On Dec 21, 2010, at 4:37 AM, zhangfei gao wrote:
> v3: sync to mmc-next
>
> Emmc speed could double if using ddr50 mode, help check
>
> From 895c3d15a200d5f5803f992dab46ff114ad26f90 Mon Sep 17 00:00:00 2001
> From: Zhangfei Gao <[email protected]>
> Date: Tue, 21 Dec 2010 19:51:38 -0500
> Subject: [PATCH] mmc: sdhci support emmc ddr50 mode
>
> 1. spec sdhc 3.0 does not claim support 1.2v ddr mode
> 2. Call back function set_power is added, since some controller count
> on external pmic to provide power
> 3. According to spec sdhc 3.0, uhs mode, including emmc ddr50 takes
> effect only when 1.8v Signaling Enable bit, which used for providing
> 1.8v.
> So emmc ddr50 mode works after 1.8v switching process, though emmc
> ddr50 could work at high voltage such as 3.3v if external pmic provide
> voltage.
> Limitation: emmc ddr50 mode only workable when both host and emmc
> card support 1.70-1.90v
> 4. According to JESD84, power down and power up is required to
> provide low voltage 1.70-1.90v to mmc.
>
> Verified: toshiba emmc on mmp2, with io voltage at 1.8v provided by
> external pmic.
>
> Signed-off-by: Zhangfei Gao <[email protected]>
> ---
> drivers/mmc/core/core.c | 13 +++++++++++++
> drivers/mmc/core/core.h | 1 +
> drivers/mmc/core/mmc.c | 6 +++++-
> drivers/mmc/host/sdhci.c | 44 +++++++++++++++++++++++++++++++++++++++++---
> drivers/mmc/host/sdhci.h | 14 +++++++++++++-
> 5 files changed, 73 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
> index a8e89f3..fd657f1 100644
> --- a/drivers/mmc/core/core.c
> +++ b/drivers/mmc/core/core.c
> @@ -1012,6 +1012,19 @@ static void mmc_power_off(struct mmc_host *host)
> }
>
> /*
> + * mmc select low voltage 1.70-1.95v
> + */
> +void mmc_select_low_voltage(struct mmc_host *host, u32 ocr)
> +{
> + if (!(ocr & MMC_VDD_165_195))
> + return;
> +
> + mmc_power_off(host);
> + host->ocr = ocr & host->ocr_avail;
> + mmc_power_up(host);
> +}
> +
> +/*
> * Cleanup when the last reference to the bus operator is dropped.
> */
> static void __mmc_release_bus(struct mmc_host *host)
> diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
> index 026c975..b05c20a 100644
> --- a/drivers/mmc/core/core.h
> +++ b/drivers/mmc/core/core.h
> @@ -41,6 +41,7 @@ void mmc_set_bus_width(struct mmc_host *host,
> unsigned int width);
> void mmc_set_bus_width_ddr(struct mmc_host *host, unsigned int width,
> unsigned int ddr);
> u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
> +void mmc_select_low_voltage(struct mmc_host *host, u32 ocr);
> void mmc_set_timing(struct mmc_host *host, unsigned int timing);
>
> static inline void mmc_delay(unsigned int ms)
> diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
> index 86cac0d..8779339 100644
> --- a/drivers/mmc/core/mmc.c
> +++ b/drivers/mmc/core/mmc.c
> @@ -790,7 +790,11 @@ int mmc_attach_mmc(struct mmc_host *host, u32 ocr)
> ocr &= ~0x7F;
> }
>
> - host->ocr = mmc_select_voltage(host, ocr);
> + if ((ocr & MMC_VDD_165_195)
> + && (host->ocr_avail & MMC_VDD_165_195))
> + mmc_select_low_voltage(host, ocr);
> + else
> + host->ocr = mmc_select_voltage(host, ocr);
>
> /*
> * Can we support the voltage of the card?
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> index d5febe5..aafbb42 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -986,6 +986,22 @@ static void sdhci_finish_command(struct sdhci_host *host)
> host->cmd = NULL;
> }
>
> +static void sdhci_set_ddr(struct sdhci_host *host, unsigned int ddr)
> +{
> + u16 con;
> +
> + if (ddr == MMC_SDR_MODE)
> + return;
> +
> + con = sdhci_readw(host, SDHCI_HOST_CONTROL2);
> + if (con & SDHCI_CTRL2_1_8V) {
> + con &= ~SDHCI_CTRL2_UHS_MASK;
> + if (ddr & MMC_1_8V_DDR_MODE)
> + con |= SDHCI_CTRL2_DDR50;
> + sdhci_writew(host, con, SDHCI_HOST_CONTROL2);
> + }
> +}
> +
> static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
> {
> int div;
> @@ -1084,6 +1100,18 @@ static void sdhci_set_power(struct sdhci_host
> *host, unsigned short power)
> return;
> }
>
> + if ((pwr == SDHCI_POWER_180) &&
> + (host->mmc->caps & MMC_CAP_1_8V_DDR)) {
> + u16 con;
> +
> + con = sdhci_readw(host, SDHCI_HOST_CONTROL2);
> + con |= SDHCI_CTRL2_1_8V;
> + sdhci_writew(host, con, SDHCI_HOST_CONTROL2);
> +
> + if (host->ops->set_power)
> + host->ops->set_power(host, pwr);
> + }
> +
> /*
> * Spec says that we should clear the power reg before setting
> * a new value. Some controllers don't seem to like this though.
