2 * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
3 * and RBTX49xx patch from CELF patch archive.
5 * 2003-2005 (c) MontaVista Software, Inc.
6 * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file "COPYING" in the main directory of this archive
12 #include <linux/init.h>
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15 #include <linux/interrupt.h>
16 #include <linux/string.h>
17 #include <linux/module.h>
18 #include <linux/clk.h>
19 #include <linux/err.h>
20 #include <linux/gpio.h>
21 #include <linux/platform_device.h>
22 #include <linux/serial_core.h>
23 #include <linux/mtd/physmap.h>
24 #include <linux/leds.h>
25 #include <linux/sysdev.h>
26 #include <linux/slab.h>
27 #include <asm/bootinfo.h>
29 #include <asm/reboot.h>
30 #include <asm/r4kcache.h>
31 #include <asm/sections.h>
32 #include <asm/txx9/generic.h>
33 #include <asm/txx9/pci.h>
34 #include <asm/txx9tmr.h>
35 #include <asm/txx9/ndfmc.h>
36 #include <asm/txx9/dmac.h>
37 #ifdef CONFIG_CPU_TX49XX
38 #include <asm/txx9/tx4938.h>
41 /* EBUSC settings of TX4927, etc. */
42 struct resource txx9_ce_res[8];
43 static char txx9_ce_res_name[8][4]; /* "CEn" */
45 /* pcode, internal register */
46 unsigned int txx9_pcode;
47 char txx9_pcode_str[8];
48 static struct resource txx9_reg_res = {
49 .name = txx9_pcode_str,
50 .flags = IORESOURCE_MEM,
53 txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size)
57 for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) {
58 sprintf(txx9_ce_res_name[i], "CE%d", i);
59 txx9_ce_res[i].flags = IORESOURCE_MEM;
60 txx9_ce_res[i].name = txx9_ce_res_name[i];
64 sprintf(txx9_pcode_str, "TX%x", pcode);
66 txx9_reg_res.start = base & 0xfffffffffULL;
67 txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1);
68 request_resource(&iomem_resource, &txx9_reg_res);
73 unsigned int txx9_master_clock;
74 unsigned int txx9_cpu_clock;
75 unsigned int txx9_gbus_clock;
77 #ifdef CONFIG_CPU_TX39XX
78 /* don't enable by default - see errata */
79 int txx9_ccfg_toeon __initdata;
81 int txx9_ccfg_toeon __initdata = 1;
84 /* Minimum CLK support */
86 struct clk *clk_get(struct device *dev, const char *id)
88 if (!strcmp(id, "spi-baseclk"))
89 return (struct clk *)((unsigned long)txx9_gbus_clock / 2 / 2);
90 if (!strcmp(id, "imbus_clk"))
91 return (struct clk *)((unsigned long)txx9_gbus_clock / 2);
92 return ERR_PTR(-ENOENT);
94 EXPORT_SYMBOL(clk_get);
96 int clk_enable(struct clk *clk)
100 EXPORT_SYMBOL(clk_enable);
102 void clk_disable(struct clk *clk)
105 EXPORT_SYMBOL(clk_disable);
107 unsigned long clk_get_rate(struct clk *clk)
109 return (unsigned long)clk;
111 EXPORT_SYMBOL(clk_get_rate);
113 void clk_put(struct clk *clk)
116 EXPORT_SYMBOL(clk_put);
120 #ifdef CONFIG_GENERIC_GPIO
121 int gpio_to_irq(unsigned gpio)
125 EXPORT_SYMBOL(gpio_to_irq);
127 int irq_to_gpio(unsigned irq)
131 EXPORT_SYMBOL(irq_to_gpio);
134 #define BOARD_VEC(board) extern struct txx9_board_vec board;
135 #include <asm/txx9/boards.h>
138 struct txx9_board_vec *txx9_board_vec __initdata;
