1ebf0bd36SAmit Kucheria /* 2ebf0bd36SAmit Kucheria * linux/drivers/i2c/chips/twl4030-power.c 3ebf0bd36SAmit Kucheria * 4ebf0bd36SAmit Kucheria * Handle TWL4030 Power initialization 5ebf0bd36SAmit Kucheria * 6ebf0bd36SAmit Kucheria * Copyright (C) 2008 Nokia Corporation 7ebf0bd36SAmit Kucheria * Copyright (C) 2006 Texas Instruments, Inc 8ebf0bd36SAmit Kucheria * 9ebf0bd36SAmit Kucheria * Written by Kalle Jokiniemi 10ebf0bd36SAmit Kucheria * Peter De Schrijver <peter.de-schrijver@nokia.com> 11ebf0bd36SAmit Kucheria * Several fixes by Amit Kucheria <amit.kucheria@verdurent.com> 12ebf0bd36SAmit Kucheria * 13ebf0bd36SAmit Kucheria * This file is subject to the terms and conditions of the GNU General 14ebf0bd36SAmit Kucheria * Public License. See the file "COPYING" in the main directory of this 15ebf0bd36SAmit Kucheria * archive for more details. 16ebf0bd36SAmit Kucheria * 17ebf0bd36SAmit Kucheria * This program is distributed in the hope that it will be useful, 18ebf0bd36SAmit Kucheria * but WITHOUT ANY WARRANTY; without even the implied warranty of 19ebf0bd36SAmit Kucheria * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20ebf0bd36SAmit Kucheria * GNU General Public License for more details. 21ebf0bd36SAmit Kucheria * 22ebf0bd36SAmit Kucheria * You should have received a copy of the GNU General Public License 23ebf0bd36SAmit Kucheria * along with this program; if not, write to the Free Software 24ebf0bd36SAmit Kucheria * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 25ebf0bd36SAmit Kucheria */ 26ebf0bd36SAmit Kucheria 27ebf0bd36SAmit Kucheria #include <linux/module.h> 28ebf0bd36SAmit Kucheria #include <linux/pm.h> 29ebf0bd36SAmit Kucheria #include <linux/i2c/twl4030.h> 30ebf0bd36SAmit Kucheria #include <linux/platform_device.h> 31ebf0bd36SAmit Kucheria 32ebf0bd36SAmit Kucheria #include <asm/mach-types.h> 33ebf0bd36SAmit Kucheria 34ebf0bd36SAmit Kucheria static u8 twl4030_start_script_address = 0x2b; 35ebf0bd36SAmit Kucheria 36ebf0bd36SAmit Kucheria #define PWR_P1_SW_EVENTS 0x10 37ebf0bd36SAmit Kucheria #define PWR_DEVOFF (1<<0) 38ebf0bd36SAmit Kucheria 39ebf0bd36SAmit Kucheria #define PHY_TO_OFF_PM_MASTER(p) (p - 0x36) 40ebf0bd36SAmit Kucheria #define PHY_TO_OFF_PM_RECEIVER(p) (p - 0x5b) 41ebf0bd36SAmit Kucheria 42ebf0bd36SAmit Kucheria /* resource - hfclk */ 43ebf0bd36SAmit Kucheria #define R_HFCLKOUT_DEV_GRP PHY_TO_OFF_PM_RECEIVER(0xe6) 44ebf0bd36SAmit Kucheria 45ebf0bd36SAmit Kucheria /* PM events */ 46ebf0bd36SAmit Kucheria #define R_P1_SW_EVENTS PHY_TO_OFF_PM_MASTER(0x46) 47ebf0bd36SAmit Kucheria #define R_P2_SW_EVENTS PHY_TO_OFF_PM_MASTER(0x47) 48ebf0bd36SAmit Kucheria #define R_P3_SW_EVENTS PHY_TO_OFF_PM_MASTER(0x48) 49ebf0bd36SAmit Kucheria #define R_CFG_P1_TRANSITION PHY_TO_OFF_PM_MASTER(0x36) 50ebf0bd36SAmit Kucheria #define R_CFG_P2_TRANSITION PHY_TO_OFF_PM_MASTER(0x37) 