/*
* Versatile Express V2M Motherboard Support
*/
#include <linux/device.h>
#include <linux/amba/bus.h>
#include <linux/amba/mmci.h>
#include <linux/io.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/smsc911x.h>
#include <linux/spinlock.h>
#include <linux/sysdev.h>
#include <linux/usb/isp1760.h>
#include <asm/clkdev.h>
#include <asm/sizes.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <asm/hardware/arm_timer.h>
#include <mach/clkdev.h>
#include <mach/motherboard.h>
#include <plat/timer-sp.h>
#include "core.h"
#define V2M_PA_CS0 0x40000000
#define V2M_PA_CS1 0x44000000
#define V2M_PA_CS2 0x48000000
#define V2M_PA_CS3 0x4c000000
#define V2M_PA_CS7 0x10000000
static struct map_desc v2m_io_desc[] __initdata = {
{
.virtual = __MMIO_P2V(V2M_PA_CS7),
.pfn = __phys_to_pfn(V2M_PA_CS7),
.length = SZ_128K,
.type = MT_DEVICE,
},
};
void __init v2m_map_io(struct map_desc *tile, size_t num)
{
iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc));
iotable_init(tile, num);
}
static void v2m_timer_init(void)
{
writel(0, MMIO_P2V(V2M_TIMER0) + TIMER_CTRL);
writel(0, MMIO_P2V(V2M_TIMER1) + TIMER_CTRL);
sp804_clocksource_init(MMIO_P2V(V2M_TIMER1));
sp804_clockevents_init(MMIO_P2V(V2M_TIMER0), IRQ_V2M_TIMER0);
}
struct sys_timer v2m_timer = {
.init = v2m_timer_init,
};
static DEFINE_SPINLOCK(v2m_cfg_lock);
int v2m_cfg_write(u32 devfn, u32 data)
{
/* Configuration interface broken? */
u32 val;
printk("%s: writing %08x to %08x\n", __func__, data, devfn);
devfn |= SYS_CFG_START | SYS_CFG_WRITE;
spin_lock(&v2m_cfg_lock);
val = readl(MMIO_P2V(V2M_SYS_CFGSTAT));
writel(val & ~SYS_CFG_COMPLETE, MMIO_P2V(V2M_SYS_CFGSTAT));
writel(data, MMIO_P2V(V2M_SYS_CFGDATA));
writel(devfn, MMIO_P2V(V2M_SYS_CFGCTRL));
do {
val = readl(MMIO_P2V(V2M_SYS_CFGSTAT));
} while (val == 0);
spin_unlock(&v2m_cfg_lock);
return !!(val & SYS_CFG_ERR);
}
int v2m_cfg_read(u32 devfn, u32 *data)
{
u32 val;
devfn |= SYS_CFG_START;
spin_lock(&v2m_cfg_lock);
writel(0, MMIO_P2V(V2M_SYS_CFGSTAT));
writel(devfn, MMIO_P2V(V2M_SYS_CFGCTRL));
mb();
do {
cpu_relax();
val = readl(MMIO_P2V(V2M_SYS_CFGSTAT));
} while (val == 0);
*data = readl(MMIO_P2V(V2M_SYS_CFGDATA));
spin_unlock(&v2m_cfg_lock);
return !!(val & SYS_CFG_ERR);
}
static struct resource v2m_pcie_i2c_resource = {
.start = V2M_SERIAL_BUS_PCI,
.end = V2M_SERIAL_BUS_PCI + SZ_4K - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device v2m_pcie_i2c_device = {
.name = "versatile-i2c",
.id = 0,
.num_resources = 1,
.resource = &v2m_pcie_i2c_resource,
};
static struct resource v2m_ddc_i2c_resource = {
.start = V2M_SERIAL_BUS_DVI,
.end = V2M_SERIAL_BUS_DVI + SZ_4K - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device v2m_ddc_i2c_device = {
.name = "versatile-i2c",
.id = 1,
.num_resources = 1,
.resource = &v2m_ddc_i2c_resource,
};
static struct resource v2m_eth_resources[] = {
{
.start = V2M_LAN9118,
.end = V2M_LAN9118 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
}, {
.start = IRQ_V2M_LAN9118,
.end = IRQ_V2M_LAN9118,
.flags = IORESOURCE_IRQ,
},
};
static struct smsc911x_platform_config v2m_eth_config = {
.flags = SMSC911X_USE_32BIT,
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
.phy_interface = PHY_INTERFACE_MODE_MII,
};
static struct platform_device v2m_eth_device = {
.name = "smsc911x",
.id = -1,
.resource = v2m_eth_resources,
.num_resources = ARRAY_SIZE(v2m_eth_resources),
.dev.platform_data = &v2m_eth_config,
};
static struct resource v2m_usb_resources[] = {
{
.start = V2M_ISP1761,
.end = V2M_ISP1761 + SZ_128K - 1,
.flags = IORESOURCE_MEM,
}, {
.start = IRQ_V2M_ISP1761,
.end = IRQ_V2M_ISP1761,
.flags = IORESOURCE_IRQ,
},
};
static struct isp1760_platform_data v2m_usb_config = {
.is_isp1761 = true,
.bus_width_16 = false,
.port1_otg = true,
.analog_oc = false,
.dack_polarity_high = false,
.dreq_polarity_high = false,
};
