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> 108e51c0f2SAdam Ford #include <dm.h> 118e51c0f2SAdam 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> 16*1eddf549SAdam Ford #include <dt-bindings/gpio/gpio.h> 17f517afd5SLaurence Withers 188e51c0f2SAdam Ford #ifndef CONFIG_DM_GPIO 19f517afd5SLaurence Withers static struct gpio_registry { 20f517afd5SLaurence Withers int is_registered; 21f517afd5SLaurence Withers char name[GPIO_NAME_SIZE]; 22f517afd5SLaurence Withers } gpio_registry[MAX_NUM_GPIOS]; 23f517afd5SLaurence Withers 2403414ac4SHolger Hans Peter Freyther #if defined(CONFIG_SOC_DA8XX) 25f517afd5SLaurence Withers #define pinmux(x) (&davinci_syscfg_regs->pinmux[x]) 26f517afd5SLaurence Withers 27b9f56698STomas Novotny #if defined(CONFIG_SOC_DA8XX) && !defined(CONFIG_SOC_DA850) 28b9f56698STomas Novotny static const struct pinmux_config gpio_pinmux[] = { 29b9f56698STomas Novotny { pinmux(13), 8, 6 }, /* GP0[0] */ 30b9f56698STomas Novotny { pinmux(13), 8, 7 }, 31b9f56698STomas Novotny { pinmux(14), 8, 0 }, 32b9f56698STomas Novotny { pinmux(14), 8, 1 }, 33b9f56698STomas Novotny { pinmux(14), 8, 2 }, 34b9f56698STomas Novotny { pinmux(14), 8, 3 }, 35b9f56698STomas Novotny { pinmux(14), 8, 4 }, 36b9f56698STomas Novotny { pinmux(14), 8, 5 }, 37b9f56698STomas Novotny { pinmux(14), 8, 6 }, 38b9f56698STomas Novotny { pinmux(14), 8, 7 }, 39b9f56698STomas Novotny { pinmux(15), 8, 0 }, 40b9f56698STomas Novotny { pinmux(15), 8, 1 }, 41b9f56698STomas Novotny { pinmux(15), 8, 2 }, 42b9f56698STomas Novotny { pinmux(15), 8, 3 }, 43b9f56698STomas Novotny { pinmux(15), 8, 4 }, 44b9f56698STomas Novotny { pinmux(15), 8, 5 }, 45b9f56698STomas Novotny { pinmux(15), 8, 6 }, /* GP1[0] */ 46b9f56698STomas Novotny { pinmux(15), 8, 7 }, 47b9f56698STomas Novotny { pinmux(16), 8, 0 }, 48b9f56698STomas Novotny { pinmux(16), 8, 1 }, 49b9f56698STomas Novotny { pinmux(16), 8, 2 }, 50b9f56698STomas Novotny { pinmux(16), 8, 3 }, 51b9f56698STomas Novotny { pinmux(16), 8, 4 }, 52b9f56698STomas Novotny { pinmux(16), 8, 5 }, 53b9f56698STomas Novotny { pinmux(16), 8, 6 }, 54b9f56698STomas Novotny { pinmux(16), 8, 7 }, 55b9f56698STomas Novotny { pinmux(17), 8, 0 }, 56b9f56698STomas Novotny { pinmux(17), 8, 1 }, 57b9f56698STomas Novotny { pinmux(17), 8, 2 }, 58b9f56698STomas Novotny { pinmux(17), 8, 3 }, 59b9f56698STomas Novotny { pinmux(17), 8, 4 }, 60b9f56698STomas Novotny { pinmux(17), 8, 5 }, 61b9f56698STomas Novotny { pinmux(17), 8, 6 }, /* GP2[0] */ 62b9f56698STomas Novotny { pinmux(17), 8, 7 }, 63b9f56698STomas Novotny { pinmux(18), 8, 0 }, 64b9f56698STomas Novotny { pinmux(18), 8, 1 }, 65b9f56698STomas Novotny { pinmux(18), 8, 2 }, 66b9f56698STomas Novotny { pinmux(18), 8, 3 }, 67b9f56698STomas Novotny { pinmux(18), 8, 4 }, 68b9f56698STomas Novotny { pinmux(18), 8, 5 }, 69b9f56698STomas Novotny { pinmux(18), 8, 6 }, 70b9f56698STomas Novotny { pinmux(18), 8, 7 }, 71b9f56698STomas Novotny { pinmux(19), 8, 0 }, 72b9f56698STomas Novotny { pinmux(9), 8, 2 }, 73b9f56698STomas Novotny { pinmux(9), 8, 3 }, 74b9f56698STomas Novotny { pinmux(9), 8, 4 }, 75b9f56698STomas Novotny { pinmux(9), 8, 5 }, 76b9f56698STomas Novotny { pinmux(9), 8, 6 }, 77b9f56698STomas Novotny { pinmux(10), 8, 1 }, /* GP3[0] */ 78b9f56698STomas Novotny { pinmux(10), 8, 