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| author | Tom Rini <trini@ti.com> | 2013-07-25 08:22:08 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-07-25 08:51:51 -0400 |
| commit | aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c (patch) | |
| tree | 64eaea4d396dce4e0a30bb955b8240d4b199cdca /arch/nds32/include/asm/io.h | |
| parent | 0b17998e509e5614633aee0a3c5d6248f8bc580b (diff) | |
| parent | c54fd3efa497876a33cc3c6e7df514ae53abc729 (diff) | |
| download | u-boot-imx-aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c.zip u-boot-imx-aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c.tar.gz u-boot-imx-aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c.tar.bz2 | |
Merge branch 'master' of git://git.denx.de/u-boot-nds32
Diffstat (limited to 'arch/nds32/include/asm/io.h')
| -rw-r--r-- | arch/nds32/include/asm/io.h | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/arch/nds32/include/asm/io.h b/arch/nds32/include/asm/io.h index 39c3dc8..04708e9 100644 --- a/arch/nds32/include/asm/io.h +++ b/arch/nds32/include/asm/io.h @@ -7,9 +7,7 @@ * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com> * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. + * SPDX-License-Identifier: GPL-2.0 * * Modifications: * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both @@ -184,6 +182,43 @@ static inline unsigned int readl(unsigned int *addr) #define in_8(a) __raw_readb(a) /* + * Clear and set bits in one shot. These macros can be used to clear and + * set multiple bits in a register using a single call. These macros can + * also be used to set a multiple-bit bit pattern using a mask, by + * specifying the mask in the 'clear' parameter and the new bit pattern + * in the 'set' parameter. + */ + +#define clrbits(type, addr, clear) \ + out_##type((addr), in_##type(addr) & ~(clear)) + +#define setbits(type, addr, set) \ + out_##type((addr), in_##type(addr) | (set)) + +#define clrsetbits(type, addr, clear, set) \ + out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) + +#define clrbits_be32(addr, clear) clrbits(be32, addr, clear) +#define setbits_be32(addr, set) setbits(be32, addr, set) +#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) + +#define clrbits_le32(addr, clear) clrbits(le32, addr, clear) +#define setbits_le32(addr, set) setbits(le32, addr, set) +#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) + +#define clrbits_be16(addr, clear) clrbits(be16, addr, clear) +#define setbits_be16(addr, set) setbits(be16, addr, set) +#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) + +#define clrbits_le16(addr, clear) clrbits(le16, addr, clear) +#define setbits_le16(addr, set) setbits(le16, addr, set) +#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) + +#define clrbits_8(addr, clear) clrbits(8, addr, clear) +#define setbits_8(addr, set) setbits(8, addr, set) +#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) + +/* * Now, pick up the machine-defined IO definitions * #include <asm/arch/io.h> */ |