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>
25 #include <linux/gpio/machine.h>
27 #include <mach/gpio-ep93xx.h>
28 #include <mach/hardware.h>
29 #include <mach/irqs.h>
31 #include <asm/mach-types.h>
32 #include <asm/mach/map.h>
33 #include <asm/mach/arch.h>
38 /*************************************************************************
40 *************************************************************************/
41 static struct map_desc ts72xx_io_desc
[] __initdata
= {
43 .virtual = (unsigned long)TS72XX_MODEL_VIRT_BASE
,
44 .pfn
= __phys_to_pfn(TS72XX_MODEL_PHYS_BASE
),
45 .length
= TS72XX_MODEL_SIZE
,
48 .virtual = (unsigned long)TS72XX_OPTIONS_VIRT_BASE
,
49 .pfn
= __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE
),
50 .length
= TS72XX_OPTIONS_SIZE
,
53 .virtual = (unsigned long)TS72XX_OPTIONS2_VIRT_BASE
,
54 .pfn
= __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE
),
55 .length
= TS72XX_OPTIONS2_SIZE
,
58 .virtual = (unsigned long)TS72XX_CPLDVER_VIRT_BASE
,
59 .pfn
= __phys_to_pfn(TS72XX_CPLDVER_PHYS_BASE
),
60 .length
= TS72XX_CPLDVER_SIZE
,
65 static void __init
ts72xx_map_io(void)
68 iotable_init(ts72xx_io_desc
, ARRAY_SIZE(ts72xx_io_desc
));
72 /*************************************************************************
74 *************************************************************************/
75 #define TS72XX_NAND_CONTROL_ADDR_LINE 22 /* 0xN0400000 */
76 #define TS72XX_NAND_BUSY_ADDR_LINE 23 /* 0xN0800000 */
78 static void ts72xx_nand_hwcontrol(struct nand_chip
*chip
,
79 int cmd
, unsigned int ctrl
)
81 if (ctrl
& NAND_CTRL_CHANGE
) {
82 void __iomem
*addr
= chip
->legacy
.IO_ADDR_R
;
85 addr
+= (1 << TS72XX_NAND_CONTROL_ADDR_LINE
);
87 bits
= __raw_readb(addr
) & ~0x07;
88 bits
|= (ctrl
& NAND_NCE
) << 2; /* bit 0 -> bit 2 */
89 bits
|= (ctrl
& NAND_CLE
); /* bit 1 -> bit 1 */
90 bits
|= (ctrl
& NAND_ALE
) >> 2; /* bit 2 -> bit 0 */
92 __raw_writeb(bits
, addr
);
95 if (cmd
!= NAND_CMD_NONE
)
96 __raw_writeb(cmd
, chip
->legacy
.IO_ADDR_W
);
99 static int ts72xx_nand_device_ready(struct nand_chip
*chip
)
101 void __iomem
*addr
= chip
->legacy
.IO_ADDR_R
;
103 addr
+= (1 << TS72XX_NAND_BUSY_ADDR_LINE
);
105 return !!(__raw_readb(addr
) & 0x20);
108 #define TS72XX_BOOTROM_PART_SIZE (SZ_16K)
109 #define TS72XX_REDBOOT_PART_SIZE (SZ_2M + SZ_1M)
111 static struct mtd_partition ts72xx_nand_parts
[] = {
113 .name
= "TS-BOOTROM",
115 .size
= TS72XX_BOOTROM_PART_SIZE
,
116 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
119 .offset
= MTDPART_OFS_RETAIN
,
120 .size
= TS72XX_REDBOOT_PART_SIZE
,
121 /* leave so much for last partition */
124 .offset
= MTDPART_OFS_APPEND
,
125 .size
= MTDPART_SIZ_FULL
,
126 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
130 static struct platform_nand_data ts72xx_nand_data
= {
137 .cmd_ctrl
= ts72xx_nand_hwcontrol
,
138 .dev_ready
= ts72xx_nand_device_ready
,
142 static struct resource ts72xx_nand_resource
[] = {
144 .start
= 0, /* filled in later */
145 .end
= 0, /* filled in later */
146 .flags
= IORESOURCE_MEM
,
150 static struct platform_device ts72xx_nand_flash
= {
153 .dev
.platform_data
= &ts72xx_nand_data
,
154 .resource
= ts72xx_nand_resource
,
155 .num_resources
= ARRAY_SIZE(ts72xx_nand_resource
),
158 void __init
ts72xx_register_flash(struct mtd_partition
*parts
, int n
,
159 resource_size_t start
)
162 * TS7200 has NOR flash all other TS72xx board have NAND flash.
