| /* |
| * r8a7778 processor support |
| * |
| * Copyright (C) 2013 Renesas Solutions Corp. |
| * Copyright (C) 2013 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
| * Copyright (C) 2013 Cogent Embedded, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/io.h> |
| #include <linux/irqchip/arm-gic.h> |
| #include <linux/of.h> |
| #include <linux/of_platform.h> |
| #include <linux/platform_data/gpio-rcar.h> |
| #include <linux/platform_data/irq-renesas-intc-irqpin.h> |
| #include <linux/platform_device.h> |
| #include <linux/irqchip.h> |
| #include <linux/serial_sci.h> |
| #include <linux/sh_timer.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/usb/phy.h> |
| #include <linux/usb/hcd.h> |
| #include <linux/usb/ehci_pdriver.h> |
| #include <linux/usb/ohci_pdriver.h> |
| #include <linux/dma-mapping.h> |
| #include <mach/irqs.h> |
| #include <mach/r8a7778.h> |
| #include <mach/common.h> |
| #include <asm/mach/arch.h> |
| #include <asm/hardware/cache-l2x0.h> |
| |
| /* SCIF */ |
| #define SCIF_INFO(baseaddr, irq) \ |
| { \ |
| .mapbase = baseaddr, \ |
| .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \ |
| .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, \ |
| .scbrr_algo_id = SCBRR_ALGO_2, \ |
| .type = PORT_SCIF, \ |
| .irqs = SCIx_IRQ_MUXED(irq), \ |
| } |
| |
| static struct plat_sci_port scif_platform_data[] __initdata = { |
| SCIF_INFO(0xffe40000, gic_iid(0x66)), |
| SCIF_INFO(0xffe41000, gic_iid(0x67)), |
| SCIF_INFO(0xffe42000, gic_iid(0x68)), |
| SCIF_INFO(0xffe43000, gic_iid(0x69)), |
| SCIF_INFO(0xffe44000, gic_iid(0x6a)), |
| SCIF_INFO(0xffe45000, gic_iid(0x6b)), |
| }; |
| |
| /* TMU */ |
| static struct resource sh_tmu0_resources[] __initdata = { |
| DEFINE_RES_MEM(0xffd80008, 12), |
| DEFINE_RES_IRQ(gic_iid(0x40)), |
| }; |
| |
| static struct sh_timer_config sh_tmu0_platform_data __initdata = { |
| .name = "TMU00", |
| .channel_offset = 0x4, |
| .timer_bit = 0, |
| .clockevent_rating = 200, |
| }; |
| |
| static struct resource sh_tmu1_resources[] __initdata = { |
| DEFINE_RES_MEM(0xffd80014, 12), |
| DEFINE_RES_IRQ(gic_iid(0x41)), |
| }; |
| |
| static struct sh_timer_config sh_tmu1_platform_data __initdata = { |
| .name = "TMU01", |
| .channel_offset = 0x10, |
| .timer_bit = 1, |
| .clocksource_rating = 200, |
| }; |
| |
| #define r8a7778_register_tmu(idx) \ |
| platform_device_register_resndata( \ |
| &platform_bus, "sh_tmu", idx, \ |
| sh_tmu##idx##_resources, \ |
| ARRAY_SIZE(sh_tmu##idx##_resources), \ |
| &sh_tmu##idx##_platform_data, \ |
| sizeof(sh_tmu##idx##_platform_data)) |
| |
| /* USB */ |
| static struct usb_phy *phy; |
| |
| static int usb_power_on(struct platform_device *pdev) |
| { |
