129 lines
3.1 KiB
C
129 lines
3.1 KiB
C
/* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
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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 version 2 and
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* only version 2 as published by the Free Software Foundation.
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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/gpio.h>
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#include <linux/kernel.h>
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#include <linux/of.h>
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#include <linux/of_irq.h>
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#include <linux/of_fdt.h>
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#include <linux/mfd/wcd9xxx/core.h>
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#include <asm/arch_timer.h>
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#include <asm/mach/time.h>
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#include <asm/mach/map.h>
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#include <asm/hardware/cache-l2x0.h>
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#include <asm/hardware/gic.h>
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#include <mach/mpm.h>
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#include <mach/qpnp-int.h>
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#include <mach/msm_iomap.h>
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#include <mach/scm.h>
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#include "board-dt.h"
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#define SCM_SVC_L2CC_PL310 16
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#define L2CC_PL310_CTRL_ID 1
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#define L2CC_PL310_ON 1
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static void __init msm_dt_timer_init(void)
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{
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arch_timer_of_register();
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}
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struct sys_timer msm_dt_timer = {
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.init = msm_dt_timer_init
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};
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static struct of_device_id irq_match[] __initdata = {
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{ .compatible = "qcom,msm-qgic2", .data = gic_of_init, },
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{ .compatible = "qcom,msm-gpio", .data = msm_gpio_of_init, },
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{ .compatible = "qcom,spmi-pmic-arb", .data = qpnpint_of_init, },
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{ .compatible = "qcom,wcd9xxx-irq", .data = wcd9xxx_irq_of_init, },
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{}
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};
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static struct of_device_id mpm_match[] __initdata = {
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{.compatible = "qcom,mpm-v2", },
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{}
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};
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void __init msm_dt_init_irq(void)
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{
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struct device_node *node;
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of_irq_init(irq_match);
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node = of_find_matching_node(NULL, mpm_match);
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WARN_ON(!node);
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if (node)
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of_mpm_init(node);
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}
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void __init msm_dt_init_irq_nompm(void)
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{
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of_irq_init(irq_match);
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}
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void __init msm_dt_init_irq_l2x0(void)
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{
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scm_call_atomic1(SCM_SVC_L2CC_PL310, L2CC_PL310_CTRL_ID, L2CC_PL310_ON);
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l2x0_of_init(0, ~0UL);
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msm_dt_init_irq();
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}
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int __init msm_scan_dt_map_imem(unsigned long node, const char *uname,
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int depth, void *data)
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{
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unsigned int *imem_prop;
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unsigned long imem_prop_len;
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struct map_desc map;
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int ret;
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const char *compat = "qcom,msm-imem";
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ret = of_flat_dt_is_compatible(node, compat);
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if (!ret)
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return 0;
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imem_prop = of_get_flat_dt_prop(node, "reg",
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&imem_prop_len);
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if (!imem_prop) {
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WARN(1, "IMEM reg field not found\n");
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return 0;
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}
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if (imem_prop_len != (2*sizeof(u32))) {
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WARN(1, "IMEM range malformed\n");
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return 0;
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}
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map.virtual = (unsigned long)MSM_IMEM_BASE;
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map.pfn = __phys_to_pfn(be32_to_cpu(imem_prop[0]));
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map.length = be32_to_cpu(imem_prop[1]);
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map.type = MT_DEVICE;
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iotable_init(&map, 1);
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pr_info("IMEM DT static mapping successful\n");
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return 1;
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}
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void __init board_dt_populate(struct of_dev_auxdata *adata)
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{
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of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
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/* Explicitly parent the /soc devices to the root node to preserve
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* the kernel ABI (sysfs structure, etc) until userspace is updated
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*/
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of_platform_populate(of_find_node_by_path("/soc"),
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of_default_bus_match_table, adata, NULL);
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}
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