Lines Matching full:nfc
251 int (*set_cdev)(struct stm32_fmc2_nfc *nfc);
294 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_timings_init() local
300 regmap_update_bits(nfc->regmap, FMC2_PCR, in stm32_fmc2_nfc_timings_init()
310 regmap_write(nfc->regmap, FMC2_PMEM, pmem); in stm32_fmc2_nfc_timings_init()
317 regmap_write(nfc->regmap, FMC2_PATT, patt); in stm32_fmc2_nfc_timings_init()
322 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_setup() local
344 regmap_update_bits(nfc->regmap, FMC2_PCR, pcr_mask, pcr); in stm32_fmc2_nfc_setup()
349 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_select_chip() local
354 if (nand->cs_used[chipnr] == nfc->cs_sel) in stm32_fmc2_nfc_select_chip()
357 nfc->cs_sel = nand->cs_used[chipnr]; in stm32_fmc2_nfc_select_chip()
361 if (nfc->dma_tx_ch) { in stm32_fmc2_nfc_select_chip()
363 dma_cfg.dst_addr = nfc->data_phys_addr[nfc->cs_sel]; in stm32_fmc2_nfc_select_chip()
365 dma_cfg.dst_maxburst = nfc->tx_dma_max_burst / in stm32_fmc2_nfc_select_chip()
368 ret = dmaengine_slave_config(nfc->dma_tx_ch, &dma_cfg); in stm32_fmc2_nfc_select_chip()
370 dev_err(nfc->dev, "tx DMA engine slave config failed\n"); in stm32_fmc2_nfc_select_chip()
375 if (nfc->dma_rx_ch) { in stm32_fmc2_nfc_select_chip()
377 dma_cfg.src_addr = nfc->data_phys_addr[nfc->cs_sel]; in stm32_fmc2_nfc_select_chip()
379 dma_cfg.src_maxburst = nfc->rx_dma_max_burst / in stm32_fmc2_nfc_select_chip()
382 ret = dmaengine_slave_config(nfc->dma_rx_ch, &dma_cfg); in stm32_fmc2_nfc_select_chip()
384 dev_err(nfc->dev, "rx DMA engine slave config failed\n"); in stm32_fmc2_nfc_select_chip()
389 if (nfc->dma_ecc_ch) { in stm32_fmc2_nfc_select_chip()
395 dma_cfg.src_addr = nfc->io_phys_addr; in stm32_fmc2_nfc_select_chip()
400 ret = dmaengine_slave_config(nfc->dma_ecc_ch, &dma_cfg); in stm32_fmc2_nfc_select_chip()
402 dev_err(nfc->dev, "ECC DMA engine slave config failed\n"); in stm32_fmc2_nfc_select_chip()
407 nfc->dma_ecc_len = chip->ecc.strength == FMC2_ECC_HAM ? in stm32_fmc2_nfc_select_chip()
414 static void stm32_fmc2_nfc_set_buswidth_16(struct stm32_fmc2_nfc *nfc, bool set) in stm32_fmc2_nfc_set_buswidth_16() argument
421 regmap_update_bits(nfc->regmap, FMC2_PCR, FMC2_PCR_PWID, pcr); in stm32_fmc2_nfc_set_buswidth_16()
424 static void stm32_fmc2_nfc_set_ecc(struct stm32_fmc2_nfc *nfc, bool enable) in stm32_fmc2_nfc_set_ecc() argument
426 regmap_update_bits(nfc->regmap, FMC2_PCR, FMC2_PCR_ECCEN, in stm32_fmc2_nfc_set_ecc()
430 static void stm32_fmc2_nfc_enable_seq_irq(struct stm32_fmc2_nfc *nfc) in stm32_fmc2_nfc_enable_seq_irq() argument
432 nfc->irq_state = FMC2_IRQ_SEQ; in stm32_fmc2_nfc_enable_seq_irq()
