X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fmmc%2Fmxcmmc.c;h=561b2045986f5858bcc1f90b0398831dfa32f079;hb=8ef0d5c43841bccc9112e160e96d6498aa94871b;hp=6282b236e41b6714e57ae1b0a535933f54401094;hpb=ba3dbaf281130029ecb970a922551902c1d80b50;p=oweals%2Fu-boot.git diff --git a/drivers/mmc/mxcmmc.c b/drivers/mmc/mxcmmc.c index 6282b236e4..561b204598 100644 --- a/drivers/mmc/mxcmmc.c +++ b/drivers/mmc/mxcmmc.c @@ -25,9 +25,7 @@ #include #include #include -#ifdef CONFIG_MX27 #include -#endif #define DRIVER_NAME "mxc-mmc" @@ -124,6 +122,8 @@ struct mxcmci_host { }; static struct mxcmci_host mxcmci_host; + +/* maintainer note: do we really want to have a global host pointer? */ static struct mxcmci_host *host = &mxcmci_host; static inline int mxcmci_use_dma(struct mxcmci_host *host) @@ -136,14 +136,14 @@ static void mxcmci_softreset(struct mxcmci_host *host) int i; /* reset sequence */ - writew(STR_STP_CLK_RESET, &host->base->str_stp_clk); - writew(STR_STP_CLK_RESET | STR_STP_CLK_START_CLK, + writel(STR_STP_CLK_RESET, &host->base->str_stp_clk); + writel(STR_STP_CLK_RESET | STR_STP_CLK_START_CLK, &host->base->str_stp_clk); for (i = 0; i < 8; i++) - writew(STR_STP_CLK_START_CLK, &host->base->str_stp_clk); + writel(STR_STP_CLK_START_CLK, &host->base->str_stp_clk); - writew(0xff, &host->base->res_to); + writel(0xff, &host->base->res_to); } static void mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data) @@ -154,8 +154,8 @@ static void mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data) host->data = data; - writew(nob, &host->base->nob); - writew(blksz, &host->base->blk_len); + writel(nob, &host->base->nob); + writel(blksz, &host->base->blk_len); host->datasize = datasize; } @@ -185,9 +185,9 @@ static int mxcmci_start_cmd(struct mxcmci_host *host, struct mmc_cmd *cmd, return -EINVAL; } - writew(cmd->cmdidx, &host->base->cmd); + writel(cmd->cmdidx, &host->base->cmd); writel(cmd->cmdarg, &host->base->arg); - writew(cmdat, &host->base->cmd_dat_cont); + writel(cmdat, &host->base->cmd_dat_cont); return 0; } @@ -247,14 +247,14 @@ static int mxcmci_read_response(struct mxcmci_host *host, unsigned int stat) if (cmd->resp_type & MMC_RSP_PRESENT) { if (cmd->resp_type & MMC_RSP_136) { for (i = 0; i < 4; i++) { - a = readw(&host->base->res_fifo); - b = readw(&host->base->res_fifo); + a = readl(&host->base->res_fifo) & 0xFFFF; + b = readl(&host->base->res_fifo) & 0xFFFF; resp[i] = a << 16 | b; } } else { - a = readw(&host->base->res_fifo); - b = readw(&host->base->res_fifo); - c = readw(&host->base->res_fifo); + a = readl(&host->base->res_fifo) & 0xFFFF; + b = readl(&host->base->res_fifo) & 0xFFFF; + c = readl(&host->base->res_fifo) & 0xFFFF; resp[0] = a << 24 | b << 8 | c >> 8; } } @@ -422,7 +422,7 @@ static void mxcmci_set_clk_rate(struct mxcmci_host *host, unsigned int clk_ios) { unsigned int divider; int prescaler = 0; - unsigned long clk_in = imx_get_perclk2(); + unsigned long clk_in = mxc_get_clock(MXC_ESDHC_CLK); while (prescaler <= 0x800) { for (divider = 1; divider <= 0xF; divider++) { @@ -445,7 +445,7 @@ static void mxcmci_set_clk_rate(struct mxcmci_host *host, unsigned int clk_ios) prescaler <<= 1; } - writew((prescaler << 4) | divider, &host->base->clk_rate); + writel((prescaler << 4) | divider, &host->base->clk_rate); } static void mxcmci_set_ios(struct mmc *mmc) @@ -458,9 +458,9 @@ static void mxcmci_set_ios(struct mmc *mmc) if (mmc->clock) { mxcmci_set_clk_rate(host, mmc->clock); - writew(STR_STP_CLK_START_CLK, &host->base->str_stp_clk); + writel(STR_STP_CLK_START_CLK, &host->base->str_stp_clk); } else { - writew(STR_STP_CLK_STOP_CLK, &host->base->str_stp_clk); + writel(STR_STP_CLK_STOP_CLK, &host->base->str_stp_clk); } host->clock = mmc->clock; @@ -472,7 +472,7 @@ static int mxcmci_init(struct mmc *mmc) mxcmci_softreset(host); - host->rev_no = readw(&host->base->rev_no); + host->rev_no = readl(&host->base->rev_no); if (host->rev_no != 0x400) { printf("wrong rev.no. 0x%08x. aborting.\n", host->rev_no); @@ -480,38 +480,37 @@ static int mxcmci_init(struct mmc *mmc) } /* recommended in data sheet */ - writew(0x2db4, &host->base->read_to); + writel(0x2db4, &host->base->read_to); writel(0, &host->base->int_cntr); return 0; } -static int mxcmci_initialize(bd_t *bis) -{ - struct mmc *mmc = NULL; - - mmc = malloc(sizeof(struct mmc)); - - if (!mmc) - return -ENOMEM; +static const struct mmc_ops mxcmci_ops = { + .send_cmd = mxcmci_request, + .set_ios = mxcmci_set_ios, + .init = mxcmci_init, +}; - sprintf(mmc->name, "MXC MCI"); - mmc->send_cmd = mxcmci_request; - mmc->set_ios = mxcmci_set_ios; - mmc->init = mxcmci_init; - mmc->host_caps = MMC_MODE_4BIT; +static struct mmc_config mxcmci_cfg = { + .name = "MXC MCI", + .ops = &mxcmci_ops, + .host_caps = MMC_MODE_4BIT, + .voltages = MMC_VDD_32_33 | MMC_VDD_33_34, + .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT, +}; +static int mxcmci_initialize(bd_t *bis) +{ host->base = (struct mxcmci_regs *)CONFIG_MXC_MCI_REGS_BASE; - mmc->priv = host; - host->mmc = mmc; - mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34; + mxcmci_cfg.f_min = mxc_get_clock(MXC_ESDHC_CLK) >> 7; + mxcmci_cfg.f_max = mxc_get_clock(MXC_ESDHC_CLK) >> 1; - mmc->f_min = imx_get_perclk2() >> 7; - mmc->f_max = imx_get_perclk2() >> 1; - - mmc_register(mmc); + host->mmc = mmc_create(&mxcmci_cfg, host); + if (host->mmc == NULL) + return -1; return 0; } @@ -520,4 +519,3 @@ int mxc_mmc_init(bd_t *bis) { return mxcmci_initialize(bis); } -