51ebf0bd36SAmit Kucheria #define R_CFG_P3_TRANSITION PHY_TO_OFF_PM_MASTER(0x38) 52ebf0bd36SAmit Kucheria 53ebf0bd36SAmit Kucheria #define LVL_WAKEUP 0x08 54ebf0bd36SAmit Kucheria 55ebf0bd36SAmit Kucheria #define ENABLE_WARMRESET (1<<4) 56ebf0bd36SAmit Kucheria 57ebf0bd36SAmit Kucheria #define END_OF_SCRIPT 0x3f 58ebf0bd36SAmit Kucheria 59ebf0bd36SAmit Kucheria #define R_SEQ_ADD_A2S PHY_TO_OFF_PM_MASTER(0x55) 60ebf0bd36SAmit Kucheria #define R_SEQ_ADD_S2A12 PHY_TO_OFF_PM_MASTER(0x56) 61ebf0bd36SAmit Kucheria #define R_SEQ_ADD_S2A3 PHY_TO_OFF_PM_MASTER(0x57) 62ebf0bd36SAmit Kucheria #define R_SEQ_ADD_WARM PHY_TO_OFF_PM_MASTER(0x58) 63ebf0bd36SAmit Kucheria #define R_MEMORY_ADDRESS PHY_TO_OFF_PM_MASTER(0x59) 64ebf0bd36SAmit Kucheria #define R_MEMORY_DATA PHY_TO_OFF_PM_MASTER(0x5a) 65ebf0bd36SAmit Kucheria 66ebf0bd36SAmit Kucheria #define R_PROTECT_KEY 0x0E 67c8269331SSamuel Ortiz #define R_KEY_1 0xC0 68c8269331SSamuel Ortiz #define R_KEY_2 0x0C 69ebf0bd36SAmit Kucheria 70890463f0SAmit Kucheria /* resource configuration registers 71890463f0SAmit Kucheria <RESOURCE>_DEV_GRP at address 'n+0' 72890463f0SAmit Kucheria <RESOURCE>_TYPE at address 'n+1' 73890463f0SAmit Kucheria <RESOURCE>_REMAP at address 'n+2' 74890463f0SAmit Kucheria <RESOURCE>_DEDICATED at address 'n+3' 75890463f0SAmit Kucheria */ 76e97d1546SAmit Kucheria #define DEV_GRP_OFFSET 0 77ebf0bd36SAmit Kucheria #define TYPE_OFFSET 1 78ebf0bd36SAmit Kucheria 79e97d1546SAmit Kucheria /* Bit positions in the registers */ 80890463f0SAmit Kucheria 81890463f0SAmit Kucheria /* <RESOURCE>_DEV_GRP */ 82e97d1546SAmit Kucheria #define DEV_GRP_SHIFT 5 83e97d1546SAmit Kucheria #define DEV_GRP_MASK (7 << DEV_GRP_SHIFT) 84890463f0SAmit Kucheria 85890463f0SAmit Kucheria /* <RESOURCE>_TYPE */ 86ebf0bd36SAmit Kucheria #define TYPE_SHIFT 0 87ebf0bd36SAmit Kucheria #define TYPE_MASK (7 << TYPE_SHIFT) 88ebf0bd36SAmit Kucheria #define TYPE2_SHIFT 3 89ebf0bd36SAmit Kucheria #define TYPE2_MASK (3 << TYPE2_SHIFT) 90ebf0bd36SAmit Kucheria 91ebf0bd36SAmit Kucheria static u8 res_config_addrs[] = { 92ebf0bd36SAmit Kucheria [RES_VAUX1] = 0x17, 93ebf0bd36SAmit Kucheria [RES_VAUX2] = 0x1b, 94ebf0bd36SAmit Kucheria [RES_VAUX3] = 0x1f, 95ebf0bd36SAmit Kucheria [RES_VAUX4] = 0x23, 96ebf0bd36SAmit Kucheria [RES_VMMC1] = 0x27, 97ebf0bd36SAmit Kucheria [RES_VMMC2] = 0x2b, 98ebf0bd36SAmit Kucheria [RES_VPLL1] = 0x2f, 99ebf0bd36SAmit Kucheria [RES_VPLL2] = 0x33, 100ebf0bd36SAmit Kucheria [RES_VSIM] = 0x37, 101ebf0bd36SAmit Kucheria [RES_VDAC] = 0x3b, 102ebf0bd36SAmit Kucheria [RES_VINTANA1] = 0x3f, 103ebf0bd36SAmit Kucheria [RES_VINTANA2] = 0x43, 104ebf0bd36SAmit Kucheria [RES_VINTDIG] = 0x47, 105ebf0bd36SAmit Kucheria [RES_VIO] = 0x4b, 106ebf0bd36SAmit Kucheria [RES_VDD1] = 0x55, 107ebf0bd36SAmit Kucheria [RES_VDD2] = 0x63, 108ebf0bd36SAmit Kucheria [RES_VUSB_1V5] = 