Intel Mainstone II (ARM) machine by Armin Kuster.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3736 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 307 insertions, 0 deletions

diff --git a/hw/mainstone.c b/hw/mainstone.c
new file mode 100644
index 0000000..274cbff
--- /dev/null
+++ b/hw/mainstone.c
@@ -0,0 +1,307 @@
+/*
+ * PXA270-based Intel Mainstone platforms.
+ *
+ * Copyright (c) 2007 by Armin Kuster <akuster@kama-aina.net> or
+ *                                    <akuster@mvista.com>
+ *
+ * Code based on spitz platform by Andrzej Zaborowski <balrog@zabor.org>
+ *
+ * This code is licensed under the GNU GPL v2.
+ */
+#include "hw.h"
+#include "pxa.h"
+#include "arm-misc.h"
+#include "sysemu.h"
+#include "net.h"
+#include "devices.h"
+#include "boards.h"
+
+#define MST_ETH_PHYS	0x10000300
+#define MST_FPGA_PHYS	0x08000000
+
+/* Mainstone FPGA for extern irqs */
+#define FPGA_GPIO_PIN	0
+#define MST_NUM_IRQS	16
+#define MST_BASE	MST_FPGA_PHYS
+#define MST_LEDDAT1	0x10
+#define MST_LEDDAT2	0x14
+#define MST_LEDCTRL	0x40
+#define MST_GPSWR	0x60
+#define MST_MSCWR1	0x80
+#define MST_MSCWR2	0x84
+#define MST_MSCWR3	0x88
+#define MST_MSCRD	0x90
+#define MST_INTMSKENA	0xc0
+#define MST_INTSETCLR	0xd0
+#define MST_PCMCIA0	0xe0
+#define MST_PCMCIA1	0xe4
+
+/* IRQ definitions */
+#define ETHERNET_IRQ	3
+
+typedef struct mst_irq_state {
+    target_phys_addr_t target_base;
+    qemu_irq *parent;
+    qemu_irq *pins;
+
+    uint32_t prev_level;
+    uint32_t leddat1;
+    uint32_t leddat2;
+    uint32_t ledctrl;
+    uint32_t gpswr;
+    uint32_t mscwr1;
+    uint32_t mscwr2;
+    uint32_t mscwr3;
+    uint32_t mscrd;
+    uint32_t intmskena;
+    uint32_t intsetclr;
+    uint32_t pcmcia0;
+    uint32_t pcmcia1;
+} mst_irq_state;
+
+static void 
+mst_fpga_update_gpio(mst_irq_state *s)
+{
+    uint32_t level, diff;
+    int bit;
+    level = s->prev_level ^ s->intsetclr;
+
+    for (diff = s->prev_level ^ level; diff; diff ^= 1 << bit) {
+        bit = ffs(diff) - 1;
+        qemu_set_irq(s->pins[bit], (level >> bit) & 1 );
+    }
+    s->prev_level = level;
+}
+
+static void 
+mst_fpga_set_irq(void *opaque, int irq, int level)
+{
+    mst_irq_state *s = (mst_irq_state *)opaque;
+
+    if (level)
+        s->prev_level |= 1u << irq;
+    else
+        s->prev_level &= ~(1u << irq);
+
+    if(s->intmskena & (1u << irq)) {
+        s->intsetclr = 1u << irq;
+        qemu_set_irq(s->parent[0], level);
+    }
+}
+
+static uint32_t 
+mst_fpga_readb(void *opaque, target_phys_addr_t addr)
+{
+    mst_irq_state *s = (mst_irq_state *) opaque;
+    addr -= s->target_base;
+
+    switch (addr) {
+    case MST_LEDDAT1:
+        return s->leddat1;
+    case MST_LEDDAT2:
+        return s->leddat2;
+    case MST_LEDCTRL:
+        return s->ledctrl;
+    case MST_GPSWR:
+        return s->gpswr;
+    case MST_MSCWR1:
+        return s->mscwr1;
+    case MST_MSCWR2:
