Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 1 | /* |
Matt Wagantall | a72d03d | 2013-02-26 21:13:14 -0800 | [diff] [blame] | 2 | * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 and |
| 6 | * only version 2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/platform_device.h> |
| 17 | #include <linux/io.h> |
| 18 | #include <linux/iopoll.h> |
| 19 | #include <linux/ioport.h> |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 20 | #include <linux/delay.h> |
| 21 | #include <linux/sched.h> |
| 22 | #include <linux/clk.h> |
| 23 | #include <linux/err.h> |
| 24 | #include <linux/of.h> |
| 25 | #include <linux/regulator/consumer.h> |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 26 | #include <linux/interrupt.h> |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 27 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 28 | #include <mach/subsystem_restart.h> |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 29 | #include <mach/clk.h> |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 30 | #include <mach/msm_smsm.h> |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 31 | |
| 32 | #include "peripheral-loader.h" |
| 33 | #include "pil-q6v5.h" |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 34 | #include "ramdump.h" |
Vikram Mulukutla | 896d058 | 2012-10-17 16:57:46 -0700 | [diff] [blame] | 35 | #include "sysmon.h" |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 36 | |
| 37 | /* Q6 Register Offsets */ |
| 38 | #define QDSP6SS_RST_EVB 0x010 |
| 39 | |
| 40 | /* AXI Halting Registers */ |
| 41 | #define MSS_Q6_HALT_BASE 0x180 |
| 42 | #define MSS_MODEM_HALT_BASE 0x200 |
| 43 | #define MSS_NC_HALT_BASE 0x280 |
| 44 | |
| 45 | /* RMB Status Register Values */ |
| 46 | #define STATUS_PBL_SUCCESS 0x1 |
| 47 | #define STATUS_XPU_UNLOCKED 0x1 |
| 48 | #define STATUS_XPU_UNLOCKED_SCRIBBLED 0x2 |
| 49 | |
| 50 | /* PBL/MBA interface registers */ |
| 51 | #define RMB_MBA_IMAGE 0x00 |
| 52 | #define RMB_PBL_STATUS 0x04 |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 53 | #define RMB_MBA_COMMAND 0x08 |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 54 | #define RMB_MBA_STATUS 0x0C |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 55 | #define RMB_PMI_META_DATA 0x10 |
| 56 | #define RMB_PMI_CODE_START 0x14 |
| 57 | #define RMB_PMI_CODE_LENGTH 0x18 |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 58 | |
Matt Wagantall | 70315fb | 2012-12-03 16:33:28 -0800 | [diff] [blame] | 59 | #define VDD_MSS_UV 1050000 |
Patrick Daly | 068ea8e | 2013-03-04 19:52:40 -0800 | [diff] [blame] | 60 | #define MAX_VDD_MX_UV 1150000 |
Matt Wagantall | 70315fb | 2012-12-03 16:33:28 -0800 | [diff] [blame] | 61 | |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 62 | #define PROXY_TIMEOUT_MS 10000 |
| 63 | #define POLL_INTERVAL_US 50 |
| 64 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 65 | #define CMD_META_DATA_READY 0x1 |
| 66 | #define CMD_LOAD_READY 0x2 |
| 67 | |
| 68 | #define STATUS_META_DATA_AUTH_SUCCESS 0x3 |
| 69 | #define STATUS_AUTH_COMPLETE 0x4 |
| 70 | |
| 71 | #define MAX_SSR_REASON_LEN 81U |
| 72 | |
Patrick Daly | 11ca6af | 2013-03-03 17:07:28 -0800 | [diff] [blame] | 73 | /* External BHS */ |
| 74 | #define EXTERNAL_BHS_ON BIT(0) |
| 75 | #define EXTERNAL_BHS_STATUS BIT(4) |
| 76 | #define BHS_TIMEOUT_US 50 |
| 77 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 78 | struct mba_data { |
| 79 | void __iomem *metadata_base; |
| 80 | void __iomem *rmb_base; |
| 81 | void __iomem *io_clamp_reg; |
| 82 | unsigned long metadata_phys; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 83 | struct pil_desc desc; |
| 84 | struct subsys_device *subsys; |
| 85 | struct subsys_desc subsys_desc; |
