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![Marc Zyngier](/assets/img/avatar_default.png)
shmobile only uses gic_arch_extn.irq_set_wake to prevent the GIC from returning -ENXIO when receiving a wake-up configuration request. It is a lot simpler to tell the irq layer that we don't need any configuration by using the IRQCHIP_SKIP_SET_WAKE, thanks to the new gic_set_irqchip_flags function. Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1426088737-15817-3-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
771 lines
21 KiB
C
771 lines
21 KiB
C
/*
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* r8a7779 processor support
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*
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* Copyright (C) 2011, 2013 Renesas Solutions Corp.
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* Copyright (C) 2011 Magnus Damm
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* Copyright (C) 2013 Cogent Embedded, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/irqchip.h>
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#include <linux/irqchip/arm-gic.h>
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#include <linux/of_platform.h>
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#include <linux/platform_data/dma-rcar-hpbdma.h>
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#include <linux/platform_data/gpio-rcar.h>
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#include <linux/platform_data/irq-renesas-intc-irqpin.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/input.h>
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#include <linux/io.h>
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#include <linux/serial_sci.h>
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#include <linux/sh_timer.h>
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#include <linux/dma-mapping.h>
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#include <linux/usb/otg.h>
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#include <linux/usb/hcd.h>
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#include <linux/usb/ehci_pdriver.h>
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#include <linux/usb/ohci_pdriver.h>
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#include <linux/pm_runtime.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <asm/mach/map.h>
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#include <asm/hardware/cache-l2x0.h>
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#include "common.h"
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#include "irqs.h"
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#include "r8a7779.h"
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static struct map_desc r8a7779_io_desc[] __initdata = {
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/* 2M identity mapping for 0xf0000000 (MPCORE) */
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{
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.virtual = 0xf0000000,
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.pfn = __phys_to_pfn(0xf0000000),
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.length = SZ_2M,
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.type = MT_DEVICE_NONSHARED
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},
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/* 16M identity mapping for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
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{
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.virtual = 0xfe000000,
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.pfn = __phys_to_pfn(0xfe000000),
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.length = SZ_16M,
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.type = MT_DEVICE_NONSHARED
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},
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};
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void __init r8a7779_map_io(void)
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{
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debug_ll_io_init();
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iotable_init(r8a7779_io_desc, ARRAY_SIZE(r8a7779_io_desc));
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}
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/* IRQ */
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#define INT2SMSKCR0 IOMEM(0xfe7822a0)
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#define INT2SMSKCR1 IOMEM(0xfe7822a4)
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#define INT2SMSKCR2 IOMEM(0xfe7822a8)
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#define INT2SMSKCR3 IOMEM(0xfe7822ac)
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#define INT2SMSKCR4 IOMEM(0xfe7822b0)
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#define INT2NTSR0 IOMEM(0xfe700060)
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#define INT2NTSR1 IOMEM(0xfe700064)
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static struct renesas_intc_irqpin_config irqpin0_platform_data __initdata = {
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.irq_base = irq_pin(0), /* IRQ0 -> IRQ3 */
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.sense_bitfield_width = 2,
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};
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static struct resource irqpin0_resources[] __initdata = {
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DEFINE_RES_MEM(0xfe78001c, 4), /* ICR1 */
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DEFINE_RES_MEM(0xfe780010, 4), /* INTPRI */
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DEFINE_RES_MEM(0xfe780024, 4), /* INTREQ */
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DEFINE_RES_MEM(0xfe780044, 4), /* INTMSK0 */
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DEFINE_RES_MEM(0xfe780064, 4), /* INTMSKCLR0 */
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DEFINE_RES_IRQ(gic_spi(27)), /* IRQ0 */
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DEFINE_RES_IRQ(gic_spi(28)), /* IRQ1 */
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DEFINE_RES_IRQ(gic_spi(29)), /* IRQ2 */
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DEFINE_RES_IRQ(gic_spi(30)), /* IRQ3 */
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};
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void __init r8a7779_init_irq_extpin_dt(int irlm)
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{
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void __iomem *icr0 = ioremap_nocache(0xfe780000, PAGE_SIZE);
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u32 tmp;
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if (!icr0) {
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pr_warn("r8a7779: unable to setup external irq pin mode\n");
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return;
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}
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tmp = ioread32(icr0);
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if (irlm)
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tmp |= 1 << 23; /* IRQ0 -> IRQ3 as individual pins */
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else
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tmp &= ~(1 << 23); /* IRL mode - not supported */
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tmp |= (1 << 21); /* LVLMODE = 1 */
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iowrite32(tmp, icr0);
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iounmap(icr0);
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}
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void __init r8a7779_init_irq_extpin(int irlm)
