/*
* arch/arm/mach-orion/common.c
*
* Core functions for Marvell Orion System On Chip
*
* Maintainer: Tzachi Perelstein <tzachi@marvell.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/mbus.h>
#include <linux/mv643xx_eth.h>
#include <linux/mv643xx_i2c.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/timex.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/arch/hardware.h>
#include <asm/arch/platform.h>
#include "common.h"
/*****************************************************************************
* I/O Address Mapping
****************************************************************************/
static struct map_desc orion_io_desc[] __initdata = {
{
.virtual = ORION_REGS_VIRT_BASE,
.pfn = __phys_to_pfn(ORION_REGS_PHYS_BASE),
.length = ORION_REGS_SIZE,
.type = MT_DEVICE
},
{
.virtual = ORION_PCIE_IO_VIRT_BASE,
.pfn = __phys_to_pfn(ORION_PCIE_IO_PHYS_BASE),
.length = ORION_PCIE_IO_SIZE,
.type = MT_DEVICE
},
{
.virtual = ORION_PCI_IO_VIRT_BASE,
.pfn = __phys_to_pfn(ORION_PCI_IO_PHYS_BASE),
.length = ORION_PCI_IO_SIZE,
.type = MT_DEVICE
},
{
.virtual = ORION_PCIE_WA_VIRT_BASE,
.pfn = __phys_to_pfn(ORION_PCIE_WA_PHYS_BASE),
.length = ORION_PCIE_WA_SIZE,
.type = MT_DEVICE
},
};
void __init orion_map_io(void)
{
iotable_init(orion_io_desc, ARRAY_SIZE(orion_io_desc));
}
/*****************************************************************************
* UART
****************************************************************************/
static struct resource orion_uart_resources[] = {
{
.start = UART0_PHYS_BASE,
.end = UART0_PHYS_BASE + 0xff,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_ORION_UART0,
.end = IRQ_ORION_UART0,
.flags = IORESOURCE_IRQ,
},
{
.start = UART1_PHYS_BASE,
.end = UART1_PHYS_BASE + 0xff,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_ORION_UART1,
.end = IRQ_ORION_UART1,
.flags = IORESOURCE_IRQ,
},
};
static struct plat_serial8250_port orion_uart_data[] = {
{
.mapbase = UART0_PHYS_BASE,
.membase = (char *)UART0_VIRT_BASE,
.irq = IRQ_ORION_UART0,
.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
.iotype = UPIO_MEM,
.regshift = 2,
.uartclk = ORION_TCLK,
},
{
.mapbase = UART1_PHYS_BASE,
.membase = (char *)UART1_VIRT_BASE,
.irq = IRQ_ORION_UART1,
.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
.iotype = UPIO_MEM,
.regshift = 2,
.uartclk = ORION_TCLK,
},
{ },
};
static struct platform_device orion_uart = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = orion_uart_data,
},
.resource = orion_uart_resources,
.num_resources = ARRAY_SIZE(orion_uart_resources),
};
/*******************************************************************************
* USB Controller - 2 interfaces
******************************************************************************/
static struct resource orion_ehci0_resources[] = {
{
.start = ORION_USB0_PHYS_BASE,
.end = ORION_USB0_PHYS_BASE + SZ_4K,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_ORION_USB0_CTRL,
.end = IRQ_ORION_USB0_CTRL,
.flags = IORESOURCE_IRQ,
},
};
static struct resource orion_ehci1_resources[] = {
{
.start = ORION_USB1_PHYS_BASE,
.end = ORION_USB1_PHYS_BASE + SZ_4K,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_ORION_USB1_CTRL,
.end = IRQ_ORION_USB1_CTRL,
.flags = IORESOURCE_IRQ,
},
};
static struct orion_ehci_data orion_ehci_data = {
.dram = &orion_mbus_dram_info,
};
static u64 ehci_dmamask = 0xffffffffUL;
static struct platform_device orion_ehci0 = {
.name = "orion-ehci",
.id = 0,
.dev = {
.dma_mask = &ehci_dmamask,
.coherent_dma_mask = 0xffffffff,
.platform_data = &orion_ehci_data,
},
.resource = orion_ehci0_resources,
.num_resources = ARRAY_SIZE(orion_ehci0_resources),
};
static struct platform_device orion_ehci1 = {
.name = "orion-ehci",
.id = 1,
.dev = {
.dma_mask = &ehci_dmamask,
.coherent_dma_mask = 0xffffffff,
.platform_data = &orion_ehci_data,
},
.resource = orion_ehci1_resources,
.num_resources = ARRAY_SIZE(orion_ehci1_resources),
};
/*****************************************************************************
* Gigabit Ethernet port
* (The Orion and Discovery (MV643xx) families use the same Ethernet driver)
****************************************************************************/
static struct resource orion_eth_shared_resources[] = {
{
.start = ORION_ETH_PHYS_BASE + 0x2000,
