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 <asm/bootinfo.h>
28 #include <asm/reboot.h>
29 #include <asm/r4kcache.h>
30 #include <asm/sections.h>
31 #include <asm/txx9/generic.h>
32 #include <asm/txx9/pci.h>
33 #include <asm/txx9tmr.h>
34 #include <asm/txx9/ndfmc.h>
35 #include <asm/txx9/dmac.h>
36 #ifdef CONFIG_CPU_TX49XX
37 #include <asm/txx9/tx4938.h>
40 /* EBUSC settings of TX4927, etc. */
41 struct resource txx9_ce_res[8];
42 static char txx9_ce_res_name[8][4]; /* "CEn" */
44 /* pcode, internal register */
45 unsigned int txx9_pcode;
46 char txx9_pcode_str[8];
47 static struct resource txx9_reg_res = {
48 .name = txx9_pcode_str,
49 .flags = IORESOURCE_MEM,
52 txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size)
56 for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) {
57 sprintf(txx9_ce_res_name[i], "CE%d", i);
58 txx9_ce_res[i].flags = IORESOURCE_MEM;
59 txx9_ce_res[i].name = txx9_ce_res_name[i];
63 sprintf(txx9_pcode_str, "TX%x", pcode);
65 txx9_reg_res.start = base & 0xfffffffffULL;
66 txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1);
67 request_resource(&iomem_resource, &txx9_reg_res);
72 unsigned int txx9_master_clock;
73 unsigned int txx9_cpu_clock;
74 unsigned int txx9_gbus_clock;
76 #ifdef CONFIG_CPU_TX39XX
77 /* don't enable by default - see errata */
78 int txx9_ccfg_toeon __initdata;
80 int txx9_ccfg_toeon __initdata = 1;
83 /* Minimum CLK support */
85 struct clk *clk_get(struct device *dev, const char *id)
87 if (!strcmp(id, "spi-baseclk"))
88 return (struct clk *)((unsigned long)txx9_gbus_clock / 2 / 2);
89 if (!strcmp(id, "imbus_clk"))
90 return (struct clk *)((unsigned long)txx9_gbus_clock / 2);
91 return ERR_PTR(-ENOENT);
93 EXPORT_SYMBOL(clk_get);
95 int clk_enable(struct clk *clk)
99 EXPORT_SYMBOL(clk_enable);
101 void clk_disable(struct clk *clk)
104 EXPORT_SYMBOL(clk_disable);
106 unsigned long clk_get_rate(struct clk *clk)
108 return (unsigned long)clk;
110 EXPORT_SYMBOL(clk_get_rate);
112 void clk_put(struct clk *clk)
115 EXPORT_SYMBOL(clk_put);
119 #ifdef CONFIG_GENERIC_GPIO
120 int gpio_to_irq(unsigned gpio)
124 EXPORT_SYMBOL(gpio_to_irq);
126 int irq_to_gpio(unsigned irq)
130 EXPORT_SYMBOL(irq_to_gpio);
133 #define BOARD_VEC(board) extern struct txx9_board_vec board;
134 #include <asm/txx9/boards.h>
137 struct txx9_board_vec *txx9_board_vec __initdata;
138 static char txx9_system_type[32];
140 static struct txx9_board_vec *board_vecs[] __initdata = {
141 #define BOARD_VEC(board) &board,
142 #include <asm/txx9/boards.h>
146 static struct txx9_board_vec *__init find_board_byname(const char *name)
150 /* search board_vecs table */
151 for (i = 0; i < ARRAY_SIZE(board_vecs); i++) {
152 if (strstr(board_vecs[i]->system, name))
153 return board_vecs[i];
158 static void __init prom_init_cmdline(void)
162 int i; /* Always ignore the "-c" at argv[0] */
164 if (fw_arg0 >= CKSEG0 || fw_arg1 < CKSEG0) {
166 * argc is not a valid number, or argv32 is not a valid
173 argv32 = (int *)fw_arg1;
176 arcs_cmdline[0] = '\0';
178 for (i = 1; i < argc; i++) {
179 char *str = (char *)(long)argv32[i];
181 strcat(arcs_cmdline, " ");
182 if (strchr(str, ' ')) {
183 strcat(arcs_cmdline, "\"");
184 strcat(arcs_cmdline, str);
185 strcat(arcs_cmdline, "\"");
187 strcat(arcs_cmdline, str);
191 static int txx9_ic_disable __initdata;
192 static int txx9_dc_disable __initdata;
194 #if defined(CONFIG_CPU_TX49XX)
