2 * arch/arm/mach-ep93xx/ts72xx.c
3 * Technologic Systems TS72xx SBC support.
5 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or (at
10 * your option) any later version.
13 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
19 #include <linux/mtd/platnand.h>
20 #include <linux/spi/spi.h>
21 #include <linux/spi/flash.h>
22 #include <linux/spi/mmc_spi.h>
23 #include <linux/mmc/host.h>
24 #include <linux/platform_data/spi-ep93xx.h>
26 #include <mach/gpio-ep93xx.h>
27 #include <mach/hardware.h>
28 #include <mach/irqs.h>
30 #include <asm/mach-types.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/arch.h>
37 /*************************************************************************
39 *************************************************************************/
40 static struct map_desc ts72xx_io_desc[] __initdata = {
42 .virtual = (unsigned long)TS72XX_MODEL_VIRT_BASE,
43 .pfn = __phys_to_pfn(TS72XX_MODEL_PHYS_BASE),
44 .length = TS72XX_MODEL_SIZE,
47 .virtual = (unsigned long)TS72XX_OPTIONS_VIRT_BASE,
48 .pfn = __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE),
49 .length = TS72XX_OPTIONS_SIZE,
52 .virtual = (unsigned long)TS72XX_OPTIONS2_VIRT_BASE,
53 .pfn = __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE),
54 .length = TS72XX_OPTIONS2_SIZE,
57 .virtual = (unsigned long)TS72XX_CPLDVER_VIRT_BASE,
58 .pfn = __phys_to_pfn(TS72XX_CPLDVER_PHYS_BASE),
59 .length = TS72XX_CPLDVER_SIZE,
64 static void __init ts72xx_map_io(void)
67 iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc));
71 /*************************************************************************
73 *************************************************************************/
74 #define TS72XX_NAND_CONTROL_ADDR_LINE 22 /* 0xN0400000 */
75 #define TS72XX_NAND_BUSY_ADDR_LINE 23 /* 0xN0800000 */
77 static void ts72xx_nand_hwcontrol(struct nand_chip *chip,
78 int cmd, unsigned int ctrl)
80 if (ctrl & NAND_CTRL_CHANGE) {
81 void __iomem *addr = chip->legacy.IO_ADDR_R;
84 addr += (1 << TS72XX_NAND_CONTROL_ADDR_LINE);
86 bits = __raw_readb(addr) & ~0x07;
87 bits |= (ctrl & NAND_NCE) << 2; /* bit 0 -> bit 2 */
88 bits |= (ctrl & NAND_CLE); /* bit 1 -> bit 1 */
89 bits |= (ctrl & NAND_ALE) >> 2; /* bit 2 -> bit 0 */
91 __raw_writeb(bits, addr);
94 if (cmd != NAND_CMD_NONE)
95 __raw_writeb(cmd, chip->legacy.IO_ADDR_W);
98 static int ts72xx_nand_device_ready(struct nand_chip *chip)
100 void __iomem *addr = chip->legacy.IO_ADDR_R;
102 addr += (1 << TS72XX_NAND_BUSY_ADDR_LINE);
104 return !!(__raw_readb(addr) & 0x20);
107 #define TS72XX_BOOTROM_PART_SIZE (SZ_16K)
108 #define TS72XX_REDBOOT_PART_SIZE (SZ_2M + SZ_1M)
110 static struct mtd_partition ts72xx_nand_parts[] = {
112 .name = "TS-BOOTROM",
114 .size = TS72XX_BOOTROM_PART_SIZE,
115 .mask_flags = MTD_WRITEABLE, /* force read-only */
118 .offset = MTDPART_OFS_RETAIN,
119 .size = TS72XX_REDBOOT_PART_SIZE,
120 /* leave so much for last partition */
123 .offset = MTDPART_OFS_APPEND,
124 .size = MTDPART_SIZ_FULL,
125 .mask_flags = MTD_WRITEABLE, /* force read-only */
129 static struct platform_nand_data ts72xx_nand_data = {
136 .cmd_ctrl = ts72xx_nand_hwcontrol,
137 .dev_ready = ts72xx_nand_device_ready,
141 static struct resource ts72xx_nand_resource[] = {
143 .start = 0, /* filled in later */
144 .end = 0, /* filled in later */
145 .flags = IORESOURCE_MEM,
149 static struct platform_device ts72xx_nand_flash = {
152 .dev.platform_data = &ts72xx_nand_data,
153 .resource = ts72xx_nand_resource,
154 .num_resources = ARRAY_SIZE(ts72xx_nand_resource),
157 void __init ts72xx_register_flash(struct mtd_partition *parts, int n,
158 resource_size_t start)
161 * TS7200 has NOR flash all other TS72xx board have NAND flash.
