11 #include <mmc.h>
16 static inline void *get_regbase(const struct mmc *mmc)  in get_regbase()  argument
18 	struct meson_mmc_platdata *pdata = mmc->priv;  in get_regbase()
23 static inline uint32_t meson_read(struct mmc *mmc, int offset)  in meson_read()  argument
25 	return readl(get_regbase(mmc) + offset);  in meson_read()
28 static inline void meson_write(struct mmc *mmc, uint32_t val, int offset)  in meson_write()  argument
30 	writel(val, get_regbase(mmc) + offset);  in meson_write()
33 static void meson_mmc_config_clock(struct mmc *mmc)  in meson_mmc_config_clock()  argument
39 	if (mmc->clock > 16000000) {  in meson_mmc_config_clock()
46 	clk_div = DIV_ROUND_UP(clk, mmc->clock);  in meson_mmc_config_clock()
58 	meson_write(mmc, meson_mmc_clk, MESON_SD_EMMC_CLOCK);  in meson_mmc_config_clock()
63 	struct mmc *mmc = mmc_get_mmc_dev(dev);  in meson_dm_mmc_set_ios()  local
66 	meson_mmc_config_clock(mmc);  in meson_dm_mmc_set_ios()
68 	meson_mmc_cfg = meson_read(mmc, MESON_SD_EMMC_CFG);  in meson_dm_mmc_set_ios()
71 	if (mmc->bus_width == 1)  in meson_dm_mmc_set_ios()
73 	else if (mmc->bus_width == 4)  in meson_dm_mmc_set_ios()
75 	else if (mmc->bus_width == 8)  in meson_dm_mmc_set_ios()
92 	meson_write(mmc, meson_mmc_cfg, MESON_SD_EMMC_CFG);  in meson_dm_mmc_set_ios()
97 static void meson_mmc_setup_cmd(struct mmc *mmc, struct mmc_data *data,  in meson_mmc_setup_cmd()  argument
118 		cfg = meson_read(mmc, MESON_SD_EMMC_CFG);  in meson_mmc_setup_cmd()
121 		meson_write(mmc, cfg, MESON_SD_EMMC_CFG);  in meson_mmc_setup_cmd()
133 	meson_write(mmc, meson_mmc_cmd, MESON_SD_EMMC_CMD_CFG);  in meson_mmc_setup_cmd()
136 static void meson_mmc_setup_addr(struct mmc *mmc, struct mmc_data *data)  in meson_mmc_setup_addr()  argument
138 	struct meson_mmc_platdata *pdata = mmc->priv;  in meson_mmc_setup_addr()
157 	meson_write(mmc, data_addr, MESON_SD_EMMC_CMD_DAT);  in meson_mmc_setup_addr()
160 static void meson_mmc_read_response(struct mmc *mmc, struct mmc_cmd *cmd)  in meson_mmc_read_response()  argument
163 		cmd->response[0] = meson_read(mmc, MESON_SD_EMMC_CMD_RSP3);  in meson_mmc_read_response()
164 		cmd->response[1] = meson_read(mmc, MESON_SD_EMMC_CMD_RSP2);  in meson_mmc_read_response()
165 		cmd->response[2] = meson_read(mmc, MESON_SD_EMMC_CMD_RSP1);  in meson_mmc_read_response()
166 		cmd->response[3] = meson_read(mmc, MESON_SD_EMMC_CMD_RSP);  in meson_mmc_read_response()
168 		cmd->response[0] = meson_read(mmc, MESON_SD_EMMC_CMD_RSP);  in meson_mmc_read_response()
175 	struct mmc *mmc = mmc_get_mmc_dev(dev);  in meson_dm_mmc_send_cmd()  local
176 	struct meson_mmc_platdata *pdata = mmc->priv;  in meson_dm_mmc_send_cmd()
185 	meson_mmc_setup_cmd(mmc, data, cmd);  in meson_dm_mmc_send_cmd()
186 	meson_mmc_setup_addr(mmc, data);  in meson_dm_mmc_send_cmd()
188 	meson_write(mmc, cmd->cmdarg, MESON_SD_EMMC_CMD_ARG);  in meson_dm_mmc_send_cmd()
193 		status = meson_read(mmc, MESON_SD_EMMC_STATUS);  in meson_dm_mmc_send_cmd()
203 	meson_mmc_read_response(mmc, cmd);  in meson_dm_mmc_send_cmd()
209 	meson_write(mmc, STATUS_MASK, MESON_SD_EMMC_STATUS);  in meson_dm_mmc_send_cmd()
237 	struct mmc *mmc = &pdata->mmc;  in meson_mmc_probe()  local
250 	mmc->priv = pdata;  in meson_mmc_probe()
251 	upriv->mmc = mmc;  in meson_mmc_probe()
253 	mmc_set_clock(mmc, cfg->f_min);  in meson_mmc_probe()
256 	meson_write(mmc, STATUS_MASK, MESON_SD_EMMC_STATUS);  in meson_mmc_probe()
259 	meson_write(mmc, 0, MESON_SD_EMMC_IRQ_EN);  in meson_mmc_probe()
262 	val = meson_read(mmc, MESON_SD_EMMC_CFG);  in meson_mmc_probe()
265 	meson_write(mmc, val, MESON_SD_EMMC_CFG);  in meson_mmc_probe()
274 	return mmc_bind(dev, &pdata->mmc, &pdata->cfg);  in meson_mmc_bind()
278 	{ .compatible = "amlogic,meson-gx-mmc" },