Add emmc node properties for the eMMC device and add sdio0 node
properties for the microSD slot. Set the frequency for the sdhci
reference clock.
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
---
.../boot/dts/thead/th1520-lichee-module-4a.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
index a802ab110429..1365d3a512a3 100644
--- a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
@@ -29,6 +29,10 @@ &apb_clk {
clock-frequency = <62500000>;
};
+&sdhci_clk {
+ clock-frequency = <198000000>;
+};
+
&uart_sclk {
clock-frequency = <100000000>;
};
@@ -36,3 +40,19 @@ &uart_sclk {
&dmac0 {
status = "okay";
};
+
+&emmc {
+ bus-width = <8>;
+ max-frequency = <198000000>;
+ mmc-hs400-1_8v;
+ non-removable;
+ no-sdio;
+ no-sd;
+ status = "okay";
+};
+
+&sdio0 {
+ bus-width = <4>;
+ max-frequency = <198000000>;
+ status = "okay";
+};
--
2.34.1On Wed, 2023-12-06 at 00:09 -0800, Drew Fustini wrote:
> Add emmc node properties for the eMMC device and add sdio0 node
> properties for the microSD slot. Set the frequency for the sdhci
> reference clock.
Hi Drew,
I've been using the emmc on LicheePi 4A for a while without any problem,
but when I try the microSD slot I get:
[ 0.531804] mmc1: SDHCI controller on ffe7090000.mmc [ffe7090000.mmc] using ADMA 64-bit
[ 0.842674] mmc1: Tuning failed, falling back to fixed sampling clock
[ 0.855139] mmc1: tuning execution failed: -5
[ 0.859609] mmc1: error -5 whilst initialising SD card
[ 11.359879] mmc1: Timeout waiting for hardware cmd interrupt.
[ 11.365661] mmc1: sdhci: ============ SDHCI REGISTER DUMP ===========
[ 11.372105] mmc1: sdhci: Sys addr: 0x00000001 | Version: 0x00000005
[ 11.378547] mmc1: sdhci: Blk size: 0x00007040 | Blk cnt: 0x00000000
[ 11.384989] mmc1: sdhci: Argument: 0x00000000 | Trn mode: 0x00000010
[ 11.391432] mmc1: sdhci: Present: 0x03ff0000 | Host ctl: 0x00000017
[ 11.397873] mmc1: sdhci: Power: 0x0000000f | Blk gap: 0x00000000
[ 11.404312] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x0000000f
[ 11.410753] mmc1: sdhci: Timeout: 0x00000004 | Int stat: 0x00000000
[ 11.417192] mmc1: sdhci: Int enab: 0x00000020 | Sig enab: 0x00000020
[ 11.423633] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
[ 11.430073] mmc1: sdhci: Caps: 0x3f69c881 | Caps_1: 0x08008177
[ 11.436513] mmc1: sdhci: Cmd: 0x00000102 | Max curr: 0x00191919
[ 11.442954] mmc1: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x07725f7f
[ 11.449394] mmc1: sdhci: Resp[2]: 0x32db7900 | Resp[3]: 0x00400e00
[ 11.455835] mmc1: sdhci: Host ctl2: 0x0000300b
[ 11.460280] mmc1: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x0000000000882220
[ 11.467416] mmc1: sdhci: ============================================
[ 11.563828] mmc1: Tuning failed, falling back to fixed sampling clock
[ 11.576053] mmc1: tuning execution failed: -5
[ 11.646438] mmc1: new high speed SDXC card at address aaaa
[ 11.653170] mmcblk1: mmc1:aaaa SR256 238 GiB
I can write something into the SD card and read it back though. But
this makes me reluctant to use the SD card for "some real thing" afraid
of a data loss.
The SD card is a SanDisk Extreme Pro 256GB (rated "U3, A2, V30").
Any idea how to debug this issue further? (Maybe I should try change
the SD card first but I'd like to discuss the issue before paying money
for another card.)
> Signed-off-by: Drew Fustini <dfustini@baylibre.com>
> ---
> .../boot/dts/thead/th1520-lichee-module-4a.dtsi | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
> index a802ab110429..1365d3a512a3 100644
> --- a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
> +++ b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
> @@ -29,6 +29,10 @@ &apb_clk {
> clock-frequency = <62500000>;
> };
>
> +&sdhci_clk {
> + clock-frequency = <198000000>;
> +};
> +
> &uart_sclk {
> clock-frequency = <100000000>;
> };
> @@ -36,3 +40,19 @@ &uart_sclk {
> &dmac0 {
> status = "okay";
> };
> +
> +&emmc {
> + bus-width = <8>;
> + max-frequency = <198000000>;
> + mmc-hs400-1_8v;
> + non-removable;
> + no-sdio;
> + no-sd;
> + status = "okay";
> +};
> +
> +&sdio0 {
> + bus-width = <4>;
> + max-frequency = <198000000>;
> + status = "okay";
> +};
--
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University
On Sat, Mar 02, 2024 at 10:13:55PM +0800, Xi Ruoyao wrote:
> On Wed, 2023-12-06 at 00:09 -0800, Drew Fustini wrote:
> > Add emmc node properties for the eMMC device and add sdio0 node
> > properties for the microSD slot. Set the frequency for the sdhci
> > reference clock.