163 if (board_is_ts7200()) {
164 ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
166 ts72xx_nand_resource[0].start = start;
167 ts72xx_nand_resource[0].end = start + SZ_16M - 1;
169 ts72xx_nand_data.chip.partitions = parts;
170 ts72xx_nand_data.chip.nr_partitions = n;
172 platform_device_register(&ts72xx_nand_flash);
176 /*************************************************************************
178 *************************************************************************/
179 #define TS72XX_RTC_INDEX_PHYS_BASE (EP93XX_CS1_PHYS_BASE + 0x00800000)
180 #define TS72XX_RTC_DATA_PHYS_BASE (EP93XX_CS1_PHYS_BASE + 0x01700000)
182 static struct resource ts72xx_rtc_resources[] = {
183 DEFINE_RES_MEM(TS72XX_RTC_INDEX_PHYS_BASE, 0x01),
184 DEFINE_RES_MEM(TS72XX_RTC_DATA_PHYS_BASE, 0x01),
187 static struct platform_device ts72xx_rtc_device = {
188 .name = "rtc-m48t86",
190 .resource = ts72xx_rtc_resources,
191 .num_resources = ARRAY_SIZE(ts72xx_rtc_resources),
194 /*************************************************************************
196 *************************************************************************/
197 #define TS72XX_WDT_CONTROL_PHYS_BASE (EP93XX_CS2_PHYS_BASE + 0x03800000)
198 #define TS72XX_WDT_FEED_PHYS_BASE (EP93XX_CS2_PHYS_BASE + 0x03c00000)
200 static struct resource ts72xx_wdt_resources[] = {
201 DEFINE_RES_MEM(TS72XX_WDT_CONTROL_PHYS_BASE, 0x01),
202 DEFINE_RES_MEM(TS72XX_WDT_FEED_PHYS_BASE, 0x01),
205 static struct platform_device ts72xx_wdt_device = {
206 .name = "ts72xx-wdt",
208 .resource = ts72xx_wdt_resources,
209 .num_resources = ARRAY_SIZE(ts72xx_wdt_resources),
212 /*************************************************************************
214 *************************************************************************/
215 static struct ep93xx_eth_data __initdata ts72xx_eth_data = {
219 /*************************************************************************
221 *************************************************************************/
222 #define BK3_EN_SDCARD_PHYS_BASE 0x12400000
223 #define BK3_EN_SDCARD_PWR 0x0
224 #define BK3_DIS_SDCARD_PWR 0x0C
225 static void bk3_mmc_spi_setpower(struct device *dev, unsigned int vdd)
227 void __iomem *pwr_sd = ioremap(BK3_EN_SDCARD_PHYS_BASE, SZ_4K);
230 pr_err("Failed to enable SD card power!");
234 pr_debug("%s: SD card pwr %s VDD:0x%x\n", __func__,
235 !!vdd ? "ON" : "OFF", vdd);
238 __raw_writeb(BK3_EN_SDCARD_PWR, pwr_sd);
240 __raw_writeb(BK3_DIS_SDCARD_PWR, pwr_sd);
245 static struct mmc_spi_platform_data bk3_spi_mmc_data = {
247 .powerup_msecs = 100,
248 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
249 .caps = MMC_CAP_NONREMOVABLE,
250 .setpower = bk3_mmc_spi_setpower,
253 /*************************************************************************
254 * SPI Bus - SD card access
255 *************************************************************************/
256 static struct spi_board_info bk3_spi_board_info[] __initdata = {
258 .modalias = "mmc_spi",
259 .platform_data = &bk3_spi_mmc_data,
260 .max_speed_hz = 7.4E6,
268 * This is a stub -> the FGPIO[3] pin is not connected on the schematic
269 * The all work is performed automatically by !SPI_FRAME (SFRM1) and
272 static int bk3_spi_chipselects[] __initdata = {
273 EP93XX_GPIO_LINE_F(3),
276 static struct ep93xx_spi_info bk3_spi_master __initdata = {
277 .chipselect = bk3_spi_chipselects,
278 .num_chipselect = ARRAY_SIZE(bk3_spi_chipselects),
282 /*************************************************************************
283 * TS72XX support code
284 *************************************************************************/
285 #if IS_ENABLED(CONFIG_FPGA_MGR_TS73XX)
