Lines Matching refs:esp
33 sbus_readl(esp->dma_regs + (REG))
35 sbus_writel((VAL), esp->dma_regs + (REG))
48 static int esp_sbus_setup_dma(struct esp *esp, struct platform_device *dma_of)
50 esp->dma = dma_of;
52 esp->dma_regs = of_ioremap(&dma_of->resource[0], 0,
55 if (!esp->dma_regs)
60 esp->dmarev = dvmarev0;
63 esp->dmarev = dvmaesc1;
66 esp->dmarev = dvmarev1;
69 esp->dmarev = dvmarev2;
72 esp->dmarev = dvmahme;
75 esp->dmarev = dvmarevplus;
83 static int esp_sbus_map_regs(struct esp *esp, int hme)
85 struct platform_device *op = to_platform_device(esp->dev);
96 esp->regs = of_ioremap(res, 0, SBUS_ESP_REG_SIZE, "ESP");
97 if (!esp->regs)
103 static int esp_sbus_map_command_block(struct esp *esp)
105 esp->command_block = dma_alloc_coherent(esp->dev, 16,
106 &esp->command_block_dma,
108 if (!esp->command_block)
113 static int esp_sbus_register_irq(struct esp *esp)
115 struct Scsi_Host *host = esp->host;
116 struct platform_device *op = to_platform_device(esp->dev);
119 return request_irq(host->irq, scsi_esp_intr, IRQF_SHARED, "ESP", esp);
122 static void esp_get_scsi_id(struct esp *esp, struct platform_device *espdma)
124 struct platform_device *op = to_platform_device(esp->dev);
128 esp->scsi_id = of_getintprop_default(dp, "initiator-id", 0xff);
129 if (esp->scsi_id != 0xff)
132 esp->scsi_id = of_getintprop_default(dp, "scsi-initiator-id", 0xff);
133 if (esp->scsi_id != 0xff)
136 esp->scsi_id = of_getintprop_default(espdma->dev.of_node,
140 esp->host->this_id = esp->scsi_id;
141 esp->scsi_id_mask = (1 << esp->scsi_id);
144 static void esp_get_differential(struct esp *esp)
146 struct platform_device *op = to_platform_device(esp->dev);
151 esp->flags |= ESP_FLAG_DIFFERENTIAL;
153 esp->flags &= ~ESP_FLAG_DIFFERENTIAL;
156 static void esp_get_clock_params(struct esp *esp)
158 struct platform_device *op = to_platform_device(esp->dev);
169 esp->cfreq = fmhz;
172 static void esp_get_bursts(struct esp *esp, struct platform_device *dma_of)
175 struct platform_device *op = to_platform_device(esp->dev);
194 esp->bursts = bursts;
197 static void esp_sbus_get_props(struct esp *esp, struct platform_device *espdma)
199 esp_get_scsi_id(esp, espdma);
200 esp_get_differential(esp);
201 esp_get_clock_params(esp);
202 esp_get_bursts(esp, espdma);
205 static void sbus_esp_write8(struct esp *esp, u8 val, unsigned long reg)
207 sbus_writeb(val, esp->regs + (reg * 4UL));
210 static u8 sbus_esp_read8(struct esp *esp, unsigned long reg)
212 return sbus_readb(esp->regs + (reg * 4UL));
215 static int sbus_esp_irq_pending(struct esp *esp)
222 static void sbus_esp_reset_dma(struct esp *esp)
226 struct platform_device *op = to_platform_device(esp->dev);
229 can_do_burst16 = (esp->bursts & DMA_BURST16) != 0;
230 can_do_burst32 = (esp->bursts & DMA_BURST32) != 0;
