From 93bfd6167713a5cc1a78bcf60fa63f990fd3f4b3 Mon Sep 17 00:00:00 2001 From: Pantelis Antoniou Date: Tue, 11 Mar 2014 19:34:20 +0200 Subject: mmc: Split mmc struct, rework mmc initialization (v2) The way that struct mmc was implemented was a bit of a mess; configuration and internal state all jumbled up in a single structure. On top of that the way initialization is done with mmc_register leads to a lot of duplicated code in drivers. Typically the initialization got something like this in every driver. struct mmc *mmc = malloc(sizeof(struct mmc)); memset(mmc, 0, sizeof(struct mmc); /* fill in fields of mmc struct */ /* store private data pointer */ mmc_register(mmc); By using the new mmc_create call one just passes an mmc config struct and an optional private data pointer like this: struct mmc = mmc_create(&cfg, priv); All in tree drivers have been updated to the new form, and expect mmc_register to go away before long. Changes since v1: * Use calloc instead of manually calling memset. * Mark mmc_register as deprecated. Signed-off-by: Pantelis Antoniou --- drivers/mmc/arm_pl180_mmci.c | 40 +++++++++++++++++++++------------------- 1 file changed, 21 insertions(+), 19 deletions(-) (limited to 'drivers/mmc/arm_pl180_mmci.c') diff --git a/drivers/mmc/arm_pl180_mmci.c b/drivers/mmc/arm_pl180_mmci.c index 5a30590..5ef7ff7 100644 --- a/drivers/mmc/arm_pl180_mmci.c +++ b/drivers/mmc/arm_pl180_mmci.c @@ -287,9 +287,9 @@ static void host_set_ios(struct mmc *dev) u32 clkdiv = 0; u32 tmp_clock; - if (dev->clock >= dev->f_max) { + if (dev->clock >= dev->cfg->f_max) { clkdiv = 0; - dev->clock = dev->f_max; + dev->clock = dev->cfg->f_max; } else { clkdiv = (host->clock_in / dev->clock) - 2; } @@ -348,16 +348,9 @@ static const struct mmc_ops arm_pl180_mmci_ops = { */ int arm_pl180_mmci_init(struct pl180_mmc_host *host) { - struct mmc *dev; + struct mmc *mmc; u32 sdi_u32; - dev = malloc(sizeof(struct mmc)); - if (!dev) - return -ENOMEM; - - memset(dev, 0, sizeof(struct mmc)); - dev->priv = host; - writel(host->pwr_init, &host->base->power); writel(host->clkdiv_init, &host->base->clock); udelay(CLK_CHANGE_DELAY); @@ -365,15 +358,24 @@ int arm_pl180_mmci_init(struct pl180_mmc_host *host) /* Disable mmc interrupts */ sdi_u32 = readl(&host->base->mask0) & ~SDI_MASK0_MASK; writel(sdi_u32, &host->base->mask0); - dev->name = host->name; - dev->ops = &arm_pl180_mmci_ops; - dev->host_caps = host->caps; - dev->voltages = host->voltages; - dev->f_min = host->clock_min; - dev->f_max = host->clock_max; - dev->b_max = host->b_max; - mmc_register(dev); - debug("registered mmc interface number is:%d\n", dev->block_dev.dev); + + host->cfg.name = host->name; + host->cfg.ops = &arm_pl180_mmci_ops; + /* TODO remove the duplicates */ + host->cfg.host_caps = host->caps; + host->cfg.voltages = host->voltages; + host->cfg.f_min = host->clock_min; + host->cfg.f_max = host->clock_max; + if (host->b_max != 0) + host->cfg.b_max = host->b_max; + else + host->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; + + mmc = mmc_create(&host->cfg, host); + if (mmc == NULL) + return -1; + + debug("registered mmc interface number is:%d\n", mmc->block_dev.dev); return 0; } -- cgit v1.1