[U-Boot] [PATCH v2 3/5] nitrogen6x: reserve used gpios
Troy Kisky
troy.kisky at boundarydevices.com
Fri Jun 28 01:45:58 UTC 2019
This prevents messages like
gpio at 20a0000: get_value: error: gpio GPIO2_2 not reserved
when CONFIG_DM_GPIO is enabled.
Also, when CONFIG_DM_GPIO is enabled, checkboard is too
early to use gpio_get_value, so read it directly on failure.
Signed-off-by: Troy Kisky <troy.kisky at boundarydevices.com>
---
board/boundary/nitrogen6x/nitrogen6x.c | 30 +++++++++++++++++++++++++-
1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
index 84d7cee740..d0e9eb835d 100644
--- a/board/boundary/nitrogen6x/nitrogen6x.c
+++ b/board/boundary/nitrogen6x/nitrogen6x.c
@@ -381,6 +381,15 @@ int board_eth_init(bd_t *bis)
struct phy_device *phydev = NULL;
int ret;
+ gpio_request(WL12XX_WL_IRQ_GP, "wifi_irq");
+ gpio_request(IMX_GPIO_NR(6, 30), "rgmii_rxc");
+ gpio_request(IMX_GPIO_NR(6, 25), "rgmii_rd0");
+ gpio_request(IMX_GPIO_NR(6, 27), "rgmii_rd1");
+ gpio_request(IMX_GPIO_NR(6, 28), "rgmii_rd2");
+ gpio_request(IMX_GPIO_NR(6, 29), "rgmii_rd3");
+ gpio_request(IMX_GPIO_NR(6, 24), "rgmii_rx_ctl");
+ gpio_request(IMX_GPIO_NR(3, 23), "rgmii_reset_sabrelite");
+ gpio_request(IMX_GPIO_NR(1, 27), "rgmii_reset_nitrogen6x");
setup_iomux_enet();
#ifdef CONFIG_FEC_MXC
@@ -911,7 +920,16 @@ int board_init(void)
int checkboard(void)
{
- if (gpio_get_value(WL12XX_WL_IRQ_GP))
+ int ret = gpio_get_value(WL12XX_WL_IRQ_GP);
+
+ if (ret < 0) {
+ /* The gpios have not been probed yet. Read it myself */
+ struct gpio_regs *regs = (struct gpio_regs *)GPIO6_BASE_ADDR;
+ int gpio = WL12XX_WL_IRQ_GP & 0x1f;
+
+ ret = (readl(®s->gpio_psr) >> gpio) & 0x01;
+ }
+ if (ret)
puts("Board: Nitrogen6X\n");
else
puts("Board: SABRE Lite\n");
@@ -1013,6 +1031,16 @@ static const struct boot_mode board_boot_modes[] = {
int misc_init_r(void)
{
+ gpio_request(RGB_BACKLIGHT_GP, "lvds backlight");
+ gpio_request(LVDS_BACKLIGHT_GP, "lvds backlight");
+ gpio_request(GP_USB_OTG_PWR, "usbotg power");
+ gpio_request(IMX_GPIO_NR(7, 12), "usbh1 hub reset");
+ gpio_request(IMX_GPIO_NR(2, 2), "back");
+ gpio_request(IMX_GPIO_NR(2, 4), "home");
+ gpio_request(IMX_GPIO_NR(2, 1), "menu");
+ gpio_request(IMX_GPIO_NR(2, 3), "search");
+ gpio_request(IMX_GPIO_NR(7, 13), "volup");
+ gpio_request(IMX_GPIO_NR(4, 5), "voldown");
#ifdef CONFIG_PREBOOT
preboot_keys();
#endif
--
2.18.0
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