164 if (board_is_ts7200()) {
165 ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE
, SZ_16M
);
167 ts72xx_nand_resource
[0].start
= start
;
168 ts72xx_nand_resource
[0].end
= start
+ SZ_16M
- 1;
170 ts72xx_nand_data
.chip
.partitions
= parts
;
171 ts72xx_nand_data
.chip
.nr_partitions
= n
;
173 platform_device_register(&ts72xx_nand_flash
);
177 /*************************************************************************
179 *************************************************************************/
180 #define TS72XX_RTC_INDEX_PHYS_BASE (EP93XX_CS1_PHYS_BASE + 0x00800000)
181 #define TS72XX_RTC_DATA_PHYS_BASE (EP93XX_CS1_PHYS_BASE + 0x01700000)
183 static struct resource ts72xx_rtc_resources
[] = {
184 DEFINE_RES_MEM(TS72XX_RTC_INDEX_PHYS_BASE
, 0x01),
185 DEFINE_RES_MEM(TS72XX_RTC_DATA_PHYS_BASE
, 0x01),
188 static struct platform_device ts72xx_rtc_device
= {
189 .name
= "rtc-m48t86",
191 .resource
= ts72xx_rtc_resources
,
192 .num_resources
= ARRAY_SIZE(ts72xx_rtc_resources
),
195 /*************************************************************************
197 *************************************************************************/
198 #define TS72XX_WDT_CONTROL_PHYS_BASE (EP93XX_CS2_PHYS_BASE + 0x03800000)
199 #define TS72XX_WDT_FEED_PHYS_BASE (EP93XX_CS2_PHYS_BASE + 0x03c00000)
201 static struct resource ts72xx_wdt_resources
[] = {
202 DEFINE_RES_MEM(TS72XX_WDT_CONTROL_PHYS_BASE
, 0x01),
203 DEFINE_RES_MEM(TS72XX_WDT_FEED_PHYS_BASE
, 0x01),
206 static struct platform_device ts72xx_wdt_device
= {
207 .name
= "ts72xx-wdt",
209 .resource
= ts72xx_wdt_resources
,
210 .num_resources
= ARRAY_SIZE(ts72xx_wdt_resources
),
213 /*************************************************************************
215 *************************************************************************/
216 static struct ep93xx_eth_data __initdata ts72xx_eth_data
= {
220 /*************************************************************************
222 *************************************************************************/
223 #define BK3_EN_SDCARD_PHYS_BASE 0x12400000
224 #define BK3_EN_SDCARD_PWR 0x0
225 #define BK3_DIS_SDCARD_PWR 0x0C
226 static void bk3_mmc_spi_setpower(struct device
*dev
, unsigned int vdd
)
228 void __iomem
*pwr_sd
= ioremap(BK3_EN_SDCARD_PHYS_BASE
, SZ_4K
);
231 pr_err("Failed to enable SD card power!");
235 pr_debug("%s: SD card pwr %s VDD:0x%x\n", __func__
,
236 !!vdd
? "ON" : "OFF", vdd
);
239 __raw_writeb(BK3_EN_SDCARD_PWR
, pwr_sd
);
241 __raw_writeb(BK3_DIS_SDCARD_PWR
, pwr_sd
);
246 static struct mmc_spi_platform_data bk3_spi_mmc_data
= {
248 .powerup_msecs
= 100,
249 .ocr_mask
= MMC_VDD_32_33
| MMC_VDD_33_34
,
250 .caps
= MMC_CAP_NONREMOVABLE
,
251 .setpower
= bk3_mmc_spi_setpower
,
254 /*************************************************************************
255 * SPI Bus - SD card access
256 *************************************************************************/
257 static struct spi_board_info bk3_spi_board_info
[] __initdata
= {
259 .modalias
= "mmc_spi",
260 .platform_data
= &bk3_spi_mmc_data
,
261 .max_speed_hz
= 7.4E6
,
269 * This is a stub -> the FGPIO[3] pin is not connected on the schematic
270 * The all work is performed automatically by !SPI_FRAME (SFRM1) and
273 static struct gpiod_lookup_table bk3_spi_cs_gpio_table
= {
274 .dev_id
= "ep93xx-spi.0",
276 GPIO_LOOKUP("F", 3, "cs", GPIO_ACTIVE_LOW
),
281 static struct ep93xx_spi_info bk3_spi_master __initdata
= {
285 /*************************************************************************
286 * TS72XX support code
287 *************************************************************************/
288 #if IS_ENABLED(CONFIG_FPGA_MGR_TS73XX)
290 /* Relative to EP93XX_CS1_PHYS_BASE */
291 #define TS73XX_FPGA_LOADER_BASE 0x03c00000
293 static struct resource ts73xx_fpga_resources
[] = {
295 .start
= EP93XX_CS1_PHYS_BASE
+ TS73XX_FPGA_LOADER_BASE
,
296 .end
= EP93XX_CS1_PHYS_BASE
+ TS73XX_FPGA_LOADER_BASE
+ 1,
297 .flags
= IORESOURCE_MEM
,
301 static struct platform_device ts73xx_fpga_device
= {
302 .name
= "ts73xx-fpga-mgr",
304 .resource
= ts73xx_fpga_resources
,
305 .num_resources
= ARRAY_SIZE(ts73xx_fpga_resources
),
310 /*************************************************************************
312 *************************************************************************/
313 static struct spi_board_info ts72xx_spi_devices
[] __initdata
= {
315 .modalias
= "tmp122",
316 .max_speed_hz
= 2 * 1000 * 1000,
322 static struct gpiod_lookup_table ts72xx_spi_cs_gpio_table
= {
323 .dev_id
= "ep93xx-spi.0",
326 GPIO_LOOKUP("F", 2, "cs", GPIO_ACTIVE_LOW
),
331 static struct ep93xx_spi_info ts72xx_spi_info __initdata
= {
332 /* Intentionally left blank */
335 static void __init
ts72xx_init_machine(void)
337 ep93xx_init_devices();
338 ts72xx_register_flash(ts72xx_nand_parts
, ARRAY_SIZE(ts72xx_nand_parts
),
339 is_ts9420_installed() ?