139 static char txx9_system_type[32];
141 static struct txx9_board_vec *board_vecs[] __initdata = {
142 #define BOARD_VEC(board) &board,
143 #include <asm/txx9/boards.h>
147 static struct txx9_board_vec *__init find_board_byname(const char *name)
151 /* search board_vecs table */
152 for (i = 0; i < ARRAY_SIZE(board_vecs); i++) {
153 if (strstr(board_vecs[i]->system, name))
154 return board_vecs[i];
159 static void __init prom_init_cmdline(void)
163 int i; /* Always ignore the "-c" at argv[0] */
165 if (fw_arg0 >= CKSEG0 || fw_arg1 < CKSEG0) {
167 * argc is not a valid number, or argv32 is not a valid
174 argv32 = (int *)fw_arg1;
177 arcs_cmdline[0] = '\0';
179 for (i = 1; i < argc; i++) {
180 char *str = (char *)(long)argv32[i];
182 strcat(arcs_cmdline, " ");
183 if (strchr(str, ' ')) {
184 strcat(arcs_cmdline, "\"");
185 strcat(arcs_cmdline, str);
186 strcat(arcs_cmdline, "\"");
188 strcat(arcs_cmdline, str);
192 static int txx9_ic_disable __initdata;
193 static int txx9_dc_disable __initdata;
195 #if defined(CONFIG_CPU_TX49XX)
196 /* flush all cache on very early stage (before 4k_cache_init) */
197 static void __init early_flush_dcache(void)
199 unsigned int conf = read_c0_config();
200 unsigned int dc_size = 1 << (12 + ((conf & CONF_DC) >> 6));
201 unsigned int linesz = 32;
202 unsigned long addr, end;
204 end = INDEX_BASE + dc_size / 4;
206 for (addr = INDEX_BASE; addr < end; addr += linesz) {
207 cache_op(Index_Writeback_Inv_D, addr | 0);
208 cache_op(Index_Writeback_Inv_D, addr | 1);
209 cache_op(Index_Writeback_Inv_D, addr | 2);
210 cache_op(Index_Writeback_Inv_D, addr | 3);
214 static void __init txx9_cache_fixup(void)
218 conf = read_c0_config();
219 /* flush and disable */
220 if (txx9_ic_disable) {
221 conf |= TX49_CONF_IC;
222 write_c0_config(conf);
224 if (txx9_dc_disable) {
225 early_flush_dcache();
226 conf |= TX49_CONF_DC;
227 write_c0_config(conf);
231 conf = read_c0_config();
232 if (!txx9_ic_disable)
233 conf &= ~TX49_CONF_IC;
234 if (!txx9_dc_disable)
235 conf &= ~TX49_CONF_DC;
236 write_c0_config(conf);
238 if (conf & TX49_CONF_IC)
239 pr_info("TX49XX I-Cache disabled.\n");
240 if (conf & TX49_CONF_DC)
241 pr_info("TX49XX D-Cache disabled.\n");
243 #elif defined(CONFIG_CPU_TX39XX)
244 /* flush all cache on very early stage (before tx39_cache_init) */
245 static void __init early_flush_dcache(void)
247 unsigned int conf = read_c0_config();
248 unsigned int dc_size = 1 << (10 + ((conf & TX39_CONF_DCS_MASK) >>
249 TX39_CONF_DCS_SHIFT));
250 unsigned int linesz = 16;
251 unsigned long addr, end;
253 end = INDEX_BASE + dc_size / 2;
255 for (addr = INDEX_BASE; addr < end; addr += linesz) {
256 cache_op(Index_Writeback_Inv_D, addr | 0);
257 cache_op(Index_Writeback_Inv_D, addr | 1);
261 static void __init txx9_cache_fixup(void)
265 conf = read_c0_config();
266 /* flush and disable */
267 if (txx9_ic_disable) {
268 conf &= ~TX39_CONF_ICE;
269 write_c0_config(conf);
271 if (txx9_dc_disable) {
272 early_flush_dcache();
273 conf &= ~TX39_CONF_DCE;
274 write_c0_config(conf);