2 }, 79b9f56698STomas Novotny { pinmux(10), 8, 3 }, 80b9f56698STomas Novotny { pinmux(10), 8, 4 }, 81b9f56698STomas Novotny { pinmux(10), 8, 5 }, 82b9f56698STomas Novotny { pinmux(10), 8, 6 }, 83b9f56698STomas Novotny { pinmux(10), 8, 7 }, 84b9f56698STomas Novotny { pinmux(11), 8, 0 }, 85b9f56698STomas Novotny { pinmux(11), 8, 1 }, 86b9f56698STomas Novotny { pinmux(11), 8, 2 }, 87b9f56698STomas Novotny { pinmux(11), 8, 3 }, 88b9f56698STomas Novotny { pinmux(11), 8, 4 }, 89b9f56698STomas Novotny { pinmux(9), 8, 7 }, 90b9f56698STomas Novotny { pinmux(2), 8, 6 }, 91b9f56698STomas Novotny { pinmux(11), 8, 5 }, 92b9f56698STomas Novotny { pinmux(11), 8, 6 }, 93b9f56698STomas Novotny { pinmux(12), 8, 4 }, /* GP4[0] */ 94b9f56698STomas Novotny { pinmux(12), 8, 5 }, 95b9f56698STomas Novotny { pinmux(12), 8, 6 }, 96b9f56698STomas Novotny { pinmux(12), 8, 7 }, 97b9f56698STomas Novotny { pinmux(13), 8, 0 }, 98b9f56698STomas Novotny { pinmux(13), 8, 1 }, 99b9f56698STomas Novotny { pinmux(13), 8, 2 }, 100b9f56698STomas Novotny { pinmux(13), 8, 3 }, 101b9f56698STomas Novotny { pinmux(13), 8, 4 }, 102b9f56698STomas Novotny { pinmux(13), 8, 5 }, 103b9f56698STomas Novotny { pinmux(11), 8, 7 }, 104b9f56698STomas Novotny { pinmux(12), 8, 0 }, 105b9f56698STomas Novotny { pinmux(12), 8, 1 }, 106b9f56698STomas Novotny { pinmux(12), 8, 2 }, 107b9f56698STomas Novotny { pinmux(12), 8, 3 }, 108b9f56698STomas Novotny { pinmux(9), 8, 1 }, 109b9f56698STomas Novotny { pinmux(7), 8, 3 }, /* GP5[0] */ 110b9f56698STomas Novotny { pinmux(7), 8, 4 }, 111b9f56698STomas Novotny { pinmux(7), 8, 5 }, 112b9f56698STomas Novotny { pinmux(7), 8, 6 }, 113b9f56698STomas Novotny { pinmux(7), 8, 7 }, 114b9f56698STomas Novotny { pinmux(8), 8, 0 }, 115b9f56698STomas Novotny { pinmux(8), 8, 1 }, 116b9f56698STomas Novotny { pinmux(8), 8, 2 }, 117b9f56698STomas Novotny { pinmux(8), 8, 3 }, 118b9f56698STomas Novotny { pinmux(8), 8, 4 }, 119b9f56698STomas Novotny { pinmux(8), 8, 5 }, 120b9f56698STomas Novotny { pinmux(8), 8, 6 }, 121b9f56698STomas Novotny { pinmux(8), 8, 7 }, 122b9f56698STomas Novotny { pinmux(9), 8, 0 }, 123b9f56698STomas Novotny { pinmux(7), 8, 1 }, 124b9f56698STomas Novotny { pinmux(7), 8, 2 }, 125b9f56698STomas Novotny { pinmux(5), 8, 1 }, /* GP6[0] */ 126b9f56698STomas Novotny { pinmux(5), 8, 2 }, 127b9f56698STomas Novotny { pinmux(5), 8, 3 }, 128b9f56698STomas Novotny { pinmux(5), 8, 4 }, 129b9f56698STomas Novotny { pinmux(5), 8, 5 }, 130b9f56698STomas Novotny { pinmux(5), 8, 6 }, 131b9f56698STomas Novotny { pinmux(5), 8, 7 }, 132b9f56698STomas Novotny { pinmux(6), 8, 0 }, 133b9f56698STomas Novotny { pinmux(6), 8, 1 }, 134b9f56698STomas Novotny { pinmux(6), 8, 2 }, 135b9f56698STomas Novotny { pinmux(6), 8, 3 }, 136b9f56698STomas Novotny { pinmux(6), 8, 4 }, 137b9f56698STomas Novotny { pinmux(6), 8, 5 }, 138b9f56698STomas Novotny { pinmux(6), 8, 6 }, 139b9f56698STomas Novotny { pinmux(6), 8, 7 }, 140b9f56698STomas Novotny { pinmux(7), 8, 0 }, 141b9f56698STomas Novotny { pinmux(1), 8, 0 }, /* GP7[0] */ 142b9f56698STomas Novotny { pinmux(1), 8, 1 }, 143b9f56698STomas Novotny { pinmux(1), 8, 2 }, 144b9f56698STomas Novotny { pinmux(1), 8, 3 }, 145b9f56698STomas Novotny { pinmux(1), 8, 4 }, 146b9f56698STomas Novotny { pinmux(1), 8, 5 }, 147b9f56698STomas