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/*
* Renesas Technology Sales RTS7751R2D Support.
*
* Copyright (C) 2002 - 2006 Atom Create Engineering Co., Ltd.
* Copyright (C) 2004 - 2007 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#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 <linux/fb.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_bitbang.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[] = {
[0] = {
.start = PA_AREA5_IO + 0x1000,
.end = PA_AREA5_IO + 0x1000 + 0x10 - 0x2,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PA_AREA5_IO + 0x80c,
.end = PA_AREA5_IO + 0x80c,
.flags = IORESOURCE_MEM,
},
#ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */
[2] = {
.start = IRQ_CF_IDE,
.flags = IORESOURCE_IRQ,
},
#endif
};
static struct pata_platform_info pata_info = {
.ioport_shift = 1,
};
static struct platform_device cf_ide_device = {
.name = "pata_platform",
.id = -1,
.num_resources = ARRAY_SIZE(cf_ide_resources),
.resource = cf_ide_resources,
.dev = {
.platform_data = &pata_info,
},
};
static struct spi_board_info spi_bus[] = {
{
.modalias = "rtc-r9701",
.max_speed_hz = 1000000,
.mode = SPI_MODE_3,
},
};
static void r2d_chip_select(struct sh_spi_info *spi, int cs, int state)
{
BUG_ON(cs != 0); /* Single Epson RTC-9701JE attached on CS0 */
ctrl_outw(state == BITBANG_CS_ACTIVE, PA_RTCCE);
}
static struct sh_spi_info spi_info = {
.num_chipselect = 1,
.chip_select = r2d_chip_select,
};
static struct resource spi_sh_sci_resources[] = {
{
.start = 0xffe00000,
.end = 0xffe0001f,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device spi_sh_sci_device = {
.name = "spi_sh_sci",
.id = -1,
.num_resources = ARRAY_SIZE(spi_sh_sci_resources),
.resource = spi_sh_sci_resources,
.dev = {
.platform_data = &spi_info,
},
};
static struct resource heartbeat_resources[] = {
[0] = {
.start = PA_OUTPORT,
.end = PA_OUTPORT,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device heartbeat_device = {
.name = "heartbeat",
.id = -1,
.num_resources = ARRAY_SIZE(heartbeat_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,
.end = 0x13e00000 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0x13e00000,
.end = 0x13ffffff,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = IRQ_VOYAGER,
.flags = IORESOURCE_IRQ,
},
};
static struct fb_videomode sm501_default_mode = {
.pixclock = 35714,
.xres = 640,
.yres = 480,
.left_margin = 105,
.right_margin = 50,
.upper_margin = 35,
.lower_margin = 0,
.hsync_len = 96,
.vsync_len = 2,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
};
static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = {
.def_bpp = 16,
.def_mode = &sm501_default_mode,
.flags = SM501FB_FLAG_USE_INIT_MODE |
SM501FB_FLAG_USE_HWCURSOR |
SM501FB_FLAG_USE_HWACCEL |
SM501FB_FLAG_DISABLE_AT_EXIT,
};
static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = {
.flags = (SM501FB_FLAG_USE_INIT_MODE |
SM501FB_FLAG_USE_HWCURSOR |
SM501FB_FLAG_USE_HWACCEL |
SM501FB_FLAG_DISABLE_AT_EXIT),
};
static struct sm501_platdata_fb sm501_fb_pdata = {
.fb_route = SM501_FB_OWN,
.fb_crt = &sm501_pdata_fbsub_crt,
.fb_pnl = &sm501_pdata_fbsub_pnl,
.flags = SM501_FBPD_SWAP_FB_ENDIAN,
};
static struct sm501_initdata sm501_initdata = {
.gpio_high = {
.set = 0x00001fe0,
.mask = 0x0,
},
.devices = SM501_USE_USB_HOST,
};
static struct sm501_platdata sm501_platform_data = {
.init = &sm501_initdata,
.fb = &sm501_fb_pdata,
};
static struct platform_device sm501_device = {
.name = "sm501",
.id = -1,
.dev = {
.platform_data = &sm501_platform_data,
},
.num_resources = ARRAY_SIZE(sm501_resources),
.resource = sm501_resources,
};
#endif /* CONFIG_MFD_SM501 */
static struct platform_device *rts7751r2d_devices[] __initdata = {
#ifdef CONFIG_MFD_SM501
&uart_device,
&sm501_device,
#endif
&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));
}
__initcall(rts7751r2d_devices_setup);
static void rts7751r2d_power_off(void)
{
ctrl_outw(0x0001, PA_POWOFF);
}
/*
* Initialize the board
*/
static void __init rts7751r2d_setup(char **cmdline_p)
{
void __iomem *sm501_reg;
u16 ver = ctrl_inw(PA_VERREG);
printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
(ver >> 4) & 0xf, ver & 0xf);
ctrl_outw(0x0000, PA_OUTPORT);
pm_power_off = rts7751r2d_power_off;
/* sm501 dram configuration:
* ColSizeX = 11 - External Memory Column Size: 256 words.
* APX = 1 - External Memory Active to Pre-Charge Delay: 7 clocks.
* RstX = 1 - External Memory Reset: Normal.
* Rfsh = 1 - Local Memory Refresh to Command Delay: 12 clocks.
* BwC = 1 - Local Memory Block Write Cycle Time: 2 clocks.
* BwP = 1 - Local Memory Block Write to Pre-Charge Delay: 1 clock.
* AP = 1 - Internal Memory Active to Pre-Charge Delay: 7 clocks.
* Rst = 1 - Internal Memory Reset: Normal.
* RA = 1 - Internal Memory Remain in Active State: Do not remain.
*/
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);
}
/*
* The Machine Vector
*/
static struct sh_machine_vector mv_rts7751r2d __initmv = {
.mv_name = "RTS7751R2D",
.mv_setup = rts7751r2d_setup,
.mv_init_irq = init_rts7751r2d_IRQ,
.mv_irq_demux = rts7751r2d_irq_demux,
};
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