Vikram Mulukutla | 896d058 | 2012-10-17 16:57:46 -0700 | [diff] [blame] | 86 | void *adsp_state_notifier; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 87 | u32 img_length; |
| 88 | struct q6v5_data *q6; |
Patrick Daly | b830a3f | 2013-03-11 14:21:34 -0700 | [diff] [blame] | 89 | bool self_auth; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 90 | void *ramdump_dev; |
| 91 | void *smem_ramdump_dev; |
| 92 | bool crash_shutdown; |
| 93 | bool ignore_errors; |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 94 | int is_loadable; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 95 | }; |
| 96 | |
Matt Wagantall | d251d8e | 2012-08-16 18:53:53 -0700 | [diff] [blame] | 97 | static int pbl_mba_boot_timeout_ms = 100; |
| 98 | module_param(pbl_mba_boot_timeout_ms, int, S_IRUGO | S_IWUSR); |
| 99 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 100 | static int modem_auth_timeout_ms = 10000; |
| 101 | module_param(modem_auth_timeout_ms, int, S_IRUGO | S_IWUSR); |
| 102 | |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 103 | static int pil_mss_power_up(struct q6v5_data *drv) |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 104 | { |
| 105 | int ret; |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 106 | struct device *dev = drv->desc.dev; |
Patrick Daly | 11ca6af | 2013-03-03 17:07:28 -0800 | [diff] [blame] | 107 | u32 regval; |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 108 | |
| 109 | ret = regulator_enable(drv->vreg); |
| 110 | if (ret) |
Matt Wagantall | 70315fb | 2012-12-03 16:33:28 -0800 | [diff] [blame] | 111 | dev_err(dev, "Failed to enable modem regulator.\n"); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 112 | |
Patrick Daly | 11ca6af | 2013-03-03 17:07:28 -0800 | [diff] [blame] | 113 | if (drv->cxrail_bhs) { |
| 114 | regval = readl_relaxed(drv->cxrail_bhs); |
| 115 | regval |= EXTERNAL_BHS_ON; |
| 116 | writel_relaxed(regval, drv->cxrail_bhs); |
| 117 | |
| 118 | ret = readl_poll_timeout(drv->cxrail_bhs, regval, |
| 119 | regval & EXTERNAL_BHS_STATUS, 1, BHS_TIMEOUT_US); |
| 120 | } |
| 121 | |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 122 | return ret; |
| 123 | } |
| 124 | |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 125 | static int pil_mss_power_down(struct q6v5_data *drv) |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 126 | { |
Patrick Daly | 11ca6af | 2013-03-03 17:07:28 -0800 | [diff] [blame] | 127 | u32 regval; |
| 128 | |
| 129 | if (drv->cxrail_bhs) { |
| 130 | regval = readl_relaxed(drv->cxrail_bhs); |
| 131 | regval &= ~EXTERNAL_BHS_ON; |
| 132 | writel_relaxed(regval, drv->cxrail_bhs); |
| 133 | } |
| 134 | |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 135 | return regulator_disable(drv->vreg); |
| 136 | } |
| 137 | |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 138 | static int pil_mss_enable_clks(struct q6v5_data *drv) |
| 139 | { |
| 140 | int ret; |
| 141 | |
| 142 | ret = clk_prepare_enable(drv->ahb_clk); |
| 143 | if (ret) |
| 144 | goto err_ahb_clk; |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 145 | ret = clk_prepare_enable(drv->axi_clk); |
| 146 | if (ret) |
| 147 | goto err_axi_clk; |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 148 | ret = clk_prepare_enable(drv->rom_clk); |
| 149 | if (ret) |
| 150 | goto err_rom_clk; |
| 151 | |
| 152 | return 0; |
| 153 | |
| 154 | err_rom_clk: |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 155 | clk_disable_unprepare(drv->axi_clk); |
| 156 | err_axi_clk: |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 157 | clk_disable_unprepare(drv->ahb_clk); |
| 158 | err_ahb_clk: |
| 159 | return ret; |
| 160 | } |
| 161 | |
| 162 | static void pil_mss_disable_clks(struct q6v5_data *drv) |
