Lines Matching +full:omap4 +full:- +full:rng
1 // SPDX-License-Identifier: GPL-2.0
3 * ti-sysc.c - Texas Instruments sysc interconnect target driver
8 * Copyright (C) 2017-2024 Texas Instruments Incorporated - https://www.ti.com/
13 * Copyright (C) 2009-2011 Nokia Corporation
14 * Copyright (C) 2011-2021 Texas Instruments Incorporated - https://www.ti.com/
35 #include <linux/platform_data/ti-sysc.h>
37 #include <dt-bindings/bus/ti-sysc.h>
107 * struct sysc - TI sysc interconnect target module registers and capabilities
113 * @mdata: ti-sysc to hwmod translation data for a module
130 * @pre_reset_quirk: module specific pre-reset quirk
131 * @post_reset_quirk: module specific post-reset quirk
176 if (ddata->cfg.quirks & SYSC_QUIRK_16BIT) { in sysc_write()
177 writew_relaxed(value & 0xffff, ddata->module_va + offset); in sysc_write()
180 if (ddata->offsets[SYSC_REVISION] >= 0 && in sysc_write()
181 offset == ddata->offsets[SYSC_REVISION]) { in sysc_write()
184 writew_relaxed(hi, ddata->module_va + offset + 4); in sysc_write()
190 writel_relaxed(value, ddata->module_va + offset); in sysc_write()
195 if (ddata->cfg.quirks & SYSC_QUIRK_16BIT) { in sysc_read()
198 val = readw_relaxed(ddata->module_va + offset); in sysc_read()
201 if (ddata->offsets[SYSC_REVISION] >= 0 && in sysc_read()
202 offset == ddata->offsets[SYSC_REVISION]) { in sysc_read()
203 u16 tmp = readw_relaxed(ddata->module_va + offset + 4); in sysc_read()
211 return readl_relaxed(ddata->module_va + offset); in sysc_read()
216 return !!(ddata->cfg.quirks & SYSC_QUIRK_OPT_CLKS_NEEDED); in sysc_opt_clks_needed()
221 int offset = ddata->offsets[SYSC_REVISION]; in sysc_read_revision()
231 int offset = ddata->offsets[SYSC_SYSCONFIG]; in sysc_read_sysconfig()
241 int offset = ddata->offsets[SYSC_SYSSTATUS]; in sysc_read_sysstatus()
254 if (ddata->cfg.quirks & SYSS_QUIRK_RESETDONE_INVERTED) in sysc_poll_reset_sysstatus()
257 syss_done = ddata->cfg.syss_mask; in sysc_poll_reset_sysstatus()
261 rstval, (rstval & ddata->cfg.syss_mask) == in sysc_poll_reset_sysstatus()
265 while (retries--) { in sysc_poll_reset_sysstatus()
267 if ((rstval & ddata->cfg.syss_mask) == syss_done) in sysc_poll_reset_sysstatus()
271 error = -ETIMEDOUT; in sysc_poll_reset_sysstatus()
282 sysc_mask = BIT(ddata->cap->regbits->srst_shift); in sysc_poll_reset_sysconfig()
290 while (retries--) { in sysc_poll_reset_sysconfig()
296 error = -ETIMEDOUT; in sysc_poll_reset_sysconfig()
307 if (ddata->cap->regbits->srst_shift < 0) in sysc_wait_softreset()
310 syss_offset = ddata->offsets[SYSC_SYSSTATUS]; in sysc_wait_softreset()
314 else if (ddata->cfg.quirks & SYSC_QUIRK_RESET_STATUS) in sysc_wait_softreset()
324 struct device_node *np = ddata->dev->of_node; in sysc_add_named_clock_from_child()
345 return -ENODEV; in sysc_add_named_clock_from_child()
347 clock = devm_get_clk_from_child(ddata->dev, child, name); in sysc_add_named_clock_from_child()
358 return -ENOMEM; in sysc_add_named_clock_from_child()
360 cl->con_id = n; in sysc_add_named_clock_from_child()
361 cl->dev_id = dev_name(ddata->dev); in sysc_add_named_clock_from_child()
362 cl->clk = clock; in sysc_add_named_clock_from_child()
375 if (ddata->nr_clocks < SYSC_OPTFCK0) in sysc_init_ext_opt_clock()
378 index = ddata->nr_clocks; in sysc_init_ext_opt_clock()
389 ddata->clock_roles[index] = optfck_name; in sysc_init_ext_opt_clock()
390 ddata->nr_clocks++; in sysc_init_ext_opt_clock()
397 int error, i, index = -ENODEV; in sysc_get_one_clock()
406 if (!ddata->clocks[i]) { in sysc_get_one_clock()
414 dev_err(ddata->dev, "clock %s not added\n", name); in sysc_get_one_clock()
418 ddata->clocks[index] = devm_clk_get(ddata->dev, name); in sysc_get_one_clock()
419 if (IS_ERR(ddata->clocks[index])) { in sysc_get_one_clock()
420 dev_err(ddata->dev, "clock get error for %s: %li\n", in sysc_get_one_clock()
421 name, PTR_ERR(ddata->clocks[index])); in sysc_get_one_clock()
423 return PTR_ERR(ddata->clocks[index]); in sysc_get_one_clock()
426 error = clk_prepare(ddata->clocks[index]); in sysc_get_one_clock()
428 dev_err(ddata->dev, "clock prepare error for %s: %i\n", in sysc_get_one_clock()
439 struct device_node *np = ddata->dev->of_node; in sysc_get_clocks()
444 ddata->clock_roles = devm_kcalloc(ddata->dev, in sysc_get_clocks()
446 sizeof(*ddata->clock_roles), in sysc_get_clocks()
448 if (!ddata->clock_roles) in sysc_get_clocks()
449 return -ENOMEM; in sysc_get_clocks()
451 of_property_for_each_string(np, "clock-names", prop, name) { in sysc_get_clocks()
456 ddata->clock_roles[ddata->nr_clocks] = name; in sysc_get_clocks()
457 ddata->nr_clocks++; in sysc_get_clocks()
460 if (ddata->nr_clocks < 1) in sysc_get_clocks()
463 if ((ddata->cfg.quirks & SYSC_QUIRK_EXT_OPT_CLOCK)) { in sysc_get_clocks()
469 if (ddata->nr_clocks > SYSC_MAX_CLOCKS) { in sysc_get_clocks()
470 dev_err(ddata->dev, "too many clocks for %pOF\n", np); in sysc_get_clocks()
472 return -EINVAL; in sysc_get_clocks()
476 dev_err(ddata->dev, "max one fck and ick for %pOF\n", np); in sysc_get_clocks()
478 return -EINVAL; in sysc_get_clocks()
483 ddata->nr_clocks++; in sysc_get_clocks()
485 ddata->nr_clocks++; in sysc_get_clocks()
487 ddata->clocks = devm_kcalloc(ddata->dev, in sysc_get_clocks()
488 ddata->nr_clocks, sizeof(*ddata->clocks), in sysc_get_clocks()
490 if (!ddata->clocks) in sysc_get_clocks()
491 return -ENOMEM; in sysc_get_clocks()
494 const char *name = ddata->clock_roles[i]; in sysc_get_clocks()
512 if (!ddata->clocks) in sysc_enable_main_clocks()
516 clock = ddata->clocks[i]; in sysc_enable_main_clocks()
530 for (i--; i >= 0; i--) { in sysc_enable_main_clocks()
531 clock = ddata->clocks[i]; in sysc_enable_main_clocks()
