2 * r8a7779 processor support
4 * Copyright (C) 2011, 2013 Renesas Solutions Corp.
5 * Copyright (C) 2011 Magnus Damm
6 * Copyright (C) 2013 Cogent Embedded, Inc.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2 of the License.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <linux/kernel.h>
22 #include <linux/init.h>
23 #include <linux/interrupt.h>
24 #include <linux/irq.h>
25 #include <linux/of_platform.h>
26 #include <linux/platform_data/gpio-rcar.h>
27 #include <linux/platform_device.h>
28 #include <linux/delay.h>
29 #include <linux/input.h>
31 #include <linux/serial_sci.h>
32 #include <linux/sh_intc.h>
33 #include <linux/sh_timer.h>
34 #include <linux/dma-mapping.h>
35 #include <linux/usb/otg.h>
36 #include <linux/usb/hcd.h>
37 #include <linux/usb/ehci_pdriver.h>
38 #include <linux/usb/ohci_pdriver.h>
39 #include <linux/pm_runtime.h>
40 #include <mach/hardware.h>
41 #include <mach/irqs.h>
42 #include <mach/r8a7779.h>
43 #include <mach/common.h>
44 #include <asm/mach-types.h>
45 #include <asm/mach/arch.h>
46 #include <asm/mach/time.h>
47 #include <asm/mach/map.h>
48 #include <asm/hardware/cache-l2x0.h>
50 static struct map_desc r8a7779_io_desc[] __initdata = {
51 /* 2M entity map for 0xf0000000 (MPCORE) */
53 .virtual = 0xf0000000,
54 .pfn = __phys_to_pfn(0xf0000000),
56 .type = MT_DEVICE_NONSHARED
58 /* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
60 .virtual = 0xfe000000,
61 .pfn = __phys_to_pfn(0xfe000000),
63 .type = MT_DEVICE_NONSHARED
67 void __init r8a7779_map_io(void)
69 iotable_init(r8a7779_io_desc, ARRAY_SIZE(r8a7779_io_desc));
72 static struct resource r8a7779_pfc_resources[] = {
73 DEFINE_RES_MEM(0xfffc0000, 0x023c),
76 static struct platform_device r8a7779_pfc_device = {
77 .name = "pfc-r8a7779",
79 .resource = r8a7779_pfc_resources,
80 .num_resources = ARRAY_SIZE(r8a7779_pfc_resources),
83 #define R8A7779_GPIO(idx, npins) \
84 static struct resource r8a7779_gpio##idx##_resources[] = { \
85 DEFINE_RES_MEM(0xffc40000 + (0x1000 * (idx)), 0x002c), \
86 DEFINE_RES_IRQ(gic_iid(0xad + (idx))), \
89 static struct gpio_rcar_config r8a7779_gpio##idx##_platform_data = { \
90 .gpio_base = 32 * (idx), \
92 .number_of_pins = npins, \
93 .pctl_name = "pfc-r8a7779", \
96 static struct platform_device r8a7779_gpio##idx##_device = { \
97 .name = "gpio_rcar", \
99 .resource = r8a7779_gpio##idx##_resources, \
100 .num_resources = ARRAY_SIZE(r8a7779_gpio##idx##_resources), \
102 .platform_data = &r8a7779_gpio##idx##_platform_data, \
114 static struct platform_device *r8a7779_pinctrl_devices[] __initdata = {
116 &r8a7779_gpio0_device,
117 &r8a7779_gpio1_device,
118 &r8a7779_gpio2_device,
119 &r8a7779_gpio3_device,
120 &r8a7779_gpio4_device,
121 &r8a7779_gpio5_device,
122 &r8a7779_gpio6_device,
125 void __init r8a7779_pinmux_init(void)
127 platform_add_devices(r8a7779_pinctrl_devices,
128 ARRAY_SIZE(r8a7779_pinctrl_devices));
131 static struct plat_sci_port scif0_platform_data = {
132 .mapbase = 0xffe40000,
133 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
134 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
135 .scbrr_algo_id = SCBRR_ALGO_2,
137 .irqs = SCIx_IRQ_MUXED(gic_iid(0x78)),
140 static struct platform_device scif0_device = {
144 .platform_data = &scif0_platform_data,
148 static struct plat_sci_port scif1_platform_data = {
149 .mapbase = 0xffe41000,
150 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
151 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
152 .scbrr_algo_id = SCBRR_ALGO_2,
154 .irqs = SCIx_IRQ_MUXED(gic_iid(0x79)),
157 static struct platform_device scif1_device = {
161 .platform_data = &scif1_platform_data,
165 static struct plat_sci_port scif2_platform_data = {
166 .mapbase = 0xffe42000,
167 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
168 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
169 .scbrr_algo_id = SCBRR_ALGO_2,
171 .irqs = SCIx_IRQ_MUXED(gic_iid(0x7a)),
174 static struct platform_device scif2_device = {
178 .platform_data = &scif2_platform_data,