>
> Hi Drew,
>
> I've been using the emmc on LicheePi 4A for a while without any problem,
> but when I try the microSD slot I get:
>
> [ 0.531804] mmc1: SDHCI controller on ffe7090000.mmc [ffe7090000.mmc] using ADMA 64-bit
> [ 0.842674] mmc1: Tuning failed, falling back to fixed sampling clock
> [ 0.855139] mmc1: tuning execution failed: -5
> [ 0.859609] mmc1: error -5 whilst initialising SD card
> [ 11.359879] mmc1: Timeout waiting for hardware cmd interrupt.
> [ 11.365661] mmc1: sdhci: ============ SDHCI REGISTER DUMP ===========
> [ 11.372105] mmc1: sdhci: Sys addr: 0x00000001 | Version: 0x00000005
> [ 11.378547] mmc1: sdhci: Blk size: 0x00007040 | Blk cnt: 0x00000000
> [ 11.384989] mmc1: sdhci: Argument: 0x00000000 | Trn mode: 0x00000010
> [ 11.391432] mmc1: sdhci: Present: 0x03ff0000 | Host ctl: 0x00000017
> [ 11.397873] mmc1: sdhci: Power: 0x0000000f | Blk gap: 0x00000000
> [ 11.404312] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x0000000f
> [ 11.410753] mmc1: sdhci: Timeout: 0x00000004 | Int stat: 0x00000000
> [ 11.417192] mmc1: sdhci: Int enab: 0x00000020 | Sig enab: 0x00000020
> [ 11.423633] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
> [ 11.430073] mmc1: sdhci: Caps: 0x3f69c881 | Caps_1: 0x08008177
> [ 11.436513] mmc1: sdhci: Cmd: 0x00000102 | Max curr: 0x00191919
> [ 11.442954] mmc1: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x07725f7f
> [ 11.449394] mmc1: sdhci: Resp[2]: 0x32db7900 | Resp[3]: 0x00400e00
> [ 11.455835] mmc1: sdhci: Host ctl2: 0x0000300b
> [ 11.460280] mmc1: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x0000000000882220
> [ 11.467416] mmc1: sdhci: ============================================
> [ 11.563828] mmc1: Tuning failed, falling back to fixed sampling clock
> [ 11.576053] mmc1: tuning execution failed: -5
> [ 11.646438] mmc1: new high speed SDXC card at address aaaa
> [ 11.653170] mmcblk1: mmc1:aaaa SR256 238 GiB
>
> I can write something into the SD card and read it back though. But
> this makes me reluctant to use the SD card for "some real thing" afraid
> of a data loss.
>
> The SD card is a SanDisk Extreme Pro 256GB (rated "U3, A2, V30").
>
> Any idea how to debug this issue further? (Maybe I should try change
> the SD card first but I'd like to discuss the issue before paying money
> for another card.)
Revy informed me that downclocking from 198 MHz to 100 MHz [1] has been
observed to solve this problem. Could you try the following dts patch?
Also, I have noticed the T-Head's 5.10 vendor kernel does have some
updates in sdhci-of-dwcmshc.c related to tuning. I'll look at porting
those to the upstream driving.
Thanks,
Drew
[1] https://github.com/revyos/thead-kernel/pull/62
[2] https://github.com/revyos/thead-kernel/commit/afef388b8e26f0d77f9d2261b6e57991941a213f#diff-ba729b399f3cb86d6a2503890c3626a6426c1572a54f24cd7ab3337f5fc75674
------ [cut here] --------
From db4d406fc15c76317993a39a72061d3df47e86f0 Mon Sep 17 00:00:00 2001
From: Drew Fustini <dfustini@tenstorrent.com>
Date: Sat, 2 Mar 2024 08:21:50 -0800
Subject: [PATCH] riscv: dts: thead: downgrade microSD to 100 MHz max
Downgrade max freq for microSD controller from 198 MHz to 100 MHz to
avoid timeout errors.