278 conf = read_c0_config();
279 if (!txx9_ic_disable)
280 conf |= TX39_CONF_ICE;
281 if (!txx9_dc_disable)
282 conf |= TX39_CONF_DCE;
283 write_c0_config(conf);
285 if (!(conf & TX39_CONF_ICE))
286 pr_info("TX39XX I-Cache disabled.\n");
287 if (!(conf & TX39_CONF_DCE))
288 pr_info("TX39XX D-Cache disabled.\n");
291 static inline void txx9_cache_fixup(void)
296 static void __init preprocess_cmdline(void)
298 static char cmdline[COMMAND_LINE_SIZE] __initdata;
301 strcpy(cmdline, arcs_cmdline);
303 arcs_cmdline[0] = '\0';
305 char *str = strsep(&s, " ");
306 if (strncmp(str, "board=", 6) == 0) {
307 txx9_board_vec = find_board_byname(str + 6);
309 } else if (strncmp(str, "masterclk=", 10) == 0) {
311 if (strict_strtoul(str + 10, 10, &val) == 0)
312 txx9_master_clock = val;
314 } else if (strcmp(str, "icdisable") == 0) {
317 } else if (strcmp(str, "dcdisable") == 0) {
320 } else if (strcmp(str, "toeoff") == 0) {
323 } else if (strcmp(str, "toeon") == 0) {
328 strcat(arcs_cmdline, " ");
329 strcat(arcs_cmdline, str);
335 static void __init select_board(void)
339 /* first, determine by "board=" argument in preprocess_cmdline() */
342 /* next, determine by "board" envvar */
343 envstr = prom_getenv("board");
345 txx9_board_vec = find_board_byname(envstr);
350 /* select "default" board */
351 #ifdef CONFIG_CPU_TX39XX
352 txx9_board_vec = &jmr3927_vec;
354 #ifdef CONFIG_CPU_TX49XX
355 switch (TX4938_REV_PCODE()) {
356 #ifdef CONFIG_TOSHIBA_RBTX4927
358 txx9_board_vec = &rbtx4927_vec;
361 txx9_board_vec = &rbtx4937_vec;
364 #ifdef CONFIG_TOSHIBA_RBTX4938
366 txx9_board_vec = &rbtx4938_vec;
369 #ifdef CONFIG_TOSHIBA_RBTX4939
371 txx9_board_vec = &rbtx4939_vec;
378 void __init prom_init(void)
381 preprocess_cmdline();
384 strcpy(txx9_system_type, txx9_board_vec->system);
386 txx9_board_vec->prom_init();
389 void __init prom_free_prom_memory(void)
391 unsigned long saddr = PAGE_SIZE;
392 unsigned long eaddr = __pa_symbol(&_text);
395 free_init_pages("prom memory", saddr, eaddr);
398 const char *get_system_type(void)
400 return txx9_system_type;
403 const char *__init prom_getenv(const char *name)
407 if (fw_arg2 < CKSEG0)
410 str = (const s32 *)fw_arg2;
411 /* YAMON style ("name", "value" pairs) */
412 while (str[0] && str[1]) {
413 if (!strcmp((const char *)(unsigned long)str[0], name))
414 return (const char *)(unsigned long)str[1];
420 static void __noreturn txx9_machine_halt(void)
423 clear_c0_status(ST0_IM);
427 if (cpu_has_counter) {
429 * Clear counter interrupt while it
430 * breaks WAIT instruction even if
439 /* Watchdog support */
440 void __init txx9_wdt_init(unsigned long base)
442 struct resource res = {
444 .end = base + 0x100 - 1,
445 .flags = IORESOURCE_MEM,
447 platform_device_register_simple("txx9wdt", -1, &res, 1);
450 void txx9_wdt_now(unsigned long base)
452 struct txx9_tmr_reg __iomem *tmrptr =
453 ioremap(base, sizeof(struct txx9_tmr_reg));
454 /* disable watch dog timer */
455 __raw_writel(TXx9_TMWTMR_WDIS | TXx9_TMWTMR_TWC, &tmrptr->wtmr);
