I want to work SD card interface MMC3 2nd MMC on a DM3730 board based on
beagle-xm .but I dont know how to do. i know you have finished it.please
tell me you how to do it. thank you very much .
On Thursday, May 10, 2012 11:52:45 PM UTC+8, Jaya Kumar wrote:
>
> Hi Rowboat and Beagle friends,
>
> With 2.6.32, I have fully working SD card interface via 2nd MMC on a
> DM3730 board based on Beagle-XM. That is, upon insertion of the SD
> card, I see:
>
> mmc1: new SD card at address a95c
> mmcblk1: mmc1:a95c SD128 120 MiB
> mmcblk1: p1
> # mkdir /tmp/b
> root@localhost:/# mount /dev/block/mmcblk1p1 /tmp/b
> root@localhost:/# find /tmp/b
> /tmp/b
> /tmp/b/files
> <snip>
>
> So everything is happy.
>
> With 2.6.37 on the same setup, I'm not able to talk to 2nd MMC and am
> having difficulty figuring out why not. Here's what I see upon
> insertion of the SD card:
>
> # [ 42.995117] mmc1: mmc_rescan: trying to init card at 400000 Hz
> [ 43.001525] twl4030ldo_set_voltage:343 min=3100000, max=3150000
> [ 120.837036] mmc1: clock 0Hz busmode 1 powermode 1 cs 0 Vdd 19 width
> 0 timing 0
> [ 120.861968] mmc1: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 19
> width 0 timing 0
> [ 120.885284] mmc1: starting CMD52 arg 00000c00 flags 00000195
> [ 120.885284] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD52, argument
> 0x00000c00
> [ 120.885711] mmc1: req done (CMD52): -110: 00000000 00000000 00000000
> 00000000
> [ 120.885742] mmc1: starting CMD52 arg 80000c08 flags 00000195
> [ 120.885772] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD52, argument
> 0x80000c08
> [ 120.886169] mmc1: req done (CMD52): -110: 00000000 00000000 00000000
> 00000000
> [ 120.886199] mmc1: clock 400000Hz busmode 1 powermode 2 cs 1 Vdd 19
> width 0 timing 0
> [ 120.887207] mmc1: starting CMD0 arg 00000000 flags 000000c0
> [ 120.887237] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD0, argument
> 0x00000000
> [ 120.887451] mmc1: req done (CMD0): 0: 00000000 00000000 00000000
> 00000000
> [ 120.888458] mmc1: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 19
> width 0 timing 0
> [ 120.889465] mmc1: starting CMD8 arg 000001aa flags 000002f5
> [ 120.889495] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD8, argument
> 0x000001aa
> [ 120.889892] mmc1: req done (CMD8): -110: 00000000 00000000 00000000
> 00000000
> [ 120.889923] mmc1: starting CMD5 arg 00000000 flags 000002e1
> [ 120.889953] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD5, argument
> 0x00000000
> [ 120.890350] mmc1: req failed (CMD5): -110, retrying...
> [ 120.890350] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD5, argument
> 0x00000000
> [ 120.890777] mmc1: req failed (CMD5): -110, retrying...
> [ 120.890777] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD5, argument
> 0x00000000
> [ 120.891174] mmc1: req failed (CMD5): -110, retrying...
