--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003, 2004 Chris Dearman
+ * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
+ */
+#ifndef __ASM_MACH_MIPS_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_MIPS_CPU_FEATURE_OVERRIDES_H
+
+
+/*
+ * CPU feature overrides for MIPS boards
+ */
+#ifdef CONFIG_CPU_MIPS32
+#define cpu_has_tlb 1
+#define cpu_has_4kex 1
+#define cpu_has_4k_cache 1
+/* #define cpu_has_fpu ? */
+/* #define cpu_has_32fpr ? */
+#define cpu_has_counter 1
+/* #define cpu_has_watch ? */
+#define cpu_has_divec 1
+#define cpu_has_vce 0
+/* #define cpu_has_cache_cdex_p ? */
+/* #define cpu_has_cache_cdex_s ? */
+/* #define cpu_has_prefetch ? */
+#define cpu_has_mcheck 1
+/* #define cpu_has_ejtag ? */
+#ifdef CONFIG_CPU_HAS_LLSC
+#define cpu_has_llsc 1
+#else
+#define cpu_has_llsc 0
+#endif
+/* #define cpu_has_vtag_icache ? */
+/* #define cpu_has_dc_aliases ? */
+/* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_nofpuex 0
+/* #define cpu_has_64bits ? */
+/* #define cpu_has_64bit_zero_reg ? */
+/* #define cpu_has_inclusive_pcaches ? */
+#define cpu_icache_snoops_remote_store 1
+#endif
+
+#ifdef CONFIG_CPU_MIPS64
+#define cpu_has_tlb 1
+#define cpu_has_4kex 1
+#define cpu_has_4k_cache 1
+/* #define cpu_has_fpu ? */
+/* #define cpu_has_32fpr ? */
+#define cpu_has_counter 1
+/* #define cpu_has_watch ? */
+#define cpu_has_divec 1
+#define cpu_has_vce 0
+/* #define cpu_has_cache_cdex_p ? */
+/* #define cpu_has_cache_cdex_s ? */
+/* #define cpu_has_prefetch ? */
+#define cpu_has_mcheck 1
+/* #define cpu_has_ejtag ? */
+#define cpu_has_llsc 1
+/* #define cpu_has_vtag_icache ? */
+/* #define cpu_has_dc_aliases ? */
+/* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_nofpuex 0
+/* #define cpu_has_64bits ? */
+/* #define cpu_has_64bit_zero_reg ? */
+/* #define cpu_has_inclusive_pcaches ? */
+#define cpu_icache_snoops_remote_store 1
+#endif
+
+#endif /* __ASM_MACH_MIPS_CPU_FEATURE_OVERRIDES_H */
--- /dev/null
+#ifndef __ASM_MACH_MIPS_IRQ_H
+#define __ASM_MACH_MIPS_IRQ_H
+
+#define NR_IRQS 256
+
+
+#include_next <irq.h>
+
+#endif /* __ASM_MACH_MIPS_IRQ_H */
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Chris Dearman (chris@mips.com)
+ * Copyright (C) 2007 Mips Technologies, Inc.
+ */
+#ifndef __ASM_MACH_MIPS_KERNEL_ENTRY_INIT_H
+#define __ASM_MACH_MIPS_KERNEL_ENTRY_INIT_H
+
+ .macro kernel_entry_setup
+#ifdef CONFIG_MIPS_MT_SMTC
+ mfc0 t0, CP0_CONFIG
+ bgez t0, 9f
+ mfc0 t0, CP0_CONFIG, 1
+ bgez t0, 9f
+ mfc0 t0, CP0_CONFIG, 2
+ bgez t0, 9f
+ mfc0 t0, CP0_CONFIG, 3
+ and t0, 1<<2
+ bnez t0, 0f
+9 :
+ /* Assume we came from YAMON... */
+ PTR_LA v0, 0x9fc00534 /* YAMON print */
+ lw v0, (v0)
+ move a0, zero
+ PTR_LA a1, nonmt_processor
+ jal v0
+
+ PTR_LA v0, 0x9fc00520 /* YAMON exit */
+ lw v0, (v0)
+ li a0, 1
+ jal v0
+
+1 : b 1b
+
+ __INITDATA
+nonmt_processor :
+ .asciz "SMTC kernel requires the MT ASE to run\n"
+ __FINIT
+0 :
+#endif
+ .endm
+
+/*
+ * Do SMP slave processor setup necessary before we can safely execute C code.
+ */
+ .macro smp_slave_setup
+ .endm
+
+#endif /* __ASM_MACH_MIPS_KERNEL_ENTRY_INIT_H */
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org>
+ */
+#ifndef __ASM_MIPS_MACH_MIPS_WAR_H
+#define __ASM_MIPS_MACH_MIPS_WAR_H
+
+#define R4600_V1_INDEX_ICACHEOP_WAR 0
+#define R4600_V1_HIT_CACHEOP_WAR 0
+#define R4600_V2_HIT_CACHEOP_WAR 0
+#define R5432_CP0_INTERRUPT_WAR 0
+#define BCM1250_M3_WAR 0
+#define SIBYTE_1956_WAR 0
+#define MIPS4K_ICACHE_REFILL_WAR 1
+#define MIPS_CACHE_SYNC_WAR 1
+#define TX49XX_ICACHE_INDEX_INV_WAR 0
+#define RM9000_CDEX_SMP_WAR 0
+#define ICACHE_REFILLS_WORKAROUND_WAR 1
+#define R10000_LLSC_WAR 0
+#define MIPS34K_MISSED_ITLB_WAR 0
+
+#endif /* __ASM_MIPS_MACH_MIPS_WAR_H */
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000,2012 MIPS Technologies, Inc. All rights reserved.
+ * Douglas Leung <douglas@mips.com>
+ * Steven J. Hill <sjhill@mips.com>
+ */
+#ifndef _MIPS_SEAD3INT_H
+#define _MIPS_SEAD3INT_H
+
+/* SEAD-3 GIC address space definitions. */
+#define GIC_BASE_ADDR 0x1b1c0000
+#define GIC_ADDRSPACE_SZ (128 * 1024)
+
+#define MIPS_GIC_IRQ_BASE (MIPS_CPU_IRQ_BASE + 0)
+
+#endif /* !(_MIPS_SEAD3INT_H) */
--- /dev/null
+#
+# Carsten Langgaard, carstenl@mips.com
+# Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+#
+# Copyright (C) 2008 Wind River Systems, Inc.
+# written by Ralf Baechle <ralf@linux-mips.org>
+#
+obj-y := sead3-lcd.o sead3-cmdline.o \
+ sead3-display.o sead3-init.o sead3-int.o \
+ sead3-mtd.o sead3-net.o \
+ sead3-memory.o sead3-platform.o \
+ sead3-reset.o sead3-setup.o sead3-time.o
+
+obj-y += sead3-i2c-dev.o sead3-i2c.o \
+ sead3-pic32-i2c-drv.o sead3-pic32-bus.o \
+ leds-sead3.o sead3-leds.o
+
+obj-$(CONFIG_EARLY_PRINTK) += sead3-console.o
+obj-$(CONFIG_USB_EHCI_HCD) += sead3-ehci.o
--- /dev/null
+#
+# MIPS SEAD-3 board
+#
+platform-$(CONFIG_MIPS_SEAD3) += mti-sead3/
+cflags-$(CONFIG_MIPS_SEAD3) += -I$(srctree)/arch/mips/include/asm/mach-sead3
+load-$(CONFIG_MIPS_SEAD3) += 0xffffffff80100000
+all-$(CONFIG_MIPS_SEAD3) := $(COMPRESSION_FNAME).srec
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#define DRVNAME "sead3-led"
+
+static struct platform_device *pdev;
+
+static void sead3_pled_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ pr_debug("sead3_pled_set\n");
+ writel(value, (void __iomem *)0xBF000210); /* FIXME */
+}
+
+static void sead3_fled_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ pr_debug("sead3_fled_set\n");
+ writel(value, (void __iomem *)0xBF000218); /* FIXME */
+}
+
+static struct led_classdev sead3_pled = {
+ .name = "sead3::pled",
+ .brightness_set = sead3_pled_set,
+};
+
+static struct led_classdev sead3_fled = {
+ .name = "sead3::fled",
+ .brightness_set = sead3_fled_set,
+};
+
+#ifdef CONFIG_PM
+static int sead3_led_suspend(struct platform_device *dev,
+ pm_message_t state)
+{
+ led_classdev_suspend(&sead3_pled);
+ led_classdev_suspend(&sead3_fled);
+ return 0;
+}
+
+static int sead3_led_resume(struct platform_device *dev)
+{
+ led_classdev_resume(&sead3_pled);
+ led_classdev_resume(&sead3_fled);
+ return 0;
+}
+#else
+#define sead3_led_suspend NULL
+#define sead3_led_resume NULL
+#endif
+
+static int sead3_led_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ ret = led_classdev_register(&pdev->dev, &sead3_pled);
+ if (ret < 0)
+ return ret;
+
+ ret = led_classdev_register(&pdev->dev, &sead3_fled);
+ if (ret < 0)
+ led_classdev_unregister(&sead3_pled);
+
+ return ret;
+}
+
+static int sead3_led_remove(struct platform_device *pdev)
+{
+ led_classdev_unregister(&sead3_pled);
+ led_classdev_unregister(&sead3_fled);
+ return 0;
+}
+
+static struct platform_driver sead3_led_driver = {
+ .probe = sead3_led_probe,
+ .remove = sead3_led_remove,
+ .suspend = sead3_led_suspend,
+ .resume = sead3_led_resume,
+ .driver = {
+ .name = DRVNAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init sead3_led_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&sead3_led_driver);
+ if (ret < 0)
+ goto out;
+
+ pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
+ if (IS_ERR(pdev)) {
+ ret = PTR_ERR(pdev);
+ platform_driver_unregister(&sead3_led_driver);
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
+static void __exit sead3_led_exit(void)
+{
+ platform_device_unregister(pdev);
+ platform_driver_unregister(&sead3_led_driver);
+}
+
+module_init(sead3_led_init);
+module_exit(sead3_led_exit);
+
+MODULE_AUTHOR("Kristian Kielhofner <kris@krisk.org>");
+MODULE_DESCRIPTION("SEAD3 LED driver");
+MODULE_LICENSE("GPL");
+
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+
+extern int prom_argc;
+extern int *_prom_argv;
+
+/*
+ * YAMON (32-bit PROM) pass arguments and environment as 32-bit pointer.
