stm32mp1: add eMMC support for ED1
Add command GPT support Add EMMC boot support Add the 2 other SDMMC instances for ED1: - SDMMC2 = mmc 1, eMMC on the ED1 board - SDMMC3 = extension connector, deactivated by default Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay
Tom Rini
parent
35a66960cd
commit
0ed232b153
@ -86,6 +86,20 @@
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status = "disabled";
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};
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sdmmc3: sdmmc@48004000 {
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compatible = "st,stm32-sdmmc2";
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reg = <0x48004000 0x400>, <0x48005000 0x400>;
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reg-names = "sdmmc", "delay";
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interrupts = <GIC_SPI 137 IRQ_TYPE_NONE>;
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clocks = <&rcc_clk SDMMC3_K>;
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resets = <&rcc_rst SDMMC3_R>;
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st,idma = <1>;
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cap-sd-highspeed;
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cap-mmc-highspeed;
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max-frequency = <120000000>;
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status = "disabled";
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};
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rcc: rcc@50000000 {
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compatible = "syscon", "simple-mfd";
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@ -288,6 +302,20 @@
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status = "disabled";
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};
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sdmmc2: sdmmc@58007000 {
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compatible = "st,stm32-sdmmc2";
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reg = <0x58007000 0x1000>, <0x58008000 0x1000>;
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reg-names = "sdmmc", "delay";
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interrupts = <GIC_SPI 124 IRQ_TYPE_NONE>;
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clocks = <&rcc_clk SDMMC2_K>;
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resets = <&rcc_rst SDMMC2_R>;
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st,idma = <1>;
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cap-sd-highspeed;
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cap-mmc-highspeed;
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max-frequency = <120000000>;
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status = "disabled";
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};
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i2c4: i2c@5c002000 {
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compatible = "st,stm32f7-i2c";
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reg = <0x5c002000 0x400>;
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@ -11,6 +11,7 @@
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/ {
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aliases {
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mmc0 = &sdmmc1;
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mmc1 = &sdmmc2;
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i2c3 = &i2c4;
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};
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};
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@ -77,6 +78,7 @@
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CLK_SDMMC12_PLL3R
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CLK_I2C46_PCLK5
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CLK_I2C12_PCLK1
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CLK_SDMMC3_PLL3R
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CLK_I2C35_PCLK1
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CLK_UART1_PCLK5
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CLK_UART24_PCLK1
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@ -131,3 +133,22 @@
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&sdmmc1 {
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u-boot,dm-spl;
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};
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/* MMC2 boot */
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&sdmmc2_b4_pins_a {
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u-boot,dm-spl;
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pins {
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u-boot,dm-spl;
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};
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};
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&sdmmc2_d47_pins_a {
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u-boot,dm-spl;
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pins {
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u-boot,dm-spl;
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};
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};
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&sdmmc2 {
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u-boot,dm-spl;
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};
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@ -112,6 +112,31 @@
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bias-pull-up;
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};
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};
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sdmmc2_b4_pins_a: sdmmc2-b4@0 {
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pins {
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pinmux = <STM32_PINMUX('B', 14, AF9)>, /* SDMMC2_D0 */
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<STM32_PINMUX('B', 15, AF9)>, /* SDMMC2_D1 */
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<STM32_PINMUX('B', 3, AF9)>, /* SDMMC2_D2 */
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<STM32_PINMUX('B', 4, AF9)>, /* SDMMC2_D3 */
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<STM32_PINMUX('E', 3, AF9)>, /* SDMMC2_CK */
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<STM32_PINMUX('G', 6, AF10)>; /* SDMMC2_CMD */
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slew-rate = <3>;
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drive-push-pull;
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bias-pull-up;
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};
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};
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sdmmc2_d47_pins_a: sdmmc2-d47@0 {
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pins {
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pinmux = <STM32_PINMUX('A', 8, AF9)>, /* SDMMC2_D4 */
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<STM32_PINMUX('A', 9, AF10)>, /* SDMMC2_D5 */
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<STM32_PINMUX('E', 5, AF9)>, /* SDMMC2_D6 */
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<STM32_PINMUX('D', 3, AF9)>; /* SDMMC2_D7 */
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slew-rate = <3>;
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drive-push-pull;
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bias-pull-up;
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};
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};
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};
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&pinctrl_z {
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@ -160,6 +185,18 @@
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status = "okay";
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};
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&sdmmc2 {
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pinctrl-names = "default";
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pinctrl-0 = <&sdmmc2_b4_pins_a &sdmmc2_d47_pins_a>;
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non-removable;
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no-sd;
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no-sdio;
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st,dirpol;
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st,negedge;
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bus-width = <8>;
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status = "okay";
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};
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&uart4 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart4_pins_a>;
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@ -115,7 +115,31 @@ the supported device trees for stm32mp157 are:
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+ FSBL = spl/u-boot-spl.stm32
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+ SSBL = u-boot.img
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6. Prepare an SDCard
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6. Switch Setting for Boot Mode
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===============================
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You can select the boot mode, on the board ed1 with the switch SW1
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-----------------------------------
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Boot Mode BOOT2 BOOT1 BOOT0
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-----------------------------------
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Reserved 0 0 0
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NOR 0 0 1
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SD-Card 1 1 1
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SD-Card 1 0 1
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eMMC 0 1 0
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NAND 0 1 1
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Recovery 1 1 0
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Recovery 0 0 0
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Recovery is a boot from serial link (UART/USB) and it is used with
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STM32CubeProgrammer tool to load executable in RAM and to update the flash
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devices available on the board (NOR/NAND/eMMC/SDCARD).
