X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fmmc%2Fmxsmmc.c;h=089602840333758e8a6c058788ff8312ab3c7c28;hb=895549a2d994ecf1ca1636792e55019e56be2d7d;hp=a72f66cc7aa301aa51a0686c4ecc1699bf91042f;hpb=9c748e02d99476e6a08d55eadfd8776edffe1e2e;p=u-boot diff --git a/drivers/mmc/mxsmmc.c b/drivers/mmc/mxsmmc.c index a72f66cc7a..0896028403 100644 --- a/drivers/mmc/mxsmmc.c +++ b/drivers/mmc/mxsmmc.c @@ -15,33 +15,17 @@ * (C) Copyright 2003 * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include -#include +#include #include #include #include #include -#include +#include #include struct mxsmmc_priv { @@ -51,14 +35,9 @@ struct mxsmmc_priv { int (*mmc_is_wp)(int); int (*mmc_cd)(int); struct mxs_dma_desc *desc; + struct mmc_config cfg; /* mmc configuration */ }; -#if defined(CONFIG_MX23) -static const unsigned int mxsmmc_id_offset = 1; -#elif defined(CONFIG_MX28) -static const unsigned int mxsmmc_id_offset = 0; -#endif - #define MXSMMC_MAX_TIMEOUT 10000 #define MXSMMC_SMALL_TRANSFER 512 @@ -105,7 +84,7 @@ static int mxsmmc_send_cmd_pio(struct mxsmmc_priv *priv, struct mmc_data *data) } } - return timeout ? 0 : COMM_ERR; + return timeout ? 0 : -ECOMM; } static int mxsmmc_send_cmd_dma(struct mxsmmc_priv *priv, struct mmc_data *data) @@ -137,11 +116,11 @@ static int mxsmmc_send_cmd_dma(struct mxsmmc_priv *priv, struct mmc_data *data) priv->desc->cmd.data |= MXS_DMA_DESC_IRQ | MXS_DMA_DESC_DEC_SEM | (data_count << MXS_DMA_DESC_BYTES_OFFSET); - dmach = MXS_DMA_CHANNEL_AHB_APBH_SSP0 + priv->id + mxsmmc_id_offset; + dmach = MXS_DMA_CHANNEL_AHB_APBH_SSP0 + priv->id; mxs_dma_desc_append(dmach, priv->desc); if (mxs_dma_go(dmach)) { bounce_buffer_stop(&bbstate); - return COMM_ERR; + return -ECOMM; } bounce_buffer_stop(&bbstate); @@ -156,14 +135,14 @@ static int mxsmmc_send_cmd_dma(struct mxsmmc_priv *priv, struct mmc_data *data) static int mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) { - struct mxsmmc_priv *priv = (struct mxsmmc_priv *)mmc->priv; + struct mxsmmc_priv *priv = mmc->priv; struct mxs_ssp_regs *ssp_regs = priv->regs; uint32_t reg; int timeout; uint32_t ctrl0; int ret; - debug("MMC%d: CMD%d\n", mmc->block_dev.dev, cmd->cmdidx); + debug("MMC%d: CMD%d\n", mmc->block_dev.devnum, cmd->cmdidx); /* Check bus busy */ timeout = MXSMMC_MAX_TIMEOUT; @@ -178,14 +157,14 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) } if (!timeout) { - printf("MMC%d: Bus busy timeout!\n", mmc->block_dev.dev); - return TIMEOUT; + printf("MMC%d: Bus busy timeout!\n", mmc->block_dev.devnum); + return -ETIMEDOUT; } /* See if card is present */ if (!mxsmmc_cd(priv)) { - printf("MMC%d: No card detected!\n", mmc->block_dev.dev); - return NO_CARD_ERR; + printf("MMC%d: No card detected!\n", mmc->block_dev.devnum); + return -ENOMEDIUM; } /* Start building CTRL0 contents */ @@ -221,10 +200,10 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) if (data->flags & MMC_DATA_READ) { ctrl0 |= SSP_CTRL0_READ; } else if (priv->mmc_is_wp && - priv->mmc_is_wp(mmc->block_dev.dev)) { + priv->mmc_is_wp(mmc->block_dev.devnum)) { printf("MMC%d: Can not write a locked card!\n", - mmc->block_dev.dev); - return UNUSABLE_ERR; + mmc->block_dev.devnum); + return -EOPNOTSUPP; } ctrl0 |= SSP_CTRL0_DATA_XFER; @@ -264,22 +243,22 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) if (!timeout) { printf("MMC%d: Command %d busy\n", - mmc->block_dev.dev, cmd->cmdidx); - return TIMEOUT; + mmc->block_dev.devnum, cmd->cmdidx); + return -ETIMEDOUT; } /* Check command timeout */ if (reg & SSP_STATUS_RESP_TIMEOUT) { printf("MMC%d: Command %d timeout (status 0x%08x)\n", - mmc->block_dev.dev, cmd->cmdidx, reg); - return TIMEOUT; + mmc->block_dev.devnum, cmd->cmdidx, reg); + return -ETIMEDOUT; } /* Check command errors */ if (reg & (SSP_STATUS_RESP_CRC_ERR | SSP_STATUS_RESP_ERR)) { printf("MMC%d: Command %d error (status 0x%08x)!