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{
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r8a7779_init_irq_extpin_dt(irlm);
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if (irlm)
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platform_device_register_resndata(
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NULL, "renesas_intc_irqpin", -1,
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irqpin0_resources, ARRAY_SIZE(irqpin0_resources),
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&irqpin0_platform_data, sizeof(irqpin0_platform_data));
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}
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/* PFC/GPIO */
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static struct resource r8a7779_pfc_resources[] = {
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DEFINE_RES_MEM(0xfffc0000, 0x023c),
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};
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static struct platform_device r8a7779_pfc_device = {
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.name = "pfc-r8a7779",
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.id = -1,
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.resource = r8a7779_pfc_resources,
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.num_resources = ARRAY_SIZE(r8a7779_pfc_resources),
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};
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#define R8A7779_GPIO(idx, npins) \
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static struct resource r8a7779_gpio##idx##_resources[] = { \
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DEFINE_RES_MEM(0xffc40000 + (0x1000 * (idx)), 0x002c), \
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DEFINE_RES_IRQ(gic_iid(0xad + (idx))), \
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}; \
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\
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static struct gpio_rcar_config r8a7779_gpio##idx##_platform_data = { \
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.gpio_base = 32 * (idx), \
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.irq_base = 0, \
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.number_of_pins = npins, \
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.pctl_name = "pfc-r8a7779", \
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}; \
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\
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static struct platform_device r8a7779_gpio##idx##_device = { \
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.name = "gpio_rcar", \
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.id = idx, \
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.resource = r8a7779_gpio##idx##_resources, \
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.num_resources = ARRAY_SIZE(r8a7779_gpio##idx##_resources), \
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.dev = { \
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.platform_data = &r8a7779_gpio##idx##_platform_data, \
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}, \
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}
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R8A7779_GPIO(0, 32);
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R8A7779_GPIO(1, 32);
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R8A7779_GPIO(2, 32);
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R8A7779_GPIO(3, 32);
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R8A7779_GPIO(4, 32);
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R8A7779_GPIO(5, 32);
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R8A7779_GPIO(6, 9);
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static struct platform_device *r8a7779_pinctrl_devices[] __initdata = {
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&r8a7779_pfc_device,
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&r8a7779_gpio0_device,
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&r8a7779_gpio1_device,
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&r8a7779_gpio2_device,
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&r8a7779_gpio3_device,
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&r8a7779_gpio4_device,
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&r8a7779_gpio5_device,
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&r8a7779_gpio6_device,
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};
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void __init r8a7779_pinmux_init(void)
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{
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platform_add_devices(r8a7779_pinctrl_devices,
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ARRAY_SIZE(r8a7779_pinctrl_devices));
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}
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/* SCIF */
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#define R8A7779_SCIF(index, baseaddr, irq) \
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static struct plat_sci_port scif##index##_platform_data = { \
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.type = PORT_SCIF, \
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.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \
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.scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, \
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}; \
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\
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static struct resource scif##index##_resources[] = { \
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DEFINE_RES_MEM(baseaddr, 0x100), \
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DEFINE_RES_IRQ(irq), \
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}; \
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\
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static struct platform_device scif##index##_device = { \
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.name = "sh-sci", \
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.id = index, \
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.resource = scif##index##_resources, \
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.num_resources = ARRAY_SIZE(scif##index##_resources), \
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.dev = { \
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.platform_data = &scif##index##_platform_data, \
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}, \
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}
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R8A7779_SCIF(0, 0xffe40000, gic_iid(0x78));
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R8A7779_SCIF(1, 0xffe41000, gic_iid(0x79));
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R8A7779_SCIF(2, 0xffe42000, gic_iid(0x7a));
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R8A7779_SCIF(3, 0xffe43000, gic_iid(0x7b));
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R8A7779_SCIF(4, 0xffe44000, gic_iid(0x7c));
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R8A7779_SCIF(5, 0xffe45000, gic_iid(0x7d));
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/* TMU */
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static struct sh_timer_config tmu0_platform_data = {
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.channels_mask = 7,
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};
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static struct resource tmu0_resources[] = {
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DEFINE_RES_MEM(0xffd80000, 0x30),
