hw/versatilepb.c - third_party/qemu - Git at Google

 /*
  * ARM Versatile Platform/Application Baseboard System emulation.
  *
  * Copyright (c) 2005-2006 CodeSourcery.
  * Written by Paul Brook
  *
  * This code is licenced under the GPL.
  */

 #include "vl.h"
 #include "arm_pic.h"

 /* Primary interrupt controller.  */

 typedef struct vpb_sic_state
 {
   arm_pic_handler handler;
   uint32_t base;
   uint32_t level;
   uint32_t mask;
   uint32_t pic_enable;
   void *parent;
   int irq;
 } vpb_sic_state;

 static void vpb_sic_update(vpb_sic_state *s)
 {
     uint32_t flags;

     flags = s->level & s->mask;
     pic_set_irq_new(s->parent, s->irq, flags != 0);
 }

 static void vpb_sic_update_pic(vpb_sic_state *s)
 {
     int i;
     uint32_t mask;

     for (i = 21; i <= 30; i++) {
         mask = 1u << i;
         if (!(s->pic_enable & mask))
             continue;
         pic_set_irq_new(s->parent, i, (s->level & mask) != 0);
     }
 }

 static void vpb_sic_set_irq(void *opaque, int irq, int level)
 {
     vpb_sic_state *s = (vpb_sic_state *)opaque;
     if (level)
         s->level |= 1u << irq;
     else
         s->level &= ~(1u << irq);
     if (s->pic_enable & (1u << irq))
         pic_set_irq_new(s->parent, irq, level);
     vpb_sic_update(s);
 }

 static uint32_t vpb_sic_read(void *opaque, target_phys_addr_t offset)
 {
     vpb_sic_state *s = (vpb_sic_state *)opaque;

     offset -= s->base;
     switch (offset >> 2) {
     case 0: /* STATUS */
         return s->level & s->mask;
     case 1: /* RAWSTAT */
         return s->level;
     case 2: /* ENABLE */
         return s->mask;
     case 4: /* SOFTINT */
         return s->level & 1;
     case 8: /* PICENABLE */
         return s->pic_enable;
     default:
         printf ("vpb_sic_read: Bad register offset 0x%x\n", offset);
         return 0;
     }
 }

 static void vpb_sic_write(void *opaque, target_phys_addr_t offset,
                           uint32_t value)
 {
     vpb_sic_state *s = (vpb_sic_state *)opaque;
     offset -= s->base;

     switch (offset >> 2) {
     case 2: /* ENSET */
         s->mask |= value;
         break;
     case 3: /* ENCLR */
         s->mask &= ~value;
         break;
     case 4: /* SOFTINTSET */
         if (value)
             s->mask |= 1;
         break;
     case 5: /* SOFTINTCLR */
         if (value)
             s->mask &= ~1u;
         break;
     case 8: /* PICENSET */
         s->pic_enable |= (value & 0x7fe00000);
         vpb_sic_update_pic(s);
         break;
     case 9: /* PICENCLR */
         s->pic_enable &= ~value;
         vpb_sic_update_pic(s);
         break;
     default:
         printf ("vpb_sic_write: Bad register offset 0x%x\n", offset);
         return;
     }
     vpb_sic_update(s);
 }

 static CPUReadMemoryFunc *vpb_sic_readfn[] = {
    vpb_sic_read,
    vpb_sic_read,
    vpb_sic_read
 };

 static CPUWriteMemoryFunc *vpb_sic_writefn[] = {
    vpb_sic_write,
    vpb_sic_write,
    vpb_sic_write
 };

 static vpb_sic_state *vpb_sic_init(uint32_t base, void *parent, int irq)
 {
     vpb_sic_state *s;
     int iomemtype;

     s = (vpb_sic_state *)qemu_mallocz(sizeof(vpb_sic_state));
     if (!s)
         return NULL;
     s->handler = vpb_sic_set_irq;
     s->base = base;
     s->parent = parent;
     s->irq = irq;
     iomemtype = cpu_register_io_memory(0, vpb_sic_readfn,
                                        vpb_sic_writefn, s);
     cpu_register_physical_memory(base, 0x00000fff, iomemtype);
     /* ??? Save/restore.  */
     return s;
 }

