Split DMA controller in two

Fix register size related bugs


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2869 c046a42c-6fe2-441c-8c8c-71466251a162

9 files changed, 84 insertions, 76 deletions

diff --git a/hw/cs4231.c b/hw/cs4231.c
index 6df881d41b..390ef746f6 100644
--- a/hw/cs4231.c
+++ b/hw/cs4231.c
@@ -30,6 +30,7 @@
  * In addition to Crystal CS4231 there is a DMA controller on Sparc.
  */
 #define CS_MAXADDR 0x3f
+#define CS_SIZE (CS_MAXADDR + 1)
 #define CS_REGS 16
 #define CS_DREGS 32
 #define CS_MAXDREG (CS_DREGS - 1)
@@ -173,7 +174,7 @@ void cs_init(target_phys_addr_t base, int irq, void *intctl)
         return;
 
     cs_io_memory = cpu_register_io_memory(0, cs_mem_read, cs_mem_write, s);
-    cpu_register_physical_memory(base, CS_MAXADDR, cs_io_memory);
+    cpu_register_physical_memory(base, CS_SIZE, cs_io_memory);
     register_savevm("cs4231", base, 1, cs_save, cs_load, s);
     qemu_register_reset(cs_reset, s);
     cs_reset(s);
diff --git a/hw/esp.c b/hw/esp.c
index 65feaea6ec..627d90cabd 100644
--- a/hw/esp.c
+++ b/hw/esp.c
@@ -41,7 +41,9 @@ do { printf("ESP: " fmt , ##args); } while (0)
 #define DPRINTF(fmt, args...)
 #endif
 
-#define ESP_MAXREG 0x3f
+#define ESP_MASK 0x3f
+#define ESP_REGS 16
+#define ESP_SIZE (ESP_REGS * 4)
 #define TI_BUFSZ 32
 /* The HBA is ID 7, so for simplicitly limit to 7 devices.  */
 #define ESP_MAX_DEVS      7
@@ -50,8 +52,8 @@ typedef struct ESPState ESPState;
 
 struct ESPState {
     BlockDriverState **bd;
-    uint8_t rregs[ESP_MAXREG];
-    uint8_t wregs[ESP_MAXREG];
+    uint8_t rregs[ESP_REGS];
+    uint8_t wregs[ESP_REGS];
     int32_t ti_size;
     uint32_t ti_rptr, ti_wptr;
     uint8_t ti_buf[TI_BUFSZ];
@@ -327,12 +329,12 @@ static void handle_ti(ESPState *s)
     }
 }
 
-void esp_reset(void *opaque)
+static void esp_reset(void *opaque)
 {
     ESPState *s = opaque;
 
-    memset(s->rregs, 0, ESP_MAXREG);
-    memset(s->wregs, 0, ESP_MAXREG);
+    memset(s->rregs, 0, ESP_REGS);
+    memset(s->wregs, 0, ESP_REGS);
     s->rregs[0x0e] = 0x4; // Indicate fas100a
     s->ti_size = 0;
     s->ti_rptr = 0;
@@ -346,7 +348,7 @@ static uint32_t esp_mem_readb(void *opaque, target_phys_addr_t addr)
     ESPState *s = opaque;
     uint32_t saddr;
 
-    saddr = (addr & ESP_MAXREG) >> 2;
+    saddr = (addr & ESP_MASK) >> 2;
     DPRINTF("read reg[%d]: 0x%2.2x\n", saddr, s->rregs[saddr]);
     switch (saddr) {
     case 2:
@@ -384,7 +386,7 @@ static void esp_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
     ESPState *s = opaque;
     uint32_t saddr;
 
-    saddr = (addr & ESP_MAXREG) >> 2;
+    saddr = (addr & ESP_MASK) >> 2;
     DPRINTF("write reg[%d]: 0x%2.2x -> 0x%2.2x\n", saddr, s->wregs[saddr], val);
     switch (saddr) {
     case 0:
@@ -501,8 +503,8 @@ static void esp_save(QEMUFile *f, void *opaque)
 {
     ESPState *s = opaque;
 
