Lines Matching refs:rpc
170 struct rpcif *rpc = context; in rpcif_reg_read() local
173 u32 spide = readl(rpc->base + RPCIF_SMENR) & RPCIF_SMENR_SPIDE(0xF); in rpcif_reg_read()
176 *val = readb(rpc->base + reg); in rpcif_reg_read()
179 *val = readw(rpc->base + reg); in rpcif_reg_read()
186 *val = readl(rpc->base + reg); in rpcif_reg_read()
192 struct rpcif *rpc = context; in rpcif_reg_write() local
195 u32 spide = readl(rpc->base + RPCIF_SMENR) & RPCIF_SMENR_SPIDE(0xF); in rpcif_reg_write()
198 writeb(val, rpc->base + reg); in rpcif_reg_write()
201 writew(val, rpc->base + reg); in rpcif_reg_write()
208 writel(val, rpc->base + reg); in rpcif_reg_write()
223 int rpcif_sw_init(struct rpcif *rpc, struct device *dev) in rpcif_sw_init() argument
228 rpc->dev = dev; in rpcif_sw_init()
231 rpc->base = devm_ioremap_resource(&pdev->dev, res); in rpcif_sw_init()
232 if (IS_ERR(rpc->base)) in rpcif_sw_init()
233 return PTR_ERR(rpc->base); in rpcif_sw_init()
235 rpc->regmap = devm_regmap_init(&pdev->dev, NULL, rpc, &rpcif_regmap_config); in rpcif_sw_init()
236 if (IS_ERR(rpc->regmap)) { in rpcif_sw_init()
239 PTR_ERR(rpc->regmap)); in rpcif_sw_init()
240 return PTR_ERR(rpc->regmap); in rpcif_sw_init()
244 rpc->dirmap = devm_ioremap_resource(&pdev->dev, res); in rpcif_sw_init()
245 if (IS_ERR(rpc->dirmap)) in rpcif_sw_init()
246 rpc->dirmap = NULL; in rpcif_sw_init()
247 rpc->size = resource_size(res); in rpcif_sw_init()
249 rpc->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL); in rpcif_sw_init()
251 return PTR_ERR_OR_ZERO(rpc->rstc); in rpcif_sw_init()
255 void rpcif_hw_init(struct rpcif *rpc, bool hyperflash) in rpcif_hw_init() argument
259 pm_runtime_get_sync(rpc->dev); in rpcif_hw_init()
269 regmap_write(rpc->regmap, RPCIF_PHYCNT, RPCIF_PHYCNT_STRTIM(7) | in rpcif_hw_init()
278 regmap_write(rpc->regmap, RPCIF_PHYOFFSET1, 0x1511144 | in rpcif_hw_init()
280 regmap_write(rpc->regmap, RPCIF_PHYOFFSET2, 0x31 | in rpcif_hw_init()
284 regmap_update_bits(rpc->regmap, RPCIF_PHYINT, in rpcif_hw_init()
287 regmap_write(rpc->regmap, RPCIF_CMNCR, RPCIF_CMNCR_SFDE | in rpcif_hw_init()
291 regmap_write(rpc->regmap, RPCIF_DRCR, RPCIF_DRCR_RCF); in rpcif_hw_init()
293 regmap_read(rpc->regmap, RPCIF_DRCR, &dummy); in rpcif_hw_init()
294 regmap_write(rpc->regmap, RPCIF_SSLDR, RPCIF_SSLDR_SPNDL(7) | in rpcif_hw_init()
297 pm_runtime_put(rpc->dev); in rpcif_hw_init()
299 rpc->bus_size = hyperflash ? 2 : 1; in rpcif_hw_init()
303 static int wait_msg_xfer_end(struct rpcif *rpc) in wait_msg_xfer_end() argument
307 return regmap_read_poll_timeout(rpc->regmap, RPCIF_CMNSR, sts, in wait_msg_xfer_end()
312 static u8 rpcif_bits_set(struct rpcif *rpc, u32 nbytes) in rpcif_bits_set() argument
314 if (rpc->bus_size == 2) in rpcif_bits_set()
325 void rpcif_prepare(struct rpcif *rpc, const struct rpcif_op *op, u64 *offs, in rpcif_prepare() argument
328 rpc->smcr = 0; in rpcif_prepare()
329 rpc->smadr = 0; in rpcif_prepare()
330 rpc->enable = 0; in rpcif_prepare()
331 rpc->command = 0; in rpcif_prepare()
332 rpc->option = 0; in rpcif_prepare()
333 rpc->dummy = 0; in rpcif_prepare()
334 rpc->ddr = 0; in rpcif_prepare()
335 rpc->xferlen = 0; in rpcif_prepare()