| if (IS_ERR(phy)) |
| return PTR_ERR(phy); |
| |
| pm_runtime_enable(&pdev->dev); |
| pm_runtime_get_sync(&pdev->dev); |
| |
| usb_phy_init(phy); |
| |
| return 0; |
| } |
| |
| static void usb_power_off(struct platform_device *pdev) |
| { |
| if (IS_ERR(phy)) |
| return; |
| |
| usb_phy_shutdown(phy); |
| |
| pm_runtime_put_sync(&pdev->dev); |
| pm_runtime_disable(&pdev->dev); |
| } |
| |
| static int ehci_init_internal_buffer(struct usb_hcd *hcd) |
| { |
| /* |
| * Below are recommended values from the datasheet; |
| * see [USB :: Setting of EHCI Internal Buffer]. |
| */ |
| /* EHCI IP internal buffer setting */ |
| iowrite32(0x00ff0040, hcd->regs + 0x0094); |
| /* EHCI IP internal buffer enable */ |
| iowrite32(0x00000001, hcd->regs + 0x009C); |
| |
| return 0; |
| } |
| |
| static struct usb_ehci_pdata ehci_pdata __initdata = { |
| .power_on = usb_power_on, |
| .power_off = usb_power_off, |
| .power_suspend = usb_power_off, |
| .pre_setup = ehci_init_internal_buffer, |
| }; |
| |
| static struct resource ehci_resources[] __initdata = { |
| DEFINE_RES_MEM(0xffe70000, 0x400), |
| DEFINE_RES_IRQ(gic_iid(0x4c)), |
| }; |
| |
| static struct usb_ohci_pdata ohci_pdata __initdata = { |
| .power_on = usb_power_on, |
| .power_off = usb_power_off, |
| .power_suspend = usb_power_off, |
| }; |
| |
| static struct resource ohci_resources[] __initdata = { |
| DEFINE_RES_MEM(0xffe70400, 0x400), |
| DEFINE_RES_IRQ(gic_iid(0x4c)), |
| }; |
| |
| #define USB_PLATFORM_INFO(hci) \ |
| static struct platform_device_info hci##_info __initdata = { \ |
| .parent = &platform_bus, \ |
| .name = #hci "-platform", \ |
| .id = -1, \ |
| .res = hci##_resources, \ |
| .num_res = ARRAY_SIZE(hci##_resources), \ |
| .data = &hci##_pdata, \ |
| .size_data = sizeof(hci##_pdata), \ |
| .dma_mask = DMA_BIT_MASK(32), \ |
| } |
| |
| USB_PLATFORM_INFO(ehci); |
| USB_PLATFORM_INFO(ohci); |
| |
| /* PFC/GPIO */ |
| static struct resource pfc_resources[] __initdata = { |
| DEFINE_RES_MEM(0xfffc0000, 0x118), |
| }; |
| |
| #define R8A7778_GPIO(idx) \ |
| static struct resource r8a7778_gpio##idx##_resources[] __initdata = { \ |
| DEFINE_RES_MEM(0xffc40000 + 0x1000 * (idx), 0x30), \ |
| DEFINE_RES_IRQ(gic_iid(0x87)), \ |
| }; \ |
| \ |
| static struct gpio_rcar_config r8a7778_gpio##idx##_platform_data __initdata = { \ |
| .gpio_base = 32 * (idx), \ |
| .irq_base = GPIO_IRQ_BASE(idx), \ |
| .number_of_pins = 32, \ |
| .pctl_name = "pfc-r8a7778", \ |
| } |
| |
| R8A7778_GPIO(0); |
| R8A7778_GPIO(1); |
| R8A7778_GPIO(2); |
| R8A7778_GPIO(3); |
| R8A7778_GPIO(4); |
| |
| #define r8a7778_register_gpio(idx) \ |
| platform_device_register_resndata( \ |
| &platform_bus, "gpio_rcar", idx, \ |