548 if (!ddata->clocks) in sysc_disable_main_clocks()
552 clock = ddata->clocks[i]; in sysc_disable_main_clocks()
565 if (!ddata->clocks || ddata->nr_clocks < SYSC_OPTFCK0 + 1) in sysc_enable_opt_clocks()
569 clock = ddata->clocks[i]; in sysc_enable_opt_clocks()
583 for (i--; i >= 0; i--) { in sysc_enable_opt_clocks()
584 clock = ddata->clocks[i]; in sysc_enable_opt_clocks()
599 if (!ddata->clocks || ddata->nr_clocks < SYSC_OPTFCK0 + 1) in sysc_disable_opt_clocks()
603 clock = ddata->clocks[i]; in sysc_disable_opt_clocks()
617 if (ddata->legacy_mode || (ddata->cfg.quirks & SYSC_QUIRK_CLKDM_NOAUTO)) in sysc_clkdm_deny_idle()
620 pdata = dev_get_platdata(ddata->dev); in sysc_clkdm_deny_idle()
621 if (pdata && pdata->clkdm_deny_idle) in sysc_clkdm_deny_idle()
622 pdata->clkdm_deny_idle(ddata->dev, &ddata->cookie); in sysc_clkdm_deny_idle()
629 if (ddata->legacy_mode || (ddata->cfg.quirks & SYSC_QUIRK_CLKDM_NOAUTO)) in sysc_clkdm_allow_idle()
632 pdata = dev_get_platdata(ddata->dev); in sysc_clkdm_allow_idle()
633 if (pdata && pdata->clkdm_allow_idle) in sysc_clkdm_allow_idle()
634 pdata->clkdm_allow_idle(ddata->dev, &ddata->cookie); in sysc_clkdm_allow_idle()
638 * sysc_init_resets - init rstctrl reset line if configured
645 ddata->rsts = in sysc_init_resets()
646 devm_reset_control_get_optional_shared(ddata->dev, "rstctrl"); in sysc_init_resets()
648 return PTR_ERR_OR_ZERO(ddata->rsts); in sysc_init_resets()
652 * sysc_parse_and_check_child_range - parses module IO region from ranges
662 struct device_node *np = ddata->dev->of_node; in sysc_parse_and_check_child_range()
672 ddata->module_pa = range.cpu_addr; in sysc_parse_and_check_child_range()
673 ddata->module_size = range.size; in sysc_parse_and_check_child_range()
697 uart = of_get_property(np, "stdout-path", NULL); in sysc_init_stdout_path()
710 stdout_path = ERR_PTR(-ENODEV); in sysc_init_stdout_path()
720 ddata->cfg.quirks |= SYSC_QUIRK_NO_IDLE_ON_INIT | in sysc_check_quirk_stdout()
725 * sysc_check_one_child - check child configuration
740 dev_warn(ddata->dev, "really a child ti,hwmods property?"); in sysc_check_one_child()
750 for_each_child_of_node(ddata->dev->of_node, child) in sysc_check_children()
755 * So far only I2C uses 16-bit read access with clockactivity with revision
763 ddata->cfg.quirks |= SYSC_QUIRK_16BIT | SYSC_QUIRK_USE_CLOCKACT; in sysc_check_quirk_16bit()
767 * sysc_parse_one - parses the interconnect target module registers
783 return -EINVAL; in sysc_parse_one()
786 res = platform_get_resource_byname(to_platform_device(ddata->dev), in sysc_parse_one()
789 ddata->offsets[reg] = -ENODEV; in sysc_parse_one()
794 ddata->offsets[reg] = res->start - ddata->module_pa; in sysc_parse_one()
815 * sysc_check_registers - check for misconfigured register overlaps
823 if (ddata->offsets[i] < 0) in sysc_check_registers()
826 if (ddata->offsets[i] > (ddata->module_size - 4)) { in sysc_check_registers()
827 dev_err(ddata->dev, "register outside module range"); in sysc_check_registers()
829 return -EINVAL; in sysc_check_registers()
833 if (ddata->offsets[j] < 0) in sysc_check_registers()
836 if (ddata->offsets[i] == ddata->offsets[j]) in sysc_check_registers()
843 dev_err(ddata->dev, "overlapping registers: (%i/%i)", in sysc_check_registers()
846 return -EINVAL; in sysc_check_registers()
853 * sysc_ioremap - ioremap register space for the interconnect target module
867 if (ddata->offsets[SYSC_REVISION] < 0 && in sysc_ioremap()
868 ddata->offsets[SYSC_SYSCONFIG] < 0 && in sysc_ioremap()
869 ddata->offsets[SYSC_SYSSTATUS] < 0) { in sysc_ioremap()
870 size = ddata->module_size; in sysc_ioremap()
872 size = max3(ddata->offsets[SYSC_REVISION], in sysc_ioremap()
873 ddata->offsets[SYSC_SYSCONFIG], in sysc_ioremap()
874 ddata->offsets[SYSC_SYSSTATUS]); in sysc_ioremap()
879 if ((size + sizeof(u32)) > ddata->module_size) in sysc_ioremap()
880 size = ddata->module_size; in sysc_ioremap()
883 ddata->module_va = devm_ioremap(ddata->dev, in sysc_ioremap()
884 ddata->module_pa, in sysc_ioremap()
886 if (!ddata->module_va) in sysc_ioremap()
887 return -EIO; in sysc_ioremap()
893 * sysc_map_and_check_registers - ioremap and check device registers
898 struct device_node *np = ddata->dev->of_node; in sysc_map_and_check_registers()
926 * sysc_show_rev - read and show interconnect target module revision
934 if (ddata->offsets[SYSC_REVISION] < 0) in sysc_show_rev()
937 len = sprintf(bufp, ":%08x", ddata->revision); in sysc_show_rev()
945 if (ddata->offsets[reg] < 0) in sysc_show_reg()
948 return sprintf(bufp, ":%x", ddata->offsets[reg]); in sysc_show_reg()
953 if (!ddata->name) in sysc_show_name()
956 return sprintf(bufp, ":%s", ddata->name); in sysc_show_name()
960 * sysc_show_registers - show information about interconnect target module
975 dev_dbg(ddata->dev, "%llx:%x%s\n", in sysc_show_registers()
976 ddata->module_pa, ddata->module_size, in sysc_show_registers()
981 * sysc_write_sysconfig - handle sysconfig quirks for register write
987 if (ddata->module_unlock_quirk) in sysc_write_sysconfig()
988 ddata->module_unlock_quirk(ddata); in sysc_write_sysconfig()
990 sysc_write(ddata, ddata->offsets[SYSC_SYSCONFIG], value); in sysc_write_sysconfig()
992 if (ddata->module_lock_quirk) in sysc_write_sysconfig()
993 ddata->module_lock_quirk(ddata); in sysc_write_sysconfig()
996 #define SYSC_IDLE_MASK (SYSC_NR_IDLEMODES - 1)
1013 if (ddata->cfg.quirks & SYSC_QUIRK_OPT_CLKS_IN_RESET) { in sysc_enable_module()
1016 dev_err(ddata->dev, in sysc_enable_module()
1026 if (!(ddata->cfg.quirks & SYSC_MODULE_QUIRK_ENA_RESETDONE)) { in sysc_enable_module()
1029 dev_warn(ddata->dev, "OCP softreset timed out\n"); in sysc_enable_module()