+        return s->mscwr2;
+    case MST_MSCWR3:
+        return s->mscwr3;
+    case MST_MSCRD:
+        return s->mscrd;
+    case MST_INTMSKENA:
+        return s->intmskena;
+    case MST_INTSETCLR:
+        return s->intsetclr;
+    case MST_PCMCIA0:
+        return s->pcmcia0;
+    case MST_PCMCIA1:
+        return s->pcmcia1;
+    default:
+        printf("Mainstone - mst_fpga_readb: Bad register offset " 
+                REG_FMT " \n", addr);
+    }
+    return 0;
+}
+
+static void 
+mst_fpga_writeb(void *opaque, target_phys_addr_t addr, uint32_t value)
+{
+    mst_irq_state *s = (mst_irq_state *) opaque;
+    addr -= s->target_base;
+    value &= 0xffffffff;
+
+    switch (addr) {
+    case MST_LEDDAT1:
+        s->leddat1 = value;
+        break;
+    case MST_LEDDAT2:
+        s->leddat2 = value;
+        break;
+    case MST_LEDCTRL:
+        s->ledctrl = value;
+        break;
+    case MST_GPSWR:
+        s->gpswr = value;
+        break;
+    case MST_MSCWR1:
+        s->mscwr1 = value;
+        break;
+    case MST_MSCWR2:
+        s->mscwr2 = value;
+        break;
+    case MST_MSCWR3:
+        s->mscwr3 = value;
+        break;
+    case MST_MSCRD:
+        s->mscrd =  value;
+        break;
+    case MST_INTMSKENA:	/* Mask interupt */
+        s->intmskena = (value & 0xFEEFF);
+        mst_fpga_update_gpio(s);
+        break;
+    case MST_INTSETCLR:	/* clear or set interrupt */
+        s->intsetclr = (value & 0xFEEFF);
+        break;
+    case MST_PCMCIA0:
+        s->pcmcia0 = value;
+        break;
+    case MST_PCMCIA1:
+        s->pcmcia1 = value;
+        break;
+    default:
+        printf("Mainstone - mst_fpga_writeb: Bad register offset "
+                REG_FMT " \n", addr);
+    }
+}
+
+CPUReadMemoryFunc *mst_fpga_readfn[] = {
+    mst_fpga_readb,
+    mst_fpga_readb,
+    mst_fpga_readb,
+};
+CPUWriteMemoryFunc *mst_fpga_writefn[] = {
+    mst_fpga_writeb,
+    mst_fpga_writeb,
+    mst_fpga_writeb,
+};
+
+static void 
+mst_fpga_save(QEMUFile *f, void *opaque)
+{
+    struct mst_irq_state *s = (mst_irq_state *) opaque;
+
+    qemu_put_be32s(f, &s->prev_level);
+    qemu_put_be32s(f, &s->leddat1);
+    qemu_put_be32s(f, &s->leddat2);
+    qemu_put_be32s(f, &s->ledctrl);
+    qemu_put_be32s(f, &s->gpswr);
+    qemu_put_be32s(f, &s->mscwr1);
+    qemu_put_be32s(f, &s->mscwr2);
+    qemu_put_be32s(f, &s->mscwr3);
+    qemu_put_be32s(f, &s->mscrd);
+    qemu_put_be32s(f, &s->intmskena);
+    qemu_put_be32s(f, &s->intsetclr);
+    qemu_put_be32s(f, &s->pcmcia0);
+    qemu_put_be32s(f, &s->pcmcia1);
+}
+
+static int 
+mst_fpga_load(QEMUFile *f, void *opaque, int version_id)
+{
+    mst_irq_state *s = (mst_irq_state *) opaque;
+
+    qemu_get_be32s(f, &s->prev_level);
+    qemu_get_be32s(f, &s->leddat1);
+    qemu_get_be32s(f, &s->leddat2);
+    qemu_get_be32s(f, &s->ledctrl);
+    qemu_get_be32s(f, &s->gpswr);