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DEFINE_RES_IRQ(gic_iid(0x40)),
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DEFINE_RES_IRQ(gic_iid(0x41)),
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DEFINE_RES_IRQ(gic_iid(0x42)),
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};
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static struct platform_device tmu0_device = {
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.name = "sh-tmu",
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.id = 0,
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.dev = {
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.platform_data = &tmu0_platform_data,
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},
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.resource = tmu0_resources,
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.num_resources = ARRAY_SIZE(tmu0_resources),
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};
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/* I2C */
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static struct resource rcar_i2c0_res[] = {
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{
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.start = 0xffc70000,
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.end = 0xffc70fff,
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.flags = IORESOURCE_MEM,
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}, {
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.start = gic_iid(0x6f),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device i2c0_device = {
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.name = "i2c-rcar",
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.id = 0,
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.resource = rcar_i2c0_res,
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.num_resources = ARRAY_SIZE(rcar_i2c0_res),
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};
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static struct resource rcar_i2c1_res[] = {
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{
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.start = 0xffc71000,
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.end = 0xffc71fff,
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.flags = IORESOURCE_MEM,
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}, {
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.start = gic_iid(0x72),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device i2c1_device = {
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.name = "i2c-rcar",
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.id = 1,
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.resource = rcar_i2c1_res,
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.num_resources = ARRAY_SIZE(rcar_i2c1_res),
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};
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static struct resource rcar_i2c2_res[] = {
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{
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.start = 0xffc72000,
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.end = 0xffc72fff,
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.flags = IORESOURCE_MEM,
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}, {
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.start = gic_iid(0x70),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device i2c2_device = {
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.name = "i2c-rcar",
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.id = 2,
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.resource = rcar_i2c2_res,
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.num_resources = ARRAY_SIZE(rcar_i2c2_res),
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};
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static struct resource rcar_i2c3_res[] = {
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{
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.start = 0xffc73000,
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.end = 0xffc73fff,
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.flags = IORESOURCE_MEM,
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}, {
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.start = gic_iid(0x71),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device i2c3_device = {
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.name = "i2c-rcar",
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.id = 3,
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.resource = rcar_i2c3_res,
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.num_resources = ARRAY_SIZE(rcar_i2c3_res),
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};
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static struct resource sata_resources[] = {
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[0] = {
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.name = "rcar-sata",
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.start = 0xfc600000,
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.end = 0xfc601fff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = gic_iid(0x84),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device sata_device = {
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.name = "sata_rcar",
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.id = -1,
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.resource = sata_resources,
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.num_resources = ARRAY_SIZE(sata_resources),
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.dev = {
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.dma_mask = &sata_device.dev.coherent_dma_mask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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};
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/* USB */
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static struct usb_phy *phy;
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static int usb_power_on(struct platform_device *pdev)
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{
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if (IS_ERR(phy))
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return PTR_ERR(phy);
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pm_runtime_enable(&pdev->dev);
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pm_runtime_get_sync(&pdev->dev);
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usb_phy_init(phy);
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return 0;
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}
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static void usb_power_off(struct platform_device *pdev)
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{
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if (IS_ERR(phy))
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return;
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usb_phy_shutdown(phy);
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pm_runtime_put_sync(&pdev->dev);
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pm_runtime_disable(&pdev->dev);
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}
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static int ehci_init_internal_buffer(struct usb_hcd *hcd)
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{
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/*
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* Below are recommended values from the datasheet;
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* see [USB :: Setting of EHCI Internal Buffer].