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The communication between HOST and board is based on
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- for UARTs : the uart protocol used with all MCU STM32
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- for USB : based on USB DFU 1.1 (without the ST extensions used on MCU STM32)
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7. Prepare an SDCard
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===================
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The minimal requirements for STMP32MP1 boot up to U-Boot are:
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@ -147,13 +171,13 @@ for example: with gpt table with 128 entries
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# sgdisk -o /dev/<SDCard dev>
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b) create minimal image
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# sgdisk --resize-table=128 -a 1 \
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# sgdisk --resize-table=128 -a 1 \
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-n 1:34:545 -c 1:fsbl1 \
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-n 2:546:1057 -c 2:fsbl2 \
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-n 3:1058:5153 -c 3:ssbl \
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-p /dev/<SDCard dev>
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you can add other partition for kernel (rootfs)
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you can add other partition for kernel (rootfs for example)
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c) copy the FSBL (2 times) and SSBL file on the correct partition.
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in this example in partition 1 to 3
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@ -163,29 +187,40 @@ for example: with gpt table with 128 entries
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# dd if=u-boot-spl.stm32 of=/dev/mmcblk0p2
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# dd if=u-boot.img of=/dev/mmcblk0p3
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7. Switch Setting
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==================
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To boot from SDCard, select BootPinMode = 1 1 1 and reset.
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You can select the boot mode, on the board ed1 with the switch SW1
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-----------------------------------
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Boot Mode BOOT2 BOOT1 BOOT0
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-----------------------------------
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Reserved 0 0 0
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NOR 0 0 1
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SD-Card 1 1 1
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SD-Card 1 0 1
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eMMC 0 1 0
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NAND 0 1 1
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Recovery 1 1 0
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Recovery 0 0 0
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8. Prepare eMMC
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===============
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You can use U-Boot to copy binary in eMMC.
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In the next example, you need to boot from SDCARD and the images (u-boot-spl.stm32, u-boot.img)
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are presents on SDCARD (mmc 0) in ext4 partition 4 (bootfs).
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To boot from SDCard, select BootPinMode = 1 1 1 and reset.
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Recovery is a boot from serial link (UART/USB) and it is used with
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STM32CubeProgrammer tool to load executable in RAM and to update the flash
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devices available on the board (NOR/NAND/eMMC/SDCARD).
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The communication between HOST and board is based on
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- for UARTs : the uart protocol used with all MCU STM32
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- for USB : based on USB DFU 1.1 (without the ST extensions used on MCU STM32)
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Then you update the eMMC with the next U-Boot command :
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a) prepare GPT on eMMC,
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example with 2 partitions, bootfs and roots:
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# setenv emmc_part "name=ssbl,size=2MiB;name=bootfs,type=linux,bootable,size=64MiB;name=rootfs,type=linux,size=512"
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# gpt write mmc 1 ${emmc_part}
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b) copy SPL on eMMC on firts boot partition
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(SPL max size is 256kB, with LBA 512, 0x200)
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# ext4load mmc 0:4 0xC0000000 u-boot-spl.stm32
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# mmc dev 1
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# mmc partconf 1 1 1 1
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# mmc write ${fileaddr} 0 200
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# mmc partconf 1 1 1 0
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b) copy U-Boot in first GPT partition of eMMC
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# ext4load mmc 0:4 0xC0000000 u-boot.img
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# mmc dev 1
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# part start mmc 1 1 partstart
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# part size mmc 1 1 partsize
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# mmc write ${fileaddr} ${partstart} ${partsize}
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To boot from eMMC, select BootPinMode = 0 1 0 and reset.
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@ -19,6 +19,7 @@ CONFIG_SYS_PROMPT="STM32MP> "
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# CONFIG_CMD_IMPORTENV is not set
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CONFIG_CMD_MEMINFO=y
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CONFIG_CMD_GPIO=y
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CONFIG_CMD_GPT=y
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CONFIG_CMD_I2C=y
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CONFIG_CMD_MMC=y
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CONFIG_CMD_PMIC=y
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@ -71,6 +71,7 @@
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/*MMC SD*/
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#define CONFIG_SYS_MMC_MAX_DEVICE 3
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#define CONFIG_SUPPORT_EMMC_BOOT
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#if !defined(CONFIG_SPL) || !defined(CONFIG_SPL_BUILD)
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