195 /* flush all cache on very early stage (before 4k_cache_init) */
196 static void __init early_flush_dcache(void)
198 unsigned int conf = read_c0_config();
199 unsigned int dc_size = 1 << (12 + ((conf & CONF_DC) >> 6));
200 unsigned int linesz = 32;
201 unsigned long addr, end;
203 end = INDEX_BASE + dc_size / 4;
205 for (addr = INDEX_BASE; addr < end; addr += linesz) {
206 cache_op(Index_Writeback_Inv_D, addr | 0);
207 cache_op(Index_Writeback_Inv_D, addr | 1);
208 cache_op(Index_Writeback_Inv_D, addr | 2);
209 cache_op(Index_Writeback_Inv_D, addr | 3);
213 static void __init txx9_cache_fixup(void)
217 conf = read_c0_config();
218 /* flush and disable */
219 if (txx9_ic_disable) {
220 conf |= TX49_CONF_IC;
221 write_c0_config(conf);
223 if (txx9_dc_disable) {
224 early_flush_dcache();
225 conf |= TX49_CONF_DC;
226 write_c0_config(conf);
230 conf = read_c0_config();
231 if (!txx9_ic_disable)
232 conf &= ~TX49_CONF_IC;
233 if (!txx9_dc_disable)
234 conf &= ~TX49_CONF_DC;
235 write_c0_config(conf);
237 if (conf & TX49_CONF_IC)
238 pr_info("TX49XX I-Cache disabled.\n");
239 if (conf & TX49_CONF_DC)
240 pr_info("TX49XX D-Cache disabled.\n");
242 #elif defined(CONFIG_CPU_TX39XX)
243 /* flush all cache on very early stage (before tx39_cache_init) */
244 static void __init early_flush_dcache(void)
246 unsigned int conf = read_c0_config();
247 unsigned int dc_size = 1 << (10 + ((conf & TX39_CONF_DCS_MASK) >>
248 TX39_CONF_DCS_SHIFT));
249 unsigned int linesz = 16;
250 unsigned long addr, end;
252 end = INDEX_BASE + dc_size / 2;
254 for (addr = INDEX_BASE; addr < end; addr += linesz) {
255 cache_op(Index_Writeback_Inv_D, addr | 0);
256 cache_op(Index_Writeback_Inv_D, addr | 1);
260 static void __init txx9_cache_fixup(void)
264 conf = read_c0_config();
265 /* flush and disable */
266 if (txx9_ic_disable) {
267 conf &= ~TX39_CONF_ICE;
268 write_c0_config(conf);
270 if (txx9_dc_disable) {
271 early_flush_dcache();
272 conf &= ~TX39_CONF_DCE;
273 write_c0_config(conf);
277 conf = read_c0_config();
278 if (!txx9_ic_disable)
279 conf |= TX39_CONF_ICE;
280 if (!txx9_dc_disable)
281 conf |= TX39_CONF_DCE;
282 write_c0_config(conf);
284 if (!(conf & TX39_CONF_ICE))
285 pr_info("TX39XX I-Cache disabled.\n");
286 if (!(conf & TX39_CONF_DCE))
287 pr_info("TX39XX D-Cache disabled.\n");
290 static inline void txx9_cache_fixup(void)
295 static void __init preprocess_cmdline(void)
297 static char cmdline[COMMAND_LINE_SIZE] __initdata;
300 strcpy(cmdline, arcs_cmdline);
302 arcs_cmdline[0] = '\0';
304 char *str = strsep(&s, " ");
305 if (strncmp(str, "board=", 6) == 0) {
306 txx9_board_vec = find_board_byname(str + 6);
308 } else if (strncmp(str, "masterclk=", 10) == 0) {
310 if (strict_strtoul(str + 10, 10, &val) == 0)
311 txx9_master_clock = val;
313 } else if (strcmp(str, "icdisable") == 0) {
316 } else if (strcmp(str, "dcdisable") == 0) {
319 } else if (strcmp(str, "toeoff") == 0) {
322 } else if (strcmp(str, "toeon") == 0) {
327 strcat(arcs_cmdline, " ");
328 strcat(arcs_cmdline, str);
334 static void __init select_board(void)
338 /* first, determine by "board=" argument in preprocess_cmdline() */
341 /* next, determine by "board" envvar */
342 envstr = prom_getenv("board");
344 txx9_board_vec = find_board_byname(envstr);
349 /* select "default" board */
350 #ifdef CONFIG_CPU_TX39XX
351 txx9_board_vec = &jmr3927_vec;
353 #ifdef CONFIG_CPU_TX49XX
354 switch (TX4938_REV_PCODE()) {