287 /* Relative to EP93XX_CS1_PHYS_BASE */
288 #define TS73XX_FPGA_LOADER_BASE 0x03c00000
290 static struct resource ts73xx_fpga_resources[] = {
292 .start = EP93XX_CS1_PHYS_BASE + TS73XX_FPGA_LOADER_BASE,
293 .end = EP93XX_CS1_PHYS_BASE + TS73XX_FPGA_LOADER_BASE + 1,
294 .flags = IORESOURCE_MEM,
298 static struct platform_device ts73xx_fpga_device = {
299 .name = "ts73xx-fpga-mgr",
301 .resource = ts73xx_fpga_resources,
302 .num_resources = ARRAY_SIZE(ts73xx_fpga_resources),
307 /*************************************************************************
309 *************************************************************************/
310 static struct spi_board_info ts72xx_spi_devices[] __initdata = {
312 .modalias = "tmp122",
313 .max_speed_hz = 2 * 1000 * 1000,
319 static int ts72xx_spi_chipselects[] __initdata = {
320 EP93XX_GPIO_LINE_F(2), /* DIO_17 */
323 static struct ep93xx_spi_info ts72xx_spi_info __initdata = {
324 .chipselect = ts72xx_spi_chipselects,
325 .num_chipselect = ARRAY_SIZE(ts72xx_spi_chipselects),
328 static void __init ts72xx_init_machine(void)
330 ep93xx_init_devices();
331 ts72xx_register_flash(ts72xx_nand_parts, ARRAY_SIZE(ts72xx_nand_parts),
332 is_ts9420_installed() ?
333 EP93XX_CS7_PHYS_BASE : EP93XX_CS6_PHYS_BASE);
334 platform_device_register(&ts72xx_rtc_device);
335 platform_device_register(&ts72xx_wdt_device);
337 ep93xx_register_eth(&ts72xx_eth_data, 1);
338 #if IS_ENABLED(CONFIG_FPGA_MGR_TS73XX)
339 if (board_is_ts7300())
340 platform_device_register(&ts73xx_fpga_device);
342 ep93xx_register_spi(&ts72xx_spi_info, ts72xx_spi_devices,
343 ARRAY_SIZE(ts72xx_spi_devices));
346 MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC")
347 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
348 .atag_offset = 0x100,
349 .map_io = ts72xx_map_io,
350 .init_irq = ep93xx_init_irq,
351 .init_time = ep93xx_timer_init,
352 .init_machine = ts72xx_init_machine,
353 .init_late = ep93xx_init_late,
354 .restart = ep93xx_restart,
357 /*************************************************************************
358 * EP93xx I2S audio peripheral handling
359 *************************************************************************/
360 static struct resource ep93xx_i2s_resource[] = {
361 DEFINE_RES_MEM(EP93XX_I2S_PHYS_BASE, 0x100),
362 DEFINE_RES_IRQ_NAMED(IRQ_EP93XX_SAI, "spilink i2s slave"),
365 static struct platform_device ep93xx_i2s_device = {
366 .name = "ep93xx-spilink-i2s",
368 .num_resources = ARRAY_SIZE(ep93xx_i2s_resource),
369 .resource = ep93xx_i2s_resource,
372 /*************************************************************************
374 *************************************************************************/
375 static struct mtd_partition bk3_nand_parts[] = {
378 .offset = 0x00000000,
382 .offset = 0x01e00000,
386 .offset = 0x07d20000,
388 .mask_flags = MTD_WRITEABLE, /* force RO */
392 static void __init bk3_init_machine(void)
394 ep93xx_init_devices();
396 ts72xx_register_flash(bk3_nand_parts, ARRAY_SIZE(bk3_nand_parts),
397 EP93XX_CS6_PHYS_BASE);
399 ep93xx_register_eth(&ts72xx_eth_data, 1);
401 ep93xx_register_spi(&bk3_spi_master, bk3_spi_board_info,
402 ARRAY_SIZE(bk3_spi_board_info));
404 /* Configure ep93xx's I2S to use AC97 pins */
405 ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_I2SONAC97);
406 platform_device_register(&ep93xx_i2s_device);
409 MACHINE_START(BK3, "Liebherr controller BK3.1")
410 /* Maintainer: Lukasz Majewski <lukma@denx.de> */
411 .atag_offset = 0x100,
412 .map_io = ts72xx_map_io,
413 .init_irq = ep93xx_init_irq,
414 .init_time = ep93xx_timer_init,
415 .init_machine = bk3_init_machine,
416 .init_late = ep93xx_init_late,
417 .restart = ep93xx_restart,