> @@ -1180,6 +1208,7 @@ static void sdhci_set_ios(struct mmc_host *mmc,
> struct mmc_ios *ios)
> }
>
> sdhci_set_clock(host, ios->clock);
> + sdhci_set_ddr(host, ios->ddr);
>
> if (ios->power_mode == MMC_POWER_OFF)
> sdhci_set_power(host, -1);
> @@ -1744,7 +1773,7 @@ EXPORT_SYMBOL_GPL(sdhci_alloc_host);
> int sdhci_add_host(struct sdhci_host *host)
> {
> struct mmc_host *mmc;
> - unsigned int caps, ocr_avail;
> + unsigned int caps, caps_h = 0, ocr_avail;
> int ret;
>
> WARN_ON(host == NULL);
> @@ -1767,8 +1796,17 @@ int sdhci_add_host(struct sdhci_host *host)
> host->version);
> }
>
> - caps = (host->quirks & SDHCI_QUIRK_MISSING_CAPS) ? host->caps :
> - sdhci_readl(host, SDHCI_CAPABILITIES);
> + if (host->quirks & SDHCI_QUIRK_MISSING_CAPS)
> + caps = host->caps;
> + else {
> + caps = sdhci_readl(host, SDHCI_CAPABILITIES);
> + caps_h = sdhci_readl(host, SDHCI_CAPABILITIES_1);
> + }
> +
> + if (caps & SDHCI_CAN_VDD_180) {
> + if (caps_h & SDHCI_CAN_SDR50)
> + mmc->caps |= (MMC_CAP_1_8V_DDR);
> + }
>
> if (host->quirks & SDHCI_QUIRK_FORCE_DMA)
> host->flags |= SDHCI_USE_SDMA;
> diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
> index 6e0969e..c4bd5dd 100644
> --- a/drivers/mmc/host/sdhci.h
> +++ b/drivers/mmc/host/sdhci.h
> @@ -145,7 +145,14 @@
>
> #define SDHCI_ACMD12_ERR 0x3C
>
> -/* 3E-3F reserved */
> +#define SDHCI_HOST_CONTROL2 0x3E
> +#define SDHCI_CTRL2_UHS_MASK 0x0007
> +#define SDHCI_CTRL2_SDR12 0x0000
> +#define SDHCI_CTRL2_SDR25 0x0001
> +#define SDHCI_CTRL2_SDR50 0x0002
> +#define SDHCI_CTRL2_SDR104 0x0003
> +#define SDHCI_CTRL2_DDR50 0x0004
> +#define SDHCI_CTRL2_1_8V 0x0008
>
> #define SDHCI_CAPABILITIES 0x40
> #define SDHCI_TIMEOUT_CLK_MASK 0x0000003F
> @@ -167,6 +174,9 @@
> #define SDHCI_CAN_64BIT 0x10000000
>
> #define SDHCI_CAPABILITIES_1 0x44
> +#define SDHCI_CAN_SDR50 0x00000001
> +#define SDHCI_CAN_SDR104 0x00000002
> +#define SDHCI_CAN_DDR50 0x00000004
>
> #define SDHCI_MAX_CURRENT 0x48
>
> @@ -222,6 +232,8 @@ struct sdhci_ops {
> void (*platform_send_init_74_clocks)(struct sdhci_host *host,
> u8 power_mode);
> unsigned int (*get_ro)(struct sdhci_host *host);
> + unsigned int (*set_power)(struct sdhci_host *host,
> + unsigned short power);
> };
>
> #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
> --
> 1.7.0.4
> <0001-mmc-sdhci-support-emmc-ddr50-mode.patch>
Does not work for me on mmp2 using linux next. Partition table not found
trace below
Loading: #################################################################
########################################################
done
Bytes transferred = 1766924 (1af60c hex)
MMP2>> boot
Ready to boot zImage from 1100000
Starting kernel ...
[ 0.000000] Linux version 2.6.37-rc6-next-20101220-00022-g8b35e00-dirty
(r...@philip-laptop) (gcc version 4.2.0 20070413 (prerelease) (CodeSourcery
2007q1-10. Marvell 2009q3-18 20090821)) #51 PREEMPT Tu0
[ 0.000000] CPU: Marvell PJ4 processor [560f5815] revision 5 (ARMv7),
cr=00c5387f
[ 0.000000] CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine: Brownstone Development Platform
[ 0.000000] Ignoring unrecognised tag 0x41000403
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] On node 0 totalpages: 131072
[ 0.000000] free_area_init_node: node 0, pgdat c03713d0, node_mem_map
c0390000
[ 0.000000] Normal zone: 1024 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 130048 pages, LIFO batch:31
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total
pages: 130048
[ 0.000000] Kernel command line: debug rootdelay=15 root=/dev/mmcblk0p1
rootfstype=ext3 console=ttyS2,38400 mem=512M uart_dma mbr_offset=0x4800
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Memory: 512MB = 512MB total
[ 0.000000] Memory: 516108k/516108k available, 8180k reserved, 0K highmem
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] DMA : 0xffc00000 - 0xffe00000 ( 2 MB)
[ 0.000000] vmalloc : 0xe0800000 - 0xfe000000 ( 472 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .init : 0xc0008000 - 0xc001f000 ( 92 kB)
[ 0.000000] .text : 0xc001f000 - 0xc0354004 (3285 kB)
[ 0.000000] .data : 0xc0356000 - 0xc0372c40 ( 116 kB)
[ 0.000000] Preemptable hierarchical RCU implementation.