456 __raw_writel(0, &tmrptr->tcr);
458 __raw_writel(TXx9_TMWTMR_TWIE, &tmrptr->wtmr);
459 __raw_writel(1, &tmrptr->cpra); /* immediate */
460 __raw_writel(TXx9_TMTCR_TCE | TXx9_TMTCR_CCDE | TXx9_TMTCR_TMODE_WDOG,
465 void __init txx9_spi_init(int busid, unsigned long base, int irq)
467 struct resource res[] = {
470 .end = base + 0x20 - 1,
471 .flags = IORESOURCE_MEM,
474 .flags = IORESOURCE_IRQ,
477 platform_device_register_simple("spi_txx9", busid,
478 res, ARRAY_SIZE(res));
481 void __init txx9_ethaddr_init(unsigned int id, unsigned char *ethaddr)
483 struct platform_device *pdev =
484 platform_device_alloc("tc35815-mac", id);
486 platform_device_add_data(pdev, ethaddr, 6) ||
487 platform_device_add(pdev))
488 platform_device_put(pdev);
491 void __init txx9_sio_init(unsigned long baseaddr, int irq,
492 unsigned int line, unsigned int sclk, int nocts)
494 #ifdef CONFIG_SERIAL_TXX9
495 struct uart_port req;
497 memset(&req, 0, sizeof(req));
499 req.iotype = UPIO_MEM;
500 req.membase = ioremap(baseaddr, 0x24);
501 req.mapbase = baseaddr;
504 req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
506 req.flags |= UPF_MAGIC_MULTIPLIER /*USE_SCLK*/;
509 req.uartclk = TXX9_IMCLK;
510 early_serial_txx9_setup(&req);
511 #endif /* CONFIG_SERIAL_TXX9 */
514 #ifdef CONFIG_EARLY_PRINTK
515 static void __init null_prom_putchar(char c)
518 void (*txx9_prom_putchar)(char c) __initdata = null_prom_putchar;
520 void __init prom_putchar(char c)
522 txx9_prom_putchar(c);
525 static void __iomem *early_txx9_sio_port;
527 static void __init early_txx9_sio_putchar(char c)
529 #define TXX9_SICISR 0x0c
530 #define TXX9_SITFIFO 0x1c
531 #define TXX9_SICISR_TXALS 0x00000002
532 while (!(__raw_readl(early_txx9_sio_port + TXX9_SICISR) &
535 __raw_writel(c, early_txx9_sio_port + TXX9_SITFIFO);
538 void __init txx9_sio_putchar_init(unsigned long baseaddr)
540 early_txx9_sio_port = ioremap(baseaddr, 0x24);
541 txx9_prom_putchar = early_txx9_sio_putchar;
543 #endif /* CONFIG_EARLY_PRINTK */
546 void __init plat_mem_setup(void)
548 ioport_resource.start = 0;
549 ioport_resource.end = ~0UL; /* no limit */
550 iomem_resource.start = 0;
551 iomem_resource.end = ~0UL; /* no limit */
553 /* fallback restart/halt routines */
554 _machine_restart = (void (*)(char *))txx9_machine_halt;
555 _machine_halt = txx9_machine_halt;
556 pm_power_off = txx9_machine_halt;
559 pcibios_plat_setup = txx9_pcibios_setup;
561 txx9_board_vec->mem_setup();
564 void __init arch_init_irq(void)
566 txx9_board_vec->irq_setup();
569 void __init plat_time_init(void)
571 #ifdef CONFIG_CPU_TX49XX
572 mips_hpt_frequency = txx9_cpu_clock / 2;
574 txx9_board_vec->time_init();
577 static int __init _txx9_arch_init(void)
579 if (txx9_board_vec->arch_init)
580 txx9_board_vec->arch_init();
583 arch_initcall(_txx9_arch_init);
585 static int __init _txx9_device_init(void)
587 if (txx9_board_vec->device_init)
588 txx9_board_vec->device_init();
591 device_initcall(_txx9_device_init);
593 int (*txx9_irq_dispatch)(int pending);
