u-boot.git/drivers/ufs, branch master Unnamed repository; edit this file 'description' to name the repository. ufs: Remap CPU to bus addresses using dev_phys_to_bus() 2026-04-08T17:53:44+00:00 Marek Vasut marek.vasut+renesas@mailbox.org 2026-03-15T23:58:26+00:00 4a95a2a9e13ab05e4fc309f92bc33998d80afe01 Use dev_phys_to_bus() to convert CPU addresses of DMA descriptors into bus addresses of DMA descriptors. This is necessary on hardware which does not have 1:1 mapping between CPU and memory addressed by the DMA. This has no impact on other hardware which does not need this conversion. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> 
Use dev_phys_to_bus() to convert CPU addresses of DMA descriptors
into bus addresses of DMA descriptors. This is necessary on hardware
which does not have 1:1 mapping between CPU and memory addressed by
the DMA. This has no impact on other hardware which does not need
this conversion.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Merge tag 'u-boot-ufs-20260313' of https://source.denx.de/u-boot/custodians/u-boot-ufs into next 2026-03-13T16:52:03+00:00 Tom Rini trini@konsulko.com 2026-03-13T15:01:53+00:00 dba21bf0b6ececa4bbc15ac93b3cdf4b09286ed7 - ufs_hba_ops callbacks cleanup - Rockchip UFS reset support - UFS support in SPL 
- ufs_hba_ops callbacks cleanup
- Rockchip UFS reset support
- UFS support in SPL
ufs: rockchip: Add device reset support 2026-03-12T08:30:44+00:00 Alexey Charkov alchark@gmail.com 2026-01-20T18:09:04+00:00 67d8731d4aad25be00e27eeef3602c519619405e Wire up the GPIO line which Rockchip RK3576 UFS controller uses to reset the connected UFS device. This seems necessary at least for some UFS modules and fixes the following error while enumerating UFS storage: ufshcd-rockchip ufshc@2a2d0000: ufshcd_link_startup: Device not present ufshcd-rockchip ufshc@2a2d0000: link startup failed -6 ufshcd-rockchip ufshc@2a2d0000: ufshcd_pltfrm_init() failed -6 Note that the GPIO descriptor for device resets is already required by the DT binding (link enclosed). Link: https://elixir.bootlin.com/linux/v6.18.5/source/Documentation/devicetree/bindings/ufs/rockchip,rk3576-ufshc.yaml#L70 Fixes: 76465ce21ee4 ("ufs: rockchip: Add initial support") Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Alexey Charkov <alchark@gmail.com> Link: https://patch.msgid.link/20260120-rk3576-ufs-v5-3-0edb61b301b7@gmail.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> 
Wire up the GPIO line which Rockchip RK3576 UFS controller uses to reset
the connected UFS device.

This seems necessary at least for some UFS modules and fixes the following
error while enumerating UFS storage:

ufshcd-rockchip ufshc@2a2d0000: ufshcd_link_startup: Device not present
ufshcd-rockchip ufshc@2a2d0000: link startup failed -6
ufshcd-rockchip ufshc@2a2d0000: ufshcd_pltfrm_init() failed -6

Note that the GPIO descriptor for device resets is already required by the
DT binding (link enclosed).

Link: https://elixir.bootlin.com/linux/v6.18.5/source/Documentation/devicetree/bindings/ufs/rockchip,rk3576-ufshc.yaml#L70
Fixes: 76465ce21ee4 ("ufs: rockchip: Add initial support")
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Alexey Charkov <alchark@gmail.com>
Link: https://patch.msgid.link/20260120-rk3576-ufs-v5-3-0edb61b301b7@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
drivers: ufs: fix typo in struct ufs_dev_cmd kernel-doc 2026-03-05T15:51:51+00:00 Julien Stephan jstephan@baylibre.com 2026-03-05T08:49:04+00:00 d908dd98de5c335a213d882746d033158db02cce Fix "associated" typo in struct ufs_dev_cmd kernel-doc. Signed-off-by: Julien Stephan <jstephan@baylibre.com> Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com> Link: https://patch.msgid.link/20260305-ufs-ufs_hba_ops-cleanup-v3-3-e153ffab98f5@baylibre.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> 
Fix "associated" typo in struct ufs_dev_cmd kernel-doc.

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://patch.msgid.link/20260305-ufs-ufs_hba_ops-cleanup-v3-3-e153ffab98f5@baylibre.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
drivers: ufs: add helper for phy_initialization callback 2026-03-05T15:51:51+00:00 Julien Stephan jstephan@baylibre.com 2026-03-05T08:49:03+00:00 aa1b3f2583f14d2ecf7d5c455f1500790e3bcdf2 Introduce ufshcd_ops_phy_initialization() as a helper for invoking the phy_initialization callback from ufs_hba_ops. This mirrors the existing helper pattern used for other ufs_hba_ops callbacks and keeps the call sites consistent and easier to maintain. Signed-off-by: Julien Stephan <jstephan@baylibre.com> Link: https://patch.msgid.link/20260305-ufs-ufs_hba_ops-cleanup-v3-2-e153ffab98f5@baylibre.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> 
Introduce ufshcd_ops_phy_initialization() as a helper for invoking the
phy_initialization callback from ufs_hba_ops.

This mirrors the existing helper pattern used for other ufs_hba_ops
callbacks and keeps the call sites consistent and easier to maintain.

