Lines Matching full:mmc
18 #include <linux/mmc/host.h>
19 #include <linux/mmc/mmc.h>
20 #include <linux/mmc/sdio.h>
21 #include <linux/mmc/slot-gpio.h>
31 #define DRIVER_NAME "meson-gx-mmc"
154 struct mmc_host *mmc; member
228 static void meson_mmc_get_transfer_mode(struct mmc_host *mmc, in meson_mmc_get_transfer_mode() argument
231 struct meson_host *host = mmc_priv(mmc); in meson_mmc_get_transfer_mode()
256 dev_warn_once(mmc_dev(mmc), in meson_mmc_get_transfer_mode()
267 dev_warn_once(mmc_dev(mmc), in meson_mmc_get_transfer_mode()
288 static void meson_mmc_pre_req(struct mmc_host *mmc, struct mmc_request *mrq) in meson_mmc_pre_req() argument
295 meson_mmc_get_transfer_mode(mmc, mrq); in meson_mmc_pre_req()
301 data->sg_count = dma_map_sg(mmc_dev(mmc), data->sg, data->sg_len, in meson_mmc_pre_req()
304 dev_err(mmc_dev(mmc), "dma_map_sg failed"); in meson_mmc_pre_req()
307 static void meson_mmc_post_req(struct mmc_host *mmc, struct mmc_request *mrq, in meson_mmc_post_req() argument
313 dma_unmap_sg(mmc_dev(mmc), data->sg, data->sg_len, in meson_mmc_post_req()
318 * Gating the clock on this controller is tricky. It seems the mmc clock
356 struct mmc_host *mmc = host->mmc; in meson_mmc_clk_set() local
367 mmc->actual_clock = 0; in meson_mmc_clk_set()
396 mmc->actual_clock = clk_get_rate(host->mmc_clk); in meson_mmc_clk_set()
401 mmc->actual_clock >>= 1; in meson_mmc_clk_set()
404 dev_dbg(host->dev, "clk rate: %u Hz\n", mmc->actual_clock); in meson_mmc_clk_set()
405 if (rate != mmc->actual_clock) in meson_mmc_clk_set()
416 * generating the MMC clock. Use the clock framework to create and
436 if (host->mmc->caps & MMC_CAP_SDIO_IRQ) in meson_mmc_clk_init()
499 host->mmc->f_min = clk_round_rate(host->mmc_clk, 400000); in meson_mmc_clk_init()
500 ret = clk_set_rate(host->mmc_clk, host->mmc->f_min); in meson_mmc_clk_init()
526 static int meson_mmc_resampling_tuning(struct mmc_host *mmc, u32 opcode) in meson_mmc_resampling_tuning() argument
528 struct meson_host *host = mmc_priv(mmc); in meson_mmc_resampling_tuning()
540 if (mmc_doing_retune(mmc)) in meson_mmc_resampling_tuning()
550 ret = mmc_send_tuning(mmc, opcode, NULL); in meson_mmc_resampling_tuning()
552 dev_dbg(mmc_dev(mmc), "resampling delay: %u\n", in meson_mmc_resampling_tuning()
594 static void meson_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) in meson_mmc_set_ios() argument
596 struct meson_host *host = mmc_priv(mmc); in meson_mmc_set_ios()
606 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0); in meson_mmc_set_ios()
607 mmc_regulator_disable_vqmmc(mmc); in meson_mmc_set_ios()
612 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd); in meson_mmc_set_ios()
617 mmc_regulator_enable_vqmmc(mmc); in meson_mmc_set_ios()
652 static void meson_mmc_request_done(struct mmc_host *mmc, in meson_mmc_request_done() argument
655 struct meson_host *host = mmc_priv(mmc); in meson_mmc_request_done()
659 meson_mmc_post_req(mmc, mrq, 0); in meson_mmc_request_done()
660 mmc_request_done(host->mmc, mrq); in meson_mmc_request_done()
663 static void meson_mmc_set_blksz(struct mmc_host *mmc, unsigned int blksz) in meson_mmc_set_blksz() argument
665 struct meson_host *host = mmc_priv(mmc); in meson_mmc_set_blksz()
705 static void meson_mmc_desc_chain_transfer(struct mmc_host *mmc, u32 cmd_cfg) in meson_mmc_desc_chain_transfer() argument
707 struct meson_host *host = mmc_priv(mmc); in meson_mmc_desc_chain_transfer()
719 meson_mmc_set_blksz(mmc, data->blksz); in meson_mmc_desc_chain_transfer()
790 static void meson_mmc_start_cmd(struct mmc_host *mmc, struct mmc_command *cmd) in meson_mmc_start_cmd() argument
792 struct meson_host *host = mmc_priv(mmc); in meson_mmc_start_cmd()
815 meson_mmc_desc_chain_transfer(mmc, cmd_cfg); in meson_mmc_start_cmd()
823 meson_mmc_set_blksz(mmc, data->blksz); in meson_mmc_start_cmd()
855 static int meson_mmc_validate_dram_access(struct mmc_host *mmc, struct mmc_data *data) in meson_mmc_validate_dram_access() argument
864 dev_err(mmc_dev(mmc), "unaligned sg offset %u len %u\n", in meson_mmc_validate_dram_access()