355 #ifdef CONFIG_TOSHIBA_RBTX4927
357 txx9_board_vec = &rbtx4927_vec;
360 txx9_board_vec = &rbtx4937_vec;
363 #ifdef CONFIG_TOSHIBA_RBTX4938
365 txx9_board_vec = &rbtx4938_vec;
368 #ifdef CONFIG_TOSHIBA_RBTX4939
370 txx9_board_vec = &rbtx4939_vec;
377 void __init prom_init(void)
380 preprocess_cmdline();
383 strcpy(txx9_system_type, txx9_board_vec->system);
385 txx9_board_vec->prom_init();
388 void __init prom_free_prom_memory(void)
390 unsigned long saddr = PAGE_SIZE;
391 unsigned long eaddr = __pa_symbol(&_text);
394 free_init_pages("prom memory", saddr, eaddr);
397 const char *get_system_type(void)
399 return txx9_system_type;
402 const char *__init prom_getenv(const char *name)
406 if (fw_arg2 < CKSEG0)
409 str = (const s32 *)fw_arg2;
410 /* YAMON style ("name", "value" pairs) */
411 while (str[0] && str[1]) {
412 if (!strcmp((const char *)(unsigned long)str[0], name))
413 return (const char *)(unsigned long)str[1];
419 static void __noreturn txx9_machine_halt(void)
422 clear_c0_status(ST0_IM);
426 if (cpu_has_counter) {
428 * Clear counter interrupt while it
429 * breaks WAIT instruction even if
438 /* Watchdog support */
439 void __init txx9_wdt_init(unsigned long base)
441 struct resource res = {
443 .end = base + 0x100 - 1,
444 .flags = IORESOURCE_MEM,
446 platform_device_register_simple("txx9wdt", -1, &res, 1);
449 void txx9_wdt_now(unsigned long base)
451 struct txx9_tmr_reg __iomem *tmrptr =
452 ioremap(base, sizeof(struct txx9_tmr_reg));
453 /* disable watch dog timer */
454 __raw_writel(TXx9_TMWTMR_WDIS | TXx9_TMWTMR_TWC, &tmrptr->wtmr);
455 __raw_writel(0, &tmrptr->tcr);
457 __raw_writel(TXx9_TMWTMR_TWIE, &tmrptr->wtmr);
458 __raw_writel(1, &tmrptr->cpra); /* immediate */
459 __raw_writel(TXx9_TMTCR_TCE | TXx9_TMTCR_CCDE | TXx9_TMTCR_TMODE_WDOG,
464 void __init txx9_spi_init(int busid, unsigned long base, int irq)
466 struct resource res[] = {
469 .end = base + 0x20 - 1,
470 .flags = IORESOURCE_MEM,
473 .flags = IORESOURCE_IRQ,
476 platform_device_register_simple("spi_txx9", busid,
477 res, ARRAY_SIZE(res));
480 void __init txx9_ethaddr_init(unsigned int id, unsigned char *ethaddr)
482 struct platform_device *pdev =
483 platform_device_alloc("tc35815-mac", id);
485 platform_device_add_data(pdev, ethaddr, 6) ||
486 platform_device_add(pdev))
487 platform_device_put(pdev);
490 void __init txx9_sio_init(unsigned long baseaddr, int irq,
491 unsigned int line, unsigned int sclk, int nocts)
493 #ifdef CONFIG_SERIAL_TXX9
494 struct uart_port req;
496 memset(&req, 0, sizeof(req));
498 req.iotype = UPIO_MEM;
499 req.membase = ioremap(baseaddr, 0x24);
500 req.mapbase = baseaddr;
503 req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
505 req.flags |= UPF_MAGIC_MULTIPLIER /*USE_SCLK*/;
508 req.uartclk = TXX9_IMCLK;
509 early_serial_txx9_setup(&req);
510 #endif /* CONFIG_SERIAL_TXX9 */
513 #ifdef CONFIG_EARLY_PRINTK
514 static void __init null_prom_putchar(char c)
517 void (*txx9_prom_putchar)(char c) __initdata = null_prom_putchar;
519 void __init prom_putchar(char c)
521 txx9_prom_putchar(c);
524 static void __iomem *early_txx9_sio_port;
526 static void __init early_txx9_sio_putchar(char c)
528 #define TXX9_SICISR 0x0c
529 #define TXX9_SITFIFO 0x1c
530 #define TXX9_SICISR_TXALS 0x00000002
531 while (!(__raw_readl(early_txx9_sio_port + TXX9_SICISR) &
534 __raw_writel(c, early_txx9_sio_port + TXX9_SITFIFO);