434 regmap_update_bits(nfc->regmap, FMC2_CSQIER, in stm32_fmc2_nfc_enable_seq_irq()
438 static void stm32_fmc2_nfc_disable_seq_irq(struct stm32_fmc2_nfc *nfc) in stm32_fmc2_nfc_disable_seq_irq() argument
440 regmap_update_bits(nfc->regmap, FMC2_CSQIER, FMC2_CSQIER_TCIE, 0); in stm32_fmc2_nfc_disable_seq_irq()
442 nfc->irq_state = FMC2_IRQ_UNKNOWN; in stm32_fmc2_nfc_disable_seq_irq()
445 static void stm32_fmc2_nfc_clear_seq_irq(struct stm32_fmc2_nfc *nfc) in stm32_fmc2_nfc_clear_seq_irq() argument
447 regmap_write(nfc->regmap, FMC2_CSQICR, FMC2_CSQICR_CLEAR_IRQ); in stm32_fmc2_nfc_clear_seq_irq()
450 static void stm32_fmc2_nfc_enable_bch_irq(struct stm32_fmc2_nfc *nfc, int mode) in stm32_fmc2_nfc_enable_bch_irq() argument
452 nfc->irq_state = FMC2_IRQ_BCH; in stm32_fmc2_nfc_enable_bch_irq()
455 regmap_update_bits(nfc->regmap, FMC2_BCHIER, in stm32_fmc2_nfc_enable_bch_irq()
458 regmap_update_bits(nfc->regmap, FMC2_BCHIER, in stm32_fmc2_nfc_enable_bch_irq()
462 static void stm32_fmc2_nfc_disable_bch_irq(struct stm32_fmc2_nfc *nfc) in stm32_fmc2_nfc_disable_bch_irq() argument
464 regmap_update_bits(nfc->regmap, FMC2_BCHIER, in stm32_fmc2_nfc_disable_bch_irq()
467 nfc->irq_state = FMC2_IRQ_UNKNOWN; in stm32_fmc2_nfc_disable_bch_irq()
470 static void stm32_fmc2_nfc_clear_bch_irq(struct stm32_fmc2_nfc *nfc) in stm32_fmc2_nfc_clear_bch_irq() argument
472 regmap_write(nfc->regmap, FMC2_BCHICR, FMC2_BCHICR_CLEAR_IRQ); in stm32_fmc2_nfc_clear_bch_irq()
481 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_hwctl() local
483 stm32_fmc2_nfc_set_ecc(nfc, false); in stm32_fmc2_nfc_hwctl()
486 regmap_update_bits(nfc->regmap, FMC2_PCR, FMC2_PCR_WEN, in stm32_fmc2_nfc_hwctl()
489 reinit_completion(&nfc->complete); in stm32_fmc2_nfc_hwctl()
490 stm32_fmc2_nfc_clear_bch_irq(nfc); in stm32_fmc2_nfc_hwctl()
491 stm32_fmc2_nfc_enable_bch_irq(nfc, mode); in stm32_fmc2_nfc_hwctl()
494 stm32_fmc2_nfc_set_ecc(nfc, true); in stm32_fmc2_nfc_hwctl()
512 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_ham_calculate() local
516 ret = regmap_read_poll_timeout(nfc->regmap, FMC2_SR, sr, in stm32_fmc2_nfc_ham_calculate()
520 dev_err(nfc->dev, "ham timeout\n"); in stm32_fmc2_nfc_ham_calculate()
524 regmap_read(nfc->regmap, FMC2_HECCR, &heccr); in stm32_fmc2_nfc_ham_calculate()
526 stm32_fmc2_nfc_set_ecc(nfc, false); in stm32_fmc2_nfc_ham_calculate()
593 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_bch_calculate() local
597 if (!wait_for_completion_timeout(&nfc->complete, in stm32_fmc2_nfc_bch_calculate()
599 dev_err(nfc->dev, "bch timeout\n"); in stm32_fmc2_nfc_bch_calculate()
