183d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+ 2f517afd5SLaurence Withers /* 3f517afd5SLaurence Withers * GPIO driver for TI DaVinci DA8xx SOCs. 4f517afd5SLaurence Withers * 5f517afd5SLaurence Withers * (C) Copyright 2011 Guralp Systems Ltd. 6f517afd5SLaurence Withers * Laurence Withers <lwithers@guralp.com> 7f517afd5SLaurence Withers */ 8f517afd5SLaurence Withers 9f517afd5SLaurence Withers #include <common.h> 10*8e51c0f2SAdam Ford #include <dm.h> 11*8e51c0f2SAdam Ford #include <fdtdec.h> 12f517afd5SLaurence Withers #include <asm/io.h> 13f517afd5SLaurence Withers #include <asm/gpio.h> 14f517afd5SLaurence Withers #include <asm/arch/hardware.h> 15f517afd5SLaurence Withers #include <asm/arch/davinci_misc.h> 16f517afd5SLaurence Withers 17*8e51c0f2SAdam Ford #ifndef CONFIG_DM_GPIO 18f517afd5SLaurence Withers static struct gpio_registry { 19f517afd5SLaurence Withers int is_registered; 20f517afd5SLaurence Withers char name[GPIO_NAME_SIZE]; 21f517afd5SLaurence Withers } gpio_registry[MAX_NUM_GPIOS]; 22f517afd5SLaurence Withers 2303414ac4SHolger Hans Peter Freyther #if defined(CONFIG_SOC_DA8XX) 24f517afd5SLaurence Withers #define pinmux(x) (&davinci_syscfg_regs->pinmux[x]) 25f517afd5SLaurence Withers 26b9f56698STomas Novotny #if defined(CONFIG_SOC_DA8XX) && !defined(CONFIG_SOC_DA850) 27b9f56698STomas Novotny static const struct pinmux_config gpio_pinmux[] = { 28b9f56698STomas Novotny { pinmux(13), 8, 6 }, /* GP0[0] */ 29b9f56698STomas Novotny { pinmux(13), 8, 7 }, 30b9f56698STomas Novotny { pinmux(14), 8, 0 }, 31b9f56698STomas Novotny { pinmux(14), 8, 1 }, 32b9f56698STomas Novotny { pinmux(14), 8, 2 }, 33b9f56698STomas Novotny { pinmux(14), 8, 3 }, 34b9f56698STomas Novotny { pinmux(14), 8, 4 }, 35b9f56698STomas Novotny { pinmux(14), 8, 5 }, 36b9f56698STomas Novotny { pinmux(14), 8, 6 }, 37b9f56698STomas Novotny { pinmux(14), 8, 7 }, 38b9f56698STomas Novotny { pinmux(15), 8, 0 }, 39b9f56698STomas Novotny { pinmux(15), 8, 1 }, 40b9f56698STomas Novotny { pinmux(15), 8, 2 }, 41b9f56698STomas Novotny { pinmux(15), 8, 3 }, 42b9f56698STomas Novotny { pinmux(15), 8, 4 }, 43b9f56698STomas Novotny { pinmux(15), 8, 5 }, 44b9f56698STomas Novotny { pinmux(15), 8, 6 }, /* GP1[0] */ 45b9f56698STomas Novotny { pinmux(15), 8, 7 }, 46b9f56698STomas Novotny { pinmux(16), 8, 0 }, 47b9f56698STomas Novotny { pinmux(16), 8, 1 }, 48b9f56698STomas Novotny { pinmux(16), 8, 2 }, 49b9f56698STomas Novotny { pinmux(16), 8, 3 }, 50b9f56698STomas Novotny { pinmux(16), 8, 4 }, 51b9f56698STomas Novotny { pinmux(16), 8, 5 }, 52b9f56698STomas Novotny { pinmux(16), 8, 6 }, 53b9f56698STomas Novotny { pinmux(16), 8, 7 }, 54b9f56698STomas Novotny { pinmux(17), 8, 0 }, 55b9f56698STomas Novotny { pinmux(17), 8, 1 }, 56b9f56698STomas Novotny { pinmux(17), 8, 2 }, 57b9f56698STomas Novotny { pinmux(17), 8, 3 }, 58b9f56698STomas Novotny { pinmux(17), 8, 4 }, 59b9f56698STomas Novotny { pinmux(17), 8, 5 }, 60b9f56698STomas Novotny { pinmux(17), 8, 6 }, /* GP2[0] */ 61b9f56698STomas Novotny { pinmux(17), 8, 7 }, 62b9f56698STomas Novotny { pinmux(18), 8, 0 }, 63b9f56698STomas Novotny { pinmux(18), 8, 1 }, 64b9f56698STomas Novotny { pinmux(18), 8, 2 }, 65b9f56698STomas Novotny { pinmux(18), 8, 3 }, 66b9f56698STomas Novotny { pinmux(18), 8, 4 }, 67b9f56698STomas Novotny { pinmux(18), 8, 5 }, 68b9f56698STomas Novotny { pinmux(18), 8, 6 }, 69b9f56698STomas Novotny { pinmux(18), 8, 7 }, 70b9f56698STomas Novotny { pinmux(19), 8, 0 }, 71b9f56698STomas Novotny { pinmux(9), 8, 2 }, 72b9f56698STomas Novotny { pinmux(9), 8, 3 }, 73b9f56698STomas Novotny { pinmux(9), 8, 4 }, 74b9f56698STomas Novotny { pinmux(9), 8, 5 }, 75b9f56698STomas Novotny { pinmux(9), 8, 6 }, 76b9f56698STomas Novotny { pinmux(10), 8, 1 }, /* GP3[0] */ 77b9f56698STomas Novotny { pinmux(10), 8, 2 }, 78b9f56698STomas Novotny { pinmux(10), 8, 3 }, 79b9f56698STomas Novotny { pinmux(10), 8, 4 }, 80b9f56698STomas Novotny { pinmux(10), 8, 5 }, 81b9f56698STomas Novotny { pinmux(10), 8, 6 }, 82b9f56698STomas Novotny { pinmux(10), 8, 7 }, 83b9f56698STomas Novotny { pinmux(11), 8, 0 }, 84b9f56698STomas Novotny { pinmux(11), 8, 1 }, 85b9f56698STomas Novotny { pinmux(11), 8, 2 }, 86b9f56698STomas Novotny { pinmux(11), 8, 3 }, 87b9f56698STomas Novotny { pinmux(11), 8, 4 }, 88b9f56698STomas Novotny { pinmux(9), 8, 7 }, 89b9f56698STomas Novotny { pinmux(2), 8, 6 }, 90b9f56698STomas Novotny { pinmux(11), 8, 5 }, 91b9f56698STomas Novotny { pinmux(11), 8, 6 }, 92b9f56698STomas Novotny { pinmux(12), 8, 4 }, /* GP4[0] */ 93b9f56698STomas Novotny { pinmux(12), 8, 5 }, 94b9f56698STomas Novotny { pinmux(12), 8, 6 }, 95b9f56698STomas Novotny { pinmux(12), 8, 7 }, 96b9f56698STomas Novotny { pinmux(13), 8, 0 }, 97b9f56698STomas Novotny { pinmux(13), 8, 1 }, 98b9f56698STomas Novotny { pinmux(13), 8, 2 }, 99b9f56698STomas Novotny { pinmux(13), 8, 3 }, 100b9f56698STomas Novotny { pinmux(13), 8, 4 }, 101b9f56698STomas Novotny { pinmux(13), 8, 5 }, 102b9f56698STomas Novotny { pinmux(11), 8, 7 }, 103b9f56698STomas Novotny { pinmux(12), 8, 0 }, 104b9f56698STomas Novotny { pinmux(12), 8, 1 }, 105b9f56698STomas Novotny { pinmux(12), 8, 2 }, 106b9f56698STomas Novotny { pinmux(12), 8, 3 }, 107b9f56698STomas Novotny { pinmux(9), 8, 1 }, 108b9f56698STomas Novotny { pinmux(7), 8, 3 }, /* GP5[0] */ 109b9f56698STomas Novotny { pinmux(7), 8, 4 }, 110b9f56698STomas Novotny { pinmux(7), 8, 5 }, 111b9f56698STomas Novotny { pinmux(7), 8, 6 }, 112b9f56698STomas Novotny { pinmux(7), 8, 7 }, 113b9f56698STomas Novotny { pinmux(8), 8, 0 }, 114b9f56698STomas Novotny { pinmux(8), 8, 1 }, 115b9f56698STomas Novotny { pinmux(8), 8, 2 }, 116b9f56698STomas Novotny { pinmux(8), 8, 3 }, 117b9f56698STomas Novotny { pinmux(8), 8, 4 }, 118b9f56698STomas Novotny { pinmux(8), 8, 5 }, 119b9f56698STomas Novotny { pinmux(8), 8, 6 }, 120b9f56698STomas Novotny { pinmux(8), 8, 7 }, 121b9f56698STomas Novotny { pinmux(9), 8, 0 }, 122b9f56698STomas Novotny { pinmux(7), 8, 1 }, 123b9f56698STomas Novotny { pinmux(7), 8, 2 }, 124b9f56698STomas Novotny { pinmux(5), 8, 1 }, /* GP6[0] */ 125b9f56698STomas Novotny { pinmux(5), 8, 2 }, 126b9f56698STomas Novotny { pinmux(5), 8, 3 }, 127b9f56698STomas Novotny { pinmux(5), 8, 4 }, 128b9f56698STomas Novotny { pinmux(5), 8, 5 }, 129b9f56698STomas Novotny { pinmux(5), 8, 6 }, 130b9f56698STomas Novotny { pinmux(5), 8, 7 }, 131b9f56698STomas Novotny { pinmux(6), 8, 0 }, 132b9f56698STomas Novotny { pinmux(6), 8, 1 }, 133b9f56698STomas Novotny { pinmux(6), 8, 2 }, 134b9f56698STomas Novotny { pinmux(6), 8, 3 }, 135b9f56698STomas Novotny { pinmux(6), 8, 4 }, 136b9f56698STomas Novotny { pinmux(6), 8, 5 }, 