Hi Vaishnav
On 2/16/2024 7:25 PM, Vaishnav Achath wrote:
J722S EVM has S28HS512T 64 MiB Octal SPI NOR flash connected
to the OSPI interface, add support for the flash and describe
the partition information as per bootloader.
Signed-off-by: Vaishnav Achath <vaishnav.a@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 79 +++++++++++++++++++++++++
1 file changed, 79 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
index 9e12a6e9111f..b1c6499c0c9d 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
@@ -169,6 +169,23 @@ J722S_IOPAD(0x015c, PIN_INPUT, 0) /* (AD25) MDIO0_MDIO */
>;
};
+ ospi0_pins_default: ospi0-default-pins {
+ pinctrl-single,pins = <
+ J722S_IOPAD(0x0000, PIN_OUTPUT, 0) /* (P23) OSPI0_CLK */
+ J722S_IOPAD(0x002c, PIN_OUTPUT, 0) /* (M25) OSPI0_CSn0 */
+ J722S_IOPAD(0x000c, PIN_INPUT, 0) /* (L25) OSPI0_D0 */
+ J722S_IOPAD(0x0010, PIN_INPUT, 0) /* (N24) OSPI0_D1 */
+ J722S_IOPAD(0x0014, PIN_INPUT, 0) /* (N25) OSPI0_D2 */
+ J722S_IOPAD(0x0018, PIN_INPUT, 0) /* (M24) OSPI0_D3 */
+ J722S_IOPAD(0x001c, PIN_INPUT, 0) /* (N21) OSPI0_D4 */
+ J722S_IOPAD(0x0020, PIN_INPUT, 0) /* (N22) OSPI0_D5 */
+ J722S_IOPAD(0x0024, PIN_INPUT, 0) /* (P21) OSPI0_D6 */
+ J722S_IOPAD(0x0028, PIN_INPUT, 0) /* (N20) OSPI0_D7 */
+ J722S_IOPAD(0x0008, PIN_INPUT, 0) /* (P22) OSPI0_DQS */
Could you check, Pin name in comments
For example, Schematic says L22 is for OSPI0_DQS , but comments says P22
However offsets are good .
+ >;
+ bootph-all;
+ };
+
rgmii1_pins_default: rgmii1-default-pins {
pinctrl-single,pins = <
J722S_IOPAD(0x014c, PIN_INPUT, 0) /* (AC25) RGMII1_RD0 */
@@ -290,6 +307,68 @@ exp1: gpio@23 {
};
};
+&ospi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ospi0_pins_default>;
+ status = "okay";
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0x0>;
+ spi-tx-bus-width = <8>;
+ spi-rx-bus-width = <8>;
+ spi-max-frequency = <25000000>;
+ cdns,tshsl-ns = <60>;
+ cdns,tsd2d-ns = <60>;
+ cdns,tchsh-ns = <60>;
+ cdns,tslch-ns = <60>;
+ cdns,read-delay = <4>;
+ bootph-all;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "ospi.tiboot3";
+ reg = <0x00 0x80000>;
+ };
I suggest to keep 1MB to accommodate future size increase
+
+ partition@80000 {
+ label = "ospi.tispl";
+ reg = <0x80000 0x200000>;
+ };
+
+ partition@280000 {
+ label = "ospi.u-boot";
+ reg = <0x280000 0x400000>;
+ };
+
+ partition@680000 {
+ label = "ospi.env";
+ reg = <0x680000 0x40000>;
+ };
+
+ partition@6c0000 {
+ label = "ospi.env.backup";
+ reg = <0x6c0000 0x40000>;
+ };
+
+ partition@800000 {
+ label = "ospi.rootfs";
+ reg = <0x800000 0x37c0000>;
+ };
+
+ partition@3fc0000 {
+ label = "ospi.phypattern";
+ reg = <0x3fc0000 0x40000>;
+ };
+ };
+ };
+
+};
+
&sdhci1 {
/* SD/MMC */
vmmc-supply = <&vdd_mmc1>;