[ 0.000000] RCU-based detection of stalled CPUs is disabled.
[ 0.000000] Verbose stalled-CPUs detection is disabled.
[ 0.000000] NR_IRQS:320 nr_irqs:360 360
[ 0.000000] sched_clock: 32 bits at 6MHz, resolution 153ns, wraps every
660764ms
[ 0.000000] Console: colour dummy device 80x30
[ 0.000023] Calibrating delay loop... 796.26 BogoMIPS (lpj=3981312)
[ 0.220162] pid_max: default: 32768 minimum: 301
[ 0.220323] Mount-cache hash table entries: 512
[ 0.220629] CPU: Testing write buffer coherency: ok
[ 0.224390] print_constraints: dummy: regulator:
[ 0.224390] NET: Registered protocol family 16
[ 0.224518] Tauros2: Disabling L2 prefetch.
[ 0.224560] Tauros2: L2 cache support initialised in ARMv6 mode.
[ 0.227660] bio: create slab <bio-0> at 0
[ 0.228859] Switching to clocksource clocksource
[ 0.233823] NET: Registered protocol family 2
[ 0.233966] IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.234294] TCP established hash table entries: 16384 (order: 5, 131072
bytes)
[ 0.234544] TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.234544] TCP: Hash tables configured (established 16384 bind 16384)
[ 0.234661] TCP reno registered
[ 0.234674] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.234688] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.234868] NET: Registered protocol family 1
[ 0.235278] RPC: Registered udp transport module.
[ 0.235278] RPC: Registered tcp transport module.
[ 0.235295] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.237007] JFFS2 version 2.2. (NAND) .. 2001-2006 Red Hat, Inc.
[ 0.237253] msgmni has been set to 1008
[ 0.237921] io scheduler noop registered
[ 0.237937] io scheduler deadline registered
[ 0.237937] io scheduler cfq registered (default)
[ 0.238510] pxa2xx-uart.0: ttyS0 at MMIO 0xd4030000 (irq = 27) is a FFUART
[ 0.238510] pxa2xx-uart.2: ttyS2 at MMIO 0xd4018000 (irq = 24) is a STUART
[ 1.352386] console [ttyS2] enabled
[ 1.363462] mousedev: PS/2 mouse device common for all mice
[ 1.380052] sdhci: Secure Digital Host Controller Interface driver
[ 1.398589] sdhci: Copyright(c) Pierre Ossman
[ 1.411584] set_clock_and_burst_size:mmc0: adjust = 1
[ 1.426715] set_clock_and_burst_size:mmc0: (B) SD_CLOCK_AND_BURST = 00C5,
delay = 15, sel = 1
[ 1.452068] set_clock_and_burst_size:mmc0: (A) SD_CLOCK_AND_BURST_SIZE_SETUP
= 1FC5
[ 1.474880] mmc0: no vmmc regulator found
[ 1.486806] set_clock_and_burst_size:mmc0: adjust = 1
[ 1.501827] set_clock_and_burst_size:mmc0: (B) SD_CLOCK_AND_BURST = 00C5,
delay = 15, sel = 1
[ 1.527204] set_clock_and_burst_size:mmc0: (A) SD_CLOCK_AND_BURST_SIZE_SETUP
= 1FC5
[ 1.549982] sdhci: =========== REGISTER DUMP (mmc0)===========
[ 1.567313] sdhci: Sys addr: 0x00000000 | Version: 0x00000002
[ 1.584666] sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000
[ 1.602003] sdhci: Argument: 0x00000000 | Trn mode: 0x00000000
[ 1.619344] sdhci: Present: 0x01fa0000 | Host ctl: 0x00000000
[ 1.636685] sdhci: Power: 0x00000000 | Blk gap: 0x00000000
[ 1.654029] sdhci: Wake-up: 0x00000000 | Clock: 0x00000000
[ 1.671373] sdhci: Timeout: 0x00000000 | Int stat: 0x00000000
[ 1.688713] sdhci: Int enab: 0x00ff0003 | Sig enab: 0x00ff0003
[ 1.706058] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000
[ 1.723399] sdhci: Caps: 0x25fcc8b2 | Caps_1: 0x00002f77
[ 1.740741] sdhci: Cmd: 0x00000000 | Max curr: 0x00000000
[ 1.758081] sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x00000000
[ 1.775432] sdhci: ===========================================
[ 1.792896] mmc_power_off:mmc0: ENTER
[ 1.803799] mmc0: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0
[ 1.825042] set_clock_and_burst_size:mmc0: adjust = 1
[ 1.825042] set_clock_and_burst_size:mmc0: (B) SD_CLOCK_AND_BURST = 00C5,
delay = 15, sel = 1
[ 1.840029] set_clock_and_burst_size:mmc0: (A) SD_CLOCK_AND_BURST_SIZE_SETUP
= 1FC5
[ 1.888227] mmc0: SDHCI controller on MMC [sdhci-pxa.2] using ADMA
[ 1.906642] mmc0: mmc_rescan: trying to init card at 400000 Hz
[ 1.924028] mmc_power_up:mmc0: ENTER
[ 1.934670] mmc0: clock 0Hz busmode 1 powermode 1 cs 0 Vdd 21 width 0 timing 0
[ 1.956225] set_clock_and_burst_size:mmc1: adjust = 1
[ 1.971333] mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0
timing 0