338 rpc->enable = RPCIF_SMENR_CDE | in rpcif_prepare()
340 rpc->command = RPCIF_SMCMR_CMD(op->cmd.opcode); in rpcif_prepare()
342 rpc->ddr = RPCIF_SMDRENR_HYPE(0x5); in rpcif_prepare()
345 rpc->enable |= RPCIF_SMENR_OCDE | in rpcif_prepare()
347 rpc->command |= RPCIF_SMCMR_OCMD(op->ocmd.opcode); in rpcif_prepare()
351 rpc->enable |= in rpcif_prepare()
354 rpc->enable |= RPCIF_SMENR_ADE(0xF); in rpcif_prepare()
356 rpc->enable |= RPCIF_SMENR_ADE(GENMASK( in rpcif_prepare()
359 rpc->ddr |= RPCIF_SMDRENR_ADDRE; in rpcif_prepare()
362 rpc->smadr = *offs; in rpcif_prepare()
364 rpc->smadr = op->addr.val; in rpcif_prepare()
368 rpc->enable |= RPCIF_SMENR_DME; in rpcif_prepare()
369 rpc->dummy = RPCIF_SMDMCR_DMCYC(op->dummy.ncycles / in rpcif_prepare()
374 rpc->enable |= RPCIF_SMENR_OPDE( in rpcif_prepare()
375 rpcif_bits_set(rpc, op->option.nbytes)) | in rpcif_prepare()
378 rpc->ddr |= RPCIF_SMDRENR_OPDRE; in rpcif_prepare()
379 rpc->option = op->option.val; in rpcif_prepare()
382 rpc->dir = op->data.dir; in rpcif_prepare()
386 rpc->buffer = op->data.buf.in; in rpcif_prepare()
389 rpc->smcr = RPCIF_SMCR_SPIRE; in rpcif_prepare()
392 rpc->smcr = RPCIF_SMCR_SPIWE; in rpcif_prepare()
398 rpc->ddr |= RPCIF_SMDRENR_SPIDRE; in rpcif_prepare()
404 rpc->xferlen = nbytes; in rpcif_prepare()
406 rpc->enable |= RPCIF_SMENR_SPIDB(rpcif_bit_size(op->data.buswidth)); in rpcif_prepare()
411 int rpcif_manual_xfer(struct rpcif *rpc) in rpcif_manual_xfer() argument
413 u32 smenr, smcr, pos = 0, max = rpc->bus_size == 2 ? 8 : 4; in rpcif_manual_xfer()
416 pm_runtime_get_sync(rpc->dev); in rpcif_manual_xfer()
418 regmap_update_bits(rpc->regmap, RPCIF_PHYCNT, in rpcif_manual_xfer()
420 regmap_update_bits(rpc->regmap, RPCIF_CMNCR, in rpcif_manual_xfer()
422 regmap_write(rpc->regmap, RPCIF_SMCMR, rpc->command); in rpcif_manual_xfer()
423 regmap_write(rpc->regmap, RPCIF_SMOPR, rpc->option); in rpcif_manual_xfer()
424 regmap_write(rpc->regmap, RPCIF_SMDMCR, rpc->dummy); in rpcif_manual_xfer()
425 regmap_write(rpc->regmap, RPCIF_SMDRENR, rpc->ddr); in rpcif_manual_xfer()
426 regmap_write(rpc->regmap, RPCIF_SMADR, rpc->smadr); in rpcif_manual_xfer()
427 smenr = rpc->enable; in rpcif_manual_xfer()
429 switch (rpc->dir) { in rpcif_manual_xfer()
431 while (pos < rpc->xferlen) { in rpcif_manual_xfer()
432 u32 bytes_left = rpc->xferlen - pos; in rpcif_manual_xfer()
435 smcr = rpc->smcr | RPCIF_SMCR_SPIE; in rpcif_manual_xfer()
442 smenr |= RPCIF_SMENR_SPIDE(rpcif_bits_set(rpc, nbytes)); in rpcif_manual_xfer()
443 regmap_write(rpc->regmap, RPCIF_SMENR, smenr); in rpcif_manual_xfer()
445 memcpy(data, rpc->buffer + pos, nbytes); in rpcif_manual_xfer()
447 regmap_write(rpc->regmap, RPCIF_SMWDR1, in rpcif_manual_xfer()
449 regmap_write(rpc->regmap, RPCIF_SMWDR0, in rpcif_manual_xfer()
452 regmap_write(rpc->regmap, RPCIF_SMWDR0, in rpcif_manual_xfer()
456 regmap_write(rpc->regmap, RPCIF_SMCR, smcr); in rpcif_manual_xfer()
457 ret = wait_msg_xfer_end(rpc); in rpcif_manual_xfer()
462 smenr = rpc->enable & in rpcif_manual_xfer()
473 if (!(smenr & RPCIF_SMENR_ADE(0xF)) && rpc->dirmap) { in rpcif_manual_xfer()
476 regmap_update_bits(rpc->regmap, RPCIF_CMNCR, in rpcif_manual_xfer()
