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c78a41fc04
As a final bit of preparation for converting to ARCH_MULTIPLATFORM, change the interrupt handling for s3c24xx to use sparse IRQs. Since the number of possible interrupts is already fixed and relatively small per chip, just make it use all legacy interrupts preallocated using the .nr_irqs field in the machine descriptor, rather than actually allocating domains on the fly. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
364 lines
8.6 KiB
C
364 lines
8.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// Copyright (c) 2003-2008 Simtec Electronics
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// Ben Dooks <ben@simtec.co.uk>
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//
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// Machine support for Thorcom VR1000 board. Designed for Thorcom by
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// Simtec Electronics, http://www.simtec.co.uk/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/gpio.h>
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#include <linux/gpio/machine.h>
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#include <linux/dm9000.h>
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#include <linux/i2c.h>
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#include <linux/serial.h>
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#include <linux/tty.h>
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#include <linux/serial_8250.h>
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#include <linux/serial_reg.h>
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#include <linux/serial_s3c.h>
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#include <linux/io.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <linux/platform_data/leds-s3c24xx.h>
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#include <linux/platform_data/i2c-s3c2410.h>
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#include <linux/platform_data/asoc-s3c24xx_simtec.h>
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#include "regs-gpio.h"
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#include "gpio-samsung.h"
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#include "gpio-cfg.h"
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#include "cpu.h"
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#include "devs.h"
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#include "bast.h"
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#include "s3c24xx.h"
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#include "simtec.h"
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#include "vr1000.h"
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/* macros for virtual address mods for the io space entries */
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#define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
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#define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
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#define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
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#define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
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/* macros to modify the physical addresses for io space */
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#define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
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#define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
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#define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
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#define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
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static struct map_desc vr1000_iodesc[] __initdata = {
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/* ISA IO areas */
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{
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.virtual = (u32)S3C24XX_VA_ISA_BYTE,
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.pfn = PA_CS2(BAST_PA_ISAIO),
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.length = SZ_16M,
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.type = MT_DEVICE,
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},
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/* CPLD control registers, and external interrupt controls */
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{
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.virtual = (u32)VR1000_VA_CTRL1,
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.pfn = __phys_to_pfn(VR1000_PA_CTRL1),
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.length = SZ_1M,
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.type = MT_DEVICE,
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}, {
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.virtual = (u32)VR1000_VA_CTRL2,
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.pfn = __phys_to_pfn(VR1000_PA_CTRL2),
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.length = SZ_1M,
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.type = MT_DEVICE,
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}, {
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.virtual = (u32)VR1000_VA_CTRL3,
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.pfn = __phys_to_pfn(VR1000_PA_CTRL3),
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.length = SZ_1M,
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.type = MT_DEVICE,
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}, {
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.virtual = (u32)VR1000_VA_CTRL4,
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.pfn = __phys_to_pfn(VR1000_PA_CTRL4),
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.length = SZ_1M,
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.type = MT_DEVICE,
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},
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};
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#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
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#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
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#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
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static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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[1] = {
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.hwport = 1,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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/* port 2 is not actually used */
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[2] = {
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.hwport = 2,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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}
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};
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/* definitions for the vr1000 extra 16550 serial ports */
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#define VR1000_BAUDBASE (3692307)
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#define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
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static struct plat_serial8250_port serial_platform_data[] = {
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[0] = {
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.mapbase = VR1000_SERIAL_MAPBASE(0),
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.irq = VR1000_IRQ_SERIAL + 0,
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.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
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.iotype = UPIO_MEM,
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.regshift = 0,
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.uartclk = VR1000_BAUDBASE,
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},
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[1] = {
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.mapbase = VR1000_SERIAL_MAPBASE(1),
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.irq = VR1000_IRQ_SERIAL + 1,
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.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
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.iotype = UPIO_MEM,
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.regshift = 0,
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.uartclk = VR1000_BAUDBASE,
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},
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[2] = {
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.mapbase = VR1000_SERIAL_MAPBASE(2),
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.irq = VR1000_IRQ_SERIAL + 2,
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.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
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.iotype = UPIO_MEM,
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.regshift = 0,
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.uartclk = VR1000_BAUDBASE,
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},
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[3] = {
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.mapbase = VR1000_SERIAL_MAPBASE(3),
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.irq = VR1000_IRQ_SERIAL + 3,
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.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
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.iotype = UPIO_MEM,
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.regshift = 0,
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.uartclk = VR1000_BAUDBASE,
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},
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{ },
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};
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static struct platform_device serial_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev = {
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.platform_data = serial_platform_data,
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},
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};
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/* DM9000 ethernet devices */
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static struct resource vr1000_dm9k0_resource[] = {
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[0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
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[1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
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[2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
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| IORESOURCE_IRQ_HIGHLEVEL),
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};
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static struct resource vr1000_dm9k1_resource[] = {
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[0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
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[1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
