Lines Matching refs:esp
32 sbus_readl(esp->dma_regs + (REG))
34 sbus_writel((VAL), esp->dma_regs + (REG))
47 static int esp_sbus_setup_dma(struct esp *esp, struct platform_device *dma_of)
49 esp->dma = dma_of;
51 esp->dma_regs = of_ioremap(&dma_of->resource[0], 0,
54 if (!esp->dma_regs)
59 esp->dmarev = dvmarev0;
62 esp->dmarev = dvmaesc1;
65 esp->dmarev = dvmarev1;
68 esp->dmarev = dvmarev2;
71 esp->dmarev = dvmahme;
74 esp->dmarev = dvmarevplus;
82 static int esp_sbus_map_regs(struct esp *esp, int hme)
84 struct platform_device *op = to_platform_device(esp->dev);
95 esp->regs = of_ioremap(res, 0, SBUS_ESP_REG_SIZE, "ESP");
96 if (!esp->regs)
102 static int esp_sbus_map_command_block(struct esp *esp)
104 esp->command_block = dma_alloc_coherent(esp->dev, 16,
105 &esp->command_block_dma,
107 if (!esp->command_block)
112 static int esp_sbus_register_irq(struct esp *esp)
114 struct Scsi_Host *host = esp->host;
115 struct platform_device *op = to_platform_device(esp->dev);
118 return request_irq(host->irq, scsi_esp_intr, IRQF_SHARED, "ESP", esp);
121 static void esp_get_scsi_id(struct esp *esp, struct platform_device *espdma)
123 struct platform_device *op = to_platform_device(esp->dev);
127 esp->scsi_id = of_getintprop_default(dp, "initiator-id", 0xff);
128 if (esp->scsi_id != 0xff)
131 esp->scsi_id = of_getintprop_default(dp, "scsi-initiator-id", 0xff);
132 if (esp->scsi_id != 0xff)
135 esp->scsi_id = of_getintprop_default(espdma->dev.of_node,
139 esp->host->this_id = esp->scsi_id;
140 esp->scsi_id_mask = (1 << esp->scsi_id);
143 static void esp_get_differential(struct esp *esp)
145 struct platform_device *op = to_platform_device(esp->dev);
150 esp->flags |= ESP_FLAG_DIFFERENTIAL;
152 esp->flags &= ~ESP_FLAG_DIFFERENTIAL;
155 static void esp_get_clock_params(struct esp *esp)
157 struct platform_device *op = to_platform_device(esp->dev);
168 esp->cfreq = fmhz;
171 static void esp_get_bursts(struct esp *esp, struct platform_device *dma_of)
174 struct platform_device *op = to_platform_device(esp->dev);
193 esp->bursts = bursts;
196 static void esp_sbus_get_props(struct esp *esp, struct platform_device *espdma)
198 esp_get_scsi_id(esp, espdma);
199 esp_get_differential(esp);
200 esp_get_clock_params(esp);
201 esp_get_bursts(esp, espdma);
204 static void sbus_esp_write8(struct esp *esp, u8 val, unsigned long reg)
206 sbus_writeb(val, esp->regs + (reg * 4UL));
209 static u8 sbus_esp_read8(struct esp *esp, unsigned long reg)
211 return sbus_readb(esp->regs + (reg * 4UL));
214 static int sbus_esp_irq_pending(struct esp *esp)
221 static void sbus_esp_reset_dma(struct esp *esp)
225 struct platform_device *op = to_platform_device(esp->dev);
228 can_do_burst16 = (esp->bursts & DMA_BURST16) != 0;
229 can_do_burst32 = (esp->bursts & DMA_BURST32) != 0;