182 static struct plat_sci_port scif3_platform_data = {
183 .mapbase = 0xffe43000,
184 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
185 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
186 .scbrr_algo_id = SCBRR_ALGO_2,
188 .irqs = SCIx_IRQ_MUXED(gic_iid(0x7b)),
191 static struct platform_device scif3_device = {
195 .platform_data = &scif3_platform_data,
199 static struct plat_sci_port scif4_platform_data = {
200 .mapbase = 0xffe44000,
201 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
202 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
203 .scbrr_algo_id = SCBRR_ALGO_2,
205 .irqs = SCIx_IRQ_MUXED(gic_iid(0x7c)),
208 static struct platform_device scif4_device = {
212 .platform_data = &scif4_platform_data,
216 static struct plat_sci_port scif5_platform_data = {
217 .mapbase = 0xffe45000,
218 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
219 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
220 .scbrr_algo_id = SCBRR_ALGO_2,
222 .irqs = SCIx_IRQ_MUXED(gic_iid(0x7d)),
225 static struct platform_device scif5_device = {
229 .platform_data = &scif5_platform_data,
234 static struct sh_timer_config tmu00_platform_data = {
236 .channel_offset = 0x4,
238 .clockevent_rating = 200,
241 static struct resource tmu00_resources[] = {
246 .flags = IORESOURCE_MEM,
249 .start = gic_iid(0x40),
250 .flags = IORESOURCE_IRQ,
254 static struct platform_device tmu00_device = {
258 .platform_data = &tmu00_platform_data,
260 .resource = tmu00_resources,
261 .num_resources = ARRAY_SIZE(tmu00_resources),
264 static struct sh_timer_config tmu01_platform_data = {
266 .channel_offset = 0x10,
268 .clocksource_rating = 200,
271 static struct resource tmu01_resources[] = {
276 .flags = IORESOURCE_MEM,
279 .start = gic_iid(0x41),
280 .flags = IORESOURCE_IRQ,
284 static struct platform_device tmu01_device = {
288 .platform_data = &tmu01_platform_data,
290 .resource = tmu01_resources,
291 .num_resources = ARRAY_SIZE(tmu01_resources),
295 static struct resource rcar_i2c0_res[] = {
299 .flags = IORESOURCE_MEM,
301 .start = gic_iid(0x6f),
302 .flags = IORESOURCE_IRQ,
306 static struct platform_device i2c0_device = {
309 .resource = rcar_i2c0_res,
310 .num_resources = ARRAY_SIZE(rcar_i2c0_res),
313 static struct resource rcar_i2c1_res[] = {
317 .flags = IORESOURCE_MEM,
319 .start = gic_iid(0x72),
320 .flags = IORESOURCE_IRQ,
324 static struct platform_device i2c1_device = {
327 .resource = rcar_i2c1_res,
328 .num_resources = ARRAY_SIZE(rcar_i2c1_res),
331 static struct resource rcar_i2c2_res[] = {
335 .flags = IORESOURCE_MEM,
337 .start = gic_iid(0x70),
338 .flags = IORESOURCE_IRQ,
342 static struct platform_device i2c2_device = {
345 .resource = rcar_i2c2_res,
346 .num_resources = ARRAY_SIZE(rcar_i2c2_res),
349 static struct resource rcar_i2c3_res[] = {
353 .flags = IORESOURCE_MEM,
355 .start = gic_iid(0x71),
356 .flags = IORESOURCE_IRQ,
360 static struct platform_device i2c3_device = {
363 .resource = rcar_i2c3_res,
364 .num_resources = ARRAY_SIZE(rcar_i2c3_res),
367 static struct resource sata_resources[] = {
372 .flags = IORESOURCE_MEM,
375 .start = gic_iid(0x84),
376 .flags = IORESOURCE_IRQ,
380 static struct platform_device sata_device = {
383 .resource = sata_resources,
384 .num_resources = ARRAY_SIZE(sata_resources),
386 .dma_mask = &sata_device.dev.coherent_dma_mask,
387 .coherent_dma_mask = DMA_BIT_MASK(32),
392 static struct resource usb_phy_resources[] __initdata = {
395 .end = 0xffe70900 - 1,
396 .flags = IORESOURCE_MEM,
401 static struct usb_phy *phy;
403 static int usb_power_on(struct platform_device *pdev)
408 pm_runtime_enable(&pdev->dev);
409 pm_runtime_get_sync(&pdev->dev);
416 static void usb_power_off(struct platform_device *pdev)
421 usb_phy_shutdown(phy);
423 pm_runtime_put_sync(&pdev->dev);
424 pm_runtime_disable(&pdev->dev);
427 static int ehci_init_internal_buffer(struct usb_hcd *hcd)
430 * Below are recommended values from the datasheet;
431 * see [USB :: Setting of EHCI Internal Buffer].
