u-boot.git/drivers/rtc, branch v2021.10 Unnamed repository; edit this file 'description' to name the repository. rtc: zynqmp: Add support for ZynqMP RTC 2021-08-06T07:32:02+00:00 Michal Simek michal.simek@xilinx.com 2021-07-29T08:39:08+00:00 1f065e8fea3043578b60e6f39ff16928c463b92e The whole driver logic is taken from Linux kernel but only set/get/reset functions are implemented. When device is power off RTC is power out of battery. Signed-off-by: Michal Simek <michal.simek@xilinx.com> 
The whole driver logic is taken from Linux kernel but only set/get/reset
functions are implemented. When device is power off RTC is power out of
battery.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
dm: rtc: uclass: Add flag to control sequence numbering 2021-08-06T07:32:02+00:00 Michal Simek michal.simek@xilinx.com 2021-07-29T10:57:12+00:00 23a328769a2638e87131198ad1e93000f69d6393 RTCs are using aliases for sequences. That's why enable DM_UC_FLAG_SEQ_ALIAS for exact RTC indentification. The same flag is used by a lot of other uclasses like mmc, pci, serial, spi, timer, tpm, etc. Signed-off-by: Michal Simek <michal.simek@xilinx.com> 
RTCs are using aliases for sequences. That's why enable
DM_UC_FLAG_SEQ_ALIAS for exact RTC indentification.
The same flag is used by a lot of other uclasses like mmc, pci, serial,
spi, timer, tpm, etc.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
global: Convert simple_strtoul() with hex to hextoul() 2021-08-02T17:32:14+00:00 Simon Glass sjg@chromium.org 2021-07-24T15:03:29+00:00 7e5f460ec457fe310156e399198a41eb0ce1e98c It is a pain to have to specify the value 16 in each call. Add a new hextoul() function and update the code to use it. Add a proper comment to simple_strtoul() while we are here. Signed-off-by: Simon Glass <sjg@chromium.org> 
It is a pain to have to specify the value 16 in each call. Add a new
hextoul() function and update the code to use it.

Add a proper comment to simple_strtoul() while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
rtc: m41t62: fix wrong register use for set/reset ST bit 2021-07-15T23:06:49+00:00 Max Yang MAX.YANG@deltaww.com 2021-05-10T05:23:37+00:00 92cf458f8ad9410dedbedd41d048d26620ce5f12 Fix wrong register use when set/reset ST bit. ST bit is in register M41T62_REG_SEC not in M41T62_REG_ALARM_HOUR. I have not actually tested this. But this seemed buggy from inspection. Fixes: 9bbe210512c4539 ("rtc: m41t62: add oscillator fail bit reset support") Signed-off-by: Max Yang <max.yang@deltaww.com> 
Fix wrong register use when set/reset ST bit.
ST bit is in register M41T62_REG_SEC not in M41T62_REG_ALARM_HOUR.

I have not actually tested this. But this seemed buggy from inspection.

Fixes: 9bbe210512c4539 ("rtc: m41t62: add oscillator fail bit reset support")
Signed-off-by: Max Yang <max.yang@deltaww.com>
lib: move rtc-lib.c to lib 2021-07-14T20:57:35+00:00 Heinrich Schuchardt xypron.glpk@gmx.de 2021-06-12T11:20:07+00:00 e94ef5795231a4e769235c34bca93b394323c55a Function rtc_to_tm() is needed for FAT file system support even if we don't have a real time clock. So move it from drivers/ to lib/. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> 
Function rtc_to_tm() is needed for FAT file system support even if we don't
have a real time clock. So move it from drivers/ to lib/.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
dm: define LOG_CATEGORY for all uclass 2021-07-06T16:38:03+00:00 Patrick Delaunay patrick.delaunay@foss.st.com 2021-04-27T09:02:19+00:00 b953ec2bca1ebe059366e870eb4bec5e7af9c36b Define LOG_CATEGORY for all uclass to allow filtering with log command. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Simon Glass <sjg@chromium.org> 
Define LOG_CATEGORY for all uclass to allow filtering with
log command.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
rtc: davinci: fix date loaded on reset 2021-06-09T16:53:45+00:00 Dario Binacchi dariobin@libero.it 2021-06-02T20:38:05+00:00 08ea87a6de1b9357b6edcfafb90be5bcecfd31c0 On reset, the RTC loads the 2000-01-01 date with a wrong day of the week (Sunday instead of Saturday). Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-9-dariobin@libero.it 
On reset, the RTC loads the 2000-01-01 date with a wrong day of the
week (Sunday instead of Saturday).

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210602203805.11494-9-dariobin@libero.it
rtc: davinci: add driver model support 2021-06-09T16:53:45+00:00 Dario Binacchi dariobin@libero.it 2021-06-02T20:38:04+00:00 9ec8b8b4ca124278d812b530d11e9e48408ce301 Update the driver to support the device tree and the driver model. The read / write helpers in rtc_ops allow access to scratch registers only. The offset parameter is added to the address of the scratch0 register. Support for non-DM has been removed as there were no users. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-8-dariobin@libero.it 
Update the driver to support the device tree and the driver model.
The read / write helpers in rtc_ops allow access to scratch registers
only. The offset parameter is added to the address of the scratch0
register.

Support for non-DM has been removed as there were no users.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210602203805.11494-8-dariobin@libero.it
rtc: davinci: use unlock/lock mechanism 2021-06-09T16:53:44+00:00 Dario Binacchi dariobin@libero.it 2021-06-02T20:38:02+00:00 c7c7c8db00ace48f538f4b51d606cd6e4f537df1 The RTC module contains a kicker mechanism to prevent any spurious writes from changing the register values. To set the time, you must first unlock the TC registers, update them and then lock. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-6-dariobin@libero.it 
The RTC module contains a kicker mechanism to prevent any spurious
writes from changing the register values. To set the time, you must
first unlock the TC registers, update them and then lock.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210602203805.11494-6-dariobin@libero.it
rtc: davinci: check BUSY bit before set TC registers 2021-06-09T16:53:44+00:00 Dario Binacchi dariobin@libero.it 2021-06-02T20:38:01+00:00 79250ef3e263ef23c16c3c06a50834f0dcca4426 To write correct data to the TC registers, the STATUS register must be read until the BUSY bit is equal to zero. Once the BUSY flag is zero, there is a 15 μs access period in which the TC registers can be programmed. The rtc_wait_not_busy() has been inspired by the Kernel. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-5-dariobin@libero.it 
To write correct data to the TC registers, the STATUS register must be
read until the BUSY bit is equal to zero. Once the BUSY flag is zero,
there is a 15 μs access period in which the TC registers can be
programmed.
The rtc_wait_not_busy() has been inspired by the Kernel.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210602203805.11494-5-dariobin@libero.it