+ * This macro take care of sign extension.
+ */
+#define prom_argv(index) ((char *)(long)_prom_argv[(index)])
+
+char * __init prom_getcmdline(void)
+{
+ return &(arcs_cmdline[0]);
+}
+
+void __init prom_init_cmdline(void)
+{
+ char *cp;
+ int actr;
+
+ actr = 1; /* Always ignore argv[0] */
+
+ cp = &(arcs_cmdline[0]);
+ while (actr < prom_argc) {
+ strcpy(cp, prom_argv(actr));
+ cp += strlen(prom_argv(actr));
+ *cp++ = ' ';
+ actr++;
+ }
+ if (cp != &(arcs_cmdline[0])) {
+ /* get rid of trailing space */
+ --cp;
+ *cp = '\0';
+ }
+}
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/serial_reg.h>
+#include <linux/io.h>
+
+#define SEAD_UART1_REGS_BASE 0xbf000800 /* ttyS1 = DB9 port */
+#define SEAD_UART0_REGS_BASE 0xbf000900 /* ttyS0 = USB port */
+#define PORT(base_addr, offset) ((unsigned int __iomem *)(base_addr+(offset)*4))
+
+static char console_port = 1;
+
+static inline unsigned int serial_in(int offset, unsigned int base_addr)
+{
+ return __raw_readl(PORT(base_addr, offset)) & 0xff;
+}
+
+static inline void serial_out(int offset, int value, unsigned int base_addr)
+{
+ __raw_writel(value, PORT(base_addr, offset));
+}
+
+void __init prom_init_early_console(char port)
+{
+ console_port = port;
+}
+
+int prom_putchar(char c)
+{
+ unsigned int base_addr;
+
+ base_addr = console_port ? SEAD_UART1_REGS_BASE : SEAD_UART0_REGS_BASE;
+
+ while ((serial_in(UART_LSR, base_addr) & UART_LSR_THRE) == 0)
+ ;
+
+ serial_out(UART_TX, c, base_addr);
+
+ return 1;
+}
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/timer.h>
+#include <linux/io.h>
+#include <asm/mips-boards/generic.h>
+#include <asm/mips-boards/prom.h>
+
+static unsigned int display_count;
+static unsigned int max_display_count;
+
+#define LCD_DISPLAY_POS_BASE 0x1f000400
+#define DISPLAY_LCDINSTRUCTION (0*2)
+#define DISPLAY_LCDDATA (1*2)
+#define DISPLAY_CPLDSTATUS (2*2)
+#define DISPLAY_CPLDDATA (3*2)
+#define LCD_SETDDRAM 0x80
+#define LCD_IR_BF 0x80
+
+const char display_string[] = " LINUX ON SEAD3 ";
+
+static void scroll_display_message(unsigned long data);
+static DEFINE_TIMER(mips_scroll_timer, scroll_display_message, HZ, 0);
+
+static void lcd_wait(unsigned int __iomem *display)
+{
+ /* Wait for CPLD state machine to become idle. */
+ do { } while (__raw_readl(display + DISPLAY_CPLDSTATUS) & 1);
+
+ do {
+ __raw_readl(display + DISPLAY_LCDINSTRUCTION);
+
+ /* Wait for CPLD state machine to become idle. */
+ do { } while (__raw_readl(display + DISPLAY_CPLDSTATUS) & 1);
+ } while (__raw_readl(display + DISPLAY_CPLDDATA) & LCD_IR_BF);
+}
+
+void mips_display_message(const char *str)
+{
+ static unsigned int __iomem *display;
+ char ch;
+ int i;
+
+ if (unlikely(display == NULL))
+ display = ioremap_nocache(LCD_DISPLAY_POS_BASE,
+ (8 * sizeof(int)));
+
+ for (i = 0; i < 16; i++) {
+ if (*str)
+ ch = *str++;
+ else
+ ch = ' ';
+ lcd_wait(display);
+ __raw_writel((LCD_SETDDRAM | i),
+ (display + DISPLAY_LCDINSTRUCTION));
+ lcd_wait(display);
+ __raw_writel(ch, display + DISPLAY_LCDDATA);
+ }
+}
+
+static void scroll_display_message(unsigned long data)
+{
+ mips_display_message(&display_string[display_count++]);
+ if (display_count == max_display_count)
+ display_count = 0;
+ mod_timer(&mips_scroll_timer, jiffies + HZ);
+}
+
+void mips_scroll_message(void)
+{
+ del_timer_sync(&mips_scroll_timer);
+ max_display_count = strlen(display_string) + 1 - 16;
+ mod_timer(&mips_scroll_timer, jiffies + 1);
+}
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/module.h>
+#include <linux/irq.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+
+struct resource ehci_resources[] = {
+ {
+ .start = 0x1b200000,
+ .end = 0x1b200fff,
+ .flags = IORESOURCE_MEM
+ },
+ {
+ .start = MIPS_CPU_IRQ_BASE + 2,
+ .flags = IORESOURCE_IRQ
+ }
+};
+
+u64 sead3_usbdev_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device ehci_device = {
+ .name = "sead3-ehci",
+ .id = 0,
+ .dev = {
+ .dma_mask = &sead3_usbdev_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32)
+ },
+ .num_resources = ARRAY_SIZE(ehci_resources),
+ .resource = ehci_resources
+};
+
+static int __init ehci_init(void)
+{
+ return platform_device_register(&ehci_device);
+}
+
+module_init(ehci_init);
+
+MODULE_AUTHOR("Chris Dearman <chris@mips.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("EHCI probe driver for SEAD3");
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/init.h>
+#include <linux/i2c.h>
+
+static struct i2c_board_info __initdata sead3_i2c_devices[] = {
+ {
+ I2C_BOARD_INFO("adt7476", 0x2c),
+ .irq = 0,
+ },
+ {
+ I2C_BOARD_INFO("m41t80", 0x68),
+ .irq = 0,
+ },
+};
+
+static int __init sead3_i2c_init(void)
+{
+ int err;
+
+ err = i2c_register_board_info(0, sead3_i2c_devices,
+ ARRAY_SIZE(sead3_i2c_devices));
+ if (err < 0)
+ pr_err("sead3-i2c-dev: cannot register board I2C devices\n");
+ return err;
+}
+
+arch_initcall(sead3_i2c_init);
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+
+#define PIC32_I2CxCON 0x0000
+#define PIC32_I2CCON_ON (1<<15)
+#define PIC32_I2CCON_ACKDT (1<<5)
+#define PIC32_I2CCON_ACKEN (1<<4)
+#define PIC32_I2CCON_RCEN (1<<3)
+#define PIC32_I2CCON_PEN (1<<2)
+#define PIC32_I2CCON_RSEN (1<<1)
+#define PIC32_I2CCON_SEN (1<<0)
+#define PIC32_I2CxCONCLR 0x0004
+#define PIC32_I2CxCONSET 0x0008
+#define PIC32_I2CxSTAT 0x0010
+#define PIC32_I2CxSTATCLR 0x0014
+#define PIC32_I2CSTAT_ACKSTAT (1<<15)
+#define PIC32_I2CSTAT_TRSTAT (1<<14)
+#define PIC32_I2CSTAT_BCL (1<<10)
+#define PIC32_I2CSTAT_IWCOL (1<<7)
+#define PIC32_I2CSTAT_I2COV (1<<6)
+#define PIC32_I2CxBRG 0x0040
+#define PIC32_I2CxTRN 0x0050
+#define PIC32_I2CxRCV 0x0060
+
+static DEFINE_SPINLOCK(pic32_bus_lock);
+
+static void __iomem *bus_xfer = (void __iomem *)0xbf000600;
+static void __iomem *bus_status = (void __iomem *)0xbf000060;
+
