Hi Simon
+ project_id: project-id {
+ pid0: bid0 {
+ rockchip,pins = <2 RK_PA1 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+
+ pid1: pid1 {
+ rockchip,pins = <2 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+
+ pid2: pid2 {
+ rockchip,pins = <2 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ pcb_id: pcb-id {
+ pcbid0: pcbid0 {
+ rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ pcbid1: pcbid1 {
+ rockchip,pins = <2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ pcbid2: pcbid2 {
+ rockchip,pins = <2 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
I have defined the pins needed for tinker board and understand what
board revision is. Now I would like to use them from spl_board_init
and I have
them in dtb
+&pcbid0 {
+ u-boot,dm-spl;
+};
+
+&pcbid1 {
+ u-boot,dm-spl;
+};
+
+&pcbid2 {
+ u-boot,dm-spl;
+};
+
+&pid1 {
+ u-boot,dm-spl;
+};
+
+&pid2 {
+ u-boot,dm-spl;
+};
+
+&pid0 {
+ u-boot,dm-spl;
+};
+
+&pid1 {
+ u-boot,dm-spl;
+};
+
+&pid2 {
+ u-boot,dm-spl;
+};
Now is there a way to reference them easily after probe the UCLASS_GPIO?
+int spl_board_init(void)
+{
+ int ret;
+ struct udevice *gpio_dev2 = NULL;
+ struct udevice *gpio_dev6 = NULL;
+
+ if (uclass_get_device_by_name(UCLASS_GPIO, "gpio2@ff790000",
&gpio_dev2) ||
+ uclass_get_device_by_name(UCLASS_GPIO, "gpio6@ff7d0000",
&gpio_dev6)) {
+ printf("Could not get GPIO device.\n");
+ return -EINVAL;
+ }
+
+ ret = device_probe(gpio_dev2);
+ if (ret)
+ pr_err("%s - probe failed: %d\n", gpio_dev2->name, ret);
+
+ ret = device_probe(gpio_dev6);
+ if (ret)
+ pr_err("%s - probe failed: %d\n", gpio_dev6->name, ret);
Michael
--
| Michael Nazzareno Trimarchi Amarula Solutions BV |
| COO - Founder Cruquiuskade 47 |
| +31(0)851119172 Amsterdam 1018 AM NL |
| [`as] http://www.amarulasolutions.com |
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