[ 1.994208] generate_initial_74_clocks:mmc0 ENTER: slot->power_mode =
1,ios->power_mode = 2
[ 2.019862] set_clock_and_burst_size:mmc1: (B) SD_CLOCK_AND_BURST = 00C5,
delay = 31, sel = 1
[ 2.045262] mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0
timing 0
[ 2.068038] mmc0: starting CMD52 arg 00000c00 flags 00000195
[ 2.084902] set_clock_and_burst_size:mmc1: (A) SD_CLOCK_AND_BURST_SIZE_SETUP
= 3FC5
[ 2.107679] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.126336] mmc0: req done (CMD52): -110: 00000000 00000000 00000000 00000000
[ 2.147563] mmc0: starting CMD52 arg 80000c08 flags 00000195
[ 2.164426] mmc1: no vmmc regulator found
[ 2.176382] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.195017] mmc0: req done (CMD52): -110: 00000000 00000000 00000000 00000000
[ 2.216291] mmc0: clock 400000Hz busmode 1 powermode 2 cs 1 Vdd 21 width 0
timing 0
[ 2.239066] mmc0: starting CMD0 arg 00000000 flags 000000c0
[ 2.256653] set_clock_and_burst_size:mmc1: adjust = 1
[ 2.271682] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 2.290309] mmc0: req done (CMD0): 0: 00000000 00000000 00000000 00000000
[ 2.310497] mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0
timing 0
[ 2.334306] mmc0: starting CMD8 arg 000001aa flags 000002f5
[ 2.351886] set_clock_and_burst_size:mmc1: (B) SD_CLOCK_AND_BURST = 00C5,
delay = 31, sel = 1
[ 2.377254] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.395890] mmc0: req done (CMD8): -110: 00000000 00000000 00000000 00000000
[ 2.416880] mmc0: starting CMD5 arg 00000000 flags 000002e1
[ 2.433487] set_clock_and_burst_size:mmc1: (A) SD_CLOCK_AND_BURST_SIZE_SETUP
= 3FC5
[ 2.456268] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.474916] mmc0: req failed (CMD5): -110, retrying...
[ 2.490186] sdhci: =========== REGISTER DUMP (mmc1)===========
[ 2.507544] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.526177] mmc0: req failed (CMD5): -110, retrying...
[ 2.541469] sdhci: Sys addr: 0x00000000 | Version: 0x00000002
[ 2.558803] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.577433] mmc0: req failed (CMD5): -110, retrying...
[ 2.592713] sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000
[ 2.610051] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.628684] mmc0: req done (CMD5): -110: 00000000 00000000 00000000 00000000
[ 2.649651] mmc0: starting CMD55 arg 00000000 flags 000000f5
[ 2.666514] sdhci: Argument: 0x00000000 | Trn mode: 0x00000000
[ 2.683870] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.702501] mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[ 2.723725] mmc0: starting CMD55 arg 00000000 flags 000000f5
[ 2.740589] sdhci: Present: 0x01fa0000 | Host ctl: 0x00000000
[ 2.757949] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.776577] mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[ 2.797801] mmc0: starting CMD55 arg 00000000 flags 000000f5
[ 2.814663] sdhci: Power: 0x00000000 | Blk gap: 0x00000000
[ 2.832016] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.850651] mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[ 2.871875] mmc0: starting CMD55 arg 00000000 flags 000000f5
[ 2.888737] sdhci: Wake-up: 0x00000000 | Clock: 0x00000000
[ 2.906093] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00018000
[ 2.924743] mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[ 2.945950] mmc0: starting CMD1 arg 00000000 flags 000000e1
[ 2.962556] sdhci: Timeout: 0x00000000 | Int stat: 0x00000000
[ 2.979910] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 2.998544] mmc0: req done (CMD1): 0: 40ff8080 00000000 00000000 00000000
[ 3.018732] mmc_attach_mmc:mmc0: ocr = 40ff8080
[ 3.032230] mmc_select_low_voltage:mmc0: ENTER
[ 3.045435] mmc_power_off:mmc0: ENTER
[ 3.056313] mmc0: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0
[ 3.077543] set_clock_and_burst_size:mmc0: adjust = 1
[ 3.077543] set_clock_and_burst_size:mmc0: (B) SD_CLOCK_AND_BURST = 00C5,
delay = 15, sel = 1
[ 3.092534] set_clock_and_burst_size:mmc0: (A) SD_CLOCK_AND_BURST_SIZE_SETUP
= 1FC5
[ 3.140629] mmc_power_up:mmc0: ENTER
[ 3.151255] mmc0: clock 0Hz busmode 1 powermode 1 cs 0 Vdd 7 width 0 timing 0
[ 3.172476] sdhci: Int enab: 0x00ff0003 | Sig enab: 0x00ff0003