-    qemu_put_buffer(f, s->rregs, ESP_MAXREG);
-    qemu_put_buffer(f, s->wregs, ESP_MAXREG);
+    qemu_put_buffer(f, s->rregs, ESP_REGS);
+    qemu_put_buffer(f, s->wregs, ESP_REGS);
     qemu_put_be32s(f, &s->ti_size);
     qemu_put_be32s(f, &s->ti_rptr);
     qemu_put_be32s(f, &s->ti_wptr);
@@ -523,8 +525,8 @@ static int esp_load(QEMUFile *f, void *opaque, int version_id)
     if (version_id != 3)
         return -EINVAL; // Cannot emulate 2
 
-    qemu_get_buffer(f, s->rregs, ESP_MAXREG);
-    qemu_get_buffer(f, s->wregs, ESP_MAXREG);
+    qemu_get_buffer(f, s->rregs, ESP_REGS);
+    qemu_get_buffer(f, s->wregs, ESP_REGS);
     qemu_get_be32s(f, &s->ti_size);
     qemu_get_be32s(f, &s->ti_rptr);
     qemu_get_be32s(f, &s->ti_wptr);
@@ -574,9 +576,10 @@ void *esp_init(BlockDriverState **bd, target_phys_addr_t espaddr,
 
     s->bd = bd;
     s->dma_opaque = dma_opaque;
+    sparc32_dma_set_reset_data(dma_opaque, esp_reset, s);
 
     esp_io_memory = cpu_register_io_memory(0, esp_mem_read, esp_mem_write, s);
-    cpu_register_physical_memory(espaddr, ESP_MAXREG*4, esp_io_memory);
+    cpu_register_physical_memory(espaddr, ESP_SIZE, esp_io_memory);
 
     esp_reset(s);
 
diff --git a/hw/pcnet.c b/hw/pcnet.c
index 12d973479c..4c4278ffa3 100644
--- a/hw/pcnet.c
+++ b/hw/pcnet.c
@@ -1554,7 +1554,7 @@ static uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap)
     return val;
 }
 
-void pcnet_h_reset(void *opaque)
+static void pcnet_h_reset(void *opaque)
 {
     PCNetState *s = opaque;
     int i;
@@ -2032,6 +2032,8 @@ void *lance_init(NICInfo *nd, target_phys_addr_t leaddr, void *dma_opaque,
         cpu_register_io_memory(0, lance_mem_read, lance_mem_write, d);
 
     d->dma_opaque = dma_opaque;
+    sparc32_dma_set_reset_data(dma_opaque, pcnet_h_reset, d);
+
     cpu_register_physical_memory(leaddr, 4, lance_io_memory);
 
     d->irq = irq;
diff --git a/hw/slavio_intctl.c b/hw/slavio_intctl.c
index 2d1f6552e0..7f93b22e32 100644
--- a/hw/slavio_intctl.c
+++ b/hw/slavio_intctl.c
@@ -58,7 +58,9 @@ typedef struct SLAVIO_INTCTLState {
 } SLAVIO_INTCTLState;
 
 #define INTCTL_MAXADDR 0xf
+#define INTCTL_SIZE (INTCTL_MAXADDR + 1)
 #define INTCTLM_MAXADDR 0x13
+#define INTCTLM_SIZE (INTCTLM_MAXADDR + 1)
 #define INTCTLM_MASK 0x1f
 static void slavio_check_interrupts(void *opaque);
 
@@ -386,11 +388,12 @@ void *slavio_intctl_init(target_phys_addr_t addr, target_phys_addr_t addrg,
     s->intbit_to_level = intbit_to_level;
     for (i = 0; i < MAX_CPUS; i++) {
 	slavio_intctl_io_memory = cpu_register_io_memory(0, slavio_intctl_mem_read, slavio_intctl_mem_write, s);
-	cpu_register_physical_memory(addr + i * TARGET_PAGE_SIZE, INTCTL_MAXADDR, slavio_intctl_io_memory);
+	cpu_register_physical_memory(addr + i * TARGET_PAGE_SIZE, INTCTL_SIZE,
+                                     slavio_intctl_io_memory);
     }
 
     slavio_intctlm_io_memory = cpu_register_io_memory(0, slavio_intctlm_mem_read, slavio_intctlm_mem_write, s);
-    cpu_register_physical_memory(addrg, INTCTLM_MAXADDR, slavio_intctlm_io_memory);
+    cpu_register_physical_memory(addrg, INTCTLM_SIZE, slavio_intctlm_io_memory);
 
     register_savevm("slavio_intctl", addr, 1, slavio_intctl_save, slavio_intctl_load, s);
     qemu_register_reset(slavio_intctl_reset, s);
diff --git a/hw/slavio_misc.c b/hw/slavio_misc.c
index 1007238240..e8a4ea4d41 100644
--- a/hw/slavio_misc.c
+++ b/hw/slavio_misc.c
@@ -47,7 +47,7 @@ typedef struct MiscState {
     uint8_t diag, mctrl, sysctrl;
 } MiscState;
 