594 asmlinkage void plat_irq_dispatch(void)
596 int pending = read_c0_status() & read_c0_cause() & ST0_IM;
597 int irq = txx9_irq_dispatch(pending);
599 if (likely(irq >= 0))
602 spurious_interrupt();
605 /* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */
606 #ifdef NEEDS_TXX9_SWIZZLE_ADDR_B
607 static unsigned long __swizzle_addr_none(unsigned long port)
611 unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none;
612 EXPORT_SYMBOL(__swizzle_addr_b);
615 #ifdef NEEDS_TXX9_IOSWABW
616 static u16 ioswabw_default(volatile u16 *a, u16 x)
618 return le16_to_cpu(x);
620 static u16 __mem_ioswabw_default(volatile u16 *a, u16 x)
624 u16 (*ioswabw)(volatile u16 *a, u16 x) = ioswabw_default;
625 EXPORT_SYMBOL(ioswabw);
626 u16 (*__mem_ioswabw)(volatile u16 *a, u16 x) = __mem_ioswabw_default;
627 EXPORT_SYMBOL(__mem_ioswabw);
630 void __init txx9_physmap_flash_init(int no, unsigned long addr,
632 const struct physmap_flash_data *pdata)
634 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
635 struct resource res = {
637 .end = addr + size - 1,
638 .flags = IORESOURCE_MEM,
640 struct platform_device *pdev;
641 #ifdef CONFIG_MTD_PARTITIONS
642 static struct mtd_partition parts[2];
643 struct physmap_flash_data pdata_part;
645 /* If this area contained boot area, make separate partition */
646 if (pdata->nr_parts == 0 && !pdata->parts &&
647 addr < 0x1fc00000 && addr + size > 0x1fc00000 &&
649 parts[0].name = "boot";
650 parts[0].offset = 0x1fc00000 - addr;
651 parts[0].size = addr + size - 0x1fc00000;
652 parts[1].name = "user";
654 parts[1].size = 0x1fc00000 - addr;
656 pdata_part.nr_parts = ARRAY_SIZE(parts);
657 pdata_part.parts = parts;
661 pdev = platform_device_alloc("physmap-flash", no);
663 platform_device_add_resources(pdev, &res, 1) ||
664 platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
665 platform_device_add(pdev))
666 platform_device_put(pdev);
670 void __init txx9_ndfmc_init(unsigned long baseaddr,
671 const struct txx9ndfmc_platform_data *pdata)
673 #if defined(CONFIG_MTD_NAND_TXX9NDFMC) || \
674 defined(CONFIG_MTD_NAND_TXX9NDFMC_MODULE)
675 struct resource res = {
677 .end = baseaddr + 0x1000 - 1,
678 .flags = IORESOURCE_MEM,
680 struct platform_device *pdev = platform_device_alloc("txx9ndfmc", -1);
683 platform_device_add_resources(pdev, &res, 1) ||
684 platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
685 platform_device_add(pdev))
686 platform_device_put(pdev);
690 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
691 static DEFINE_SPINLOCK(txx9_iocled_lock);
693 #define TXX9_IOCLED_MAXLEDS 8
695 struct txx9_iocled_data {
696 struct gpio_chip chip;
698 void __iomem *mmioaddr;
699 struct gpio_led_platform_data pdata;
700 struct gpio_led leds[TXX9_IOCLED_MAXLEDS];
701 char names[TXX9_IOCLED_MAXLEDS][32];
704 static int txx9_iocled_get(struct gpio_chip *chip, unsigned int offset)
706 struct txx9_iocled_data *data =
707 container_of(chip, struct txx9_iocled_data, chip);
708 return data->cur_val & (1 << offset);
