259 lines
6.2 KiB
C
259 lines
6.2 KiB
C
/*
|
|
* 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/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,
|
|
};
|
|
|
|
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 = {
|
|
.devices = SM501_USE_USB_HOST | SM501_USE_UART0,
|
|
};
|
|
|
|
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,
|
|
};
|
|
|
|
static struct platform_device *rts7751r2d_devices[] __initdata = {
|
|
&sm501_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));
|
|
}
|
|
__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);
|
|
}
|
|
|
|
/*
|
|
* 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,
|
|
};
|