600 stm32_fmc2_nfc_disable_bch_irq(nfc); in stm32_fmc2_nfc_bch_calculate()
605 regmap_read(nfc->regmap, FMC2_BCHPBR1, &bchpbr); in stm32_fmc2_nfc_bch_calculate()
611 regmap_read(nfc->regmap, FMC2_BCHPBR2, &bchpbr); in stm32_fmc2_nfc_bch_calculate()
619 regmap_read(nfc->regmap, FMC2_BCHPBR3, &bchpbr); in stm32_fmc2_nfc_bch_calculate()
625 regmap_read(nfc->regmap, FMC2_BCHPBR4, &bchpbr); in stm32_fmc2_nfc_bch_calculate()
629 stm32_fmc2_nfc_set_ecc(nfc, false); in stm32_fmc2_nfc_bch_calculate()
676 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_bch_correct() local
680 if (!wait_for_completion_timeout(&nfc->complete, in stm32_fmc2_nfc_bch_correct()
682 dev_err(nfc->dev, "bch timeout\n"); in stm32_fmc2_nfc_bch_correct()
683 stm32_fmc2_nfc_disable_bch_irq(nfc); in stm32_fmc2_nfc_bch_correct()
687 regmap_bulk_read(nfc->regmap, FMC2_BCHDSR0, ecc_sta, 5); in stm32_fmc2_nfc_bch_correct()
689 stm32_fmc2_nfc_set_ecc(nfc, false); in stm32_fmc2_nfc_bch_correct()
760 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_rw_page_init() local
769 regmap_update_bits(nfc->regmap, FMC2_PCR, FMC2_PCR_WEN, in stm32_fmc2_nfc_rw_page_init()
832 cfg[4] = FIELD_PREP(FMC2_CSQCAR2_NANDCEN, nfc->cs_sel); in stm32_fmc2_nfc_rw_page_init()
844 regmap_bulk_write(nfc->regmap, FMC2_CSQCFGR1, cfg, 5); in stm32_fmc2_nfc_rw_page_init()
856 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_xfer() local
859 struct dma_chan *dma_ch = nfc->dma_rx_ch; in stm32_fmc2_nfc_xfer()
872 dma_ch = nfc->dma_tx_ch; in stm32_fmc2_nfc_xfer()
875 for_each_sg(nfc->dma_data_sg.sgl, sg, eccsteps, s) { in stm32_fmc2_nfc_xfer()
880 ret = dma_map_sg(nfc->dev, nfc->dma_data_sg.sgl, in stm32_fmc2_nfc_xfer()
885 desc_data = dmaengine_prep_slave_sg(dma_ch, nfc->dma_data_sg.sgl, in stm32_fmc2_nfc_xfer()
893 reinit_completion(&nfc->dma_data_complete); in stm32_fmc2_nfc_xfer()
894 reinit_completion(&nfc->complete); in stm32_fmc2_nfc_xfer()
896 desc_data->callback_param = &nfc->dma_data_complete; in stm32_fmc2_nfc_xfer()
905 p = nfc->ecc_buf; in stm32_fmc2_nfc_xfer()
906 for_each_sg(nfc->dma_ecc_sg.sgl, sg, eccsteps, s) { in stm32_fmc2_nfc_xfer()
907 sg_set_buf(sg, p, nfc->dma_ecc_len); in stm32_fmc2_nfc_xfer()
908 p += nfc->dma_ecc_len; in stm32_fmc2_nfc_xfer()
911 ret = dma_map_sg(nfc->dev, nfc->dma_ecc_sg.sgl, in stm32_fmc2_nfc_xfer()
918 desc_ecc = dmaengine_prep_slave_sg(nfc->dma_ecc_ch, in stm32_fmc2_nfc_xfer()
919 nfc->dma_ecc_sg.sgl, in stm32_fmc2_nfc_xfer()
927 reinit_completion(&nfc->dma_ecc_complete); in stm32_fmc2_nfc_xfer()
929 desc_ecc->callback_param = &nfc->dma_ecc_complete; in stm32_fmc2_nfc_xfer()
934 dma_async_issue_pending(nfc->dma_ecc_ch); in stm32_fmc2_nfc_xfer()