| 163 | { |
| 164 | clk_disable_unprepare(drv->rom_clk); |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 165 | clk_disable_unprepare(drv->axi_clk); |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 166 | clk_disable_unprepare(drv->ahb_clk); |
| 167 | } |
| 168 | |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 169 | static int wait_for_mba_ready(struct q6v5_data *drv) |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 170 | { |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 171 | struct device *dev = drv->desc.dev; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 172 | struct mba_data *mba = platform_get_drvdata(to_platform_device(dev)); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 173 | int ret; |
| 174 | u32 status; |
| 175 | |
| 176 | /* Wait for PBL completion. */ |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 177 | ret = readl_poll_timeout(mba->rmb_base + RMB_PBL_STATUS, status, |
Matt Wagantall | d251d8e | 2012-08-16 18:53:53 -0700 | [diff] [blame] | 178 | status != 0, POLL_INTERVAL_US, pbl_mba_boot_timeout_ms * 1000); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 179 | if (ret) { |
| 180 | dev_err(dev, "PBL boot timed out\n"); |
| 181 | return ret; |
| 182 | } |
| 183 | if (status != STATUS_PBL_SUCCESS) { |
| 184 | dev_err(dev, "PBL returned unexpected status %d\n", status); |
| 185 | return -EINVAL; |
| 186 | } |
| 187 | |
| 188 | /* Wait for MBA completion. */ |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 189 | ret = readl_poll_timeout(mba->rmb_base + RMB_MBA_STATUS, status, |
Matt Wagantall | d251d8e | 2012-08-16 18:53:53 -0700 | [diff] [blame] | 190 | status != 0, POLL_INTERVAL_US, pbl_mba_boot_timeout_ms * 1000); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 191 | if (ret) { |
| 192 | dev_err(dev, "MBA boot timed out\n"); |
| 193 | return ret; |
| 194 | } |
| 195 | if (status != STATUS_XPU_UNLOCKED && |
| 196 | status != STATUS_XPU_UNLOCKED_SCRIBBLED) { |
| 197 | dev_err(dev, "MBA returned unexpected status %d\n", status); |
| 198 | return -EINVAL; |
| 199 | } |
| 200 | |
| 201 | return 0; |
| 202 | } |
| 203 | |
| 204 | static int pil_mss_shutdown(struct pil_desc *pil) |
| 205 | { |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 206 | struct q6v5_data *drv = container_of(pil, struct q6v5_data, desc); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 207 | |
| 208 | pil_q6v5_halt_axi_port(pil, drv->axi_halt_base + MSS_Q6_HALT_BASE); |
| 209 | pil_q6v5_halt_axi_port(pil, drv->axi_halt_base + MSS_MODEM_HALT_BASE); |
| 210 | pil_q6v5_halt_axi_port(pil, drv->axi_halt_base + MSS_NC_HALT_BASE); |
| 211 | |
| 212 | /* |
| 213 | * If the shutdown function is called before the reset function, clocks |
| 214 | * and power will not be enabled yet. Enable them here so that register |
| 215 | * writes performed during the shutdown succeed. |
| 216 | */ |
| 217 | if (drv->is_booted == false) { |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 218 | pil_mss_power_up(drv); |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 219 | pil_mss_enable_clks(drv); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 220 | } |
| 221 | pil_q6v5_shutdown(pil); |
| 222 | |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 223 | pil_mss_disable_clks(drv); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 224 | |
| 225 | writel_relaxed(1, drv->restart_reg); |
| 226 | |
Patrick Daly | 11ca6af | 2013-03-03 17:07:28 -0800 | [diff] [blame] | 227 | /* |
| 228 | * access to the cx_rail_bhs is restricted until after the gcc_mss |
| 229 | * reset is asserted once the PBL starts executing. |
| 230 | */ |
| 231 | pil_mss_power_down(drv); |
| 232 | |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 233 | drv->is_booted = false; |