static struct platform_device v2m_usb_device = {
.name = "isp1760",
.id = -1,
.resource = v2m_usb_resources,
.num_resources = ARRAY_SIZE(v2m_usb_resources),
.dev.platform_data = &v2m_usb_config,
};
static int v2m_flash_init(void)
{
writel(0, MMIO_P2V(V2M_SYS_FLASH));
return 0;
}
static void v2m_flash_exit(void)
{
writel(0, MMIO_P2V(V2M_SYS_FLASH));
}
static void v2m_flash_set_vpp(int on)
{
writel(on != 0, MMIO_P2V(V2M_SYS_FLASH));
}
static struct flash_platform_data v2m_flash_data = {
.map_name = "cfi_probe",
.width = 4,
.init = v2m_flash_init,
.exit = v2m_flash_exit,
.set_vpp = v2m_flash_set_vpp,
};
static struct resource v2m_flash_resources[] = {
{
.start = V2M_NOR0,
.end = V2M_NOR0 + SZ_64M - 1,
.flags = IORESOURCE_MEM,
}, {
.start = V2M_NOR1,
.end = V2M_NOR1 + SZ_64M - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device v2m_flash_device = {
.name = "armflash",
.id = -1,
.resource = v2m_flash_resources,
.num_resources = ARRAY_SIZE(v2m_flash_resources),
.dev.platform_data = &v2m_flash_data,
};
static unsigned int v2m_mmci_status(struct device *dev)
{
return !(readl(MMIO_P2V(V2M_SYS_MCI)) & (1 << 0));
}
static struct mmci_platform_data v2m_mmci_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.status = v2m_mmci_status,
};
static AMBA_DEVICE(aaci, "mb:aaci", V2M_AACI, NULL);
static AMBA_DEVICE(mmci, "mb:mmci", V2M_MMCI, &v2m_mmci_data);
static AMBA_DEVICE(kmi0, "mb:kmi0", V2M_KMI0, NULL);
static AMBA_DEVICE(kmi1, "mb:kmi1", V2M_KMI1, NULL);
static AMBA_DEVICE(uart0, "mb:uart0", V2M_UART0, NULL);
static AMBA_DEVICE(uart1, "mb:uart1", V2M_UART1, NULL);
static AMBA_DEVICE(uart2, "mb:uart2", V2M_UART2, NULL);
static AMBA_DEVICE(uart3, "mb:uart3", V2M_UART3, NULL);
static AMBA_DEVICE(wdt, "mb:wdt", V2M_WDT, NULL);
static AMBA_DEVICE(rtc, "mb:rtc", V2M_RTC, NULL);
static struct amba_device *v2m_amba_devs[] __initdata = {
&aaci_device,
&mmci_device,
&kmi0_device,
&kmi1_device,
&uart0_device,
&uart1_device,
&uart2_device,
&uart3_device,
&wdt_device,
&rtc_device,
};
static long v2m_osc_round(struct clk *clk, unsigned long rate)
{
return rate;
}
static int v2m_osc1_set(struct clk *clk, unsigned long rate)
{
return v2m_cfg_write(SYS_CFG_OSC | SYS_CFG_SITE_MB | 1, rate);
}
static const struct clk_ops osc1_clk_ops = {
.round = v2m_osc_round,
.set = v2m_osc1_set,
};
static struct clk osc1_clk = {
.ops = &osc1_clk_ops,
.rate = 24000000,
};
static struct clk osc2_clk = {
.rate = 24000000,
};
static struct clk dummy_apb_pclk;
static struct clk_lookup v2m_lookups[] = {
{ /* AMBA bus clock */
.con_id = "apb_pclk",
.clk = &dummy_apb_pclk,
}, { /* UART0 */
.dev_id = "mb:uart0",
.clk = &osc2_clk,
}, { /* UART1 */
.dev_id = "mb:uart1",
.clk = &osc2_clk,
}, { /* UART2 */
.dev_id = "mb:uart2",
.clk = &osc2_clk,
}, { /* UART3 */
.dev_id = "mb:uart3",
.clk = &osc2_clk,
}, { /* KMI0 */
.dev_id = "mb:kmi0",
.clk = &osc2_clk,
}, { /* KMI1 */
.dev_id = "mb:kmi1",
.clk = &osc2_clk,
}, { /* MMC0 */
.dev_id = "mb:mmci",
.clk = &osc2_clk,
}, { /* CLCD */
.dev_id = "mb:clcd",
.clk = &osc1_clk,
},
};
static void v2m_power_off(void)
{
if (v2m_cfg_write(SYS_CFG_SHUTDOWN | SYS_CFG_SITE_MB, 0))
printk(KERN_EMERG "Unable to shutdown\n");
}
static void v2m_restart(char str, const char *cmd)
{
if (v2m_cfg_write(SYS_CFG_REBOOT | SYS_CFG_SITE_MB, 0))
printk(KERN_EMERG "Unable to reboot\n");
}
static int __init v2m_init(void)
{
int i;
clkdev_add_table(v2m_lookups, ARRAY_SIZE(v2m_lookups));
platform_device_register(&v2m_pcie_i2c_device);
platform_device_register(&v2m_ddc_i2c_device);
platform_device_register(&v2m_flash_device);
platform_device_register(&v2m_eth_device);
platform_device_register(&v2m_usb_device);
for (i = 0; i < ARRAY_SIZE(v2m_amba_devs); i++)
amba_device_register(v2m_amba_devs[i], &iomem_resource);
pm_power_off = v2m_power_off;
arm_pm_restart = v2m_restart;
return 0;
}
arch_initcall(v2m_init);
