diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/mmc/davinci_mmc.c | 5 | ||||
| -rw-r--r-- | drivers/mmc/fsl_esdhc.c | 3 | ||||
| -rw-r--r-- | drivers/mmc/mmc.c | 137 | ||||
| -rw-r--r-- | drivers/mmc/mv_sdhci.c | 3 | ||||
| -rw-r--r-- | drivers/mmc/s5p_sdhci.c | 3 | ||||
| -rw-r--r-- | drivers/mmc/spear_sdhci.c | 44 |
7 files changed, 157 insertions, 39 deletions
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 1d6faa2..fb6b502 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -46,6 +46,7 @@ COBJS-$(CONFIG_SDHCI) += sdhci.o COBJS-$(CONFIG_BCM2835_SDHCI) += bcm2835_sdhci.o COBJS-$(CONFIG_S5P_SDHCI) += s5p_sdhci.o COBJS-$(CONFIG_SH_MMCIF) += sh_mmcif.o +COBJS-$(CONFIG_SPEAR_SDHCI) += spear_sdhci.o COBJS-$(CONFIG_TEGRA_MMC) += tegra_mmc.o COBJS-$(CONFIG_DWMMC) += dw_mmc.o COBJS-$(CONFIG_EXYNOS_DWMMC) += exynos_dw_mmc.o diff --git a/drivers/mmc/davinci_mmc.c b/drivers/mmc/davinci_mmc.c index e2379e3..5aa2184 100644 --- a/drivers/mmc/davinci_mmc.c +++ b/drivers/mmc/davinci_mmc.c @@ -285,8 +285,11 @@ dmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) */ if (bytes_left > fifo_bytes) dmmc_wait_fifo_status(regs, 0x4a); - else if (bytes_left == fifo_bytes) + else if (bytes_left == fifo_bytes) { dmmc_wait_fifo_status(regs, 0x40); + if (cmd->cmdidx == MMC_CMD_SEND_EXT_CSD) + udelay(600); + } for (i = 0; bytes_left && (i < fifo_words); i++) { cmddata = get_val(®s->mmcdrr); diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index e945c0a..ec01795 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -601,8 +601,7 @@ int fsl_esdhc_mmc_init(bd_t *bis) { struct fsl_esdhc_cfg *cfg; - cfg = malloc(sizeof(struct fsl_esdhc_cfg)); - memset(cfg, 0, sizeof(struct fsl_esdhc_cfg)); + cfg = calloc(sizeof(struct fsl_esdhc_cfg), 1); cfg->esdhc_base = CONFIG_SYS_FSL_ESDHC_ADDR; cfg->sdhc_clk = gd->arch.sdhc_clk; return fsl_esdhc_initialize(bis, cfg); diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 2590f1b..0a2f535 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -524,48 +524,70 @@ static int sd_send_op_cond(struct mmc *mmc) return 0; } -static int mmc_send_op_cond(struct mmc *mmc) +/* We pass in the cmd since otherwise the init seems to fail */ +static int mmc_send_op_cond_iter(struct mmc *mmc, struct mmc_cmd *cmd, + int use_arg) { - int timeout = 10000; - struct mmc_cmd cmd; int err; + cmd->cmdidx = MMC_CMD_SEND_OP_COND; + cmd->resp_type = MMC_RSP_R3; + cmd->cmdarg = 0; + if (use_arg && !mmc_host_is_spi(mmc)) { + cmd->cmdarg = + (mmc->voltages & + (mmc->op_cond_response & OCR_VOLTAGE_MASK)) | + (mmc->op_cond_response & OCR_ACCESS_MODE); + + if (mmc->host_caps & MMC_MODE_HC) + cmd->cmdarg |= OCR_HCS; + } + err = mmc_send_cmd(mmc, cmd, NULL); + if (err) + return err; + mmc->op_cond_response = cmd->response[0]; + return 0; +} + +int mmc_send_op_cond(struct mmc *mmc) +{ + struct mmc_cmd cmd; + int err, i; + /* Some cards seem to need this */ mmc_go_idle(mmc); /* Asking to the card its capabilities */ - cmd.cmdidx = MMC_CMD_SEND_OP_COND; - cmd.resp_type = MMC_RSP_R3; - cmd.cmdarg = 0; - - err = mmc_send_cmd(mmc, &cmd, NULL); + mmc->op_cond_pending = 1; + for (i = 0; i < 2; i++) { + err = mmc_send_op_cond_iter(mmc, &cmd, i != 0); + if (err) + return err; - if (err) - return err; + /* exit if not busy (flag seems to be inverted) */ + if (mmc->op_cond_response & OCR_BUSY) + return 0; + } + return IN_PROGRESS; +} - udelay(1000); +int mmc_complete_op_cond(struct mmc *mmc) +{ + struct mmc_cmd cmd; + int timeout = 1000; + uint start; + int err; + mmc->op_cond_pending = 0; + start = get_timer(0); do { - cmd.cmdidx = MMC_CMD_SEND_OP_COND; - cmd.resp_type = MMC_RSP_R3; - cmd.cmdarg = (mmc_host_is_spi(mmc) ? 