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authorPushpal Sidhu <psidhu@gateworks.com>2015-04-08 12:55:00 -0700
committerStefano Babic <sbabic@denx.de>2015-04-22 14:39:12 +0200
commite9fc6d137bc302c89a2d9395be1a9a4b05f75a74 (patch)
tree483f43cd8399f56d43095304f2350857adcab58d /board/gateworks
parentee5931d488122f1d4510bf03d37183fabd35fc0d (diff)
imx: ventana: add DT fixup for GW522x to change PCIE_RST# GPIO
The GW522x is functionally the same as a GW52xx except for PCIE_RST# GPIO. Add a DT fixup to change this gpio upon bootup. Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Diffstat (limited to 'board/gateworks')
-rw-r--r--board/gateworks/gw_ventana/gw_ventana.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index b7199f1b42..50a2a9adf0 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -669,6 +669,8 @@ static iomux_v3_cfg_t const gw52xx_gpio_pads[] = {
IOMUX_PADS(PAD_EIM_D31__GPIO3_IO31 | DIO_PAD_CFG),
/* PCI_RST# */
IOMUX_PADS(PAD_ENET_TXD1__GPIO1_IO29 | DIO_PAD_CFG),
+ /* PCI_RST# (GW522x) */
+ IOMUX_PADS(PAD_EIM_D23__GPIO3_IO23 | DIO_PAD_CFG),
/* PCIESKT_WDIS# */
IOMUX_PADS(PAD_GPIO_17__GPIO7_IO12 | DIO_PAD_CFG),
};
@@ -1168,6 +1170,10 @@ static void setup_board_gpio(int board)
}
#if !defined(CONFIG_CMD_PCI)
+ /* GW522x Uses GPIO3_IO23 for PCIE_RST# */
+ if (board_type == GW52xx && info->model[4] == '2')
+ gpio_cfg[board].pcie_rst = IMX_GPIO_NR(3, 23);
+
/* assert PCI_RST# (released by OS when clock is valid) */
gpio_direction_output(gpio_cfg[board].pcie_rst, 0);
#endif
@@ -1656,6 +1662,28 @@ int ft_board_setup(void *blob, bd_t *bd)
fdt_status_disabled(blob, i);
}
+ /* GW522x Uses GPIO3_IO23 instead of GPIO1_IO29 */
+ else if (board_type == GW52xx && info->model[4] == '2') {
+ u32 handle = 0;
+ u32 *range = NULL;
+
+ i = fdt_node_offset_by_compatible(blob, -1, "fsl,imx6q-pcie");
+ if (i)
+ range = (u32 *)fdt_getprop(blob, i, "reset-gpio",
+ NULL);
+
+ if (range) {
+ i = fdt_path_offset(blob,
+ "/soc/aips-bus@02000000/gpio@020a4000");
+ if (i)
+ handle = fdt_get_phandle(blob, i);
+ if (handle) {
+ range[0] = cpu_to_fdt32(handle);
+ range[1] = cpu_to_fdt32(23);
+ }
+ }
+ }
+
/*
* isolate CSI0_DATA_EN for GW551x below revB to work around
* errata causing non functional digital video in (it is not hooked up)