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mxc: Core support for Freescale i.MX5 series

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Add basic clock support, cpu identification, I/O mapping, interrupt
controller, serial port and ethernet.

Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
This commit is contained in:
Amit Kucheria
2010-02-04 12:21:53 -08:00
parent 438caa3f6c
commit a329b48c43
10 changed files with 2433 additions and 3 deletions
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89
arch/arm/mach-mx5/mm.c Normal file
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/*
* Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*
* Create static mapping between physical to virtual memory.
*/
#include <linux/mm.h>
#include <linux/init.h>
#include <asm/mach/map.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/iomux-v3.h>
/*
* Define the MX51 memory map.
*/
static struct map_desc mxc_io_desc[] __initdata = {
{
.virtual = MX51_IRAM_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(MX51_IRAM_BASE_ADDR),
.length = MX51_IRAM_SIZE,
.type = MT_DEVICE
}, {
.virtual = MX51_DEBUG_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(MX51_DEBUG_BASE_ADDR),
.length = MX51_DEBUG_SIZE,
.type = MT_DEVICE
}, {
.virtual = MX51_TZIC_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(MX51_TZIC_BASE_ADDR),
.length = MX51_TZIC_SIZE,
.type = MT_DEVICE
}, {
.virtual = MX51_AIPS1_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(MX51_AIPS1_BASE_ADDR),
.length = MX51_AIPS1_SIZE,
.type = MT_DEVICE
}, {
.virtual = MX51_SPBA0_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(MX51_SPBA0_BASE_ADDR),
.length = MX51_SPBA0_SIZE,
.type = MT_DEVICE
}, {
.virtual = MX51_AIPS2_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(MX51_AIPS2_BASE_ADDR),
.length = MX51_AIPS2_SIZE,
.type = MT_DEVICE
}, {
.virtual = MX51_NFC_AXI_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(MX51_NFC_AXI_BASE_ADDR),
.length = MX51_NFC_AXI_SIZE,
.type = MT_DEVICE
},
};
/*
* This function initializes the memory map. It is called during the
* system startup to create static physical to virtual memory mappings
* for the IO modules.
*/
void __init mx51_map_io(void)
{
u32 tzic_addr;
if (mx51_revision() < MX51_CHIP_REV_2_0)
tzic_addr = 0x8FFFC000;
else
tzic_addr = 0xE0003000;
mxc_io_desc[2].pfn = __phys_to_pfn(tzic_addr);
mxc_set_cpu_type(MXC_CPU_MX51);
mxc_iomux_v3_init(MX51_IO_ADDRESS(MX51_IOMUXC_BASE_ADDR));
mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG_BASE_ADDR));
iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
}
void __init mx51_init_irq(void)
{
tzic_init_irq(MX51_IO_ADDRESS(MX51_TZIC_BASE_ADDR));
}