873 static void meson_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq) in meson_mmc_request() argument
875 struct meson_host *host = mmc_priv(mmc); in meson_mmc_request()
885 mrq->cmd->error = meson_mmc_validate_dram_access(mmc, mrq->data); in meson_mmc_request()
887 mmc_request_done(mmc, mrq); in meson_mmc_request()
893 meson_mmc_get_transfer_mode(mmc, mrq); in meson_mmc_request()
899 meson_mmc_pre_req(mmc, mrq); in meson_mmc_request()
904 meson_mmc_start_cmd(mmc, mrq->sbc ?: mrq->cmd); in meson_mmc_request()
907 static void meson_mmc_read_resp(struct mmc_host *mmc, struct mmc_command *cmd) in meson_mmc_read_resp() argument
909 struct meson_host *host = mmc_priv(mmc); in meson_mmc_read_resp()
921 static void __meson_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable) in __meson_mmc_enable_sdio_irq() argument
923 struct meson_host *host = mmc_priv(mmc); in __meson_mmc_enable_sdio_irq()
938 if (host->mmc->caps & MMC_CAP_SDIO_IRQ) in meson_mmc_irq()
957 __meson_mmc_enable_sdio_irq(host->mmc, 0); in meson_mmc_irq()
958 sdio_signal_irq(host->mmc); in meson_mmc_irq()
983 meson_mmc_read_resp(host->mmc, cmd); in meson_mmc_irq()
1035 meson_mmc_request_done(host->mmc, cmd->mrq); in meson_mmc_irq_thread()
1053 meson_mmc_start_cmd(host->mmc, next_cmd); in meson_mmc_irq_thread()
1055 meson_mmc_request_done(host->mmc, cmd->mrq); in meson_mmc_irq_thread()
1075 static int meson_mmc_card_busy(struct mmc_host *mmc) in meson_mmc_card_busy() argument
1077 struct meson_host *host = mmc_priv(mmc); in meson_mmc_card_busy()
1086 static int meson_mmc_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios) in meson_mmc_voltage_switch() argument
1091 if (!IS_ERR(mmc->supply.vqmmc)) { in meson_mmc_voltage_switch()
1099 ret = mmc_regulator_set_vqmmc(mmc, ios); in meson_mmc_voltage_switch()
1110 static void meson_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable) in meson_mmc_enable_sdio_irq() argument
1112 struct meson_host *host = mmc_priv(mmc); in meson_mmc_enable_sdio_irq()
1116 __meson_mmc_enable_sdio_irq(mmc, enable); in meson_mmc_enable_sdio_irq()
1120 static void meson_mmc_ack_sdio_irq(struct mmc_host *mmc) in meson_mmc_ack_sdio_irq() argument
1122 meson_mmc_enable_sdio_irq(mmc, 1); in meson_mmc_ack_sdio_irq()
1142 struct mmc_host *mmc; in meson_mmc_probe() local
1146 mmc = devm_mmc_alloc_host(&pdev->dev, sizeof(struct meson_host)); in meson_mmc_probe()
1147 if (!mmc) in meson_mmc_probe()
1149 host = mmc_priv(mmc); in meson_mmc_probe()
1150 host->mmc = mmc; in meson_mmc_probe()
1159 ret = mmc_regulator_get_supply(mmc); in meson_mmc_probe()
1163 ret = mmc_of_parse(mmc); in meson_mmc_probe()
1167 mmc->caps |= MMC_CAP_CMD23; in meson_mmc_probe()
1169 if (mmc->caps & MMC_CAP_SDIO_IRQ) in meson_mmc_probe()
1170 mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD; in meson_mmc_probe()
1189 mmc_gpio_set_cd_irq(mmc, cd_irq); in meson_mmc_probe()
1232 mmc->max_segs = 1; in meson_mmc_probe()
1234 mmc->max_blk_count = SD_EMMC_SRAM_DATA_BUF_LEN / in meson_mmc_probe()
1235 mmc->max_blk_size; in meson_mmc_probe()
1237 mmc->max_blk_count = CMD_CFG_LENGTH_MASK; in meson_mmc_probe()
1238 mmc->max_segs = SD_EMMC_DESC_BUF_LEN / in meson_mmc_probe()
1241 mmc->max_req_size = mmc->max_blk_count * mmc->max_blk_size; in meson_mmc_probe()
1242 mmc->max_seg_size = mmc->max_req_size; in meson_mmc_probe()
1249 mmc->caps2 &= ~MMC_CAP2_HS400; in meson_mmc_probe()
1253 * The MMC Controller embeds 1,5KiB of internal SRAM in meson_mmc_probe()
1263 host->bounce_buf_size = mmc->max_req_size; in meson_mmc_probe()
1282 mmc->ops = &meson_mmc_ops; in meson_mmc_probe()
1283 ret = mmc_add_host(mmc); in meson_mmc_probe()
1300 mmc_remove_host(host->mmc); in meson_mmc_remove()
1326 { .compatible = "amlogic,meson-gx-mmc", .data = &meson_gx_data },
1327 { .compatible = "amlogic,meson-gxbb-mmc", .data = &meson_gx_data },
1328 { .compatible = "amlogic,meson-gxl-mmc", .data = &meson_gx_data },
1329 { .compatible = "amlogic,meson-gxm-mmc", .data = &meson_gx_data },
1330 { .compatible = "amlogic,meson-axg-mmc", .data = &meson_axg_data },