- 根目录:
- arch
- arm
- mach-dove
- common.c
/*
* arch/arm/mach-dove/common.c
*
* Core functions for Marvell Dove 88AP510 System On Chip
*
* 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/delay.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/clk.h>
#include <linux/ata_platform.h>
#include <linux/gpio.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/timex.h>
#include <asm/hardware/cache-tauros2.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <asm/mach/pci.h>
#include <mach/dove.h>
#include <mach/bridge-regs.h>
#include <asm/mach/arch.h>
#include <linux/irq.h>
#include <plat/time.h>
#include <plat/ehci-orion.h>
#include <plat/common.h>
#include <plat/addr-map.h>
#include "common.h"
static int get_tclk(void);
/*****************************************************************************
* I/O Address Mapping
****************************************************************************/
static struct map_desc dove_io_desc[] __initdata = {
{
.virtual = DOVE_SB_REGS_VIRT_BASE,
.pfn = __phys_to_pfn(DOVE_SB_REGS_PHYS_BASE),
.length = DOVE_SB_REGS_SIZE,
.type = MT_DEVICE,
}, {
.virtual = DOVE_NB_REGS_VIRT_BASE,
.pfn = __phys_to_pfn(DOVE_NB_REGS_PHYS_BASE),
.length = DOVE_NB_REGS_SIZE,
.type = MT_DEVICE,
}, {
.virtual = DOVE_PCIE0_IO_VIRT_BASE,
.pfn = __phys_to_pfn(DOVE_PCIE0_IO_PHYS_BASE),
.length = DOVE_PCIE0_IO_SIZE,
.type = MT_DEVICE,
}, {
.virtual = DOVE_PCIE1_IO_VIRT_BASE,
.pfn = __phys_to_pfn(DOVE_PCIE1_IO_PHYS_BASE),
.length = DOVE_PCIE1_IO_SIZE,
.type = MT_DEVICE,
},
};
void __init dove_map_io(void)
{
iotable_init(dove_io_desc, ARRAY_SIZE(dove_io_desc));
}
/*****************************************************************************
* EHCI0
****************************************************************************/
void __init dove_ehci0_init(void)
{
orion_ehci_init(DOVE_USB0_PHYS_BASE, IRQ_DOVE_USB0, EHCI_PHY_NA);
}
/*****************************************************************************
* EHCI1
****************************************************************************/
void __init dove_ehci1_init(void)
{
orion_ehci_1_init(DOVE_USB1_PHYS_BASE, IRQ_DOVE_USB1);
}
/*****************************************************************************
* GE00
****************************************************************************/
void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data)
{
orion_ge00_init(eth_data,
DOVE_GE00_PHYS_BASE, IRQ_DOVE_GE00_SUM,
0, get_tclk());
}
/*****************************************************************************
* SoC RTC
****************************************************************************/
void __init dove_rtc_init(void)
{
orion_rtc_init(DOVE_RTC_PHYS_BASE, IRQ_DOVE_RTC);
}
/*****************************************************************************
* SATA
****************************************************************************/
void __init dove_sata_init(struct mv_sata_platform_data *sata_data)
{
orion_sata_init(sata_data, DOVE_SATA_PHYS_BASE, IRQ_DOVE_SATA);
}
/*****************************************************************************
* UART0
****************************************************************************/
void __init dove_uart0_init(void)
{
orion_uart0_init(DOVE_UART0_VIRT_BASE, DOVE_UART0_PHYS_BASE,
IRQ_DOVE_UART_0, get_tclk());
}
/*****************************************************************************
* UART1
****************************************************************************/
void __init dove_uart1_init(void)
{
orion_uart1_init(DOVE_UART1_VIRT_BASE, DOVE_UART1_PHYS_BASE,
IRQ_DOVE_UART_1, get_tclk());
}
/*****************************************************************************
* UART2
****************************************************************************/
void __init dove_uart2_init(void)
{
orion_uart2_init(DOVE_UART2_VIRT_BASE, DOVE_UART2_PHYS_BASE,
IRQ_DOVE_UART_2, get_tclk());
