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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
97 lines
1.9 KiB
C
97 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 <log.h>
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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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