937 stm32_fmc2_nfc_clear_seq_irq(nfc); in stm32_fmc2_nfc_xfer()
938 stm32_fmc2_nfc_enable_seq_irq(nfc); in stm32_fmc2_nfc_xfer()
941 regmap_update_bits(nfc->regmap, FMC2_CSQCR, in stm32_fmc2_nfc_xfer()
945 if (!wait_for_completion_timeout(&nfc->complete, timeout)) { in stm32_fmc2_nfc_xfer()
946 dev_err(nfc->dev, "seq timeout\n"); in stm32_fmc2_nfc_xfer()
947 stm32_fmc2_nfc_disable_seq_irq(nfc); in stm32_fmc2_nfc_xfer()
950 dmaengine_terminate_all(nfc->dma_ecc_ch); in stm32_fmc2_nfc_xfer()
956 if (!wait_for_completion_timeout(&nfc->dma_data_complete, timeout)) { in stm32_fmc2_nfc_xfer()
957 dev_err(nfc->dev, "data DMA timeout\n"); in stm32_fmc2_nfc_xfer()
964 if (!wait_for_completion_timeout(&nfc->dma_ecc_complete, in stm32_fmc2_nfc_xfer()
966 dev_err(nfc->dev, "ECC DMA timeout\n"); in stm32_fmc2_nfc_xfer()
967 dmaengine_terminate_all(nfc->dma_ecc_ch); in stm32_fmc2_nfc_xfer()
974 dma_unmap_sg(nfc->dev, nfc->dma_ecc_sg.sgl, in stm32_fmc2_nfc_xfer()
978 dma_unmap_sg(nfc->dev, nfc->dma_data_sg.sgl, eccsteps, dma_data_dir); in stm32_fmc2_nfc_xfer()
1035 static u16 stm32_fmc2_nfc_get_mapping_status(struct stm32_fmc2_nfc *nfc) in stm32_fmc2_nfc_get_mapping_status() argument
1039 regmap_read(nfc->regmap, FMC2_CSQEMSR, &csqemsr); in stm32_fmc2_nfc_get_mapping_status()
1048 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_seq_correct() local
1053 u32 *ecc_sta = (u32 *)nfc->ecc_buf; in stm32_fmc2_nfc_seq_correct()
1054 u16 sta_map = stm32_fmc2_nfc_get_mapping_status(nfc); in stm32_fmc2_nfc_seq_correct()
1107 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_seq_read_page() local
1125 sta_map = stm32_fmc2_nfc_get_mapping_status(nfc); in stm32_fmc2_nfc_seq_read_page()
1181 struct stm32_fmc2_nfc *nfc = (struct stm32_fmc2_nfc *)dev_id; in stm32_fmc2_nfc_irq() local
1183 if (nfc->irq_state == FMC2_IRQ_SEQ) in stm32_fmc2_nfc_irq()
1185 stm32_fmc2_nfc_disable_seq_irq(nfc); in stm32_fmc2_nfc_irq()
1186 else if (nfc->irq_state == FMC2_IRQ_BCH) in stm32_fmc2_nfc_irq()
1188 stm32_fmc2_nfc_disable_bch_irq(nfc); in stm32_fmc2_nfc_irq()
1190 complete(&nfc->complete); in stm32_fmc2_nfc_irq()
1198 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_read_data() local
1199 void __iomem *io_addr_r = nfc->data_base[nfc->cs_sel]; in stm32_fmc2_nfc_read_data()
1203 stm32_fmc2_nfc_set_buswidth_16(nfc, false); in stm32_fmc2_nfc_read_data()
1239 stm32_fmc2_nfc_set_buswidth_16(nfc, true); in stm32_fmc2_nfc_read_data()
1245 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_write_data() local
1246 void __iomem *io_addr_w = nfc->data_base[nfc->cs_sel]; in stm32_fmc2_nfc_write_data()