1031 if (ddata->cfg.quirks & SYSC_QUIRK_OPT_CLKS_IN_RESET) in sysc_enable_module()
1039 if (ddata->offsets[SYSC_SYSCONFIG] == -ENODEV) in sysc_enable_module()
1042 regbits = ddata->cap->regbits; in sysc_enable_module()
1043 reg = sysc_read(ddata, ddata->offsets[SYSC_SYSCONFIG]); in sysc_enable_module()
1050 if (regbits->clkact_shift >= 0 && in sysc_enable_module()
1051 (ddata->cfg.quirks & SYSC_QUIRK_USE_CLOCKACT)) in sysc_enable_module()
1052 reg |= SYSC_CLOCACT_ICK << regbits->clkact_shift; in sysc_enable_module()
1055 idlemodes = ddata->cfg.sidlemodes; in sysc_enable_module()
1056 if (!idlemodes || regbits->sidle_shift < 0) in sysc_enable_module()
1059 if (ddata->cfg.quirks & (SYSC_QUIRK_SWSUP_SIDLE | in sysc_enable_module()
1064 if (regbits->enwkup_shift >= 0 && in sysc_enable_module()
1065 ddata->cfg.sysc_val & BIT(regbits->enwkup_shift)) in sysc_enable_module()
1066 reg &= ~BIT(regbits->enwkup_shift); in sysc_enable_module()
1068 best_mode = fls(ddata->cfg.sidlemodes) - 1; in sysc_enable_module()
1071 return -EINVAL; in sysc_enable_module()
1075 if (regbits->enwkup_shift >= 0 && in sysc_enable_module()
1076 ddata->cfg.sysc_val & BIT(regbits->enwkup_shift)) in sysc_enable_module()
1077 reg |= BIT(regbits->enwkup_shift); in sysc_enable_module()
1080 reg &= ~(SYSC_IDLE_MASK << regbits->sidle_shift); in sysc_enable_module()
1081 reg |= best_mode << regbits->sidle_shift; in sysc_enable_module()
1086 idlemodes = ddata->cfg.midlemodes; in sysc_enable_module()
1087 if (!idlemodes || regbits->midle_shift < 0) in sysc_enable_module()
1090 best_mode = fls(ddata->cfg.midlemodes) - 1; in sysc_enable_module()
1093 error = -EINVAL; in sysc_enable_module()
1097 if (ddata->cfg.quirks & SYSC_QUIRK_SWSUP_MSTANDBY) in sysc_enable_module()
1100 reg &= ~(SYSC_IDLE_MASK << regbits->midle_shift); in sysc_enable_module()
1101 reg |= best_mode << regbits->midle_shift; in sysc_enable_module()
1106 if (regbits->autoidle_shift >= 0 && in sysc_enable_module()
1107 ddata->cfg.sysc_val & BIT(regbits->autoidle_shift)) { in sysc_enable_module()
1108 reg |= 1 << regbits->autoidle_shift; in sysc_enable_module()
1116 ddata->sysconfig = sysc_read(ddata, ddata->offsets[SYSC_SYSCONFIG]); in sysc_enable_module()
1118 if (ddata->module_enable_quirk) in sysc_enable_module()
1119 ddata->module_enable_quirk(ddata); in sysc_enable_module()
1133 return -EINVAL; in sysc_best_idle_mode()
1147 if (ddata->offsets[SYSC_SYSCONFIG] == -ENODEV) in sysc_disable_module()
1150 if (ddata->module_disable_quirk) in sysc_disable_module()
1151 ddata->module_disable_quirk(ddata); in sysc_disable_module()
1153 regbits = ddata->cap->regbits; in sysc_disable_module()
1154 reg = sysc_read(ddata, ddata->offsets[SYSC_SYSCONFIG]); in sysc_disable_module()
1157 idlemodes = ddata->cfg.midlemodes; in sysc_disable_module()
1158 if (!idlemodes || regbits->midle_shift < 0) in sysc_disable_module()
1167 if (ddata->cfg.quirks & (SYSC_QUIRK_SWSUP_MSTANDBY) || in sysc_disable_module()
1168 ddata->cfg.quirks & (SYSC_QUIRK_FORCE_MSTANDBY)) in sysc_disable_module()
1171 reg &= ~(SYSC_IDLE_MASK << regbits->midle_shift); in sysc_disable_module()
1172 reg |= best_mode << regbits->midle_shift; in sysc_disable_module()
1177 idlemodes = ddata->cfg.sidlemodes; in sysc_disable_module()
1178 if (!idlemodes || regbits->sidle_shift < 0) { in sysc_disable_module()
1183 if (ddata->cfg.quirks & SYSC_QUIRK_SWSUP_SIDLE) { in sysc_disable_module()
1189 ret = -EINVAL; in sysc_disable_module()
1194 if (ddata->cfg.quirks & SYSC_QUIRK_SWSUP_SIDLE_ACT) { in sysc_disable_module()
1196 if (regbits->enwkup_shift >= 0 && in sysc_disable_module()
1197 ddata->cfg.sysc_val & BIT(regbits->enwkup_shift)) in sysc_disable_module()
1198 reg |= BIT(regbits->enwkup_shift); in sysc_disable_module()
1201 reg &= ~(SYSC_IDLE_MASK << regbits->sidle_shift); in sysc_disable_module()
1202 reg |= best_mode << regbits->sidle_shift; in sysc_disable_module()
1203 if (regbits->autoidle_shift >= 0 && in sysc_disable_module()
1204 ddata->cfg.sysc_val & BIT(regbits->autoidle_shift)) in sysc_disable_module()
1205 reg |= 1 << regbits->autoidle_shift; in sysc_disable_module()
1212 ddata->sysconfig = sysc_read(ddata, ddata->offsets[SYSC_SYSCONFIG]); in sysc_disable_module()
1223 pdata = dev_get_platdata(ddata->dev); in sysc_runtime_suspend_legacy()
1227 if (!pdata->idle_module) in sysc_runtime_suspend_legacy()
1228 return -ENODEV; in sysc_runtime_suspend_legacy()
1230 error = pdata->idle_module(dev, &ddata->cookie); in sysc_runtime_suspend_legacy()
1235 reset_control_assert(ddata->rsts); in sysc_runtime_suspend_legacy()
1246 pdata = dev_get_platdata(ddata->dev); in sysc_runtime_resume_legacy()
1250 if (!pdata->enable_module) in sysc_runtime_resume_legacy()
1251 return -ENODEV; in sysc_runtime_resume_legacy()
1253 error = pdata->enable_module(dev, &ddata->cookie); in sysc_runtime_resume_legacy()
1258 reset_control_deassert(ddata->rsts); in sysc_runtime_resume_legacy()
1270 if (!ddata->enabled) in sysc_runtime_suspend()
1275 if (ddata->legacy_mode) { in sysc_runtime_suspend()
1290 ddata->enabled = false; in sysc_runtime_suspend()
1295 reset_control_assert(ddata->rsts); in sysc_runtime_suspend()
1307 if (ddata->enabled) in sysc_runtime_resume()
1323 reset_control_deassert(ddata->rsts); in sysc_runtime_resume()
1325 if (ddata->legacy_mode) { in sysc_runtime_resume()
1335 ddata->enabled = true; in sysc_runtime_resume()
1364 if (!ddata->enabled) in sysc_check_context()
1365 return -ENODATA; in sysc_check_context()
1367 reg = sysc_read(ddata, ddata->offsets[SYSC_SYSCONFIG]); in sysc_check_context()
1368 if (reg == ddata->sysconfig) in sysc_check_context()