| 234 | |
| 235 | return 0; |
| 236 | } |
| 237 | |
| 238 | static int pil_mss_reset(struct pil_desc *pil) |
| 239 | { |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 240 | struct q6v5_data *drv = container_of(pil, struct q6v5_data, desc); |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 241 | struct platform_device *pdev = to_platform_device(pil->dev); |
| 242 | struct mba_data *mba = platform_get_drvdata(pdev); |
Stephen Boyd | 3030c25 | 2012-08-08 17:24:05 -0700 | [diff] [blame] | 243 | unsigned long start_addr = pil_get_entry_addr(pil); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 244 | int ret; |
| 245 | |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 246 | /* |
| 247 | * Bring subsystem out of reset and enable required |
| 248 | * regulators and clocks. |
| 249 | */ |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 250 | ret = pil_mss_power_up(drv); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 251 | if (ret) |
| 252 | goto err_power; |
| 253 | |
Patrick Daly | 11ca6af | 2013-03-03 17:07:28 -0800 | [diff] [blame] | 254 | /* Deassert reset to subsystem and wait for propagation */ |
| 255 | writel_relaxed(0, drv->restart_reg); |
| 256 | mb(); |
| 257 | udelay(2); |
| 258 | |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 259 | ret = pil_mss_enable_clks(drv); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 260 | if (ret) |
| 261 | goto err_clks; |
| 262 | |
| 263 | /* Program Image Address */ |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 264 | if (mba->self_auth) { |
Stephen Boyd | 3030c25 | 2012-08-08 17:24:05 -0700 | [diff] [blame] | 265 | writel_relaxed(start_addr, mba->rmb_base + RMB_MBA_IMAGE); |
Matt Wagantall | f11928a | 2012-07-27 15:47:59 -0700 | [diff] [blame] | 266 | /* Ensure write to RMB base occurs before reset is released. */ |
| 267 | mb(); |
| 268 | } else { |
Stephen Boyd | 3030c25 | 2012-08-08 17:24:05 -0700 | [diff] [blame] | 269 | writel_relaxed((start_addr >> 4) & 0x0FFFFFF0, |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 270 | drv->reg_base + QDSP6SS_RST_EVB); |
Matt Wagantall | f11928a | 2012-07-27 15:47:59 -0700 | [diff] [blame] | 271 | } |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 272 | |
| 273 | ret = pil_q6v5_reset(pil); |
| 274 | if (ret) |
| 275 | goto err_q6v5_reset; |
| 276 | |
| 277 | /* Wait for MBA to start. Check for PBL and MBA errors while waiting. */ |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 278 | if (mba->self_auth) { |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 279 | ret = wait_for_mba_ready(drv); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 280 | if (ret) |
| 281 | goto err_auth; |
| 282 | } |
| 283 | |
| 284 | drv->is_booted = true; |
| 285 | |
| 286 | return 0; |
| 287 | |
| 288 | err_auth: |
| 289 | pil_q6v5_shutdown(pil); |
| 290 | err_q6v5_reset: |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 291 | pil_mss_disable_clks(drv); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 292 | err_clks: |
Stephen Boyd | 3826cd4 | 2012-07-05 17:37:53 -0700 | [diff] [blame] | 293 | pil_mss_power_down(drv); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 294 | err_power: |
| 295 | return ret; |
| 296 | } |
| 297 | |
Matt Wagantall | 70315fb | 2012-12-03 16:33:28 -0800 | [diff] [blame] | 298 | static int pil_q6v5_mss_make_proxy_votes(struct pil_desc *pil) |
| 299 | { |
| 300 | int ret; |
| 301 | struct q6v5_data *drv = container_of(pil, struct q6v5_data, desc); |
| 302 | |
| 303 | ret = regulator_set_voltage(drv->vreg_mx, VDD_MSS_UV, MAX_VDD_MX_UV); |
| 304 | if (ret) { |
| 305 | dev_err(pil->dev, "Failed to request vreg_mx voltage\n"); |
| 306 | return ret; |