537 void __init txx9_sio_putchar_init(unsigned long baseaddr)
539 early_txx9_sio_port = ioremap(baseaddr, 0x24);
540 txx9_prom_putchar = early_txx9_sio_putchar;
542 #endif /* CONFIG_EARLY_PRINTK */
545 void __init plat_mem_setup(void)
547 ioport_resource.start = 0;
548 ioport_resource.end = ~0UL; /* no limit */
549 iomem_resource.start = 0;
550 iomem_resource.end = ~0UL; /* no limit */
552 /* fallback restart/halt routines */
553 _machine_restart = (void (*)(char *))txx9_machine_halt;
554 _machine_halt = txx9_machine_halt;
555 pm_power_off = txx9_machine_halt;
558 pcibios_plat_setup = txx9_pcibios_setup;
560 txx9_board_vec->mem_setup();
563 void __init arch_init_irq(void)
565 txx9_board_vec->irq_setup();
568 void __init plat_time_init(void)
570 #ifdef CONFIG_CPU_TX49XX
571 mips_hpt_frequency = txx9_cpu_clock / 2;
573 txx9_board_vec->time_init();
576 static int __init _txx9_arch_init(void)
578 if (txx9_board_vec->arch_init)
579 txx9_board_vec->arch_init();
582 arch_initcall(_txx9_arch_init);
584 static int __init _txx9_device_init(void)
586 if (txx9_board_vec->device_init)
587 txx9_board_vec->device_init();
590 device_initcall(_txx9_device_init);
592 int (*txx9_irq_dispatch)(int pending);
593 asmlinkage void plat_irq_dispatch(void)
595 int pending = read_c0_status() & read_c0_cause() & ST0_IM;
596 int irq = txx9_irq_dispatch(pending);
598 if (likely(irq >= 0))
601 spurious_interrupt();
604 /* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */
605 #ifdef NEEDS_TXX9_SWIZZLE_ADDR_B
606 static unsigned long __swizzle_addr_none(unsigned long port)
610 unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none;
611 EXPORT_SYMBOL(__swizzle_addr_b);
614 #ifdef NEEDS_TXX9_IOSWABW
615 static u16 ioswabw_default(volatile u16 *a, u16 x)
617 return le16_to_cpu(x);
619 static u16 __mem_ioswabw_default(volatile u16 *a, u16 x)
623 u16 (*ioswabw)(volatile u16 *a, u16 x) = ioswabw_default;
624 EXPORT_SYMBOL(ioswabw);
625 u16 (*__mem_ioswabw)(volatile u16 *a, u16 x) = __mem_ioswabw_default;
626 EXPORT_SYMBOL(__mem_ioswabw);
629 void __init txx9_physmap_flash_init(int no, unsigned long addr,
631 const struct physmap_flash_data *pdata)
633 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
634 struct resource res = {
636 .end = addr + size - 1,
637 .flags = IORESOURCE_MEM,
639 struct platform_device *pdev;
640 #ifdef CONFIG_MTD_PARTITIONS
641 static struct mtd_partition parts[2];
642 struct physmap_flash_data pdata_part;
644 /* If this area contained boot area, make separate partition */
645 if (pdata->nr_parts == 0 && !pdata->parts &&
646 addr < 0x1fc00000 && addr + size > 0x1fc00000 &&
648 parts[0].name = "boot";
649 parts[0].offset = 0x1fc00000 - addr;
650 parts[0].size = addr + size - 0x1fc00000;
651 parts[1].name = "user";
653 parts[1].size = 0x1fc00000 - addr;
655 pdata_part.nr_parts = ARRAY_SIZE(parts);
656 pdata_part.parts = parts;
660 pdev = platform_device_alloc("physmap-flash", no);
662 platform_device_add_resources(pdev, &res, 1) ||
663 platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
664 platform_device_add(pdev))
665 platform_device_put(pdev);
669 void __init txx9_ndfmc_init(unsigned long baseaddr,
670 const struct txx9ndfmc_platform_data *pdata)
672 #if defined(CONFIG_MTD_NAND_TXX9NDFMC) || \
673 defined(CONFIG_MTD_NAND_TXX9NDFMC_MODULE)
674 struct resource res = {
676 .end = baseaddr + 0x1000 - 1,
677 .flags = IORESOURCE_MEM,