Signed-off-by: Drew Fustini <dfustini@tenstorrent.com>
---
arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
index 1365d3a512a3..d6ae671f94a9 100644
--- a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
@@ -53,6 +53,6 @@ &emmc {
&sdio0 {
bus-width = <4>;
- max-frequency = <198000000>;
+ max-frequency = <100000000>;
status = "okay";
};
--
2.34.1
On Sat, 2024-03-02 at 08:25 -0800, Drew Fustini wrote: > On Sat, Mar 02, 2024 at 10:13:55PM +0800, Xi Ruoyao wrote: > > On Wed, 2023-12-06 at 00:09 -0800, Drew Fustini wrote: > > > Add emmc node properties for the eMMC device and add sdio0 node > > > properties for the microSD slot. Set the frequency for the sdhci > > > reference clock. > > > > Hi Drew, > > > > I've been using the emmc on LicheePi 4A for a while without any problem, > > but when I try the microSD slot I get: > > > > [ 0.531804] mmc1: SDHCI controller on ffe7090000.mmc [ffe7090000.mmc] using ADMA 64-bit > > [ 0.842674] mmc1: Tuning failed, falling back to fixed sampling clock > > [ 0.855139] mmc1: tuning execution failed: -5 > > [ 0.859609] mmc1: error -5 whilst initialising SD card > > [ 11.359879] mmc1: Timeout waiting for hardware cmd interrupt. > > [ 11.365661] mmc1: sdhci: ============ SDHCI REGISTER DUMP =========== > > [ 11.372105] mmc1: sdhci: Sys addr: 0x00000001 | Version: 0x00000005 > > [ 11.378547] mmc1: sdhci: Blk size: 0x00007040 | Blk cnt: 0x00000000 > > [ 11.384989] mmc1: sdhci: Argument: 0x00000000 | Trn mode: 0x00000010 > > [ 11.391432] mmc1: sdhci: Present: 0x03ff0000 | Host ctl: 0x00000017 > > [ 11.397873] mmc1: sdhci: Power: 0x0000000f | Blk gap: 0x00000000 > > [ 11.404312] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x0000000f > > [ 11.410753] mmc1: sdhci: Timeout: 0x00000004 | Int stat: 0x00000000 > > [ 11.417192] mmc1: sdhci: Int enab: 0x00000020 | Sig enab: 0x00000020 > > [ 11.423633] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 > > [ 11.430073] mmc1: sdhci: Caps: 0x3f69c881 | Caps_1: 0x08008177 > > [ 11.436513] mmc1: sdhci: Cmd: 0x00000102 | Max curr: 0x00191919 > > [ 11.442954] mmc1: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x07725f7f > > [ 11.449394] mmc1: sdhci: Resp[2]: 0x32db7900 | Resp[3]: 0x00400e00 > > [ 11.455835] mmc1: sdhci: Host ctl2: 0x0000300b > > [ 11.460280] mmc1: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x0000000000882220 > > [ 11.467416] mmc1: sdhci: ============================================ > > [ 11.563828] mmc1: Tuning failed, falling back to fixed sampling clock > > [ 11.576053] mmc1: tuning execution failed: -5 > > [ 11.646438] mmc1: new high speed SDXC card at address aaaa > > [ 11.653170] mmcblk1: mmc1:aaaa SR256 238 GiB > > > > I can write something into the SD card and read it back though. But > > this makes me reluctant to use the SD card for "some real thing" afraid > > of a data loss. > > > > The SD card is a SanDisk Extreme Pro 256GB (rated "U3, A2, V30"). > > > > Any idea how to debug this issue further? (Maybe I should try change > > the SD card first but I'd like to discuss the issue before paying money > > for another card.) > > Revy informed me that downclocking from 198 MHz to 100 MHz [1] has been > observed to solve this problem. Could you try the following dts patch? I'm still getting the same error. > Also, I have noticed the T-Head's 5.10 vendor kernel does have some > updates in sdhci-of-dwcmshc.c related to tuning. I'll look at porting > those to the upstream driving. Maybe to solve the problem we need both the downclocking and these changes then... -- Xi Ruoyao <xry111@xry111.site> School of Aerospace Science and Technology, Xidian University
On Wed, Dec 6, 2023 at 4:09 PM Drew Fustini <dfustini@baylibre.com> wrote:
>
> Add emmc node properties for the eMMC device and add sdio0 node
> properties for the microSD slot. Set the frequency for the sdhci
> reference clock.
>
> Signed-off-by: Drew Fustini <dfustini@baylibre.com>
> ---
> .../boot/dts/thead/th1520-lichee-module-4a.dtsi | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
> index a802ab110429..1365d3a512a3 100644
> --- a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
> +++ b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
> @@ -29,6 +29,10 @@ &apb_clk {
> clock-frequency = <62500000>;
> };
>
> +&sdhci_clk {
> + clock-frequency = <198000000>;
> +};
> +
> &uart_sclk {
> clock-frequency = <100000000>;
> };
> @@ -36,3 +40,19 @@ &uart_sclk {
> &dmac0 {
> status = "okay";
> };
> +
> +&emmc {
> + bus-width = <8>;
> + max-frequency = <198000000>;
> + mmc-hs400-1_8v;
> + non-removable;
> + no-sdio;
> + no-sd;
> + status = "okay";
> +};
> +
> +&sdio0 {
> + bus-width = <4>;
> + max-frequency = <198000000>;
> + status = "okay";
> +};
>
> --
> 2.34.1
>
Reviewed-by: Guo Ren <guoren@kernel.org>
--
Best Regards
Guo Ren
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