340 EP93XX_CS7_PHYS_BASE
: EP93XX_CS6_PHYS_BASE
);
341 platform_device_register(&ts72xx_rtc_device
);
342 platform_device_register(&ts72xx_wdt_device
);
344 ep93xx_register_eth(&ts72xx_eth_data
, 1);
345 #if IS_ENABLED(CONFIG_FPGA_MGR_TS73XX)
346 if (board_is_ts7300())
347 platform_device_register(&ts73xx_fpga_device
);
349 gpiod_add_lookup_table(&ts72xx_spi_cs_gpio_table
);
350 ep93xx_register_spi(&ts72xx_spi_info
, ts72xx_spi_devices
,
351 ARRAY_SIZE(ts72xx_spi_devices
));
354 MACHINE_START(TS72XX
, "Technologic Systems TS-72xx SBC")
355 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
356 .atag_offset
= 0x100,
357 .map_io
= ts72xx_map_io
,
358 .init_irq
= ep93xx_init_irq
,
359 .init_time
= ep93xx_timer_init
,
360 .init_machine
= ts72xx_init_machine
,
361 .init_late
= ep93xx_init_late
,
362 .restart
= ep93xx_restart
,
365 /*************************************************************************
366 * EP93xx I2S audio peripheral handling
367 *************************************************************************/
368 static struct resource ep93xx_i2s_resource
[] = {
369 DEFINE_RES_MEM(EP93XX_I2S_PHYS_BASE
, 0x100),
370 DEFINE_RES_IRQ_NAMED(IRQ_EP93XX_SAI
, "spilink i2s slave"),
373 static struct platform_device ep93xx_i2s_device
= {
374 .name
= "ep93xx-spilink-i2s",
376 .num_resources
= ARRAY_SIZE(ep93xx_i2s_resource
),
377 .resource
= ep93xx_i2s_resource
,
380 /*************************************************************************
382 *************************************************************************/
383 static struct mtd_partition bk3_nand_parts
[] = {
386 .offset
= 0x00000000,
390 .offset
= 0x01e00000,
394 .offset
= 0x07d20000,
396 .mask_flags
= MTD_WRITEABLE
, /* force RO */
400 static void __init
bk3_init_machine(void)
402 ep93xx_init_devices();
404 ts72xx_register_flash(bk3_nand_parts
, ARRAY_SIZE(bk3_nand_parts
),
405 EP93XX_CS6_PHYS_BASE
);
407 ep93xx_register_eth(&ts72xx_eth_data
, 1);
409 gpiod_add_lookup_table(&bk3_spi_cs_gpio_table
);
410 ep93xx_register_spi(&bk3_spi_master
, bk3_spi_board_info
,
411 ARRAY_SIZE(bk3_spi_board_info
));
413 /* Configure ep93xx's I2S to use AC97 pins */
414 ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_I2SONAC97
);
415 platform_device_register(&ep93xx_i2s_device
);
418 MACHINE_START(BK3
, "Liebherr controller BK3.1")
419 /* Maintainer: Lukasz Majewski <lukma@denx.de> */
420 .atag_offset
= 0x100,
421 .map_io
= ts72xx_map_io
,
422 .init_irq
= ep93xx_init_irq
,
423 .init_time
= ep93xx_timer_init
,
424 .init_machine
= bk3_init_machine
,
425 .init_late
= ep93xx_init_late
,
426 .restart
= ep93xx_restart
,