+#define DELAY() udelay(100)
+
+static inline unsigned int ioready(void)
+{
+ return readl(bus_status) & 1;
+}
+
+static inline void wait_ioready(void)
+{
+ do { } while (!ioready());
+}
+
+static inline void wait_ioclear(void)
+{
+ do { } while (ioready());
+}
+
+static inline void check_ioclear(void)
+{
+ if (ioready()) {
+ do {
+ (void) readl(bus_xfer);
+ DELAY();
+ } while (ioready());
+ }
+}
+
+static u32 pic32_bus_readl(u32 reg)
+{
+ unsigned long flags;
+ u32 status, val;
+
+ spin_lock_irqsave(&pic32_bus_lock, flags);
+
+ check_ioclear();
+ writel((0x01 << 24) | (reg & 0x00ffffff), bus_xfer);
+ DELAY();
+ wait_ioready();
+ status = readl(bus_xfer);
+ DELAY();
+ val = readl(bus_xfer);
+ wait_ioclear();
+
+ spin_unlock_irqrestore(&pic32_bus_lock, flags);
+
+ return val;
+}
+
+static void pic32_bus_writel(u32 val, u32 reg)
+{
+ unsigned long flags;
+ u32 status;
+
+ spin_lock_irqsave(&pic32_bus_lock, flags);
+
+ check_ioclear();
+ writel((0x10 << 24) | (reg & 0x00ffffff), bus_xfer);
+ DELAY();
+ writel(val, bus_xfer);
+ DELAY();
+ wait_ioready();
+ status = readl(bus_xfer);
+ wait_ioclear();
+
+ spin_unlock_irqrestore(&pic32_bus_lock, flags);
+}
+
+struct pic32_i2c_platform_data {
+ u32 base;
+ struct i2c_adapter adap;
+ u32 xfer_timeout;
+ u32 ack_timeout;
+ u32 ctl_timeout;
+};
+
+static inline void pic32_i2c_start(struct pic32_i2c_platform_data *adap)
+{
+ pic32_bus_writel(PIC32_I2CCON_SEN, adap->base + PIC32_I2CxCONSET);
+}
+
+static inline void pic32_i2c_stop(struct pic32_i2c_platform_data *adap)
+{
+ pic32_bus_writel(PIC32_I2CCON_PEN, adap->base + PIC32_I2CxCONSET);
+}
+
+static inline void pic32_i2c_ack(struct pic32_i2c_platform_data *adap)
+{
+ pic32_bus_writel(PIC32_I2CCON_ACKDT, adap->base + PIC32_I2CxCONCLR);
+ pic32_bus_writel(PIC32_I2CCON_ACKEN, adap->base + PIC32_I2CxCONSET);
+}
+
+static inline void pic32_i2c_nack(struct pic32_i2c_platform_data *adap)
+{
+ pic32_bus_writel(PIC32_I2CCON_ACKDT, adap->base + PIC32_I2CxCONSET);
+ pic32_bus_writel(PIC32_I2CCON_ACKEN, adap->base + PIC32_I2CxCONSET);
+}
+
+static inline int pic32_i2c_idle(struct pic32_i2c_platform_data *adap)
+{
+ int i;
+
+ for (i = 0; i < adap->ctl_timeout; i++) {
+ if (((pic32_bus_readl(adap->base + PIC32_I2CxCON) &
+ (PIC32_I2CCON_ACKEN | PIC32_I2CCON_RCEN |
+ PIC32_I2CCON_PEN | PIC32_I2CCON_RSEN |
+ PIC32_I2CCON_SEN)) == 0) &&
+ ((pic32_bus_readl(adap->base + PIC32_I2CxSTAT) &
+ (PIC32_I2CSTAT_TRSTAT)) == 0))
+ return 0;
+ udelay(1);
+ }
+ return -ETIMEDOUT;
+}
+
+static inline u32 pic32_i2c_master_write(struct pic32_i2c_platform_data *adap,
+ u32 byte)
+{
+ pic32_bus_writel(byte, adap->base + PIC32_I2CxTRN);
+ return pic32_bus_readl(adap->base + PIC32_I2CxSTAT) &
+ PIC32_I2CSTAT_IWCOL;
+}
+
+static inline u32 pic32_i2c_master_read(struct pic32_i2c_platform_data *adap)
+{
+ pic32_bus_writel(PIC32_I2CCON_RCEN, adap->base + PIC32_I2CxCONSET);
+ while (pic32_bus_readl(adap->base + PIC32_I2CxCON) & PIC32_I2CCON_RCEN)
+ ;
+ pic32_bus_writel(PIC32_I2CSTAT_I2COV, adap->base + PIC32_I2CxSTATCLR);
+ return pic32_bus_readl(adap->base + PIC32_I2CxRCV);
+}
+
+static int pic32_i2c_address(struct pic32_i2c_platform_data *adap,
+ unsigned int addr, int rd)
+{
+ pic32_i2c_idle(adap);
+ pic32_i2c_start(adap);
+ pic32_i2c_idle(adap);
+
+ addr <<= 1;
+ if (rd)
+ addr |= 1;
+
+ if (pic32_i2c_master_write(adap, addr))
+ return -EIO;
+ pic32_i2c_idle(adap);
+ if (pic32_bus_readl(adap->base + PIC32_I2CxSTAT) &
+ PIC32_I2CSTAT_ACKSTAT)
+ return -EIO;
+ return 0;
+}
+
+static int sead3_i2c_read(struct pic32_i2c_platform_data *adap,
+ unsigned char *buf, unsigned int len)
+{
+ u32 data;
+ int i;
+
+ i = 0;
+ while (i < len) {
+ data = pic32_i2c_master_read(adap);
+ buf[i++] = data;
+ if (i < len)
+ pic32_i2c_ack(adap);
+ else
+ pic32_i2c_nack(adap);
+ }
+
+ pic32_i2c_stop(adap);
+ pic32_i2c_idle(adap);
+ return 0;
+}
+
+static int sead3_i2c_write(struct pic32_i2c_platform_data *adap,
+ unsigned char *buf, unsigned int len)
+{
+ int i;
+ u32 data;
+
+ i = 0;
+ while (i < len) {
+ data = buf[i];
+ if (pic32_i2c_master_write(adap, data))
+ return -EIO;
+ pic32_i2c_idle(adap);
+ if (pic32_bus_readl(adap->base + PIC32_I2CxSTAT) &
+ PIC32_I2CSTAT_ACKSTAT)
+ return -EIO;
+ i++;
+ }
+
+ pic32_i2c_stop(adap);
+ pic32_i2c_idle(adap);
+ return 0;
+}
+
+static int sead3_pic32_platform_xfer(struct i2c_adapter *i2c_adap,
+ struct i2c_msg *msgs, int num)
+{
+ struct pic32_i2c_platform_data *adap = i2c_adap->algo_data;
+ struct i2c_msg *p;
+ int i, err = 0;
+
+ for (i = 0; i < num; i++) {
+#define __BUFSIZE 80
+ int ii;
+ static char buf[__BUFSIZE];
+ char *b = buf;
+
+ p = &msgs[i];
+ b += sprintf(buf, " [%d bytes]", p->len);
+ if ((p->flags & I2C_M_RD) == 0) {
+ for (ii = 0; ii < p->len; ii++) {
+ if (b < &buf[__BUFSIZE-4]) {
+ b += sprintf(b, " %02x", p->buf[ii]);
+ } else {
+ strcat(b, "...");
+ break;
+ }
+ }
+ }
+ }
+
+ for (i = 0; !err && i < num; i++) {
+ p = &msgs[i];
+ err = pic32_i2c_address(adap, p->addr, p->flags & I2C_M_RD);
+ if (err || !p->len)
+ continue;
+ if (p->flags & I2C_M_RD)
+ err = sead3_i2c_read(adap, p->buf, p->len);
+ else
+ err = sead3_i2c_write(adap, p->buf, p->len);
+ }
+
+ /* Return the number of messages processed, or the error code. */
+ if (err == 0)
+ err = num;
+
+ return err;
+}
+
+static u32 sead3_pic32_platform_func(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm sead3_platform_algo = {
+ .master_xfer = sead3_pic32_platform_xfer,
+ .functionality = sead3_pic32_platform_func,
+};
+
+static void sead3_i2c_platform_setup(struct pic32_i2c_platform_data *priv)
+{
+ pic32_bus_writel(500, priv->base + PIC32_I2CxBRG);
+ pic32_bus_writel(PIC32_I2CCON_ON, priv->base + PIC32_I2CxCONCLR);
+ pic32_bus_writel(PIC32_I2CCON_ON, priv->base + PIC32_I2CxCONSET);
+ pic32_bus_writel(PIC32_I2CSTAT_BCL | PIC32_I2CSTAT_IWCOL,