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*/
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/* EHCI IP internal buffer setting */
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iowrite32(0x00ff0040, hcd->regs + 0x0094);
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/* EHCI IP internal buffer enable */
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iowrite32(0x00000001, hcd->regs + 0x009C);
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return 0;
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}
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static struct usb_ehci_pdata ehcix_pdata = {
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.power_on = usb_power_on,
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.power_off = usb_power_off,
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.power_suspend = usb_power_off,
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.pre_setup = ehci_init_internal_buffer,
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};
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static struct resource ehci0_resources[] = {
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[0] = {
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.start = 0xffe70000,
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.end = 0xffe70400 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = gic_iid(0x4c),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device ehci0_device = {
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.name = "ehci-platform",
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.id = 0,
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.dev = {
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.dma_mask = &ehci0_device.dev.coherent_dma_mask,
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.coherent_dma_mask = 0xffffffff,
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.platform_data = &ehcix_pdata,
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},
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.num_resources = ARRAY_SIZE(ehci0_resources),
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.resource = ehci0_resources,
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};
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static struct resource ehci1_resources[] = {
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[0] = {
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.start = 0xfff70000,
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.end = 0xfff70400 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = gic_iid(0x4d),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device ehci1_device = {
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.name = "ehci-platform",
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.id = 1,
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.dev = {
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.dma_mask = &ehci1_device.dev.coherent_dma_mask,
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.coherent_dma_mask = 0xffffffff,
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.platform_data = &ehcix_pdata,
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},
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.num_resources = ARRAY_SIZE(ehci1_resources),
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.resource = ehci1_resources,
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};
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static struct usb_ohci_pdata ohcix_pdata = {
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.power_on = usb_power_on,
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.power_off = usb_power_off,
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.power_suspend = usb_power_off,
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};
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static struct resource ohci0_resources[] = {
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[0] = {
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.start = 0xffe70400,
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.end = 0xffe70800 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = gic_iid(0x4c),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device ohci0_device = {
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.name = "ohci-platform",
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.id = 0,
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.dev = {
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.dma_mask = &ohci0_device.dev.coherent_dma_mask,
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.coherent_dma_mask = 0xffffffff,
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.platform_data = &ohcix_pdata,
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},
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.num_resources = ARRAY_SIZE(ohci0_resources),