| 307 | } |
| 308 | |
| 309 | ret = regulator_enable(drv->vreg_mx); |
| 310 | if (ret) { |
| 311 | dev_err(pil->dev, "Failed to enable vreg_mx\n"); |
| 312 | regulator_set_voltage(drv->vreg_mx, 0, MAX_VDD_MX_UV); |
| 313 | return ret; |
| 314 | } |
| 315 | |
| 316 | ret = pil_q6v5_make_proxy_votes(pil); |
| 317 | if (ret) { |
| 318 | regulator_disable(drv->vreg_mx); |
| 319 | regulator_set_voltage(drv->vreg_mx, 0, MAX_VDD_MX_UV); |
| 320 | } |
| 321 | |
| 322 | return ret; |
| 323 | } |
| 324 | |
| 325 | static void pil_q6v5_mss_remove_proxy_votes(struct pil_desc *pil) |
| 326 | { |
| 327 | struct q6v5_data *drv = container_of(pil, struct q6v5_data, desc); |
| 328 | pil_q6v5_remove_proxy_votes(pil); |
| 329 | regulator_disable(drv->vreg_mx); |
| 330 | regulator_set_voltage(drv->vreg_mx, 0, MAX_VDD_MX_UV); |
| 331 | } |
| 332 | |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 333 | static struct pil_reset_ops pil_mss_ops = { |
Matt Wagantall | 70315fb | 2012-12-03 16:33:28 -0800 | [diff] [blame] | 334 | .proxy_vote = pil_q6v5_mss_make_proxy_votes, |
| 335 | .proxy_unvote = pil_q6v5_mss_remove_proxy_votes, |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 336 | .auth_and_reset = pil_mss_reset, |
| 337 | .shutdown = pil_mss_shutdown, |
| 338 | }; |
| 339 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 340 | static int pil_mba_make_proxy_votes(struct pil_desc *pil) |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 341 | { |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 342 | int ret; |
| 343 | struct mba_data *drv = dev_get_drvdata(pil->dev); |
| 344 | |
| 345 | ret = clk_prepare_enable(drv->q6->xo); |
| 346 | if (ret) { |
| 347 | dev_err(pil->dev, "Failed to enable XO\n"); |
| 348 | return ret; |
| 349 | } |
| 350 | return 0; |
| 351 | } |
| 352 | |
| 353 | static void pil_mba_remove_proxy_votes(struct pil_desc *pil) |
| 354 | { |
| 355 | struct mba_data *drv = dev_get_drvdata(pil->dev); |
| 356 | clk_disable_unprepare(drv->q6->xo); |
| 357 | } |
| 358 | |
| 359 | static int pil_mba_init_image(struct pil_desc *pil, |
| 360 | const u8 *metadata, size_t size) |
| 361 | { |
| 362 | struct mba_data *drv = dev_get_drvdata(pil->dev); |
| 363 | s32 status; |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 364 | int ret; |
| 365 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 366 | /* Copy metadata to assigned shared buffer location */ |
| 367 | memcpy(drv->metadata_base, metadata, size); |
| 368 | |
| 369 | /* Initialize length counter to 0 */ |
| 370 | writel_relaxed(0, drv->rmb_base + RMB_PMI_CODE_LENGTH); |
| 371 | drv->img_length = 0; |
| 372 | |
| 373 | /* Pass address of meta-data to the MBA and perform authentication */ |
| 374 | writel_relaxed(drv->metadata_phys, drv->rmb_base + RMB_PMI_META_DATA); |
| 375 | writel_relaxed(CMD_META_DATA_READY, drv->rmb_base + RMB_MBA_COMMAND); |
| 376 | ret = readl_poll_timeout(drv->rmb_base + RMB_MBA_STATUS, status, |
| 377 | status == STATUS_META_DATA_AUTH_SUCCESS || status < 0, |
| 378 | POLL_INTERVAL_US, modem_auth_timeout_ms * 1000); |
| 379 | if (ret) { |
| 380 | dev_err(pil->dev, "MBA authentication of headers timed out\n"); |
| 381 | } else if (status < 0) { |
| 382 | dev_err(pil->dev, "MBA returned error %d for headers\n", |
| 383 | status); |
| 384 | ret = -EINVAL; |
| 385 | } |
| 386 | |
| 387 | return ret; |
| 388 | } |
| 389 | |
| 390 | static int pil_mba_verify_blob(struct pil_desc *pil, u32 phy_addr, |
| 391 | size_t size) |
| 392 | { |
| 393 | struct mba_data *drv = dev_get_drvdata(pil->dev); |
| 394 | s32 status; |
| 395 | |
| 396 | /* Begin image authentication */ |
| 397 | if (drv->img_length == 0) { |
| 398 | writel_relaxed(phy_addr, drv->rmb_base + RMB_PMI_CODE_START); |
