Lines Matching refs:esp

31 	sbus_readl(esp->dma_regs + (REG))
33 sbus_writel((VAL), esp->dma_regs + (REG))
46 static int esp_sbus_setup_dma(struct esp *esp, struct platform_device *dma_of) in esp_sbus_setup_dma() argument
48 esp->dma = dma_of; in esp_sbus_setup_dma()
50 esp->dma_regs = of_ioremap(&dma_of->resource[0], 0, in esp_sbus_setup_dma()
53 if (!esp->dma_regs) in esp_sbus_setup_dma()
58 esp->dmarev = dvmarev0; in esp_sbus_setup_dma()
61 esp->dmarev = dvmaesc1; in esp_sbus_setup_dma()
64 esp->dmarev = dvmarev1; in esp_sbus_setup_dma()
67 esp->dmarev = dvmarev2; in esp_sbus_setup_dma()
70 esp->dmarev = dvmahme; in esp_sbus_setup_dma()
73 esp->dmarev = dvmarevplus; in esp_sbus_setup_dma()
81 static int esp_sbus_map_regs(struct esp *esp, int hme) in esp_sbus_map_regs() argument
83 struct platform_device *op = esp->dev; in esp_sbus_map_regs()
94 esp->regs = of_ioremap(res, 0, SBUS_ESP_REG_SIZE, "ESP"); in esp_sbus_map_regs()
95 if (!esp->regs) in esp_sbus_map_regs()
101 static int esp_sbus_map_command_block(struct esp *esp) in esp_sbus_map_command_block() argument
103 struct platform_device *op = esp->dev; in esp_sbus_map_command_block()
105 esp->command_block = dma_alloc_coherent(&op->dev, 16, in esp_sbus_map_command_block()
106 &esp->command_block_dma, in esp_sbus_map_command_block()
108 if (!esp->command_block) in esp_sbus_map_command_block()
113 static int esp_sbus_register_irq(struct esp *esp) in esp_sbus_register_irq() argument
115 struct Scsi_Host *host = esp->host; in esp_sbus_register_irq()
116 struct platform_device *op = esp->dev; in esp_sbus_register_irq()
119 return request_irq(host->irq, scsi_esp_intr, IRQF_SHARED, "ESP", esp); in esp_sbus_register_irq()
122 static void esp_get_scsi_id(struct esp *esp, struct platform_device *espdma) in esp_get_scsi_id() argument
124 struct platform_device *op = esp->dev; in esp_get_scsi_id()
128 esp->scsi_id = of_getintprop_default(dp, "initiator-id", 0xff); in esp_get_scsi_id()
129 if (esp->scsi_id != 0xff) in esp_get_scsi_id()
132 esp->scsi_id = of_getintprop_default(dp, "scsi-initiator-id", 0xff); in esp_get_scsi_id()
133 if (esp->scsi_id != 0xff) in esp_get_scsi_id()
136 esp->scsi_id = of_getintprop_default(espdma->dev.of_node, in esp_get_scsi_id()
140 esp->host->this_id = esp->scsi_id; in esp_get_scsi_id()
141 esp->scsi_id_mask = (1 << esp->scsi_id); in esp_get_scsi_id()
144 static void esp_get_differential(struct esp *esp) in esp_get_differential() argument
146 struct platform_device *op = esp->dev; in esp_get_differential()
151 esp->flags |= ESP_FLAG_DIFFERENTIAL; in esp_get_differential()
153 esp->flags &= ~ESP_FLAG_DIFFERENTIAL; in esp_get_differential()
156 static void esp_get_clock_params(struct esp *esp) in esp_get_clock_params() argument
158 struct platform_device *op = esp->dev; in esp_get_clock_params()
169 esp->cfreq = fmhz; in esp_get_clock_params()
172 static void esp_get_bursts(struct esp *esp, struct platform_device *dma_of) in esp_get_bursts() argument
