arch/arm/mach-msm/devices-9615.c

/* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <asm/hardware/gic.h>
#include <mach/board.h>
#include <mach/msm_iomap.h>
#include <mach/irqs.h>
#include <mach/socinfo.h>
#include <asm/hardware/cache-l2x0.h>
#include "devices.h"

#define MSM_GSBI4_PHYS		0x16300000
#define MSM_UART4DM_PHYS	(MSM_GSBI4_PHYS + 0x40000)

static struct resource resources_uart_gsbi4[] = {
	{
		.start	= GSBI4_UARTDM_IRQ,
		.end	= GSBI4_UARTDM_IRQ,
		.flags	= IORESOURCE_IRQ,
	},
	{
		.start	= MSM_UART4DM_PHYS,
		.end	= MSM_UART4DM_PHYS + PAGE_SIZE - 1,
		.name	= "uartdm_resource",
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= MSM_GSBI4_PHYS,
		.end	= MSM_GSBI4_PHYS + PAGE_SIZE - 1,
		.name	= "gsbi_resource",
		.flags	= IORESOURCE_MEM,
	},
};

struct platform_device msm9615_device_uart_gsbi4 = {
	.name	= "msm_serial_hsl",
	.id	= 0,
	.num_resources	= ARRAY_SIZE(resources_uart_gsbi4),
	.resource	= resources_uart_gsbi4,
};

#ifdef CONFIG_CACHE_L2X0
static int __init l2x0_cache_init(void)
{
	int aux_ctrl = 0;

	/* Way Size 010(0x2) 32KB */
	aux_ctrl = (0x1 << L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT) | \
		   (0x2 << L2X0_AUX_CTRL_WAY_SIZE_SHIFT) | \
		   (0x1 << L2X0_AUX_CTRL_EVNT_MON_BUS_EN_SHIFT);

	/* L2 Latency setting required by hardware. Default is 0x20
	   which is no good.
	 */
	writel_relaxed(0x220, MSM_L2CC_BASE + L2X0_DATA_LATENCY_CTRL);
	l2x0_init(MSM_L2CC_BASE, aux_ctrl, L2X0_AUX_CTRL_MASK);

	return 0;
}
#else
static int __init l2x0_cache_init(void){ return 0; }
#endif

void __init msm9615_device_init(void)
{
	if (socinfo_init() < 0)
		pr_err("socinfo_init() failed!\n");

	msm_clock_init(&msm9615_clock_init_data);
}

void __init msm9615_map_io(void)
{
	msm_map_msm9615_io();
	l2x0_cache_init();
}

void __init msm9615_init_irq(void)
{
	unsigned int i;
	gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE,
						(void *)MSM_QGIC_CPU_BASE);

	/* Edge trigger PPIs except AVS_SVICINT and AVS_SVICINTSWDONE */
	writel_relaxed(0xFFFFD7FF, MSM_QGIC_DIST_BASE + GIC_DIST_CONFIG + 4);

	writel_relaxed(0x0000FFFF, MSM_QGIC_DIST_BASE + GIC_DIST_ENABLE_SET);
	mb();

	/*
	 * FIXME: Not installing AVS_SVICINT and AVS_SVICINTSWDONE yet
	 * as they are configured as level, which does not play nice with
	 * handle_percpu_irq.
	 */
	for (i = GIC_PPI_START; i < GIC_SPI_START; i++) {
		if (i != AVS_SVICINT && i != AVS_SVICINTSWDONE)
			irq_set_handler(i, handle_percpu_irq);
	}
}