137b9f56698STomas Novotny { pinmux(6), 8, 6 }, 138b9f56698STomas Novotny { pinmux(6), 8, 7 }, 139b9f56698STomas Novotny { pinmux(7), 8, 0 }, 140b9f56698STomas Novotny { pinmux(1), 8, 0 }, /* GP7[0] */ 141b9f56698STomas Novotny { pinmux(1), 8, 1 }, 142b9f56698STomas Novotny { pinmux(1), 8, 2 }, 143b9f56698STomas Novotny { pinmux(1), 8, 3 }, 144b9f56698STomas Novotny { pinmux(1), 8, 4 }, 145b9f56698STomas Novotny { pinmux(1), 8, 5 }, 146b9f56698STomas Novotny { pinmux(1), 8, 6 }, 147b9f56698STomas Novotny { pinmux(1), 8, 7 }, 148b9f56698STomas Novotny { pinmux(2), 8, 0 }, 149b9f56698STomas Novotny { pinmux(2), 8, 1 }, 150b9f56698STomas Novotny { pinmux(2), 8, 2 }, 151b9f56698STomas Novotny { pinmux(2), 8, 3 }, 152b9f56698STomas Novotny { pinmux(2), 8, 4 }, 153b9f56698STomas Novotny { pinmux(2), 8, 5 }, 154b9f56698STomas Novotny { pinmux(0), 1, 0 }, 155b9f56698STomas Novotny { pinmux(0), 1, 1 }, 156b9f56698STomas Novotny }; 15776b40ab4STom Rini #else /* CONFIG_SOC_DA8XX && CONFIG_SOC_DA850 */ 158f517afd5SLaurence Withers static const struct pinmux_config gpio_pinmux[] = { 159f517afd5SLaurence Withers { pinmux(1), 8, 7 }, /* GP0[0] */ 160f517afd5SLaurence Withers { pinmux(1), 8, 6 }, 161f517afd5SLaurence Withers { pinmux(1), 8, 5 }, 162f517afd5SLaurence Withers { pinmux(1), 8, 4 }, 163f517afd5SLaurence Withers { pinmux(1), 8, 3 }, 164f517afd5SLaurence Withers { pinmux(1), 8, 2 }, 165f517afd5SLaurence Withers { pinmux(1), 8, 1 }, 166f517afd5SLaurence Withers { pinmux(1), 8, 0 }, 167f517afd5SLaurence Withers { pinmux(0), 8, 7 }, 168f517afd5SLaurence Withers { pinmux(0), 8, 6 }, 169f517afd5SLaurence Withers { pinmux(0), 8, 5 }, 170f517afd5SLaurence Withers { pinmux(0), 8, 4 }, 171f517afd5SLaurence Withers { pinmux(0), 8, 3 }, 172f517afd5SLaurence Withers { pinmux(0), 8, 2 }, 173f517afd5SLaurence Withers { pinmux(0), 8, 1 }, 174f517afd5SLaurence Withers { pinmux(0), 8, 0 }, 175f517afd5SLaurence Withers { pinmux(4), 8, 7 }, /* GP1[0] */ 176f517afd5SLaurence Withers { pinmux(4), 8, 6 }, 177f517afd5SLaurence Withers { pinmux(4), 8, 5 }, 178f517afd5SLaurence Withers { pinmux(4), 8, 4 }, 179f517afd5SLaurence Withers { pinmux(4), 8, 3 }, 180f517afd5SLaurence Withers { pinmux(4), 8, 2 }, 181f517afd5SLaurence Withers { pinmux(4), 4, 1 }, 182f517afd5SLaurence Withers { pinmux(4), 4, 0 }, 183f517afd5SLaurence Withers { pinmux(3), 4, 0 }, 184f517afd5SLaurence Withers { pinmux(2), 4, 6 }, 185f517afd5SLaurence Withers { pinmux(2), 4, 5 }, 186f517afd5SLaurence Withers { pinmux(2), 4, 4 }, 187f517afd5SLaurence Withers { pinmux(2), 4, 3 }, 188f517afd5SLaurence Withers { pinmux(2), 4, 2 }, 189f517afd5SLaurence Withers { pinmux(2), 4, 1 }, 190f517afd5SLaurence Withers { pinmux(2), 8, 0 }, 191f517afd5SLaurence Withers { pinmux(6), 8, 7 }, /* GP2[0] */ 192f517afd5SLaurence Withers { pinmux(6), 8, 6 }, 193f517afd5SLaurence Withers { pinmux(6), 8, 5 }, 194f517afd5SLaurence Withers { pinmux(6), 8, 4 }, 195f517afd5SLaurence Withers { pinmux(6), 8, 3 }, 196f517afd5SLaurence Withers { pinmux(6), 8, 2 }, 197f517afd5SLaurence Withers { pinmux(6), 8, 1 }, 198f517afd5SLaurence Withers { pinmux(6), 8, 0 }, 199f517afd5SLaurence Withers { pinmux(5), 8, 7 }, 200f517afd5SLaurence Withers { pinmux(5), 8, 6 }, 201f517afd5SLaurence Withers { pinmux(5), 8, 5 }, 202f517afd5SLaurence Withers { pinmux(5), 8, 4 }, 203f517afd5SLaurence Withers { pinmux(5), 8, 3 }, 204f517afd5SLaurence Withers { pinmux(5), 8, 2 }, 205f517afd5SLaurence Withers { pinmux(5), 8, 1 }, 206f517afd5SLaurence Withers { pinmux(5), 8, 0 }, 207f517afd5SLaurence Withers { pinmux(8), 8, 7 }, /* GP3[0] */ 208f517afd5SLaurence Withers { pinmux(8), 8, 6 }, 209f517afd5SLaurence Withers { pinmux(8), 8, 5 }, 210f517afd5SLaurence Withers { pinmux(8), 8, 4 }, 211f517afd5SLaurence Withers { pinmux(8), 8, 3 }, 212f517afd5SLaurence Withers { pinmux(8), 8, 2 }, 213f517afd5SLaurence Withers { pinmux(8), 8, 1 }, 214f517afd5SLaurence Withers { pinmux(8), 8, 0 }, 215f517afd5SLaurence Withers { pinmux(7), 8, 7 }, 216f517afd5SLaurence Withers { pinmux(7), 8, 6 }, 217f517afd5SLaurence Withers { pinmux(7), 8, 5 }, 218f517afd5SLaurence Withers { pinmux(7), 8, 4 }, 219f517afd5SLaurence Withers { pinmux(7), 8, 3 }, 220f517afd5SLaurence Withers { pinmux(7), 8, 2 }, 221f517afd5SLaurence Withers { pinmux(7), 8, 1 }, 222f517afd5SLaurence Withers { pinmux(7), 8, 0 }, 223f517afd5SLaurence Withers { pinmux(10), 8, 7 }, /* GP4[0] */ 224f517afd5SLaurence Withers { pinmux(10), 8, 6 }, 225f517afd5SLaurence Withers { pinmux(10), 8, 5 }, 226f517afd5SLaurence Withers { pinmux(10), 8, 4 }, 227f517afd5SLaurence Withers { pinmux(10), 8, 3 }, 228f517afd5SLaurence Withers { pinmux(10), 8, 2 }, 229f517afd5SLaurence Withers { pinmux(10), 8, 1 }, 230f517afd5SLaurence Withers { pinmux(10), 8, 0 }, 231f517afd5SLaurence Withers { pinmux(9), 8, 7 }, 232f517afd5SLaurence Withers { pinmux(9), 8, 6 }, 233f517afd5SLaurence Withers { pinmux(9), 8, 5 }, 234f517afd5SLaurence Withers { pinmux(9), 8, 4 }, 235f517afd5SLaurence Withers { pinmux(9), 8, 3 }, 236f517afd5SLaurence Withers { pinmux(9), 8, 2 }, 237f517afd5SLaurence Withers { pinmux(9), 8, 1 }, 238f517afd5SLaurence Withers { pinmux(9), 8, 0 }, 239f517afd5SLaurence Withers { pinmux(12), 8, 7 }, /* GP5[0] */ 240f517afd5SLaurence Withers { pinmux(12), 8, 6 }, 241f517afd5SLaurence Withers { pinmux(12), 8, 5 }, 242f517afd5SLaurence Withers { pinmux(12), 8, 4 }, 243f517afd5SLaurence Withers { pinmux(12), 8, 3 }, 244f517afd5SLaurence Withers { pinmux(12), 8, 2 }, 245f517afd5SLaurence Withers { pinmux(12), 8, 1 }, 246f517afd5SLaurence Withers { pinmux(12), 8, 0 }, 247f517afd5SLaurence Withers { pinmux(11), 8, 7 }, 248f517afd5SLaurence Withers { pinmux(11), 8, 6 }, 249f517afd5SLaurence Withers { pinmux(11), 8, 5 }, 250f517afd5SLaurence Withers { pinmux(11), 8, 4 }, 251f517afd5SLaurence Withers { pinmux(11), 8, 3 }, 252f517afd5SLaurence Withers { pinmux(11), 8, 2 }, 253f517afd5SLaurence Withers { pinmux(11), 8, 1 }, 254f517afd5SLaurence Withers { pinmux(11), 8, 0 }, 255f517afd5SLaurence Withers { pinmux(19), 8, 6 }, /* GP6[0] */ 256f517afd5SLaurence Withers { pinmux(19), 8, 5 }, 257f517afd5SLaurence Withers { pinmux(19), 8, 4 }, 258f517afd5SLaurence Withers { pinmux(19), 8, 3 }, 259f517afd5SLaurence Withers { pinmux(19), 8, 2 }, 260f517afd5SLaurence Withers { pinmux(16), 8, 1 }, 261f517afd5SLaurence Withers { pinmux(14), 8, 1 }, 262f517afd5SLaurence Withers { pinmux(14), 8, 0 }, 263f517afd5SLaurence Withers { pinmux(13), 8, 7 }, 264f517afd5SLaurence Withers { pinmux(13), 8, 6 }, 265f517afd5SLaurence Withers { pinmux(13), 8, 5 }, 266f517afd5SLaurence Withers { pinmux(13), 8, 