Hi


Am 26.11.20 um 04:13 schrieb Jaehoon Chung:
Hi,

On 11/19/20 11:39 PM, Otto Meier wrote:
Hi,

with these modifications i get:

U-Boot 2021.01-rc2-00047-g9324c9a823-dirty (Nov 19 2020 - 15:33:00 +0100) 
odroid-c2

Model: Hardkernel ODROID-C2
SoC:   Amlogic Meson GXBB (S905) Revision 1f:c (0:1)
DRAM:  2 GiB
MMC:   mmc@72000: 0, mmc@74000: 1
In:    serial
Out:   serial
Err:   serial
Net:   Could not get PHY for ethernet@c9410000: addr -1
No ethernet found.

Hit any key to stop autoboot:  0
MESON EMMC status = c5ff0000
MESON EMMC status = 01ff2000
MESON EMMC status = c5ff0000
MESON EMMC status = cdff0000
MESON EMMC status = 01ff2800
meson_dm_mmc_send_cmd[226]
MESON EMMC status = c5ff0000
MESON EMMC status = 01ff2800
meson_dm_mmc_send_cmd[226]
MESON EMMC status = c5ff0000
MESON EMMC status = 01ff2000
MESON EMMC status = c5ff0000
MESON EMMC status = cdff0000
MESON EMMC status = 01ff2800
meson_dm_mmc_send_cmd[226]
Card did not respond to voltage select! : -110
MESON EMMC status = c5ff0000
MESON EMMC status = 01ff2000
MESON EMMC status = c5ff0000
MESON EMMC status = cdff0000
MESON EMMC status = 01ff2800
meson_dm_mmc_send_cmd[226]
MESON EMMC status = c5ff0000
MESON EMMC status = 01ff2800
meson_dm_mmc_send_cmd[226]
MESON EMMC status = c5ff0000
MESON EMMC status = 01ff2000
MESON EMMC status = c5ff0000
MESON EMMC status = 00ff2000
MESON EMMC status = c5ff0000
MESON EMMC status = 01ff2800
meson_dm_mmc_send_cmd[226]
Card did not respond to voltage select! : -110
MMC Device 2 not found
no mmc device at slot 2
starting USB...

Hope this shed more light on the issue.

Sorry for late. Did you check more? or Is its status same?
If my understanding is correct, it seems that it's working fine with SD-card, 
right?
When i have checked its register value, resp timeout bit[11] is set. Adnd 
Bus_fsm is 1100.
I don't know what mean bus_fsm(0x1100)..
According to my understanding, resp_timeout value can be increased with cmd's 
argument.
Current u-boot is set to 4s. but maximum timeout value is 32.768s.

But i don't think that it's not affected with your target.. Because you 
mentioned that v2020.04 u-boot is working.
So i'm checking what is different to u-boot v2020.04.

Best Regards,
Jaehoon Chung


Best regards

Am 19.11.20 um 12:50 schrieb Jaehoon Chung:
Hi,


Yes i have tried different things: i have tried uboot-2020.07, 2020.10 all do 
not work. SO
it started with 2020.07. A diff between 2020.04 and 2020.07 in meson_gx_mmc.c 
gives
the following don´t know if it shows some point.

--- u-boot-2020.04/drivers/mmc/meson_gx_mmc.c   2020-11-21 20:42:01.768860866 
+0100
+++ u-boot-2020.07/drivers/mmc/meson_gx_mmc.c   2020-07-06 21:22:53.000000000 
+0200
@@ -4,6 +4,7 @@
  */
#include <common.h>
+#include <clk.h>
 #include <cpu_func.h>
 #include <dm.h>
 #include <fdtdec.h>
@@ -13,6 +14,7 @@
 #include <asm/io.h>
 #include <asm/gpio.h>
 #include <asm/arch/sd_emmc.h>
+#include <linux/delay.h>
 #include <linux/log2.h>
static inline void *get_regbase(const struct mmc *mmc)
@@ -198,7 +200,7 @@
                status = meson_read(mmc, MESON_SD_EMMC_STATUS);
        } while(!(status & STATUS_END_OF_CHAIN) && get_timer(start) < 10000);
- if (!(status & STATUS_END_OF_CHAIN))
+       if (!(status & STATUS_END_OF_CHAIN))
                ret = -ETIMEDOUT;
        else if (status & STATUS_RESP_TIMEOUT)
                ret = -ETIMEDOUT;
@@ -241,12 +243,23 @@
        struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
        struct mmc *mmc = &pdata->mmc;
        struct mmc_config *cfg = &pdata->cfg;
+       struct clk_bulk clocks;
        uint32_t val;
+       int ret;
+
 #ifdef CONFIG_PWRSEQ
        struct udevice *pwr_dev;
-       int ret;
 #endif
+ /* Enable the clocks feeding the MMC controller */
+       ret = clk_get_bulk(dev, &clocks);
+       if (ret)
+               return ret;
+
+       ret = clk_enable_bulk(&clocks);
+       if (ret)
+               return ret;
+
        cfg->voltages = MMC_VDD_33_34 | MMC_VDD_32_33 |
                        MMC_VDD_31_32 | MMC_VDD_165_195;
        cfg->host_caps = MMC_MODE_8BIT | MMC_MODE_4BIT |

---------------------------------

SD Card is working, i can boot to u-boot command line , insert
an SD card and get with u-Boot git:

U-Boot 2021.01-rc2-00136-gd361eafe82-dirty (Nov 24 2020 - 16:23:10 +0100) 
odroid-c2

Model: Hardkernel ODROID-C2
SoC:   Amlogic Meson GXBB (S905) Revision 1f:c (0:1)
DRAM:  2 GiB
MMC:   mmc@72000: 0, mmc@74000: 1
In:    serial
Out:   serial
Err:   serial
Net:   eth0: ethernet@c9410000
Hit any key to stop autoboot:  0

only with emmc i get :

=> mmc info
Card did not respond to voltage select!
=> mmc dev 1
Card did not respond to voltage select!

after inserting SD Card i get:

=> mmc info
Device: mmc@72000
Manufacturer ID: 74
OEM: 4a60
Name: USDU1
Bus Speed: 50000000
Mode: SD High Speed (50MHz)
Rd Block Len: 512
SD version 3.0
High Capacity: Yes
Capacity: 119.1 GiB
Bus Width: 4-bit
Erase Group Size: 512 Bytes
=> mmc dev 1
Card did not respond to voltage select!
=> mmc list
mmc@72000: 0 (SD)
mmc@74000: 1
=>


Any Idea where i can help further?

Best Regards

Otto

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