1/*
  2 * arch/arm/mach-imx/mm-imx27.c
  3 *
  4 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
  5 *
  6 * This program is free software; you can redistribute it and/or
  7 * modify it under the terms of the GNU General Public License
  8 * as published by the Free Software Foundation; either version 2
  9 * of the License, or (at your option) any later version.
 10 * This program is distributed in the hope that it will be useful,
 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13 * GNU General Public License for more details.
 14 *
 15 * You should have received a copy of the GNU General Public License
 16 * along with this program; if not, write to the Free Software
 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 18 * MA 02110-1301, USA.
 19 */
 20
 21#include <linux/mm.h>
 22#include <linux/init.h>
 23#include <linux/pinctrl/machine.h>
 24#include <asm/pgtable.h>
 25#include <asm/mach/map.h>
 26
 27#include "common.h"
 28#include "devices/devices-common.h"
 29#include "hardware.h"
 30#include "iomux-v1.h"
 31
 32/* MX27 memory map definition */
 33static struct map_desc imx27_io_desc[] __initdata = {
 34	/*
 35	 * this fixed mapping covers:
 36	 * - AIPI1
 37	 * - AIPI2
 38	 * - AITC
 39	 * - ROM Patch
 40	 * - and some reserved space
 41	 */
 42	imx_map_entry(MX27, AIPI, MT_DEVICE),
 43	/*
 44	 * this fixed mapping covers:
 45	 * - CSI
 46	 * - ATA
 47	 */
 48	imx_map_entry(MX27, SAHB1, MT_DEVICE),
 49	/*
 50	 * this fixed mapping covers:
 51	 * - EMI
 52	 */
 53	imx_map_entry(MX27, X_MEMC, MT_DEVICE),
 54};
 55
 56/*
 57 * Initialize the memory map. It is called during the
 58 * system startup to create static physical to virtual
 59 * memory map for the IO modules.
 60 */
 61void __init mx27_map_io(void)
 62{
 63	iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc));
 64}
 65
 66void __init imx27_init_early(void)
 67{
 68	mxc_set_cpu_type(MXC_CPU_MX27);
 69	imx_iomuxv1_init(MX27_IO_ADDRESS(MX27_GPIO_BASE_ADDR),
 70			MX27_NUM_GPIO_PORT);
 71}
 72
 73void __init mx27_init_irq(void)
 74{
 75	mxc_init_irq(MX27_IO_ADDRESS(MX27_AVIC_BASE_ADDR));
 76}
 77
 78static const struct resource imx27_audmux_res[] __initconst = {
 79	DEFINE_RES_MEM(MX27_AUDMUX_BASE_ADDR, SZ_4K),
 80};
 81
 82void __init imx27_soc_init(void)
 83{
 84	mxc_arch_reset_init(MX27_IO_ADDRESS(MX27_WDOG_BASE_ADDR));
 85	mxc_device_init();
 86
 87	/* i.mx27 has the i.mx21 type gpio */
 88	mxc_register_gpio("imx21-gpio", 0, MX27_GPIO1_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
 89	mxc_register_gpio("imx21-gpio", 1, MX27_GPIO2_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
 90	mxc_register_gpio("imx21-gpio", 2, MX27_GPIO3_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
 91	mxc_register_gpio("imx21-gpio", 3, MX27_GPIO4_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
 92	mxc_register_gpio("imx21-gpio", 4, MX27_GPIO5_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
 93	mxc_register_gpio("imx21-gpio", 5, MX27_GPIO6_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
 94
 95	pinctrl_provide_dummies();
 96	imx_add_imx_dma("imx27-dma", MX27_DMA_BASE_ADDR,
 97			MX27_INT_DMACH0, 0); /* No ERR irq */
 98	/* imx27 has the imx21 type audmux */
 99	platform_device_register_simple("imx21-audmux", 0, imx27_audmux_res,
100					ARRAY_SIZE(imx27_audmux_res));
101}