4 }, 267f517afd5SLaurence Withers { pinmux(13), 8, 3 }, 268f517afd5SLaurence Withers { pinmux(13), 8, 2 }, 269f517afd5SLaurence Withers { pinmux(13), 8, 1 }, 270f517afd5SLaurence Withers { pinmux(13), 8, 0 }, 271f517afd5SLaurence Withers { pinmux(18), 8, 1 }, /* GP7[0] */ 272f517afd5SLaurence Withers { pinmux(18), 8, 0 }, 273f517afd5SLaurence Withers { pinmux(17), 8, 7 }, 274f517afd5SLaurence Withers { pinmux(17), 8, 6 }, 275f517afd5SLaurence Withers { pinmux(17), 8, 5 }, 276f517afd5SLaurence Withers { pinmux(17), 8, 4 }, 277f517afd5SLaurence Withers { pinmux(17), 8, 3 }, 278f517afd5SLaurence Withers { pinmux(17), 8, 2 }, 279f517afd5SLaurence Withers { pinmux(17), 8, 1 }, 280f517afd5SLaurence Withers { pinmux(17), 8, 0 }, 281f517afd5SLaurence Withers { pinmux(16), 8, 7 }, 282f517afd5SLaurence Withers { pinmux(16), 8, 6 }, 283f517afd5SLaurence Withers { pinmux(16), 8, 5 }, 284f517afd5SLaurence Withers { pinmux(16), 8, 4 }, 285f517afd5SLaurence Withers { pinmux(16), 8, 3 }, 286f517afd5SLaurence Withers { pinmux(16), 8, 2 }, 287f517afd5SLaurence Withers { pinmux(19), 8, 0 }, /* GP8[0] */ 288f517afd5SLaurence Withers { pinmux(3), 4, 7 }, 289f517afd5SLaurence Withers { pinmux(3), 4, 6 }, 290f517afd5SLaurence Withers { pinmux(3), 4, 5 }, 291f517afd5SLaurence Withers { pinmux(3), 4, 4 }, 292f517afd5SLaurence Withers { pinmux(3), 4, 3 }, 293f517afd5SLaurence Withers { pinmux(3), 4, 2 }, 294f517afd5SLaurence Withers { pinmux(2), 4, 7 }, 295f517afd5SLaurence Withers { pinmux(19), 8, 1 }, 296f517afd5SLaurence Withers { pinmux(19), 8, 0 }, 297f517afd5SLaurence Withers { pinmux(18), 8, 7 }, 298f517afd5SLaurence Withers { pinmux(18), 8, 6 }, 299f517afd5SLaurence Withers { pinmux(18), 8, 5 }, 300f517afd5SLaurence Withers { pinmux(18), 8, 4 }, 301f517afd5SLaurence Withers { pinmux(18), 8, 3 }, 302f517afd5SLaurence Withers { pinmux(18), 8, 2 }, 303f517afd5SLaurence Withers }; 30476b40ab4STom Rini #endif /* CONFIG_SOC_DA8XX && !CONFIG_SOC_DA850 */ 30576b40ab4STom Rini #else /* !CONFIG_SOC_DA8XX */ 30603414ac4SHolger Hans Peter Freyther #define davinci_configure_pin_mux(a, b) 30776b40ab4STom Rini #endif /* CONFIG_SOC_DA8XX */ 308f517afd5SLaurence Withers 309*8e51c0f2SAdam Ford int gpio_request(unsigned int gpio, const char *label) 310f517afd5SLaurence Withers { 311365d6070SJoe Hershberger if (gpio >= MAX_NUM_GPIOS) 312f517afd5SLaurence Withers return -1; 313f517afd5SLaurence Withers 314365d6070SJoe Hershberger if (gpio_registry[gpio].is_registered) 315f517afd5SLaurence Withers return -1; 316f517afd5SLaurence Withers 317365d6070SJoe Hershberger gpio_registry[gpio].is_registered = 1; 318365d6070SJoe Hershberger strncpy(gpio_registry[gpio].name, label, GPIO_NAME_SIZE); 319365d6070SJoe Hershberger gpio_registry[gpio].name[GPIO_NAME_SIZE - 1] = 0; 320f517afd5SLaurence Withers 321365d6070SJoe Hershberger davinci_configure_pin_mux(&gpio_pinmux[gpio], 1); 322f517afd5SLaurence Withers 323f517afd5SLaurence Withers return 0; 324f517afd5SLaurence Withers } 325f517afd5SLaurence Withers 326*8e51c0f2SAdam Ford int gpio_free(unsigned int gpio) 327f517afd5SLaurence Withers { 328365d6070SJoe Hershberger if (gpio >= MAX_NUM_GPIOS) 329365d6070SJoe Hershberger return -1; 330365d6070SJoe Hershberger 331365d6070SJoe Hershberger if (!gpio_registry[gpio].is_registered) 332365d6070SJoe