1371 return -EACCES; in sysc_check_context()
1376 struct device *dev = ddata->dev; in sysc_reinit_module()
1379 if (ddata->enabled) { in sysc_reinit_module()
1397 if (ddata->cfg.quirks & SYSC_QUIRK_RESET_ON_CTX_LOST) { in sysc_reinit_module()
1402 sysc_write_sysconfig(ddata, ddata->sysconfig); in sysc_reinit_module()
1422 if (ddata->cfg.quirks & SYSC_QUIRK_NO_IDLE) in sysc_noirq_suspend()
1425 if (!ddata->enabled) in sysc_noirq_suspend()
1428 ddata->needs_resume = 1; in sysc_noirq_suspend()
1440 if (ddata->cfg.quirks & SYSC_QUIRK_NO_IDLE) in sysc_noirq_resume()
1443 if (ddata->cfg.quirks & SYSC_QUIRK_REINIT_ON_RESUME) { in sysc_noirq_resume()
1444 error = sysc_reinit_module(ddata, ddata->needs_resume); in sysc_noirq_resume()
1447 } else if (ddata->needs_resume) { in sysc_noirq_resume()
1453 ddata->needs_resume = 0; in sysc_noirq_resume()
1492 SYSC_QUIRK("mcpdm", 0x40132000, 0, 0x10, -ENODEV, 0x50000800, 0xffffffff,
1497 SYSC_QUIRK("aess", 0, 0, 0x10, -ENODEV, 0x40000000, 0xffffffff,
1500 SYSC_QUIRK("dcan", 0x4ae3c000, 0x20, -ENODEV, -ENODEV, 0xa3170504, 0xffffffff,
1502 SYSC_QUIRK("dcan", 0x48480000, 0x20, -ENODEV, -ENODEV, 0xa3170504, 0xffffffff,
1506 SYSC_QUIRK("dss", 0x58000000, 0, -ENODEV, 0x14, 0x00000040, 0xffffffff,
1508 SYSC_QUIRK("dss", 0x58000000, 0, -ENODEV, 0x14, 0x00000061, 0xffffffff,
1510 SYSC_QUIRK("dwc3", 0x48880000, 0, 0x10, -ENODEV, 0x500a0200, 0xffffffff,
1512 SYSC_QUIRK("dwc3", 0x488c0000, 0, 0x10, -ENODEV, 0x500a0200, 0xffffffff,
1519 SYSC_QUIRK("hdmi", 0, 0, 0x10, -ENODEV, 0x50030200, 0xffffffff,
1533 SYSC_QUIRK("gpu", 0x50000000, 0x14, -ENODEV, -ENODEV, 0x00010201, 0xffffffff, 0),
1534 SYSC_QUIRK("gpu", 0x50000000, 0xfe00, 0xfe10, -ENODEV, 0x40000000 , 0xffffffff,
1536 SYSC_QUIRK("lcdc", 0, 0, 0x54, -ENODEV, 0x4f201000, 0xffffffff,
1538 SYSC_QUIRK("mcasp", 0, 0, 0x4, -ENODEV, 0x44306302, 0xffffffff,
1540 SYSC_QUIRK("rtc", 0, 0x74, 0x78, -ENODEV, 0x4eb01908, 0xffff00f0,
1542 SYSC_QUIRK("tptc", 0, 0, 0x10, -ENODEV, 0x40006c00, 0xffffefff,
1544 SYSC_QUIRK("tptc", 0, 0, -ENODEV, -ENODEV, 0x40007c00, 0xffffffff,
1546 SYSC_QUIRK("sata", 0, 0xfc, 0x1100, -ENODEV, 0x5e412000, 0xffffffff,
1552 /* Uarts on omap4 and later */
1561 SYSC_QUIRK("usb_host_hs", 0, 0, 0x10, -ENODEV, 0x50700101, 0xffffffff,
1572 SYSC_QUIRK("usb_otg_hs", 0, 0, 0x10, -ENODEV, 0x4ea2080d, 0xffffffff,
1578 SYSC_QUIRK("pruss", 0, 0x26000, 0x26004, -ENODEV, 0x47000000, 0xff000000,
1585 SYSC_QUIRK("adc", 0, 0, 0x10, -ENODEV, 0x47300001, 0xffffffff, 0),
1586 SYSC_QUIRK("atl", 0, 0, -ENODEV, -ENODEV, 0x0a070100, 0xffffffff, 0),
1587 SYSC_QUIRK("cm", 0, 0, -ENODEV, -ENODEV, 0x40000301, 0xffffffff, 0),
1588 SYSC_QUIRK("control", 0, 0, 0x10, -ENODEV, 0x40000900, 0xffffffff, 0),
1591 SYSC_QUIRK("dcan", 0, 0x20, -ENODEV, -ENODEV, 0xa3170504, 0xffffffff, 0),
1592 SYSC_QUIRK("dcan", 0, 0x20, -ENODEV, -ENODEV, 0x4edb1902, 0xffffffff, 0),
1596 SYSC_QUIRK("dmic", 0, 0, 0x10, -ENODEV, 0x50010000, 0xffffffff, 0),
1601 SYSC_QUIRK("dwc3", 0, 0, 0x10, -ENODEV, 0x500a0200, 0xffffffff, 0),
1605 SYSC_QUIRK("emif", 0, 0, -ENODEV, -ENODEV, 0x40441403, 0xffff0fff, 0),
1606 SYSC_QUIRK("emif", 0, 0, -ENODEV, -ENODEV, 0x50440500, 0xffffffff, 0),
1607 SYSC_QUIRK("epwmss", 0, 0, 0x4, -ENODEV, 0x47400001, 0xffffffff, 0),
1608 SYSC_QUIRK("gpu", 0, 0x1fc00, 0x1fc10, -ENODEV, 0, 0, 0),
1609 SYSC_QUIRK("gpu", 0, 0xfe00, 0xfe10, -ENODEV, 0x40000000 , 0xffffffff, 0),
1610 SYSC_QUIRK("hdmi", 0, 0, 0x10, -ENODEV, 0x50031d00, 0xffffffff, 0),
1612 SYSC_QUIRK("iss", 0, 0, 0x10, -ENODEV, 0x40000101, 0xffffffff, 0),
1614 SYSC_QUIRK("mcasp", 0, 0, 0x4, -ENODEV, 0x44307b02, 0xffffffff, 0),
1615 SYSC_QUIRK("mcbsp", 0, -ENODEV, 0x8c, -ENODEV, 0, 0, 0),
1616 SYSC_QUIRK("mcspi", 0, 0, 0x10, -ENODEV, 0x40300a0b, 0xffff00ff, 0),
1618 SYSC_QUIRK("mailbox", 0, 0, 0x10, -ENODEV, 0x00000400, 0xffffffff, 0),
1619 SYSC_QUIRK("m3", 0, 0, -ENODEV, -ENODEV, 0x5f580105, 0x0fff0f00, 0),
1621 SYSC_QUIRK("ocp2scp", 0, 0, -ENODEV, -ENODEV, 0x50060007, 0xffffffff, 0),
1622 SYSC_QUIRK("padconf", 0, 0, 0x10, -ENODEV, 0x4fff0800, 0xffffffff, 0),
1623 SYSC_QUIRK("padconf", 0, 0, -ENODEV, -ENODEV, 0x40001100, 0xffffffff, 0),
1624 SYSC_QUIRK("pcie", 0x51000000, -ENODEV, -ENODEV, -ENODEV, 0, 0, 0),
1625 SYSC_QUIRK("pcie", 0x51800000, -ENODEV, -ENODEV, -ENODEV, 0, 0, 0),
1626 SYSC_QUIRK("prcm", 0, 0, -ENODEV, -ENODEV, 0x40000100, 0xffffffff, 0),
1627 SYSC_QUIRK("prcm", 0, 0, -ENODEV, -ENODEV, 0x00004102, 0xffffffff, 0),
1628 SYSC_QUIRK("prcm", 0, 0, -ENODEV, -ENODEV, 0x40000400, 0xffffffff, 0),
1631 SYSC_QUIRK("scm", 0, 0, 0x10, -ENODEV, 0x40000900, 0xffffffff, 0),
1632 SYSC_QUIRK("scm", 0, 0, -ENODEV, -ENODEV, 0x4e8b0100, 0xffffffff, 0),
1633 SYSC_QUIRK("scm", 0, 0, -ENODEV, -ENODEV, 0x4f000100, 0xffffffff, 0),
1634 SYSC_QUIRK("scm", 0, 0, -ENODEV, -ENODEV, 0x40000900, 0xffffffff, 0),
1635 SYSC_QUIRK("scrm", 0, 0, -ENODEV, -ENODEV, 0x00000010, 0xffffffff, 0),
1636 SYSC_QUIRK("sdio", 0, 0, 0x10, -ENODEV, 0x40202301, 0xffff0ff0, 0),
1640 SYSC_QUIRK("slimbus", 0, 0, 0x10, -ENODEV, 0x40000902, 0xffffffff, 0),
1641 SYSC_QUIRK("slimbus", 0, 0, 0x10, -ENODEV, 0x40002903, 0xffffffff, 0),
1642 SYSC_QUIRK("smartreflex", 0, -ENODEV, 0x24, -ENODEV, 0x00000000, 0xffffffff, 0),
1643 SYSC_QUIRK("smartreflex", 0, -ENODEV, 0x38, -ENODEV, 0x00000000, 0xffffffff, 0),
1644 SYSC_QUIRK("spinlock", 0, 0, 0x10, -ENODEV, 0x50020000, 0xffffffff, 0),
1645 SYSC_QUIRK("rng", 0, 0x1fe0, 0x1fe4, -ENODEV, 0x00000020, 0xffffffff, 0),
1648 /* Some timers on omap4 and later */
1649 SYSC_QUIRK("timer", 0, 0, 0x10, -ENODEV, 0x50002100, 0xffffffff, 0),
1650 SYSC_QUIRK("timer", 0, 0, 0x10, -ENODEV, 0x4fff1301, 0xffff00ff, 0),
1651 SYSC_QUIRK("timer32k", 0, 0, 0x4, -ENODEV, 0x00000040, 0xffffffff, 0),