 /* Board init.  */

 /* The AB and PB boards both use the same core, just with different
    peripherans and expansion busses.  For now we emulate a subset of the
    PB peripherals and just change the board ID.  */

 static void versatile_init(int ram_size, int vga_ram_size, int boot_device,
                      DisplayState *ds, const char **fd_filename, int snapshot,
                      const char *kernel_filename, const char *kernel_cmdline,
                      const char *initrd_filename, int board_id)
 {
     CPUState *env;
     void *pic;
     void *sic;

     env = cpu_init();
     cpu_arm_set_model(env, ARM_CPUID_ARM926);
     /* ??? RAM shoud repeat to fill physical memory space.  */
     /* SDRAM at address zero.  */
     cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);

     pic = arm_pic_init_cpu(env);
     pic = pl190_init(0x10140000, pic, ARM_PIC_CPU_IRQ, ARM_PIC_CPU_FIQ);
     sic = vpb_sic_init(0x10003000, pic, 31);
     pl050_init(0x10006000, sic, 3, 0);
     pl050_init(0x10007000, sic, 4, 1);

     /* TODO: Init PCI NICs.  */
     if (nd_table[0].vlan) {
         if (nd_table[0].model == NULL
             || strcmp(nd_table[0].model, "smc91c111") == 0) {
             smc91c111_init(&nd_table[0], 0x10010000, sic, 25);
         } else {
             fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd_table[0].model);
             exit (1);
         }
     }

     pl011_init(0x101f1000, pic, 12, serial_hds[0]);
     pl011_init(0x101f2000, pic, 13, serial_hds[1]);
     pl011_init(0x101f3000, pic, 14, serial_hds[2]);
     pl011_init(0x10009000, sic, 6, serial_hds[3]);

     pl080_init(0x10130000, pic, 17);
     sp804_init(0x101e2000, pic, 4);
     sp804_init(0x101e3000, pic, 5);

     /* The versatile/PB actually has a modified Color LCD controller
        that includes hardware cursor support from the PL111.  */
     pl110_init(ds, 0x10120000, pic, 16, 1);

     /* Memory map for Versatile/PB:  */
     /* 0x10000000 System registers.  */
     /* 0x10001000 PCI controller config registers.  */
     /* 0x10002000 Serial bus interface.  */
     /*  0x10003000 Secondary interrupt controller.  */
     /* 0x10004000 AACI (audio).  */
     /* 0x10005000 MMCI0.  */
     /*  0x10006000 KMI0 (keyboard).  */
     /*  0x10007000 KMI1 (mouse).  */
     /* 0x10008000 Character LCD Interface.  */
     /*  0x10009000 UART3.  */
     /* 0x1000a000 Smart card 1.  */
     /* 0x1000b000 MMCI1.  */
     /*  0x10010000 Ethernet.  */
     /* 0x10020000 USB.  */
     /* 0x10100000 SSMC.  */
     /* 0x10110000 MPMC.  */
     /*  0x10120000 CLCD Controller.  */
     /*  0x10130000 DMA Controller.  */
     /*  0x10140000 Vectored interrupt controller.  */
     /* 0x101d0000 AHB Monitor Interface.  */
     /* 0x101e0000 System Controller.  */
     /* 0x101e1000 Watchdog Interface.  */
     /* 0x101e2000 Timer 0/1.  */
     /* 0x101e3000 Timer 2/3.  */
     /* 0x101e4000 GPIO port 0.  */
     /* 0x101e5000 GPIO port 1.  */
     /* 0x101e6000 GPIO port 2.  */
     /* 0x101e7000 GPIO port 3.  */
     /* 0x101e8000 RTC.  */
     /* 0x101f0000 Smart card 0.  */
     /*  0x101f1000 UART0.  */
     /*  0x101f2000 UART1.  */
     /*  0x101f3000 UART2.  */
     /* 0x101f4000 SSPI.  */

     arm_load_kernel(ram_size, kernel_filename, kernel_cmdline,
                     initrd_filename, board_id);
 }

 static void vpb_init(int ram_size, int vga_ram_size, int boot_device,
                      DisplayState *ds, const char **fd_filename, int snapshot,
                      const char *kernel_filename, const char *kernel_cmdline,
                      const char *initrd_filename)
 {
     versatile_init(ram_size, vga_ram_size, boot_device,
                    ds, fd_filename, snapshot,
                    kernel_filename, kernel_cmdline,
                    initrd_filename, 0x183);
 }

 static void vab_init(int ram_size, int vga_ram_size, int boot_device,
                      DisplayState *ds, const char **fd_filename, int snapshot,
                      const char *kernel_filename, const char *kernel_cmdline,
                      const char *initrd_filename)
 {
     versatile_init(ram_size, vga_ram_size, boot_device,
                    ds, fd_filename, snapshot,
                    kernel_filename, kernel_cmdline,
                    initrd_filename, 0x25e);
 }

 QEMUMachine versatilepb_machine = {
     "versatilepb",
     "ARM Versatile/PB (ARM926EJ-S)",
     vpb_init,
 };