175 struct platform_device *op = esp->dev; in esp_get_bursts()
194 esp->bursts = bursts; in esp_get_bursts()
197 static void esp_sbus_get_props(struct esp *esp, struct platform_device *espdma) in esp_sbus_get_props() argument
199 esp_get_scsi_id(esp, espdma); in esp_sbus_get_props()
200 esp_get_differential(esp); in esp_sbus_get_props()
201 esp_get_clock_params(esp); in esp_sbus_get_props()
202 esp_get_bursts(esp, espdma); in esp_sbus_get_props()
205 static void sbus_esp_write8(struct esp *esp, u8 val, unsigned long reg) in sbus_esp_write8() argument
207 sbus_writeb(val, esp->regs + (reg * 4UL)); in sbus_esp_write8()
210 static u8 sbus_esp_read8(struct esp *esp, unsigned long reg) in sbus_esp_read8() argument
212 return sbus_readb(esp->regs + (reg * 4UL)); in sbus_esp_read8()
215 static dma_addr_t sbus_esp_map_single(struct esp *esp, void *buf, in sbus_esp_map_single() argument
218 struct platform_device *op = esp->dev; in sbus_esp_map_single()
223 static int sbus_esp_map_sg(struct esp *esp, struct scatterlist *sg, in sbus_esp_map_sg() argument
226 struct platform_device *op = esp->dev; in sbus_esp_map_sg()
231 static void sbus_esp_unmap_single(struct esp *esp, dma_addr_t addr, in sbus_esp_unmap_single() argument
234 struct platform_device *op = esp->dev; in sbus_esp_unmap_single()
239 static void sbus_esp_unmap_sg(struct esp *esp, struct scatterlist *sg, in sbus_esp_unmap_sg() argument
242 struct platform_device *op = esp->dev; in sbus_esp_unmap_sg()
247 static int sbus_esp_irq_pending(struct esp *esp) in sbus_esp_irq_pending() argument
254 static void sbus_esp_reset_dma(struct esp *esp) in sbus_esp_reset_dma() argument
261 can_do_burst16 = (esp->bursts & DMA_BURST16) != 0; in sbus_esp_reset_dma()
262 can_do_burst32 = (esp->bursts & DMA_BURST32) != 0; in sbus_esp_reset_dma()
265 op = esp->dev; in sbus_esp_reset_dma()
269 can_do_burst64 = (esp->bursts & DMA_BURST64) != 0; in sbus_esp_reset_dma()
272 if (esp->dmarev != dvmahme) { in sbus_esp_reset_dma()
277 switch (esp->dmarev) { in sbus_esp_reset_dma()
282 esp->prev_hme_dmacsr = (DMA_PARITY_OFF | DMA_2CLKS | in sbus_esp_reset_dma()
285 esp->prev_hme_dmacsr &= ~(DMA_ENABLE | DMA_ST_WRITE | in sbus_esp_reset_dma()
289 esp->prev_hme_dmacsr |= DMA_BRST64; in sbus_esp_reset_dma()
291 esp->prev_hme_dmacsr |= DMA_BRST32; in sbus_esp_reset_dma()
294 esp->prev_hme_dmacsr |= DMA_SCSI_SBUS64; in sbus_esp_reset_dma()
295 sbus_set_sbus64(&op->dev, esp->bursts); in sbus_esp_reset_dma()
303 esp->host->unique_id); in sbus_esp_reset_dma()
310 dma_write32(esp->prev_hme_dmacsr, DMA_CSR); in sbus_esp_reset_dma()
316 if (esp->rev != ESP100) { in sbus_esp_reset_dma()
354 static void sbus_esp_dma_drain(struct esp *esp) in sbus_esp_dma_drain() argument
359 if (esp->dmarev == dvmahme) in sbus_esp_dma_drain()
366 if (esp->dmarev != dvmarev3 && esp->dmarev != dvmaesc1) in sbus_esp_dma_drain()
373 esp->host->unique_id); in sbus_esp_dma_drain()
380 static void sbus_esp_dma_invalidate(struct esp *esp) in sbus_esp_dma_invalidate() argument