1250 stm32_fmc2_nfc_set_buswidth_16(nfc, false); in stm32_fmc2_nfc_write_data()
1286 stm32_fmc2_nfc_set_buswidth_16(nfc, true); in stm32_fmc2_nfc_write_data()
1292 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_waitrdy() local
1297 if (regmap_read_poll_timeout(nfc->regmap, FMC2_SR, sr, in stm32_fmc2_nfc_waitrdy()
1300 dev_warn(nfc->dev, "Waitrdy timeout\n"); in stm32_fmc2_nfc_waitrdy()
1307 regmap_write(nfc->regmap, FMC2_ICR, FMC2_ICR_CIHLF); in stm32_fmc2_nfc_waitrdy()
1310 return regmap_read_poll_timeout(nfc->regmap, FMC2_ISR, isr, in stm32_fmc2_nfc_waitrdy()
1319 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_exec_op() local
1337 nfc->cmd_base[nfc->cs_sel]); in stm32_fmc2_nfc_exec_op()
1343 nfc->addr_base[nfc->cs_sel]); in stm32_fmc2_nfc_exec_op()
1368 static void stm32_fmc2_nfc_init(struct stm32_fmc2_nfc *nfc) in stm32_fmc2_nfc_init() argument
1372 regmap_read(nfc->regmap, FMC2_PCR, &pcr); in stm32_fmc2_nfc_init()
1375 nfc->cs_sel = -1; in stm32_fmc2_nfc_init()
1403 if (nfc->dev == nfc->cdev) in stm32_fmc2_nfc_init()
1404 regmap_update_bits(nfc->regmap, FMC2_BCR1, in stm32_fmc2_nfc_init()
1407 regmap_write(nfc->regmap, FMC2_PCR, pcr); in stm32_fmc2_nfc_init()
1408 regmap_write(nfc->regmap, FMC2_PMEM, FMC2_PMEM_DEFAULT); in stm32_fmc2_nfc_init()
1409 regmap_write(nfc->regmap, FMC2_PATT, FMC2_PATT_DEFAULT); in stm32_fmc2_nfc_init()
1415 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_calc_timings() local
1418 unsigned long hclk = clk_get_rate(nfc->clk); in stm32_fmc2_nfc_calc_timings()
1563 static int stm32_fmc2_nfc_dma_setup(struct stm32_fmc2_nfc *nfc) in stm32_fmc2_nfc_dma_setup() argument
1568 nfc->dma_tx_ch = dma_request_chan(nfc->dev, "tx"); in stm32_fmc2_nfc_dma_setup()
1569 if (IS_ERR(nfc->dma_tx_ch)) { in stm32_fmc2_nfc_dma_setup()
1570 ret = PTR_ERR(nfc->dma_tx_ch); in stm32_fmc2_nfc_dma_setup()
1572 dev_err(nfc->dev, in stm32_fmc2_nfc_dma_setup()
1574 nfc->dma_tx_ch = NULL; in stm32_fmc2_nfc_dma_setup()
1578 ret = dma_get_slave_caps(nfc->dma_tx_ch, &caps); in stm32_fmc2_nfc_dma_setup()
1581 nfc->tx_dma_max_burst = caps.max_burst; in stm32_fmc2_nfc_dma_setup()
1583 nfc->dma_rx_ch = dma_request_chan(nfc->dev, "rx"); in stm32_fmc2_nfc_dma_setup()
1584 if (IS_ERR(nfc->dma_rx_ch)) { in stm32_fmc2_nfc_dma_setup()
1585 ret = PTR_ERR(nfc->dma_rx_ch); in stm32_fmc2_nfc_dma_setup()
1587 dev_err(nfc->dev, in stm32_fmc2_nfc_dma_setup()
1589 nfc->dma_rx_ch = NULL; in stm32_fmc2_nfc_dma_setup()
1593 ret = dma_get_slave_caps(nfc->dma_rx_ch, &caps); in stm32_fmc2_nfc_dma_setup()
1596 nfc->rx_dma_max_burst = caps.max_burst; in stm32_fmc2_nfc_dma_setup()