0x71, 109ebf0bd36SAmit Kucheria [RES_VUSB_1V8] = 0x74, 110ebf0bd36SAmit Kucheria [RES_VUSB_3V1] = 0x77, 111ebf0bd36SAmit Kucheria [RES_VUSBCP] = 0x7a, 112ebf0bd36SAmit Kucheria [RES_REGEN] = 0x7f, 113ebf0bd36SAmit Kucheria [RES_NRES_PWRON] = 0x82, 114ebf0bd36SAmit Kucheria [RES_CLKEN] = 0x85, 115ebf0bd36SAmit Kucheria [RES_SYSEN] = 0x88, 116ebf0bd36SAmit Kucheria [RES_HFCLKOUT] = 0x8b, 117ebf0bd36SAmit Kucheria [RES_32KCLKOUT] = 0x8e, 118ebf0bd36SAmit Kucheria [RES_RESET] = 0x91, 119ebf0bd36SAmit Kucheria [RES_Main_Ref] = 0x94, 120ebf0bd36SAmit Kucheria }; 121ebf0bd36SAmit Kucheria 122ebf0bd36SAmit Kucheria static int __init twl4030_write_script_byte(u8 address, u8 byte) 123ebf0bd36SAmit Kucheria { 124ebf0bd36SAmit Kucheria int err; 125ebf0bd36SAmit Kucheria 126ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, 127ebf0bd36SAmit Kucheria R_MEMORY_ADDRESS); 128ebf0bd36SAmit Kucheria if (err) 129ebf0bd36SAmit Kucheria goto out; 130ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, byte, 131ebf0bd36SAmit Kucheria R_MEMORY_DATA); 132ebf0bd36SAmit Kucheria out: 133ebf0bd36SAmit Kucheria return err; 134ebf0bd36SAmit Kucheria } 135ebf0bd36SAmit Kucheria 136ebf0bd36SAmit Kucheria static int __init twl4030_write_script_ins(u8 address, u16 pmb_message, 137ebf0bd36SAmit Kucheria u8 delay, u8 next) 138ebf0bd36SAmit Kucheria { 139ebf0bd36SAmit Kucheria int err; 140ebf0bd36SAmit Kucheria 141ebf0bd36SAmit Kucheria address *= 4; 142ebf0bd36SAmit Kucheria err = twl4030_write_script_byte(address++, pmb_message >> 8); 143ebf0bd36SAmit Kucheria if (err) 144ebf0bd36SAmit Kucheria goto out; 145ebf0bd36SAmit Kucheria err = twl4030_write_script_byte(address++, pmb_message & 0xff); 146ebf0bd36SAmit Kucheria if (err) 147ebf0bd36SAmit Kucheria goto out; 148ebf0bd36SAmit Kucheria err = twl4030_write_script_byte(address++, delay); 149ebf0bd36SAmit Kucheria if (err) 150ebf0bd36SAmit Kucheria goto out; 151ebf0bd36SAmit Kucheria err = twl4030_write_script_byte(address++, next); 152ebf0bd36SAmit Kucheria out: 153ebf0bd36SAmit Kucheria return err; 154ebf0bd36SAmit Kucheria } 155ebf0bd36SAmit Kucheria 156ebf0bd36SAmit Kucheria static int __init twl4030_write_script(u8 address, struct twl4030_ins *script, 157ebf0bd36SAmit Kucheria int len) 158ebf0bd36SAmit Kucheria { 159ebf0bd36SAmit Kucheria int err; 160ebf0bd36SAmit Kucheria 161ebf0bd36SAmit Kucheria for (; len; len--, address++, script++) { 162ebf0bd36SAmit Kucheria if (len == 1) { 163ebf0bd36SAmit Kucheria err = twl4030_write_script_ins(address, 164ebf0bd36SAmit Kucheria script->pmb_message, 165ebf0bd36SAmit Kucheria script->delay, 166ebf0bd36SAmit Kucheria END_OF_SCRIPT); 167ebf0bd36SAmit Kucheria if (err) 168ebf0bd36SAmit Kucheria break; 169ebf0bd36SAmit Kucheria } else { 170ebf0bd36SAmit Kucheria err = twl4030_write_script_ins(address, 171ebf0bd36SAmit