433 /* EHCI IP internal buffer setting */
434 iowrite32(0x00ff0040, hcd->regs + 0x0094);
435 /* EHCI IP internal buffer enable */
436 iowrite32(0x00000001, hcd->regs + 0x009C);
441 static struct usb_ehci_pdata ehcix_pdata = {
442 .power_on = usb_power_on,
443 .power_off = usb_power_off,
444 .power_suspend = usb_power_off,
445 .pre_setup = ehci_init_internal_buffer,
448 static struct resource ehci0_resources[] = {
451 .end = 0xffe70400 - 1,
452 .flags = IORESOURCE_MEM,
455 .start = gic_iid(0x4c),
456 .flags = IORESOURCE_IRQ,
460 static struct platform_device ehci0_device = {
461 .name = "ehci-platform",
464 .dma_mask = &ehci0_device.dev.coherent_dma_mask,
465 .coherent_dma_mask = 0xffffffff,
466 .platform_data = &ehcix_pdata,
468 .num_resources = ARRAY_SIZE(ehci0_resources),
469 .resource = ehci0_resources,
472 static struct resource ehci1_resources[] = {
475 .end = 0xfff70400 - 1,
476 .flags = IORESOURCE_MEM,
479 .start = gic_iid(0x4d),
480 .flags = IORESOURCE_IRQ,
484 static struct platform_device ehci1_device = {
485 .name = "ehci-platform",
488 .dma_mask = &ehci1_device.dev.coherent_dma_mask,
489 .coherent_dma_mask = 0xffffffff,
490 .platform_data = &ehcix_pdata,
492 .num_resources = ARRAY_SIZE(ehci1_resources),
493 .resource = ehci1_resources,
496 static struct usb_ohci_pdata ohcix_pdata = {
497 .power_on = usb_power_on,
498 .power_off = usb_power_off,
499 .power_suspend = usb_power_off,
502 static struct resource ohci0_resources[] = {
505 .end = 0xffe70800 - 1,
506 .flags = IORESOURCE_MEM,
509 .start = gic_iid(0x4c),
510 .flags = IORESOURCE_IRQ,
514 static struct platform_device ohci0_device = {
515 .name = "ohci-platform",
518 .dma_mask = &ohci0_device.dev.coherent_dma_mask,
519 .coherent_dma_mask = 0xffffffff,
520 .platform_data = &ohcix_pdata,
522 .num_resources = ARRAY_SIZE(ohci0_resources),
523 .resource = ohci0_resources,
526 static struct resource ohci1_resources[] = {
529 .end = 0xfff70800 - 1,
530 .flags = IORESOURCE_MEM,
533 .start = gic_iid(0x4d),
534 .flags = IORESOURCE_IRQ,
538 static struct platform_device ohci1_device = {
539 .name = "ohci-platform",
542 .dma_mask = &ohci1_device.dev.coherent_dma_mask,
543 .coherent_dma_mask = 0xffffffff,
544 .platform_data = &ohcix_pdata,
546 .num_resources = ARRAY_SIZE(ohci1_resources),
547 .resource = ohci1_resources,
551 static struct resource ether_resources[] = {
555 .flags = IORESOURCE_MEM,
557 .start = gic_iid(0xb4),
558 .flags = IORESOURCE_IRQ,
562 static struct platform_device *r8a7779_devices_dt[] __initdata = {
573 static struct platform_device *r8a7779_standard_devices[] __initdata = {
581 void __init r8a7779_add_standard_devices(void)
583 #ifdef CONFIG_CACHE_L2X0
584 /* Early BRESP enable, Shared attribute override enable, 64K*16way */
585 l2x0_init(IOMEM(0xf0100000), 0x40470000, 0x82000fff);
589 r8a7779_init_pm_domains();
591 platform_add_devices(r8a7779_devices_dt,