> [ 120.891204] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD5, argument
> 0x00000000
> [ 120.891601] mmc1: req done (CMD5): -110: 00000000 00000000 00000000
> 00000000
> [ 120.891632] mmc1: starting CMD55 arg 00000000 flags 000000f5
> [ 120.891632] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD55, argument
> 0x00000000
> [ 120.892059] mmc1: req done (CMD55): -110: 00000000 00000000 00000000
> 00000000
> [ 120.892089] mmc1: starting CMD55 arg 00000000 flags 000000f5
> [ 120.892089] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD55, argument
> 0x00000000
> [ 120.892517] mmc1: req done (CMD55): -110: 00000000 00000000 00000000
> 00000000
> [ 120.892517] mmc1: starting CMD55 arg 00000000 flags 000000f5
> [ 120.892547] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD55, argument
> 0x00000000
> [ 120.892944] mmc1: req done (CMD55): -110: 00000000 00000000 00000000
> 00000000
> [ 120.892974] mmc1: starting CMD55 arg 00000000 flags 000000f5
> [ 120.893005] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD55, argument
> 0x00000000
> [ 120.893402] mmc1: req done (CMD55): -110: 00000000 00000000 00000000
> 00000000
> [ 120.893432] mmc1: starting CMD1 arg 00000000 flags 000000e1
> [ 120.893432] mmci-omap-hs mmci-omap-hs.1: mmc1: CMD1, argument
> 0x00000000
> [ 120.893859] mmc1: req done (CMD1): -110: 00000000 00000000 00000000
> 00000000
> [ 120.893890] mmc1: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0
> timing 0
>
> As shown above, mmc1 detection fails. I put debug into the twl4030
> regulator code since I suspect that the VMMC2 regulator on the
> TPS65950 isn't getting enabled. When I measure the voltage at the
> VMMC2 pin of the SD card connector (with 2.6.37 running) and the SD
> inserted, I see it reading 0V. With 2.6.32, I see the same pin read as
> 3.11V. That said, the call to twl4030ldo_set_voltage succeeds and I
> don't see any errors reported about regulators or voltage. I've got
> regulator debug and mmc debug enabled and still don't see any error
> messages. Here's the bootup regulator report on 2.6.37:
>
> [ 0.037567] omap_device: omap_i2c.1: new worst case activate latency 0:
> 30517
> [ 0.045532] omap_i2c omap_i2c.1: bus 1 rev4.0 at 2600 kHz
> [ 0.048492] twl4030: PIH (irq 7) chaining IRQs 368..375
> [ 0.048522] twl4030: power (irq 373) chaining IRQs 376..383
> [ 0.049072] twl4030: gpio (irq 368) chaining IRQs 384..401
> [ 0.051818] regulator: VUSB1V5: 1500 mV normal standby
> [ 0.052520] regulator: VUSB1V8: 1800 mV normal standby
> [ 0.053222] regulator: VUSB3V1: 3100 mV normal standby
> [ 0.056610] twl4030_usb twl4030_usb: Initialized TWL4030 USB module
> [ 0.057891] regulator: VMMC1: 1850 <--> 3150 mV at 3000 mV normal
> standby
> [ 0.058563] regulator: VDAC: 1800 mV normal standby
> [ 0.059265] regulator: VDVI: 1800 mV normal standby
> [ 0.060028] regulator: VMMC2: 1850 <--> 3150 mV at 2600 mV normal
> standby
> [ 0.060791] regulator: VSIM: 1800 <--> 3000 mV at 1800 mV normal
> standby
> [ 0.061523] twl4030ldo_set_voltage:343 min=1800000, max=1800000
> [ 0.061614] regulator: VAUX3: 1800 mV normal standby
> [ 0.062316] twl4030ldo_set_voltage:343 min=1800000, max=1800000
> [ 0.062408] regulator: VAUX4: 1800 mV normal standby
>
> All looks fine, just like with 2.6.32, which shows:
> i2c_omap i2c_omap.1: bus 1 rev4.0 at 2600 kHz