0 : - (mmc->voltages & - (cmd.response[0] & OCR_VOLTAGE_MASK)) | - (cmd.response[0] & OCR_ACCESS_MODE)); - - if (mmc->host_caps & MMC_MODE_HC) - cmd.cmdarg |= OCR_HCS; - - err = mmc_send_cmd(mmc, &cmd, NULL); - + err = mmc_send_op_cond_iter(mmc, &cmd, 1); if (err) return err; - - udelay(1000); - } while (!(cmd.response[0] & OCR_BUSY) && timeout--); - - if (timeout <= 0) - return UNUSABLE_ERR; + if (get_timer(start) > timeout) + return UNUSABLE_ERR; + udelay(100); + } while (!(mmc->op_cond_response & OCR_BUSY)); if (mmc_host_is_spi(mmc)) { /* read OCR for spi */ cmd.cmdidx = MMC_CMD_SPI_READ_OCR; @@ -1274,7 +1296,7 @@ block_dev_desc_t *mmc_get_dev(int dev) } #endif -int mmc_init(struct mmc *mmc) +int mmc_start_init(struct mmc *mmc) { int err; @@ -1314,17 +1336,48 @@ int mmc_init(struct mmc *mmc) if (err == TIMEOUT) { err = mmc_send_op_cond(mmc); - if (err) { + if (err && err != IN_PROGRESS) { printf("Card did not respond to voltage select!\n"); return UNUSABLE_ERR; } } - err = mmc_startup(mmc); + if (err == IN_PROGRESS) + mmc->init_in_progress = 1; + + return err; +} + +static int mmc_complete_init(struct mmc *mmc) +{ + int err = 0; + + if (mmc->op_cond_pending) + err = mmc_complete_op_cond(mmc); + + if (!err) + err = mmc_startup(mmc); if (err) mmc->has_init = 0; else mmc->has_init = 1; + mmc->init_in_progress = 0; + return err; +} + +int mmc_init(struct mmc *mmc) +{ + int err = IN_PROGRESS; + unsigned start = get_timer(0); + + if (mmc->has_init) + return 0; + if (!mmc->init_in_progress) + err = mmc_start_init(mmc); + + if (!err || err == IN_PROGRESS) + err = mmc_complete_init(mmc); + debug("%s: %d, time %lu\n", __func__, err, get_timer(start)); return err; } @@ -1362,6 +1415,25 @@ int get_mmc_num(void) return cur_dev_num; } +void mmc_set_preinit(struct mmc *mmc, int preinit) +{ + mmc->preinit = preinit; +} + +static void do_preinit(void) +{ + struct mmc *m; + struct list_head *entry; + + list_for_each(entry, &mmc_devices) { + m = list_entry(entry, struct mmc, link); + + if (m->preinit) + mmc_start_init(m); + } +} + + int mmc_initialize(bd_t *bis) { INIT_LIST_HEAD (&mmc_devices); @@ -1372,5 +1444,6 @@ int mmc_initialize(bd_t *bis) print_mmc_devices(','); + do_preinit(); return 0; } diff --git a/drivers/mmc/mv_sdhci.c b/drivers/mmc/mv_sdhci.c index 2fe34b6..63e1f90 100644 --- a/drivers/mmc/mv_sdhci.c +++ b/drivers/mmc/mv_sdhci.c @@ -51,6 +51,5 @@ int mv_sdh_init(u32 regbase, u32 max_clk, u32 min_clk, u32 quirks) host->version = sdhci_readl(host, SDHCI_HOST_VERSION - 2) >> 16; else host->version = sdhci_readw(host, SDHCI_HOST_VERSION); - add_sdhci(host, max_clk, min_clk); - return 0; + return add_sdhci(host, max_clk, min_clk); } diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c index dc49d37..e50ff92 100644 --- a/drivers/mmc/s5p_sdhci.c +++ b/drivers/mmc/s5p_sdhci.c @@ -94,6 +94,5 @@ int s5p_sdhci_init(u32 regbase, int index, int bus_width) host->host_caps = MMC_MODE_HC; - add_sdhci(host, 52000000, 400000); - return 0; + return add_sdhci(host, 52000000, 400000); } diff --git a/drivers/mmc/spear_sdhci.c b/drivers/mmc/spear_sdhci.c new file mode 100644 index 0000000..23f1f4b --- /dev/null +++ b/drivers/mmc/spear_sdhci.c @@ -0,0 +1,44 @@ +/* + * (C) Copyright 2012 + * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com. + * + * 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 + */ + +#include <common.h> +#include <malloc.h> +#include <sdhci.h> + +int spear_sdhci_init(u32 regbase, u32 max_clk, u32 min_clk, u32 quirks) +{ + struct sdhci_host *host = NULL; + host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host)); + if (!host) { + printf("sdhci host malloc fail!\n"); + return 1; + } + + host->name = "sdhci"; + host->ioaddr = (void *)regbase; + host->quirks = quirks; + + if (quirks & SDHCI_QUIRK_REG32_RW) + host->version = sdhci_readl(host, SDHCI_HOST_VERSION - 2) >> 16; + else + host->version = sdhci_readw(host, SDHCI_HOST_VERSION); + + add_sdhci(host, max_clk, min_clk); + return 0; +} |