711 static void txx9_iocled_set(struct gpio_chip *chip, unsigned int offset,
714 struct txx9_iocled_data *data =
715 container_of(chip, struct txx9_iocled_data, chip);
717 spin_lock_irqsave(&txx9_iocled_lock, flags);
719 data->cur_val |= 1 << offset;
721 data->cur_val &= ~(1 << offset);
722 writeb(data->cur_val, data->mmioaddr);
724 spin_unlock_irqrestore(&txx9_iocled_lock, flags);
727 static int txx9_iocled_dir_in(struct gpio_chip *chip, unsigned int offset)
732 static int txx9_iocled_dir_out(struct gpio_chip *chip, unsigned int offset,
735 txx9_iocled_set(chip, offset, value);
739 void __init txx9_iocled_init(unsigned long baseaddr,
740 int basenum, unsigned int num, int lowactive,
741 const char *color, char **deftriggers)
743 struct txx9_iocled_data *iocled;
744 struct platform_device *pdev;
746 static char *default_triggers[] __initdata = {
754 deftriggers = default_triggers;
755 iocled = kzalloc(sizeof(*iocled), GFP_KERNEL);
758 iocled->mmioaddr = ioremap(baseaddr, 1);
759 if (!iocled->mmioaddr)
761 iocled->chip.get = txx9_iocled_get;
762 iocled->chip.set = txx9_iocled_set;
763 iocled->chip.direction_input = txx9_iocled_dir_in;
764 iocled->chip.direction_output = txx9_iocled_dir_out;
765 iocled->chip.label = "iocled";
766 iocled->chip.base = basenum;
767 iocled->chip.ngpio = num;
768 if (gpiochip_add(&iocled->chip))
771 basenum = iocled->chip.base;
773 pdev = platform_device_alloc("leds-gpio", basenum);
776 iocled->pdata.num_leds = num;
777 iocled->pdata.leds = iocled->leds;
778 for (i = 0; i < num; i++) {
779 struct gpio_led *led = &iocled->leds[i];
780 snprintf(iocled->names[i], sizeof(iocled->names[i]),
781 "iocled:%s:%u", color, i);
782 led->name = iocled->names[i];
783 led->gpio = basenum + i;
784 led->active_low = lowactive;
785 if (deftriggers && *deftriggers)
786 led->default_trigger = *deftriggers++;
788 pdev->dev.platform_data = &iocled->pdata;
789 if (platform_device_add(pdev))
793 platform_device_put(pdev);
795 if (gpiochip_remove(&iocled->chip))
798 iounmap(iocled->mmioaddr);
802 #else /* CONFIG_LEDS_GPIO */
803 void __init txx9_iocled_init(unsigned long baseaddr,
804 int basenum, unsigned int num, int lowactive,
805 const char *color, char **deftriggers)
808 #endif /* CONFIG_LEDS_GPIO */
810 void __init txx9_dmac_init(int id, unsigned long baseaddr, int irq,
811 const struct txx9dmac_platform_data *pdata)
813 #if defined(CONFIG_TXX9_DMAC) || defined(CONFIG_TXX9_DMAC_MODULE)
814 struct resource res[] = {
817 .end = baseaddr + 0x800 - 1,
818 .flags = IORESOURCE_MEM,
819 #ifndef CONFIG_MACH_TX49XX
822 .flags = IORESOURCE_IRQ,
826 #ifdef CONFIG_MACH_TX49XX
827 struct resource chan_res[] = {
829 .flags = IORESOURCE_IRQ,
833 struct platform_device *pdev = platform_device_alloc("txx9dmac", id);
834 struct txx9dmac_chan_platform_data cpdata;
838 platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
839 platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
840 platform_device_add(pdev)) {
841 platform_device_put(pdev);
844 memset(&cpdata, 0, sizeof(cpdata));