Novotny { pinmux(1), 8, 6 }, 148b9f56698STomas Novotny { pinmux(1), 8, 7 }, 149b9f56698STomas Novotny { pinmux(2), 8, 0 }, 150b9f56698STomas Novotny { pinmux(2), 8, 1 }, 151b9f56698STomas Novotny { pinmux(2), 8, 2 }, 152b9f56698STomas Novotny { pinmux(2), 8, 3 }, 153b9f56698STomas Novotny { pinmux(2), 8, 4 }, 154b9f56698STomas Novotny { pinmux(2), 8, 5 }, 155b9f56698STomas Novotny { pinmux(0), 1, 0 }, 156b9f56698STomas Novotny { pinmux(0), 1, 1 }, 157b9f56698STomas Novotny }; 15876b40ab4STom Rini #else /* CONFIG_SOC_DA8XX && CONFIG_SOC_DA850 */ 159f517afd5SLaurence Withers static const struct pinmux_config gpio_pinmux[] = { 160f517afd5SLaurence Withers { pinmux(1), 8, 7 }, /* GP0[0] */ 161f517afd5SLaurence Withers { pinmux(1), 8, 6 }, 162f517afd5SLaurence Withers { pinmux(1), 8, 5 }, 163f517afd5SLaurence Withers { pinmux(1), 8, 4 }, 164f517afd5SLaurence Withers { pinmux(1), 8, 3 }, 165f517afd5SLaurence Withers { pinmux(1), 8, 2 }, 166f517afd5SLaurence Withers { pinmux(1), 8, 1 }, 167f517afd5SLaurence Withers { pinmux(1), 8, 0 }, 168f517afd5SLaurence Withers { pinmux(0), 8, 7 }, 169f517afd5SLaurence Withers { pinmux(0), 8, 6 }, 170f517afd5SLaurence Withers { pinmux(0), 8, 5 }, 171f517afd5SLaurence Withers { pinmux(0), 8, 4 }, 172f517afd5SLaurence Withers { pinmux(0), 8, 3 }, 173f517afd5SLaurence Withers { pinmux(0), 8, 2 }, 174f517afd5SLaurence Withers { pinmux(0), 8, 1 }, 175f517afd5SLaurence Withers { pinmux(0), 8, 0 }, 176f517afd5SLaurence Withers { pinmux(4), 8, 7 }, /* GP1[0] */ 177f517afd5SLaurence Withers { pinmux(4), 8, 6 }, 178f517afd5SLaurence Withers { pinmux(4), 8, 5 }, 179f517afd5SLaurence Withers { pinmux(4), 8, 4 }, 180f517afd5SLaurence Withers { pinmux(4), 8, 3 }, 181f517afd5SLaurence Withers { pinmux(4), 8, 2 }, 182f517afd5SLaurence Withers { pinmux(4), 4, 1 }, 183f517afd5SLaurence Withers { pinmux(4), 4, 0 }, 184f517afd5SLaurence Withers { pinmux(3), 4, 0 }, 185f517afd5SLaurence Withers { pinmux(2), 4, 6 }, 186f517afd5SLaurence Withers { pinmux(2), 4, 5 }, 187f517afd5SLaurence Withers { pinmux(2), 4, 4 }, 188f517afd5SLaurence Withers { pinmux(2), 4, 3 }, 189f517afd5SLaurence Withers { pinmux(2), 4, 2 }, 190f517afd5SLaurence Withers { pinmux(2), 4, 1 }, 191f517afd5SLaurence Withers { pinmux(2), 8, 0 }, 192f517afd5SLaurence Withers { pinmux(6), 8, 7 }, /* GP2[0] */ 193f517afd5SLaurence Withers { pinmux(6), 8, 6 }, 194f517afd5SLaurence Withers { pinmux(6), 8, 5 }, 195f517afd5SLaurence Withers { pinmux(6), 8, 4 }, 196f517afd5SLaurence Withers { pinmux(6), 8, 3 }, 197f517afd5SLaurence Withers { pinmux(6), 8, 2 }, 198f517afd5SLaurence Withers { pinmux(6), 8, 1 }, 199f517afd5SLaurence Withers { pinmux(6), 8, 0 }, 200f517afd5SLaurence Withers { pinmux(5), 8, 7 }, 201f517afd5SLaurence Withers { pinmux(5), 8, 6 }, 202f517afd5SLaurence Withers { pinmux(5), 8, 5 }, 203f517afd5SLaurence Withers { pinmux(5), 8, 4 }, 204f517afd5SLaurence Withers { pinmux(5), 8, 3 }, 205f517afd5SLaurence Withers { pinmux(5), 8, 2 }, 206f517afd5SLaurence Withers { pinmux(5), 8, 1 }, 207f517afd5SLaurence Withers { pinmux(5), 8, 0 }, 208f517afd5SLaurence Withers { pinmux(8), 8, 7 }, /* GP3[0] */ 209f517afd5SLaurence Withers { pinmux(8), 8, 6 }, 210f517afd5SLaurence Withers { pinmux(8), 8, 5 }, 211f517afd5SLaurence Withers { pinmux(8), 8, 4 }, 212f517afd5SLaurence Withers { pinmux(8), 8, 3 }, 213f517afd5SLaurence Withers { pinmux(8), 8, 2 }, 214f517afd5SLaurence Withers { pinmux(8), 8, 1 }, 215f517afd5SLaurence Withers { pinmux(8), 8, 0 }, 216f517afd5SLaurence Withers { pinmux(7), 8, 7 }, 217f517afd5SLaurence Withers { pinmux(7), 8, 6 }, 218f517afd5SLaurence Withers { pinmux(7), 8, 5 }, 219f517afd5SLaurence Withers { pinmux(7), 8, 4 }, 220f517afd5SLaurence Withers { pinmux(7), 8, 3 }, 221f517afd5SLaurence Withers { pinmux(7), 8, 2 }, 222f517afd5SLaurence Withers { pinmux(7), 8, 1 }, 223f517afd5SLaurence Withers { pinmux(7), 8, 0 }, 224f517afd5SLaurence Withers { pinmux(10), 8, 7 }, /* GP4[0] */ 225f517afd5SLaurence Withers { pinmux(10), 8, 6 }, 226f517afd5SLaurence Withers { pinmux(10), 8, 5 }, 227f517afd5SLaurence Withers { pinmux(10), 8, 4 }, 228f517afd5SLaurence Withers { pinmux(10), 8, 3 }, 229f517afd5SLaurence Withers { pinmux(10), 8, 2 }, 230f517afd5SLaurence Withers { pinmux(10), 8, 1 }, 231f517afd5SLaurence Withers { pinmux(10), 8, 0 }, 232f517afd5SLaurence Withers { pinmux(9), 8, 7 }, 233f517afd5SLaurence Withers { pinmux(9), 8, 6 }, 234f517afd5SLaurence Withers { pinmux(9), 8, 5 }, 235f517afd5SLaurence Withers { pinmux(9), 8, 4 }, 236f517afd5SLaurence Withers { pinmux(9), 8, 3 }, 237f517afd5SLaurence Withers { pinmux(9), 8, 2 }, 238f517afd5SLaurence Withers { pinmux(9), 8, 1 }, 239f517afd5SLaurence Withers { pinmux(9), 8, 0 }, 240f517afd5SLaurence Withers { pinmux(12), 8, 7 }, /* GP5[0] */ 241f517afd5SLaurence Withers { pinmux(12), 8, 6 }, 242f517afd5SLaurence Withers { pinmux(12), 8, 5 }, 243f517afd5SLaurence Withers { pinmux(12), 8, 4 }, 244f517afd5SLaurence Withers { pinmux(12), 8, 3 }, 245f517afd5SLaurence Withers { pinmux(12), 8, 2 }, 246f517afd5SLaurence Withers { pinmux(12), 8, 1 }, 247f517afd5SLaurence Withers { pinmux(12), 8, 0 }, 248f517afd5SLaurence Withers { pinmux(11), 8, 7 }, 249f517afd5SLaurence Withers { pinmux(11), 8, 6 }, 250f517afd5SLaurence Withers { pinmux(11), 8, 5 }, 251f517afd5SLaurence Withers { pinmux(11), 8, 4 }, 252f517afd5SLaurence Withers { pinmux(11), 8, 3 }, 253f517afd5SLaurence Withers { pinmux(11), 8, 2 }, 254f517afd5SLaurence Withers { pinmux(11), 8, 1 }, 255f517afd5SLaurence Withers { pinmux(11), 8, 0 }, 256f517afd5SLaurence Withers { pinmux(19), 8, 6 }, /* GP6[0] */ 257f517afd5SLaurence Withers { pinmux(19), 8, 5 }, 258f517afd5SLaurence Withers { pinmux(19), 8, 4 }, 259f517afd5SLaurence Withers { pinmux(19), 8, 3 }, 260f517afd5SLaurence Withers { pinmux(19), 8, 2 }, 261f517afd5SLaurence Withers { pinmux(16), 8, 1 }, 262f517afd5SLaurence Withers { pinmux(14), 8, 1 }, 263f517afd5SLaurence Withers { pinmux(14), 8, 0 }, 264f517afd5SLaurence Withers { pinmux(13), 8, 7 }, 265f517afd5SLaurence Withers { pinmux(13), 8, 6 }, 266f517afd5SLaurence Withers { pinmux(13), 8, 5 }, 267f517afd5SLaurence Withers { pinmux(13), 8, 4 }, 268f517afd5SLaurence Withers { pinmux(13), 8, 3 }, 269f517afd5SLaurence Withers { pinmux(13), 8, 2 }, 270f517afd5SLaurence Withers { pinmux(13), 8, 1 }, 271f517afd5SLaurence Withers { pinmux(13), 8, 0 }, 272f517afd5SLaurence Withers { pinmux(18), 8, 1 }, /* GP7[0] */ 273f517afd5SLaurence Withers { pinmux(18), 8, 0 }, 274f517afd5SLaurence Withers { pinmux(17), 8, 7 }, 