1652 SYSC_QUIRK("timer32k", 0, 0, 0x4, -ENODEV, 0x00000011, 0xffffffff, 0),
1653 SYSC_QUIRK("timer32k", 0, 0, 0x4, -ENODEV, 0x00000060, 0xffffffff, 0),
1654 SYSC_QUIRK("tpcc", 0, 0, -ENODEV, -ENODEV, 0x40014c00, 0xffffffff, 0),
1657 SYSC_QUIRK("venc", 0x58003000, 0, -ENODEV, -ENODEV, 0x00000002, 0xffffffff, 0),
1658 SYSC_QUIRK("vfpe", 0, 0, 0x104, -ENODEV, 0x4d001200, 0xffffffff, 0),
1674 if (!q->base) in sysc_init_early_quirks()
1677 if (q->base != ddata->module_pa) in sysc_init_early_quirks()
1680 if (q->rev_offset != ddata->offsets[SYSC_REVISION]) in sysc_init_early_quirks()
1683 if (q->sysc_offset != ddata->offsets[SYSC_SYSCONFIG]) in sysc_init_early_quirks()
1686 if (q->syss_offset != ddata->offsets[SYSC_SYSSTATUS]) in sysc_init_early_quirks()
1689 ddata->name = q->name; in sysc_init_early_quirks()
1690 ddata->cfg.quirks |= q->quirks; in sysc_init_early_quirks()
1703 if (q->base && q->base != ddata->module_pa) in sysc_init_revision_quirks()
1706 if (q->rev_offset != ddata->offsets[SYSC_REVISION]) in sysc_init_revision_quirks()
1709 if (q->sysc_offset != ddata->offsets[SYSC_SYSCONFIG]) in sysc_init_revision_quirks()
1712 if (q->syss_offset != ddata->offsets[SYSC_SYSSTATUS]) in sysc_init_revision_quirks()
1715 if (q->revision == ddata->revision || in sysc_init_revision_quirks()
1716 (q->revision & q->revision_mask) == in sysc_init_revision_quirks()
1717 (ddata->revision & q->revision_mask)) { in sysc_init_revision_quirks()
1718 ddata->name = q->name; in sysc_init_revision_quirks()
1719 ddata->cfg.quirks |= q->quirks; in sysc_init_revision_quirks()
1727 * dispc init rather than top-level DSS init.
1738 switch (sysc_soc->soc) { in sysc_quirk_dispc()
1760 devm_iounmap(ddata->dev, ddata->module_va); in sysc_quirk_dispc()
1761 ddata->module_va = devm_ioremap(ddata->dev, in sysc_quirk_dispc()
1762 ddata->module_pa, in sysc_quirk_dispc()
1763 ddata->module_size); in sysc_quirk_dispc()
1764 if (!ddata->module_va) in sysc_quirk_dispc()
1765 return -EIO; in sysc_quirk_dispc()
1829 error = readl_poll_timeout(ddata->module_va + dispc_offset + 0x18, in sysc_pre_reset_quirk_dss()
1832 dev_warn(ddata->dev, "%s: timed out %08x !+ %08x\n", in sysc_pre_reset_quirk_dss()
1835 if (sysc_soc->soc == SOC_3430 || sysc_soc->soc == SOC_AM35) { in sysc_pre_reset_quirk_dss()
1847 /* 1-wire needs module's internal clocks enabled for reset */
1872 /* I2C_CON, omap2/3 is different from omap4 and later */ in sysc_clk_quirk_i2c()
1873 if ((ddata->revision & 0xffffff00) == 0x001f0000) in sysc_clk_quirk_i2c()
1911 error = readl_poll_timeout_atomic(ddata->module_va + 0x44, val, in sysc_quirk_rtc()
1914 dev_warn(ddata->dev, "rtc busy timeout\n"); in sysc_quirk_rtc()
1931 /* OTG omap2430 glue layer up to omap4 needs OTG_FORCESTDBY configured */
1966 error = readl_poll_timeout(ddata->module_va + wps, val, in sysc_reset_done_quirk_wdt()
1970 dev_warn(ddata->dev, "wdt disable step1 failed\n"); in sysc_reset_done_quirk_wdt()
1973 error = readl_poll_timeout(ddata->module_va + wps, val, in sysc_reset_done_quirk_wdt()
1977 dev_warn(ddata->dev, "wdt disable step2 failed\n"); in sysc_reset_done_quirk_wdt()
1985 reg = sysc_read(ddata, ddata->offsets[SYSC_SYSCONFIG]); in sysc_module_disable_quirk_pruss()
1987 sysc_write(ddata, ddata->offsets[SYSC_SYSCONFIG], reg); in sysc_module_disable_quirk_pruss()
1994 reg = sysc_read(ddata, ddata->offsets[SYSC_SYSCONFIG]); in sysc_module_enable_quirk_pruss()
1997 * Clearing the SYSC_PRUSS_STANDBY_INIT bit - Updates OCP master in sysc_module_enable_quirk_pruss()
1999 * PRU-ICSS subsystem. in sysc_module_enable_quirk_pruss()
2002 sysc_write(ddata, ddata->offsets[SYSC_SYSCONFIG], reg); in sysc_module_enable_quirk_pruss()
2007 if (ddata->legacy_mode || !ddata->name) in sysc_init_module_quirks()
2010 if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_HDQ1W) { in sysc_init_module_quirks()
2011 ddata->pre_reset_quirk = sysc_pre_reset_quirk_hdq1w; in sysc_init_module_quirks()
2017 if (ddata->cfg.quirks & SYSC_QUIRK_GPMC_DEBUG) { in sysc_init_module_quirks()
2018 ddata->cfg.quirks |= SYSC_QUIRK_NO_RESET_ON_INIT; in sysc_init_module_quirks()
2024 if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_I2C) { in sysc_init_module_quirks()
2025 ddata->pre_reset_quirk = sysc_pre_reset_quirk_i2c; in sysc_init_module_quirks()
2026 ddata->post_reset_quirk = sysc_post_reset_quirk_i2c; in sysc_init_module_quirks()
2031 if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_AESS) in sysc_init_module_quirks()
2032 ddata->module_enable_quirk = sysc_module_enable_quirk_aess; in sysc_init_module_quirks()
2034 if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_DSS_RESET) in sysc_init_module_quirks()
2035 ddata->pre_reset_quirk = sysc_pre_reset_quirk_dss; in sysc_init_module_quirks()
2037 if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_RTC_UNLOCK) { in sysc_init_module_quirks()
2038 ddata->module_unlock_quirk = sysc_module_unlock_quirk_rtc; in sysc_init_module_quirks()
2039 ddata->module_lock_quirk = sysc_module_lock_quirk_rtc; in sysc_init_module_quirks()
2044 if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_OTG) { in sysc_init_module_quirks()
2045 ddata->module_enable_quirk = sysc_module_enable_quirk_otg; in sysc_init_module_quirks()
2046 ddata->module_disable_quirk = sysc_module_disable_quirk_otg; in sysc_init_module_quirks()
2049 if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_SGX) in sysc_init_module_quirks()
2050 ddata->module_enable_quirk = sysc_module_enable_quirk_sgx; in sysc_init_module_quirks()
2052 if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_WDT) { in sysc_init_module_quirks()
