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authorTim Harvey <tharvey@gateworks.com>2015-05-08 18:28:28 -0700
committerStefano Babic <sbabic@denx.de>2015-05-15 19:21:25 +0200
commitdef6031533cd5c03ccf5a6235f967d4dd549bcd8 (patch)
tree6b013b37286ec9cbc5b27be2321bc9bdb99ce8ec /board/gateworks
parente1b4770ce45dc4f7b66ffdb6933145fc3f81c042 (diff)
downloadtalos-obmc-uboot-def6031533cd5c03ccf5a6235f967d4dd549bcd8.tar.gz
talos-obmc-uboot-def6031533cd5c03ccf5a6235f967d4dd549bcd8.zip
imx: ventana: register gpio's with gpio_request
Prior to using a gpio a call to gpio_request() should be called to register it with the gpio subsystem. Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Diffstat (limited to 'board/gateworks')
-rw-r--r--board/gateworks/gw_ventana/gw_ventana.c77
1 files changed, 57 insertions, 20 deletions
diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index 1e54912a01..8818be4b72 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -268,14 +268,15 @@ static void setup_gpmi_nand(void)
}
#endif
-static void setup_iomux_enet(void)
+static void setup_iomux_enet(int gpio)
{
SETUP_IOMUX_PADS(enet_pads);
/* toggle PHY_RST# */
- gpio_direction_output(GP_PHY_RST, 0);
+ gpio_request(gpio, "phy_rst#");
+ gpio_direction_output(gpio, 0);
mdelay(2);
- gpio_set_value(GP_PHY_RST, 1);
+ gpio_set_value(gpio, 1);
}
static void setup_iomux_uart(void)
@@ -295,6 +296,7 @@ static iomux_v3_cfg_t const usb_pads[] = {
int board_ehci_hcd_init(int port)
{
struct ventana_board_info *info = &ventana_info;
+ int gpio;
SETUP_IOMUX_PADS(usb_pads);
@@ -303,18 +305,22 @@ int board_ehci_hcd_init(int port)
case '3': /* GW53xx */
case '5': /* GW552x */
SETUP_IOMUX_PAD(PAD_GPIO_9__GPIO1_IO09 | DIO_PAD_CFG);
- gpio_direction_output(IMX_GPIO_NR(1, 9), 0);
- mdelay(2);
- gpio_set_value(IMX_GPIO_NR(1, 9), 1);
+ gpio = (IMX_GPIO_NR(1, 9));
break;
case '4': /* GW54xx */
SETUP_IOMUX_PAD(PAD_SD1_DAT0__GPIO1_IO16 | DIO_PAD_CFG);
- gpio_direction_output(IMX_GPIO_NR(1, 16), 0);
- mdelay(2);
- gpio_set_value(IMX_GPIO_NR(1, 16), 1);
+ gpio = (IMX_GPIO_NR(1, 16));
break;
+ default:
+ return 0;
}
+ /* request and toggle hub rst */
+ gpio_request(gpio, "usb_hub_rst#");
+ gpio_direction_output(gpio, 0);
+ mdelay(2);
+ gpio_set_value(gpio, 1);
+
return 0;
}
@@ -322,6 +328,7 @@ int board_ehci_power(int port, int on)
{
if (port)
return 0;
+ gpio_request(GP_USB_OTG_PWR, "usb_otg_pwr");
gpio_set_value(GP_USB_OTG_PWR, on);
return 0;
}
@@ -333,6 +340,7 @@ static struct fsl_esdhc_cfg usdhc_cfg = { USDHC3_BASE_ADDR };
int board_mmc_getcd(struct mmc *mmc)
{
/* Card Detect */
+ gpio_request(GP_SD3_CD, "sd_cd");
gpio_direction_input(GP_SD3_CD);
return !gpio_get_value(GP_SD3_CD);
}
@@ -364,6 +372,7 @@ int board_spi_cs_gpio(unsigned bus, unsigned cs)
static void setup_spi(void)
{
+ gpio_request(IMX_GPIO_NR(3, 19), "spi_cs");
gpio_direction_output(IMX_GPIO_NR(3, 19), 1);
SETUP_IOMUX_PADS(ecspi1_pads);
}
@@ -399,7 +408,7 @@ int board_eth_init(bd_t *bis)
{
#ifdef CONFIG_FEC_MXC
if (board_type != GW551x && board_type != GW552x) {
- setup_iomux_enet();
+ setup_iomux_enet(GP_PHY_RST);
cpu_eth_init(bis);
}
#endif
@@ -449,6 +458,7 @@ static void enable_lvds(struct display_info_t const *dev)
writel(reg, &iomux->gpr[2]);
/* Enable Backlight */
+ gpio_request(IMX_GPIO_NR(1, 18), "bklt_en");
SETUP_IOMUX_PAD(PAD_SD1_CMD__GPIO1_IO18 | DIO_PAD_CFG);
gpio_direction_output(IMX_GPIO_NR(1, 18), 1);
}
@@ -588,6 +598,7 @@ static void setup_display(void)
writel(reg, &iomux->gpr[3]);
/* Backlight CABEN on LVDS connector */
+ gpio_request(IMX_GPIO_NR(1, 10), "bklt_gpio");
SETUP_IOMUX_PAD(PAD_SD2_CLK__GPIO1_IO10 | DIO_PAD_CFG);
gpio_direction_output(IMX_GPIO_NR(1, 10), 0);