478 regmap_write(rpc->regmap, RPCIF_DRCR, in rpcif_manual_xfer()
480 regmap_write(rpc->regmap, RPCIF_DRCMR, rpc->command); in rpcif_manual_xfer()
481 regmap_write(rpc->regmap, RPCIF_DREAR, in rpcif_manual_xfer()
483 regmap_write(rpc->regmap, RPCIF_DROPR, rpc->option); in rpcif_manual_xfer()
484 regmap_write(rpc->regmap, RPCIF_DRENR, in rpcif_manual_xfer()
486 regmap_write(rpc->regmap, RPCIF_DRDMCR, rpc->dummy); in rpcif_manual_xfer()
487 regmap_write(rpc->regmap, RPCIF_DRDRENR, rpc->ddr); in rpcif_manual_xfer()
488 memcpy_fromio(rpc->buffer, rpc->dirmap, rpc->xferlen); in rpcif_manual_xfer()
489 regmap_write(rpc->regmap, RPCIF_DRCR, RPCIF_DRCR_RCF); in rpcif_manual_xfer()
491 regmap_read(rpc->regmap, RPCIF_DRCR, &dummy); in rpcif_manual_xfer()
494 while (pos < rpc->xferlen) { in rpcif_manual_xfer()
495 u32 bytes_left = rpc->xferlen - pos; in rpcif_manual_xfer()
501 regmap_write(rpc->regmap, RPCIF_SMADR, in rpcif_manual_xfer()
502 rpc->smadr + pos); in rpcif_manual_xfer()
504 smenr |= RPCIF_SMENR_SPIDE(rpcif_bits_set(rpc, nbytes)); in rpcif_manual_xfer()
505 regmap_write(rpc->regmap, RPCIF_SMENR, smenr); in rpcif_manual_xfer()
506 regmap_write(rpc->regmap, RPCIF_SMCR, in rpcif_manual_xfer()
507 rpc->smcr | RPCIF_SMCR_SPIE); in rpcif_manual_xfer()
508 ret = wait_msg_xfer_end(rpc); in rpcif_manual_xfer()
513 regmap_read(rpc->regmap, RPCIF_SMRDR1, in rpcif_manual_xfer()
515 regmap_read(rpc->regmap, RPCIF_SMRDR0, in rpcif_manual_xfer()
518 regmap_read(rpc->regmap, RPCIF_SMRDR0, in rpcif_manual_xfer()
521 memcpy(rpc->buffer + pos, data, nbytes); in rpcif_manual_xfer()
527 regmap_write(rpc->regmap, RPCIF_SMENR, rpc->enable); in rpcif_manual_xfer()
528 regmap_write(rpc->regmap, RPCIF_SMCR, in rpcif_manual_xfer()
529 rpc->smcr | RPCIF_SMCR_SPIE); in rpcif_manual_xfer()
530 ret = wait_msg_xfer_end(rpc); in rpcif_manual_xfer()
536 pm_runtime_put(rpc->dev); in rpcif_manual_xfer()
540 if (reset_control_reset(rpc->rstc)) in rpcif_manual_xfer()
541 dev_err(rpc->dev, "Failed to reset HW\n"); in rpcif_manual_xfer()
542 rpcif_hw_init(rpc, rpc->bus_size == 2); in rpcif_manual_xfer()
589 ssize_t rpcif_dirmap_read(struct rpcif *rpc, u64 offs, size_t len, void *buf) in rpcif_dirmap_read() argument
597 pm_runtime_get_sync(rpc->dev); in rpcif_dirmap_read()
599 regmap_update_bits(rpc->regmap, RPCIF_CMNCR, RPCIF_CMNCR_MD, 0); in rpcif_dirmap_read()
600 regmap_write(rpc->regmap, RPCIF_DRCR, 0); in rpcif_dirmap_read()
601 regmap_write(rpc->regmap, RPCIF_DRCMR, rpc->command); in rpcif_dirmap_read()
602 regmap_write(rpc->regmap, RPCIF_DREAR, in rpcif_dirmap_read()
604 regmap_write(rpc->regmap, RPCIF_DROPR, rpc->option); in rpcif_dirmap_read()
605 regmap_write(rpc->regmap, RPCIF_DRENR, in rpcif_dirmap_read()
606 rpc->enable & ~RPCIF_SMENR_SPIDE(0xF)); in rpcif_dirmap_read()
607 regmap_write(rpc->regmap, RPCIF_DRDMCR, rpc->dummy); in rpcif_dirmap_read()
608 regmap_write(rpc->regmap, RPCIF_DRDRENR, rpc->ddr); in rpcif_dirmap_read()
610 if (rpc->bus_size == 2) in rpcif_dirmap_read()
611 memcpy_fromio_readw(buf, rpc->dirmap + from, len); in rpcif_dirmap_read()
613 memcpy_fromio(buf, rpc->dirmap + from, len); in rpcif_dirmap_read()
615 pm_runtime_put(rpc->dev); in rpcif_dirmap_read()