Kucheria script->pmb_message, 172ebf0bd36SAmit Kucheria script->delay, 173ebf0bd36SAmit Kucheria address + 1); 174ebf0bd36SAmit Kucheria if (err) 175ebf0bd36SAmit Kucheria break; 176ebf0bd36SAmit Kucheria } 177ebf0bd36SAmit Kucheria } 178ebf0bd36SAmit Kucheria return err; 179ebf0bd36SAmit Kucheria } 180ebf0bd36SAmit Kucheria 181ebf0bd36SAmit Kucheria static int __init twl4030_config_wakeup3_sequence(u8 address) 182ebf0bd36SAmit Kucheria { 183ebf0bd36SAmit Kucheria int err; 184ebf0bd36SAmit Kucheria u8 data; 185ebf0bd36SAmit Kucheria 186ebf0bd36SAmit Kucheria /* Set SLEEP to ACTIVE SEQ address for P3 */ 187ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, 188ebf0bd36SAmit Kucheria R_SEQ_ADD_S2A3); 189ebf0bd36SAmit Kucheria if (err) 190ebf0bd36SAmit Kucheria goto out; 191ebf0bd36SAmit Kucheria 192ebf0bd36SAmit Kucheria /* P3 LVL_WAKEUP should be on LEVEL */ 193ebf0bd36SAmit Kucheria err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, 194ebf0bd36SAmit Kucheria R_P3_SW_EVENTS); 195ebf0bd36SAmit Kucheria if (err) 196ebf0bd36SAmit Kucheria goto out; 197ebf0bd36SAmit Kucheria data |= LVL_WAKEUP; 198ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data, 199ebf0bd36SAmit Kucheria R_P3_SW_EVENTS); 200ebf0bd36SAmit Kucheria out: 201ebf0bd36SAmit Kucheria if (err) 202ebf0bd36SAmit Kucheria pr_err("TWL4030 wakeup sequence for P3 config error\n"); 203ebf0bd36SAmit Kucheria return err; 204ebf0bd36SAmit Kucheria } 205ebf0bd36SAmit Kucheria 206ebf0bd36SAmit Kucheria static int __init twl4030_config_wakeup12_sequence(u8 address) 207ebf0bd36SAmit Kucheria { 208ebf0bd36SAmit Kucheria int err = 0; 209ebf0bd36SAmit Kucheria u8 data; 210ebf0bd36SAmit Kucheria 211ebf0bd36SAmit Kucheria /* Set SLEEP to ACTIVE SEQ address for P1 and P2 */ 212ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, 213ebf0bd36SAmit Kucheria R_SEQ_ADD_S2A12); 214ebf0bd36SAmit Kucheria if (err) 215ebf0bd36SAmit Kucheria goto out; 216ebf0bd36SAmit Kucheria 217ebf0bd36SAmit Kucheria /* P1/P2 LVL_WAKEUP should be on LEVEL */ 218ebf0bd36SAmit Kucheria err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, 219ebf0bd36SAmit Kucheria R_P1_SW_EVENTS); 220ebf0bd36SAmit Kucheria if (err) 221ebf0bd36SAmit Kucheria goto out; 222ebf0bd36SAmit Kucheria 223ebf0bd36SAmit Kucheria data |= LVL_WAKEUP; 224ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data, 225ebf0bd36SAmit Kucheria R_P1_SW_EVENTS); 226ebf0bd36SAmit Kucheria if (err) 227ebf0bd36SAmit Kucheria goto out; 228ebf0bd36SAmit Kucheria 229ebf0bd36SAmit Kucheria err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, 230ebf0bd36SAmit Kucheria R_P2_SW_EVENTS); 231ebf0bd36SAmit Kucheria if (err) 232ebf0bd36SAmit Kucheria goto out; 233ebf0bd36SAmit Kucheria 234ebf0bd36SAmit Kucheria data |= LVL_WAKEUP; 235ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data, 