2053 ddata->reset_done_quirk = sysc_reset_done_quirk_wdt; in sysc_init_module_quirks()
2054 ddata->module_disable_quirk = sysc_reset_done_quirk_wdt; in sysc_init_module_quirks()
2057 if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_PRUSS) { in sysc_init_module_quirks()
2058 ddata->module_enable_quirk = sysc_module_enable_quirk_pruss; in sysc_init_module_quirks()
2059 ddata->module_disable_quirk = sysc_module_disable_quirk_pruss; in sysc_init_module_quirks()
2065 struct ti_sysc_platform_data *pdata = dev_get_platdata(ddata->dev); in sysc_clockdomain_init()
2069 if (!pdata || !pdata->init_clockdomain) in sysc_clockdomain_init()
2072 switch (ddata->nr_clocks) { in sysc_clockdomain_init()
2074 ick = ddata->clocks[SYSC_ICK]; in sysc_clockdomain_init()
2077 fck = ddata->clocks[SYSC_FCK]; in sysc_clockdomain_init()
2083 error = pdata->init_clockdomain(ddata->dev, fck, ick, &ddata->cookie); in sysc_clockdomain_init()
2084 if (!error || error == -ENODEV) in sysc_clockdomain_init()
2091 * Note that pdata->init_module() typically does a reset first. After
2092 * pdata->init_module() is done, PM runtime can be used for the interconnect
2097 struct ti_sysc_platform_data *pdata = dev_get_platdata(ddata->dev); in sysc_legacy_init()
2100 if (!pdata || !pdata->init_module) in sysc_legacy_init()
2103 error = pdata->init_module(ddata->dev, ddata->mdata, &ddata->cookie); in sysc_legacy_init()
2104 if (error == -EEXIST) in sysc_legacy_init()
2119 sysc_offset = ddata->offsets[SYSC_SYSCONFIG]; in sysc_reset()
2121 if (ddata->legacy_mode || in sysc_reset()
2122 ddata->cap->regbits->srst_shift < 0) in sysc_reset()
2125 sysc_mask = BIT(ddata->cap->regbits->srst_shift); in sysc_reset()
2127 if (ddata->pre_reset_quirk) in sysc_reset()
2128 ddata->pre_reset_quirk(ddata); in sysc_reset()
2140 if (ddata->cfg.srst_udelay) in sysc_reset()
2141 fsleep(ddata->cfg.srst_udelay); in sysc_reset()
2151 if (ddata->post_reset_quirk) in sysc_reset()
2152 ddata->post_reset_quirk(ddata); in sysc_reset()
2156 dev_warn(ddata->dev, "OCP softreset timed out\n"); in sysc_reset()
2158 if (ddata->reset_done_quirk) in sysc_reset()
2159 ddata->reset_done_quirk(ddata); in sysc_reset()
2192 if (!(ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT)) { in sysc_init_module()
2193 error = reset_control_deassert(ddata->rsts); in sysc_init_module()
2199 ddata->revision = sysc_read_revision(ddata); in sysc_init_module()
2203 if (ddata->legacy_mode) { in sysc_init_module()
2209 if (!ddata->legacy_mode) { in sysc_init_module()
2210 error = sysc_enable_module(ddata->dev); in sysc_init_module()
2215 if (!(ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT)) { in sysc_init_module()
2218 dev_err(ddata->dev, "Reset failed with %d\n", error); in sysc_init_module()
2220 if (error && !ddata->legacy_mode) in sysc_init_module()
2221 sysc_disable_module(ddata->dev); in sysc_init_module()
2228 /* No re-enable of clockdomain autoidle to prevent module autoidle */ in sysc_init_module()
2235 !(ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT)) in sysc_init_module()
2236 reset_control_assert(ddata->rsts); in sysc_init_module()
2243 struct device_node *np = ddata->dev->of_node; in sysc_init_sysc_mask()
2247 error = of_property_read_u32(np, "ti,sysc-mask", &val); in sysc_init_sysc_mask()
2251 ddata->cfg.sysc_val = val & ddata->cap->sysc_mask; in sysc_init_sysc_mask()
2259 struct device_node *np = ddata->dev->of_node; in sysc_init_idlemode()
2264 dev_err(ddata->dev, "invalid idlemode: %i\n", val); in sysc_init_idlemode()
2265 return -EINVAL; in sysc_init_idlemode()
2277 error = sysc_init_idlemode(ddata, &ddata->cfg.midlemodes, in sysc_init_idlemodes()
2278 "ti,sysc-midle"); in sysc_init_idlemodes()
2282 error = sysc_init_idlemode(ddata, &ddata->cfg.sidlemodes, in sysc_init_idlemodes()
2283 "ti,sysc-sidle"); in sysc_init_idlemodes()
2291 * Only some devices on omap4 and later have SYSCONFIG reset done
2299 struct device_node *np = ddata->dev->of_node; in sysc_init_syss_mask()
2303 error = of_property_read_u32(np, "ti,syss-mask", &val); in sysc_init_syss_mask()
2305 if ((ddata->cap->type == TI_SYSC_OMAP4 || in sysc_init_syss_mask()
2306 ddata->cap->type == TI_SYSC_OMAP4_TIMER) && in sysc_init_syss_mask()
2307 (ddata->cfg.sysc_val & SYSC_OMAP4_SOFTRESET)) in sysc_init_syss_mask()
2308 ddata->cfg.quirks |= SYSC_QUIRK_RESET_STATUS; in sysc_init_syss_mask()
2313 if (!(val & 1) && (ddata->cfg.sysc_val & SYSC_OMAP4_SOFTRESET)) in sysc_init_syss_mask()
2314 ddata->cfg.quirks |= SYSC_QUIRK_RESET_STATUS; in sysc_init_syss_mask()
2316 ddata->cfg.syss_mask = val; in sysc_init_syss_mask()
2338 error = -EEXIST; in sysc_child_add_named_clock()
2342 clk = clk_get(ddata->dev, name); in sysc_child_add_named_clock()
2344 return -ENODEV; in sysc_child_add_named_clock()
2348 error = -ENOMEM; in sysc_child_add_named_clock()
2360 for (i = 0; i < ddata->nr_clocks; i++) { in sysc_child_add_clocks()
2363 ddata->clock_roles[i]); in sysc_child_add_clocks()
2364 if (error && error != -EEXIST) { in sysc_child_add_clocks()
2365 dev_err(ddata->dev, "could not add child clock %s: %i\n", in sysc_child_add_clocks()
2366 ddata->clock_roles[i], error); in sysc_child_add_clocks()
2380 struct device *parent = dev->parent; in sysc_child_to_parent()
2382 if (!parent || parent->type != &sysc_device_type) in sysc_child_to_parent()
2399 if (!ddata->enabled) in sysc_child_runtime_suspend()
2402 return sysc_runtime_suspend(ddata->dev); in sysc_child_runtime_suspend()
2412 if (!ddata->enabled) { in sysc_child_runtime_resume()
2413 error = sysc_runtime_resume(ddata->dev); in sysc_child_runtime_resume()
2415 dev_err(ddata->dev, in sysc_child_runtime_resume()