1598 nfc->dma_ecc_ch = dma_request_chan(nfc->dev, "ecc"); in stm32_fmc2_nfc_dma_setup()
1599 if (IS_ERR(nfc->dma_ecc_ch)) { in stm32_fmc2_nfc_dma_setup()
1600 ret = PTR_ERR(nfc->dma_ecc_ch); in stm32_fmc2_nfc_dma_setup()
1602 dev_err(nfc->dev, in stm32_fmc2_nfc_dma_setup()
1604 nfc->dma_ecc_ch = NULL; in stm32_fmc2_nfc_dma_setup()
1608 ret = sg_alloc_table(&nfc->dma_ecc_sg, FMC2_MAX_SG, GFP_KERNEL); in stm32_fmc2_nfc_dma_setup()
1613 nfc->ecc_buf = devm_kzalloc(nfc->dev, FMC2_MAX_ECC_BUF_LEN, GFP_KERNEL); in stm32_fmc2_nfc_dma_setup()
1614 if (!nfc->ecc_buf) in stm32_fmc2_nfc_dma_setup()
1617 ret = sg_alloc_table(&nfc->dma_data_sg, FMC2_MAX_SG, GFP_KERNEL); in stm32_fmc2_nfc_dma_setup()
1621 init_completion(&nfc->dma_data_complete); in stm32_fmc2_nfc_dma_setup()
1622 init_completion(&nfc->dma_ecc_complete); in stm32_fmc2_nfc_dma_setup()
1628 dev_warn(nfc->dev, in stm32_fmc2_nfc_dma_setup()
1638 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_nand_callbacks_setup() local
1644 if (nfc->dma_tx_ch && nfc->dma_rx_ch && nfc->dma_ecc_ch) { in stm32_fmc2_nfc_nand_callbacks_setup()
1731 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_attach_chip() local
1743 dev_err(nfc->dev, in stm32_fmc2_nfc_attach_chip()
1758 dev_err(nfc->dev, "no valid ECC settings set\n"); in stm32_fmc2_nfc_attach_chip()
1763 dev_err(nfc->dev, "nand page size is not supported\n"); in stm32_fmc2_nfc_attach_chip()
1797 static int stm32_fmc2_nfc_parse_child(struct stm32_fmc2_nfc *nfc, in stm32_fmc2_nfc_parse_child() argument
1800 struct stm32_fmc2_nand *nand = &nfc->nand; in stm32_fmc2_nfc_parse_child()
1809 dev_err(nfc->dev, "invalid reg property size\n"); in stm32_fmc2_nfc_parse_child()
1816 dev_err(nfc->dev, "could not retrieve reg property: %d\n", in stm32_fmc2_nfc_parse_child()
1821 if (cs >= nfc->data->max_ncs) { in stm32_fmc2_nfc_parse_child()
1822 dev_err(nfc->dev, "invalid reg value: %d\n", cs); in stm32_fmc2_nfc_parse_child()
1826 if (nfc->cs_assigned & BIT(cs)) { in stm32_fmc2_nfc_parse_child()
1827 dev_err(nfc->dev, "cs already assigned: %d\n", cs); in stm32_fmc2_nfc_parse_child()
1831 nfc->cs_assigned |= BIT(cs); in stm32_fmc2_nfc_parse_child()
1835 nand->wp_gpio = devm_fwnode_gpiod_get(nfc->dev, of_fwnode_handle(dn), in stm32_fmc2_nfc_parse_child()
1840 return dev_err_probe(nfc->dev, ret, in stm32_fmc2_nfc_parse_child()
1851 static int stm32_fmc2_nfc_parse_dt(struct stm32_fmc2_nfc *nfc) in stm32_fmc2_nfc_parse_dt() argument
1853 struct device_node *dn = nfc->dev->of_node; in stm32_fmc2_nfc_parse_dt()
1858 dev_err(nfc->dev, "NAND chip not defined\n"); in stm32_fmc2_nfc_parse_dt()
1863 dev_err(nfc->dev, "too many NAND chips defined\n"); in stm32_fmc2_nfc_parse_dt()
1868 ret = stm32_fmc2_nfc_parse_child(nfc, child); in stm32_fmc2_nfc_parse_dt()
1876 static int stm32_fmc2_nfc_set_cdev(struct stm32_fmc2_nfc *nfc) in stm32_fmc2_nfc_set_cdev() argument
1878 struct device *dev = nfc->dev; in stm32_fmc2_nfc_set_cdev()
1885 if (of_device_is_compatible(dev->of_node, "st,stm32mp1-fmc2-nfc")) { in stm32_fmc2_nfc_set_cdev()
1887 nfc->cdev = dev->parent; in stm32_fmc2_nfc_set_cdev()
1898 nfc->cdev = dev; in stm32_fmc2_nfc_set_cdev()
1907 struct stm32_fmc2_nfc *nfc; in stm32_fmc2_nfc_probe() local
1916 nfc = devm_kzalloc(dev, sizeof(*nfc), GFP_KERNEL); in stm32_fmc2_nfc_probe()
1917 if (!nfc) in stm32_fmc2_nfc_probe()
1920 nfc->dev = dev; in stm32_fmc2_nfc_probe()
1921 nand_controller_init(&nfc->base); in stm32_fmc2_nfc_probe()
1922 nfc->base.ops = &stm32_fmc2_nfc_controller_ops; in stm32_fmc2_nfc_probe()
1924 nfc->data = of_device_get_match_data(dev); in stm32_fmc2_nfc_probe()
1925 if (!nfc->data) in stm32_fmc2_nfc_probe()
1928 if (nfc->data->set_cdev) { in stm32_fmc2_nfc_probe()
1929 ret = nfc->data->set_cdev(nfc); in stm32_fmc2_nfc_probe()
1933 nfc->cdev = dev->parent; in stm32_fmc2_nfc_probe()
1936 ret = stm32_fmc2_nfc_parse_dt(nfc); in stm32_fmc2_nfc_probe()
1940 ret = of_address_to_resource(nfc->cdev->of_node, 0, &cres); in stm32_fmc2_nfc_probe()
1944 nfc->io_phys_addr = cres.start; in stm32_fmc2_nfc_probe()
1946 nfc->regmap = device_node_to_regmap(nfc->cdev->of_node); in stm32_fmc2_nfc_probe()
1947 if (IS_ERR(nfc->regmap)) in stm32_fmc2_nfc_probe()
1948 return PTR_ERR(nfc->regmap); in stm32_fmc2_nfc_probe()
1950 if (nfc->dev == nfc->cdev) in stm32_fmc2_nfc_probe()
1953 for (chip_cs = 0, mem_region = start_region; chip_cs < nfc->data->max_ncs; in stm32_fmc2_nfc_probe()
1955 if (!(nfc->cs_assigned & BIT(chip_cs))) in stm32_fmc2_nfc_probe()
1958 nfc->data_base[chip_cs] = devm_platform_get_and_ioremap_resource(pdev, in stm32_fmc2_nfc_probe()
1960 if (IS_ERR(nfc->data_base[chip_cs])) in stm32_fmc2_nfc_probe()
1961 return PTR_ERR(nfc->data_base[chip_cs]); in stm32_fmc2_nfc_probe()
1963 nfc->data_phys_addr[chip_cs] = res->start; in stm32_fmc2_nfc_probe()
1965 nfc->cmd_base[chip_cs] = devm_platform_ioremap_resource(pdev, mem_region + 1); in stm32_fmc2_nfc_probe()
1966 if (IS_ERR(nfc->cmd_base[chip_cs])) in stm32_fmc2_nfc_probe()
1967 return PTR_ERR(nfc->cmd_base[chip_cs]); in stm32_fmc2_nfc_probe()
1969 nfc->addr_base[chip_cs] = devm_platform_ioremap_resource(pdev, mem_region + 2); in stm32_fmc2_nfc_probe()
1970 if (IS_ERR(nfc->addr_base[chip_cs])) in stm32_fmc2_nfc_probe()
1971 return PTR_ERR(nfc->addr_base[chip_cs]); in stm32_fmc2_nfc_probe()