}
/*****************************************************************************
* UART3
****************************************************************************/
void __init dove_uart3_init(void)
{
orion_uart3_init(DOVE_UART3_VIRT_BASE, DOVE_UART3_PHYS_BASE,
IRQ_DOVE_UART_3, get_tclk());
}
/*****************************************************************************
* SPI
****************************************************************************/
void __init dove_spi0_init(void)
{
orion_spi_init(DOVE_SPI0_PHYS_BASE, get_tclk());
}
void __init dove_spi1_init(void)
{
orion_spi_1_init(DOVE_SPI1_PHYS_BASE, get_tclk());
}
/*****************************************************************************
* I2C
****************************************************************************/
void __init dove_i2c_init(void)
{
orion_i2c_init(DOVE_I2C_PHYS_BASE, IRQ_DOVE_I2C, 10);
}
/*****************************************************************************
* Time handling
****************************************************************************/
void __init dove_init_early(void)
{
orion_time_set_base(TIMER_VIRT_BASE);
}
static int get_tclk(void)
{
/* use DOVE_RESET_SAMPLE_HI/LO to detect tclk */
return 166666667;
}
static void dove_timer_init(void)
{
orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
IRQ_DOVE_BRIDGE, get_tclk());
}
struct sys_timer dove_timer = {
.init = dove_timer_init,
};
/*****************************************************************************
* XOR 0
****************************************************************************/
void __init dove_xor0_init(void)
{
orion_xor0_init(DOVE_XOR0_PHYS_BASE, DOVE_XOR0_HIGH_PHYS_BASE,
IRQ_DOVE_XOR_00, IRQ_DOVE_XOR_01);
}
/*****************************************************************************
* XOR 1
****************************************************************************/
void __init dove_xor1_init(void)
{
orion_xor1_init(DOVE_XOR1_PHYS_BASE, DOVE_XOR1_HIGH_PHYS_BASE,
IRQ_DOVE_XOR_10, IRQ_DOVE_XOR_11);
}
/*****************************************************************************
* SDIO
****************************************************************************/
static u64 sdio_dmamask = DMA_BIT_MASK(32);
static struct resource dove_sdio0_resources[] = {
{
.start = DOVE_SDIO0_PHYS_BASE,
.end = DOVE_SDIO0_PHYS_BASE + 0xff,
.flags = IORESOURCE_MEM,
}, {
.start = IRQ_DOVE_SDIO0,
.end = IRQ_DOVE_SDIO0,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device dove_sdio0 = {
.name = "sdhci-dove",
.id = 0,
.dev = {
.dma_mask = &sdio_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = dove_sdio0_resources,
.num_resources = ARRAY_SIZE(dove_sdio0_resources),
};
void __init dove_sdio0_init(void)
{
platform_device_register(&dove_sdio0);
}
static struct resource dove_sdio1_resources[] = {
{
.start = DOVE_SDIO1_PHYS_BASE,
.end = DOVE_SDIO1_PHYS_BASE + 0xff,
.flags = IORESOURCE_MEM,
}, {
.start = IRQ_DOVE_SDIO1,
.end = IRQ_DOVE_SDIO1,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device dove_sdio1 = {
.name = "sdhci-dove",
.id = 1,
.dev = {
.dma_mask = &sdio_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = dove_sdio1_resources,
.num_resources = ARRAY_SIZE(dove_sdio1_resources),
};
void __init dove_sdio1_init(void)
{
platform_device_register(&dove_sdio1);
}
void __init dove_init(void)
{
int tclk;
tclk = get_tclk();
printk(KERN_INFO "Dove 88AP510 SoC, ");
printk(KERN_INFO "TCLK = %dMHz\n", (tclk + 499999) / 1000000);
#ifdef CONFIG_CACHE_TAUROS2
tauros2_init();
#endif
dove_setup_cpu_mbus();
/* internal devices that every board has */
dove_rtc_init();
dove_xor0_init();
dove_xor1_init();
}
void dove_restart(char mode, const char *cmd)
{
/*
* Enable soft reset to assert RSTOUTn.
*/
writel(SOFT_RESET_OUT_EN, RSTOUTn_MASK);
/*
* Assert soft reset.
*/
writel(SOFT_RESET, SYSTEM_SOFT_RESET);
while (1)
;
}