1 /* SPDX-License-Identifier: GPL-2.0 */
5 /* Alternate functions */
21 #define INVERTCLK (1 << 22)
22 #define CLKNOTDATA (1 << 21)
23 #define DOUBLE_EDGE (1 << 20)
24 #define CLK_A (0 << 18)
25 #define CLK_B (1 << 18)
26 #define CLK_C (2 << 18)
27 #define CLK_D (3 << 18)
29 /* User-frendly defines for Pin Direction */
30 /* oe = 0, pu = 0, od = 0 */
32 /* oe = 0, pu = 1, od = 0 */
34 /* oe = 1, pu = 0, od = 0 */
36 /* oe = 1, pu = 0, od = 1 */
37 #define BIDIR (OE | OD)
38 /* oe = 1, pu = 1, od = 1 */
39 #define BIDIR_PU (OE | PU | OD)
44 * Bypass retime with optional delay parameter
48 * R0, R1, R0D, R1D modes
49 * single-edge data non inverted clock, retime data with clk
51 #define SE_NICLK_IO (RT)
53 * RIV0, RIV1, RIV0D, RIV1D modes
54 * single-edge data inverted clock, retime data with clk
56 #define SE_ICLK_IO (RT | INVERTCLK)
58 * R0E, R1E, R0ED, R1ED modes
59 * double-edge data, retime data with clk
61 #define DE_IO (RT | DOUBLE_EDGE)
63 * CIV0, CIV1 modes with inverted clock
64 * Retiming the clk pins will park clock & reduce the noise within the core.
66 #define ICLK (RT | CLKNOTDATA | INVERTCLK)
68 * CLK0, CLK1 modes with non-inverted clock
69 * Retiming the clk pins will park clock & reduce the noise within the core.
71 #define NICLK (RT | CLKNOTDATA)
72 #endif /* _ST_PINCFG_H_ */