2428 list_for_each_entry(module, &sysc_soc->restored_modules, node) { in sysc_reinit_modules()
2429 ddata = module->ddata; in sysc_reinit_modules()
2430 sysc_reinit_module(ddata, ddata->enabled); in sysc_reinit_modules()
2435 * sysc_context_notifier - optionally reset and restore module after idle
2465 * sysc_add_restored - optionally add reset and restore quirk hanlling
2476 restored_module->ddata = ddata; in sysc_add_restored()
2478 mutex_lock(&sysc_soc->list_lock); in sysc_add_restored()
2480 list_add(&restored_module->node, &sysc_soc->restored_modules); in sysc_add_restored()
2482 if (sysc_soc->nb.notifier_call) in sysc_add_restored()
2485 sysc_soc->nb.notifier_call = sysc_context_notifier; in sysc_add_restored()
2486 cpu_pm_register_notifier(&sysc_soc->nb); in sysc_add_restored()
2489 mutex_unlock(&sysc_soc->list_lock); in sysc_add_restored()
2527 { .name = "ti,no-idle-on-init",
2529 { .name = "ti,no-reset-on-init",
2531 { .name = "ti,no-idle",
2546 ddata->cfg.quirks |= sysc_dts_quirks[i].mask; in sysc_parse_dts_quirks()
2548 dev_warn(ddata->dev, in sysc_parse_dts_quirks()
2557 struct device_node *np = ddata->dev->of_node; in sysc_init_dts_quirks()
2561 ddata->legacy_mode = of_get_property(np, "ti,hwmods", NULL); in sysc_init_dts_quirks()
2564 error = of_property_read_u32(np, "ti,sysc-delay-us", &val); in sysc_init_dts_quirks()
2567 dev_warn(ddata->dev, "bad ti,sysc-delay-us: %i\n", in sysc_init_dts_quirks()
2571 ddata->cfg.srst_udelay = (u8)val; in sysc_init_dts_quirks()
2581 if (!ddata->clocks) in sysc_unprepare()
2585 if (!IS_ERR_OR_NULL(ddata->clocks[i])) in sysc_unprepare()
2586 clk_unprepare(ddata->clocks[i]); in sysc_unprepare()
2594 .dmadisable_shift = -ENODEV,
2627 .dmadisable_shift = -ENODEV,
2628 .midle_shift = -ENODEV,
2630 .clkact_shift = -ENODEV,
2631 .enwkup_shift = -ENODEV,
2634 .emufree_shift = -ENODEV,
2648 .dmadisable_shift = -ENODEV,
2649 .midle_shift = -ENODEV,
2651 .clkact_shift = -ENODEV,
2652 .enwkup_shift = -ENODEV,
2655 .emufree_shift = -ENODEV,
2665 * Common sysc register bits found on omap4, also known as type2
2671 .clkact_shift = -ENODEV,
2672 .enwkup_shift = -ENODEV,
2675 .autoidle_shift = -ENODEV,
2693 * Common sysc register bits found on omap4, also known as type3
2696 .dmadisable_shift = -ENODEV,
2699 .clkact_shift = -ENODEV,
2700 .enwkup_shift = -ENODEV,
2701 .srst_shift = -ENODEV,
2702 .emufree_shift = -ENODEV,
2703 .autoidle_shift = -ENODEV,
2715 .dmadisable_shift = -ENODEV,
2716 .midle_shift = -ENODEV,
2717 .sidle_shift = -ENODEV,
2719 .enwkup_shift = -ENODEV,
2720 .srst_shift = -ENODEV,
2721 .emufree_shift = -ENODEV,
2722 .autoidle_shift = -ENODEV,
2736 .dmadisable_shift = -ENODEV,
2737 .midle_shift = -ENODEV,
2739 .clkact_shift = -ENODEV,
2741 .srst_shift = -ENODEV,
2742 .emufree_shift = -ENODEV,
2743 .autoidle_shift = -ENODEV,
2759 * McASP register bits found on omap4 and later
2762 .dmadisable_shift = -ENODEV,
2763 .midle_shift = -ENODEV,
2765 .clkact_shift = -ENODEV,
2766 .enwkup_shift = -ENODEV,
2767 .srst_shift = -ENODEV,
2768 .emufree_shift = -ENODEV,
2769 .autoidle_shift = -ENODEV,
2788 * FS USB host found on omap4 and later
2791 .dmadisable_shift = -ENODEV,
2792 .midle_shift = -ENODEV,
2794 .clkact_shift = -ENODEV,
2796 .srst_shift = -ENODEV,
2797 .emufree_shift = -ENODEV,
2798 .autoidle_shift = -ENODEV,
2808 .dmadisable_shift = -ENODEV,
2809 .midle_shift = -ENODEV,
2810 .sidle_shift = -ENODEV,
2811 .clkact_shift = -ENODEV,
2814 .emufree_shift = -ENODEV,
2815 .autoidle_shift = -ENODEV,
2837 struct ti_sysc_platform_data *pdata = dev_get_platdata(ddata->dev); in sysc_init_pdata()
2843 mdata = devm_kzalloc(ddata->dev, sizeof(*mdata), GFP_KERNEL); in sysc_init_pdata()
2845 return -ENOMEM; in sysc_init_pdata()
2847 if (ddata->legacy_mode) { in sysc_init_pdata()
2848 mdata->name = ddata->legacy_mode; in sysc_init_pdata()
2849 mdata->module_pa = ddata->module_pa; in sysc_init_pdata()
2850 mdata->module_size = ddata->module_size; in sysc_init_pdata()
2851 mdata->offsets = ddata->offsets; in sysc_init_pdata()
2852 mdata->nr_offsets = SYSC_MAX_REGS; in sysc_init_pdata()
2853 mdata->cap = ddata->cap; in sysc_init_pdata()
2854 mdata->cfg = &ddata->cfg; in sysc_init_pdata()
2857 ddata->mdata = mdata; in sysc_init_pdata()
2866 cap = of_device_get_match_data(ddata->dev); in sysc_init_match()
2868 return -EINVAL; in sysc_init_match()
2870 ddata->cap = cap; in sysc_init_match()
2871 if (ddata->cap) in sysc_init_match()
2872 ddata->cfg.quirks |= ddata->cap->mod_quirks; in sysc_init_match()
2889 if (ddata->cfg.quirks & (SYSC_QUIRK_NO_IDLE | in ti_sysc_idle()
2897 if (ddata->cfg.quirks & SYSC_QUIRK_NO_IDLE) in ti_sysc_idle()
2904 if (pm_runtime_active(ddata->dev)) in ti_sysc_idle()
2905 pm_runtime_put_sync(ddata->dev); in ti_sysc_idle()
2956 return -ENOMEM; in sysc_add_disabled()
2958 disabled_module->base = base; in sysc_add_disabled()
2960 mutex_lock(&sysc_soc->list_lock); in sysc_add_disabled()
2961 list_add(&disabled_module->node, &sysc_soc->disabled_modules); in sysc_add_disabled()
2962 mutex_unlock(&sysc_soc->list_lock); in sysc_add_disabled()
2971 * Note that we initialize static data shared across all ti-sysc instances
2987 return -ENOMEM; in sysc_init_static_data()
2989 mutex_init(&sysc_soc->list_lock); in sysc_init_static_data()
2990 INIT_LIST_HEAD(&sysc_soc->disabled_modules); in sysc_init_static_data()
2991 INIT_LIST_HEAD(&sysc_soc->restored_modules); in sysc_init_static_data()
2992 sysc_soc->general_purpose = true; in sysc_init_static_data()
2994 pdata = dev_get_platdata(ddata->dev); in sysc_init_static_data()
2995 if (pdata && pdata->soc_type_gp) in sysc_init_static_data()
2996 sysc_soc->general_purpose = pdata->soc_type_gp(); in sysc_init_static_data()