382 if (esp->dmarev == dvmahme) { in sbus_esp_dma_invalidate()
385 esp->prev_hme_dmacsr = ((esp->prev_hme_dmacsr | in sbus_esp_dma_invalidate()
391 dma_write32(esp->prev_hme_dmacsr, DMA_CSR); in sbus_esp_dma_invalidate()
405 "invalidate!\n", esp->host->unique_id); in sbus_esp_dma_invalidate()
419 static void sbus_esp_send_dma_cmd(struct esp *esp, u32 addr, u32 esp_count, in sbus_esp_send_dma_cmd() argument
426 sbus_esp_write8(esp, (esp_count >> 0) & 0xff, ESP_TCLOW); in sbus_esp_send_dma_cmd()
427 sbus_esp_write8(esp, (esp_count >> 8) & 0xff, ESP_TCMED); in sbus_esp_send_dma_cmd()
428 if (esp->rev == FASHME) { in sbus_esp_send_dma_cmd()
429 sbus_esp_write8(esp, (esp_count >> 16) & 0xff, FAS_RLO); in sbus_esp_send_dma_cmd()
430 sbus_esp_write8(esp, 0, FAS_RHI); in sbus_esp_send_dma_cmd()
432 scsi_esp_cmd(esp, cmd); in sbus_esp_send_dma_cmd()
434 csr = esp->prev_hme_dmacsr; in sbus_esp_send_dma_cmd()
440 esp->prev_hme_dmacsr = csr; in sbus_esp_send_dma_cmd()
453 if (esp->dmarev == dvmaesc1) { in sbus_esp_send_dma_cmd()
459 scsi_esp_cmd(esp, cmd); in sbus_esp_send_dma_cmd()
464 static int sbus_esp_dma_error(struct esp *esp) in sbus_esp_dma_error() argument
494 struct esp *esp; in esp_sbus_probe_one() local
497 host = scsi_host_alloc(tpnt, sizeof(struct esp)); in esp_sbus_probe_one()
504 esp = shost_priv(host); in esp_sbus_probe_one()
506 esp->host = host; in esp_sbus_probe_one()
507 esp->dev = op; in esp_sbus_probe_one()
508 esp->ops = &sbus_esp_ops; in esp_sbus_probe_one()
511 esp->flags |= ESP_FLAG_WIDE_CAPABLE; in esp_sbus_probe_one()
513 err = esp_sbus_setup_dma(esp, espdma); in esp_sbus_probe_one()
517 err = esp_sbus_map_regs(esp, hme); in esp_sbus_probe_one()
521 err = esp_sbus_map_command_block(esp); in esp_sbus_probe_one()
525 err = esp_sbus_register_irq(esp); in esp_sbus_probe_one()
529 esp_sbus_get_props(esp, espdma); in esp_sbus_probe_one()
535 if (esp->dmarev == dvmaesc1) { in esp_sbus_probe_one()
541 dev_set_drvdata(&op->dev, esp); in esp_sbus_probe_one()
543 err = scsi_esp_register(esp, &op->dev); in esp_sbus_probe_one()
550 free_irq(host->irq, esp); in esp_sbus_probe_one()
553 esp->command_block, in esp_sbus_probe_one()
554 esp->command_block_dma); in esp_sbus_probe_one()
556 of_iounmap(&op->resource[(hme ? 1 : 0)], esp->regs, SBUS_ESP_REG_SIZE); in esp_sbus_probe_one()
588 struct esp *esp = dev_get_drvdata(&op->dev); in esp_sbus_remove() local
589 struct platform_device *dma_of = esp->dma; in esp_sbus_remove()
590 unsigned int irq = esp->host->irq; in esp_sbus_remove()
594 scsi_esp_unregister(esp); in esp_sbus_remove()
600 free_irq(irq, esp); in esp_sbus_remove()
602 is_hme = (esp->dmarev == dvmahme); in esp_sbus_remove()
605 esp->command_block, in esp_sbus_remove()
606 esp->command_block_dma); in esp_sbus_remove()
607 of_iounmap(&op->resource[(is_hme ? 1 : 0)], esp->regs, in esp_sbus_remove()
609 of_iounmap(&dma_of->resource[0], esp->dma_regs, in esp_sbus_remove()
612 scsi_host_put(esp->host); in esp_sbus_remove()