u-boot/arch/arm/dts/stm32h743i-disco-u-boot.dtsi
dillon min ffca1967ed ARM: dts: stm32: split sdram pin & timing parameter into specific board dts
As different boards has their own sdram hw connection, mount different
sdram modules, so move sdram timing parameter and pin configuration
to their board device tree.

Signed-off-by: dillon min <dillon.minfei@gmail.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-04-09 11:53:00 +02:00

101 lines
2.6 KiB
Text

// SPDX-License-Identifier: GPL-2.0+
#include <stm32h7-u-boot.dtsi>
&fmc {
/*
* Memory configuration from sdram datasheet IS42S32800G-6BLI
* first bank is bank@0
* second bank is bank@1
*/
bank1: bank@1 {
st,sdram-control = /bits/ 8 <NO_COL_9
NO_ROW_12
MWIDTH_32
BANKS_4
CAS_2
SDCLK_3
RD_BURST_EN
RD_PIPE_DL_0>;
st,sdram-timing = /bits/ 8 <TMRD_1
TXSR_1
TRAS_1
TRC_6
TRP_2
TWR_1
TRCD_1>;
st,sdram-refcount = <1539>;
};
};
&pinctrl {
fmc_pins: fmc@0 {
pins {
pinmux = <STM32_PINMUX('D', 0, AF12)>,
<STM32_PINMUX('D', 1, AF12)>,
<STM32_PINMUX('D', 8, AF12)>,
<STM32_PINMUX('D', 9, AF12)>,
<STM32_PINMUX('D',10, AF12)>,
<STM32_PINMUX('D',14, AF12)>,
<STM32_PINMUX('D',15, AF12)>,
<STM32_PINMUX('E', 0, AF12)>,
<STM32_PINMUX('E', 1, AF12)>,
<STM32_PINMUX('E', 7, AF12)>,
<STM32_PINMUX('E', 8, AF12)>,
<STM32_PINMUX('E', 9, AF12)>,
<STM32_PINMUX('E',10, AF12)>,
<STM32_PINMUX('E',11, AF12)>,
<STM32_PINMUX('E',12, AF12)>,
<STM32_PINMUX('E',13, AF12)>,
<STM32_PINMUX('E',14, AF12)>,
<STM32_PINMUX('E',15, AF12)>,
<STM32_PINMUX('F', 0, AF12)>,
<STM32_PINMUX('F', 1, AF12)>,
<STM32_PINMUX('F', 2, AF12)>,
<STM32_PINMUX('F', 3, AF12)>,
<STM32_PINMUX('F', 4, AF12)>,
<STM32_PINMUX('F', 5, AF12)>,
<STM32_PINMUX('F',11, AF12)>,
<STM32_PINMUX('F',12, AF12)>,
<STM32_PINMUX('F',13, AF12)>,
<STM32_PINMUX('F',14, AF12)>,
<STM32_PINMUX('F',15, AF12)>,
<STM32_PINMUX('G', 0, AF12)>,
<STM32_PINMUX('G', 1, AF12)>,
<STM32_PINMUX('G', 2, AF12)>,
<STM32_PINMUX('G', 4, AF12)>,
<STM32_PINMUX('G', 5, AF12)>,
<STM32_PINMUX('G', 8, AF12)>,
<STM32_PINMUX('G',15, AF12)>,
<STM32_PINMUX('H', 5, AF12)>,
<STM32_PINMUX('H', 6, AF12)>,
<STM32_PINMUX('H', 7, AF12)>,
<STM32_PINMUX('H', 8, AF12)>,
<STM32_PINMUX('H', 9, AF12)>,
<STM32_PINMUX('H',10, AF12)>,
<STM32_PINMUX('H',11, AF12)>,
<STM32_PINMUX('H',12, AF12)>,
<STM32_PINMUX('H',13, AF12)>,
<STM32_PINMUX('H',14, AF12)>,
<STM32_PINMUX('H',15, AF12)>,
<STM32_PINMUX('I', 0, AF12)>,
<STM32_PINMUX('I', 1, AF12)>,
<STM32_PINMUX('I', 2, AF12)>,
<STM32_PINMUX('I', 3, AF12)>,
<STM32_PINMUX('I', 4, AF12)>,
<STM32_PINMUX('I', 5, AF12)>,
<STM32_PINMUX('I', 6, AF12)>,
<STM32_PINMUX('I', 7, AF12)>,
<STM32_PINMUX('I', 9, AF12)>,
<STM32_PINMUX('I',10, AF12)>;
slew-rate = <3>;
};
};
};