diff options
Diffstat (limited to 'kernel/arch/sh/boards/mach-r2d/setup.c')
| -rw-r--r-- | kernel/arch/sh/boards/mach-r2d/setup.c | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/kernel/arch/sh/boards/mach-r2d/setup.c b/kernel/arch/sh/boards/mach-r2d/setup.c new file mode 100644 index 000000000..4b98a5251 --- /dev/null +++ b/kernel/arch/sh/boards/mach-r2d/setup.c @@ -0,0 +1,308 @@ +/* + * 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/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.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 <mach/r2d.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 */ + __raw_writew(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 mtd_partition r2d_partitions[] = { + { + .name = "U-Boot", + .offset = 0x00000000, + .size = 0x00040000, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "Environment", + .offset = MTDPART_OFS_NXTBLK, + .size = 0x00040000, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "Kernel", + .offset = MTDPART_OFS_NXTBLK, + .size = 0x001c0000, + }, { + .name = "Flash_FS", + .offset = MTDPART_OFS_NXTBLK, + .size = MTDPART_SIZ_FULL, + } +}; + +static struct physmap_flash_data flash_data = { + .width = 2, + .nr_parts = ARRAY_SIZE(r2d_partitions), + .parts = r2d_partitions, +}; + +static struct resource flash_resource = { + .start = 0x00000000, + .end = 0x02000000, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device flash_device = { + .name = "physmap-flash", + .id = -1, + .resource = &flash_resource, + .num_resources = 1, + .dev = { + .platform_data = &flash_data, + }, +}; + +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); + + if (mach_is_r2d_plus()) + platform_device_register(&flash_device); + + spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus)); + + return platform_add_devices(rts7751r2d_devices, + ARRAY_SIZE(rts7751r2d_devices)); +} +device_initcall(rts7751r2d_devices_setup); + +static void rts7751r2d_power_off(void) +{ + __raw_writew(0x0001, PA_POWOFF); +} + +/* + * Initialize the board + */ +static void __init rts7751r2d_setup(char **cmdline_p) +{ + void __iomem *sm501_reg; + u16 ver = __raw_readw(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); + + __raw_writew(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, +}; |