+ priv->base + PIC32_I2CxSTATCLR);
+}
+
+static int __devinit sead3_i2c_platform_probe(struct platform_device *pdev)
+{
+ struct pic32_i2c_platform_data *priv;
+ struct resource *r;
+ int ret;
+
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!r) {
+ ret = -ENODEV;
+ goto out;
+ }
+
+ priv = kzalloc(sizeof(struct pic32_i2c_platform_data), GFP_KERNEL);
+ if (!priv) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ priv->base = r->start;
+ if (!priv->base) {
+ ret = -EBUSY;
+ goto out_mem;
+ }
+
+ priv->xfer_timeout = 200;
+ priv->ack_timeout = 200;
+ priv->ctl_timeout = 200;
+
+ priv->adap.nr = pdev->id;
+ priv->adap.algo = &sead3_platform_algo;
+ priv->adap.algo_data = priv;
+ priv->adap.dev.parent = &pdev->dev;
+ strlcpy(priv->adap.name, "SEAD3 PIC32", sizeof(priv->adap.name));
+
+ sead3_i2c_platform_setup(priv);
+
+ ret = i2c_add_numbered_adapter(&priv->adap);
+ if (ret == 0) {
+ platform_set_drvdata(pdev, priv);
+ return 0;
+ }
+
+out_mem:
+ kfree(priv);
+out:
+ return ret;
+}
+
+static int __devexit sead3_i2c_platform_remove(struct platform_device *pdev)
+{
+ struct pic32_i2c_platform_data *priv = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ i2c_del_adapter(&priv->adap);
+ kfree(priv);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int sead3_i2c_platform_suspend(struct platform_device *pdev,
+ pm_message_t state)
+{
+ dev_dbg(&pdev->dev, "i2c_platform_disable\n");
+ return 0;
+}
+
+static int sead3_i2c_platform_resume(struct platform_device *pdev)
+{
+ struct pic32_i2c_platform_data *priv = platform_get_drvdata(pdev);
+
+ dev_dbg(&pdev->dev, "sead3_i2c_platform_setup\n");
+ sead3_i2c_platform_setup(priv);
+
+ return 0;
+}
+#else
+#define sead3_i2c_platform_suspend NULL
+#define sead3_i2c_platform_resume NULL
+#endif
+
+static struct platform_driver sead3_i2c_platform_driver = {
+ .driver = {
+ .name = "sead3-i2c",
+ .owner = THIS_MODULE,
+ },
+ .probe = sead3_i2c_platform_probe,
+ .remove = __devexit_p(sead3_i2c_platform_remove),
+ .suspend = sead3_i2c_platform_suspend,
+ .resume = sead3_i2c_platform_resume,
+};
+
+static int __init sead3_i2c_platform_init(void)
+{
+ return platform_driver_register(&sead3_i2c_platform_driver);
+}
+module_init(sead3_i2c_platform_init);
+
+static void __exit sead3_i2c_platform_exit(void)
+{
+ platform_driver_unregister(&sead3_i2c_platform_driver);
+}
+module_exit(sead3_i2c_platform_exit);
+
+MODULE_AUTHOR("Chris Dearman, MIPS Technologies INC.");
+MODULE_DESCRIPTION("SEAD3 PIC32 I2C driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <irq.h>
+
+struct resource sead3_i2c_resources[] = {
+ {
+ .start = 0x805200,
+ .end = 0x8053ff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device sead3_i2c_device = {
+ .name = "sead3-i2c",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(sead3_i2c_resources),
+ .resource = sead3_i2c_resources,
+};
+
+static int __init sead3_i2c_init(void)
+{
+ return platform_device_register(&sead3_i2c_device);
+}
+
+module_init(sead3_i2c_init);
+
+MODULE_AUTHOR("Chris Dearman <chris@mips.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("I2C probe driver for SEAD3");
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/init.h>
+#include <linux/io.h>
+
+#include <asm/bootinfo.h>
+#include <asm/cacheflush.h>
+#include <asm/traps.h>
+#include <asm/mips-boards/generic.h>
+#include <asm/mips-boards/prom.h>
+
+extern void prom_init_early_console(char port);
+
+extern char except_vec_nmi;
+extern char except_vec_ejtag_debug;
+
+int prom_argc;
+int *_prom_argv, *_prom_envp;
+
+#define prom_envp(index) ((char *)(long)_prom_envp[(index)])
+
+char *prom_getenv(char *envname)
+{
+ /*
+ * Return a pointer to the given environment variable.
+ * In 64-bit mode: we're using 64-bit pointers, but all pointers
+ * in the PROM structures are only 32-bit, so we need some
+ * workarounds, if we are running in 64-bit mode.
+ */
+ int i, index = 0;
+
+ i = strlen(envname);
+
+ while (prom_envp(index)) {
+ if (strncmp(envname, prom_envp(index), i) == 0)
+ return prom_envp(index+1);
+ index += 2;
+ }
+
+ return NULL;
+}
+
+static void __init mips_nmi_setup(void)
+{
+ void *base;
+
+ base = cpu_has_veic ?
+ (void *)(CAC_BASE + 0xa80) :
+ (void *)(CAC_BASE + 0x380);
+ memcpy(base, &except_vec_nmi, 0x80);
+ flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
+}
+
+static void __init mips_ejtag_setup(void)
+{
+ void *base;
+
+ base = cpu_has_veic ?
+ (void *)(CAC_BASE + 0xa00) :
+ (void *)(CAC_BASE + 0x300);
+ memcpy(base, &except_vec_ejtag_debug, 0x80);
+ flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
+}
+
+void __init prom_init(void)
+{
+ prom_argc = fw_arg0;
+ _prom_argv = (int *) fw_arg1;
+ _prom_envp = (int *) fw_arg2;
+
+ board_nmi_handler_setup = mips_nmi_setup;
+ board_ejtag_handler_setup = mips_ejtag_setup;
+
+ prom_init_cmdline();
+ prom_meminit();
+#ifdef CONFIG_EARLY_PRINTK
+ if ((strstr(prom_getcmdline(), "console=ttyS0")) != NULL)
+ prom_init_early_console(0);
+ else if ((strstr(prom_getcmdline(), "console=ttyS1")) != NULL)
+ prom_init_early_console(1);
+#endif
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+ if ((strstr(prom_getcmdline(), "console=")) == NULL)
+ strcat(prom_getcmdline(), " console=ttyS0,38400n8r");
+#endif
+}
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+
+#include <asm/gic.h>
+#include <asm/irq_cpu.h>
+#include <asm/setup.h>
+
+#include <asm/mips-boards/sead3int.h>
+
+#define SEAD_CONFIG_GIC_PRESENT_SHF 1
+#define SEAD_CONFIG_GIC_PRESENT_MSK (1 << SEAD_CONFIG_GIC_PRESENT_SHF)
+#define SEAD_CONFIG_BASE 0x1b100110
+#define SEAD_CONFIG_SIZE 4
+
+int gic_present;
+static unsigned long sead3_config_reg;
+
+/*
+ * This table defines the setup for each external GIC interrupt. It is
+ * indexed by interrupt number.
