Add a way to detect board id and pcb id.
Signed-off-by: Michael Trimarchi <mich...@amarulasolutions.com>
---
arch/arm/dts/rk3288-tinker.dtsi | 33 ++++++++
board/rockchip/tinker_rk3288/tinker-rk3288.c | 83 ++++++++++++++++++++
2 files changed, 116 insertions(+)
diff --git a/arch/arm/dts/rk3288-tinker.dtsi b/arch/arm/dts/rk3288-tinker.dtsi
index 2f816af47f..67a0374050 100644
--- a/arch/arm/dts/rk3288-tinker.dtsi
+++ b/arch/arm/dts/rk3288-tinker.dtsi
@@ -53,6 +53,21 @@
#clock-cells = <0>;
};
+ board_info: board-info {
+ tinker,pcbid0 = <&gpio2 8 GPIO_ACTIVE_HIGH>;
+ tinker,pcbid1 = <&gpio2 9 GPIO_ACTIVE_HIGH>;
+ tinker,pcbid2 = <&gpio2 10 GPIO_ACTIVE_HIGH>;
+ tinker,pid0 = <&gpio2 1 GPIO_ACTIVE_HIGH>;
+ tinker,pid1 = <&gpio2 2 GPIO_ACTIVE_HIGH>;
+ tinker,pid2 = <&gpio2 3 GPIO_ACTIVE_HIGH>;
+ };
+
+ board_control: board-control {
+ tinker,sdp = <&gpio6 5 GPIO_ACTIVE_HIGH>;
+ tinker,usblimit = <&gpio6 6 GPIO_ACTIVE_HIGH>;
+ tinker,maskemmc = <&gpio6 7 GPIO_ACTIVE_HIGH>;
+ };
+
gpio-keys {
compatible = "gpio-keys";
autorepeat;
@@ -461,6 +476,10 @@
};
&pinctrl {
+ /* Pins that are not explicitely used by any devices */
+ pinctrl-names = "default";
+ pinctrl-0 = <&tinker_pin_hog>;
+
pcfg_pull_none_drv_8ma: pcfg-pull-none-drv-8ma {
drive-strength = <8>;
};
@@ -482,6 +501,20 @@
};
};
+ hog {
+ tinker_pin_hog: tinker-pin-hog {
+ rockchip,pins = <2 RK_PA1 RK_FUNC_GPIO &pcfg_pull_up>,
/* project id 0 */
+ <2 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>,
/* project id 1 */
+ <2 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>,
/* project id 2 */
+ <2 RK_PB0 RK_FUNC_GPIO
&pcfg_pull_none>, /* pcb id 0 */
+ <2 RK_PB1 RK_FUNC_GPIO
&pcfg_pull_none>, /* pcb id 1 */
+ <2 RK_PB2 RK_FUNC_GPIO
&pcfg_pull_none>, /* pcb id 2 */
+ <6 RK_PA5 RK_FUNC_GPIO
&pcfg_pull_none>, /* sdp detect */
+ <6 RK_PA6 RK_FUNC_GPIO &pcfg_pull_up>,
/* current limit */
+ <6 RK_PA7 RK_FUNC_GPIO
&pcfg_pull_none>; /* emmc mask */
+ };
+ };
+
eth_phy {
eth_phy_pwr: eth-phy-pwr {
rockchip,pins = <0 6 RK_FUNC_GPIO &pcfg_pull_none>;
diff --git a/board/rockchip/tinker_rk3288/tinker-rk3288.c
b/board/rockchip/tinker_rk3288/tinker-rk3288.c
index 7a0c3c997d..7c65521f55 100644
--- a/board/rockchip/tinker_rk3288/tinker-rk3288.c
+++ b/board/rockchip/tinker_rk3288/tinker-rk3288.c
@@ -5,12 +5,26 @@
#include <common.h>
#include <dm.h>
+#include <dm/device-internal.h>
+#include <asm/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
#include <env.h>
#include <i2c_eeprom.h>
#include <netdev.h>
#include <asm/arch-rockchip/bootrom.h>
#include <asm/io.h>
+enum project_id {
+ tinker_board_s = 0,
+ tinker_board = 7,
+};
+
+enum pcb_id {
+ SR,
+ ER,
+ PR,
+};
+
static int get_ethaddr_from_eeprom(u8 *addr)
{
int ret;
@@ -23,10 +37,14 @@ static int get_ethaddr_from_eeprom(u8 *addr)
return i2c_eeprom_read(dev, 0, addr, 6);
}
+int detect_board_init(void);
+
int rk3288_board_late_init(void)
{
u8 ethaddr[6];
+ detect_board_init();
+
if (get_ethaddr_from_eeprom(ethaddr))
return 0;
@@ -45,3 +63,68 @@ int mmc_get_env_dev(void)
return 1;
}
+
+int detect_board_init(void)
+{
+ int ret = 0, i;
+ ofnode node;
+ struct udevice *gpio_dev2 = NULL;
+ struct udevice *gpio_dev6 = NULL;
+ struct gpio_desc pcbid[3];
+ struct gpio_desc pid[3];
+ enum project_id prjid;
+ char gpio_name[64];
+ enum pcb_id pcbversion;
+
+ debug("%s: detect boad\n", __func__);
+
+ 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);
+
+ node = ofnode_path("/board-info");
+ if (!ofnode_valid(node)) {
+ pr_err("%s: no /board-info node?\n", __func__);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < 3; i++) {
+ snprintf(gpio_name, 64, "tinker,pid%d", i);
+ if (gpio_request_by_name_nodev(node, gpio_name, 0,
+ &pid[i], GPIOD_IS_IN)) {
+ printf("Failed to request %s\n", gpio_name);
+ continue;
+ }
+ }
+
+ for (i = 0; i < 3; i++) {
+ snprintf(gpio_name, 64, "tinker,pcbid%d", i);
+ if (gpio_request_by_name_nodev(node, gpio_name, 0,
+ &pcbid[i], GPIOD_IS_IN)) {
+ printf("Failed to request %s\n", gpio_name);
+ continue;
+ }
+ }
+
+ prjid = dm_gpio_get_value(&pid[0]) | \
+ dm_gpio_get_value(&pid[1]) << 1 | \
+ dm_gpio_get_value(&pid[2]) << 2;
+ pcbversion = dm_gpio_get_value(&pcbid[0]) | \
+ dm_gpio_get_value(&pcbid[1]) << 1 | \
+ dm_gpio_get_value(&pcbid[2]) << 2;
+
+ printf("Detect %s rev %d\n",
+ prjid == tinker_board ? "Tinker" : "Tinker S", pcbversion);
+
+ return ret;
+}
--
2.17.1
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