-#define MISC_MAXADDR 1
+#define MISC_SIZE 1
 
 static void slavio_misc_update_irq(void *opaque)
 {
@@ -224,19 +224,25 @@ void *slavio_misc_init(target_phys_addr_t base, target_phys_addr_t power_base,
 
     slavio_misc_io_memory = cpu_register_io_memory(0, slavio_misc_mem_read, slavio_misc_mem_write, s);
     // Slavio control
-    cpu_register_physical_memory(base + 0x1800000, MISC_MAXADDR, slavio_misc_io_memory);
+    cpu_register_physical_memory(base + 0x1800000, MISC_SIZE,
+                                 slavio_misc_io_memory);
     // AUX 1
-    cpu_register_physical_memory(base + 0x1900000, MISC_MAXADDR, slavio_misc_io_memory);
+    cpu_register_physical_memory(base + 0x1900000, MISC_SIZE,
+                                 slavio_misc_io_memory);
     // AUX 2
-    cpu_register_physical_memory(base + 0x1910000, MISC_MAXADDR, slavio_misc_io_memory);
+    cpu_register_physical_memory(base + 0x1910000, MISC_SIZE,
+                                 slavio_misc_io_memory);
     // Diagnostics
-    cpu_register_physical_memory(base + 0x1a00000, MISC_MAXADDR, slavio_misc_io_memory);
+    cpu_register_physical_memory(base + 0x1a00000, MISC_SIZE,
+                                 slavio_misc_io_memory);
     // Modem control
-    cpu_register_physical_memory(base + 0x1b00000, MISC_MAXADDR, slavio_misc_io_memory);
+    cpu_register_physical_memory(base + 0x1b00000, MISC_SIZE,
+                                 slavio_misc_io_memory);
     // System control
-    cpu_register_physical_memory(base + 0x1f00000, MISC_MAXADDR, slavio_misc_io_memory);
+    cpu_register_physical_memory(base + 0x1f00000, MISC_SIZE,
+                                 slavio_misc_io_memory);
     // Power management
-    cpu_register_physical_memory(power_base, MISC_MAXADDR, slavio_misc_io_memory);
+    cpu_register_physical_memory(power_base, MISC_SIZE, slavio_misc_io_memory);
 
     s->irq = irq;
 
diff --git a/hw/slavio_serial.c b/hw/slavio_serial.c
index 3da40eb6cf..0a2c873300 100644
--- a/hw/slavio_serial.c
+++ b/hw/slavio_serial.c
@@ -102,6 +102,7 @@ struct SerialState {
 };
 
 #define SERIAL_MAXADDR 7
+#define SERIAL_SIZE (SERIAL_MAXADDR + 1)
 
 static void handle_kbd_command(ChannelState *s, int val);
 static int serial_can_receive(void *opaque);
@@ -178,7 +179,7 @@ static void slavio_serial_reset_chn(ChannelState *s)
     int i;
 
     s->reg = 0;
-    for (i = 0; i < SERIAL_MAXADDR; i++) {
+    for (i = 0; i < SERIAL_SIZE; i++) {
 	s->rregs[i] = 0;
 	s->wregs[i] = 0;
     }
@@ -598,7 +599,7 @@ SerialState *slavio_serial_init(target_phys_addr_t base, qemu_irq irq,
         return NULL;
 
     slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s);
-    cpu_register_physical_memory(base, SERIAL_MAXADDR, slavio_serial_io_memory);
+    cpu_register_physical_memory(base, SERIAL_SIZE, slavio_serial_io_memory);
 
