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c67de5b3c0
The Orion has fully programable address map. There's a separate address map for each of the device _master_ interfaces, e.g. CPU, PCI, PCIE, USB, Gigabit Ethernet, DMA/XOR engines, etc. Signed-off-by: Tzachi Perelstein <tzachi@marvell.com> Reviewed-by: Nicolas Pitre <nico@marvell.com> Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/*
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* arch/arm/mach-orion/common.c
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*
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* Core functions for Marvell Orion System On Chip
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*
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* Maintainer: Tzachi Perelstein <tzachi@marvell.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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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 <asm/page.h>
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#include <asm/timex.h>
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#include <asm/mach/map.h>
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#include <asm/arch/orion.h>
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#include "common.h"
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/*****************************************************************************
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* I/O Address Mapping
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****************************************************************************/
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static struct map_desc orion_io_desc[] __initdata = {
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{
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.virtual = ORION_REGS_BASE,
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.pfn = __phys_to_pfn(ORION_REGS_BASE),
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.length = ORION_REGS_SIZE,
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.type = MT_DEVICE
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},
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{
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.virtual = ORION_PCIE_IO_BASE,
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.pfn = __phys_to_pfn(ORION_PCIE_IO_BASE),
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.length = ORION_PCIE_IO_SIZE,
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.type = MT_DEVICE
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},
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{
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.virtual = ORION_PCI_IO_BASE,
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.pfn = __phys_to_pfn(ORION_PCI_IO_BASE),
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.length = ORION_PCI_IO_SIZE,
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.type = MT_DEVICE
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},
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{
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.virtual = ORION_PCIE_WA_BASE,
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.pfn = __phys_to_pfn(ORION_PCIE_WA_BASE),
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.length = ORION_PCIE_WA_SIZE,
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.type = MT_DEVICE
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},
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};
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void __init orion_map_io(void)
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{
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iotable_init(orion_io_desc, ARRAY_SIZE(orion_io_desc));
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}
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/*****************************************************************************
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* General
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****************************************************************************/
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/*
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* Identify device ID and rev from PCIE configuration header space '0'.
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*/
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static void orion_id(u32 *dev, u32 *rev, char **dev_name)
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{
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orion_pcie_id(dev, rev);
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if (*dev == MV88F5281_DEV_ID) {
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if (*rev == MV88F5281_REV_D2) {
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*dev_name = "MV88F5281-D2";
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} else if (*rev == MV88F5281_REV_D1) {
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*dev_name = "MV88F5281-D1";
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} else {
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*dev_name = "MV88F5281-Rev-Unsupported";
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}
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} else if (*dev == MV88F5182_DEV_ID) {
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if (*rev == MV88F5182_REV_A2) {
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*dev_name = "MV88F5182-A2";
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} else {
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*dev_name = "MV88F5182-Rev-Unsupported";
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}
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} else {
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*dev_name = "Device-Unknown";
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}
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}
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void __init orion_init(void)
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{
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char *dev_name;
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u32 dev, rev;
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orion_id(&dev, &rev, &dev_name);
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printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION_TCLK);
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/*
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* Setup Orion address map
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*/
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orion_setup_cpu_wins();
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orion_setup_usb_wins();
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orion_setup_eth_wins();
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orion_setup_pci_wins();
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orion_setup_pcie_wins();
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if (dev == MV88F5182_DEV_ID)
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orion_setup_sata_wins();
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}
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