275f517afd5SLaurence Withers { pinmux(17), 8, 6 }, 276f517afd5SLaurence Withers { pinmux(17), 8, 5 }, 277f517afd5SLaurence Withers { pinmux(17), 8, 4 }, 278f517afd5SLaurence Withers { pinmux(17), 8, 3 }, 279f517afd5SLaurence Withers { pinmux(17), 8, 2 }, 280f517afd5SLaurence Withers { pinmux(17), 8, 1 }, 281f517afd5SLaurence Withers { pinmux(17), 8, 0 }, 282f517afd5SLaurence Withers { pinmux(16), 8, 7 }, 283f517afd5SLaurence Withers { pinmux(16), 8, 6 }, 284f517afd5SLaurence Withers { pinmux(16), 8, 5 }, 285f517afd5SLaurence Withers { pinmux(16), 8, 4 }, 286f517afd5SLaurence Withers { pinmux(16), 8, 3 }, 287f517afd5SLaurence Withers { pinmux(16), 8, 2 }, 288f517afd5SLaurence Withers { pinmux(19), 8, 0 }, /* GP8[0] */ 289f517afd5SLaurence Withers { pinmux(3), 4, 7 }, 290f517afd5SLaurence Withers { pinmux(3), 4, 6 }, 291f517afd5SLaurence Withers { pinmux(3), 4, 5 }, 292f517afd5SLaurence Withers { pinmux(3), 4, 4 }, 293f517afd5SLaurence Withers { pinmux(3), 4, 3 }, 294f517afd5SLaurence Withers { pinmux(3), 4, 2 }, 295f517afd5SLaurence Withers { pinmux(2), 4, 7 }, 296f517afd5SLaurence Withers { pinmux(19), 8, 1 }, 297f517afd5SLaurence Withers { pinmux(19), 8, 0 }, 298f517afd5SLaurence Withers { pinmux(18), 8, 7 }, 299f517afd5SLaurence Withers { pinmux(18), 8, 6 }, 300f517afd5SLaurence Withers { pinmux(18), 8, 5 }, 301f517afd5SLaurence Withers { pinmux(18), 8, 4 }, 302f517afd5SLaurence Withers { pinmux(18), 8, 3 }, 303f517afd5SLaurence Withers { pinmux(18), 8, 2 }, 304f517afd5SLaurence Withers }; 30576b40ab4STom Rini #endif /* CONFIG_SOC_DA8XX && !CONFIG_SOC_DA850 */ 30676b40ab4STom Rini #else /* !CONFIG_SOC_DA8XX */ 30703414ac4SHolger Hans Peter Freyther #define davinci_configure_pin_mux(a, b) 30876b40ab4STom Rini #endif /* CONFIG_SOC_DA8XX */ 309f517afd5SLaurence Withers 3108e51c0f2SAdam Ford int gpio_request(unsigned int gpio, const char *label) 311f517afd5SLaurence Withers { 312365d6070SJoe Hershberger if (gpio >= MAX_NUM_GPIOS) 313f517afd5SLaurence Withers return -1; 314f517afd5SLaurence Withers 315365d6070SJoe Hershberger if (gpio_registry[gpio].is_registered) 316f517afd5SLaurence Withers return -1; 317f517afd5SLaurence Withers 318365d6070SJoe Hershberger gpio_registry[gpio].is_registered = 1; 319365d6070SJoe Hershberger strncpy(gpio_registry[gpio].name, label, GPIO_NAME_SIZE); 320365d6070SJoe Hershberger gpio_registry[gpio].name[GPIO_NAME_SIZE - 1] = 0; 321f517afd5SLaurence Withers 322365d6070SJoe Hershberger davinci_configure_pin_mux(&gpio_pinmux[gpio], 1); 323f517afd5SLaurence Withers 324f517afd5SLaurence Withers return 0; 325f517afd5SLaurence Withers } 326f517afd5SLaurence Withers 3278e51c0f2SAdam Ford int gpio_free(unsigned int gpio) 328f517afd5SLaurence Withers { 329365d6070SJoe Hershberger if (gpio >= MAX_NUM_GPIOS) 330365d6070SJoe Hershberger return -1; 331365d6070SJoe Hershberger 332365d6070SJoe Hershberger if (!gpio_registry[gpio].is_registered) 333365d6070SJoe Hershberger return -1; 334365d6070SJoe Hershberger 335365d6070SJoe Hershberger gpio_registry[gpio].is_registered = 0; 336365d6070SJoe Hershberger gpio_registry[gpio].name[0] = '\0'; 337365d6070SJoe Hershberger /* Do not configure as input or change pin mux here */ 338365d6070SJoe Hershberger return 0; 339f517afd5SLaurence Withers } 3408e51c0f2SAdam Ford #endif 341f517afd5SLaurence Withers 3428e51c0f2SAdam Ford static int _gpio_direction_output(struct davinci_gpio *bank, unsigned int gpio, int value) 343f517afd5SLaurence Withers { 344365d6070SJoe Hershberger clrbits_le32(&bank->dir, 1U << GPIO_BIT(gpio)); 345365d6070SJoe Hershberger gpio_set_value(gpio, value); 346f517afd5SLaurence Withers return 0; 347f517afd5SLaurence Withers } 348f517afd5SLaurence Withers 3498e51c0f2SAdam Ford static int _gpio_direction_input(struct davinci_gpio *bank, unsigned int gpio) 350f517afd5SLaurence Withers { 3518e51c0f2SAdam Ford setbits_le32(&bank->dir, 1U << GPIO_BIT(gpio)); 3528e51c0f2SAdam Ford return 0; 3538e51c0f2SAdam Ford } 354f517afd5SLaurence Withers 3558e51c0f2SAdam Ford static int _gpio_get_value(struct davinci_gpio *bank, unsigned int gpio) 3568e51c0f2SAdam Ford { 3578e51c0f2SAdam Ford unsigned int ip; 358365d6070SJoe Hershberger ip = in_le32(&bank->in_data) & (1U << GPIO_BIT(gpio)); 359f517afd5SLaurence Withers return ip ? 1 : 0; 360f517afd5SLaurence Withers } 361f517afd5SLaurence Withers 3628e51c0f2SAdam Ford static int _gpio_set_value(struct davinci_gpio *bank, unsigned int gpio, int value) 363f517afd5SLaurence Withers { 364f517afd5SLaurence Withers if (value) 365365d6070SJoe Hershberger bank->set_data = 1U << GPIO_BIT(gpio); 366f517afd5SLaurence Withers else 367365d6070SJoe Hershberger bank->clr_data = 1U << GPIO_BIT(gpio); 368365d6070SJoe Hershberger 369365d6070SJoe Hershberger return 0; 370f517afd5SLaurence Withers } 371f517afd5SLaurence Withers 3728e51c0f2SAdam Ford static int _gpio_get_dir(struct davinci_gpio *bank, unsigned int gpio) 3738e51c0f2SAdam Ford { 3748e51c0f2SAdam Ford return in_le32(&bank->dir) & (1U << GPIO_BIT(gpio)); 3758e51c0f2SAdam Ford } 3768e51c0f2SAdam Ford 3778e51c0f2SAdam Ford #ifndef CONFIG_DM_GPIO 3788e51c0f2SAdam Ford 379f517afd5SLaurence Withers void gpio_info(void) 380f517afd5SLaurence Withers { 3818e51c0f2SAdam Ford unsigned int gpio, dir, val; 382f517afd5SLaurence Withers struct davinci_gpio *bank; 383f517afd5SLaurence Withers 384365d6070SJoe Hershberger for (gpio = 0; gpio < MAX_NUM_GPIOS; ++gpio) { 385365d6070SJoe Hershberger bank = GPIO_BANK(gpio); 3868e51c0f2SAdam Ford dir = _gpio_get_dir(bank, gpio); 387365d6070SJoe Hershberger val = gpio_get_value(gpio); 388f517afd5SLaurence Withers 389f517afd5SLaurence Withers printf("% 4d: %s: %d [%c] %s\n", 390365d6070SJoe Hershberger gpio, dir ? " in" : "out", val, 391365d6070SJoe Hershberger gpio_registry[gpio].is_registered ? 'x' : ' ', 392365d6070SJoe Hershberger gpio_registry[gpio].name); 393f517afd5SLaurence Withers } 394f517afd5SLaurence Withers } 3958e51c0f2SAdam Ford 3968e51c0f2SAdam Ford int gpio_direction_input(unsigned int gpio) 3978e51c0f2SAdam Ford { 3988e51c0f2SAdam Ford struct davinci_gpio *bank; 3998e51c0f2SAdam Ford 4008e51c0f2SAdam Ford bank = GPIO_BANK(gpio); 4018e51c0f2SAdam Ford return _gpio_direction_input(bank, gpio); 4028e51c0f2SAdam Ford } 4038e51c0f2SAdam Ford 4048e51c0f2SAdam Ford int gpio_direction_output(unsigned int gpio, int value) 4058e51c0f2SAdam Ford { 4068e51c0f2SAdam Ford struct davinci_gpio *bank; 4078e51c0f2SAdam Ford 4088e51c0f2SAdam Ford bank = GPIO_BANK(gpio); 4098e51c0f2SAdam Ford return _gpio_direction_output(bank, gpio, value); 4108e51c0f2SAdam