arcmsr: more readability improvements

	acb->dma_coherent2 = dma_coherent2;

	reg = (struct MessageUnit_D *)dma_coherent2;

	acb->pmuD = reg;

	reg->chip_id = acb->mem_base0 + ARCMSR_ARC1214_CHIP_ID;

	reg->cpu_mem_config = acb->mem_base0 +

		ARCMSR_ARC1214_CPU_MEMORY_CONFIGURATION;

	reg->i2o_host_interrupt_mask = acb->mem_base0 +

		ARCMSR_ARC1214_I2_HOST_INTERRUPT_MASK;

	reg->sample_at_reset = acb->mem_base0 + ARCMSR_ARC1214_SAMPLE_RESET;

	reg->reset_request = acb->mem_base0 + ARCMSR_ARC1214_RESET_REQUEST;

	reg->host_int_status = acb->mem_base0 +

		ARCMSR_ARC1214_MAIN_INTERRUPT_STATUS;

	reg->pcief0_int_enable = acb->mem_base0 +

		ARCMSR_ARC1214_PCIE_F0_INTERRUPT_ENABLE;

	reg->inbound_msgaddr0 = acb->mem_base0 +

		ARCMSR_ARC1214_INBOUND_MESSAGE0;

	reg->inbound_msgaddr1 = acb->mem_base0 +

		ARCMSR_ARC1214_INBOUND_MESSAGE1;

	reg->outbound_msgaddr0 = acb->mem_base0 +

		ARCMSR_ARC1214_OUTBOUND_MESSAGE0;

	reg->outbound_msgaddr1 = acb->mem_base0 +

		ARCMSR_ARC1214_OUTBOUND_MESSAGE1;

	reg->inbound_doorbell = acb->mem_base0 +

		ARCMSR_ARC1214_INBOUND_DOORBELL;

	reg->outbound_doorbell = acb->mem_base0 +

		ARCMSR_ARC1214_OUTBOUND_DOORBELL;

	reg->outbound_doorbell_enable = acb->mem_base0 +

		ARCMSR_ARC1214_OUTBOUND_DOORBELL_ENABLE;

	reg->inboundlist_base_low = acb->mem_base0 +

		ARCMSR_ARC1214_INBOUND_LIST_BASE_LOW;

	reg->inboundlist_base_high = acb->mem_base0 +

		ARCMSR_ARC1214_INBOUND_LIST_BASE_HIGH;

	reg->inboundlist_write_pointer = acb->mem_base0 +

		ARCMSR_ARC1214_INBOUND_LIST_WRITE_POINTER;

	reg->outboundlist_base_low = acb->mem_base0 +

		ARCMSR_ARC1214_OUTBOUND_LIST_BASE_LOW;

	reg->outboundlist_base_high = acb->mem_base0 +

		ARCMSR_ARC1214_OUTBOUND_LIST_BASE_HIGH;

	reg->outboundlist_copy_pointer = acb->mem_base0 +

		ARCMSR_ARC1214_OUTBOUND_LIST_COPY_POINTER;

	reg->outboundlist_read_pointer = acb->mem_base0 +

		ARCMSR_ARC1214_OUTBOUND_LIST_READ_POINTER;

	reg->outboundlist_interrupt_cause = acb->mem_base0 +

		ARCMSR_ARC1214_OUTBOUND_INTERRUPT_CAUSE;

	reg->outboundlist_interrupt_enable = acb->mem_base0 +

		ARCMSR_ARC1214_OUTBOUND_INTERRUPT_ENABLE;

	reg->message_wbuffer = acb->mem_base0 + ARCMSR_ARC1214_MESSAGE_WBUFFER;

	reg->message_rbuffer = acb->mem_base0 + ARCMSR_ARC1214_MESSAGE_RBUFFER;

	reg->msgcode_rwbuffer = acb->mem_base0 +

		ARCMSR_ARC1214_MESSAGE_RWBUFFER;

	reg->chip_id = MEM_BASE0(ARCMSR_ARC1214_CHIP_ID);

	reg->cpu_mem_config = MEM_BASE0(ARCMSR_ARC1214_CPU_MEMORY_CONFIGURATION);

	reg->i2o_host_interrupt_mask = MEM_BASE0(ARCMSR_ARC1214_I2_HOST_INTERRUPT_MASK);

	reg->sample_at_reset = MEM_BASE0(ARCMSR_ARC1214_SAMPLE_RESET);

	reg->reset_request = MEM_BASE0(ARCMSR_ARC1214_RESET_REQUEST);

	reg->host_int_status = MEM_BASE0(ARCMSR_ARC1214_MAIN_INTERRUPT_STATUS);

	reg->pcief0_int_enable = MEM_BASE0(ARCMSR_ARC1214_PCIE_F0_INTERRUPT_ENABLE);

	reg->inbound_msgaddr0 = MEM_BASE0(ARCMSR_ARC1214_INBOUND_MESSAGE0);

	reg->inbound_msgaddr1 = MEM_BASE0(ARCMSR_ARC1214_INBOUND_MESSAGE1);

	reg->outbound_msgaddr0 = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_MESSAGE0);

	reg->outbound_msgaddr1 = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_MESSAGE1);

	reg->inbound_doorbell = MEM_BASE0(ARCMSR_ARC1214_INBOUND_DOORBELL);

	reg->outbound_doorbell = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_DOORBELL);

	reg->outbound_doorbell_enable = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_DOORBELL_ENABLE);

	reg->inboundlist_base_low = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_BASE_LOW);

	reg->inboundlist_base_high = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_BASE_HIGH);

	reg->inboundlist_write_pointer = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_WRITE_POINTER);

	reg->outboundlist_base_low = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_BASE_LOW);

	reg->outboundlist_base_high = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_BASE_HIGH);

	reg->outboundlist_copy_pointer = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_COPY_POINTER);

	reg->outboundlist_read_pointer = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_READ_POINTER);

	reg->outboundlist_interrupt_cause = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_INTERRUPT_CAUSE);

	reg->outboundlist_interrupt_enable = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_INTERRUPT_ENABLE);

	reg->message_wbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_WBUFFER);

	reg->message_rbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_RBUFFER);

	reg->msgcode_rwbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_RWBUFFER);

	iop_firm_model = (char __iomem *)(&reg->msgcode_rwbuffer[15]);

	iop_firm_version = (char __iomem *)(&reg->msgcode_rwbuffer[17]);

	iop_device_map = (char __iomem *)(&reg->msgcode_rwbuffer[21]);