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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /arch/arm/boot/dts/st/st-pincfg.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/boot/dts/st/st-pincfg.h')
-rw-r--r-- | arch/arm/boot/dts/st/st-pincfg.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/st/st-pincfg.h b/arch/arm/boot/dts/st/st-pincfg.h new file mode 100644 index 0000000000..d805512022 --- /dev/null +++ b/arch/arm/boot/dts/st/st-pincfg.h @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ST_PINCFG_H_ +#define _ST_PINCFG_H_ + +/* Alternate functions */ +#define ALT1 1 +#define ALT2 2 +#define ALT3 3 +#define ALT4 4 +#define ALT5 5 +#define ALT6 6 +#define ALT7 7 + +/* Output enable */ +#define OE (1 << 27) +/* Pull Up */ +#define PU (1 << 26) +/* Open Drain */ +#define OD (1 << 25) +#define RT (1 << 23) +#define INVERTCLK (1 << 22) +#define CLKNOTDATA (1 << 21) +#define DOUBLE_EDGE (1 << 20) +#define CLK_A (0 << 18) +#define CLK_B (1 << 18) +#define CLK_C (2 << 18) +#define CLK_D (3 << 18) + +/* User-frendly defines for Pin Direction */ + /* oe = 0, pu = 0, od = 0 */ +#define IN (0) + /* oe = 0, pu = 1, od = 0 */ +#define IN_PU (PU) + /* oe = 1, pu = 0, od = 0 */ +#define OUT (OE) + /* oe = 1, pu = 0, od = 1 */ +#define BIDIR (OE | OD) + /* oe = 1, pu = 1, od = 1 */ +#define BIDIR_PU (OE | PU | OD) + +/* RETIME_TYPE */ +/* + * B Mode + * Bypass retime with optional delay parameter + */ +#define BYPASS (0) +/* + * R0, R1, R0D, R1D modes + * single-edge data non inverted clock, retime data with clk + */ +#define SE_NICLK_IO (RT) +/* + * RIV0, RIV1, RIV0D, RIV1D modes + * single-edge data inverted clock, retime data with clk + */ +#define SE_ICLK_IO (RT | INVERTCLK) +/* + * R0E, R1E, R0ED, R1ED modes + * double-edge data, retime data with clk + */ +#define DE_IO (RT | DOUBLE_EDGE) +/* + * CIV0, CIV1 modes with inverted clock + * Retiming the clk pins will park clock & reduce the noise within the core. + */ +#define ICLK (RT | CLKNOTDATA | INVERTCLK) +/* + * CLK0, CLK1 modes with non-inverted clock + * Retiming the clk pins will park clock & reduce the noise within the core. + */ +#define NICLK (RT | CLKNOTDATA) +#endif /* _ST_PINCFG_H_ */ |