PLLSAIP divider uses 2 bits (bits 16 and 17) into RCC_PLLSAICFGR
register, available combination are :
00: PLLSAIP = 2
01: PLLSAIP = 4
10: PLLSAIP = 6
11: PLLSAIP = 8
Previously, the divider value was incorrectly set to 6.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Move SYSCFG clock setup into configure_clocks() instead of calling
clock_setup() from board file.
As this clock is only needed in case of ethernet enabled and as
both stm32f4 and stm32f7 are using the Designware ethernet IP,
we use CONFIG_ETH_DESIGNWARE to only enable this clock if needed.
Move the RMII setup from board_early_init_f() to board_init()
to insure that RMII bit is set only when clock driver is initialized.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Thanks to 'commit ba1f966725 ("net: designware: add clock support")'
we don't need anymore to setup the STMMAC clock in board.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
All current STM32F4 supported boards uses a 8MHz external oscillator.
All current STM32F7 supported boards uses a 25MHz external oscillator.
In order to introduce the new stm32f429-evaluation board which uses a
25MHz external oscillator without creating a dedicated struct
stm32_clk_info for this board, retrieve the external oscillator
frequency from DT and set pll_m accordingly to obtain 1MHz for the VCO.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Use available DM clk_stm32f.c driver instead of dedicated
mach-stm32/stm32f4/clock.c.
Migrate periph_clock defines from stm32_periph.h directly in
CLK driver. These periph_clock defines will be removed when STMMAC,
TIMER2 and SYSCFG drivers will support DM CLK.
Enable also CLK flag.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
MMC block needs 48Mhz source clock, for that we choose
to select the SAI PLL.
Update also stm32_clock_get_rate() to retrieve the MMC
clock source needed in MMC driver.
STM32F4 uses a different RCC variant than STM32F7. For STM32F4
sdmmc clocks bit are located into dckcfgr register whereas there
are located into dckcfgr2 registers on STM32F7.
In both registers, bits CK48MSEL and SDMMC1SEL are located at
the same position.
Signed-off-by: Christophe Priouzeau <christophe.priouzeau@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
Like STM32H7, now STM32F4/F7 clock drivers are binded by
MFD stm32_rcc driver.
This also allows to add reset support to STM32F4/F7 SoCs family.
As Reset driver is not part of SPL supported drivers, don't bind it
in case of SPL to avoid that stm32_rcc_bind() returns an error.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
STM32F4 doesn't get rcc.h file, to avoid compilation
issue, migrate RCC related defines from rcc.h to driver
file and remove rcc.h file.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
Now that clk_stm32f7.c manages clocks for both STM32F4 and F7 SoCs
rename it to a more generic clk_stm32f.c
Fix also some checkpatch errors/warnings.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
STM32F4 and STM32F7 RCC clock IP are very similar.
Same driver can be used to managed RCC clock for
these 2 SoCs.
Differences between STM32F4 and F7 will be managed using
different compatible string :
_ overdrive clock is only supported by STM32F7
_ different sys_pll_psc parameters can be used between STM32F4
and STM32F7.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
Add a dedicated stm32f7 compatible string to use clk_stm32f7
driver with both STM32F4 and STM32F7 SoCs.
It will be needed to manage differences between these 2 SoCs.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
PWR IP is used to enable over-drive feature in
order to reach a higher frequency.
Get its base address from DT instead of hard-coded value
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
Fix clock division factor initialization for RCC_PLLCFGR
registers.
PLLR bits (bit 31-28) in RCC_PLLCFGR must not be cleared,
it's a forbidden value. So update RCC_PLLCFGR using
clrsetbits_le32() to set only necessary bits fields.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
U-Boot widely uses error() as a bit noisier variant of printf().
This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:
# define __compiletime_error(message) __attribute__((error(message)))
This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux. (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)
Let's convert error() into now treewide-available pr_err().
Done with the help of Coccinelle, excluing tools/ directory.
The semantic patch I used is as follows:
// <smpl>
@@@@
-error
+pr_err
(...)
// </smpl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
Add missing .priv_auto_alloc_size() callback.
Previously private struct stm32_clk was not allocate
which leads to unpredictable behaviour
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
All drivers which was using clock_get() are now using
clk_get_rate() from clock framework, now it's safe to
remove clock_get().
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
clean the code by removing unused enums, structs and
defines related to clocks
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
Add clock framework .get_rate callback.
This step will allow to convert all drivers which was using
proprietary clock_get() to use clock framework .get_rate().
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
Retrieve RCC base address from DT, this will prepare
the ground for future STM32 SoCs support.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
Also remove its declaration from stm32.h which
is no more needed.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
Update the xlate() method to use ofnode_phandle_args instead of the fdtdec
variant. This will allow drivers to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
With this gpio driver supporting DM, there is no need to enable clocks
for different gpios (for pin muxing) in the board specific code.
Need to increase the allocatable area required before relocation from 0x400 to
0xC00 becuase of 10 new gpio devices(& new gpio class) added in device tree.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Before clock driver availability it was required to enable usart1 clock
for serial init but now with clock driver is taking care of usart1 clock.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
add basic clock driver support for stm32f7 to enable clocks required by
the peripherals.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This patch adds glue code required for enabling the designware
mac on stm32f7 devices.
Signed-off-by: Michael Kurz <michi.kurz@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Use the clock setup function defined in clock.c instead of setting the
clock bits directly in the drivers.
Remove register definitions of RCC in rcc.h as these are already
defined in the struct in stm32.h
Signed-off-by: Michael Kurz <michi.kurz@gmail.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
Cleanup stm32f7 files:
- use BIT macro
- use GENMASK macro
- use rcc struct instead of macro additions
Add missing stm32f7 register in rcc struct
Signed-off-by: Michael Kurz <michi.kurz@gmail.com>
Acked-by: Vikas MANOCHA<vikas.manocha@st.com>
Per Vikas' request, the problem this commit is supposed to be solving is
something he doesn't see and further this introduces additional hardware
requirements.
This reverts commit 4b2fd720a7.
Signed-off-by: Tom Rini <trini@konsulko.com>
This change is to remove a halt at about 200KiB
while sending a large(1MiB) binary to a micro controller using USART1.
USART1 is connected to a PC via an on-board ST-Link debugger
that also functions as a USB-Serial converter.
However, it seems to loss some data occasionally.
So I changed the serial port to USART6 and connected it to the PC using
an FTDI USB-Serial cable, therefore the transmission was successfully
completed.
Signed-off-by: Toshifumi NISHINAGA <tnishinaga.dev@gmail.com>
This patch adds 200MHz clock configuration for stm32f746 discovery board.
This patch is based on STM32F4 and emcraft's[1].
[1]: https://github.com/EmcraftSystems/u-boot
Signed-off-by: Toshifumi NISHINAGA <tnishinaga.dev@gmail.com>
Patrice Chotard
Masahiro Yamada
Simon Glass
Vikas Manocha
Michael Kurz
Tom Rini
Toshifumi NISHINAGA