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https://github.com/brain-hackers/u-boot-brain
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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>
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2010
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* Marvell Semiconductor <www.marvell.com>
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* Written-by: Prafulla Wadaskar <prafulla@marvell.com>,
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <mvmfp.h>
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#include <asm/arch/mfp.h>
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/*
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* mfp_config
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*
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* On most of Marvell SoCs (ex. ARMADA100) there is Multi-Funtion-Pin
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* configuration registers to configure each GPIO/Function pin on the
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* SoC.
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*
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* This function reads the array of values for
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* MFPR_X registers and programms them into respective
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* Multi-Function Pin registers.
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* It supports - Alternate Function Selection programming.
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*
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* Whereas,
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* The Configureation value is constructed using MFP()
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* array consists of 32bit values as defined in MFP(xx,xx..) macro
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*/
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void mfp_config(u32 *mfp_cfgs)
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{
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u32 *p_mfpr = NULL;
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u32 cfg_val, val;
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do {
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cfg_val = *mfp_cfgs++;
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/* exit if End of configuration table detected */
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if (cfg_val == MFP_EOC)
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break;
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p_mfpr = (u32 *)(MV_MFPR_BASE
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+ MFP_REG_GET_OFFSET(cfg_val));
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/* Write a mfg register as per configuration */
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val = 0;
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if (cfg_val & MFP_VALUE_MASK)
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val |= cfg_val & MFP_VALUE_MASK;
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writel(val, p_mfpr);
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} while (1);
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/*
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* perform a read-back of any MFPR register to make sure the
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* previous writings are finished
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*/
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readl(p_mfpr);
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}
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