| 399 | writel_relaxed(CMD_LOAD_READY, drv->rmb_base + RMB_MBA_COMMAND); |
| 400 | } |
| 401 | /* Increment length counter */ |
| 402 | drv->img_length += size; |
| 403 | writel_relaxed(drv->img_length, drv->rmb_base + RMB_PMI_CODE_LENGTH); |
| 404 | |
| 405 | status = readl_relaxed(drv->rmb_base + RMB_MBA_STATUS); |
| 406 | if (status < 0) { |
| 407 | dev_err(pil->dev, "MBA returned error %d\n", status); |
| 408 | return -EINVAL; |
| 409 | } |
| 410 | |
| 411 | return 0; |
| 412 | } |
| 413 | |
| 414 | static int pil_mba_auth(struct pil_desc *pil) |
| 415 | { |
| 416 | struct mba_data *drv = dev_get_drvdata(pil->dev); |
| 417 | int ret; |
| 418 | s32 status; |
| 419 | |
| 420 | /* Wait for all segments to be authenticated or an error to occur */ |
| 421 | ret = readl_poll_timeout(drv->rmb_base + RMB_MBA_STATUS, status, |
| 422 | status == STATUS_AUTH_COMPLETE || status < 0, |
| 423 | 50, modem_auth_timeout_ms * 1000); |
| 424 | if (ret) { |
| 425 | dev_err(pil->dev, "MBA authentication of image timed out\n"); |
| 426 | } else if (status < 0) { |
| 427 | dev_err(pil->dev, "MBA returned error %d for image\n", status); |
| 428 | ret = -EINVAL; |
| 429 | } |
| 430 | |
| 431 | return ret; |
| 432 | } |
| 433 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 434 | static struct pil_reset_ops pil_mba_ops = { |
| 435 | .init_image = pil_mba_init_image, |
| 436 | .proxy_vote = pil_mba_make_proxy_votes, |
| 437 | .proxy_unvote = pil_mba_remove_proxy_votes, |
| 438 | .verify_blob = pil_mba_verify_blob, |
| 439 | .auth_and_reset = pil_mba_auth, |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 440 | }; |
| 441 | |
| 442 | #define subsys_to_drv(d) container_of(d, struct mba_data, subsys_desc) |
| 443 | |
| 444 | static void log_modem_sfr(void) |
| 445 | { |
| 446 | u32 size; |
| 447 | char *smem_reason, reason[MAX_SSR_REASON_LEN]; |
| 448 | |
| 449 | smem_reason = smem_get_entry(SMEM_SSR_REASON_MSS0, &size); |
| 450 | if (!smem_reason || !size) { |
| 451 | pr_err("modem subsystem failure reason: (unknown, smem_get_entry failed).\n"); |
| 452 | return; |
| 453 | } |
| 454 | if (!smem_reason[0]) { |
| 455 | pr_err("modem subsystem failure reason: (unknown, empty string found).\n"); |
| 456 | return; |
| 457 | } |
| 458 | |
| 459 | strlcpy(reason, smem_reason, min(size, sizeof(reason))); |
| 460 | pr_err("modem subsystem failure reason: %s.\n", reason); |
| 461 | |
| 462 | smem_reason[0] = '\0'; |
| 463 | wmb(); |
| 464 | } |
| 465 | |
| 466 | static void restart_modem(struct mba_data *drv) |
| 467 | { |
| 468 | log_modem_sfr(); |
| 469 | drv->ignore_errors = true; |
| 470 | subsystem_restart_dev(drv->subsys); |
| 471 | } |
| 472 | |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 473 | static void smsm_state_cb(void *data, uint32_t old_state, uint32_t new_state) |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 474 | { |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 475 | struct mba_data *drv = data; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 476 | |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 477 | /* Ignore if we're the one that set SMSM_RESET */ |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 478 | if (drv->crash_shutdown) |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 479 | return; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 480 | |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 481 | if (new_state & SMSM_RESET) { |
| 482 | pr_err("Probable fatal error on the modem.\n"); |
| 483 | restart_modem(drv); |
| 484 | } |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 485 | } |
| 486 | |
| 487 | static int modem_shutdown(const struct subsys_desc *subsys) |