+ */
+#define GIC_CPU_NMI GIC_MAP_TO_NMI_MSK
+static struct gic_intr_map gic_intr_map[GIC_NUM_INTRS] = {
+ { 0, GIC_CPU_INT4, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT },
+ { 0, GIC_CPU_INT3, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT },
+ { 0, GIC_CPU_INT2, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT },
+ { 0, GIC_CPU_INT2, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT },
+ { 0, GIC_CPU_INT1, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT },
+ { 0, GIC_CPU_INT0, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT },
+ { 0, GIC_CPU_INT0, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT },
+ { 0, GIC_CPU_INT0, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT },
+ { 0, GIC_CPU_INT0, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT },
+ { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED },
+ { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED },
+ { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED },
+ { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED },
+ { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED },
+ { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED },
+ { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED },
+};
+
+asmlinkage void plat_irq_dispatch(void)
+{
+ unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
+ int irq;
+
+ irq = (fls(pending) - CAUSEB_IP - 1);
+ if (irq >= 0)
+ do_IRQ(MIPS_CPU_IRQ_BASE + irq);
+ else
+ spurious_interrupt();
+}
+
+void __init arch_init_irq(void)
+{
+ int i;
+
+ if (!cpu_has_veic) {
+ mips_cpu_irq_init();
+
+ if (cpu_has_vint) {
+ /* install generic handler */
+ for (i = 0; i < 8; i++)
+ set_vi_handler(i, plat_irq_dispatch);
+ }
+ }
+
+ sead3_config_reg = (unsigned long)ioremap_nocache(SEAD_CONFIG_BASE,
+ SEAD_CONFIG_SIZE);
+ gic_present = (REG32(sead3_config_reg) & SEAD_CONFIG_GIC_PRESENT_MSK) >>
+ SEAD_CONFIG_GIC_PRESENT_SHF;
+ pr_info("GIC: %spresent\n", (gic_present) ? "" : "not ");
+ pr_info("EIC: %s\n",
+ (current_cpu_data.options & MIPS_CPU_VEIC) ? "on" : "off");
+
+ if (gic_present)
+ gic_init(GIC_BASE_ADDR, GIC_ADDRSPACE_SZ, gic_intr_map,
+ ARRAY_SIZE(gic_intr_map), MIPS_GIC_IRQ_BASE);
+}
+
+void gic_enable_interrupt(int irq_vec)
+{
+ unsigned int i, irq_source;
+
+ /* enable all the interrupts associated with this vector */
+ for (i = 0; i < gic_shared_intr_map[irq_vec].num_shared_intr; i++) {
+ irq_source = gic_shared_intr_map[irq_vec].intr_list[i];
+ GIC_SET_INTR_MASK(irq_source);
+ }
+ /* enable all local interrupts associated with this vector */
+ if (gic_shared_intr_map[irq_vec].local_intr_mask) {
+ GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR), 0);
+ GICWRITE(GIC_REG(VPE_OTHER, GIC_VPE_SMASK),
+ gic_shared_intr_map[irq_vec].local_intr_mask);
+ }
+}
+
+void gic_disable_interrupt(int irq_vec)
+{
+ unsigned int i, irq_source;
+
+ /* disable all the interrupts associated with this vector */
+ for (i = 0; i < gic_shared_intr_map[irq_vec].num_shared_intr; i++) {
+ irq_source = gic_shared_intr_map[irq_vec].intr_list[i];
+ GIC_CLR_INTR_MASK(irq_source);
+ }
+ /* disable all local interrupts associated with this vector */
+ if (gic_shared_intr_map[irq_vec].local_intr_mask) {
+ GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR), 0);
+ GICWRITE(GIC_REG(VPE_OTHER, GIC_VPE_RMASK),
+ gic_shared_intr_map[irq_vec].local_intr_mask);
+ }
+}
+
+void gic_irq_ack(struct irq_data *d)
+{
+ GIC_CLR_INTR_MASK(d->irq - gic_irq_base);
+}
+
+void gic_finish_irq(struct irq_data *d)
+{
+ unsigned int irq = (d->irq - gic_irq_base);
+ unsigned int i, irq_source;
+
+ /* Clear edge detectors. */
+ for (i = 0; i < gic_shared_intr_map[irq].num_shared_intr; i++) {
+ irq_source = gic_shared_intr_map[irq].intr_list[i];
+ if (gic_irq_flags[irq_source] & GIC_TRIG_EDGE)
+ GICWRITE(GIC_REG(SHARED, GIC_SH_WEDGE), irq_source);
+ }
+
+ /* Enable interrupts. */
+ GIC_SET_INTR_MASK(irq);
+}
+
+void __init gic_platform_init(int irqs, struct irq_chip *irq_controller)
+{
+ int i;
+
+ /*
+ * For non-EIC mode, we want to setup the GIC in pass-through
+ * mode, as if the GIC didn't exist. Do not map any interrupts
+ * for an external interrupt controller.
+ */
+ if (!cpu_has_veic)
+ return;
+
+ for (i = gic_irq_base; i < (gic_irq_base + irqs); i++)
+ irq_set_chip_and_handler(i, irq_controller, handle_percpu_irq);
+}
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+static struct resource __initdata sead3_lcd_resource = {
+ .start = 0x1f000400,
+ .end = 0x1f00041f,
+ .flags = IORESOURCE_MEM,
+};
+
+static __init int sead3_lcd_add(void)
+{
+ struct platform_device *pdev;
+ int retval;
+
+ /* SEAD-3 and Cobalt platforms use same display type. */
+ pdev = platform_device_alloc("cobalt-lcd", -1);
+ if (!pdev)
+ return -ENOMEM;
+
+ retval = platform_device_add_resources(pdev, &sead3_lcd_resource, 1);
+ if (retval)
+ goto err_free_device;
+
+ retval = platform_device_add(pdev);
+ if (retval)
+ goto err_free_device;
+
+ return 0;
+
+err_free_device:
+ platform_device_put(pdev);
+
+ return retval;
+}
+
+device_initcall(sead3_lcd_add);
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/module.h>
+#include <linux/leds.h>
+#include <linux/platform_device.h>
+
+#define LEDFLAGS(bits, shift) \
+ ((bits << 8) | (shift << 8))
+
+#define LEDBITS(id, shift, bits) \
+ .name = id #shift, \
+ .flags = LEDFLAGS(bits, shift)
+
+struct led_info led_data_info[] = {
+ { LEDBITS("bit", 0, 1) },
+ { LEDBITS("bit", 1, 1) },
+ { LEDBITS("bit", 2, 1) },
+ { LEDBITS("bit", 3, 1) },
+ { LEDBITS("bit", 4, 1) },
+ { LEDBITS("bit", 5, 1) },
+ { LEDBITS("bit", 6, 1) },
+ { LEDBITS("bit", 7, 1) },
+ { LEDBITS("all", 0, 8) },
+};
+
+static struct led_platform_data led_data = {
+ .num_leds = ARRAY_SIZE(led_data_info),
+ .leds = led_data_info
+};
+
+static struct resource pled_resources[] = {
+ {
+ .start = 0x1f000210,
+ .end = 0x1f000217,
+ .flags = IORESOURCE_MEM
+ }
+};
+
+static struct platform_device pled_device = {
+ .name = "sead3::pled",
+ .id = 0,
+ .dev = {
+ .platform_data = &led_data,
+ },
+ .num_resources = ARRAY_SIZE(pled_resources),
+ .resource = pled_resources
+};
+
+
+static struct resource fled_resources[] = {
+ {
+ .start = 0x1f000218,
+ .end = 0x1f00021f,
+ .flags = IORESOURCE_MEM
+ }
+};
+
+static struct platform_device fled_device = {
+ .name = "sead3::fled",
+ .id = 0,
+ .dev = {
+ .platform_data = &led_data,
+ },
+ .num_resources = ARRAY_SIZE(fled_resources),
+ .resource = fled_resources
+};
+
+static int __init led_init(void)
+{
+ platform_device_register(&pled_device);
+ return platform_device_register(&fled_device);
+}
+
+module_init(led_init);
+
+MODULE_AUTHOR("Chris Dearman <chris@mips.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("LED probe driver for SEAD-3");
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/bootmem.h>
+
+#include <asm/bootinfo.h>
+#include <asm/sections.h>
+#include <asm/mips-boards/prom.h>
+
+enum yamon_memtypes {
+ yamon_dontuse,
+ yamon_prom,
+ yamon_free,
+};
+
+static struct prom_pmemblock mdesc[PROM_MAX_PMEMBLOCKS];
+
+/* determined physical memory size, not overridden by command line args */
+unsigned long physical_memsize = 0L;
+
+struct prom_pmemblock * __init prom_getmdesc(void)
+{
+ char *memsize_str, *ptr;
+ unsigned int memsize;
+ static char cmdline[COMMAND_LINE_SIZE] __initdata;
+ long val;
+ int tmp;
+
+ /* otherwise look in the environment */
+ memsize_str = prom_getenv("memsize");
+ if (!memsize_str) {
+ pr_warn("memsize not set in boot prom, set to default 32Mb\n");
+ physical_memsize = 0x02000000;
+ } else {
+ tmp = kstrtol(memsize_str, 0, &val);
+ physical_memsize = (unsigned long)val;
+ }
+
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ /* SOC-it swaps, or perhaps doesn't swap, when DMA'ing the last
+ word of physical memory */
+ physical_memsize -= PAGE_SIZE;
+#endif
+
+ /* Check the command line for a memsize directive that overrides
+ the physical/default amount */
+ strcpy(cmdline, arcs_cmdline);
+ ptr = strstr(cmdline, "memsize=");
+ if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' '))
+ ptr = strstr(ptr, " memsize=");
+
+ if (ptr)
+ memsize = memparse(ptr + 8, &ptr);
+ else
+ memsize = physical_memsize;
+
+ memset(mdesc, 0, sizeof(mdesc));
+
+ mdesc[0].type = yamon_dontuse;
+ mdesc[0].base = 0x00000000;
+ mdesc[0].size = 0x00001000;
+
+ mdesc[1].type = yamon_prom;
+ mdesc[1].base = 0x00001000;
+ mdesc[1].size = 0x000ef000;
+
+ /*
+ * The area 0x000f0000-0x000fffff is allocated for BIOS memory by the
+ * south bridge and PCI access always forwarded to the ISA Bus and
+ * BIOSCS# is always generated.