592 ARRAY_SIZE(r8a7779_devices_dt));
593 platform_add_devices(r8a7779_standard_devices,
594 ARRAY_SIZE(r8a7779_standard_devices));
597 void __init r8a7779_add_ether_device(struct sh_eth_plat_data *pdata)
599 platform_device_register_resndata(&platform_bus, "r8a777x-ether", -1,
601 ARRAY_SIZE(ether_resources),
602 pdata, sizeof(*pdata));
605 void __init r8a7779_add_usb_phy_device(struct rcar_phy_platform_data *pdata)
607 platform_device_register_resndata(&platform_bus, "rcar_usb_phy", -1,
609 ARRAY_SIZE(usb_phy_resources),
610 pdata, sizeof(*pdata));
613 /* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
614 void __init __weak r8a7779_register_twd(void) { }
616 void __init r8a7779_earlytimer_init(void)
618 r8a7779_clock_init();
619 shmobile_earlytimer_init();
620 r8a7779_register_twd();
623 void __init r8a7779_add_early_devices(void)
625 early_platform_add_devices(r8a7779_devices_dt,
626 ARRAY_SIZE(r8a7779_devices_dt));
628 /* Early serial console setup is not included here due to
629 * memory map collisions. The SCIF serial ports in r8a7779
630 * are difficult to entity map 1:1 due to collision with the
631 * virtual memory range used by the coherent DMA code on ARM.
633 * Anyone wanting to debug early can remove UPF_IOREMAP from
634 * the sh-sci serial console platform data, adjust mapbase
635 * to a static M:N virt:phys mapping that needs to be added to
636 * the mappings passed with iotable_init() above.
638 * Then add a call to shmobile_setup_console() from this function.
640 * As a final step pass earlyprint=sh-sci.2,115200 on the kernel
641 * command line in case of the marzen board.
645 static struct platform_device *r8a7779_late_devices[] __initdata = {
652 void __init r8a7779_init_late(void)
655 phy = usb_get_phy(USB_PHY_TYPE_USB2);
657 shmobile_init_late();
658 platform_add_devices(r8a7779_late_devices,
659 ARRAY_SIZE(r8a7779_late_devices));
663 void __init r8a7779_init_delay(void)
665 shmobile_setup_delay(1000, 2, 4); /* Cortex-A9 @ 1000MHz */
668 static const struct of_dev_auxdata r8a7779_auxdata_lookup[] __initconst = {
672 void __init r8a7779_add_standard_devices_dt(void)
674 /* clocks are setup late during boot in the case of DT */
675 r8a7779_clock_init();
677 platform_add_devices(r8a7779_devices_dt,
678 ARRAY_SIZE(r8a7779_devices_dt));
679 of_platform_populate(NULL, of_default_bus_match_table,
680 r8a7779_auxdata_lookup, NULL);
683 static const char *r8a7779_compat_dt[] __initdata = {
688 DT_MACHINE_START(R8A7779_DT, "Generic R8A7779 (Flattened Device Tree)")
689 .map_io = r8a7779_map_io,
690 .init_early = r8a7779_init_delay,
691 .nr_irqs = NR_IRQS_LEGACY,
692 .init_irq = r8a7779_init_irq_dt,
693 .init_machine = r8a7779_add_standard_devices_dt,
694 .init_time = shmobile_timer_init,
695 .init_late = r8a7779_init_late,
696 .dt_compat = r8a7779_compat_dt,
698 #endif /* CONFIG_USE_OF */