Hershberger return -1; 333365d6070SJoe Hershberger 334365d6070SJoe Hershberger gpio_registry[gpio].is_registered = 0; 335365d6070SJoe Hershberger gpio_registry[gpio].name[0] = '\0'; 336365d6070SJoe Hershberger /* Do not configure as input or change pin mux here */ 337365d6070SJoe Hershberger return 0; 338f517afd5SLaurence Withers } 339*8e51c0f2SAdam Ford #endif 340f517afd5SLaurence Withers 341*8e51c0f2SAdam Ford static int _gpio_direction_output(struct davinci_gpio *bank, unsigned int gpio, int value) 342f517afd5SLaurence Withers { 343365d6070SJoe Hershberger clrbits_le32(&bank->dir, 1U << GPIO_BIT(gpio)); 344365d6070SJoe Hershberger gpio_set_value(gpio, value); 345f517afd5SLaurence Withers return 0; 346f517afd5SLaurence Withers } 347f517afd5SLaurence Withers 348*8e51c0f2SAdam Ford static int _gpio_direction_input(struct davinci_gpio *bank, unsigned int gpio) 349f517afd5SLaurence Withers { 350*8e51c0f2SAdam Ford setbits_le32(&bank->dir, 1U << GPIO_BIT(gpio)); 351*8e51c0f2SAdam Ford return 0; 352*8e51c0f2SAdam Ford } 353f517afd5SLaurence Withers 354*8e51c0f2SAdam Ford static int _gpio_get_value(struct davinci_gpio *bank, unsigned int gpio) 355*8e51c0f2SAdam Ford { 356*8e51c0f2SAdam Ford unsigned int ip; 357365d6070SJoe Hershberger ip = in_le32(&bank->in_data) & (1U << GPIO_BIT(gpio)); 358f517afd5SLaurence Withers return ip ? 1 : 0; 359f517afd5SLaurence Withers } 360f517afd5SLaurence Withers 361*8e51c0f2SAdam Ford static int _gpio_set_value(struct davinci_gpio *bank, unsigned int gpio, int value) 362f517afd5SLaurence Withers { 363f517afd5SLaurence Withers if (value) 364365d6070SJoe Hershberger bank->set_data = 1U << GPIO_BIT(gpio); 365f517afd5SLaurence Withers else 366365d6070SJoe Hershberger bank->clr_data = 1U << GPIO_BIT(gpio); 367365d6070SJoe Hershberger 368365d6070SJoe Hershberger return 0; 369f517afd5SLaurence Withers } 370f517afd5SLaurence Withers 371*8e51c0f2SAdam Ford static int _gpio_get_dir(struct davinci_gpio *bank, unsigned int gpio) 372*8e51c0f2SAdam Ford { 373*8e51c0f2SAdam Ford return in_le32(&bank->dir) & (1U << GPIO_BIT(gpio)); 374*8e51c0f2SAdam Ford } 375*8e51c0f2SAdam Ford 376*8e51c0f2SAdam Ford #ifndef CONFIG_DM_GPIO 377*8e51c0f2SAdam Ford 378f517afd5SLaurence Withers void gpio_info(void) 379f517afd5SLaurence Withers { 380*8e51c0f2SAdam Ford unsigned int gpio, dir, val; 381f517afd5SLaurence Withers struct davinci_gpio *bank; 382f517afd5SLaurence Withers 383365d6070SJoe Hershberger for (gpio = 0; gpio < MAX_NUM_GPIOS; ++gpio) { 384365d6070SJoe Hershberger bank = GPIO_BANK(gpio); 385*8e51c0f2SAdam Ford dir = _gpio_get_dir(bank, gpio); 386365d6070SJoe Hershberger val = gpio_get_value(gpio); 387f517afd5SLaurence Withers 388f517afd5SLaurence Withers printf("% 4d: %s: %d [%c] %s\n", 389365d6070SJoe Hershberger gpio, dir ? " in" : "out", val, 390365d6070SJoe Hershberger gpio_registry[gpio].is_registered ? 