diff options
Diffstat (limited to 'arch/arm/mach-imx/mach-vf610.c')
| -rw-r--r-- | arch/arm/mach-imx/mach-vf610.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-vf610.c b/arch/arm/mach-imx/mach-vf610.c new file mode 100644 index 0000000000..208ff64069 --- /dev/null +++ b/arch/arm/mach-imx/mach-vf610.c @@ -0,0 +1,71 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright 2012-2013 Freescale Semiconductor, Inc. + */ + +#include <linux/of_address.h> +#include <linux/of_platform.h> +#include <linux/io.h> + +#include <linux/irqchip.h> +#include <asm/mach/arch.h> +#include <asm/hardware/cache-l2x0.h> + +#include "common.h" +#include "hardware.h" + +#define MSCM_CPxCOUNT 0x00c +#define MSCM_CPxCFG1 0x014 + +static void __init vf610_detect_cpu(void) +{ + struct device_node *np; + u32 cpxcount, cpxcfg1; + unsigned int cpu_type; + void __iomem *mscm; + + np = of_find_compatible_node(NULL, NULL, "fsl,vf610-mscm-cpucfg"); + if (WARN_ON(!np)) + return; + + mscm = of_iomap(np, 0); + of_node_put(np); + + if (WARN_ON(!mscm)) + return; + + cpxcount = readl_relaxed(mscm + MSCM_CPxCOUNT); + cpxcfg1 = readl_relaxed(mscm + MSCM_CPxCFG1); + + iounmap(mscm); + + cpu_type = cpxcount ? MXC_CPU_VF600 : MXC_CPU_VF500; + + if (cpxcfg1) + cpu_type |= MXC_CPU_VFx10; + + mxc_set_cpu_type(cpu_type); +} + +static void __init vf610_init_machine(void) +{ + vf610_detect_cpu(); + + of_platform_default_populate(NULL, NULL, NULL); +} + +static const char * const vf610_dt_compat[] __initconst = { + "fsl,vf500", + "fsl,vf510", + "fsl,vf600", + "fsl,vf610", + "fsl,vf610m4", + NULL, +}; + +DT_MACHINE_START(VYBRID_VF610, "Freescale Vybrid VF5xx/VF6xx (Device Tree)") + .l2c_aux_val = 0, + .l2c_aux_mask = ~0, + .init_machine = vf610_init_machine, + .dt_compat = vf610_dt_compat, +MACHINE_END |