1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2012 Juergen Beisert <kernel@pengutronix.de>
/* Collection of some SoC specific functions */
#include <common.h>
#include <init.h>
#include <restart.h>
#include <mach/mxs/imx23-regs.h>
#include <io.h>
#include <asm/memory.h>
#include <mach/mxs/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("soc", imx23_restart_soc);
return 0;
}
postcore_initcall(imx23_devices_init);
|