236ebf0bd36SAmit Kucheria R_P2_SW_EVENTS); 237ebf0bd36SAmit Kucheria if (err) 238ebf0bd36SAmit Kucheria goto out; 239ebf0bd36SAmit Kucheria 240ebf0bd36SAmit Kucheria if (machine_is_omap_3430sdp() || machine_is_omap_ldp()) { 241ebf0bd36SAmit Kucheria /* Disabling AC charger effect on sleep-active transitions */ 242ebf0bd36SAmit Kucheria err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, 243ebf0bd36SAmit Kucheria R_CFG_P1_TRANSITION); 244ebf0bd36SAmit Kucheria if (err) 245ebf0bd36SAmit Kucheria goto out; 246ebf0bd36SAmit Kucheria data &= ~(1<<1); 247ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data , 248ebf0bd36SAmit Kucheria R_CFG_P1_TRANSITION); 249ebf0bd36SAmit Kucheria if (err) 250ebf0bd36SAmit Kucheria goto out; 251ebf0bd36SAmit Kucheria } 252ebf0bd36SAmit Kucheria 253ebf0bd36SAmit Kucheria out: 254ebf0bd36SAmit Kucheria if (err) 255ebf0bd36SAmit Kucheria pr_err("TWL4030 wakeup sequence for P1 and P2" \ 256ebf0bd36SAmit Kucheria "config error\n"); 257ebf0bd36SAmit Kucheria return err; 258ebf0bd36SAmit Kucheria } 259ebf0bd36SAmit Kucheria 260ebf0bd36SAmit Kucheria static int __init twl4030_config_sleep_sequence(u8 address) 261ebf0bd36SAmit Kucheria { 262ebf0bd36SAmit Kucheria int err; 263ebf0bd36SAmit Kucheria 264ebf0bd36SAmit Kucheria /* Set ACTIVE to SLEEP SEQ address in T2 memory*/ 265ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, 266ebf0bd36SAmit Kucheria R_SEQ_ADD_A2S); 267ebf0bd36SAmit Kucheria 268ebf0bd36SAmit Kucheria if (err) 269ebf0bd36SAmit Kucheria pr_err("TWL4030 sleep sequence config error\n"); 270ebf0bd36SAmit Kucheria 271ebf0bd36SAmit Kucheria return err; 272ebf0bd36SAmit Kucheria } 273ebf0bd36SAmit Kucheria 274ebf0bd36SAmit Kucheria static int __init twl4030_config_warmreset_sequence(u8 address) 275ebf0bd36SAmit Kucheria { 276ebf0bd36SAmit Kucheria int err; 277ebf0bd36SAmit Kucheria u8 rd_data; 278ebf0bd36SAmit Kucheria 279ebf0bd36SAmit Kucheria /* Set WARM RESET SEQ address for P1 */ 280ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, 281ebf0bd36SAmit Kucheria R_SEQ_ADD_WARM); 282ebf0bd36SAmit Kucheria if (err) 283ebf0bd36SAmit Kucheria goto out; 284ebf0bd36SAmit Kucheria 285ebf0bd36SAmit Kucheria /* P1/P2/P3 enable WARMRESET */ 286ebf0bd36SAmit Kucheria err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, 287ebf0bd36SAmit Kucheria R_P1_SW_EVENTS); 288ebf0bd36SAmit Kucheria if (err) 289ebf0bd36SAmit Kucheria goto out; 290ebf0bd36SAmit Kucheria 291ebf0bd36SAmit Kucheria rd_data |= ENABLE_WARMRESET; 292ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, 293ebf0bd36SAmit Kucheria R_P1_SW_EVENTS); 294ebf0bd36SAmit Kucheria if (err) 295ebf0bd36SAmit Kucheria goto out; 296ebf0bd36SAmit Kucheria 297ebf0bd36SAmit Kucheria err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, 298ebf0bd36SAmit Kucheria R_P2_SW_EVENTS); 