1611f87251
With true DT clock providers available switch Kirkwood clock setup in DT- enabled boards. While AUXDATA can be removed completely from bus probing, some devices still don't know about DT. Therefore, some clkdev aliases are created until these devices also move to DT. Signed-off-by: Andrew Lunn <andrew@lunn.ch>
171 lines
4.1 KiB
C
171 lines
4.1 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_USB0;
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orion_clkdev_add(NULL, "orion-ehci.0",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CGC_BIT_XOR0;
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orion_clkdev_add(NULL, "mv_xor_shared.0",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CGC_BIT_XOR1;
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orion_clkdev_add(NULL, "mv_xor_shared.1",
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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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/* internal devices that every board has */
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kirkwood_xor0_init();
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kirkwood_xor1_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("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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of_platform_populate(NULL, kirkwood_dt_match_table, NULL, NULL);
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}
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static const char *kirkwood_dt_board_compat[] = {
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"globalscale,dreamplug",
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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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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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.timer = &kirkwood_timer,
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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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