[ 3.189836] mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 7 width 0
timing 0
[ 3.212432] generate_initial_74_clocks:mmc0 ENTER: slot->power_mode =
1,ios->power_mode = 2
[ 3.238059] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000
[ 3.255427] mmc0: clock 400000Hz busmode 1 powermode 2 cs 1 Vdd 7 width 0
timing 0
[ 3.278878] mmc0: starting CMD0 arg 00000000 flags 000000c0
[ 3.295554] sdhci: Caps: 0x25fcc8b2 | Caps_1: 0x00002f77
[ 3.312911] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 3.331547] mmc0: req done (CMD0): 0: 00000000 00000000 00000000 00000000
[ 3.351734] mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 7 width 0
timing 0
[ 3.375260] mmc0: starting CMD1 arg 40300080 flags 000000e1
[ 3.392854] sdhci: Cmd: 0x00000000 | Max curr: 0x00000000
[ 3.410196] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 3.428830] mmc0: req done (CMD1): 0: 40ff8080 00000000 00000000 00000000
[ 3.449035] sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x00000000
[ 3.466388] sdhci: ===========================================
[ 3.483748] mmc0: starting CMD1 arg 40300080 flags 000000e1
[ 3.500460] mmc_power_off:mmc1: ENTER
[ 3.511342] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 3.530016] mmc0: req done (CMD1): 0: c0ff8080 00000000 00000000 00000000
[ 3.550235] mmc0: starting CMD2 arg 00000000 flags 00000067
[ 3.566816] mmc1: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0
[ 3.588044] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 3.606698] mmc0: req done (CMD2): 0: 45010053 454d3038 479031ce 57f97d00
[ 3.626919] mmc0: starting CMD3 arg 00010000 flags 00000015
[ 3.643513] set_clock_and_burst_size:mmc1: adjust = 1
[ 3.643513] set_clock_and_burst_size:mmc1: (B) SD_CLOCK_AND_BURST = 00C5,
delay = 31, sel = 1
[ 3.658512] set_clock_and_burst_size:mmc1: (A) SD_CLOCK_AND_BURST_SIZE_SETUP
= 3FC5
[ 3.706605] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 3.725253] mmc0: req done (CMD3): 0: 00000500 00000000 00000000 00000000
[ 3.745474] mmc0: clock 400000Hz busmode 2 powermode 2 cs 0 Vdd 7 width 0
timing 0
[ 3.767990] mmc0: starting CMD9 arg 00010000 flags 00000007
[ 3.784621] mmc1: SDHCI controller on MMC [sdhci-pxa.0] using ADMA
[ 3.803019] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 3.821642] mmc0: req done (CMD9): 0: d00f0032 0f5903ff ffffffff 92404000
[ 3.841857] mmc0: starting CMD7 arg 00010000 flags 00000015
[ 3.858458] set_clock_and_burst_size:mmc2: adjust = 1
[ 3.873548] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 3.892206] mmc0: req done (CMD7): 0: 00000700 00000000 00000000 00000000
[ 3.912445] mmc0: starting CMD8 arg 00000000 flags 000000b5
[ 3.929016] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 3.949502] set_clock_and_burst_size:mmc2: (B) SD_CLOCK_AND_BURST = 00C5,
delay = 15, sel = 1
[ 3.974859] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000003
[ 3.993499] mmc0: req done (CMD8): 0: 00000900 00000000 00000000 00000000
[ 4.013703] mmc0: 512 bytes transferred: 0
[ 4.026910] mmc0: starting CMD6 arg 03b90101 flags 0000049d
[ 4.043523] set_clock_and_burst_size:mmc2: (A) SD_CLOCK_AND_BURST_SIZE_SETUP
= 1FC5
[ 4.066302] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000003
[ 4.084943] mmc0: req done (CMD6): 0: 00000800 00000000 00000000 00000000
[ 4.105253] mmc0: starting CMD13 arg 00010000 flags 00000195
[ 4.122127] mmc2: no vmmc regulator found
[ 4.134099] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 4.152759] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 4.173232] mmc0: clock 400000Hz busmode 2 powermode 2 cs 0 Vdd 7 width 0
timing 1
[ 4.195775] mmc0: clock 52000000Hz busmode 2 powermode 2 cs 0 Vdd 7 width 0
timing 1
[ 4.218842] mmc0: starting CMD6 arg 03b70201 flags 0000049d
[ 4.235428] set_clock_and_burst_size:mmc2: adjust = 1
[ 4.250456] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000003
[ 4.269105] mmc0: req done (CMD6): 0: 00000800 00000000 00000000 00000000
[ 4.289300] mmc0: starting CMD13 arg 00010000 flags 00000195
[ 4.306152] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 4.324792] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 4.345235] ------------[ cut here ]------------
