Re: [PATCH v3 0/5] exynos-ufs: Add support for UFS HCI
From: PaweÅ Chmiel
Date: Thu Mar 19 2020 - 15:42:29 EST
On Thu, 2020-03-19 at 20:30 +0530, Alim Akhtar wrote:
> This patch-set introduces UFS (Universal Flash Storage) host controller support
> for Samsung family SoC. Mostly, it consists of UFS PHY and host specific driver.
>
> - Changes since v2:
> * fixed build warning by kbuild test robot
> * Added Reported-by tags
>
> - Changes since v1:
> * fixed make dt_binding_check error as pointed by Rob
> * Addressed Krzysztof's review comments
> * Added Reviewed-by tags
>
>
> patch 1/5: define devicetree bindings for UFS PHY
> patch 2/5: Adds UFS PHY driver
> patch 3/5: define devicetree bindings for UFS HCI
> patch 4/5: Adds Samsung UFS HCI driver
> patch 5/5: Enabled UFS on exynos7 platform
Hi
Is this compatible with Exynos7420? Looking at u-boot source code,
there is Espresso7420 - isn't it the same device? Also this driver
looks very similar to the one from vendor kernel sources (for my
device).
I did tried to run this on my Exynos7420 based device (Samsung S6 Edge
phone) with 5.6-rc6, to get any storage working (since it doesn't have sdcard slot).
At first i got error in exynos_ufs_config_smu. Looking at vendor
sources, on my device only secureos is able to write to those registers
so i fixed it by using smc calls and driver probes fine. Will this be
also supported by driver (maybe in future)?
But now got another error
[ 1.610464] exynos-ufshc 15570000.ufs: ufshcd_intr: Unhandled
interrupt 0x00000000
[ 1.610629] host_regs: 00000000: 0383ff0f 00000000 00000200 00000000
[ 1.610747] host_regs: 00000010: 00000101 00007fce 00000000 00000000
[ 1.610863] host_regs: 00000020: 00000000 00030e75 00000000 00000000
[ 1.614727] host_regs: 00000030: 0000000f 00000000 00000000 00000000
[ 1.621061] host_regs: 00000040: 00000000 00000000 00000000 00000000
[ 1.627396] host_regs: 00000050: f8c37000 00000000 00000001 00000000
[ 1.633730] host_regs: 00000060: 00000001 00000000 00000000 00000000
[ 1.640065] host_regs: 00000070: f9644000 00000000 00000000 00000000
[ 1.646400] host_regs: 00000080: 00000001 00000000 00000000 00000000
[ 1.652734] host_regs: 00000090: 00000002 95290000 00000000 00000000
[ 1.747649] exynos-ufshc 15570000.ufs: ufshcd_intr: Unhandled
interrupt 0x00000000
[ 1.747807] host_regs: 00000000: 0383ff0f 00000000 00000200 00000000
[ 1.747924] host_regs: 00000010: 00000101 00007fce 00000000 00000000
[ 1.748041] host_regs: 00000020: 00000000 00030e75 00000000 00000000
[ 1.751909] host_regs: 00000030: 0000000f 00000000 00000000 00000000
[ 1.758244] host_regs: 00000040: 00000000 00000000 00000000 00000000
[ 1.764578] host_regs: 00000050: f8c37000 00000000 00000001 00000000
[ 1.770913] host_regs: 00000060: 00000001 00000000 00000000 00000000
[ 1.777248] host_regs: 00000070: f9644000 00000000 00000000 00000000
[ 1.783582] host_regs: 00000080: 00000001 00000000 00000000 00000000
[ 1.789917] host_regs: 00000090: 00000002 95290000 00000000 00000000
[ 1.884841] exynos-ufshc 15570000.ufs: ufshcd_intr: Unhandled
interrupt 0x00000000
[ 1.884999] host_regs: 00000000: 0383ff0f 00000000 00000200 00000000
[ 1.885116] host_regs: 00000010: 00000101 00007fce 00000000 00000000
[ 1.885233] host_regs: 00000020: 00000000 00030e75 00000000 00000000
[ 1.889100] host_regs: 00000030: 0000000f 00000000 00000000 00000000
[ 1.895435] host_regs: 00000040: 00000000 00000000 00000000 00000000
[ 1.901770] host_regs: 00000050: f8c37000 00000000 00000001 00000000
[ 1.908104] host_regs: 00000060: 00000001 00000000 00000000 00000000
[ 1.914439] host_regs: 00000070: f9644000 00000000 00000000 00000000
[ 1.920773] host_regs: 00000080: 00000001 00000000 00000000 00000000
[ 1.927108] host_regs: 00000090: 00000002 95290000 00000000 00000000
[ 2.998155] exynos-ufshc 15570000.ufs: ufshcd_query_flag: Sending
flag query for idn 1 failed, err = -11
[ 4.502138] exynos-ufshc 15570000.ufs: ufshcd_query_flag: Sending
flag query for idn 1 failed, err = -11
[ 6.006137] exynos-ufshc 15570000.ufs: ufshcd_query_flag: Sending
flag query for idn 1 failed, err = -11
[ 6.006311] exynos-ufshc 15570000.ufs: ufshcd_query_flag_retry:
query attribute, opcode 5, idn 1, failed with error -11 after 3 retires
[ 6.006545] exynos-ufshc 15570000.ufs: ufshcd_complete_dev_init
reading fDeviceInit flag failed with error -11
Do You have any idea what could be wrong?
Thanks
>
> Note: This series is based on Linux-5.6-rc6 (commit: fb33c6510d55)
>
>
> Alim Akhtar (5):
> dt-bindings: phy: Document Samsung UFS PHY bindings
> phy: samsung-ufs: add UFS PHY driver for samsung SoC
> Documentation: devicetree: ufs: Add DT bindings for exynos UFS host
> controller
> scsi: ufs-exynos: add UFS host support for Exynos SoCs
> arm64: dts: Add node for ufs exynos7
>
> .../bindings/phy/samsung,ufs-phy.yaml | 62 +
> .../devicetree/bindings/ufs/ufs-exynos.txt | 104 ++
> .../boot/dts/exynos/exynos7-espresso.dts | 16 +
> arch/arm64/boot/dts/exynos/exynos7.dtsi | 44 +-
> drivers/phy/samsung/Kconfig | 9 +
> drivers/phy/samsung/Makefile | 1 +
> drivers/phy/samsung/phy-exynos7-ufs.h | 85 +
> drivers/phy/samsung/phy-samsung-ufs.c | 311 ++++
> drivers/phy/samsung/phy-samsung-ufs.h | 100 ++
> drivers/scsi/ufs/Kconfig | 12 +
> drivers/scsi/ufs/Makefile | 1 +
> drivers/scsi/ufs/ufs-exynos.c | 1399 +++++++++++++++++
> drivers/scsi/ufs/ufs-exynos.h | 268 ++++
> drivers/scsi/ufs/unipro.h | 41 +
> include/linux/phy/phy-samsung-ufs.h | 70 +
> 15 files changed, 2521 insertions(+), 2 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
> create mode 100644 Documentation/devicetree/bindings/ufs/ufs-exynos.txt
> create mode 100644 drivers/phy/samsung/phy-exynos7-ufs.h
> create mode 100644 drivers/phy/samsung/phy-samsung-ufs.c
> create mode 100644 drivers/phy/samsung/phy-samsung-ufs.h
> create mode 100644 drivers/scsi/ufs/ufs-exynos.c
> create mode 100644 drivers/scsi/ufs/ufs-exynos.h
> create mode 100644 include/linux/phy/phy-samsung-ufs.h
>