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305 lines
7.1 KiB
305 lines
7.1 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Renesas Technology Sales RTS7751R2D Support. |
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* |
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* Copyright (C) 2002 - 2006 Atom Create Engineering Co., Ltd. |
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* Copyright (C) 2004 - 2007 Paul Mundt |
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*/ |
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#include <linux/init.h> |
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#include <linux/platform_device.h> |
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#include <linux/mtd/mtd.h> |
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#include <linux/mtd/partitions.h> |
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#include <linux/mtd/physmap.h> |
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#include <linux/ata_platform.h> |
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#include <linux/sm501.h> |
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#include <linux/sm501-regs.h> |
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#include <linux/pm.h> |
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#include <linux/fb.h> |
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#include <linux/spi/spi.h> |
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#include <linux/spi/spi_bitbang.h> |
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#include <asm/machvec.h> |
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#include <mach/r2d.h> |
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#include <asm/io.h> |
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#include <asm/io_trapped.h> |
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#include <asm/spi.h> |
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static struct resource cf_ide_resources[] = { |
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[0] = { |
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.start = PA_AREA5_IO + 0x1000, |
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.end = PA_AREA5_IO + 0x1000 + 0x10 - 0x2, |
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.flags = IORESOURCE_MEM, |
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}, |
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[1] = { |
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.start = PA_AREA5_IO + 0x80c, |
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.end = PA_AREA5_IO + 0x80c, |
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.flags = IORESOURCE_MEM, |
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}, |
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#ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */ |
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[2] = { |
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.start = IRQ_CF_IDE, |
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.flags = IORESOURCE_IRQ, |
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}, |
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#endif |
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}; |
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static struct pata_platform_info pata_info = { |
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.ioport_shift = 1, |
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}; |
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static struct platform_device cf_ide_device = { |
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.name = "pata_platform", |
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.id = -1, |
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.num_resources = ARRAY_SIZE(cf_ide_resources), |
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.resource = cf_ide_resources, |
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.dev = { |
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.platform_data = &pata_info, |
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}, |
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}; |
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static struct spi_board_info spi_bus[] = { |
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{ |
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.modalias = "rtc-r9701", |
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.max_speed_hz = 1000000, |
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.mode = SPI_MODE_3, |
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}, |
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}; |
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static void r2d_chip_select(struct sh_spi_info *spi, int cs, int state) |
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{ |
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BUG_ON(cs != 0); /* Single Epson RTC-9701JE attached on CS0 */ |
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__raw_writew(state == BITBANG_CS_ACTIVE, PA_RTCCE); |
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} |
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static struct sh_spi_info spi_info = { |
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.num_chipselect = 1, |
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.chip_select = r2d_chip_select, |
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}; |
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static struct resource spi_sh_sci_resources[] = { |
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{ |
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.start = 0xffe00000, |
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.end = 0xffe0001f, |
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.flags = IORESOURCE_MEM, |
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}, |
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}; |
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static struct platform_device spi_sh_sci_device = { |
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.name = "spi_sh_sci", |
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.id = -1, |
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.num_resources = ARRAY_SIZE(spi_sh_sci_resources), |
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.resource = spi_sh_sci_resources, |
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.dev = { |
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.platform_data = &spi_info, |
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}, |
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}; |
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static struct resource heartbeat_resources[] = { |
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[0] = { |
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.start = PA_OUTPORT, |
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.end = PA_OUTPORT, |
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.flags = IORESOURCE_MEM, |
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}, |
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}; |
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static struct platform_device heartbeat_device = { |
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.name = "heartbeat", |
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.id = -1, |
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.num_resources = ARRAY_SIZE(heartbeat_resources), |
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.resource = heartbeat_resources, |
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}; |
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static struct resource sm501_resources[] = { |
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[0] = { |
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.start = 0x10000000, |
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.end = 0x13e00000 - 1, |
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.flags = IORESOURCE_MEM, |
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}, |
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[1] = { |
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.start = 0x13e00000, |
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.end = 0x13ffffff, |
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.flags = IORESOURCE_MEM, |
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}, |
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[2] = { |
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.start = IRQ_VOYAGER, |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static struct fb_videomode sm501_default_mode = { |
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.pixclock = 35714, |
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.xres = 640, |
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.yres = 480, |
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.left_margin = 105, |
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.right_margin = 50, |
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.upper_margin = 35, |
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.lower_margin = 0, |
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.hsync_len = 96, |
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.vsync_len = 2, |
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
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}; |
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static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = { |
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.def_bpp = 16, |
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.def_mode = &sm501_default_mode, |
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.flags = SM501FB_FLAG_USE_INIT_MODE | |
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SM501FB_FLAG_USE_HWCURSOR | |
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SM501FB_FLAG_USE_HWACCEL | |
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SM501FB_FLAG_DISABLE_AT_EXIT, |
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}; |
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static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = { |
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.flags = (SM501FB_FLAG_USE_INIT_MODE | |
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SM501FB_FLAG_USE_HWCURSOR | |
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SM501FB_FLAG_USE_HWACCEL | |
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SM501FB_FLAG_DISABLE_AT_EXIT), |