 QEMUMachine versatileab_machine = {
     "versatileab",
     "ARM Versatile/AB (ARM926EJ-S)",
     vab_init,
 };
	/*
	* ARM Versatile Platform/Application Baseboard System emulation.
	*
	* Copyright (c) 2005-2006 CodeSourcery.
	* Written by Paul Brook
	*
	* This code is licenced under the GPL.
	*/

	#include "vl.h"
	#include "arm_pic.h"

	/* Primary interrupt controller. */

	typedef struct vpb_sic_state
	{
	arm_pic_handler handler;
	uint32_t base;
	uint32_t level;
	uint32_t mask;
	uint32_t pic_enable;
	void *parent;
	int irq;
	} vpb_sic_state;

	static void vpb_sic_update(vpb_sic_state *s)
	{
	uint32_t flags;

	flags = s->level & s->mask;
	pic_set_irq_new(s->parent, s->irq, flags != 0);
	}

	static void vpb_sic_update_pic(vpb_sic_state *s)
	{
	int i;
	uint32_t mask;

	for (i = 21; i <= 30; i++) {
	mask = 1u << i;
	if (!(s->pic_enable & mask))
	continue;
	pic_set_irq_new(s->parent, i, (s->level & mask) != 0);
	}
	}

	static void vpb_sic_set_irq(void *opaque, int irq, int level)
	{
	vpb_sic_state s = (vpb_sic_state )opaque;
	if (level)
	s->level \|= 1u << irq;
	else
	s->level &= ~(1u << irq);
	if (s->pic_enable & (1u << irq))
	pic_set_irq_new(s->parent, irq, level);
	vpb_sic_update(s);
	}

	static uint32_t vpb_sic_read(void *opaque, target_phys_addr_t offset)
	{
	vpb_sic_state s = (vpb_sic_state )opaque;

	offset -= s->base;
	switch (offset >> 2) {
	case 0: /* STATUS */
	return s->level & s->mask;
	case 1: /* RAWSTAT */
	return s->level;
	case 2: /* ENABLE */
	return s->mask;
	case 4: /* SOFTINT */
	return s->level & 1;
	case 8: /* PICENABLE */
	return s->pic_enable;
	default:
	printf ("vpb_sic_read: Bad register offset 0x%x\n", offset);
	return 0;
	}
	}

	static void vpb_sic_write(void *opaque, target_phys_addr_t offset,
	uint32_t value)
	{
	vpb_sic_state s = (vpb_sic_state )opaque;
	offset -= s->base;

	switch (offset >> 2) {
	case 2: /* ENSET */
	s->mask \|= value;
	break;
	case 3: /* ENCLR */
	s->mask &= ~value;
	break;
	case 4: /* SOFTINTSET */
	if (value)
	s->mask \|= 1;
	break;
	case 5: /* SOFTINTCLR */
	if (value)
	s->mask &= ~1u;
	break;
	case 8: /* PICENSET */
	s->pic_enable \|= (value & 0x7fe00000);
	vpb_sic_update_pic(s);
	break;
	case 9: /* PICENCLR */
	s->pic_enable &= ~value;
	vpb_sic_update_pic(s);
	break;
	default:
	printf ("vpb_sic_write: Bad register offset 0x%x\n", offset);
	return;
	}
	vpb_sic_update(s);
	}

	static CPUReadMemoryFunc *vpb_sic_readfn[] = {
	vpb_sic_read,
	vpb_sic_read,
	vpb_sic_read
	};

	static CPUWriteMemoryFunc *vpb_sic_writefn[] = {
	vpb_sic_write,
	vpb_sic_write,
	vpb_sic_write
	};

	static vpb_sic_state vpb_sic_init(uint32_t base, void parent, int irq)
	{
	vpb_sic_state *s;
	int iomemtype;

	s = (vpb_sic_state *)qemu_mallocz(sizeof(vpb_sic_state));
	if (!s)
	return NULL;
	s->handler = vpb_sic_set_irq;
	s->base = base;
	s->parent = parent;
	s->irq = irq;
	iomemtype = cpu_register_io_memory(0, vpb_sic_readfn,
	vpb_sic_writefn, s);
	cpu_register_physical_memory(base, 0x00000fff, iomemtype);
	/* ??? Save/restore. */
	return s;
	}

