332 lines
8.1 KiB
C
332 lines
8.1 KiB
C
/*
|
|
* arch/arm/mach-kirkwood/common.c
|
|
*
|
|
* Core functions for Marvell Kirkwood SoCs
|
|
*
|
|
* 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/ata_platform.h>
|
|
#include <asm/page.h>
|
|
#include <asm/timex.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/time.h>
|
|
#include <asm/arch/kirkwood.h>
|
|
#include <asm/plat-orion/cache-feroceon-l2.h>
|
|
#include <asm/plat-orion/ehci-orion.h>
|
|
#include <asm/plat-orion/orion_nand.h>
|
|
#include <asm/plat-orion/time.h>
|
|
#include "common.h"
|
|
|
|
/*****************************************************************************
|
|
* I/O Address Mapping
|
|
****************************************************************************/
|
|
static struct map_desc kirkwood_io_desc[] __initdata = {
|
|
{
|
|
.virtual = KIRKWOOD_PCIE_IO_VIRT_BASE,
|
|
.pfn = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
|
|
.length = KIRKWOOD_PCIE_IO_SIZE,
|
|
.type = MT_DEVICE,
|
|
}, {
|
|
.virtual = KIRKWOOD_REGS_VIRT_BASE,
|
|
.pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
|
|
.length = KIRKWOOD_REGS_SIZE,
|
|
.type = MT_DEVICE,
|
|
},
|
|
};
|
|
|
|
void __init kirkwood_map_io(void)
|
|
{
|
|
iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* EHCI
|
|
****************************************************************************/
|
|
static struct orion_ehci_data kirkwood_ehci_data = {
|
|
.dram = &kirkwood_mbus_dram_info,
|
|
};
|
|
|
|
static u64 ehci_dmamask = 0xffffffffUL;
|
|
|
|
|
|
/*****************************************************************************
|
|
* EHCI0
|
|
****************************************************************************/
|
|
static struct resource kirkwood_ehci_resources[] = {
|
|
{
|
|
.start = USB_PHYS_BASE,
|
|
.end = USB_PHYS_BASE + 0x0fff,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.start = IRQ_KIRKWOOD_USB,
|
|
.end = IRQ_KIRKWOOD_USB,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device kirkwood_ehci = {
|
|
.name = "orion-ehci",
|
|
.id = 0,
|
|
.dev = {
|
|
.dma_mask = &ehci_dmamask,
|
|
.coherent_dma_mask = 0xffffffff,
|
|
.platform_data = &kirkwood_ehci_data,
|
|
},
|
|
.resource = kirkwood_ehci_resources,
|
|
.num_resources = ARRAY_SIZE(kirkwood_ehci_resources),
|
|
};
|
|
|
|
void __init kirkwood_ehci_init(void)
|
|
{
|
|
platform_device_register(&kirkwood_ehci);
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* GE00
|
|
****************************************************************************/
|
|
struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
|
|
.t_clk = KIRKWOOD_TCLK,
|
|
.dram = &kirkwood_mbus_dram_info,
|
|
};
|
|
|
|
static struct resource kirkwood_ge00_shared_resources[] = {
|
|
{
|
|
.name = "ge00 base",
|
|
.start = GE00_PHYS_BASE + 0x2000,
|
|
.end = GE00_PHYS_BASE + 0x3fff,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
};
|
|
|
|
static struct platform_device kirkwood_ge00_shared = {
|
|
.name = MV643XX_ETH_SHARED_NAME,
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &kirkwood_ge00_shared_data,
|
|
},
|
|
.num_resources = 1,
|
|
.resource = kirkwood_ge00_shared_resources,
|
|
};
|
|
|
|
static struct resource kirkwood_ge00_resources[] = {
|
|
{
|
|
.name = "ge00 irq",
|
|
.start = IRQ_KIRKWOOD_GE00_SUM,
|
|
.end = IRQ_KIRKWOOD_GE00_SUM,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device kirkwood_ge00 = {
|
|
.name = MV643XX_ETH_NAME,
|
|
.id = 0,
|
|
.num_resources = 1,
|
|
.resource = kirkwood_ge00_resources,
|
|
};
|
|
|
|
void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
|
|
{
|
|
eth_data->shared = &kirkwood_ge00_shared;
|
|
kirkwood_ge00.dev.platform_data = eth_data;
|
|
|
|
platform_device_register(&kirkwood_ge00_shared);
|
|
platform_device_register(&kirkwood_ge00);
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* SoC RTC
|
|
****************************************************************************/
|
|
static struct resource kirkwood_rtc_resource = {
|
|
.start = RTC_PHYS_BASE,
|
|
.end = RTC_PHYS_BASE + SZ_16 - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
void __init kirkwood_rtc_init(void)
|
|
{
|
|
platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* SATA
|
|