+ * This mean that this area can't be used as DMA memory for PCI
+ * devices.
+ */
+ mdesc[2].type = yamon_dontuse;
+ mdesc[2].base = 0x000f0000;
+ mdesc[2].size = 0x00010000;
+
+ mdesc[3].type = yamon_dontuse;
+ mdesc[3].base = 0x00100000;
+ mdesc[3].size = CPHYSADDR(PFN_ALIGN((unsigned long)&_end)) -
+ mdesc[3].base;
+
+ mdesc[4].type = yamon_free;
+ mdesc[4].base = CPHYSADDR(PFN_ALIGN(&_end));
+ mdesc[4].size = memsize - mdesc[4].base;
+
+ return &mdesc[0];
+}
+
+static int __init prom_memtype_classify(unsigned int type)
+{
+ switch (type) {
+ case yamon_free:
+ return BOOT_MEM_RAM;
+ case yamon_prom:
+ return BOOT_MEM_ROM_DATA;
+ default:
+ return BOOT_MEM_RESERVED;
+ }
+}
+
+void __init prom_meminit(void)
+{
+ struct prom_pmemblock *p;
+
+ p = prom_getmdesc();
+
+ while (p->size) {
+ long type;
+ unsigned long base, size;
+
+ type = prom_memtype_classify(p->type);
+ base = p->base;
+ size = p->size;
+
+ add_memory_region(base, size, type);
+ p++;
+ }
+}
+
+void __init prom_free_prom_memory(void)
+{
+ unsigned long addr;
+ int i;
+
+ for (i = 0; i < boot_mem_map.nr_map; i++) {
+ if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
+ continue;
+
+ addr = boot_mem_map.map[i].addr;
+ free_init_pages("prom memory",
+ addr, addr + boot_mem_map.map[i].size);
+ }
+}
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+
+static struct mtd_partition sead3_mtd_partitions[] = {
+ {
+ .name = "User FS",
+ .offset = 0x00000000,
+ .size = 0x01fc0000,
+ }, {
+ .name = "Board Config",
+ .offset = 0x01fc0000,
+ .size = 0x00040000,
+ .mask_flags = MTD_WRITEABLE
+ },
+};
+
+static struct physmap_flash_data sead3_flash_data = {
+ .width = 4,
+ .nr_parts = ARRAY_SIZE(sead3_mtd_partitions),
+ .parts = sead3_mtd_partitions
+};
+
+static struct resource sead3_flash_resource = {
+ .start = 0x1c000000,
+ .end = 0x1dffffff,
+ .flags = IORESOURCE_MEM
+};
+
+static struct platform_device sead3_flash = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &sead3_flash_data,
+ },
+ .num_resources = 1,
+ .resource = &sead3_flash_resource,
+};
+
+static int __init sead3_mtd_init(void)
+{
+ platform_device_register(&sead3_flash);
+
+ return 0;
+}
+
+module_init(sead3_mtd_init)
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/module.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/smsc911x.h>
+
+static struct smsc911x_platform_config sead3_smsc911x_data = {
+ .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+ .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
+ .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
+ .phy_interface = PHY_INTERFACE_MODE_MII,
+};
+
+struct resource sead3_net_resourcess[] = {
+ {
+ .start = 0x1f010000,
+ .end = 0x1f01ffff,
+ .flags = IORESOURCE_MEM
+ },
+ {
+ .start = MIPS_CPU_IRQ_BASE + 6,
+ .flags = IORESOURCE_IRQ
+ }
+};
+
+static struct platform_device sead3_net_device = {
+ .name = "smsc911x",
+ .id = 0,
+ .dev = {
+ .platform_data = &sead3_smsc911x_data,
+ },
+ .num_resources = ARRAY_SIZE(sead3_net_resourcess),
+ .resource = sead3_net_resourcess
+};
+
+static int __init sead3_net_init(void)
+{
+ return platform_device_register(&sead3_net_device);
+}
+
+module_init(sead3_net_init);
+
+MODULE_AUTHOR("Chris Dearman <chris@mips.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Network probe driver for SEAD-3");
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/errno.h>
+
+#define PIC32_NULL 0x00
+#define PIC32_RD 0x01
+#define PIC32_SYSRD 0x02
+#define PIC32_WR 0x10
+#define PIC32_SYSWR 0x20
+#define PIC32_IRQ_CLR 0x40
+#define PIC32_STATUS 0x80
+
+#define DELAY() udelay(100) /* FIXME: needed? */
+
+/* spinlock to ensure atomic access to PIC32 */
+static DEFINE_SPINLOCK(pic32_bus_lock);
+
+/* FIXME: io_remap these */
+static void __iomem *bus_xfer = (void __iomem *)0xbf000600;
+static void __iomem *bus_status = (void __iomem *)0xbf000060;
+
+static inline unsigned int ioready(void)
+{
+ return readl(bus_status) & 1;
+}
+
+static inline void wait_ioready(void)
+{
+ do { } while (!ioready());
+}
+
+static inline void wait_ioclear(void)
+{
+ do { } while (ioready());
+}
+
+static inline void check_ioclear(void)
+{
+ if (ioready()) {
+ pr_debug("ioclear: initially busy\n");
+ do {
+ (void) readl(bus_xfer);
+ DELAY();
+ } while (ioready());
+ pr_debug("ioclear: cleared busy\n");
+ }
+}
+
+u32 pic32_bus_readl(u32 reg)
+{
+ unsigned long flags;
+ u32 status, val;
+
+ spin_lock_irqsave(&pic32_bus_lock, flags);
+
+ check_ioclear();
+
+ writel((PIC32_RD << 24) | (reg & 0x00ffffff), bus_xfer);
+ DELAY();
+ wait_ioready();
+ status = readl(bus_xfer);
+ DELAY();
+ val = readl(bus_xfer);
+ wait_ioclear();
+
+ pr_debug("pic32_bus_readl: *%x -> %x (status=%x)\n", reg, val, status);
+
+ spin_unlock_irqrestore(&pic32_bus_lock, flags);
+
+ return val;
+}
+
+void pic32_bus_writel(u32 val, u32 reg)
+{
+ unsigned long flags;
+ u32 status;
+
+ spin_lock_irqsave(&pic32_bus_lock, flags);
+
+ check_ioclear();
+
+ writel((PIC32_WR << 24) | (reg & 0x00ffffff), bus_xfer);
+ DELAY();
+ writel(val, bus_xfer);
+ DELAY();
+ wait_ioready();
+ status = readl(bus_xfer);
+ wait_ioclear();
+
+ pr_debug("pic32_bus_writel: *%x <- %x (status=%x)\n", reg, val, status);
+
+ spin_unlock_irqrestore(&pic32_bus_lock, flags);
+}
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+
+#define PIC32_I2CxCON 0x0000
+#define PIC32_I2CxCONCLR 0x0004
+#define PIC32_I2CxCONSET 0x0008
+#define PIC32_I2CxCONINV 0x000C
+#define I2CCON_ON (1<<15)
+#define I2CCON_FRZ (1<<14)
+#define I2CCON_SIDL (1<<13)
+#define I2CCON_SCLREL (1<<12)
+#define I2CCON_STRICT (1<<11)
+#define I2CCON_A10M (1<<10)
+#define I2CCON_DISSLW (1<<9)
+#define I2CCON_SMEN (1<<8)
+#define I2CCON_GCEN (1<<7)
+#define I2CCON_STREN (1<<6)
+#define I2CCON_ACKDT (1<<5)
+#define I2CCON_ACKEN (1<<4)
+#define I2CCON_RCEN (1<<3)
+#define I2CCON_PEN (1<<2)
+#define I2CCON_RSEN (1<<1)
+#define I2CCON_SEN (1<<0)
+
+#define PIC32_I2CxSTAT 0x0010
+#define PIC32_I2CxSTATCLR 0x0014
+#define PIC32_I2CxSTATSET 0x0018
+#define PIC32_I2CxSTATINV 0x001C
+#define I2CSTAT_ACKSTAT (1<<15)
+#define I2CSTAT_TRSTAT (1<<14)
+#define I2CSTAT_BCL (1<<10)
+#define I2CSTAT_GCSTAT (1<<9)
+#define I2CSTAT_ADD10 (1<<8)
+#define I2CSTAT_IWCOL (1<<7)
+#define I2CSTAT_I2COV (1<<6)
+#define I2CSTAT_DA (1<<5)
+#define I2CSTAT_P (1<<4)
+#define I2CSTAT_S (1<<3)
+#define I2CSTAT_RW (1<<2)
+#define I2CSTAT_RBF (1<<1)
+#define I2CSTAT_TBF (1<<0)
+
+#define PIC32_I2CxADD 0x0020
+#define PIC32_I2CxADDCLR 0x0024
+#define PIC32_I2CxADDSET 0x0028
+#define PIC32_I2CxADDINV 0x002C
+#define PIC32_I2CxMSK 0x0030
+#define PIC32_I2CxMSKCLR 0x0034
+#define PIC32_I2CxMSKSET 0x0038
