Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arm / imx-common / iomux-v3.c

diff --git a/qemu/roms/u-boot/arch/arm/imx-common/iomux-v3.c b/qemu/roms/u-boot/arch/arm/imx-common/iomux-v3.c
new file mode 100644 (file)
index 0000000..b59b802
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/imx-common/iomux-v3.c
@@ -0,0 +1,57 @@
+/*
+ * Based on the iomux-v3.c from Linux kernel:
+ * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
+ * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
+ *                       <armlinux@phytec.de>
+ *
+ * Copyright (C) 2004-2011 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/imx-common/iomux-v3.h>
+
+static void *base = (void *)IOMUXC_BASE_ADDR;
+
+/*
+ * configures a single pad in the iomuxer
+ */
+void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad)
+{
+       u32 mux_ctrl_ofs = (pad & MUX_CTRL_OFS_MASK) >> MUX_CTRL_OFS_SHIFT;
+       u32 mux_mode = (pad & MUX_MODE_MASK) >> MUX_MODE_SHIFT;
+       u32 sel_input_ofs =
+               (pad & MUX_SEL_INPUT_OFS_MASK) >> MUX_SEL_INPUT_OFS_SHIFT;
+       u32 sel_input =
+               (pad & MUX_SEL_INPUT_MASK) >> MUX_SEL_INPUT_SHIFT;
+       u32 pad_ctrl_ofs =
+               (pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT;
+       u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT;
+
+       if (mux_ctrl_ofs)
+               __raw_writel(mux_mode, base + mux_ctrl_ofs);
+
+       if (sel_input_ofs)
+               __raw_writel(sel_input, base + sel_input_ofs);
+
+#ifdef CONFIG_IOMUX_SHARE_CONF_REG
+       if (!(pad_ctrl & NO_PAD_CTRL))
+               __raw_writel((mux_mode << PAD_MUX_MODE_SHIFT) | pad_ctrl,
+                       base + pad_ctrl_ofs);
+#else
+       if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs)
+               __raw_writel(pad_ctrl, base + pad_ctrl_ofs);
+#endif
+}
+
+void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,
+                                     unsigned count)
+{
+       iomux_v3_cfg_t const *p = pad_list;
+       int i;
+
+       for (i = 0; i < count; i++)
+               imx_iomux_v3_setup_pad(*p++);
+}