| r8a7778_gpio##idx##_resources, \ |
| ARRAY_SIZE(r8a7778_gpio##idx##_resources), \ |
| &r8a7778_gpio##idx##_platform_data, \ |
| sizeof(r8a7778_gpio##idx##_platform_data)) |
| |
| void __init r8a7778_pinmux_init(void) |
| { |
| platform_device_register_simple( |
| "pfc-r8a7778", -1, |
| pfc_resources, |
| ARRAY_SIZE(pfc_resources)); |
| |
| r8a7778_register_gpio(0); |
| r8a7778_register_gpio(1); |
| r8a7778_register_gpio(2); |
| r8a7778_register_gpio(3); |
| r8a7778_register_gpio(4); |
| }; |
| |
| /* I2C */ |
| static struct resource i2c_resources[] __initdata = { |
| /* I2C0 */ |
| DEFINE_RES_MEM(0xffc70000, 0x1000), |
| DEFINE_RES_IRQ(gic_iid(0x63)), |
| /* I2C1 */ |
| DEFINE_RES_MEM(0xffc71000, 0x1000), |
| DEFINE_RES_IRQ(gic_iid(0x6e)), |
| /* I2C2 */ |
| DEFINE_RES_MEM(0xffc72000, 0x1000), |
| DEFINE_RES_IRQ(gic_iid(0x6c)), |
| /* I2C3 */ |
| DEFINE_RES_MEM(0xffc73000, 0x1000), |
| DEFINE_RES_IRQ(gic_iid(0x6d)), |
| }; |
| |
| static void __init r8a7778_register_i2c(int id) |
| { |
| BUG_ON(id < 0 || id > 3); |
| |
| platform_device_register_simple( |
| "i2c-rcar", id, |
| i2c_resources + (2 * id), 2); |
| } |
| |
| /* HSPI */ |
| static struct resource hspi_resources[] __initdata = { |
| /* HSPI0 */ |
| DEFINE_RES_MEM(0xfffc7000, 0x18), |
| DEFINE_RES_IRQ(gic_iid(0x5f)), |
| /* HSPI1 */ |
| DEFINE_RES_MEM(0xfffc8000, 0x18), |
| DEFINE_RES_IRQ(gic_iid(0x74)), |
| /* HSPI2 */ |
| DEFINE_RES_MEM(0xfffc6000, 0x18), |
| DEFINE_RES_IRQ(gic_iid(0x75)), |
| }; |
| |
| static void __init r8a7778_register_hspi(int id) |
| { |
| BUG_ON(id < 0 || id > 2); |
| |
| platform_device_register_simple( |
| "sh-hspi", id, |
| hspi_resources + (2 * id), 2); |
| } |
| |
| void __init r8a7778_add_dt_devices(void) |
| { |
| int i; |
| |
| #ifdef CONFIG_CACHE_L2X0 |
| void __iomem *base = ioremap_nocache(0xf0100000, 0x1000); |
| if (base) { |
| /* |
| * Early BRESP enable, Shared attribute override enable, 64K*16way |
| * don't call iounmap(base) |
| */ |
| l2x0_init(base, 0x40470000, 0x82000fff); |
| } |
| #endif |
| |
| for (i = 0; i < ARRAY_SIZE(scif_platform_data); i++) |
| platform_device_register_data(&platform_bus, "sh-sci", i, |
| &scif_platform_data[i], |
| sizeof(struct plat_sci_port)); |
| |
| r8a7778_register_tmu(0); |
| r8a7778_register_tmu(1); |
| } |
| |
| void __init r8a7778_add_standard_devices(void) |
| { |
| r8a7778_add_dt_devices(); |
| r8a7778_register_i2c(0); |
| r8a7778_register_i2c(1); |
| r8a7778_register_i2c(2); |
| r8a7778_register_i2c(3); |
| r8a7778_register_hspi(0); |
| r8a7778_register_hspi(1); |
| r8a7778_register_hspi(2); |
| } |
| |
| void __init r8a7778_init_late(void) |
| { |
| phy = usb_get_phy(USB_PHY_TYPE_USB2); |
| |
