165 lines
4.0 KiB
C
165 lines
4.0 KiB
C
/*
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* Board support file for OMAP4430 SDP.
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*
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* Copyright (C) 2009 Texas Instruments
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*
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* Author: Santosh Shilimkar <santosh.shilimkar@ti.com>
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*
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* Based on mach-omap2/board-3430sdp.c
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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 as
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* published by the Free Software Foundation.
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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/platform_device.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include <linux/usb/otg.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <plat/board.h>
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#include <plat/common.h>
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#include <plat/control.h>
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#include <plat/timer-gp.h>
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#include <plat/usb.h>
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#include <asm/hardware/gic.h>
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#include <asm/hardware/cache-l2x0.h>
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static struct platform_device sdp4430_lcd_device = {
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.name = "sdp4430_lcd",
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.id = -1,
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};
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static struct platform_device *sdp4430_devices[] __initdata = {
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&sdp4430_lcd_device,
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};
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static struct omap_lcd_config sdp4430_lcd_config __initdata = {
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.ctrl_name = "internal",
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};
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static struct omap_board_config_kernel sdp4430_config[] __initdata = {
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{ OMAP_TAG_LCD, &sdp4430_lcd_config },
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};
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#ifdef CONFIG_CACHE_L2X0
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noinline void omap_smc1(u32 fn, u32 arg)
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{
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register u32 r12 asm("r12") = fn;
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register u32 r0 asm("r0") = arg;
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/* This is common routine cache secure monitor API used to
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* modify the PL310 secure registers.
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* r0 contains the value to be modified and "r12" contains
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* the monitor API number. It uses few CPU registers
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* internally and hence they need be backed up including
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* link register "lr".
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* Explicitly save r11 and r12 the compiler generated code
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* won't save it.
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*/
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asm volatile(
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"stmfd r13!, {r11,r12}\n"
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"dsb\n"
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"smc\n"
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"ldmfd r13!, {r11,r12}\n"
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: "+r" (r0), "+r" (r12)
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:
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: "r4", "r5", "r10", "lr", "cc");
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}
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EXPORT_SYMBOL(omap_smc1);
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static int __init omap_l2_cache_init(void)
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{
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void __iomem *l2cache_base;
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/* To avoid code running on other OMAPs in
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* multi-omap builds
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*/
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if (!cpu_is_omap44xx())
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return -ENODEV;
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/* Static mapping, never released */
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l2cache_base = ioremap(OMAP44XX_L2CACHE_BASE, SZ_4K);
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BUG_ON(!l2cache_base);
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/* Enable PL310 L2 Cache controller */
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omap_smc1(0x102, 0x1);
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/* 32KB way size, 16-way associativity,
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* parity disabled
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*/
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l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff);
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return 0;
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}
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early_initcall(omap_l2_cache_init);
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#endif
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static void __init gic_init_irq(void)
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{
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void __iomem *base;
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/* Static mapping, never released */
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base = ioremap(OMAP44XX_GIC_DIST_BASE, SZ_4K);
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BUG_ON(!base);
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gic_dist_init(0, base, 29);
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/* Static mapping, never released */
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gic_cpu_base_addr = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
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BUG_ON(!gic_cpu_base_addr);
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gic_cpu_init(0, gic_cpu_base_addr);
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}
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static void __init omap_4430sdp_init_irq(void)
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{
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omap_board_config = sdp4430_config;
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omap_board_config_size = ARRAY_SIZE(sdp4430_config);
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omap2_init_common_hw(NULL, NULL);
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#ifdef CONFIG_OMAP_32K_TIMER
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omap2_gp_clockevent_set_gptimer(1);
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#endif
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gic_init_irq();
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omap_gpio_init();
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}
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static struct omap_musb_board_data musb_board_data = {
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.interface_type = MUSB_INTERFACE_UTMI,
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.mode = MUSB_PERIPHERAL,
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.power = 100,
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};
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static void __init omap_4430sdp_init(void)
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{
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platform_add_devices(sdp4430_devices, ARRAY_SIZE(sdp4430_devices));
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omap_serial_init();
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/* OMAP4 SDP uses internal transceiver so register nop transceiver */
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usb_nop_xceiv_register();
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/* FIXME: allow multi-omap to boot until musb is updated for omap4 */
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if (!cpu_is_omap44xx())
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usb_musb_init(&musb_board_data);
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}
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static void __init omap_4430sdp_map_io(void)
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{
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omap2_set_globals_443x();
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omap44xx_map_common_io();
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}
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MACHINE_START(OMAP_4430SDP, "OMAP4430 4430SDP board")
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/* Maintainer: Santosh Shilimkar - Texas Instruments Inc */
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.phys_io = 0x48000000,
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.io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
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.boot_params = 0x80000100,
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.map_io = omap_4430sdp_map_io,
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.init_irq = omap_4430sdp_init_irq,
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.init_machine = omap_4430sdp_init,
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.timer = &omap_timer,
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MACHINE_END
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