	/* Board init. */

	/* The AB and PB boards both use the same core, just with different
	peripherans and expansion busses. For now we emulate a subset of the
	PB peripherals and just change the board ID. */

	static void versatile_init(int ram_size, int vga_ram_size, int boot_device,
	DisplayState ds, const char *fd_filename, int snapshot,
	const char kernel_filename, const char kernel_cmdline,
	const char *initrd_filename, int board_id)
	{
	CPUState *env;
	void *pic;
	void *sic;

	env = cpu_init();
	cpu_arm_set_model(env, ARM_CPUID_ARM926);
	/* ??? RAM shoud repeat to fill physical memory space. */
	/* SDRAM at address zero. */
	cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);

	pic = arm_pic_init_cpu(env);
	pic = pl190_init(0x10140000, pic, ARM_PIC_CPU_IRQ, ARM_PIC_CPU_FIQ);
	sic = vpb_sic_init(0x10003000, pic, 31);
	pl050_init(0x10006000, sic, 3, 0);
	pl050_init(0x10007000, sic, 4, 1);

	/* TODO: Init PCI NICs. */
	if (nd_table[0].vlan) {
	if (nd_table[0].model == NULL
	\|\| strcmp(nd_table[0].model, "smc91c111") == 0) {
	smc91c111_init(&nd_table[0], 0x10010000, sic, 25);
	} else {
	fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd_table[0].model);
	exit (1);
	}
	}

	pl011_init(0x101f1000, pic, 12, serial_hds[0]);
	pl011_init(0x101f2000, pic, 13, serial_hds[1]);
	pl011_init(0x101f3000, pic, 14, serial_hds[2]);
	pl011_init(0x10009000, sic, 6, serial_hds[3]);

	pl080_init(0x10130000, pic, 17);
	sp804_init(0x101e2000, pic, 4);
	sp804_init(0x101e3000, pic, 5);

	/* The versatile/PB actually has a modified Color LCD controller
	that includes hardware cursor support from the PL111. */
	pl110_init(ds, 0x10120000, pic, 16, 1);

	/* Memory map for Versatile/PB: */
	/* 0x10000000 System registers. */
	/* 0x10001000 PCI controller config registers. */
	/* 0x10002000 Serial bus interface. */
	/* 0x10003000 Secondary interrupt controller. */
	/* 0x10004000 AACI (audio). */
	/* 0x10005000 MMCI0. */
	/* 0x10006000 KMI0 (keyboard). */
	/* 0x10007000 KMI1 (mouse). */
	/* 0x10008000 Character LCD Interface. */
	/* 0x10009000 UART3. */
	/* 0x1000a000 Smart card 1. */
	/* 0x1000b000 MMCI1. */
	/* 0x10010000 Ethernet. */
	/* 0x10020000 USB. */
	/* 0x10100000 SSMC. */
	/* 0x10110000 MPMC. */
	/* 0x10120000 CLCD Controller. */
	/* 0x10130000 DMA Controller. */
	/* 0x10140000 Vectored interrupt controller. */
	/* 0x101d0000 AHB Monitor Interface. */
	/* 0x101e0000 System Controller. */
	/* 0x101e1000 Watchdog Interface. */
	/* 0x101e2000 Timer 0/1. */
	/* 0x101e3000 Timer 2/3. */
	/* 0x101e4000 GPIO port 0. */
	/* 0x101e5000 GPIO port 1. */
	/* 0x101e6000 GPIO port 2. */
	/* 0x101e7000 GPIO port 3. */
	/* 0x101e8000 RTC. */
	/* 0x101f0000 Smart card 0. */
	/* 0x101f1000 UART0. */
	/* 0x101f2000 UART1. */
	/* 0x101f3000 UART2. */
	/* 0x101f4000 SSPI. */

	arm_load_kernel(ram_size, kernel_filename, kernel_cmdline,
	initrd_filename, board_id);
	}

	static void vpb_init(int ram_size, int vga_ram_size, int boot_device,
	DisplayState ds, const char *fd_filename, int snapshot,
	const char kernel_filename, const char kernel_cmdline,
	const char *initrd_filename)
	{
	versatile_init(ram_size, vga_ram_size, boot_device,
	ds, fd_filename, snapshot,
	kernel_filename, kernel_cmdline,
	initrd_filename, 0x183);
	}

	static void vab_init(int ram_size, int vga_ram_size, int boot_device,
	DisplayState ds, const char *fd_filename, int snapshot,
	const char kernel_filename, const char kernel_cmdline,
	const char *initrd_filename)
	{
	versatile_init(ram_size, vga_ram_size, boot_device,
	ds, fd_filename, snapshot,
	kernel_filename, kernel_cmdline,
	initrd_filename, 0x25e);
	}

	QEMUMachine versatilepb_machine = {
	"versatilepb",
	"ARM Versatile/PB (ARM926EJ-S)",
	vpb_init,
	};

	QEMUMachine versatileab_machine = {
	"versatileab",
	"ARM Versatile/AB (ARM926EJ-S)",
	vab_init,
	};