| platform_device_register_full(&ehci_info); |
| platform_device_register_full(&ohci_info); |
| } |
| |
| static struct renesas_intc_irqpin_config irqpin_platform_data __initdata = { |
| .irq_base = irq_pin(0), /* IRQ0 -> IRQ3 */ |
| .sense_bitfield_width = 2, |
| }; |
| |
| static struct resource irqpin_resources[] __initdata = { |
| DEFINE_RES_MEM(0xfe78001c, 4), /* ICR1 */ |
| DEFINE_RES_MEM(0xfe780010, 4), /* INTPRI */ |
| DEFINE_RES_MEM(0xfe780024, 4), /* INTREQ */ |
| DEFINE_RES_MEM(0xfe780044, 4), /* INTMSK0 */ |
| DEFINE_RES_MEM(0xfe780064, 4), /* INTMSKCLR0 */ |
| DEFINE_RES_IRQ(gic_iid(0x3b)), /* IRQ0 */ |
| DEFINE_RES_IRQ(gic_iid(0x3c)), /* IRQ1 */ |
| DEFINE_RES_IRQ(gic_iid(0x3d)), /* IRQ2 */ |
| DEFINE_RES_IRQ(gic_iid(0x3e)), /* IRQ3 */ |
| }; |
| |
| void __init r8a7778_init_irq_extpin(int irlm) |
| { |
| void __iomem *icr0 = ioremap_nocache(0xfe780000, PAGE_SIZE); |
| unsigned long tmp; |
| |
| if (!icr0) { |
| pr_warn("r8a7778: unable to setup external irq pin mode\n"); |
| return; |
| } |
| |
| tmp = ioread32(icr0); |
| if (irlm) |
| tmp |= 1 << 23; /* IRQ0 -> IRQ3 as individual pins */ |
| else |
| tmp &= ~(1 << 23); /* IRL mode - not supported */ |
| tmp |= (1 << 21); /* LVLMODE = 1 */ |
| iowrite32(tmp, icr0); |
| iounmap(icr0); |
| |
| if (irlm) |
| platform_device_register_resndata( |
| &platform_bus, "renesas_intc_irqpin", -1, |
| irqpin_resources, ARRAY_SIZE(irqpin_resources), |
| &irqpin_platform_data, sizeof(irqpin_platform_data)); |
| } |
| |
| void __init r8a7778_init_delay(void) |
| { |
| shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */ |
| } |
| |
| #ifdef CONFIG_USE_OF |
| #define INT2SMSKCR0 0x82288 /* 0xfe782288 */ |
| #define INT2SMSKCR1 0x8228c /* 0xfe78228c */ |
| |
| #define INT2NTSR0 0x00018 /* 0xfe700018 */ |
| #define INT2NTSR1 0x0002c /* 0xfe70002c */ |
| void __init r8a7778_init_irq_dt(void) |
| { |
| void __iomem *base = ioremap_nocache(0xfe700000, 0x00100000); |
| |
| BUG_ON(!base); |
| |
| irqchip_init(); |
| |
| /* route all interrupts to ARM */ |
| __raw_writel(0x73ffffff, base + INT2NTSR0); |
| __raw_writel(0xffffffff, base + INT2NTSR1); |
| |
| /* unmask all known interrupts in INTCS2 */ |
| __raw_writel(0x08330773, base + INT2SMSKCR0); |
| __raw_writel(0x00311110, base + INT2SMSKCR1); |
| |
| iounmap(base); |
| } |
| |
| static const char *r8a7778_compat_dt[] __initdata = { |
| "renesas,r8a7778", |
| NULL, |
| }; |
| |
| DT_MACHINE_START(R8A7778_DT, "Generic R8A7778 (Flattened Device Tree)") |
| .init_early = r8a7778_init_delay, |
| .init_irq = r8a7778_init_irq_dt, |
| .dt_compat = r8a7778_compat_dt, |
| .init_late = r8a7778_init_late, |
| MACHINE_END |
| |
| #endif /* CONFIG_USE_OF */ |