Ford } 4118e51c0f2SAdam Ford 4128e51c0f2SAdam Ford int gpio_get_value(unsigned int gpio) 4138e51c0f2SAdam Ford { 4148e51c0f2SAdam Ford struct davinci_gpio *bank; 4158e51c0f2SAdam Ford 4168e51c0f2SAdam Ford bank = GPIO_BANK(gpio); 4178e51c0f2SAdam Ford return _gpio_get_value(bank, gpio); 4188e51c0f2SAdam Ford } 4198e51c0f2SAdam Ford 4208e51c0f2SAdam Ford int gpio_set_value(unsigned int gpio, int value) 4218e51c0f2SAdam Ford { 4228e51c0f2SAdam Ford struct davinci_gpio *bank; 4238e51c0f2SAdam Ford 4248e51c0f2SAdam Ford bank = GPIO_BANK(gpio); 4258e51c0f2SAdam Ford return _gpio_set_value(bank, gpio, value); 4268e51c0f2SAdam Ford } 4278e51c0f2SAdam Ford 4288e51c0f2SAdam Ford #else /* CONFIG_DM_GPIO */ 4298e51c0f2SAdam Ford 4308e51c0f2SAdam Ford static struct davinci_gpio *davinci_get_gpio_bank(struct udevice *dev, unsigned int offset) 4318e51c0f2SAdam Ford { 4328e51c0f2SAdam Ford struct davinci_gpio_bank *bank = dev_get_priv(dev); 433*1eddf549SAdam Ford unsigned int addr; 4348e51c0f2SAdam Ford 435*1eddf549SAdam Ford /* 436*1eddf549SAdam Ford * The device tree is not broken into banks but the infrastructure is 4378e51c0f2SAdam Ford * expecting it this way, so we'll first include the 0x10 offset, then 4388e51c0f2SAdam Ford * calculate the bank manually based on the offset. 439*1eddf549SAdam Ford * Casting 'addr' as Unsigned long is needed to make the math work. 4408e51c0f2SAdam Ford */ 441*1eddf549SAdam Ford addr = ((unsigned long)(struct davinci_gpio *)bank->base) + 442*1eddf549SAdam Ford 0x10 + (0x28 * (offset >> 5)); 443*1eddf549SAdam Ford return (struct davinci_gpio *)addr; 4448e51c0f2SAdam Ford } 4458e51c0f2SAdam Ford 4468e51c0f2SAdam Ford static int davinci_gpio_direction_input(struct udevice *dev, unsigned int offset) 4478e51c0f2SAdam Ford { 4488e51c0f2SAdam Ford struct davinci_gpio *base = davinci_get_gpio_bank(dev, offset); 4498e51c0f2SAdam Ford 450*1eddf549SAdam Ford /* 451*1eddf549SAdam Ford * Fetch the address based on GPIO, but only pass the masked low 32-bits 452*1eddf549SAdam Ford */ 453*1eddf549SAdam Ford _gpio_direction_input(base, (offset & 0x1f)); 4548e51c0f2SAdam Ford return 0; 4558e51c0f2SAdam Ford } 4568e51c0f2SAdam Ford 4578e51c0f2SAdam Ford static int davinci_gpio_direction_output(struct udevice *dev, unsigned int offset, 4588e51c0f2SAdam Ford int value) 4598e51c0f2SAdam Ford { 4608e51c0f2SAdam Ford struct davinci_gpio *base = davinci_get_gpio_bank(dev, offset); 4618e51c0f2SAdam Ford 462*1eddf549SAdam Ford _gpio_direction_output(base, (offset & 0x1f), value); 4638e51c0f2SAdam Ford return 0; 4648e51c0f2SAdam Ford } 4658e51c0f2SAdam Ford 4668e51c0f2SAdam Ford static int davinci_gpio_get_value(struct udevice *dev, unsigned int offset) 4678e51c0f2SAdam Ford { 4688e51c0f2SAdam Ford struct davinci_gpio *base = davinci_get_gpio_bank(dev, offset); 4698e51c0f2SAdam Ford 470*1eddf549SAdam Ford return _gpio_get_value(base, (offset & 0x1f)); 4718e51c0f2SAdam Ford } 4728e51c0f2SAdam Ford 4738e51c0f2SAdam Ford static int davinci_gpio_set_value(struct udevice *dev, unsigned int offset, 4748e51c0f2SAdam Ford int value) 4758e51c0f2SAdam Ford { 4768e51c0f2SAdam Ford struct davinci_gpio *base = davinci_get_gpio_bank(dev, offset); 4778e51c0f2SAdam Ford 478*1eddf549SAdam Ford _gpio_set_value(base, (offset & 0x1f), value); 