299ebf0bd36SAmit Kucheria if (err) 300ebf0bd36SAmit Kucheria goto out; 301ebf0bd36SAmit Kucheria 302ebf0bd36SAmit Kucheria rd_data |= ENABLE_WARMRESET; 303ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, 304ebf0bd36SAmit Kucheria R_P2_SW_EVENTS); 305ebf0bd36SAmit Kucheria if (err) 306ebf0bd36SAmit Kucheria goto out; 307ebf0bd36SAmit Kucheria 308ebf0bd36SAmit Kucheria err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, 309ebf0bd36SAmit Kucheria R_P3_SW_EVENTS); 310ebf0bd36SAmit Kucheria if (err) 311ebf0bd36SAmit Kucheria goto out; 312ebf0bd36SAmit Kucheria 313ebf0bd36SAmit Kucheria rd_data |= ENABLE_WARMRESET; 314ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, 315ebf0bd36SAmit Kucheria R_P3_SW_EVENTS); 316ebf0bd36SAmit Kucheria out: 317ebf0bd36SAmit Kucheria if (err) 318ebf0bd36SAmit Kucheria pr_err("TWL4030 warmreset seq config error\n"); 319ebf0bd36SAmit Kucheria return err; 320ebf0bd36SAmit Kucheria } 321ebf0bd36SAmit Kucheria 322ebf0bd36SAmit Kucheria static int __init twl4030_configure_resource(struct twl4030_resconfig *rconfig) 323ebf0bd36SAmit Kucheria { 324ebf0bd36SAmit Kucheria int rconfig_addr; 325ebf0bd36SAmit Kucheria int err; 326ebf0bd36SAmit Kucheria u8 type; 327ebf0bd36SAmit Kucheria u8 grp; 328ebf0bd36SAmit Kucheria 329ebf0bd36SAmit Kucheria if (rconfig->resource > TOTAL_RESOURCES) { 330ebf0bd36SAmit Kucheria pr_err("TWL4030 Resource %d does not exist\n", 331ebf0bd36SAmit Kucheria rconfig->resource); 332ebf0bd36SAmit Kucheria return -EINVAL; 333ebf0bd36SAmit Kucheria } 334ebf0bd36SAmit Kucheria 335ebf0bd36SAmit Kucheria rconfig_addr = res_config_addrs[rconfig->resource]; 336ebf0bd36SAmit Kucheria 337ebf0bd36SAmit Kucheria /* Set resource group */ 338ebf0bd36SAmit Kucheria err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &grp, 339e97d1546SAmit Kucheria rconfig_addr + DEV_GRP_OFFSET); 340ebf0bd36SAmit Kucheria if (err) { 341ebf0bd36SAmit Kucheria pr_err("TWL4030 Resource %d group could not be read\n", 342ebf0bd36SAmit Kucheria rconfig->resource); 343ebf0bd36SAmit Kucheria return err; 344ebf0bd36SAmit Kucheria } 345ebf0bd36SAmit Kucheria 346ebf0bd36SAmit Kucheria if (rconfig->devgroup >= 0) { 347e97d1546SAmit Kucheria grp &= ~DEV_GRP_MASK; 348e97d1546SAmit Kucheria grp |= rconfig->devgroup << DEV_GRP_SHIFT; 349ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 350e97d1546SAmit Kucheria grp, rconfig_addr + DEV_GRP_OFFSET); 351ebf0bd36SAmit Kucheria if (err < 0) { 352ebf0bd36SAmit Kucheria pr_err("TWL4030 failed to program devgroup\n"); 353ebf0bd36SAmit Kucheria return err; 354ebf0bd36SAmit Kucheria } 355ebf0bd36SAmit Kucheria } 356ebf0bd36SAmit Kucheria 357ebf0bd36SAmit Kucheria /* Set resource types */ 358ebf0bd36SAmit Kucheria err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &type, 359ebf0bd36SAmit Kucheria rconfig_addr + TYPE_OFFSET); 