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}; |
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static struct sm501_platdata_fb sm501_fb_pdata = { |
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.fb_route = SM501_FB_OWN, |
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.fb_crt = &sm501_pdata_fbsub_crt, |
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.fb_pnl = &sm501_pdata_fbsub_pnl, |
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.flags = SM501_FBPD_SWAP_FB_ENDIAN, |
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}; |
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static struct sm501_initdata sm501_initdata = { |
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.devices = SM501_USE_USB_HOST | SM501_USE_UART0, |
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}; |
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static struct sm501_platdata sm501_platform_data = { |
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.init = &sm501_initdata, |
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.fb = &sm501_fb_pdata, |
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}; |
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static struct platform_device sm501_device = { |
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.name = "sm501", |
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.id = -1, |
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.dev = { |
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.platform_data = &sm501_platform_data, |
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}, |
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.num_resources = ARRAY_SIZE(sm501_resources), |
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.resource = sm501_resources, |
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}; |
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static struct mtd_partition r2d_partitions[] = { |
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{ |
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.name = "U-Boot", |
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.offset = 0x00000000, |
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.size = 0x00040000, |
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.mask_flags = MTD_WRITEABLE, |
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}, { |
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.name = "Environment", |
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.offset = MTDPART_OFS_NXTBLK, |
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.size = 0x00040000, |
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.mask_flags = MTD_WRITEABLE, |
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}, { |
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.name = "Kernel", |
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.offset = MTDPART_OFS_NXTBLK, |
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.size = 0x001c0000, |
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}, { |
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.name = "Flash_FS", |
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.offset = MTDPART_OFS_NXTBLK, |
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.size = MTDPART_SIZ_FULL, |
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} |
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}; |
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static struct physmap_flash_data flash_data = { |
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.width = 2, |
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.nr_parts = ARRAY_SIZE(r2d_partitions), |
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.parts = r2d_partitions, |
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}; |
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static struct resource flash_resource = { |
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.start = 0x00000000, |
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.end = 0x02000000, |
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.flags = IORESOURCE_MEM, |
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}; |
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static struct platform_device flash_device = { |
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.name = "physmap-flash", |
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.id = -1, |
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.resource = &flash_resource, |
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.num_resources = 1, |
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.dev = { |
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.platform_data = &flash_data, |
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}, |
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}; |
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static struct platform_device *rts7751r2d_devices[] __initdata = { |
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&sm501_device, |
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&heartbeat_device, |
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&spi_sh_sci_device, |
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}; |
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/* |
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* The CF is connected with a 16-bit bus where 8-bit operations are |
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* unsupported. The linux ata driver is however using 8-bit operations, so |
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* insert a trapped io filter to convert 8-bit operations into 16-bit. |
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*/ |
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static struct trapped_io cf_trapped_io = { |
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.resource = cf_ide_resources, |
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.num_resources = 2, |
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.minimum_bus_width = 16, |
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}; |
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static int __init rts7751r2d_devices_setup(void) |
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{ |
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if (register_trapped_io(&cf_trapped_io) == 0) |
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platform_device_register(&cf_ide_device); |
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if (mach_is_r2d_plus()) |
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platform_device_register(&flash_device); |
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spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus)); |
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return platform_add_devices(rts7751r2d_devices, |
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ARRAY_SIZE(rts7751r2d_devices)); |
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} |
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device_initcall(rts7751r2d_devices_setup); |
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static void rts7751r2d_power_off(void) |
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{ |
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__raw_writew(0x0001, PA_POWOFF); |
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} |
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/* |
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* Initialize the board |
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*/ |
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static void __init rts7751r2d_setup(char **cmdline_p) |
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{ |
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void __iomem *sm501_reg; |
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u16 ver = __raw_readw(PA_VERREG); |
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printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n"); |
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printk(KERN_INFO "FPGA version:%d (revision:%d)\n", |
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(ver >> 4) & 0xf, ver & 0xf); |
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__raw_writew(0x0000, PA_OUTPORT); |
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pm_power_off = rts7751r2d_power_off; |
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/* sm501 dram configuration: |
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* ColSizeX = 11 - External Memory Column Size: 256 words. |
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* APX = 1 - External Memory Active to Pre-Charge Delay: 7 clocks. |
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* RstX = 1 - External Memory Reset: Normal. |
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* Rfsh = 1 - Local Memory Refresh to Command Delay: 12 clocks. |
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* BwC = 1 - Local Memory Block Write Cycle Time: 2 clocks. |
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* BwP = 1 - Local Memory Block Write to Pre-Charge Delay: 1 clock. |
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* AP = 1 - Internal Memory Active to Pre-Charge Delay: 7 clocks. |
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* Rst = 1 - Internal Memory Reset: Normal. |
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* RA = 1 - Internal Memory Remain in Active State: Do not remain. |
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*/ |
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sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL; |
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writel(readl(sm501_reg) | 0x00f107c0, sm501_reg); |
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} |
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/* |
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* The Machine Vector |
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*/ |
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static struct sh_machine_vector mv_rts7751r2d __initmv = { |
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.mv_name = "RTS7751R2D", |
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.mv_setup = rts7751r2d_setup, |
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.mv_init_irq = init_rts7751r2d_IRQ, |
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.mv_irq_demux = rts7751r2d_irq_demux, |
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};
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