     s->chn[0].chr = chr1;
     s->chn[1].chr = chr2;
@@ -723,7 +724,7 @@ void slavio_serial_ms_kbd_init(target_phys_addr_t base, qemu_irq irq)
     s->chn[1].type = kbd;
 
     slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s);
-    cpu_register_physical_memory(base, SERIAL_MAXADDR, slavio_serial_io_memory);
+    cpu_register_physical_memory(base, SERIAL_SIZE, slavio_serial_io_memory);
 
     qemu_add_mouse_event_handler(sunmouse_event, &s->chn[0], 0, "QEMU Sun Mouse");
     qemu_add_kbd_event_handler(sunkbd_event, &s->chn[1]);
diff --git a/hw/slavio_timer.c b/hw/slavio_timer.c
index e8b435f1c0..6bc293e672 100644
--- a/hw/slavio_timer.c
+++ b/hw/slavio_timer.c
@@ -59,6 +59,7 @@ typedef struct SLAVIO_TIMERState {
 } SLAVIO_TIMERState;
 
 #define TIMER_MAXADDR 0x1f
+#define TIMER_SIZE (TIMER_MAXADDR + 1)
 
 // Update count, set irq, update expire_time
 // Convert from ptimer countdown units
@@ -260,7 +261,7 @@ void slavio_timer_init(target_phys_addr_t addr, int irq, int mode,
 
     slavio_timer_io_memory = cpu_register_io_memory(0, slavio_timer_mem_read,
 						    slavio_timer_mem_write, s);
-    cpu_register_physical_memory(addr, TIMER_MAXADDR, slavio_timer_io_memory);
+    cpu_register_physical_memory(addr, TIMER_SIZE, slavio_timer_io_memory);
     register_savevm("slavio_timer", addr, 2, slavio_timer_save, slavio_timer_load, s);
     qemu_register_reset(slavio_timer_reset, s);
     slavio_timer_reset(s);
diff --git a/hw/sparc32_dma.c b/hw/sparc32_dma.c
index e1baee8b88..de14998768 100644
--- a/hw/sparc32_dma.c
+++ b/hw/sparc32_dma.c
@@ -41,22 +41,25 @@ do { printf("DMA: " fmt , ##args); } while (0)
 #define DPRINTF(fmt, args...)
 #endif
 
-#define DMA_REGS 8
-#define DMA_MAXADDR (DMA_REGS * 4 - 1)
+#define DMA_REGS 4
+#define DMA_SIZE (4 * sizeof(uint32_t))
+#define DMA_MAXADDR (DMA_SIZE - 1)
 
 #define DMA_VER 0xa0000000
 #define DMA_INTR 1
 #define DMA_INTREN 0x10
 #define DMA_WRITE_MEM 0x100
 #define DMA_LOADED 0x04000000
+#define DMA_DRAIN_FIFO 0x40
 #define DMA_RESET 0x80
 
 typedef struct DMAState DMAState;
 
 struct DMAState {
     uint32_t dmaregs[DMA_REGS];
-    qemu_irq espirq, leirq;
-    void *iommu, *esp_opaque, *lance_opaque;
+    qemu_irq irq;
+    void *iommu, *dev_opaque;
+    void (*dev_reset)(void *dev_opaque);
     qemu_irq *pic;
 };
 
@@ -69,7 +72,7 @@ void ledma_memory_read(void *opaque, target_phys_addr_t addr,
 
     DPRINTF("DMA write, direction: %c, addr 0x%8.8x\n",
             s->dmaregs[0] & DMA_WRITE_MEM ? 'w': 'r', s->dmaregs[1]);
-    addr |= s->dmaregs[7];
+    addr |= s->dmaregs[3];
     if (do_bswap) {
         sparc_iommu_memory_read(s->iommu, addr, buf, len);
     } else {
@@ -91,7 +94,7 @@ void ledma_memory_write(void *opaque, target_phys_addr_t addr,
 
     DPRINTF("DMA read, direction: %c, addr 0x%8.8x\n",
             s->dmaregs[0] & DMA_WRITE_MEM ? 'w': 'r', s->dmaregs[1]);
-    addr |= s->dmaregs[7];
+    addr |= s->dmaregs[3];
     if (do_bswap) {
         sparc_iommu_memory_write(s->iommu, addr, buf, len);
     } else {
@@ -118,7 +121,7 @@ void espdma_raise_irq(void *opaque)
 