'x' : ' ', 391365d6070SJoe Hershberger gpio_registry[gpio].name); 392f517afd5SLaurence Withers } 393f517afd5SLaurence Withers } 394*8e51c0f2SAdam Ford 395*8e51c0f2SAdam Ford int gpio_direction_input(unsigned int gpio) 396*8e51c0f2SAdam Ford { 397*8e51c0f2SAdam Ford struct davinci_gpio *bank; 398*8e51c0f2SAdam Ford 399*8e51c0f2SAdam Ford bank = GPIO_BANK(gpio); 400*8e51c0f2SAdam Ford return _gpio_direction_input(bank, gpio); 401*8e51c0f2SAdam Ford } 402*8e51c0f2SAdam Ford 403*8e51c0f2SAdam Ford int gpio_direction_output(unsigned int gpio, int value) 404*8e51c0f2SAdam Ford { 405*8e51c0f2SAdam Ford struct davinci_gpio *bank; 406*8e51c0f2SAdam Ford 407*8e51c0f2SAdam Ford bank = GPIO_BANK(gpio); 408*8e51c0f2SAdam Ford return _gpio_direction_output(bank, gpio, value); 409*8e51c0f2SAdam Ford } 410*8e51c0f2SAdam Ford 411*8e51c0f2SAdam Ford int gpio_get_value(unsigned int gpio) 412*8e51c0f2SAdam Ford { 413*8e51c0f2SAdam Ford struct davinci_gpio *bank; 414*8e51c0f2SAdam Ford 415*8e51c0f2SAdam Ford bank = GPIO_BANK(gpio); 416*8e51c0f2SAdam Ford return _gpio_get_value(bank, gpio); 417*8e51c0f2SAdam Ford } 418*8e51c0f2SAdam Ford 419*8e51c0f2SAdam Ford int gpio_set_value(unsigned int gpio, int value) 420*8e51c0f2SAdam Ford { 421*8e51c0f2SAdam Ford struct davinci_gpio *bank; 422*8e51c0f2SAdam Ford 423*8e51c0f2SAdam Ford bank = GPIO_BANK(gpio); 424*8e51c0f2SAdam Ford return _gpio_set_value(bank, gpio, value); 425*8e51c0f2SAdam Ford } 426*8e51c0f2SAdam Ford 427*8e51c0f2SAdam Ford #else /* CONFIG_DM_GPIO */ 428*8e51c0f2SAdam Ford 429*8e51c0f2SAdam Ford static struct davinci_gpio *davinci_get_gpio_bank(struct udevice *dev, unsigned int offset) 430*8e51c0f2SAdam Ford { 431*8e51c0f2SAdam Ford struct davinci_gpio_bank *bank = dev_get_priv(dev); 432*8e51c0f2SAdam Ford 433*8e51c0f2SAdam Ford /* The device tree is not broken into banks but the infrastructure is 434*8e51c0f2SAdam Ford * expecting it this way, so we'll first include the 0x10 offset, then 435*8e51c0f2SAdam Ford * calculate the bank manually based on the offset. 436*8e51c0f2SAdam Ford */ 437*8e51c0f2SAdam Ford 438*8e51c0f2SAdam Ford return ((struct davinci_gpio *)bank->base) + 0x10 + (offset >> 5); 439*8e51c0f2SAdam Ford } 440*8e51c0f2SAdam Ford 441*8e51c0f2SAdam Ford static int davinci_gpio_direction_input(struct udevice *dev, unsigned int offset) 442*8e51c0f2SAdam Ford { 443*8e51c0f2SAdam Ford struct davinci_gpio *base = davinci_get_gpio_bank(dev, offset); 444*8e51c0f2SAdam Ford 445*8e51c0f2SAdam Ford _gpio_direction_input(base, offset); 446*8e51c0f2SAdam Ford return 0; 447*8e51c0f2SAdam Ford } 448*8e51c0f2SAdam Ford 449*8e51c0f2SAdam Ford static int davinci_gpio_direction_output(struct udevice *dev, unsigned int offset, 450*8e51c0f2SAdam Ford int value) 451*8e51c0f2SAdam Ford { 452*8e51c0f2SAdam Ford struct davinci_gpio *base = davinci_get_gpio_bank(dev, offset); 453*8e51c0f2SAdam Ford 454*8e51c0f2SAdam Ford _gpio_direction_output(base, offset, value); 455*8e51c0f2SAdam Ford return 0; 456*8e51c0f2SAdam Ford } 457*8e51c0f2SAdam Ford 458*8e51c0f2SAdam Ford static int davinci_gpio_get_value(struct udevice *dev, unsigned int offset) 459*8e51c0f2SAdam Ford { 460*8e51c0f2SAdam Ford struct davinci_gpio *base = davinci_get_gpio_bank(dev, offset); 461*8e51c0f2SAdam Ford 462*8e51c0f2SAdam Ford return _gpio_get_value(base, offset); 463*8e51c0f2SAdam Ford } 464*8e51c0f2SAdam Ford 465*8e51c0f2SAdam Ford static int davinci_gpio_set_value(struct udevice *dev, unsigned int offset, 466*8e51c0f2SAdam Ford int value) 467*8e51c0f2SAdam Ford { 468*8e51c0f2SAdam Ford struct davinci_gpio *base = davinci_get_gpio_bank(dev, offset); 469*8e51c0f2SAdam Ford 470*8e51c0f2SAdam Ford _gpio_set_value(base, offset, value); 471*8e51c0f2SAdam Ford 472*8e51c0f2SAdam