[ 4.345249] WARNING: at kernel/sched.c:4000 schedule+0x25c/0x3ac()
[ 4.377317] Modules linked in:
[ 4.377317] [<c002abe8>] (unwind_backtrace+0x0/0x124) from [<c003834c>]
(warn_slowpath_common+0x4c/0x64)
[ 4.386390] [<c003834c>] (warn_slowpath_common+0x4c/0x64) from [<c0038380>]
(warn_slowpath_null+0x1c/0x24)
[ 4.414575] [<c0038380>] (warn_slowpath_null+0x1c/0x24) from [<c028909c>]
(schedule+0x25c/0x3ac)
[ 4.469417] [<c028909c>] (schedule+0x25c/0x3ac) from [<c028922c>]
(preempt_schedule+0x40/0x70)
[ 4.469417] [<c028922c>] (preempt_schedule+0x40/0x70) from [<c0039284>]
(vprintk+0x36c/0x3a4)
[ 4.520387] [<c0039284>] (vprintk+0x36c/0x3a4) from [<c00392dc>]
(printk+0x20/0x30)
[ 4.543167] [<c00392dc>] (printk+0x20/0x30) from [<c01efa18>]
(platform_reset_exit+0x48/0x124)
[ 4.543167] [<c01efa18>] (platform_reset_exit+0x48/0x124) from [<c01ed4a8>]
(sdhci_reset+0xf4/0x11c)
[ 4.595936] [<c01ed4a8>] (sdhci_reset+0xf4/0x11c) from [<c01ed878>]
(sdhci_init+0x1c/0x5c)
[ 4.595936] [<c01ed878>] (sdhci_init+0x1c/0x5c) from [<c01ef87c>]
(sdhci_add_host+0x5fc/0x70c)
[ 4.620516] [<c01ef87c>] (sdhci_add_host+0x5fc/0x70c) from [<c0288a44>]
(sdhci_pxa_probe+0x1c0/0x27c)
[ 4.673552] [<c0288a44>] (sdhci_pxa_probe+0x1c0/0x27c) from [<c01c10d0>]
(platform_drv_probe+0x1c/0x24)
[ 4.673552] [<c01c10d0>] (platform_drv_probe+0x1c/0x24) from [<c01bff94>]
(driver_probe_device+0x124/0x22c)
[ 4.701490] [<c01bff94>] (driver_probe_device+0x124/0x22c) from [<c01c027c>]
(__driver_attach+0x60/0x84)
[ 4.758661] [<c01c027c>] (__driver_attach+0x60/0x84) from [<c01bf074>]
(bus_for_each_dev+0x4c/0x80)
[ 4.785566] [<c01bf074>] (bus_for_each_dev+0x4c/0x80) from [<c01bf8d0>]
(bus_add_driver+0xc0/0x248)
[ 4.812472] [<c01bf8d0>] (bus_add_driver+0xc0/0x248) from [<c01c050c>]
(driver_register+0xac/0x13c)
[ 4.812472] [<c01c050c>] (driver_register+0xac/0x13c) from [<c001f434>]
(do_one_initcall+0xbc/0x18c)
[ 4.839390] [<c001f434>] (do_one_initcall+0xbc/0x18c) from [<c00086e0>]
(kernel_init+0x98/0x14c)
[ 4.866546] [<c00086e0>] (kernel_init+0x98/0x14c) from [<c00263e0>]
(kernel_thread_exit+0x0/0x8)
[ 4.892679] ---[ end trace 8b39c6115c20996a ]---
[ 4.932567] set_clock_and_burst_size:mmc2: (B) SD_CLOCK_AND_BURST = 00C5,
delay = 15, sel = 1
[ 4.957952] mmc0: clock 52000000Hz busmode 2 powermode 2 cs 0 Vdd 7 width 3
timing 1
[ 4.981020] mmc0: starting CMD19 arg 00000000 flags 000000b5
[ 4.997867] mmc0: blksz 8 blocks 1 flags 00000100 tsac 0 ms nsac 0
[ 5.017307] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 5.035948] set_clock_and_burst_size:mmc2: (A) SD_CLOCK_AND_BURST_SIZE_SETUP
= 1FC5
[ 5.058745] sdhci: =========== REGISTER DUMP (mmc2)===========
[ 5.076090] sdhci: Sys addr: 0x00000000 | Version: 0x00000002
[ 5.093431] sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000
[ 5.110778] sdhci: Argument: 0x00000000 | Trn mode: 0x00000000
[ 5.128113] sdhci: Present: 0x01f20000 | Host ctl: 0x00000000
[ 5.145458] sdhci: Power: 0x00000000 | Blk gap: 0x00000000
[ 5.162801] sdhci: Wake-up: 0x00000000 | Clock: 0x00000000
[ 5.180143] sdhci: Timeout: 0x00000000 | Int stat: 0x00000000
[ 5.197490] sdhci: Int enab: 0x00ff0003 | Sig enab: 0x00ff0003
[ 5.214828] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000
[ 5.232170] sdhci: Caps: 0x25fcc8b2 | Caps_1: 0x00002f77
[ 5.249514] sdhci: Cmd: 0x00000000 | Max curr: 0x00000000
[ 5.266853] sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x00000000
[ 5.284200] sdhci: ===========================================
[ 5.301664] mmc_power_off:mmc2: ENTER
[ 5.312569] mmc2: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0
[ 5.333806] set_clock_and_burst_size:mmc2: adjust = 1
[ 5.333816] set_clock_and_burst_size:mmc2: (B) SD_CLOCK_AND_BURST = 00C5,
delay = 15, sel = 1
[ 5.348826] set_clock_and_burst_size:mmc2: (A) SD_CLOCK_AND_BURST_SIZE_SETUP
= 1FC5
[ 5.396942] mmc2: SDHCI controller on MMC [sdhci-pxa.1] using ADMA
[ 5.415519] TCP cubic registered
[ 5.425136] NET: Registered protocol family 17
[ 5.438418] Registering the dns_resolver key type
[ 5.452421] VFP support v0.3: implementor 56 architecture 2 part 20 variant
9 rev 5
[ 5.475688] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[ 5.494606] Waiting 15sec before mounting root device...