+#define PIC32_I2CxMSKINV 0x003C
+#define PIC32_I2CxBRG 0x0040
+#define PIC32_I2CxBRGCLR 0x0044
+#define PIC32_I2CxBRGSET 0x0048
+#define PIC32_I2CxBRGINV 0x004C
+#define PIC32_I2CxTRN 0x0050
+#define PIC32_I2CxTRNCLR 0x0054
+#define PIC32_I2CxTRNSET 0x0058
+#define PIC32_I2CxTRNINV 0x005C
+#define PIC32_I2CxRCV 0x0060
+
+struct i2c_platform_data {
+ u32 base;
+ struct i2c_adapter adap;
+ u32 xfer_timeout;
+ u32 ack_timeout;
+ u32 ctl_timeout;
+};
+
+extern u32 pic32_bus_readl(u32 reg);
+extern void pic32_bus_writel(u32 val, u32 reg);
+
+static inline void
+StartI2C(struct i2c_platform_data *adap)
+{
+ pr_debug("StartI2C\n");
+ pic32_bus_writel(I2CCON_SEN, adap->base + PIC32_I2CxCONSET);
+}
+
+static inline void
+StopI2C(struct i2c_platform_data *adap)
+{
+ pr_debug("StopI2C\n");
+ pic32_bus_writel(I2CCON_PEN, adap->base + PIC32_I2CxCONSET);
+}
+
+static inline void
+AckI2C(struct i2c_platform_data *adap)
+{
+ pr_debug("AckI2C\n");
+ pic32_bus_writel(I2CCON_ACKDT, adap->base + PIC32_I2CxCONCLR);
+ pic32_bus_writel(I2CCON_ACKEN, adap->base + PIC32_I2CxCONSET);
+}
+
+static inline void
+NotAckI2C(struct i2c_platform_data *adap)
+{
+ pr_debug("NakI2C\n");
+ pic32_bus_writel(I2CCON_ACKDT, adap->base + PIC32_I2CxCONSET);
+ pic32_bus_writel(I2CCON_ACKEN, adap->base + PIC32_I2CxCONSET);
+}
+
+static inline int
+IdleI2C(struct i2c_platform_data *adap)
+{
+ int i;
+
+ pr_debug("IdleI2C\n");
+ for (i = 0; i < adap->ctl_timeout; i++) {
+ if (((pic32_bus_readl(adap->base + PIC32_I2CxCON) &
+ (I2CCON_ACKEN | I2CCON_RCEN | I2CCON_PEN | I2CCON_RSEN |
+ I2CCON_SEN)) == 0) &&
+ ((pic32_bus_readl(adap->base + PIC32_I2CxSTAT) &
+ (I2CSTAT_TRSTAT)) == 0))
+ return 0;
+ udelay(1);
+ }
+ return -ETIMEDOUT;
+}
+
+static inline u32
+MasterWriteI2C(struct i2c_platform_data *adap, u32 byte)
+{
+ pr_debug("MasterWriteI2C\n");
+
+ pic32_bus_writel(byte, adap->base + PIC32_I2CxTRN);
+
+ return pic32_bus_readl(adap->base + PIC32_I2CxSTAT) & I2CSTAT_IWCOL;
+}
+
+static inline u32
+MasterReadI2C(struct i2c_platform_data *adap)
+{
+ pr_debug("MasterReadI2C\n");
+
+ pic32_bus_writel(I2CCON_RCEN, adap->base + PIC32_I2CxCONSET);
+
+ while (pic32_bus_readl(adap->base + PIC32_I2CxCON) & I2CCON_RCEN)
+ ;
+
+ pic32_bus_writel(I2CSTAT_I2COV, adap->base + PIC32_I2CxSTATCLR);
+
+ return pic32_bus_readl(adap->base + PIC32_I2CxRCV);
+}
+
+static int
+do_address(struct i2c_platform_data *adap, unsigned int addr, int rd)
+{
+ pr_debug("doaddress\n");
+
+ IdleI2C(adap);
+ StartI2C(adap);
+ IdleI2C(adap);
+
+ addr <<= 1;
+ if (rd)
+ addr |= 1;
+
+ if (MasterWriteI2C(adap, addr))
+ return -EIO;
+ IdleI2C(adap);
+ if (pic32_bus_readl(adap->base + PIC32_I2CxSTAT) & I2CSTAT_ACKSTAT)
+ return -EIO;
+ return 0;
+}
+
+static int
+i2c_read(struct i2c_platform_data *adap, unsigned char *buf,
+ unsigned int len)
+{
+ int i;
+ u32 data;
+
+ pr_debug("i2c_read\n");
+
+ i = 0;
+ while (i < len) {
+ data = MasterReadI2C(adap);
+ buf[i++] = data;
+ if (i < len)
+ AckI2C(adap);
+ else
+ NotAckI2C(adap);
+ }
+
+ StopI2C(adap);
+ IdleI2C(adap);
+ return 0;
+}
+
+static int
+i2c_write(struct i2c_platform_data *adap, unsigned char *buf,
+ unsigned int len)
+{
+ int i;
+ u32 data;
+
+ pr_debug("i2c_write\n");
+
+ i = 0;
+ while (i < len) {
+ data = buf[i];
+ if (MasterWriteI2C(adap, data))
+ return -EIO;
+ IdleI2C(adap);
+ if (pic32_bus_readl(adap->base + PIC32_I2CxSTAT) &
+ I2CSTAT_ACKSTAT)
+ return -EIO;
+ i++;
+ }
+
+ StopI2C(adap);
+ IdleI2C(adap);
+ return 0;
+}
+
+static int
+platform_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num)
+{
+ struct i2c_platform_data *adap = i2c_adap->algo_data;
+ struct i2c_msg *p;
+ int i, err = 0;
+
+ pr_debug("platform_xfer\n");
+ for (i = 0; i < num; i++) {
+#define __BUFSIZE 80
+ int ii;
+ static char buf[__BUFSIZE];
+ char *b = buf;
+
+ p = &msgs[i];
+ b += sprintf(buf, " [%d bytes]", p->len);
+ if ((p->flags & I2C_M_RD) == 0) {
+ for (ii = 0; ii < p->len; ii++) {
+ if (b < &buf[__BUFSIZE-4]) {
+ b += sprintf(b, " %02x", p->buf[ii]);
+ } else {
+ strcat(b, "...");
+ break;
+ }
+ }
+ }
+ pr_debug("xfer%d: DevAddr: %04x Op:%s Data:%s\n", i, p->addr,
+ (p->flags & I2C_M_RD) ? "Rd" : "Wr", buf);
+ }
+
+
+ for (i = 0; !err && i < num; i++) {
+ p = &msgs[i];
+ err = do_address(adap, p->addr, p->flags & I2C_M_RD);
+ if (err || !p->len)
+ continue;
+ if (p->flags & I2C_M_RD)
+ err = i2c_read(adap, p->buf, p->len);
+ else
+ err = i2c_write(adap, p->buf, p->len);
+ }
+
+ /* Return the number of messages processed, or the error code. */
+ if (err == 0)
+ err = num;
+
+ return err;
+}
+
+static u32
+platform_func(struct i2c_adapter *adap)
+{
+ pr_debug("platform_algo\n");
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm platform_algo = {
+ .master_xfer = platform_xfer,
+ .functionality = platform_func,
+};
+
+static void i2c_platform_setup(struct i2c_platform_data *priv)
+{
+ pr_debug("i2c_platform_setup\n");
+
+ pic32_bus_writel(500, priv->base + PIC32_I2CxBRG);
+ pic32_bus_writel(I2CCON_ON, priv->base + PIC32_I2CxCONCLR);
+ pic32_bus_writel(I2CCON_ON, priv->base + PIC32_I2CxCONSET);
+ pic32_bus_writel((I2CSTAT_BCL | I2CSTAT_IWCOL),
+ (priv->base + PIC32_I2CxSTATCLR));
+}
+
+static void i2c_platform_disable(struct i2c_platform_data *priv)
+{
+ pr_debug("i2c_platform_disable\n");
+}
+
+static int __devinit
+i2c_platform_probe(struct platform_device *pdev)
+{
+ struct i2c_platform_data *priv;
+ struct resource *r;
+ int ret;
+
+ pr_debug("i2c_platform_probe\n");
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!r) {
+ ret = -ENODEV;
+ goto out;
+ }
+
+ priv = kzalloc(sizeof(struct i2c_platform_data), GFP_KERNEL);
+ if (!priv) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* FIXME: need to allocate resource in PIC32 space */
+#if 0
+ priv->base = bus_request_region(r->start, resource_size(r),
+ pdev->name);
+#else
+ priv->base = r->start;
+#endif
+ if (!priv->base) {
+ ret = -EBUSY;
+ goto out_mem;
+ }
+
+ priv->xfer_timeout = 200;
+ priv->ack_timeout = 200;
+ priv->ctl_timeout = 200;
+
+ priv->adap.nr = pdev->id;
+ priv->adap.algo = &platform_algo;
+ priv->adap.algo_data = priv;
+ priv->adap.dev.parent = &pdev->dev;
+ strlcpy(priv->adap.name, "PIC32 I2C", sizeof(priv->adap.name));
+
+ i2c_platform_setup(priv);
+
+ ret = i2c_add_numbered_adapter(&priv->adap);
+ if (ret == 0) {
+ platform_set_drvdata(pdev, priv);
+ return 0;
+ }
+
+ i2c_platform_disable(priv);
+
+out_mem:
+ kfree(priv);
+out:
+ return ret;
+}
+
+static int __devexit
+i2c_platform_remove(struct platform_device *pdev)
+{
+ struct i2c_platform_data *priv = platform_get_drvdata(pdev);
+
+ pr_debug("i2c_platform_remove\n");