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.resource = ohci0_resources,
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};
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static struct resource ohci1_resources[] = {
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[0] = {
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.start = 0xfff70400,
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.end = 0xfff70800 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
|
|
.start = gic_iid(0x4d),
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device ohci1_device = {
|
|
.name = "ohci-platform",
|
|
.id = 1,
|
|
.dev = {
|
|
.dma_mask = &ohci1_device.dev.coherent_dma_mask,
|
|
.coherent_dma_mask = 0xffffffff,
|
|
.platform_data = &ohcix_pdata,
|
|
},
|
|
.num_resources = ARRAY_SIZE(ohci1_resources),
|
|
.resource = ohci1_resources,
|
|
};
|
|
|
|
/* HPB-DMA */
|
|
|
|
/* Asynchronous mode register bits */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD43_MASK BIT(23) /* MMC1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD43_SINGLE BIT(23) /* MMC1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD43_MULTI 0 /* MMC1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD43_MASK BIT(22) /* MMC1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD43_BURST BIT(22) /* MMC1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD43_NBURST 0 /* MMC1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD24_MASK BIT(21) /* MMC0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD24_SINGLE BIT(21) /* MMC0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD24_MULTI 0 /* MMC0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD24_MASK BIT(20) /* MMC0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD24_BURST BIT(20) /* MMC0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD24_NBURST 0 /* MMC0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD41_MASK BIT(19) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD41_SINGLE BIT(19) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD41_MULTI 0 /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD41_MASK BIT(18) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD41_BURST BIT(18) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD41_NBURST 0 /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD40_MASK BIT(17) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD40_SINGLE BIT(17) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD40_MULTI 0 /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD40_MASK BIT(16) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD40_BURST BIT(16) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD40_NBURST 0 /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD39_MASK BIT(15) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD39_SINGLE BIT(15) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD39_MULTI 0 /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD39_MASK BIT(14) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD39_BURST BIT(14) /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD39_NBURST 0 /* SDHI3 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD27_MASK BIT(13) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD27_SINGLE BIT(13) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD27_MULTI 0 /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD27_MASK BIT(12) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD27_BURST BIT(12) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD27_NBURST 0 /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD26_MASK BIT(11) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD26_SINGLE BIT(11) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD26_MULTI 0 /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD26_MASK BIT(10) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD26_BURST BIT(10) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD26_NBURST 0 /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD25_MASK BIT(9) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD25_SINGLE BIT(9) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD25_MULTI 0 /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD25_MASK BIT(8) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD25_BURST BIT(8) /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD25_NBURST 0 /* SDHI2 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD23_MASK BIT(7) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD23_SINGLE BIT(7) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD23_MULTI 0 /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD23_MASK BIT(6) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD23_BURST BIT(6) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD23_NBURST 0 /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD22_MASK BIT(5) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD22_SINGLE