235 can_do_burst64 = (esp->bursts & DMA_BURST64) != 0;
238 if (esp->dmarev != dvmahme) {
243 switch (esp->dmarev) {
248 esp->prev_hme_dmacsr = (DMA_PARITY_OFF | DMA_2CLKS |
251 esp->prev_hme_dmacsr &= ~(DMA_ENABLE | DMA_ST_WRITE |
255 esp->prev_hme_dmacsr |= DMA_BRST64;
257 esp->prev_hme_dmacsr |= DMA_BRST32;
260 esp->prev_hme_dmacsr |= DMA_SCSI_SBUS64;
261 sbus_set_sbus64(&op->dev, esp->bursts);
267 printk(KERN_ALERT PFX "esp%d: DMA_PEND_READ "
269 esp->host->unique_id);
276 dma_write32(esp->prev_hme_dmacsr, DMA_CSR);
282 if (esp->rev != ESP100) {
320 static void sbus_esp_dma_drain(struct esp *esp)
325 if (esp->dmarev == dvmahme)
332 if (esp->dmarev != dvmarev3 && esp->dmarev != dvmaesc1)
338 printk(KERN_ALERT PFX "esp%d: DMA will not drain!\n",
339 esp->host->unique_id);
346 static void sbus_esp_dma_invalidate(struct esp *esp)
348 if (esp->dmarev == dvmahme) {
351 esp->prev_hme_dmacsr = ((esp->prev_hme_dmacsr |
357 dma_write32(esp->prev_hme_dmacsr, DMA_CSR);
370 printk(KERN_ALERT PFX "esp%d: DMA will not "
371 "invalidate!\n", esp->host->unique_id);
385 static void sbus_esp_send_dma_cmd(struct esp *esp, u32 addr, u32 esp_count,
392 sbus_esp_write8(esp, (esp_count >> 0) & 0xff, ESP_TCLOW);
393 sbus_esp_write8(esp, (esp_count >> 8) & 0xff, ESP_TCMED);
394 if (esp->rev == FASHME) {
395 sbus_esp_write8(esp, (esp_count >> 16) & 0xff, FAS_RLO);
396 sbus_esp_write8(esp, 0, FAS_RHI);
398 scsi_esp_cmd(esp, cmd);
400 csr = esp->prev_hme_dmacsr;
406 esp->prev_hme_dmacsr = csr;
419 if (esp->dmarev == dvmaesc1) {
425 scsi_esp_cmd(esp, cmd);
430 static int sbus_esp_dma_error(struct esp *esp)
456 struct esp *esp;
459 host = scsi_host_alloc(tpnt, sizeof(struct esp));
466 esp = shost_priv(host);
468 esp->host = host;
469 esp->dev = &op->dev;
470 esp->ops = &sbus_esp_ops;
473 esp->flags |= ESP_FLAG_WIDE_CAPABLE;
475 err = esp_sbus_setup_dma(esp, espdma);
479 err = esp_sbus_map_regs(esp, hme);
483 err = esp_sbus_map_command_block(esp);
487 err = esp_sbus_register_irq(esp);
491 esp_sbus_get_props(esp, espdma);
497 if (esp->dmarev == dvmaesc1) {
503 dev_set_drvdata(&op->dev, esp);
505 err = scsi_esp_register(esp);
512 free_irq(host->irq, esp);
515 esp->command_block,
516 esp->command_block_dma);
518 of_iounmap(&op->resource[(hme ? 1 : 0)], esp->regs, SBUS_ESP_REG_SIZE);
554 struct esp *esp = dev_get_drvdata(&op->dev);
555 struct platform_device *dma_of = esp->dma;
556 unsigned int irq = esp->host->irq;
560 scsi_esp_unregister(esp);
566 free_irq(irq, esp);
568 is_hme = (esp->dmarev == dvmahme);
571 esp->command_block,
572 esp->command_block_dma);
573 of_iounmap(&op->resource[(is_hme ? 1 : 0)], esp->regs,
575 of_iounmap(&dma_of->resource[0], esp->dma_regs,
578 scsi_host_put(esp->host);
589 .name = "SUNW,esp",
595 .name = "esp",
603 .name = "esp",