2999 if (match && match->data) in sysc_init_static_data()
3000 sysc_soc->soc = (enum sysc_soc)(uintptr_t)match->data; in sysc_init_static_data()
3004 * simple-pm-bus instead of simple-bus in the dtb for genpd using SoCs. in sysc_init_static_data()
3006 switch (sysc_soc->soc) { in sysc_init_static_data()
3013 WARN_ONCE(np && of_device_is_compatible(np, "simple-bus"), in sysc_init_static_data()
3014 "ti-sysc: Incomplete old dtb, please update\n"); in sysc_init_static_data()
3021 if (!sysc_soc->general_purpose) { in sysc_init_static_data()
3022 switch (sysc_soc->soc) { in sysc_init_static_data()
3027 sysc_add_disabled(0x48310000); /* rng */ in sysc_init_static_data()
3038 if (match->data) in sysc_init_static_data()
3039 features = (unsigned long)match->data; in sysc_init_static_data()
3065 if (sysc_soc->nb.notifier_call) in sysc_cleanup_static_data()
3066 cpu_pm_unregister_notifier(&sysc_soc->nb); in sysc_cleanup_static_data()
3068 mutex_lock(&sysc_soc->list_lock); in sysc_cleanup_static_data()
3069 list_for_each_safe(pos, tmp, &sysc_soc->restored_modules) { in sysc_cleanup_static_data()
3074 list_for_each_safe(pos, tmp, &sysc_soc->disabled_modules) { in sysc_cleanup_static_data()
3079 mutex_unlock(&sysc_soc->list_lock); in sysc_cleanup_static_data()
3087 mutex_lock(&sysc_soc->list_lock); in sysc_check_disabled_devices()
3088 list_for_each_entry(disabled_module, &sysc_soc->disabled_modules, node) { in sysc_check_disabled_devices()
3089 if (ddata->module_pa == disabled_module->base) { in sysc_check_disabled_devices()
3090 dev_dbg(ddata->dev, "module disabled for this SoC\n"); in sysc_check_disabled_devices()
3091 error = -ENODEV; in sysc_check_disabled_devices()
3095 mutex_unlock(&sysc_soc->list_lock); in sysc_check_disabled_devices()
3101 * Ignore timers tagged with no-reset and no-idle. These are likely in use,
3102 * for example by drivers/clocksource/timer-ti-dm-systimer.c. If more checks
3109 if (ddata->cap->type != TI_SYSC_OMAP2_TIMER && in sysc_check_active_timer()
3110 ddata->cap->type != TI_SYSC_OMAP4_TIMER) in sysc_check_active_timer()
3120 if (sysc_soc->soc == SOC_3430 || sysc_soc->soc == SOC_AM35) in sysc_check_active_timer()
3121 error = -ENXIO; in sysc_check_active_timer()
3123 error = -EBUSY; in sysc_check_active_timer()
3125 if ((ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT) && in sysc_check_active_timer()
3126 (ddata->cfg.quirks & SYSC_QUIRK_NO_IDLE)) in sysc_check_active_timer()
3133 { .compatible = "simple-bus", },
3139 struct ti_sysc_platform_data *pdata = dev_get_platdata(&pdev->dev); in sysc_probe()
3143 ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL); in sysc_probe()
3145 return -ENOMEM; in sysc_probe()
3147 ddata->offsets[SYSC_REVISION] = -ENODEV; in sysc_probe()
3148 ddata->offsets[SYSC_SYSCONFIG] = -ENODEV; in sysc_probe()
3149 ddata->offsets[SYSC_SYSSTATUS] = -ENODEV; in sysc_probe()
3150 ddata->dev = &pdev->dev; in sysc_probe()
3192 if (error == -ENXIO) in sysc_probe()
3193 ddata->reserved = true; in sysc_probe()
3209 pm_runtime_enable(ddata->dev); in sysc_probe()
3210 error = pm_runtime_resume_and_get(ddata->dev); in sysc_probe()
3212 pm_runtime_disable(ddata->dev); in sysc_probe()
3217 if (!(ddata->cfg.quirks & in sysc_probe()
3224 if (!(ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT)) in sysc_probe()
3225 reset_control_assert(ddata->rsts); in sysc_probe()
3229 ddata->dev->type = &sysc_device_type; in sysc_probe()
3231 if (!ddata->reserved) { in sysc_probe()
3232 error = of_platform_populate(ddata->dev->of_node, in sysc_probe()
3234 pdata ? pdata->auxdata : NULL, in sysc_probe()
3235 ddata->dev); in sysc_probe()
3240 INIT_DELAYED_WORK(&ddata->idle_work, ti_sysc_idle); in sysc_probe()
3243 if (ddata->cfg.quirks & (SYSC_QUIRK_NO_IDLE | in sysc_probe()
3246 schedule_delayed_work(&ddata->idle_work, 3000); in sysc_probe()
3248 pm_runtime_put(&pdev->dev); in sysc_probe()
3251 if (ddata->cfg.quirks & SYSC_QUIRK_REINIT_ON_CTX_LOST) in sysc_probe()
3257 pm_runtime_put_sync(&pdev->dev); in sysc_probe()
3258 pm_runtime_disable(&pdev->dev); in sysc_probe()
3271 if (cancel_delayed_work_sync(&ddata->idle_work)) in sysc_remove()
3272 ti_sysc_idle(&ddata->idle_work.work); in sysc_remove()
3274 error = pm_runtime_resume_and_get(ddata->dev); in sysc_remove()
3276 pm_runtime_disable(ddata->dev); in sysc_remove()
3280 of_platform_depopulate(&pdev->dev); in sysc_remove()
3282 pm_runtime_put_sync(&pdev->dev); in sysc_remove()
3283 pm_runtime_disable(&pdev->dev); in sysc_remove()
3285 if (!reset_control_status(ddata->rsts)) in sysc_remove()
3286 reset_control_assert(ddata->rsts); in sysc_remove()
3293 { .compatible = "ti,sysc-omap2", .data = &sysc_omap2, },
3294 { .compatible = "ti,sysc-omap2-timer", .data = &sysc_omap2_timer, },
3295 { .compatible = "ti,sysc-omap4", .data = &sysc_omap4, },
3296 { .compatible = "ti,sysc-omap4-timer", .data = &sysc_omap4_timer, },
3297 { .compatible = "ti,sysc-omap4-simple", .data = &sysc_omap4_simple, },
3298 { .compatible = "ti,sysc-omap3430-sr", .data = &sysc_34xx_sr, },
3299 { .compatible = "ti,sysc-omap3630-sr", .data = &sysc_36xx_sr, },
3300 { .compatible = "ti,sysc-omap4-sr", .data = &sysc_omap4_sr, },
3301 { .compatible = "ti,sysc-omap3-sham", .data = &sysc_omap3_sham, },
3302 { .compatible = "ti,sysc-omap-aes", .data = &sysc_omap3_aes, },
3303 { .compatible = "ti,sysc-mcasp", .data = &sysc_omap4_mcasp, },
3304 { .compatible = "ti,sysc-dra7-mcasp", .data = &sysc_dra7_mcasp, },
3305 { .compatible = "ti,sysc-usb-host-fs",
3307 { .compatible = "ti,sysc-dra7-mcan", .data = &sysc_dra7_mcan, },
3308 { .compatible = "ti,sysc-pruss", .data = &sysc_pruss, },
3317 .name = "ti-sysc",