BIT(5) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD22_MULTI 0 /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD22_MASK BIT(4) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD22_BURST BIT(4) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD22_NBURST 0 /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD21_MASK BIT(3) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD21_SINGLE BIT(3) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD21_MULTI 0 /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD21_MASK BIT(2) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD21_BURST BIT(2) /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD21_NBURST 0 /* SDHI0 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD20_MASK BIT(1) /* SDHI1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD20_SINGLE BIT(1) /* SDHI1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASMD20_MULTI 0 /* SDHI1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD20_MASK BIT(0) /* SDHI1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD20_BURST BIT(0) /* SDHI1 */
|
|
#define HPB_DMAE_ASYNCMDR_ASBTMD20_NBURST 0 /* SDHI1 */
|
|
|
|
static const struct hpb_dmae_slave_config hpb_dmae_slaves[] = {
|
|
{
|
|
.id = HPBDMA_SLAVE_SDHI0_TX,
|
|
.addr = 0xffe4c000 + 0x30,
|
|
.dcr = HPB_DMAE_DCR_SPDS_16BIT |
|
|
HPB_DMAE_DCR_DMDL |
|
|
HPB_DMAE_DCR_DPDS_16BIT,
|
|
.rstr = HPB_DMAE_ASYNCRSTR_ASRST21 |
|
|
HPB_DMAE_ASYNCRSTR_ASRST22 |
|
|
HPB_DMAE_ASYNCRSTR_ASRST23,
|
|
.mdr = HPB_DMAE_ASYNCMDR_ASMD21_SINGLE |
|
|
HPB_DMAE_ASYNCMDR_ASBTMD21_NBURST,
|
|
.mdm = HPB_DMAE_ASYNCMDR_ASMD21_MASK |
|
|
HPB_DMAE_ASYNCMDR_ASBTMD21_MASK,
|
|
.port = 0x0D0C,
|
|
.flags = HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
|
|
.dma_ch = 21,
|
|
}, {
|
|
.id = HPBDMA_SLAVE_SDHI0_RX,
|
|
.addr = 0xffe4c000 + 0x30,
|
|
.dcr = HPB_DMAE_DCR_SMDL |
|
|
HPB_DMAE_DCR_SPDS_16BIT |
|
|
HPB_DMAE_DCR_DPDS_16BIT,
|
|
.rstr = HPB_DMAE_ASYNCRSTR_ASRST21 |
|
|
HPB_DMAE_ASYNCRSTR_ASRST22 |
|
|
HPB_DMAE_ASYNCRSTR_ASRST23,
|
|
.mdr = HPB_DMAE_ASYNCMDR_ASMD22_SINGLE |
|
|
HPB_DMAE_ASYNCMDR_ASBTMD22_NBURST,
|
|
.mdm = HPB_DMAE_ASYNCMDR_ASMD22_MASK |
|
|
HPB_DMAE_ASYNCMDR_ASBTMD22_MASK,
|
|
.port = 0x0D0C,
|
|
.flags = HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
|
|
.dma_ch = 22,
|
|
},
|
|
};
|
|
|
|
static const struct hpb_dmae_channel hpb_dmae_channels[] = {
|
|
HPB_DMAE_CHANNEL(0x93, HPBDMA_SLAVE_SDHI0_TX), /* ch. 21 */
|
|
HPB_DMAE_CHANNEL(0x93, HPBDMA_SLAVE_SDHI0_RX), /* ch. 22 */
|
|
};
|
|
|
|
static struct hpb_dmae_pdata dma_platform_data __initdata = {
|
|
.slaves = hpb_dmae_slaves,
|
|
.num_slaves = ARRAY_SIZE(hpb_dmae_slaves),
|
|
.channels = hpb_dmae_channels,
|
|
.num_channels = ARRAY_SIZE(hpb_dmae_channels),
|
|
.ts_shift = {
|
|
[XMIT_SZ_8BIT] = 0,
|
|
[XMIT_SZ_16BIT] = 1,
|
|
[XMIT_SZ_32BIT] = 2,
|
|
},
|
|
.num_hw_channels = 44,
|
|
};
|
|
|
|
static struct resource hpb_dmae_resources[] __initdata = {
|
|
/* Channel registers */
|
|
DEFINE_RES_MEM(0xffc08000, 0x1000),
|
|
/* Common registers */
|
|
DEFINE_RES_MEM(0xffc09000, 0x170),
|
|
/* Asynchronous reset registers */
|
|
DEFINE_RES_MEM(0xffc00300, 4),
|
|
/* Asynchronous mode registers */
|
|
DEFINE_RES_MEM(0xffc00400, 4),
|
|
/* IRQ for DMA channels */
|
|
DEFINE_RES_NAMED(gic_iid(0x8e), 12, NULL, IORESOURCE_IRQ),
|
|
};
|
|
|
|
static void __init r8a7779_register_hpb_dmae(void)
|
|
{
|
|
platform_device_register_resndata(NULL, "hpb-dma-engine",
|
|
-1, hpb_dmae_resources,
|
|
ARRAY_SIZE(hpb_dmae_resources),
|
|
&dma_platform_data,
|
|
sizeof(dma_platform_data));
|
|
}
|
|
|
|
static struct platform_device *r8a7779_early_devices[] __initdata = {
|
|
&tmu0_device,
|
|
};
|
|
|
|
static struct platform_device *r8a7779_standard_devices[] __initdata = {
|
|
&scif0_device,
|
|
&scif1_device,
|
|
&scif2_device,
|
|
&scif3_device,
|
|
&scif4_device,
|
|
&scif5_device,
|
|
&i2c0_device,
|
|
&i2c1_device,
|
|
&i2c2_device,
|
|
&i2c3_device,
|
|
&sata_device,
|
|
};
|
|
|
|
void __init r8a7779_add_standard_devices(void)
|
|
{
|
|
#ifdef CONFIG_CACHE_L2X0
|
|
/* Shared attribute override enable, 64K*16way */
|
|
l2x0_init(IOMEM(0xf0100000), 0x00400000, 0xc20f0fff);
|
|
#endif
|
|
r8a7779_pm_init();
|
|
|
|
r8a7779_init_pm_domains();
|
|
|
|
platform_add_devices(r8a7779_early_devices,
|
|
ARRAY_SIZE(r8a7779_early_devices));
|
|
platform_add_devices(r8a7779_standard_devices,
|
|
ARRAY_SIZE(r8a7779_standard_devices));
|
|
r8a7779_register_hpb_dmae();
|
|
}
|
|
|
|
void __init r8a7779_add_early_devices(void)
|
|
{
|
|
early_platform_add_devices(r8a7779_early_devices,
|
|
ARRAY_SIZE(r8a7779_early_devices));
|
|
|
|
/* Early serial console setup is not included here due to
|
|
* memory map collisions. The SCIF serial ports in r8a7779
|
|
* are difficult to identity map 1:1 due to collision with the
|
|
* virtual memory range used by the coherent DMA code on ARM.