360ebf0bd36SAmit Kucheria if (err < 0) { 361ebf0bd36SAmit Kucheria pr_err("TWL4030 Resource %d type could not be read\n", 362ebf0bd36SAmit Kucheria rconfig->resource); 363ebf0bd36SAmit Kucheria return err; 364ebf0bd36SAmit Kucheria } 365ebf0bd36SAmit Kucheria 366ebf0bd36SAmit Kucheria if (rconfig->type >= 0) { 367ebf0bd36SAmit Kucheria type &= ~TYPE_MASK; 368ebf0bd36SAmit Kucheria type |= rconfig->type << TYPE_SHIFT; 369ebf0bd36SAmit Kucheria } 370ebf0bd36SAmit Kucheria 371ebf0bd36SAmit Kucheria if (rconfig->type2 >= 0) { 372ebf0bd36SAmit Kucheria type &= ~TYPE2_MASK; 373ebf0bd36SAmit Kucheria type |= rconfig->type2 << TYPE2_SHIFT; 374ebf0bd36SAmit Kucheria } 375ebf0bd36SAmit Kucheria 376ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 377ebf0bd36SAmit Kucheria type, rconfig_addr + TYPE_OFFSET); 378ebf0bd36SAmit Kucheria if (err < 0) { 379ebf0bd36SAmit Kucheria pr_err("TWL4030 failed to program resource type\n"); 380ebf0bd36SAmit Kucheria return err; 381ebf0bd36SAmit Kucheria } 382ebf0bd36SAmit Kucheria 383ebf0bd36SAmit Kucheria return 0; 384ebf0bd36SAmit Kucheria } 385ebf0bd36SAmit Kucheria 386ebf0bd36SAmit Kucheria static int __init load_twl4030_script(struct twl4030_script *tscript, 387ebf0bd36SAmit Kucheria u8 address) 388ebf0bd36SAmit Kucheria { 389ebf0bd36SAmit Kucheria int err; 39075a74565SAmit Kucheria static int order; 391ebf0bd36SAmit Kucheria 392ebf0bd36SAmit Kucheria /* Make sure the script isn't going beyond last valid address (0x3f) */ 393ebf0bd36SAmit Kucheria if ((address + tscript->size) > END_OF_SCRIPT) { 394ebf0bd36SAmit Kucheria pr_err("TWL4030 scripts too big error\n"); 395ebf0bd36SAmit Kucheria return -EINVAL; 396ebf0bd36SAmit Kucheria } 397ebf0bd36SAmit Kucheria 398ebf0bd36SAmit Kucheria err = twl4030_write_script(address, tscript->script, tscript->size); 399ebf0bd36SAmit Kucheria if (err) 400ebf0bd36SAmit Kucheria goto out; 401ebf0bd36SAmit Kucheria 402ebf0bd36SAmit Kucheria if (tscript->flags & TWL4030_WRST_SCRIPT) { 403ebf0bd36SAmit Kucheria err = twl4030_config_warmreset_sequence(address); 404ebf0bd36SAmit Kucheria if (err) 405ebf0bd36SAmit Kucheria goto out; 406ebf0bd36SAmit Kucheria } 407ebf0bd36SAmit Kucheria if (tscript->flags & TWL4030_WAKEUP12_SCRIPT) { 408ebf0bd36SAmit Kucheria err = twl4030_config_wakeup12_sequence(address); 409ebf0bd36SAmit Kucheria if (err) 410ebf0bd36SAmit Kucheria goto out; 41175a74565SAmit Kucheria order = 1; 412ebf0bd36SAmit Kucheria } 413ebf0bd36SAmit Kucheria if (tscript->flags & TWL4030_WAKEUP3_SCRIPT) { 414ebf0bd36SAmit Kucheria err = twl4030_config_wakeup3_sequence(address); 415ebf0bd36SAmit Kucheria if (err) 416ebf0bd36SAmit Kucheria goto out; 417ebf0bd36SAmit Kucheria } 418ebf0bd36SAmit Kucheria if (tscript->flags & TWL4030_SLEEP_SCRIPT) 41975a74565SAmit Kucheria if (order) 42075a74565SAmit Kucheria pr_warning("TWL4030: Bad order of scripts (sleep "\ 42175a74565SAmit Kucheria "script before wakeup) Leads to boot"\ 42275a74565SAmit Kucheria "failure on some boards\n"); 423ebf0bd36SAmit Kucheria err = twl4030_config_sleep_sequence(address); 424ebf0bd36SAmit Kucheria out: 425ebf0bd36SAmit Kucheria return err; 426ebf0bd36SAmit Kucheria } 427ebf0bd36SAmit Kucheria 428ebf0bd36SAmit Kucheria void __init twl4030_power_init(struct twl4030_power_data *twl4030_scripts) 429ebf0bd36SAmit Kucheria { 430ebf0bd36SAmit Kucheria int err = 0; 431ebf0bd36SAmit Kucheria int i; 432ebf0bd36SAmit Kucheria struct twl4030_resconfig *resconfig; 433ebf0bd36SAmit Kucheria u8 address = twl4030_start_script_address; 434ebf0bd36SAmit Kucheria 435c8269331SSamuel Ortiz err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, R_KEY_1, 436ebf0bd36SAmit Kucheria R_PROTECT_KEY); 437ebf0bd36SAmit Kucheria if (err) 438ebf0bd36SAmit Kucheria goto unlock; 439ebf0bd36SAmit Kucheria 440c8269331SSamuel Ortiz err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, R_KEY_2, 441ebf0bd36SAmit Kucheria R_PROTECT_KEY); 442ebf0bd36SAmit Kucheria if (err) 443ebf0bd36SAmit Kucheria goto unlock; 444ebf0bd36SAmit Kucheria 445ebf0bd36SAmit Kucheria for (i = 0; i < twl4030_scripts->num; i++) { 446ebf0bd36SAmit Kucheria err = load_twl4030_script(twl4030_scripts->scripts[i], address); 447ebf0bd36SAmit Kucheria if (err) 448ebf0bd36SAmit Kucheria goto load; 449ebf0bd36SAmit Kucheria address += twl4030_scripts->scripts[i]->size; 450ebf0bd36SAmit Kucheria } 451ebf0bd36SAmit Kucheria 452ebf0bd36SAmit Kucheria resconfig = twl4030_scripts->resource_config; 453ebf0bd36SAmit Kucheria if (resconfig) { 454ebf0bd36SAmit Kucheria while (resconfig->resource) { 455ebf0bd36SAmit Kucheria err = twl4030_configure_resource(resconfig); 456ebf0bd36SAmit Kucheria if (err) 457ebf0bd36SAmit Kucheria goto resource; 458ebf0bd36SAmit Kucheria resconfig++; 459ebf0bd36SAmit Kucheria 460ebf0bd36SAmit Kucheria } 461ebf0bd36SAmit Kucheria } 462ebf0bd36SAmit Kucheria 463ebf0bd36SAmit Kucheria err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, R_PROTECT_KEY); 464ebf0bd36SAmit Kucheria if (err) 465ebf0bd36SAmit Kucheria pr_err("TWL4030 Unable to relock registers\n"); 466ebf0bd36SAmit Kucheria return; 467ebf0bd36SAmit Kucheria 468ebf0bd36SAmit Kucheria unlock: 469ebf0bd36SAmit Kucheria if (err) 470ebf0bd36SAmit Kucheria pr_err("TWL4030 Unable to unlock registers\n"); 471ebf0bd36SAmit Kucheria return; 472ebf0bd36SAmit Kucheria load: 473ebf0bd36SAmit Kucheria if (err) 474ebf0bd36SAmit Kucheria pr_err("TWL4030 failed to load scripts\n"); 475ebf0bd36SAmit Kucheria return; 476ebf0bd36SAmit Kucheria resource: 477ebf0bd36SAmit Kucheria if (err) 478ebf0bd36SAmit Kucheria pr_err("TWL4030 failed to configure resource\n"); 479ebf0bd36SAmit Kucheria return; 480ebf0bd36SAmit Kucheria } 481