[ 15.028875] mmc0: Timeout waiting for hardware interrupt.
[ 15.028886] sdhci: =========== REGISTER DUMP (mmc0)===========
[ 15.044932] sdhci: Sys addr: 0x00000000 | Version: 0x00000002
[ 15.062248] sdhci: Blk size: 0x00007008 | Blk cnt: 0x00000000
[ 15.096880] sdhci: Argument: 0x00000000 | Trn mode: 0x00000003
[ 15.096880] sdhci: Present: 0x01fa0000 | Host ctl: 0x00000035
[ 15.114198] sdhci: Power: 0x0000000b | Blk gap: 0x00000000
[ 15.131514] sdhci: Wake-up: 0x00000000 | Clock: 0x00000207
[ 15.148831] sdhci: Timeout: 0x0000000e | Int stat: 0x00000000
[ 15.166148] sdhci: Int enab: 0x02ff000b | Sig enab: 0x02ff000b
[ 15.200782] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000
[ 15.218099] sdhci: Caps: 0x25fcc8b2 | Caps_1: 0x00002f77
[ 15.218099] sdhci: Cmd: 0x0000133a | Max curr: 0x00000000
[ 15.235416] sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x1f943808
[ 15.252733] sdhci: ===========================================
[ 15.287391] mmc0: req done (CMD19): 0: 00000000 00000000 00000000 00000000
[ 15.307852] mmc0: 0 bytes transferred: -110
[ 15.321336] mmc0: starting CMD14 arg 00000000 flags 000000b5
[ 15.338178] mmc0: blksz 8 blocks 1 flags 00000200 tsac 0 ms nsac 0
[ 15.357630] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000003
[ 15.376281] mmc0: req done (CMD14): 0: 00001300 00000000 00000000 00000000
[ 15.396738] mmc0: 8 bytes transferred: 0
[ 15.409456] mmc0: starting CMD6 arg 03b70601 flags 0000049d
[ 15.426403] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000003
[ 15.445051] mmc0: req done (CMD6): 0: 00000800 00000000 00000000 00000000
[ 15.465275] mmc0: starting CMD13 arg 00010000 flags 00000195
[ 15.482119] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 15.500770] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 15.521225] mmc0: clock 52000000Hz busmode 2 powermode 2 cs 0 Vdd 7 width 3
timing 1
[ 15.544295] mmc0: new high speed DDR MMC card at address 0001
[ 15.561727] mmcblk0: mmc0:0001 SEM08G 7.39 GiB
[ 15.575658] mmc0: starting CMD18 arg 00000000 flags 000000b5
[ 15.592556] mmc0: blksz 512 blocks 8 flags 00000200 tsac 100 ms nsac 0
[ 15.613031] mmc0: CMD12 arg 00000000 flags 0000049d
[ 15.628605] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 15.647270] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00208002
[ 15.665927] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000003
[ 15.684563] mmc0: req done (CMD18): 0: 00000900 00000000 00000000 00000000
[ 15.705030] mmc0: 0 bytes transferred: -84
[ 15.718234] mmc0: (CMD12): 0: 00000b00 00000000 00000000 00000000
[ 15.737416] mmcblk0: retrying using single block read
[ 15.752440] mmc0: starting CMD17 arg 00000000 flags 000000b5
[ 15.769301] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 15.789746] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 15.808390] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00208002
[ 15.827030] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 15.847496] mmc0: 0 bytes transferred: -84
[ 15.860718] mmc0: starting CMD13 arg 00010000 flags 00000195
[ 15.877566] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 15.896217] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 15.916671] mmcblk0: error -84 transferring data, sector 0, nr 8, card
status 0x900
[ 15.939470] end_request: I/O error, dev mmcblk0, sector 0
[ 15.955529] mmc0: starting CMD17 arg 00000001 flags 000000b5
[ 15.972363] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 15.992831] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 16.011469] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00208002
[ 16.030122] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 16.050567] mmc0: 0 bytes transferred: -84
[ 16.063872] mmc0: starting CMD13 arg 00010000 flags 00000195
[ 16.080731] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 16.099367] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 16.119836] mmcblk0: error -84 transferring data, sector 1, nr 7, card
status 0x900
[ 16.142611] end_request: I/O error, dev mmcblk0, sector 1
[ 16.158666] mmc0: starting CMD17 arg 00000002 flags 000000b5
[ 16.175513] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 16.195980] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 16.214626] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 16.233256] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 16.253719] mmc0: 512 bytes transferred: 0
[ 16.266939] mmc0: starting CMD17 arg 00000003 flags 000000b5
[ 16.283786] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 16.304265] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 16.322913] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 16.341547] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 16.362015] mmc0: 512 bytes transferred: 0
[ 16.375231] mmc0: starting CMD17 arg 00000004 flags 000000b5
[ 16.392083] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 16.412574] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 16.431207] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 16.449845] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 16.470309] mmc0: 512 bytes transferred: 0
[ 16.483526] mmc0: starting CMD17 arg 00000005 flags 000000b5
[ 16.500375] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 16.520858] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 16.539504] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 16.558136] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 16.578611] mmc0: 512 bytes transferred: 0
[ 16.591827] mmc0: starting CMD17 arg 00000006 flags 000000b5
[ 16.608668] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 16.629138] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 16.647771] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 16.666410] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 16.686874] mmc0: 512 bytes transferred: 0