845 cpdata.dmac_dev = pdev;
846 for (i = 0; i < TXX9_DMA_MAX_NR_CHANNELS; i++) {
847 #ifdef CONFIG_MACH_TX49XX
848 chan_res[0].start = irq + i;
850 pdev = platform_device_alloc("txx9dmac-chan",
851 id * TXX9_DMA_MAX_NR_CHANNELS + i);
853 #ifdef CONFIG_MACH_TX49XX
854 platform_device_add_resources(pdev, chan_res,
855 ARRAY_SIZE(chan_res)) ||
857 platform_device_add_data(pdev, &cpdata, sizeof(cpdata)) ||
858 platform_device_add(pdev))
859 platform_device_put(pdev);
864 void __init txx9_aclc_init(unsigned long baseaddr, int irq,
865 unsigned int dmac_id,
866 unsigned int dma_chan_out,
867 unsigned int dma_chan_in)
869 #if defined(CONFIG_SND_SOC_TXX9ACLC) || \
870 defined(CONFIG_SND_SOC_TXX9ACLC_MODULE)
871 unsigned int dma_base = dmac_id * TXX9_DMA_MAX_NR_CHANNELS;
872 struct resource res[] = {
875 .end = baseaddr + 0x100 - 1,
876 .flags = IORESOURCE_MEM,
879 .flags = IORESOURCE_IRQ,
881 .name = "txx9dmac-chan",
882 .start = dma_base + dma_chan_out,
883 .flags = IORESOURCE_DMA,
885 .name = "txx9dmac-chan",
886 .start = dma_base + dma_chan_in,
887 .flags = IORESOURCE_DMA,
890 struct platform_device *pdev =
891 platform_device_alloc("txx9aclc-ac97", -1);
894 platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
895 platform_device_add(pdev))
896 platform_device_put(pdev);
900 static struct sysdev_class txx9_sramc_sysdev_class;
902 struct txx9_sramc_sysdev {
903 struct sys_device dev;
904 struct bin_attribute bindata_attr;
908 static ssize_t txx9_sram_read(struct file *filp, struct kobject *kobj,
909 struct bin_attribute *bin_attr,
910 char *buf, loff_t pos, size_t size)
912 struct txx9_sramc_sysdev *dev = bin_attr->private;
913 size_t ramsize = bin_attr->size;
917 if (pos + size > ramsize)
918 size = ramsize - pos;
919 memcpy_fromio(buf, dev->base + pos, size);
923 static ssize_t txx9_sram_write(struct file *filp, struct kobject *kobj,
924 struct bin_attribute *bin_attr,
925 char *buf, loff_t pos, size_t size)
927 struct txx9_sramc_sysdev *dev = bin_attr->private;
928 size_t ramsize = bin_attr->size;
932 if (pos + size > ramsize)
933 size = ramsize - pos;
934 memcpy_toio(dev->base + pos, buf, size);
938 void __init txx9_sramc_init(struct resource *r)
940 struct txx9_sramc_sysdev *dev;
944 if (!txx9_sramc_sysdev_class.name) {
945 txx9_sramc_sysdev_class.name = "txx9_sram";
946 err = sysdev_class_register(&txx9_sramc_sysdev_class);
948 txx9_sramc_sysdev_class.name = NULL;
952 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
955 size = resource_size(r);
956 dev->base = ioremap(r->start, size);
959 dev->dev.cls = &txx9_sramc_sysdev_class;
960 sysfs_bin_attr_init(&dev->bindata_attr);
961 dev->bindata_attr.attr.name = "bindata";
962 dev->bindata_attr.attr.mode = S_IRUSR | S_IWUSR;
963 dev->bindata_attr.read = txx9_sram_read;
964 dev->bindata_attr.write = txx9_sram_write;
965 dev->bindata_attr.size = size;
966 dev->bindata_attr.private = dev;
967 err = sysdev_register(&dev->dev);
970 err = sysfs_create_bin_file(&dev->dev.kobj, &dev->bindata_attr);
972 sysdev_unregister(&dev->dev);