#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/ata_platform.h>
-#include <linux/serial_8250.h>
#include <linux/sm501.h>
#include <linux/sm501-regs.h>
#include <linux/pm.h>
#include <asm/machvec.h>
#include <asm/rts7751r2d.h>
#include <asm/io.h>
+#include <asm/io_trapped.h>
#include <asm/spi.h>
static struct resource cf_ide_resources[] = {
.resource = heartbeat_resources,
};
-#ifdef CONFIG_MFD_SM501
-static struct plat_serial8250_port uart_platform_data[] = {
- {
- .membase = (void __iomem *)0xb3e30000,
- .mapbase = 0xb3e30000,
- .iotype = UPIO_MEM,
- .irq = IRQ_VOYAGER,
- .flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ,
- .regshift = 2,
- .uartclk = (9600 * 16),
- },
- { 0 },
-};
-
-static struct platform_device uart_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = uart_platform_data,
- },
-};
-
static struct resource sm501_resources[] = {
[0] = {
.start = 0x10000000,
};
static struct sm501_initdata sm501_initdata = {
- .gpio_high = {
- .set = 0x00001fe0,
- .mask = 0x0,
- },
- .devices = SM501_USE_USB_HOST,
+ .devices = SM501_USE_USB_HOST | SM501_USE_UART0,
};
static struct sm501_platdata sm501_platform_data = {
.resource = sm501_resources,
};
-#endif /* CONFIG_MFD_SM501 */
-
static struct platform_device *rts7751r2d_devices[] __initdata = {
-#ifdef CONFIG_MFD_SM501
- &uart_device,
&sm501_device,
-#endif
- &cf_ide_device,
&heartbeat_device,
&spi_sh_sci_device,
};
+/*
+ * The CF is connected with a 16-bit bus where 8-bit operations are
+ * unsupported. The linux ata driver is however using 8-bit operations, so
+ * insert a trapped io filter to convert 8-bit operations into 16-bit.
+ */
+static struct trapped_io cf_trapped_io = {
+ .resource = cf_ide_resources,
+ .num_resources = 2,
+ .minimum_bus_width = 16,
+};
+
static int __init rts7751r2d_devices_setup(void)
{
+ if (register_trapped_io(&cf_trapped_io) == 0)
+ platform_device_register(&cf_ide_device);
+
spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
+
return platform_add_devices(rts7751r2d_devices,
ARRAY_SIZE(rts7751r2d_devices));
}
ctrl_outw(0x0001, PA_POWOFF);
}
-static inline unsigned char is_ide_ioaddr(unsigned long addr)
-{
- return ((cf_ide_resources[0].start <= addr &&
- addr <= cf_ide_resources[0].end) ||
- (cf_ide_resources[1].start <= addr &&
- addr <= cf_ide_resources[1].end));
-}
-
-void rts7751r2d_writeb(u8 b, void __iomem *addr)
-{
- unsigned long tmp = (unsigned long __force)addr;
-
- if (is_ide_ioaddr(tmp))
- ctrl_outw((u16)b, tmp);
- else
- ctrl_outb(b, tmp);
-}
-
-u8 rts7751r2d_readb(void __iomem *addr)
-{
- unsigned long tmp = (unsigned long __force)addr;
-
- if (is_ide_ioaddr(tmp))
- return ctrl_inw(tmp) & 0xff;
- else
- return ctrl_inb(tmp);
-}
-
/*
* Initialize the board
*/
sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
writel(readl(sm501_reg) | 0x00f107c0, sm501_reg);
-
- /*
- * Power Mode Gate - Enable UART0
- */
-
- sm501_reg = (void __iomem *)0xb3e00000 + SM501_POWER_MODE_0_GATE;
- writel(readl(sm501_reg) | (1 << SM501_GATE_UART0), sm501_reg);
-
- sm501_reg = (void __iomem *)0xb3e00000 + SM501_POWER_MODE_1_GATE;
- writel(readl(sm501_reg) | (1 << SM501_GATE_UART0), sm501_reg);
}
/*
.mv_setup = rts7751r2d_setup,
.mv_init_irq = init_rts7751r2d_IRQ,
.mv_irq_demux = rts7751r2d_irq_demux,
- .mv_writeb = rts7751r2d_writeb,
- .mv_readb = rts7751r2d_readb,
};