\n", - mmc->block_dev.dev, cmd->cmdidx, reg); - return COMM_ERR; + mmc->block_dev.devnum, cmd->cmdidx, reg); + return -ECOMM; } /* Copy response to response buffer */ @@ -300,14 +279,14 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) if (ret) { printf("MMC%d: Data timeout with command %d " "(status 0x%08x)!\n", - mmc->block_dev.dev, cmd->cmdidx, reg); + mmc->block_dev.devnum, cmd->cmdidx, reg); return ret; } } else { ret = mxsmmc_send_cmd_dma(priv, data); if (ret) { printf("MMC%d: DMA transfer failed\n", - mmc->block_dev.dev); + mmc->block_dev.devnum); return ret; } } @@ -318,8 +297,8 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) (SSP_STATUS_TIMEOUT | SSP_STATUS_DATA_CRC_ERR | SSP_STATUS_FIFO_OVRFLW | SSP_STATUS_FIFO_UNDRFLW)) { printf("MMC%d: Data error with command %d (status 0x%08x)!\n", - mmc->block_dev.dev, cmd->cmdidx, reg); - return COMM_ERR; + mmc->block_dev.devnum, cmd->cmdidx, reg); + return -ECOMM; } return 0; @@ -327,7 +306,7 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) static void mxsmmc_set_ios(struct mmc *mmc) { - struct mxsmmc_priv *priv = (struct mxsmmc_priv *)mmc->priv; + struct mxsmmc_priv *priv = mmc->priv; struct mxs_ssp_regs *ssp_regs = priv->regs; /* Set the clock speed */ @@ -351,12 +330,12 @@ static void mxsmmc_set_ios(struct mmc *mmc) SSP_CTRL0_BUS_WIDTH_MASK, priv->buswidth); debug("MMC%d: Set %d bits bus width\n", - mmc->block_dev.dev, mmc->bus_width); + mmc->block_dev.devnum, mmc->bus_width); } static int mxsmmc_init(struct mmc *mmc) { - struct mxsmmc_priv *priv = (struct mxsmmc_priv *)mmc->priv; + struct mxsmmc_priv *priv = mmc->priv; struct mxs_ssp_regs *ssp_regs = priv->regs; /* Reset SSP */ @@ -385,40 +364,33 @@ static int mxsmmc_init(struct mmc *mmc) return 0; } +static const struct mmc_ops mxsmmc_ops = { + .send_cmd = mxsmmc_send_cmd, + .set_ios = mxsmmc_set_ios, + .init = mxsmmc_init, +}; + int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int), int (*cd)(int)) { struct mmc *mmc = NULL; struct mxsmmc_priv *priv = NULL; int ret; -#if defined(CONFIG_MX23) - const unsigned int mxsmmc_max_id = 2; - const unsigned int mxsmmc_clk_id = 0; -#elif defined(CONFIG_MX28) - const unsigned int mxsmmc_max_id = 4; - const unsigned int mxsmmc_clk_id = id; -#endif + const unsigned int mxsmmc_clk_id = mxs_ssp_clock_by_bus(id); - if (id >= mxsmmc_max_id) + if (!mxs_ssp_bus_id_valid(id)) return -ENODEV; - mmc = malloc(sizeof(struct mmc)); - if (!mmc) - return -ENOMEM; - priv = malloc(sizeof(struct mxsmmc_priv)); - if (!priv) { - free(mmc); + if (!priv) return -ENOMEM; - } priv->desc = mxs_dma_desc_alloc(); if (!priv->desc) { free(priv); - free(mmc); return -ENOMEM; } - ret = mxs_dma_init_channel(id + mxsmmc_id_offset); + ret = mxs_dma_init_channel(MXS_DMA_CHANNEL_AHB_APBH_SSP0 + id); if (ret) return ret; @@ -427,16 +399,12 @@ int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int), int (*cd)(int)) priv->id = id; priv->regs = mxs_ssp_regs_by_bus(id); - sprintf(mmc->name, "MXS MMC"); - mmc->send_cmd = mxsmmc_send_cmd; - mmc->set_ios = mxsmmc_set_ios; - mmc->init = mxsmmc_init; - mmc->getcd = NULL; - mmc->priv = priv; + priv->cfg.name = "MXS MMC"; + priv->cfg.ops = &mxsmmc_ops; - mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34; + priv->cfg.voltages = MMC_VDD_32_33 | MMC_VDD_33_34; - mmc->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT | + priv->cfg.host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS; /* @@ -445,10 +413,15 @@ int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int), int (*cd)(int)) * CLOCK_DIVIDE has to be an even value from 2 to 254, and * CLOCK_RATE could be any integer from 0 to 255. */ - mmc->f_min = 400000; - mmc->f_max = mxc_get_clock(MXC_SSP0_CLK + mxsmmc_clk_id) * 1000 / 2; - mmc->b_max = 0x20; + priv->cfg.f_min = 400000; + priv->cfg.f_max = mxc_get_clock(MXC_SSP0_CLK + mxsmmc_clk_id) * 1000 / 2; + priv->cfg.b_max = 0x20; - mmc_register(mmc); + mmc = mmc_create(&priv->cfg, priv); + if (mmc == NULL) { + mxs_dma_desc_free(priv->desc); + free(priv); + return -ENOMEM; + } return 0; }