679 struct platform_device *pdev = platform_device_alloc("txx9ndfmc", -1);
682 platform_device_add_resources(pdev, &res, 1) ||
683 platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
684 platform_device_add(pdev))
685 platform_device_put(pdev);
689 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
690 static DEFINE_SPINLOCK(txx9_iocled_lock);
692 #define TXX9_IOCLED_MAXLEDS 8
694 struct txx9_iocled_data {
695 struct gpio_chip chip;
697 void __iomem *mmioaddr;
698 struct gpio_led_platform_data pdata;
699 struct gpio_led leds[TXX9_IOCLED_MAXLEDS];
700 char names[TXX9_IOCLED_MAXLEDS][32];
703 static int txx9_iocled_get(struct gpio_chip *chip, unsigned int offset)
705 struct txx9_iocled_data *data =
706 container_of(chip, struct txx9_iocled_data, chip);
707 return data->cur_val & (1 << offset);
710 static void txx9_iocled_set(struct gpio_chip *chip, unsigned int offset,
713 struct txx9_iocled_data *data =
714 container_of(chip, struct txx9_iocled_data, chip);
716 spin_lock_irqsave(&txx9_iocled_lock, flags);
718 data->cur_val |= 1 << offset;
720 data->cur_val &= ~(1 << offset);
721 writeb(data->cur_val, data->mmioaddr);
723 spin_unlock_irqrestore(&txx9_iocled_lock, flags);
726 static int txx9_iocled_dir_in(struct gpio_chip *chip, unsigned int offset)
731 static int txx9_iocled_dir_out(struct gpio_chip *chip, unsigned int offset,
734 txx9_iocled_set(chip, offset, value);
738 void __init txx9_iocled_init(unsigned long baseaddr,
739 int basenum, unsigned int num, int lowactive,
740 const char *color, char **deftriggers)
742 struct txx9_iocled_data *iocled;
743 struct platform_device *pdev;
745 static char *default_triggers[] __initdata = {
753 deftriggers = default_triggers;
754 iocled = kzalloc(sizeof(*iocled), GFP_KERNEL);
757 iocled->mmioaddr = ioremap(baseaddr, 1);
758 if (!iocled->mmioaddr)
760 iocled->chip.get = txx9_iocled_get;
761 iocled->chip.set = txx9_iocled_set;
762 iocled->chip.direction_input = txx9_iocled_dir_in;
763 iocled->chip.direction_output = txx9_iocled_dir_out;
764 iocled->chip.label = "iocled";
765 iocled->chip.base = basenum;
766 iocled->chip.ngpio = num;
767 if (gpiochip_add(&iocled->chip))
770 basenum = iocled->chip.base;
772 pdev = platform_device_alloc("leds-gpio", basenum);
775 iocled->pdata.num_leds = num;
776 iocled->pdata.leds = iocled->leds;
777 for (i = 0; i < num; i++) {
778 struct gpio_led *led = &iocled->leds[i];
779 snprintf(iocled->names[i], sizeof(iocled->names[i]),
780 "iocled:%s:%u", color, i);
781 led->name = iocled->names[i];
782 led->gpio = basenum + i;
783 led->active_low = lowactive;
784 if (deftriggers && *deftriggers)
785 led->default_trigger = *deftriggers++;
787 pdev->dev.platform_data = &iocled->pdata;
788 if (platform_device_add(pdev))
792 platform_device_put(pdev);
794 if (gpiochip_remove(&iocled->chip))
797 iounmap(iocled->mmioaddr);
801 #else /* CONFIG_LEDS_GPIO */
802 void __init txx9_iocled_init(unsigned long baseaddr,
803 int basenum, unsigned int num, int lowactive,
804 const char *color, char **deftriggers)
807 #endif /* CONFIG_LEDS_GPIO */
809 void __init txx9_dmac_init(int id, unsigned long baseaddr, int irq,
810 const struct txx9dmac_platform_data *pdata)
812 #if defined(CONFIG_TXX9_DMAC) || defined(CONFIG_TXX9_DMAC_MODULE)
813 struct resource res[] = {
816 .end = baseaddr + 0x800 - 1,
817 .flags = IORESOURCE_MEM,
818 #ifndef CONFIG_MACH_TX49XX
821 .flags = IORESOURCE_IRQ,
825 #ifdef CONFIG_MACH_TX49XX