[ 16.700094] mmc0: starting CMD17 arg 00000007 flags 000000b5
[ 16.716938] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 16.737408] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 16.756042] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 16.774693] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 16.795145] mmc0: 512 bytes transferred: 0
[ 16.808363] Buffer I/O error on device mmcblk0, logical block 0
[ 16.826124] mmc0: starting CMD18 arg 00000000 flags 000000b5
[ 16.842977] mmc0: blksz 512 blocks 8 flags 00000200 tsac 100 ms nsac 0
[ 16.863444] mmc0: CMD12 arg 00000000 flags 0000049d
[ 16.878990] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 16.897629] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00208002
[ 16.916278] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000003
[ 16.934938] mmc0: req done (CMD18): 0: 00000900 00000000 00000000 00000000
[ 16.955390] mmc0: 0 bytes transferred: -84
[ 16.968594] mmc0: (CMD12): 0: 00000b00 00000000 00000000 00000000
[ 16.987767] mmcblk0: retrying using single block read
[ 17.002797] mmc0: starting CMD17 arg 00000000 flags 000000b5
[ 17.019625] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 17.040106] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 17.058750] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00208002
[ 17.077391] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 17.097855] mmc0: 0 bytes transferred: -84
[ 17.111076] mmc0: starting CMD13 arg 00010000 flags 00000195
[ 17.127925] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 17.146577] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 17.167029] mmcblk0: error -84 transferring data, sector 0, nr 8, card
status 0x900
[ 17.189822] end_request: I/O error, dev mmcblk0, sector 0
[ 17.205874] mmc0: starting CMD17 arg 00000001 flags 000000b5
[ 17.222730] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 17.243181] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 17.261824] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00208002
[ 17.280461] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 17.300927] mmc0: 0 bytes transferred: -84
[ 17.314144] mmc0: starting CMD13 arg 00010000 flags 00000195
[ 17.331009] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 17.349648] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 17.370113] mmcblk0: error -84 transferring data, sector 1, nr 7, card
status 0x900
[ 17.392892] end_request: I/O error, dev mmcblk0, sector 1
[ 17.408944] mmc0: starting CMD17 arg 00000002 flags 000000b5
[ 17.425791] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 17.446265] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 17.464904] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 17.483535] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 17.504007] mmc0: 512 bytes transferred: 0
[ 17.517236] mmc0: starting CMD17 arg 00000003 flags 000000b5
[ 17.534069] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 17.554548] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 17.573192] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 17.591844] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 17.612301] mmc0: 512 bytes transferred: 0
[ 17.625513] mmc0: starting CMD17 arg 00000004 flags 000000b5
[ 17.642362] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 17.662846] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 17.681486] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 17.700125] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 17.720597] mmc0: 512 bytes transferred: 0
[ 17.733811] mmc0: starting CMD17 arg 00000005 flags 000000b5
[ 17.750656] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 17.771139] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 17.789791] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 17.808436] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 17.828888] mmc0: 512 bytes transferred: 0
[ 17.842105] mmc0: starting CMD17 arg 00000006 flags 000000b5
[ 17.858954] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 17.879432] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 17.898077] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 17.916717] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 17.937181] mmc0: 512 bytes transferred: 0
[ 17.950419] mmc0: starting CMD17 arg 00000007 flags 000000b5
[ 17.967247] mmc0: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0
[ 17.987702] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
[ 18.006346] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002
[ 18.025004] mmc0: req done (CMD17): 0: 00000900 00000000 00000000 00000000
[ 18.045452] mmc0: 512 bytes transferred: 0
[ 18.058788] Buffer I/O error on device mmcblk0, logical block 0
[ 18.076456] mmcblk0: unable to read partition table
[ 18.091572] mmc0: clock 52000000Hz busmode 2 powermode 2 cs 0 Vdd 7 width 3
timing 1
[ 20.519040] VFS: Cannot open root device "mmcblk0p1" or unknown-block(179,1)
[ 20.540046] Please append a correct "root=" boot option; here are the
available partitions:
[ 20.564884] b300 7757824 mmcblk0 driver: mmcblk
[ 20.580725] Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(179,1)
[ 20.605824] [<c002abe8>] (unwind_backtrace+0x0/0x124) from [<c0038518>]
(panic+0x6c/0x18c)
[ 20.630434] [<c0038518>] (panic+0x6c/0x18c) from [<c0008d94>]
(mount_block_root+0x1c4/0x204)
[ 20.655573] [<c0008d94>] (mount_block_root+0x1c4/0x204) from [<c0008e74>]
(mount_root+0xa0/0xc4)
[ 20.681727] [<c0008e74>] (mount_root+0xa0/0xc4) from [<c0008fb4>]
(prepare_namespace+0x11c/0x174)
[ 20.708124] [<c0008fb4>] (prepare_namespace+0x11c/0x174) from [<c0008750>]
(kernel_init+0x108/0x14c)
[ 20.735311] [<c0008750>] (kernel_init+0x108/0x14c) from [<c00263e0>]
(kernel_thread_exit+0x0/0x8)
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