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/*
* (c) 2012 Juergen Beisert <kernel@pengutronix.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* Collection of some SoC specific functions
*/
#include <common.h>
#include <init.h>
#include <restart.h>
#include <mach/imx23-regs.h>
#include <io.h>
#include <asm/memory.h>
#include <mach/imx23.h>
#define HW_CLKCTRL_RESET 0x120
# define HW_CLKCTRL_RESET_CHIP (1 << 1)
/* Reset the full i.MX23 SoC via a chipset feature */
static void __noreturn imx23_restart_soc(struct restart_handler *rst)
{
u32 reg;
reg = readl(IMX_CCM_BASE + HW_CLKCTRL_RESET);
writel(reg | HW_CLKCTRL_RESET_CHIP, IMX_CCM_BASE + HW_CLKCTRL_RESET);
hang();
/*NOTREACHED*/
}
static int imx23_devices_init(void)
{
arm_add_mem_device("ram0", IMX_MEMORY_BASE, imx23_get_memsize());
if (of_get_root_node())
return 0;
add_generic_device("imx23-dma-apbh", 0, NULL, MXS_APBH_BASE, 0x2000, IORESOURCE_MEM, NULL);
add_generic_device("imx23-clkctrl", 0, NULL, IMX_CCM_BASE, 0x100, IORESOURCE_MEM, NULL);
add_generic_device("imx23-gpio", 0, NULL, IMX_IOMUXC_BASE, 0x2000, IORESOURCE_MEM, NULL);
add_generic_device("imx23-gpio", 1, NULL, IMX_IOMUXC_BASE, 0x2000, IORESOURCE_MEM, NULL);
add_generic_device("imx23-gpio", 2, NULL, IMX_IOMUXC_BASE, 0x2000, IORESOURCE_MEM, NULL);
restart_handler_register_fn(imx23_restart_soc);
return 0;
}
postcore_initcall(imx23_devices_init);
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