4798e51c0f2SAdam Ford 4808e51c0f2SAdam Ford return 0; 4818e51c0f2SAdam Ford } 4828e51c0f2SAdam Ford 4838e51c0f2SAdam Ford static int davinci_gpio_get_function(struct udevice *dev, unsigned int offset) 4848e51c0f2SAdam Ford { 4858e51c0f2SAdam Ford unsigned int dir; 4868e51c0f2SAdam Ford struct davinci_gpio *base = davinci_get_gpio_bank(dev, offset); 4878e51c0f2SAdam Ford 4888e51c0f2SAdam Ford dir = _gpio_get_dir(base, offset); 4898e51c0f2SAdam Ford 4908e51c0f2SAdam Ford if (dir) 4918e51c0f2SAdam Ford return GPIOF_INPUT; 4928e51c0f2SAdam Ford 4938e51c0f2SAdam Ford return GPIOF_OUTPUT; 4948e51c0f2SAdam Ford } 4958e51c0f2SAdam Ford 4968e51c0f2SAdam Ford static const struct dm_gpio_ops gpio_davinci_ops = { 4978e51c0f2SAdam Ford .direction_input = davinci_gpio_direction_input, 4988e51c0f2SAdam Ford .direction_output = davinci_gpio_direction_output, 4998e51c0f2SAdam Ford .get_value = davinci_gpio_get_value, 5008e51c0f2SAdam Ford .set_value = davinci_gpio_set_value, 5018e51c0f2SAdam Ford .get_function = davinci_gpio_get_function, 5028e51c0f2SAdam Ford }; 5038e51c0f2SAdam Ford 5048e51c0f2SAdam Ford static int davinci_gpio_probe(struct udevice *dev) 5058e51c0f2SAdam Ford { 5068e51c0f2SAdam Ford struct davinci_gpio_bank *bank = dev_get_priv(dev); 5078e51c0f2SAdam Ford struct davinci_gpio_platdata *plat = dev_get_platdata(dev); 5088e51c0f2SAdam Ford struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev); 5098e51c0f2SAdam Ford const void *fdt = gd->fdt_blob; 5108e51c0f2SAdam Ford int node = dev_of_offset(dev); 5118e51c0f2SAdam Ford 5128e51c0f2SAdam Ford uc_priv->bank_name = plat->port_name; 5138e51c0f2SAdam Ford uc_priv->gpio_count = fdtdec_get_int(fdt, node, "ti,ngpio", -1); 5148e51c0f2SAdam Ford bank->base = (struct davinci_gpio *)plat->base; 5158e51c0f2SAdam Ford return 0; 5168e51c0f2SAdam Ford } 5178e51c0f2SAdam Ford 5188e51c0f2SAdam Ford static const struct udevice_id davinci_gpio_ids[] = { 5198e51c0f2SAdam Ford { .compatible = "ti,dm6441-gpio" }, 5208e51c0f2SAdam Ford { } 5218e51c0f2SAdam Ford }; 5228e51c0f2SAdam Ford 5238e51c0f2SAdam Ford static int davinci_gpio_ofdata_to_platdata(struct udevice *dev) 5248e51c0f2SAdam Ford { 5258e51c0f2SAdam Ford struct davinci_gpio_platdata *plat = dev_get_platdata(dev); 5268e51c0f2SAdam Ford fdt_addr_t addr; 5278e51c0f2SAdam Ford 5288e51c0f2SAdam Ford addr = devfdt_get_addr(dev); 5298e51c0f2SAdam Ford if (addr == FDT_ADDR_T_NONE) 5308e51c0f2SAdam Ford return -EINVAL; 5318e51c0f2SAdam Ford 5328e51c0f2SAdam Ford plat->base = addr; 5338e51c0f2SAdam Ford return 0; 5348e51c0f2SAdam Ford } 5358e51c0f2SAdam Ford 5368e51c0f2SAdam Ford U_BOOT_DRIVER(gpio_davinci) = { 5378e51c0f2SAdam Ford .name = "gpio_davinci", 5388e51c0f2SAdam Ford .id = UCLASS_GPIO, 5398e51c0f2SAdam Ford .ops = &gpio_davinci_ops, 5408e51c0f2SAdam Ford .ofdata_to_platdata = of_match_ptr(davinci_gpio_ofdata_to_platdata), 5418e51c0f2SAdam Ford .of_match = davinci_gpio_ids, 5428e51c0f2SAdam Ford .bind = dm_scan_fdt_dev, 5438e51c0f2SAdam Ford .platdata_auto_alloc_size = sizeof(struct davinci_gpio_platdata), 5448e51c0f2SAdam Ford .probe = davinci_gpio_probe, 5458e51c0f2SAdam Ford .priv_auto_alloc_size = sizeof(struct davinci_gpio_bank), 5468e51c0f2SAdam Ford }; 5478e51c0f2SAdam Ford 5488e51c0f2SAdam Ford #endif 549