     DPRINTF("Raise ESP IRQ\n");
     s->dmaregs[0] |= DMA_INTR;
-    qemu_irq_raise(s->espirq);
+    qemu_irq_raise(s->irq);
 }
 
 void espdma_clear_irq(void *opaque)
@@ -127,7 +130,7 @@ void espdma_clear_irq(void *opaque)
 
     s->dmaregs[0] &= ~DMA_INTR;
     DPRINTF("Lower ESP IRQ\n");
-    qemu_irq_lower(s->espirq);
+    qemu_irq_lower(s->irq);
 }
 
 void espdma_memory_read(void *opaque, uint8_t *buf, int len)
@@ -158,7 +161,8 @@ static uint32_t dma_mem_readl(void *opaque, target_phys_addr_t addr)
     uint32_t saddr;
 
     saddr = (addr & DMA_MAXADDR) >> 2;
-    DPRINTF("read dmareg[%d]: 0x%8.8x\n", saddr, s->dmaregs[saddr]);
+    DPRINTF("read dmareg " TARGET_FMT_plx ": 0x%8.8x\n", addr,
+            s->dmaregs[saddr]);
 
     return s->dmaregs[saddr];
 }
@@ -169,37 +173,26 @@ static void dma_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
     uint32_t saddr;
 
     saddr = (addr & DMA_MAXADDR) >> 2;
-    DPRINTF("write dmareg[%d]: 0x%8.8x -> 0x%8.8x\n", saddr, s->dmaregs[saddr], val);
+    DPRINTF("write dmareg " TARGET_FMT_plx ": 0x%8.8x -> 0x%8.8x\n", addr,
+            s->dmaregs[saddr], val);
     switch (saddr) {
     case 0:
         if (!(val & DMA_INTREN)) {
-            DPRINTF("Lower ESP IRQ\n");
-            qemu_irq_lower(s->espirq);
+            DPRINTF("Lower IRQ\n");
+            qemu_irq_lower(s->irq);
         }
         if (val & DMA_RESET) {
-            esp_reset(s->esp_opaque);
-        } else if (val & 0x40) {
-            val &= ~0x40;
+            s->dev_reset(s->dev_opaque);
+        } else if (val & DMA_DRAIN_FIFO) {
+            val &= ~DMA_DRAIN_FIFO;
         } else if (val == 0)
-            val = 0x40;
+            val = DMA_DRAIN_FIFO;
         val &= 0x0fffffff;
         val |= DMA_VER;
         break;
     case 1:
         s->dmaregs[0] |= DMA_LOADED;
         break;
-    case 4:
-        /* ??? Should this mask out the lance IRQ?  The NIC may re-assert
-           this IRQ unexpectedly.  */
-        if (!(val & DMA_INTREN)) {
-            DPRINTF("Lower Lance IRQ\n");
-            qemu_irq_lower(s->leirq);
-        }
-        if (val & DMA_RESET)
-            pcnet_h_reset(s->lance_opaque);
-        val &= 0x0fffffff;
-        val |= DMA_VER;
-        break;
     default:
         break;
     }
@@ -222,9 +215,8 @@ static void dma_reset(void *opaque)
 {
     DMAState *s = opaque;
 
-    memset(s->dmaregs, 0, DMA_REGS * 4);
+    memset(s->dmaregs, 0, DMA_SIZE);
     s->dmaregs[0] = DMA_VER;
-    s->dmaregs[4] = DMA_VER;
 }
 
 static void dma_save(QEMUFile *f, void *opaque)
@@ -241,7 +233,7 @@ static int dma_load(QEMUFile *f, void *opaque, int version_id)
     DMAState *s = opaque;
     unsigned int i;
 
-    if (version_id != 1)
+    if (version_id != 2)
         return -EINVAL;
     for (i = 0; i < DMA_REGS; i++)
         qemu_get_be32s(f, &s->dmaregs[i]);
@@ -249,8 +241,7 @@ static int dma_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-void *sparc32_dma_init(target_phys_addr_t daddr, qemu_irq espirq,
-                       qemu_irq leirq, void *iommu)
+void *sparc32_dma_init(target_phys_addr_t daddr, qemu_irq irq, void *iommu)
 {
     DMAState *s;
     int dma_io_memory;
@@ -259,24 +250,23 @@ void *sparc32_dma_init(target_phys_addr_t daddr, qemu_irq espirq,
     if (!s)
         return NULL;
 
