185 lines
4.5 KiB
C
185 lines
4.5 KiB
C
/*
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* Copyright 2012 (C), Jason Cooper <jason@lakedaemon.net>
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*
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* arch/arm/mach-kirkwood/board-dt.c
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*
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* Flattened Device Tree board initialization
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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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/of.h>
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#include <linux/of_platform.h>
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#include <linux/clk-provider.h>
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#include <linux/clk/mvebu.h>
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#include <linux/kexec.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <mach/bridge-regs.h>
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#include <linux/platform_data/usb-ehci-orion.h>
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#include <plat/irq.h>
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#include <plat/common.h>
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#include "common.h"
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static struct of_device_id kirkwood_dt_match_table[] __initdata = {
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{ .compatible = "simple-bus", },
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{ }
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};
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/*
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* There are still devices that doesn't know about DT yet. Get clock
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* gates here and add a clock lookup alias, so that old platform
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* devices still work.
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*/
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static void __init kirkwood_legacy_clk_init(void)
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{
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struct device_node *np = of_find_compatible_node(
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NULL, NULL, "marvell,kirkwood-gating-clock");
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struct of_phandle_args clkspec;
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clkspec.np = np;
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clkspec.args_count = 1;
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clkspec.args[0] = CGC_BIT_GE0;
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orion_clkdev_add(NULL, "mv643xx_eth_port.0",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CGC_BIT_PEX0;
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orion_clkdev_add("0", "pcie",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CGC_BIT_PEX1;
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orion_clkdev_add("1", "pcie",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CGC_BIT_GE1;
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orion_clkdev_add(NULL, "mv643xx_eth_port.1",
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of_clk_get_from_provider(&clkspec));
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}
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static void __init kirkwood_of_clk_init(void)
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{
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mvebu_clocks_init();
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kirkwood_legacy_clk_init();
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}
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static void __init kirkwood_dt_init(void)
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{
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pr_info("Kirkwood: %s, TCLK=%d.\n", kirkwood_id(), kirkwood_tclk);
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/*
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* Disable propagation of mbus errors to the CPU local bus,
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* as this causes mbus errors (which can occur for example
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* for PCI aborts) to throw CPU aborts, which we're not set
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* up to deal with.
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*/
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writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
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kirkwood_setup_cpu_mbus();
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kirkwood_l2_init();
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/* Setup root of clk tree */
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kirkwood_of_clk_init();
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kirkwood_cpuidle_init();
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#ifdef CONFIG_KEXEC
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kexec_reinit = kirkwood_enable_pcie;
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#endif
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if (of_machine_is_compatible("globalscale,dreamplug"))
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dreamplug_init();
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if (of_machine_is_compatible("globalscale,guruplug"))
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guruplug_dt_init();
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if (of_machine_is_compatible("dlink,dns-kirkwood"))
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dnskw_init();
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if (of_machine_is_compatible("iom,iconnect"))
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iconnect_init();
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if (of_machine_is_compatible("raidsonic,ib-nas62x0"))
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ib62x0_init();
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if (of_machine_is_compatible("qnap,ts219"))
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qnap_dt_ts219_init();
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if (of_machine_is_compatible("seagate,dockstar"))
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dockstar_dt_init();
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if (of_machine_is_compatible("seagate,goflexnet"))
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goflexnet_init();
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if (of_machine_is_compatible("buffalo,lsxl"))
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lsxl_init();
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if (of_machine_is_compatible("iom,ix2-200"))
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iomega_ix2_200_init();
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if (of_machine_is_compatible("keymile,km_kirkwood"))
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km_kirkwood_init();
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if (of_machine_is_compatible("lacie,inetspace_v2") ||
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of_machine_is_compatible("lacie,netspace_v2") ||
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of_machine_is_compatible("lacie,netspace_max_v2") ||
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of_machine_is_compatible("lacie,netspace_lite_v2") ||
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of_machine_is_compatible("lacie,netspace_mini_v2"))
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ns2_init();
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if (of_machine_is_compatible("mpl,cec4"))
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mplcec4_init();
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if (of_machine_is_compatible("plathome,openblocks-a6"))
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openblocks_a6_init();
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if (of_machine_is_compatible("usi,topkick"))
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usi_topkick_init();
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of_platform_populate(NULL, kirkwood_dt_match_table, NULL, NULL);
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}
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static const char * const kirkwood_dt_board_compat[] = {
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"globalscale,dreamplug",
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"globalscale,guruplug",
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"dlink,dns-320",
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"dlink,dns-325",
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"iom,iconnect",
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"raidsonic,ib-nas62x0",
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"qnap,ts219",
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"seagate,dockstar",
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"seagate,goflexnet",
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"buffalo,lsxl",
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"iom,ix2-200",
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"keymile,km_kirkwood",
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"lacie,inetspace_v2",
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"lacie,netspace_max_v2",
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"lacie,netspace_v2",
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"lacie,netspace_lite_v2",
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"lacie,netspace_mini_v2",
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"mpl,cec4",
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"plathome,openblocks-a6",
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"usi,topkick",
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"zyxel,nsa310",
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NULL
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};
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DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)")
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/* Maintainer: Jason Cooper <jason@lakedaemon.net> */
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.map_io = kirkwood_map_io,
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.init_early = kirkwood_init_early,
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.init_irq = orion_dt_init_irq,
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.init_time = kirkwood_timer_init,
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.init_machine = kirkwood_dt_init,
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.restart = kirkwood_restart,
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.dt_compat = kirkwood_dt_board_compat,
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MACHINE_END
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