}
@@ -1158,9 +1169,11 @@ static void setup_board_gpio(int board)
return;
/* RS232_EN# */
+ gpio_request(GP_RS232_EN, "rs232_en");
gpio_direction_output(GP_RS232_EN, (hwconfig("rs232")) ? 0 : 1);
/* MSATA Enable */
+ gpio_request(GP_MSATA_SEL, "msata_en");
if (is_cpu_type(MXC_CPU_MX6Q) &&
test_bit(EECONFIG_SATA, info->config)) {
gpio_direction_output(GP_MSATA_SEL,
@@ -1175,50 +1188,71 @@ static void setup_board_gpio(int board)
gpio_cfg[board].pcie_rst = IMX_GPIO_NR(3, 23);
/* assert PCI_RST# (released by OS when clock is valid) */
+ gpio_request(gpio_cfg[board].pcie_rst, "pci_rst#");
gpio_direction_output(gpio_cfg[board].pcie_rst, 0);
#endif
/* turn off (active-high) user LED's */
for (i = 0; i < ARRAY_SIZE(gpio_cfg[board].leds); i++) {
- if (gpio_cfg[board].leds[i])
+ if (gpio_cfg[board].leds[i]) {
+ gpio_requestf(gpio_cfg[board].leds[i], "led_user%d", i);
gpio_direction_output(gpio_cfg[board].leds[i], 1);
+ }
}
/* Expansion Mezzanine IO */
- if (gpio_cfg[board].mezz_pwren)
+ if (gpio_cfg[board].mezz_pwren) {
+ gpio_request(gpio_cfg[board].mezz_pwren, "mezz_pwr");
gpio_direction_output(gpio_cfg[board].mezz_pwren, 0);
- if (gpio_cfg[board].mezz_irq)
+ }
+ if (gpio_cfg[board].mezz_irq) {
+ gpio_request(gpio_cfg[board].mezz_irq, "mezz_irq#");
gpio_direction_input(gpio_cfg[board].mezz_irq);
+ }
/* RS485 Transmit Enable */
- if (gpio_cfg[board].rs485en)
+ if (gpio_cfg[board].rs485en) {
+ gpio_request(gpio_cfg[board].rs485en, "rs485_en");
gpio_direction_output(gpio_cfg[board].rs485en, 0);
+ }
/* GPS_SHDN */
- if (gpio_cfg[board].gps_shdn)
+ if (gpio_cfg[board].gps_shdn) {
+ gpio_request(gpio_cfg[board].gps_shdn, "gps_shdn");
gpio_direction_output(gpio_cfg[board].gps_shdn, 1);
+ }
/* Analog video codec power enable */
- if (gpio_cfg[board].vidin_en)
+ if (gpio_cfg[board].vidin_en) {
+ gpio_request(gpio_cfg[board].vidin_en, "anavidin_en");
gpio_direction_output(gpio_cfg[board].vidin_en, 1);
+ }
/* DIOI2C_DIS# */
- if (gpio_cfg[board].dioi2c_en)
+ if (gpio_cfg[board].dioi2c_en) {
+ gpio_request(gpio_cfg[board].dioi2c_en, "dioi2c_dis#");
gpio_direction_output(gpio_cfg[board].dioi2c_en, 0);
+ }
/* PCICK_SSON: disable spread-spectrum clock */
- if (gpio_cfg[board].pcie_sson)
+ if (gpio_cfg[board].pcie_sson) {
+ gpio_request(gpio_cfg[board].pcie_sson, "pci_sson");
gpio_direction_output(gpio_cfg[board].pcie_sson, 0);
+ }
/* USBOTG Select (PCISKT or FrontPanel) */
- if (gpio_cfg[board].usb_sel)
+ if (gpio_cfg[board].usb_sel) {
+ gpio_request(gpio_cfg[board].usb_sel, "usb_pcisel");
gpio_direction_output(gpio_cfg[board].usb_sel,
(hwconfig("usb_pcisel")) ? 1 : 0);
+ }
/* PCISKT_WDIS# (Wireless disable GPIO to miniPCIe sockets) */
- if (gpio_cfg[board].wdis)
+ if (gpio_cfg[board].wdis) {
+ gpio_request(gpio_cfg[board].wdis, "wlan_dis");
gpio_direction_output(gpio_cfg[board].wdis, 1);
+ }
/*
* Configure DIO pinmux/padctl registers
@@ -1248,6 +1282,7 @@ static void setup_board_gpio(int board)
}
imx_iomux_v3_setup_pad(cfg->gpio_padmux[cputype] |
ctrl);
+ gpio_requestf(cfg->gpio_param, "dio%d", i);
gpio_direction_input(cfg->gpio_param);
} else if (hwconfig_subarg_cmp("dio2", "mode", "pwm") &&
cfg->pwm_padmux) {
@@ -1274,6 +1309,7 @@ int imx6_pcie_toggle_reset(void)
{
if (board_type < GW_UNKNOWN) {
uint pin = gpio_cfg[board_type].pcie_rst;
+ gpio_request(pin, "pci_rst#");
gpio_direction_output(pin, 0);
mdelay(50);
gpio_direction_output(pin, 1);
@@ -1343,6 +1379,7 @@ void get_board_serial(struct tag_serialnr *serialnr)
int board_early_init_f(void)
{
setup_iomux_uart();
+
gpio_direction_output(GP_USB_OTG_PWR, 0); /* OTG power off */
#if defined(CONFIG_VIDEO_IPUV3)
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