826 struct resource chan_res[] = {
828 .flags = IORESOURCE_IRQ,
832 struct platform_device *pdev = platform_device_alloc("txx9dmac", id);
833 struct txx9dmac_chan_platform_data cpdata;
837 platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
838 platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
839 platform_device_add(pdev)) {
840 platform_device_put(pdev);
843 memset(&cpdata, 0, sizeof(cpdata));
844 cpdata.dmac_dev = pdev;
845 for (i = 0; i < TXX9_DMA_MAX_NR_CHANNELS; i++) {
846 #ifdef CONFIG_MACH_TX49XX
847 chan_res[0].start = irq + i;
849 pdev = platform_device_alloc("txx9dmac-chan",
850 id * TXX9_DMA_MAX_NR_CHANNELS + i);
852 #ifdef CONFIG_MACH_TX49XX
853 platform_device_add_resources(pdev, chan_res,
854 ARRAY_SIZE(chan_res)) ||
856 platform_device_add_data(pdev, &cpdata, sizeof(cpdata)) ||
857 platform_device_add(pdev))
858 platform_device_put(pdev);
863 void __init txx9_aclc_init(unsigned long baseaddr, int irq,
864 unsigned int dmac_id,
865 unsigned int dma_chan_out,
866 unsigned int dma_chan_in)
868 #if defined(CONFIG_SND_SOC_TXX9ACLC) || \
869 defined(CONFIG_SND_SOC_TXX9ACLC_MODULE)
870 unsigned int dma_base = dmac_id * TXX9_DMA_MAX_NR_CHANNELS;
871 struct resource res[] = {
874 .end = baseaddr + 0x100 - 1,
875 .flags = IORESOURCE_MEM,
878 .flags = IORESOURCE_IRQ,
880 .name = "txx9dmac-chan",
881 .start = dma_base + dma_chan_out,
882 .flags = IORESOURCE_DMA,
884 .name = "txx9dmac-chan",
885 .start = dma_base + dma_chan_in,
886 .flags = IORESOURCE_DMA,
889 struct platform_device *pdev =
890 platform_device_alloc("txx9aclc-ac97", -1);
893 platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
894 platform_device_add(pdev))
895 platform_device_put(pdev);
899 static struct sysdev_class txx9_sramc_sysdev_class;
901 struct txx9_sramc_sysdev {
902 struct sys_device dev;
903 struct bin_attribute bindata_attr;
907 static ssize_t txx9_sram_read(struct kobject *kobj,
908 struct bin_attribute *bin_attr,
909 char *buf, loff_t pos, size_t size)
911 struct txx9_sramc_sysdev *dev = bin_attr->private;
912 size_t ramsize = bin_attr->size;
916 if (pos + size > ramsize)
917 size = ramsize - pos;
918 memcpy_fromio(buf, dev->base + pos, size);
922 static ssize_t txx9_sram_write(struct kobject *kobj,
923 struct bin_attribute *bin_attr,
924 char *buf, loff_t pos, size_t size)
926 struct txx9_sramc_sysdev *dev = bin_attr->private;
927 size_t ramsize = bin_attr->size;
931 if (pos + size > ramsize)
932 size = ramsize - pos;
933 memcpy_toio(dev->base + pos, buf, size);
937 void __init txx9_sramc_init(struct resource *r)
939 struct txx9_sramc_sysdev *dev;
943 if (!txx9_sramc_sysdev_class.name) {
944 txx9_sramc_sysdev_class.name = "txx9_sram";
945 err = sysdev_class_register(&txx9_sramc_sysdev_class);
947 txx9_sramc_sysdev_class.name = NULL;
951 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
954 size = resource_size(r);
955 dev->base = ioremap(r->start, size);
958 dev->dev.cls = &txx9_sramc_sysdev_class;
959 sysfs_bin_attr_init(&dev->bindata_attr);
960 dev->bindata_attr.attr.name = "bindata";
961 dev->bindata_attr.attr.mode = S_IRUSR | S_IWUSR;
962 dev->bindata_attr.read = txx9_sram_read;
963 dev->bindata_attr.write = txx9_sram_write;
964 dev->bindata_attr.size = size;
965 dev->bindata_attr.private = dev;
966 err = sysdev_register(&dev->dev);
969 err = sysfs_create_bin_file(&dev->dev.kobj, &dev->bindata_attr);
971 sysdev_unregister(&dev->dev);