S) */
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smu = ioremap(EMEV2_SMU_BASE, PAGE_SIZE);
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if (smu) {
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iowrite32(__pa(shmobile_boot_vector), smu + SMU_GENERAL_REG0);
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iounmap(smu);
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}
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/* setup EMEV2 specific SCU bits */
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shmobile_smp_scu_prepare_cpus(EMEV2_SCU_BASE, max_cpus);
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}
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const struct smp_operations emev2_smp_ops __initconst = {
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.smp_prepare_cpus = emev2_smp_prepare_cpus,
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.smp_boot_secondary = emev2_boot_secondary,
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};
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