diff options
Diffstat (limited to 'arch/arm/mach-hs/hs-dt.c')
| -rw-r--r-- | arch/arm/mach-hs/hs-dt.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/arch/arm/mach-hs/hs-dt.c b/arch/arm/mach-hs/hs-dt.c new file mode 100644 index 000000000000..774ace66cc22 --- /dev/null +++ b/arch/arm/mach-hs/hs-dt.c @@ -0,0 +1,82 @@ +/* + * (Hisilicon's Hi36xx/Hi37xx SoC based) flattened device tree enabled machine + * + * Copyright (c) 2012-2013 Linaro Ltd. + * + * Haojian Zhuang <haojian.zhuang@linaro.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/clk-provider.h> +#include <linux/irqchip.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> + +#include <asm/hardware/arm_timer.h> +#include <asm/hardware/cache-l2x0.h> +#include <asm/hardware/timer-sp.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/time.h> + +#include <linux/clocksource.h> +#include "core.h" + +static struct of_device_id hs_l2cache_match[] __initdata = { + { .compatible = "arm,pl310-cache", }, + {} +}; + +static void __init hi3xxx_timer_init(void) +{ + struct device_node *node = NULL; + int ret; + u32 data[2]; + + hs_map_io(); + hs_hotplug_init(); + of_clk_init(NULL); + clocksource_of_init(); + + node = of_find_matching_node(NULL, hs_l2cache_match); + WARN_ON(!node); + if (!node) { + pr_err("Failed to find l2cache\n"); + return; + } + ret = of_property_read_u32_array(node, "hisilicon,l2cache-aux", + &data[0], 2); + if (ret < 0) { + data[0] = 0; + data[1] = ~0UL; + } + l2x0_of_init(data[0], data[1]); +} + +static void __init hs_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static const char *hs_compat[] __initdata = { + "hisilicon,hi3620-hi4511", + "hisilicon,hi3716", + NULL, +}; + +DT_MACHINE_START(HS_DT, "Hisilicon Hi36xx/Hi37xx (Flattened Device Tree)") + /* Maintainer: Haojian Zhuang <haojian.zhuang@linaro.org> */ + .map_io = debug_ll_io_init, + .init_irq = irqchip_init, + .init_time = hi3xxx_timer_init, + .init_machine = hs_init, + .dt_compat = hs_compat, + .smp = smp_ops(hs_smp_ops), + .restart = hs_restart, +MACHINE_END |