****************************************************************************/
|
|
static struct resource kirkwood_sata_resources[] = {
|
|
{
|
|
.name = "sata base",
|
|
.start = SATA_PHYS_BASE,
|
|
.end = SATA_PHYS_BASE + 0x5000 - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.name = "sata irq",
|
|
.start = IRQ_KIRKWOOD_SATA,
|
|
.end = IRQ_KIRKWOOD_SATA,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device kirkwood_sata = {
|
|
.name = "sata_mv",
|
|
.id = 0,
|
|
.dev = {
|
|
.coherent_dma_mask = 0xffffffff,
|
|
},
|
|
.num_resources = ARRAY_SIZE(kirkwood_sata_resources),
|
|
.resource = kirkwood_sata_resources,
|
|
};
|
|
|
|
void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
|
|
{
|
|
sata_data->dram = &kirkwood_mbus_dram_info;
|
|
kirkwood_sata.dev.platform_data = sata_data;
|
|
platform_device_register(&kirkwood_sata);
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* UART0
|
|
****************************************************************************/
|
|
static struct plat_serial8250_port kirkwood_uart0_data[] = {
|
|
{
|
|
.mapbase = UART0_PHYS_BASE,
|
|
.membase = (char *)UART0_VIRT_BASE,
|
|
.irq = IRQ_KIRKWOOD_UART_0,
|
|
.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
|
|
.iotype = UPIO_MEM,
|
|
.regshift = 2,
|
|
.uartclk = KIRKWOOD_TCLK,
|
|
}, {
|
|
},
|
|
};
|
|
|
|
static struct resource kirkwood_uart0_resources[] = {
|
|
{
|
|
.start = UART0_PHYS_BASE,
|
|
.end = UART0_PHYS_BASE + 0xff,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.start = IRQ_KIRKWOOD_UART_0,
|
|
.end = IRQ_KIRKWOOD_UART_0,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device kirkwood_uart0 = {
|
|
.name = "serial8250",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = kirkwood_uart0_data,
|
|
},
|
|
.resource = kirkwood_uart0_resources,
|
|
.num_resources = ARRAY_SIZE(kirkwood_uart0_resources),
|
|
};
|
|
|
|
void __init kirkwood_uart0_init(void)
|
|
{
|
|
platform_device_register(&kirkwood_uart0);
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* UART1
|
|
****************************************************************************/
|
|
static struct plat_serial8250_port kirkwood_uart1_data[] = {
|
|
{
|
|
.mapbase = UART1_PHYS_BASE,
|
|
.membase = (char *)UART1_VIRT_BASE,
|
|
.irq = IRQ_KIRKWOOD_UART_1,
|
|
.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
|
|
.iotype = UPIO_MEM,
|
|
.regshift = 2,
|
|
.uartclk = KIRKWOOD_TCLK,
|
|
}, {
|
|
},
|
|
};
|
|
|
|
static struct resource kirkwood_uart1_resources[] = {
|
|
{
|
|
.start = UART1_PHYS_BASE,
|
|
.end = UART1_PHYS_BASE + 0xff,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.start = IRQ_KIRKWOOD_UART_1,
|
|
.end = IRQ_KIRKWOOD_UART_1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device kirkwood_uart1 = {
|
|
.name = "serial8250",
|
|
.id = 1,
|
|
.dev = {
|
|
.platform_data = kirkwood_uart1_data,
|
|
},
|
|
.resource = kirkwood_uart1_resources,
|
|
.num_resources = ARRAY_SIZE(kirkwood_uart1_resources),
|
|
};
|
|
|
|
void __init kirkwood_uart1_init(void)
|
|
{
|
|
platform_device_register(&kirkwood_uart1);
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* Time handling
|
|
****************************************************************************/
|
|
static void kirkwood_timer_init(void)
|
|
{
|
|
orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK);
|
|
}
|
|
|
|
struct sys_timer kirkwood_timer = {
|
|
.init = kirkwood_timer_init,
|
|
};
|
|
|
|
|
|
/*****************************************************************************
|
|
* General
|
|
****************************************************************************/
|
|
static char * __init kirkwood_id(void)
|
|
{
|
|
switch (readl(DEVICE_ID) & 0x3) {
|
|
case 0:
|
|
return "88F6180";
|
|
case 1:
|
|
return "88F6192";
|
|
case 2:
|
|
return "88F6281";
|
|
}
|
|
|
|
return "unknown 88F6000 variant";
|
|
}
|
|
|
|
static int __init is_l2_writethrough(void)
|
|
{
|
|
return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH);
|
|
}
|
|
|
|
void __init kirkwood_init(void)
|
|
{
|
|
printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
|
|
kirkwood_id(), KIRKWOOD_TCLK);
|
|
|
|
kirkwood_setup_cpu_mbus();
|
|
|
|
#ifdef CONFIG_CACHE_FEROCEON_L2
|
|
feroceon_l2_init(is_l2_writethrough());
|
|
#endif
|
|
}
|