From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/net/ethernet/altera/altera_utils.c | 44 ++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 drivers/net/ethernet/altera/altera_utils.c (limited to 'drivers/net/ethernet/altera/altera_utils.c') diff --git a/drivers/net/ethernet/altera/altera_utils.c b/drivers/net/ethernet/altera/altera_utils.c new file mode 100644 index 000000000..d7eeb1713 --- /dev/null +++ b/drivers/net/ethernet/altera/altera_utils.c @@ -0,0 +1,44 @@ +/* Altera TSE SGDMA and MSGDMA Linux driver + * Copyright (C) 2014 Altera Corporation. All rights reserved + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include "altera_tse.h" +#include "altera_utils.h" + +void tse_set_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask) +{ + u32 value = csrrd32(ioaddr, offs); + value |= bit_mask; + csrwr32(value, ioaddr, offs); +} + +void tse_clear_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask) +{ + u32 value = csrrd32(ioaddr, offs); + value &= ~bit_mask; + csrwr32(value, ioaddr, offs); +} + +int tse_bit_is_set(void __iomem *ioaddr, size_t offs, u32 bit_mask) +{ + u32 value = csrrd32(ioaddr, offs); + return (value & bit_mask) ? 1 : 0; +} + +int tse_bit_is_clear(void __iomem *ioaddr, size_t offs, u32 bit_mask) +{ + u32 value = csrrd32(ioaddr, offs); + return (value & bit_mask) ? 0 : 1; +} -- cgit v1.2.3-54-g00ecf