+ platform_set_drvdata(pdev, NULL);
+ i2c_del_adapter(&priv->adap);
+ i2c_platform_disable(priv);
+ kfree(priv);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int
+i2c_platform_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct i2c_platform_data *priv = platform_get_drvdata(pdev);
+
+ dev_dbg(&pdev->dev, "i2c_platform_disable\n");
+ i2c_platform_disable(priv);
+
+ return 0;
+}
+
+static int
+i2c_platform_resume(struct platform_device *pdev)
+{
+ struct i2c_platform_data *priv = platform_get_drvdata(pdev);
+
+ dev_dbg(&pdev->dev, "i2c_platform_setup\n");
+ i2c_platform_setup(priv);
+
+ return 0;
+}
+#else
+#define i2c_platform_suspend NULL
+#define i2c_platform_resume NULL
+#endif
+
+static struct platform_driver i2c_platform_driver = {
+ .driver = {
+ .name = "i2c_pic32",
+ .owner = THIS_MODULE,
+ },
+ .probe = i2c_platform_probe,
+ .remove = __devexit_p(i2c_platform_remove),
+ .suspend = i2c_platform_suspend,
+ .resume = i2c_platform_resume,
+};
+
+static int __init
+i2c_platform_init(void)
+{
+ pr_debug("i2c_platform_init\n");
+ return platform_driver_register(&i2c_platform_driver);
+}
+
+static void __exit
+i2c_platform_exit(void)
+{
+ pr_debug("i2c_platform_exit\n");
+ platform_driver_unregister(&i2c_platform_driver);
+}
+
+MODULE_AUTHOR("Chris Dearman, MIPS Technologies INC.");
+MODULE_DESCRIPTION("PIC32 I2C driver");
+MODULE_LICENSE("GPL");
+
+module_init(i2c_platform_init);
+module_exit(i2c_platform_exit);
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+
+#define UART(base, int) \
+{ \
+ .mapbase = base, \
+ .irq = int, \
+ .uartclk = 14745600, \
+ .iotype = UPIO_MEM32, \
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP, \
+ .regshift = 2, \
+}
+
+static struct plat_serial8250_port uart8250_data[] = {
+ UART(0x1f000900, MIPS_CPU_IRQ_BASE + 4), /* ttyS0 = USB */
+ UART(0x1f000800, MIPS_CPU_IRQ_BASE + 4), /* ttyS1 = RS232 */
+ { },
+};
+
+static struct platform_device uart8250_device = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = uart8250_data,
+ },
+};
+
+static int __init uart8250_init(void)
+{
+ return platform_device_register(&uart8250_device);
+}
+
+module_init(uart8250_init);
+
+MODULE_AUTHOR("Chris Dearman <chris@mips.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("8250 UART probe driver for SEAD3");
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/io.h>
+#include <linux/pm.h>
+
+#include <asm/reboot.h>
+#include <asm/mips-boards/generic.h>
+
+static void mips_machine_restart(char *command)
+{
+ unsigned int __iomem *softres_reg =
+ ioremap(SOFTRES_REG, sizeof(unsigned int));
+
+ __raw_writel(GORESET, softres_reg);
+}
+
+static void mips_machine_halt(void)
+{
+ unsigned int __iomem *softres_reg =
+ ioremap(SOFTRES_REG, sizeof(unsigned int));
+
+ __raw_writel(GORESET, softres_reg);
+}
+
+static int __init mips_reboot_setup(void)
+{
+ _machine_restart = mips_machine_restart;
+ _machine_halt = mips_machine_halt;
+ pm_power_off = mips_machine_halt;
+
+ return 0;
+}
+
+arch_initcall(mips_reboot_setup);
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+
+#define UART(base, int) \
+{ \
+ .mapbase = base, \
+ .irq = int, \
+ .uartclk = 14745600, \
+ .iotype = UPIO_MEM32, \
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP, \
+ .regshift = 2, \
+}
+
+static struct plat_serial8250_port uart8250_data[] = {
+ UART(0x1f000900, MIPS_CPU_IRQ_BASE + 4), /* ttyS0 = USB */
+ UART(0x1f000800, MIPS_CPU_IRQ_BASE + 4), /* ttyS1 = RS232 */
+ { },
+};
+
+static struct platform_device uart8250_device = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = uart8250_data,
+ },
+};
+
+static int __init uart8250_init(void)
+{
+ return platform_device_register(&uart8250_device);
+}
+
+module_init(uart8250_init);
+
+MODULE_AUTHOR("Chris Dearman <chris@mips.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("8250 UART probe driver for the SEAD-3 platform");
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/init.h>
+
+int coherentio; /* 0 => no DMA cache coherency (may be set by user) */
+int hw_coherentio; /* 0 => no HW DMA cache coherency (reflects real HW) */
+
+const char *get_system_type(void)
+{
+ return "MIPS SEAD3";
+}
+
+void __init plat_mem_setup(void)
+{
+}
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/init.h>
+
+#include <asm/setup.h>
+#include <asm/time.h>
+#include <asm/irq.h>
+#include <asm/mips-boards/generic.h>
+#include <asm/mips-boards/prom.h>
+
+unsigned long cpu_khz;
+
+static int mips_cpu_timer_irq;
+static int mips_cpu_perf_irq;
+
+static void mips_timer_dispatch(void)
+{
+ do_IRQ(mips_cpu_timer_irq);
+}
+
+static void mips_perf_dispatch(void)
+{
+ do_IRQ(mips_cpu_perf_irq);
+}
+
+static void __iomem *status_reg = (void __iomem *)0xbf000410;
+
+/*
+ * Estimate CPU frequency. Sets mips_hpt_frequency as a side-effect.
+ */
+static unsigned int __init estimate_cpu_frequency(void)
+{
+ unsigned int prid = read_c0_prid() & 0xffff00;
+ unsigned int tick = 0;
+ unsigned int freq;
+ unsigned int orig;
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ orig = readl(status_reg) & 0x2; /* get original sample */
+ /* wait for transition */
+ while ((readl(status_reg) & 0x2) == orig)
+ ;
+ orig = orig ^ 0x2; /* flip the bit */
+
+ write_c0_count(0);
+
+ /* wait 1 second (the sampling clock transitions every 10ms) */
+ while (tick < 100) {
+ /* wait for transition */
+ while ((readl(status_reg) & 0x2) == orig)
+ ;
+ orig = orig ^ 0x2; /* flip the bit */
+ tick++;
+ }
+
+ freq = read_c0_count();
+
+ local_irq_restore(flags);
+
+ mips_hpt_frequency = freq;
+
+ /* Adjust for processor */
+ if ((prid != (PRID_COMP_MIPS | PRID_IMP_20KC)) &&
+ (prid != (PRID_COMP_MIPS | PRID_IMP_25KF)))
+ freq *= 2;
+
+ freq += 5000; /* rounding */
+ freq -= freq%10000;
+
+ return freq ;
+}
+
+void read_persistent_clock(struct timespec *ts)
+{
+ ts->tv_sec = 0;
+ ts->tv_nsec = 0;
+}
+
+static void __init plat_perf_setup(void)
+{
+ if (cp0_perfcount_irq >= 0) {
+ if (cpu_has_vint)
+ set_vi_handler(cp0_perfcount_irq, mips_perf_dispatch);
+ mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
+ }
+}
+
+unsigned int __cpuinit get_c0_compare_int(void)
+{
+ if (cpu_has_vint)
+ set_vi_handler(cp0_compare_irq, mips_timer_dispatch);
+ mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
+ return mips_cpu_timer_irq;
+}
+
+void __init plat_time_init(void)
+{
+ unsigned int est_freq;
+
+ est_freq = estimate_cpu_frequency();
+
+ pr_debug("CPU frequency %d.%02d MHz\n", (est_freq / 1000000),
+ (est_freq % 1000000) * 100 / 1000000);
+
+ cpu_khz = est_freq / 1000;
+
+ mips_scroll_message();
+
+ plat_perf_setup();
+}
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff