Lines Matching full:mmc
3 * Amlogic Meson6/Meson8/Meson8b/Meson8m2 SDHC MMC host controller driver.
21 #include <linux/mmc/host.h>
22 #include <linux/mmc/mmc.h>
23 #include <linux/mmc/sdio.h>
24 #include <linux/mmc/slot-gpio.h>
38 void (*init_hw)(struct mmc_host *mmc);
39 void (*set_pdma)(struct mmc_host *mmc);
40 void (*wait_before_send)(struct mmc_host *mmc);
45 struct mmc_host *mmc; member
80 static void meson_mx_sdhc_clear_fifo(struct mmc_host *mmc) in meson_mx_sdhc_clear_fifo() argument
82 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_clear_fifo()
97 dev_warn(mmc_dev(host->mmc), in meson_mx_sdhc_clear_fifo()
103 static void meson_mx_sdhc_wait_cmd_ready(struct mmc_host *mmc) in meson_mx_sdhc_wait_cmd_ready() argument
105 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_wait_cmd_ready()
114 dev_warn(mmc_dev(mmc), in meson_mx_sdhc_wait_cmd_ready()
125 dev_warn(mmc_dev(mmc), in meson_mx_sdhc_wait_cmd_ready()
132 static void meson_mx_sdhc_start_cmd(struct mmc_host *mmc, in meson_mx_sdhc_start_cmd() argument
135 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_start_cmd()
226 meson_mx_sdhc_wait_cmd_ready(mmc); in meson_mx_sdhc_start_cmd()
229 host->platform->set_pdma(mmc); in meson_mx_sdhc_start_cmd()
232 host->platform->wait_before_send(mmc); in meson_mx_sdhc_start_cmd()
237 static void meson_mx_sdhc_disable_clks(struct mmc_host *mmc) in meson_mx_sdhc_disable_clks() argument
239 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_disable_clks()
249 static int meson_mx_sdhc_enable_clks(struct mmc_host *mmc) in meson_mx_sdhc_enable_clks() argument
251 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_enable_clks()
267 static int meson_mx_sdhc_set_clk(struct mmc_host *mmc, struct mmc_ios *ios) in meson_mx_sdhc_set_clk() argument
269 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_set_clk()
273 meson_mx_sdhc_disable_clks(mmc); in meson_mx_sdhc_set_clk()
278 dev_warn(mmc_dev(mmc), in meson_mx_sdhc_set_clk()
279 "Failed to set MMC clock to %uHz: %d\n", in meson_mx_sdhc_set_clk()
284 ret = meson_mx_sdhc_enable_clks(mmc); in meson_mx_sdhc_set_clk()
288 mmc->actual_clock = clk_get_rate(host->sd_clk); in meson_mx_sdhc_set_clk()
301 mmc->actual_clock = 0; in meson_mx_sdhc_set_clk()
307 static void meson_mx_sdhc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) in meson_mx_sdhc_set_ios() argument
309 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_set_ios()
318 if (!IS_ERR(mmc->supply.vmmc)) { in meson_mx_sdhc_set_ios()
319 host->error = mmc_regulator_set_ocr(mmc, in meson_mx_sdhc_set_ios()
320 mmc->supply.vmmc, in meson_mx_sdhc_set_ios()
332 host->error = meson_mx_sdhc_set_clk(mmc, ios); in meson_mx_sdhc_set_ios()
356 dev_err(mmc_dev(mmc), "unsupported bus width: %d\n", in meson_mx_sdhc_set_ios()
363 static int meson_mx_sdhc_map_dma(struct mmc_host *mmc, struct mmc_request *mrq) in meson_mx_sdhc_map_dma() argument
371 dma_len = dma_map_sg(mmc_dev(mmc), data->sg, data->sg_len, in meson_mx_sdhc_map_dma()
374 dev_err(mmc_dev(mmc), "dma_map_sg failed\n"); in meson_mx_sdhc_map_dma()
381 static void meson_mx_sdhc_request(struct mmc_host *mmc, struct mmc_request *mrq) in meson_mx_sdhc_request() argument
383 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_request()
387 host->error = meson_mx_sdhc_map_dma(mmc, mrq); in meson_mx_sdhc_request()
391 mmc_request_done(mmc, mrq); in meson_mx_sdhc_request()
397 meson_mx_sdhc_start_cmd(mmc, mrq->cmd); in meson_mx_sdhc_request()
400 static int meson_mx_sdhc_card_busy(struct mmc_host *mmc) in meson_mx_sdhc_card_busy() argument
402 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_card_busy()
409 static bool meson_mx_sdhc_tuning_point_matches(struct mmc_host *mmc, in meson_mx_sdhc_tuning_point_matches() argument
416 ret = mmc_send_tuning(mmc, opcode, NULL); in meson_mx_sdhc_tuning_point_matches()
424 static int meson_mx_sdhc_execute_tuning(struct mmc_host *mmc, u32 opcode) in meson_mx_sdhc_execute_tuning() argument
426 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_execute_tuning()
447 if (meson_mx_sdhc_tuning_point_matches(mmc, opcode)) { in meson_mx_sdhc_execute_tuning()
451 dev_dbg(mmc_dev(mmc), in meson_mx_sdhc_execute_tuning()
462 dev_dbg(mmc_dev(mmc), in meson_mx_sdhc_execute_tuning()
490 dev_dbg(mmc_dev(mmc), "Tuned RX clock phase to %u\n", new_phase); in meson_mx_sdhc_execute_tuning()
507 struct mmc_host *mmc = host->mmc; in meson_mx_sdhc_request_done() local
518 mmc_request_done(mmc, mrq); in meson_mx_sdhc_request_done()
565 dev_dbg(mmc_dev(host->mmc), "CMD%d error, ISTA: 0x%08x\n", in meson_mx_sdhc_irq()
584 meson_mx_sdhc_wait_cmd_ready(host->mmc); in meson_mx_sdhc_irq_thread()
600 dma_unmap_sg(mmc_dev(host->mmc), cmd->data->sg, in meson_mx_sdhc_irq_thread()
606 meson_mx_sdhc_wait_cmd_ready(host->mmc); in meson_mx_sdhc_irq_thread()
626 meson_mx_sdhc_clear_fifo(host->mmc); in meson_mx_sdhc_irq_thread()
633 static void meson_mx_sdhc_init_hw_meson8(struct mmc_host *mmc) in meson_mx_sdhc_init_hw_meson8() argument
635 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_init_hw_meson8()
649 static void meson_mx_sdhc_set_pdma_meson8(struct mmc_host *mmc) in meson_mx_sdhc_set_pdma_meson8() argument
651 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_set_pdma_meson8()
675 static void meson_mx_sdhc_wait_before_send_meson8(struct mmc_host *mmc) in meson_mx_sdhc_wait_before_send_meson8() argument
677 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_wait_before_send_meson8()
686 dev_warn(mmc_dev(mmc), in meson_mx_sdhc_wait_before_send_meson8()
695 dev_warn(mmc_dev(mmc), in meson_mx_sdhc_wait_before_send_meson8()
700 static void meson_mx_sdhc_init_hw_meson8m2(struct mmc_host *mmc) in meson_mx_sdhc_init_hw_meson8m2() argument
702 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_init_hw_meson8m2()
716 static void meson_mx_sdhc_set_pdma_meson8m2(struct mmc_host *mmc) in meson_mx_sdhc_set_pdma_meson8m2() argument
718 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_set_pdma_meson8m2()
724 static void meson_mx_sdhc_init_hw(struct mmc_host *mmc) in meson_mx_sdhc_init_hw() argument
726 struct meson_mx_sdhc_host *host = mmc_priv(mmc); in meson_mx_sdhc_init_hw()
753 host->platform->init_hw(mmc); in meson_mx_sdhc_init_hw()
769 struct mmc_host *mmc; in meson_mx_sdhc_probe() local
773 mmc = mmc_alloc_host(sizeof(*host), dev); in meson_mx_sdhc_probe()
774 if (!mmc) in meson_mx_sdhc_probe()
777 ret = devm_add_action_or_reset(dev, meason_mx_mmc_free_host, mmc); in meson_mx_sdhc_probe()
783 host = mmc_priv(mmc); in meson_mx_sdhc_probe()
784 host->mmc = mmc; in meson_mx_sdhc_probe()
812 meson_mx_sdhc_init_hw(mmc); in meson_mx_sdhc_probe()
821 ret = mmc_regulator_get_supply(mmc); in meson_mx_sdhc_probe()
825 mmc->max_req_size = SZ_128K; in meson_mx_sdhc_probe()
826 mmc->max_seg_size = mmc->max_req_size; in meson_mx_sdhc_probe()
827 mmc->max_blk_count = FIELD_GET(MESON_SDHC_SEND_TOTAL_PACK, ~0); in meson_mx_sdhc_probe()
828 mmc->max_blk_size = MESON_SDHC_MAX_BLK_SIZE; in meson_mx_sdhc_probe()
829 mmc->max_busy_timeout = 30 * MSEC_PER_SEC; in meson_mx_sdhc_probe()
830 mmc->f_min = clk_round_rate(host->sd_clk, 1); in meson_mx_sdhc_probe()
831 mmc->f_max = clk_round_rate(host->sd_clk, ULONG_MAX); in meson_mx_sdhc_probe()
832 mmc->max_current_180 = 300; in meson_mx_sdhc_probe()
833 mmc->max_current_330 = 300; in meson_mx_sdhc_probe()
834 mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_HW_RESET; in meson_mx_sdhc_probe()
835 mmc->ops = &meson_mx_sdhc_ops; in meson_mx_sdhc_probe()
837 ret = mmc_of_parse(mmc); in meson_mx_sdhc_probe()
853 ret = mmc_add_host(mmc); in meson_mx_sdhc_probe()
868 mmc_remove_host(host->mmc); in meson_mx_sdhc_remove()
870 meson_mx_sdhc_disable_clks(host->mmc); in meson_mx_sdhc_remove()