1979 dev_name(dev), nfc); in stm32_fmc2_nfc_probe()
1985 init_completion(&nfc->complete); in stm32_fmc2_nfc_probe()
1987 nfc->clk = devm_clk_get_enabled(nfc->cdev, NULL); in stm32_fmc2_nfc_probe()
1988 if (IS_ERR(nfc->clk)) { in stm32_fmc2_nfc_probe()
1990 return PTR_ERR(nfc->clk); in stm32_fmc2_nfc_probe()
2003 ret = stm32_fmc2_nfc_dma_setup(nfc); in stm32_fmc2_nfc_probe()
2007 stm32_fmc2_nfc_init(nfc); in stm32_fmc2_nfc_probe()
2009 nand = &nfc->nand; in stm32_fmc2_nfc_probe()
2014 chip->controller = &nfc->base; in stm32_fmc2_nfc_probe()
2029 platform_set_drvdata(pdev, nfc); in stm32_fmc2_nfc_probe()
2040 if (nfc->dma_ecc_ch) in stm32_fmc2_nfc_probe()
2041 dma_release_channel(nfc->dma_ecc_ch); in stm32_fmc2_nfc_probe()
2042 if (nfc->dma_tx_ch) in stm32_fmc2_nfc_probe()
2043 dma_release_channel(nfc->dma_tx_ch); in stm32_fmc2_nfc_probe()
2044 if (nfc->dma_rx_ch) in stm32_fmc2_nfc_probe()
2045 dma_release_channel(nfc->dma_rx_ch); in stm32_fmc2_nfc_probe()
2047 sg_free_table(&nfc->dma_data_sg); in stm32_fmc2_nfc_probe()
2048 sg_free_table(&nfc->dma_ecc_sg); in stm32_fmc2_nfc_probe()
2055 struct stm32_fmc2_nfc *nfc = platform_get_drvdata(pdev); in stm32_fmc2_nfc_remove() local
2056 struct stm32_fmc2_nand *nand = &nfc->nand; in stm32_fmc2_nfc_remove()
2064 if (nfc->dma_ecc_ch) in stm32_fmc2_nfc_remove()
2065 dma_release_channel(nfc->dma_ecc_ch); in stm32_fmc2_nfc_remove()
2066 if (nfc->dma_tx_ch) in stm32_fmc2_nfc_remove()
2067 dma_release_channel(nfc->dma_tx_ch); in stm32_fmc2_nfc_remove()
2068 if (nfc->dma_rx_ch) in stm32_fmc2_nfc_remove()
2069 dma_release_channel(nfc->dma_rx_ch); in stm32_fmc2_nfc_remove()
2071 sg_free_table(&nfc->dma_data_sg); in stm32_fmc2_nfc_remove()
2072 sg_free_table(&nfc->dma_ecc_sg); in stm32_fmc2_nfc_remove()
2079 struct stm32_fmc2_nfc *nfc = dev_get_drvdata(dev); in stm32_fmc2_nfc_suspend() local
2080 struct stm32_fmc2_nand *nand = &nfc->nand; in stm32_fmc2_nfc_suspend()
2082 clk_disable_unprepare(nfc->clk); in stm32_fmc2_nfc_suspend()
2093 struct stm32_fmc2_nfc *nfc = dev_get_drvdata(dev); in stm32_fmc2_nfc_resume() local
2094 struct stm32_fmc2_nand *nand = &nfc->nand; in stm32_fmc2_nfc_resume()
2099 ret = clk_prepare_enable(nfc->clk); in stm32_fmc2_nfc_resume()
2105 stm32_fmc2_nfc_init(nfc); in stm32_fmc2_nfc_resume()
2109 for (chip_cs = 0; chip_cs < nfc->data->max_ncs; chip_cs++) { in stm32_fmc2_nfc_resume()
2110 if (!(nfc->cs_assigned & BIT(chip_cs))) in stm32_fmc2_nfc_resume()
2137 .compatible = "st,stm32mp1-fmc2-nfc",
2141 .compatible = "st,stm32mp25-fmc2-nfc",
2161 MODULE_DESCRIPTION("STMicroelectronics STM32 FMC2 NFC driver");