.end = ORION_ETH_PHYS_BASE + 0x3fff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device orion_eth_shared = {
.name = MV643XX_ETH_SHARED_NAME,
.id = 0,
.num_resources = 1,
.resource = orion_eth_shared_resources,
};
static struct resource orion_eth_resources[] = {
{
.name = "eth irq",
.start = IRQ_ORION_ETH_SUM,
.end = IRQ_ORION_ETH_SUM,
.flags = IORESOURCE_IRQ,
}
};
static struct platform_device orion_eth = {
.name = MV643XX_ETH_NAME,
.id = 0,
.num_resources = 1,
.resource = orion_eth_resources,
};
void __init orion_eth_init(struct mv643xx_eth_platform_data *eth_data)
{
orion_eth.dev.platform_data = eth_data;
platform_device_register(&orion_eth_shared);
platform_device_register(&orion_eth);
}
/*****************************************************************************
* I2C controller
* (The Orion and Discovery (MV643xx) families share the same I2C controller)
****************************************************************************/
static struct mv64xxx_i2c_pdata orion_i2c_pdata = {
.freq_m = 8, /* assumes 166 MHz TCLK */
.freq_n = 3,
.timeout = 1000, /* Default timeout of 1 second */
};
static struct resource orion_i2c_resources[] = {
{
.name = "i2c base",
.start = I2C_PHYS_BASE,
.end = I2C_PHYS_BASE + 0x20 -1,
.flags = IORESOURCE_MEM,
},
{
.name = "i2c irq",
.start = IRQ_ORION_I2C,
.end = IRQ_ORION_I2C,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device orion_i2c = {
.name = MV64XXX_I2C_CTLR_NAME,
.id = 0,
.num_resources = ARRAY_SIZE(orion_i2c_resources),
.resource = orion_i2c_resources,
.dev = {
.platform_data = &orion_i2c_pdata,
},
};
/*****************************************************************************
* Sata port
****************************************************************************/
static struct resource orion_sata_resources[] = {
{
.name = "sata base",
.start = ORION_SATA_PHYS_BASE,
.end = ORION_SATA_PHYS_BASE + 0x5000 - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "sata irq",
.start = IRQ_ORION_SATA,
.end = IRQ_ORION_SATA,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device orion_sata = {
.name = "sata_mv",
.id = 0,
.dev = {
.coherent_dma_mask = 0xffffffff,
},
.num_resources = ARRAY_SIZE(orion_sata_resources),
.resource = orion_sata_resources,
};
void __init orion_sata_init(struct mv_sata_platform_data *sata_data)
{
orion_sata.dev.platform_data = sata_data;
platform_device_register(&orion_sata);
}
/*****************************************************************************
* General
****************************************************************************/
/*
* Identify device ID and rev from PCIE configuration header space '0'.
*/
static void orion_id(u32 *dev, u32 *rev, char **dev_name)
{
orion_pcie_id(dev, rev);
if (*dev == MV88F5281_DEV_ID) {
if (*rev == MV88F5281_REV_D2) {
*dev_name = "MV88F5281-D2";
} else if (*rev == MV88F5281_REV_D1) {
*dev_name = "MV88F5281-D1";
} else {
*dev_name = "MV88F5281-Rev-Unsupported";
}
} else if (*dev == MV88F5182_DEV_ID) {
if (*rev == MV88F5182_REV_A2) {
*dev_name = "MV88F5182-A2";
} else {
*dev_name = "MV88F5182-Rev-Unsupported";
}
} else if (*dev == MV88F5181_DEV_ID) {
if (*rev == MV88F5181_REV_B1) {
*dev_name = "MV88F5181-Rev-B1";
} else {
*dev_name = "MV88F5181-Rev-Unsupported";
}
} else {
*dev_name = "Device-Unknown";
}
}
void __init orion_init(void)
{
char *dev_name;
u32 dev, rev;
orion_id(&dev, &rev, &dev_name);
printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION_TCLK);
/*
* Setup Orion address map
*/
orion_setup_cpu_wins();
orion_setup_eth_wins();
if (dev == MV88F5182_DEV_ID)
orion_setup_sata_wins();
/*
* REgister devices
*/
platform_device_register(&orion_uart);
platform_device_register(&orion_ehci0);
if (dev == MV88F5182_DEV_ID)
platform_device_register(&orion_ehci1);
platform_device_register(&orion_i2c);
}
/*
* Many orion-based systems have buggy bootloader implementations.
* This is a common fixup for bogus memory tags.
*/
void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t,
char **from, struct meminfo *meminfo)
{
for (; t->hdr.size; t = tag_next(t))
if (t->hdr.tag == ATAG_MEM &&
(!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
t->u.mem.start & ~PAGE_MASK)) {
printk(KERN_WARNING
"Clearing invalid memory bank %dKB@0x%08x\n",
t->u.mem.size / 1024, t->u.mem.start);
t->hdr.tag = 0;
}
}
