83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2016-2017 Intel Corporation <www.intel.com>
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*/
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#include <asm/arch/pinmux.h>
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#include <asm/io.h>
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#include <common.h>
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#include <fdtdec.h>
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static int do_pinctr_pin(const void *blob, int child, const char *node_name)
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{
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int len;
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fdt_addr_t base_addr;
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fdt_size_t size;
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const u32 *cell;
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u32 offset, value;
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base_addr = fdtdec_get_addr_size(blob, child, "reg", &size);
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if (base_addr != FDT_ADDR_T_NONE) {
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cell = fdt_getprop(blob, child, "pinctrl-single,pins", &len);
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if (!cell || len <= 0)
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return -EFAULT;
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debug("%p %d\n", cell, len);
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for (; len > 0; len -= (2 * sizeof(u32))) {
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offset = fdt32_to_cpu(*cell++);
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value = fdt32_to_cpu(*cell++);
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debug("<0x%x 0x%x>\n", offset, value);
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writel(value, base_addr + offset);
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}
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return 0;
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}
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return -EFAULT;
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}
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static int do_pinctrl_pins(const void *blob, int node, const char *child_name)
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{
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int child, len;
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const char *node_name;
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child = fdt_first_subnode(blob, node);
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if (child < 0)
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return -EINVAL;
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node_name = fdt_get_name(blob, child, &len);
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while (node_name) {
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if (!strcmp(child_name, node_name))
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return do_pinctr_pin(blob, child, node_name);
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child = fdt_next_subnode(blob, child);
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if (child < 0)
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break;
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node_name = fdt_get_name(blob, child, &len);
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}
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return -EFAULT;
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}
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int config_dedicated_pins(const void *blob)
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{
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int node;
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node = fdtdec_next_compatible(blob, 0,
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COMPAT_ALTERA_SOCFPGA_PINCTRL_SINGLE);
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if (node < 0)
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return -EINVAL;
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if (do_pinctrl_pins(blob, node, "dedicated_cfg"))
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return -EFAULT;
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if (do_pinctrl_pins(blob, node, "dedicated"))
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return -EFAULT;
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return 0;
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}
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int config_pins(const void *blob, const char *pin_grp)
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{
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int node;
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node = fdtdec_next_compatible(blob, 0,
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COMPAT_ALTERA_SOCFPGA_PINCTRL_SINGLE);
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if (node < 0)
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return -EINVAL;
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if (do_pinctrl_pins(blob, node, pin_grp))
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return -EFAULT;
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return 0;
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}
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