236 can_do_burst64 = (esp->bursts & DMA_BURST64) != 0;
239 if (esp->dmarev != dvmahme) {
244 switch (esp->dmarev) {
249 esp->prev_hme_dmacsr = (DMA_PARITY_OFF | DMA_2CLKS |
252 esp->prev_hme_dmacsr &= ~(DMA_ENABLE | DMA_ST_WRITE |
256 esp->prev_hme_dmacsr |= DMA_BRST64;
258 esp->prev_hme_dmacsr |= DMA_BRST32;
261 esp->prev_hme_dmacsr |= DMA_SCSI_SBUS64;
262 sbus_set_sbus64(&op->dev, esp->bursts);
268 printk(KERN_ALERT PFX "esp%d: DMA_PEND_READ "
270 esp->host->unique_id);
277 dma_write32(esp->prev_hme_dmacsr, DMA_CSR);
283 if (esp->rev != ESP100) {
321 static void sbus_esp_dma_drain(struct esp *esp)
326 if (esp->dmarev == dvmahme)
333 if (esp->dmarev != dvmarev3 && esp->dmarev != dvmaesc1)
339 printk(KERN_ALERT PFX "esp%d: DMA will not drain!\n",
340 esp->host->unique_id);
347 static void sbus_esp_dma_invalidate(struct esp *esp)
349 if (esp->dmarev == dvmahme) {
352 esp->prev_hme_dmacsr = ((esp->prev_hme_dmacsr |
358 dma_write32(esp->prev_hme_dmacsr, DMA_CSR);
371 printk(KERN_ALERT PFX "esp%d: DMA will not "
372 "invalidate!\n", esp->host->unique_id);
386 static void sbus_esp_send_dma_cmd(struct esp *esp, u32 addr, u32 esp_count,
393 sbus_esp_write8(esp, (esp_count >> 0) & 0xff, ESP_TCLOW);
394 sbus_esp_write8(esp, (esp_count >> 8) & 0xff, ESP_TCMED);
395 if (esp->rev == FASHME) {
396 sbus_esp_write8(esp, (esp_count >> 16) & 0xff, FAS_RLO);
397 sbus_esp_write8(esp, 0, FAS_RHI);
399 scsi_esp_cmd(esp, cmd);
401 csr = esp->prev_hme_dmacsr;
407 esp->prev_hme_dmacsr = csr;
420 if (esp->dmarev == dvmaesc1) {
426 scsi_esp_cmd(esp, cmd);
431 static int sbus_esp_dma_error(struct esp *esp)
457 struct esp *esp;
460 host = scsi_host_alloc(tpnt, sizeof(struct esp));
467 esp = shost_priv(host);
469 esp->host = host;
470 esp->dev = &op->dev;
471 esp->ops = &sbus_esp_ops;
474 esp->flags |= ESP_FLAG_WIDE_CAPABLE;
476 err = esp_sbus_setup_dma(esp, espdma);
480 err = esp_sbus_map_regs(esp, hme);
484 err = esp_sbus_map_command_block(esp);
488 err = esp_sbus_register_irq(esp);
492 esp_sbus_get_props(esp, espdma);
498 if (esp->dmarev == dvmaesc1) {
504 dev_set_drvdata(&op->dev, esp);
506 err = scsi_esp_register(esp);
513 free_irq(host->irq, esp);
516 esp->command_block,
517 esp->command_block_dma);
519 of_iounmap(&op->resource[(hme ? 1 : 0)], esp->regs, SBUS_ESP_REG_SIZE);
555 struct esp *esp = dev_get_drvdata(&op->dev);
556 struct platform_device *dma_of = esp->dma;
557 unsigned int irq = esp->host->irq;
561 scsi_esp_unregister(esp);
567 free_irq(irq, esp);
569 is_hme = (esp->dmarev == dvmahme);
572 esp->command_block,
573 esp->command_block_dma);
574 of_iounmap(&op->resource[(is_hme ? 1 : 0)], esp->regs,
576 of_iounmap(&dma_of->resource[0], esp->dma_regs,
579 scsi_host_put(esp->host);
590 .name = "SUNW,esp",
596 .name = "esp",
604 .name = "esp",