> twl4030: PIH (irq 7) chaining IRQs 368..375
> twl4030: power (irq 373) chaining IRQs 376..383
> twl4030: gpio (irq 368) chaining IRQs 384..401
> regulator: VUSB1V5: 1500 mV normal standby
> regulator: VUSB1V8: 1800 mV normal standby
> regulator: VUSB3V1: 3100 mV normal standby
> twl4030_usb twl4030_usb: Initialized TWL4030 USB module
> regulator: VMMC1: 1850 <--> 3150 mV normal standby
> regulator: VDAC: 1800 mV normal standby
> regulator: VPLL2: 1800 mV normal standby
> regulator: VMMC2: 1850 <--> 3150 mV normal standby
> regulator: VSIM: 1800 <--> 3000 mV normal standby
> regulator: VAUX1: 3000 mV normal standby
> i2c_omap i2c_omap.2: bus 2 rev4.0 at 400 kHz
> i2c_omap i2c_omap.3: bus 3 rev4.0 at 100 kHz
>
> I'm scratching my head as to where things are going wrong. Here's the
> code I'm using on 2.6.37:
>
> static struct omap2_hsmmc_info mmc[] = {
> {
> .mmc = 1,
> .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
> .gpio_wp = -EINVAL,
> },
> #if 1
> {
> .mmc = 2,
> .caps = MMC_CAP_4_BIT_DATA,
> .transceiver = true,
> .gpio_wp = 108,
> .gpio_cd = 107,
> },
> #endif
> #ifdef CONFIG_WL12XX_PLATFORM_DATA
> {
> .name = "wl1271",
> .mmc = 3,
> .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
> .gpio_wp = -EINVAL,
> .gpio_cd = -EINVAL,
> .ocr_mask = MMC_VDD_165_195,
> .nonremovable = true,
> },
> #endif
> {} /* Terminator */
> };
>
>
> static struct regulator_consumer_supply wiser2_vmmc2_supply = {
> .supply = "vmmc",
> };
>
>
> static int wiser2_twl_gpio_setup(struct device *dev,
> unsigned gpio, unsigned ngpio)
> {
> /* gpio + 0 is "mmc0_cd" (input/IRQ) */
> mmc[0].gpio_cd = gpio + 0;
> omap2_hsmmc_init(mmc);
>
> /* link regulators to MMC adapters */
> wiser2_vmmc1_supply.dev = mmc[0].dev;
> wiser2_vmmc2_supply.dev = mmc[1].dev;
>
>
> static struct regulator_init_data wiser2_vmmc2 = {
> .constraints = {
> .min_uV = 1850000,
> .max_uV = 3150000,
> .valid_modes_mask = REGULATOR_MODE_NORMAL
> | REGULATOR_MODE_STANDBY,
> .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
> | REGULATOR_CHANGE_MODE
> | REGULATOR_CHANGE_STATUS,
> },
> .num_consumer_supplies = 1,
> .consumer_supplies = &wiser2_vmmc2_supply,
> };
>
>
> static struct twl4030_platform_data wiser2_twldata = {
> .irq_base = TWL4030_IRQ_BASE,
> .irq_end = TWL4030_IRQ_END,
>
> /* platform_data for children goes here */
> .usb = &wiser2_usb_data,
> .gpio = &wiser2_gpio_data,
> .codec = &wiser2_codec_data,
> .vmmc1 = &wiser2_vmmc1,
> .vmmc2 = &wiser2_vmmc2,
> .vsim = &wiser2_vsim,
> .vdac = &wiser2_vdac,
> .vpll2 = &wiser2_vpll2,
> .vaux3 = &wiser2_vaux3,
> .vaux4 = &wiser2_vaux4,
> };
>
> Any advice or debug suggestions would be greatly welcome.
>
> btw, MMC1 (mmc0) and MMC3 (mmc2) work fine on 2.6.37.
> [ 4.435211] mmc0: mmc_rescan: trying to init card at 400000 Hz
> [ 4.441772] twl4030ldo_set_voltage:343 min=3100000, max=3150000
> [ 5.010437] mmc0: new high speed SD card at address 0002
> [ 5.016479] mmcblk0: mmc0:0002 00000 1.86 GiB
> [ 5.025177] mmcblk0: p1 p2 p3
> [ 5.029602] mmc2: mmc_rescan: trying to init card at 400000 Hz
> [ 5.155975] mmc2: card claims to support voltages below the defined
> range. These will be ignored.
> [ 5.204559] mmc2: queuing unknown CIS tuple 0x91 (3 bytes)
> [ 5.213623] mmc2: new SDIO card at address 0001
>
> Thanks,
> jaya
>
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