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author | Minkyu Kang <mk7.kang@samsung.com> | 2010-04-19 10:26:18 +0900 |
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committer | Minkyu Kang <mk7.kang@samsung.com> | 2010-04-19 10:26:18 +0900 |
commit | 83653121d7382fccfe329cb732f77f116341ef1d (patch) | |
tree | 0b1ce6764252af15dfb2614372de98a44a7ec61f /drivers/mmc/fsl_esdhc.c | |
parent | 0f1f21a345e02a68ec16f7ab9e7dc687f9276089 (diff) | |
parent | 07739bcef5da07cc4a4edef8b91014ccc332eda3 (diff) | |
download | u-boot-imx-83653121d7382fccfe329cb732f77f116341ef1d.zip u-boot-imx-83653121d7382fccfe329cb732f77f116341ef1d.tar.gz u-boot-imx-83653121d7382fccfe329cb732f77f116341ef1d.tar.bz2 |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Conflicts:
cpu/arm1176/cpu.c
cpu/arm1176/start.S
cpu/arm_cortexa8/s5pc1xx/Makefile
cpu/arm_cortexa8/s5pc1xx/clock.c
drivers/serial/serial_s5p.c
include/asm-arm/arch-s5pc1xx/clk.h
include/asm-arm/arch-s5pc1xx/gpio.h
include/asm-arm/arch-s5pc1xx/uart.h
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'drivers/mmc/fsl_esdhc.c')
-rw-r--r-- | drivers/mmc/fsl_esdhc.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index e665b5e..0f6f8b1 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -1,5 +1,5 @@ /* - * Copyright 2007, Freescale Semiconductor, Inc + * Copyright 2007,2010 Freescale Semiconductor, Inc * Andy Fleming * * Based vaguely on the pxa mmc code: @@ -110,8 +110,7 @@ static int esdhc_setup_data(struct mmc *mmc, struct mmc_data *data) if (wml_value > 0x10) wml_value = 0x10; - wml_value = 0x100000 | wml_value; - + esdhc_clrsetbits32(®s->wml, WML_RD_WML_MASK, wml_value); esdhc_write32(®s->dsaddr, (u32)data->dest); } else { if (wml_value > 0x80) @@ -120,12 +119,12 @@ static int esdhc_setup_data(struct mmc *mmc, struct mmc_data *data) printf("\nThe SD card is locked. Can not write to a locked card.\n\n"); return TIMEOUT; } - wml_value = wml_value << 16 | 0x10; + + esdhc_clrsetbits32(®s->wml, WML_WR_WML_MASK, + wml_value << 16); esdhc_write32(®s->dsaddr, (u32)data->src); } - esdhc_write32(®s->wml, wml_value); - esdhc_write32(®s->blkattr, data->blocks << 16 | data->blocksize); /* Calculate the timeout period for data transactions */ @@ -265,18 +264,13 @@ void set_sysctl(struct mmc *mmc, uint clock) clk = (pre_div << 8) | (div << 4); - /* On imx the clock must be stopped before changing frequency */ - if (cfg->clk_enable) - esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN); + esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN); esdhc_clrsetbits32(®s->sysctl, SYSCTL_CLOCK_MASK, clk); udelay(10000); - clk = SYSCTL_PEREN; - /* On imx systems the clock must be explicitely enabled */ - if (cfg->clk_enable) - clk |= SYSCTL_CKEN; + clk = SYSCTL_PEREN | SYSCTL_CKEN; esdhc_setbits32(®s->sysctl, clk); } @@ -349,6 +343,20 @@ static int esdhc_init(struct mmc *mmc) return ret; } +static void esdhc_reset(struct fsl_esdhc *regs) +{ + unsigned long timeout = 100; /* wait max 100 ms */ + + /* reset the controller */ + esdhc_write32(®s->sysctl, SYSCTL_RSTA); + + /* hardware clears the bit when it is done */ + while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA) && --timeout) + udelay(1000); + if (!timeout) + printf("MMC/SD: Reset never completed.\n"); +} + int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg) { struct fsl_esdhc *regs; @@ -363,6 +371,9 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg) sprintf(mmc->name, "FSL_ESDHC"); regs = (struct fsl_esdhc *)cfg->esdhc_base; + /* First reset the eSDHC controller */ + esdhc_reset(regs); + mmc->priv = cfg; mmc->send_cmd = esdhc_send_cmd; mmc->set_ios = esdhc_set_ios; |