-    s->espirq = espirq;
-    s->leirq = leirq;
+    s->irq = irq;
     s->iommu = iommu;
 
     dma_io_memory = cpu_register_io_memory(0, dma_mem_read, dma_mem_write, s);
-    cpu_register_physical_memory(daddr, 16 * 2, dma_io_memory);
+    cpu_register_physical_memory(daddr, DMA_SIZE, dma_io_memory);
 
-    register_savevm("sparc32_dma", daddr, 1, dma_save, dma_load, s);
+    register_savevm("sparc32_dma", daddr, 2, dma_save, dma_load, s);
     qemu_register_reset(dma_reset, s);
 
     return s;
 }
 
-void sparc32_dma_set_reset_data(void *opaque, void *esp_opaque,
-                                void *lance_opaque)
+void sparc32_dma_set_reset_data(void *opaque, void (*dev_reset)(void *opaque),
+                                void *dev_opaque)
 {
     DMAState *s = opaque;
 
-    s->esp_opaque = esp_opaque;
-    s->lance_opaque = lance_opaque;
+    s->dev_reset = dev_reset;
+    s->dev_opaque = dev_opaque;
 }
diff --git a/hw/sun4m.c b/hw/sun4m.c
index 313e5b4aa1..10473baa49 100644
--- a/hw/sun4m.c
+++ b/hw/sun4m.c
@@ -262,7 +262,7 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int ram_size,
 {
     CPUState *env, *envs[MAX_CPUS];
     unsigned int i;
-    void *iommu, *dma, *main_esp, *main_lance = NULL;
+    void *iommu, *espdma, *ledma, *main_esp, *main_lance = NULL;
     const sparc_def_t *def;
     qemu_irq *slavio_irq;
 
@@ -295,8 +295,10 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int ram_size,
     for(i = 0; i < smp_cpus; i++) {
         slavio_intctl_set_cpu(slavio_intctl, i, envs[i]);
     }
-    dma = sparc32_dma_init(hwdef->dma_base, slavio_irq[hwdef->esp_irq],
-                           slavio_irq[hwdef->le_irq], iommu);
+    espdma = sparc32_dma_init(hwdef->dma_base, slavio_irq[hwdef->esp_irq],
+                              iommu);
+    ledma = sparc32_dma_init(hwdef->dma_base + 16ULL,
+                             slavio_irq[hwdef->le_irq], iommu);
 
     if (graphic_depth != 8 && graphic_depth != 24) {
         fprintf(stderr, "qemu: Unsupported depth: %d\n", graphic_depth);
@@ -307,7 +309,7 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int ram_size,
     if (nd_table[0].vlan) {
         if (nd_table[0].model == NULL
             || strcmp(nd_table[0].model, "lance") == 0) {
-            main_lance = lance_init(&nd_table[0], hwdef->le_base, dma,
+            main_lance = lance_init(&nd_table[0], hwdef->le_base, ledma,
                                     slavio_irq[hwdef->le_irq]);
         } else {
             fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd_table[0].model);
@@ -329,7 +331,7 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int ram_size,
     slavio_serial_init(hwdef->serial_base, slavio_irq[hwdef->ser_irq],
                        serial_hds[1], serial_hds[0]);
     fdctrl_init(slavio_irq[hwdef->fd_irq], 0, 1, hwdef->fd_base, fd_table);
-    main_esp = esp_init(bs_table, hwdef->esp_base, dma);
+    main_esp = esp_init(bs_table, hwdef->esp_base, espdma);
 
     for (i = 0; i < MAX_DISKS; i++) {
         if (bs_table[i]) {
@@ -341,7 +343,6 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int ram_size,
                                    slavio_irq[hwdef->me_irq]);
     if (hwdef->cs_base != (target_phys_addr_t)-1)
         cs_init(hwdef->cs_base, hwdef->cs_irq, slavio_intctl);
-    sparc32_dma_set_reset_data(dma, main_esp, main_lance);
 }
 
 static void sun4m_load_kernel(long vram_size, int ram_size, int boot_device,