Ford return 0; 473*8e51c0f2SAdam Ford } 474*8e51c0f2SAdam Ford 475*8e51c0f2SAdam Ford static int davinci_gpio_get_function(struct udevice *dev, unsigned int offset) 476*8e51c0f2SAdam Ford { 477*8e51c0f2SAdam Ford unsigned int dir; 478*8e51c0f2SAdam Ford struct davinci_gpio *base = davinci_get_gpio_bank(dev, offset); 479*8e51c0f2SAdam Ford 480*8e51c0f2SAdam Ford dir = _gpio_get_dir(base, offset); 481*8e51c0f2SAdam Ford 482*8e51c0f2SAdam Ford if (dir) 483*8e51c0f2SAdam Ford return GPIOF_INPUT; 484*8e51c0f2SAdam Ford 485*8e51c0f2SAdam Ford return GPIOF_OUTPUT; 486*8e51c0f2SAdam Ford } 487*8e51c0f2SAdam Ford 488*8e51c0f2SAdam Ford static const struct dm_gpio_ops gpio_davinci_ops = { 489*8e51c0f2SAdam Ford .direction_input = davinci_gpio_direction_input, 490*8e51c0f2SAdam Ford .direction_output = davinci_gpio_direction_output, 491*8e51c0f2SAdam Ford .get_value = davinci_gpio_get_value, 492*8e51c0f2SAdam Ford .set_value = davinci_gpio_set_value, 493*8e51c0f2SAdam Ford .get_function = davinci_gpio_get_function, 494*8e51c0f2SAdam Ford }; 495*8e51c0f2SAdam Ford 496*8e51c0f2SAdam Ford static int davinci_gpio_probe(struct udevice *dev) 497*8e51c0f2SAdam Ford { 498*8e51c0f2SAdam Ford struct davinci_gpio_bank *bank = dev_get_priv(dev); 499*8e51c0f2SAdam Ford struct davinci_gpio_platdata *plat = dev_get_platdata(dev); 500*8e51c0f2SAdam Ford struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev); 501*8e51c0f2SAdam Ford const void *fdt = gd->fdt_blob; 502*8e51c0f2SAdam Ford int node = dev_of_offset(dev); 503*8e51c0f2SAdam Ford 504*8e51c0f2SAdam Ford uc_priv->bank_name = plat->port_name; 505*8e51c0f2SAdam Ford uc_priv->gpio_count = fdtdec_get_int(fdt, node, "ti,ngpio", -1); 506*8e51c0f2SAdam Ford bank->base = (struct davinci_gpio *)plat->base; 507*8e51c0f2SAdam Ford return 0; 508*8e51c0f2SAdam Ford } 509*8e51c0f2SAdam Ford 510*8e51c0f2SAdam Ford static const struct udevice_id davinci_gpio_ids[] = { 511*8e51c0f2SAdam Ford { .compatible = "ti,dm6441-gpio" }, 512*8e51c0f2SAdam Ford { } 513*8e51c0f2SAdam Ford }; 514*8e51c0f2SAdam Ford 515*8e51c0f2SAdam Ford static int davinci_gpio_ofdata_to_platdata(struct udevice *dev) 516*8e51c0f2SAdam Ford { 517*8e51c0f2SAdam Ford struct davinci_gpio_platdata *plat = dev_get_platdata(dev); 518*8e51c0f2SAdam Ford fdt_addr_t addr; 519*8e51c0f2SAdam Ford 520*8e51c0f2SAdam Ford addr = devfdt_get_addr(dev); 521*8e51c0f2SAdam Ford if (addr == FDT_ADDR_T_NONE) 522*8e51c0f2SAdam Ford return -EINVAL; 523*8e51c0f2SAdam Ford 524*8e51c0f2SAdam Ford plat->base = addr; 525*8e51c0f2SAdam Ford return 0; 526*8e51c0f2SAdam Ford } 527*8e51c0f2SAdam Ford 528*8e51c0f2SAdam Ford U_BOOT_DRIVER(gpio_davinci) = { 529*8e51c0f2SAdam Ford .name = "gpio_davinci", 530*8e51c0f2SAdam Ford .id = UCLASS_GPIO, 531*8e51c0f2SAdam Ford .ops = &gpio_davinci_ops, 532*8e51c0f2SAdam Ford .ofdata_to_platdata = of_match_ptr(davinci_gpio_ofdata_to_platdata), 533*8e51c0f2SAdam Ford .of_match = davinci_gpio_ids, 534*8e51c0f2SAdam Ford .bind = dm_scan_fdt_dev, 535*8e51c0f2SAdam Ford .platdata_auto_alloc_size = sizeof(struct davinci_gpio_platdata), 536*8e51c0f2SAdam Ford .probe = davinci_gpio_probe, 537*8e51c0f2SAdam Ford .priv_auto_alloc_size = sizeof(struct davinci_gpio_bank), 538*8e51c0f2SAdam Ford }; 539*8e51c0f2SAdam Ford 540*8e51c0f2SAdam Ford #endif 541