On 04/03/2018 02:26 PM, Chen-Yu Tsai wrote:
On Tue, Apr 3, 2018 at 3:29 PM, Jagan Teki <[email protected]> wrote:
On 04/03/2018 12:19 PM, Chen-Yu Tsai wrote:
On Tue, Apr 3, 2018 at 2:44 PM, Jagan Teki <[email protected]> wrote:
Hi,
Anyone observed SDIO CMD5 timeout for A64 boards.?
I've custom board runs with linux-next and I'm unable to probe SDIO on
mmc1, observed CMD5 timeout.
Here is the log and dts node, request for any help?
Log:
[ 0.340446] sunxi-mmc 1c10000.mmc: could not find pctldev for node
/soc/pinctrl@1c20800/mmc1-pins, deferring p
robe
[ 1.927883] mmc1: clock 0Hz busmode 2 powermode 1 cs 0 Vdd 21 width
1 timing 0
[ 1.948765] mmc1: clock 400000Hz busmode 2 powermode 2 cs 0 Vdd 21
width 1 timing 0
[ 2.008318] mmc1: mmc_rescan_try_freq: trying to init card at 400000
Hz
[ 2.018121] mmc1: starting CMD52 arg 00000c00 flags 00000195
[ 2.055592] mmc1: req done (CMD52): -110: 00000000 00000000 00000000
00000000
[ 2.064813] mmc1: starting CMD52 arg 80000c08 flags 00000195
[ 2.078524] mmc1: req done (CMD52): -110: 00000000 00000000 00000000
00000000
[ 2.095536] mmc1: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 21
width 1 timing 0
[ 2.108250] mmc1: starting CMD0 arg 00000000 flags 000000c0
[ 2.115158] mmc1: req done (CMD0): 0: 00000000 00000000 00000000
00000000
[ 2.132065] mmc1: clock 400000Hz busmode 2 powermode 2 cs 0 Vdd 21
width 1 timing 0
[ 2.143698] mmc1: starting CMD8 arg 000001aa flags 000002f5
[ 2.155126] mmc1: req done (CMD8): -110: 00000000 00000000 00000000
00000000
[ 2.164988] mmc1: starting CMD5 arg 00000000 flags 000002e1
[ 2.175369] mmc1: req failed (CMD5): -110, retrying...
[ 2.185932] mmc1: req failed (CMD5): -110, retrying...
[ 2.196754] mmc1: req failed (CMD5): -110, retrying...
dt node:
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* WL-PMU-EN:
PL2 */
};
&mmc1 {
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
vmmc-supply = <®_aldo1>;
vqmmc-supply = <®_dldo4>;
mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
non-removable;
status = "okay";
brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&r_pio>;
interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* WL-WAKE-AP:
PL3 */
interrupt-names = "host-wake";
};
};
Are you certain everything is powered up? On some boards they use
different
regulators for vqmmc on the WiFi chip and pin VCC on the SoC side. Also
try
Yes, I didn't find much different in regulator setup on vqmmc, vmmc it is
similar to bananapi-m64 which is drive to dldo4 for vqmmc and aldo1 for vmmc
like this
vqmmc:
DLDO4 VCC-PG VCC-IO-WIFI
| | |
|------------|--------|
|
ELDO1 |
|------------|
Have you tried enabling both regulators?
At same time no? I've tried one after another.
vmmc:
ALDO1 VCC-WIFI
| |
|------------|
|
DCDC1 |
|------------|
This is kind of a weird design. Why would you power it from an LDO when
you already have it connected to an always on DC-DC converter output?
true, This is what I really don't understand.
Jagan.
--
You received this message because you are subscribed to the Google Groups
"linux-sunxi" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
