Since 'commit f4fcba5c5b ("clk: implement clk_set_defaults()")'
STM32F4 family board can't boot.
Above patch calls clk_set_rate() for all nodes with assigned-clock-rates
property. Clock driver for STM32F family doesn't implement .set_rate
callback which make clk_set_defaults() exit on error and prevent board
to boot.
Fixes: f4fcba5c5b ("clk: implement clk_set_defaults()")
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
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>