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://patch.msgid.link/20260305-ufs-ufs_hba_ops-cleanup-v3-2-e153ffab98f5@baylibre.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
drivers: ufs: handle return values of ufs_hba_ops callbacks 2026-03-05T15:51:51+00:00 Julien Stephan jstephan@baylibre.com 2026-03-05T08:49:02+00:00 0bb1d511e4f5deb4e8426ba2c8fc8f4859999341 The return values of ufshcd_ops_link_startup_notify(), ufshcd_ops_hce_enable_notify(), ufshcd_ops_init(), and ufshcd_device_reset() are currently ignored. Check and propagate these return values properly and emit appropriate error messages on error. While at it, remove the ufshcd_device_reset() wrapper, which just call ufshcd_device_reset(). Signed-off-by: Julien Stephan <jstephan@baylibre.com> Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com> Link: https://patch.msgid.link/20260305-ufs-ufs_hba_ops-cleanup-v3-1-e153ffab98f5@baylibre.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> 
The return values of ufshcd_ops_link_startup_notify(),
ufshcd_ops_hce_enable_notify(), ufshcd_ops_init(), and
ufshcd_device_reset() are currently ignored.

Check and propagate these return values properly and emit appropriate
error messages on error.

While at it, remove the ufshcd_device_reset() wrapper, which just call
ufshcd_device_reset().

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://patch.msgid.link/20260305-ufs-ufs_hba_ops-cleanup-v3-1-e153ffab98f5@baylibre.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
drivers: ufs: remove unused ufs_post_bind() declaration 2026-03-02T14:20:02+00:00 Julien Stephan jstephan@baylibre.com 2026-02-03T09:21:26+00:00 47905f28468e3524cb5f775f52928cdcc568815a Commit 067c1b033282 ("ufs: Call ufs_scsi_bind() from uclass .post_bind") inlined ufs_scsi_bind() into ufs_post_bind() as trivial device_bind_driver() call. ufs_scsi_bind() is no longer referenced anywhere in the codebase, so drop its declaration from include/ufs.h. Drivers used to include <ufs.h> to include prototype of ufs_scsi_bind() function, so we can now safely remove such includes. Fixes: 067c1b033282 ("ufs: Call ufs_scsi_bind() from uclass .post_bind") Signed-off-by: Julien Stephan <jstephan@baylibre.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20260203-cleanup-ufs-header-v1-1-4c10424485f0@baylibre.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> 
Commit 067c1b033282 ("ufs: Call ufs_scsi_bind() from uclass .post_bind")
inlined ufs_scsi_bind() into ufs_post_bind() as trivial
device_bind_driver() call.

ufs_scsi_bind() is no longer referenced anywhere in the codebase, so
drop its declaration from include/ufs.h.

Drivers used to include <ufs.h> to include prototype of ufs_scsi_bind()
function, so we can now safely remove such includes.

Fixes: 067c1b033282 ("ufs: Call ufs_scsi_bind() from uclass .post_bind")
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260203-cleanup-ufs-header-v1-1-4c10424485f0@baylibre.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
ufs: Disable UTP command timeout in slow mode 2026-03-02T14:19:17+00:00 Padmarao Begari padmarao.begari@amd.com 2025-11-26T15:06:41+00:00 080b4f099558212703a772d3ca74c0521cf5a7e8 When the UFS controller is operating in slow (PWM) mode, the driver is disabled the timeout for UTP send commands. In high-speed mode, the timeout remains enabled to detect stalled or failed transfers. This change ensures reliable operation in slow mode, where command completion may take longer and timeouts are not required. Signed-off-by: Padmarao Begari <padmarao.begari@amd.com> Signed-off-by: Michal Simek <michal.simek@amd.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/e6deb9086afab9d2bdd53db8ecbc7db93af5204d.1764169598.git.michal.simek@amd.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> 
When the UFS controller is operating in slow (PWM) mode,
the driver is disabled the timeout for UTP send commands.
In high-speed mode, the timeout remains enabled to
detect stalled or failed transfers. This change ensures reliable
operation in slow mode, where command completion may take longer
and timeouts are not required.

Signed-off-by: Padmarao Begari <padmarao.begari@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/e6deb9086afab9d2bdd53db8ecbc7db93af5204d.1764169598.git.michal.simek@amd.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
scsi: ufs: renesas: Add reusable functions 2026-01-27T20:46:44+00:00 Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com 2026-01-03T00:22:31+00:00 bd07aa1aa6c3c868dcffad0b4c21dfaa89232658 Since some settings can be reused on other UFS controller (R-Car S4-8 ES1.2), add reusable functions. Ported from Linux kernel commit 44ca16f4970e ("scsi: ufs: renesas: Add reusable functions") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/446d67b751a96645799de3aeefec539735aa78c8.1741179611.git.geert+renesas@glider.be Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> 
Since some settings can be reused on other UFS controller (R-Car S4-8
ES1.2), add reusable functions.

Ported from Linux kernel commit
44ca16f4970e ("scsi: ufs: renesas: Add reusable functions")

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/446d67b751a96645799de3aeefec539735aa78c8.1741179611.git.geert+renesas@glider.be
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
scsi: ufs: renesas: Refactor 0x10ad/0x10af PHY settings 2026-01-27T20:46:44+00:00 Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com 2026-01-03T00:22:30+00:00 8bf3dc99aff623425ee3e0824a1df0cf2587c9d1 Extract specific PHY setting of the 0x10a[df] registers into a new function. Ported from Linux kernel commit cca2b807c227 ("scsi: ufs: renesas: Refactor 0x10ad/0x10af PHY settings") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/110eafd1ee24f9db0285a5e2bca224e35962268a.1741179611.git.geert+renesas@glider.be Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> 
Extract specific PHY setting of the 0x10a[df] registers into a new
function.

Ported from Linux kernel commit
cca2b807c227 ("scsi: ufs: renesas: Refactor 0x10ad/0x10af PHY settings")

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/110eafd1ee24f9db0285a5e2bca224e35962268a.1741179611.git.geert+renesas@glider.be
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>