+    qemu_get_be32s(f, &s->mscwr1);
+    qemu_get_be32s(f, &s->mscwr2);
+    qemu_get_be32s(f, &s->mscwr3);
+    qemu_get_be32s(f, &s->mscrd);
+    qemu_get_be32s(f, &s->intmskena);
+    qemu_get_be32s(f, &s->intsetclr);
+    qemu_get_be32s(f, &s->pcmcia0);
+    qemu_get_be32s(f, &s->pcmcia1);
+    return 0;
+}
+
+static qemu_irq 
+*mst_irq_init(struct pxa2xx_state_s *cpu, uint32_t base, int irq)
+{
+    mst_irq_state *s;
+    int iomemtype;
+    qemu_irq *qi;
+
+    s = (mst_irq_state *) qemu_mallocz(sizeof(mst_irq_state));
+
+    if (!s)
+        return NULL;
+    s->target_base = base;
+    s->parent = &cpu->pic[irq];
+
+    /* alloc the external 16 irqs */
+    qi = qemu_allocate_irqs(mst_fpga_set_irq, s, MST_NUM_IRQS);
+    s->pins = qi;
+
+    iomemtype = cpu_register_io_memory(0, mst_fpga_readfn,
+                    mst_fpga_writefn, s);
+    cpu_register_physical_memory(MST_BASE, 0x00100000, iomemtype);
+    register_savevm("mainstone_fpga", 0, 0, mst_fpga_save, mst_fpga_load, s);
+    return qi;
+}
+
+enum mainstone_model_e { mainstone };
+
+static void mainstone_common_init(int ram_size, int vga_ram_size,
+                DisplayState *ds, const char *kernel_filename,
+                const char *kernel_cmdline, const char *initrd_filename,
+                const char *cpu_model, enum mainstone_model_e model, int arm_id)
+{
+    uint32_t mainstone_ram = 0x04000000;
+    uint32_t mainstone_rom = 0x00800000;
+    struct pxa2xx_state_s *cpu;
+    qemu_irq *mst_irq;
+
+    if (!cpu_model)
+        cpu_model = "pxa270-c5";
+
+    /* Setup CPU & memory */
+    if (ram_size < mainstone_ram + mainstone_rom + PXA2XX_INTERNAL_SIZE) {
+        fprintf(stderr, "This platform requires %i bytes of memory\n",
+                        mainstone_ram + mainstone_rom + PXA2XX_INTERNAL_SIZE);
+        exit(1);
+    }
+
+    cpu = pxa270_init(mainstone_ram, ds, cpu_model);
+    cpu_register_physical_memory(0, mainstone_rom,
+                    qemu_ram_alloc(mainstone_rom) | IO_MEM_ROM);
+
+    /* Setup initial (reset) machine state */
+    cpu->env->regs[15] = PXA2XX_SDRAM_BASE;
+
+    mst_irq = mst_irq_init(cpu, MST_BASE, PXA2XX_PIC_GPIO_0);
+    smc91c111_init(&nd_table[0], MST_ETH_PHYS, mst_irq[ETHERNET_IRQ]);
+
+    arm_load_kernel(cpu->env, mainstone_ram, kernel_filename, kernel_cmdline,
+                    initrd_filename, arm_id, PXA2XX_SDRAM_BASE);
+}
+
+static void mainstone_init(int ram_size, int vga_ram_size,
+                const char *boot_device, DisplayState *ds,
+                const char *kernel_filename, const char *kernel_cmdline,
+                const char *initrd_filename, const char *cpu_model)
+{
+    mainstone_common_init(ram_size, vga_ram_size, ds, kernel_filename,
+                kernel_cmdline, initrd_filename, cpu_model, mainstone, 0x196);
+}
+
+QEMUMachine mainstone2_machine = {
+    "mainstone",
+    "Mainstone II (PXA27x)",
+    mainstone_init,
+};