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[2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
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| IORESOURCE_IRQ_HIGHLEVEL),
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};
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/* for the moment we limit ourselves to 16bit IO until some
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* better IO routines can be written and tested
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*/
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static struct dm9000_plat_data vr1000_dm9k_platdata = {
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.flags = DM9000_PLATF_16BITONLY,
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};
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static struct platform_device vr1000_dm9k0 = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(vr1000_dm9k0_resource),
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.resource = vr1000_dm9k0_resource,
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.dev = {
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.platform_data = &vr1000_dm9k_platdata,
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}
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};
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static struct platform_device vr1000_dm9k1 = {
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.name = "dm9000",
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.id = 1,
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.num_resources = ARRAY_SIZE(vr1000_dm9k1_resource),
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.resource = vr1000_dm9k1_resource,
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.dev = {
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.platform_data = &vr1000_dm9k_platdata,
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}
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};
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/* LEDS */
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static struct gpiod_lookup_table vr1000_led1_gpio_table = {
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.dev_id = "s3c24xx_led.1",
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.table = {
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GPIO_LOOKUP("GPB", 0, NULL, GPIO_ACTIVE_HIGH),
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{ },
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},
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};
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static struct gpiod_lookup_table vr1000_led2_gpio_table = {
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.dev_id = "s3c24xx_led.2",
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.table = {
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GPIO_LOOKUP("GPB", 1, NULL, GPIO_ACTIVE_HIGH),
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{ },
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},
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};
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static struct gpiod_lookup_table vr1000_led3_gpio_table = {
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.dev_id = "s3c24xx_led.3",
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.table = {
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GPIO_LOOKUP("GPB", 2, NULL, GPIO_ACTIVE_HIGH),
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{ },
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},
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};
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static struct s3c24xx_led_platdata vr1000_led1_pdata = {
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.name = "led1",
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.def_trigger = "",
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};
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static struct s3c24xx_led_platdata vr1000_led2_pdata = {
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.name = "led2",
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.def_trigger = "",
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};
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static struct s3c24xx_led_platdata vr1000_led3_pdata = {
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.name = "led3",
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.def_trigger = "",
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};
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static struct platform_device vr1000_led1 = {
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.name = "s3c24xx_led",
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.id = 1,
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.dev = {
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.platform_data = &vr1000_led1_pdata,
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},
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};
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static struct platform_device vr1000_led2 = {
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.name = "s3c24xx_led",
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.id = 2,
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.dev = {
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.platform_data = &vr1000_led2_pdata,
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},
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};
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static struct platform_device vr1000_led3 = {
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.name = "s3c24xx_led",
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.id = 3,
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.dev = {
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.platform_data = &vr1000_led3_pdata,
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},
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};
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/* I2C devices. */
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static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
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{
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I2C_BOARD_INFO("tlv320aic23", 0x1a),
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}, {
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I2C_BOARD_INFO("tmp101", 0x48),
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}, {
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I2C_BOARD_INFO("m41st87", 0x68),
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},
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};
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/* devices for this board */
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static struct platform_device *vr1000_devices[] __initdata = {
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&s3c2410_device_dclk,
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&s3c_device_ohci,
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&s3c_device_lcd,
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&s3c_device_wdt,
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&s3c_device_i2c0,
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&s3c_device_adc,
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&serial_device,
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&vr1000_dm9k0,
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&vr1000_dm9k1,
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&vr1000_led1,
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&vr1000_led2,
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&vr1000_led3,
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};
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static void vr1000_power_off(void)
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{
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gpio_direction_output(S3C2410_GPB(9), 1);
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}
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static void __init vr1000_map_io(void)
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{
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pm_power_off = vr1000_power_off;
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s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
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s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
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s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
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}
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static void __init vr1000_init_time(void)
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{
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s3c2410_init_clocks(12000000);
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s3c24xx_timer_init();
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}
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static void __init vr1000_init(void)
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{
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s3c_i2c0_set_platdata(NULL);
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/* Disable pull-up on LED lines and register GPIO lookups */
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s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
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s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_NONE);
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s3c_gpio_setpull(S3C2410_GPB(2), S3C_GPIO_PULL_NONE);
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gpiod_add_lookup_table(&vr1000_led1_gpio_table);
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gpiod_add_lookup_table(&vr1000_led2_gpio_table);
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gpiod_add_lookup_table(&vr1000_led3_gpio_table);
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platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
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i2c_register_board_info(0, vr1000_i2c_devs,
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ARRAY_SIZE(vr1000_i2c_devs));
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nor_simtec_init();
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simtec_audio_add(NULL, true, NULL);
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WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
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}
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MACHINE_START(VR1000, "Thorcom-VR1000")
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/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
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.atag_offset = 0x100,
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.nr_irqs = NR_IRQS_S3C2410,
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.map_io = vr1000_map_io,
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.init_machine = vr1000_init,
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.init_irq = s3c2410_init_irq,
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.init_time = vr1000_init_time,
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MACHINE_END
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