|
|
*
|
|
* Anyone wanting to debug early can remove UPF_IOREMAP from
|
|
* the sh-sci serial console platform data, adjust mapbase
|
|
* to a static M:N virt:phys mapping that needs to be added to
|
|
* the mappings passed with iotable_init() above.
|
|
*
|
|
* Then add a call to shmobile_setup_console() from this function.
|
|
*
|
|
* As a final step pass earlyprint=sh-sci.2,115200 on the kernel
|
|
* command line in case of the marzen board.
|
|
*/
|
|
}
|
|
|
|
static struct platform_device *r8a7779_late_devices[] __initdata = {
|
|
&ehci0_device,
|
|
&ehci1_device,
|
|
&ohci0_device,
|
|
&ohci1_device,
|
|
};
|
|
|
|
void __init r8a7779_init_late(void)
|
|
{
|
|
/* get USB PHY */
|
|
phy = usb_get_phy(USB_PHY_TYPE_USB2);
|
|
|
|
shmobile_init_late();
|
|
platform_add_devices(r8a7779_late_devices,
|
|
ARRAY_SIZE(r8a7779_late_devices));
|
|
}
|
|
|
|
#ifdef CONFIG_USE_OF
|
|
void __init r8a7779_init_irq_dt(void)
|
|
{
|
|
#ifdef CONFIG_ARCH_SHMOBILE_LEGACY
|
|
void __iomem *gic_dist_base = ioremap_nocache(0xf0001000, 0x1000);
|
|
void __iomem *gic_cpu_base = ioremap_nocache(0xf0000100, 0x1000);
|
|
#endif
|
|
gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE);
|
|
|
|
#ifdef CONFIG_ARCH_SHMOBILE_LEGACY
|
|
gic_init(0, 29, gic_dist_base, gic_cpu_base);
|
|
#else
|
|
irqchip_init();
|
|
#endif
|
|
/* route all interrupts to ARM */
|
|
__raw_writel(0xffffffff, INT2NTSR0);
|
|
__raw_writel(0x3fffffff, INT2NTSR1);
|
|
|
|
/* unmask all known interrupts in INTCS2 */
|
|
__raw_writel(0xfffffff0, INT2SMSKCR0);
|
|
__raw_writel(0xfff7ffff, INT2SMSKCR1);
|
|
__raw_writel(0xfffbffdf, INT2SMSKCR2);
|
|
__raw_writel(0xbffffffc, INT2SMSKCR3);
|
|
__raw_writel(0x003fee3f, INT2SMSKCR4);
|
|
}
|
|
|
|
#define MODEMR 0xffcc0020
|
|
|
|
u32 __init r8a7779_read_mode_pins(void)
|
|
{
|
|
static u32 mode;
|
|
static bool mode_valid;
|
|
|
|
if (!mode_valid) {
|
|
void __iomem *modemr = ioremap_nocache(MODEMR, PAGE_SIZE);
|
|
BUG_ON(!modemr);
|
|
mode = ioread32(modemr);
|
|
iounmap(modemr);
|
|
mode_valid = true;
|
|
}
|
|
|
|
return mode;
|
|
}
|
|
|
|
static const char *r8a7779_compat_dt[] __initdata = {
|
|
"renesas,r8a7779",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(R8A7779_DT, "Generic R8A7779 (Flattened Device Tree)")
|
|
.map_io = r8a7779_map_io,
|
|
.init_early = shmobile_init_delay,
|
|
.init_irq = r8a7779_init_irq_dt,
|
|
.init_late = shmobile_init_late,
|
|
.dt_compat = r8a7779_compat_dt,
|
|
MACHINE_END
|
|
#endif /* CONFIG_USE_OF */
|