| 488 | { |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 489 | struct mba_data *drv = subsys_to_drv(subsys); |
| 490 | |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 491 | if (!drv->is_loadable) |
Vikram Mulukutla | 1d958af | 2012-11-20 14:06:12 -0800 | [diff] [blame] | 492 | return 0; |
Matt Wagantall | a72d03d | 2013-02-26 21:13:14 -0800 | [diff] [blame] | 493 | pil_shutdown(&drv->desc); |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 494 | pil_shutdown(&drv->q6->desc); |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 495 | return 0; |
| 496 | } |
| 497 | |
| 498 | static int modem_powerup(const struct subsys_desc *subsys) |
| 499 | { |
| 500 | struct mba_data *drv = subsys_to_drv(subsys); |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 501 | int ret; |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 502 | |
| 503 | if (!drv->is_loadable) |
Vikram Mulukutla | 1d958af | 2012-11-20 14:06:12 -0800 | [diff] [blame] | 504 | return 0; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 505 | /* |
| 506 | * At this time, the modem is shutdown. Therefore this function cannot |
| 507 | * run concurrently with either the watchdog bite error handler or the |
| 508 | * SMSM callback, making it safe to unset the flag below. |
| 509 | */ |
| 510 | drv->ignore_errors = false; |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 511 | ret = pil_boot(&drv->q6->desc); |
| 512 | if (ret) |
| 513 | return ret; |
| 514 | ret = pil_boot(&drv->desc); |
| 515 | if (ret) |
| 516 | pil_shutdown(&drv->q6->desc); |
| 517 | return ret; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 518 | } |
| 519 | |
| 520 | static void modem_crash_shutdown(const struct subsys_desc *subsys) |
| 521 | { |
| 522 | struct mba_data *drv = subsys_to_drv(subsys); |
| 523 | drv->crash_shutdown = true; |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 524 | smsm_reset_modem(SMSM_RESET); |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 525 | } |
| 526 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 527 | static struct ramdump_segment smem_segments[] = { |
| 528 | {0x0FA00000, 0x0FC00000 - 0x0FA00000}, |
| 529 | }; |
| 530 | |
| 531 | static int modem_ramdump(int enable, const struct subsys_desc *subsys) |
| 532 | { |
| 533 | struct mba_data *drv = subsys_to_drv(subsys); |
| 534 | int ret; |
| 535 | |
| 536 | if (!enable) |
| 537 | return 0; |
| 538 | |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 539 | ret = pil_boot(&drv->q6->desc); |
| 540 | if (ret) |
| 541 | return ret; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 542 | |
Stephen Boyd | 05c45f2 | 2013-01-24 12:02:28 -0800 | [diff] [blame] | 543 | ret = pil_do_ramdump(&drv->desc, drv->ramdump_dev); |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 544 | if (ret < 0) { |
| 545 | pr_err("Unable to dump modem fw memory (rc = %d).\n", ret); |
| 546 | goto out; |
| 547 | } |
| 548 | |
Stephen Boyd | 5eb17ce | 2012-11-29 15:34:21 -0800 | [diff] [blame] | 549 | ret = do_elf_ramdump(drv->smem_ramdump_dev, smem_segments, |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 550 | ARRAY_SIZE(smem_segments)); |
| 551 | if (ret < 0) { |
| 552 | pr_err("Unable to dump smem memory (rc = %d).\n", ret); |
| 553 | goto out; |
| 554 | } |
| 555 | |
| 556 | out: |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 557 | pil_shutdown(&drv->q6->desc); |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 558 | return ret; |
| 559 | } |
| 560 | |
Vikram Mulukutla | 896d058 | 2012-10-17 16:57:46 -0700 | [diff] [blame] | 561 | static int adsp_state_notifier_fn(struct notifier_block *this, |
| 562 | unsigned long code, void *ss_handle) |
| 563 | { |
| 564 | int ret; |
| 565 | ret = sysmon_send_event(SYSMON_SS_MODEM, "adsp", code); |
| 566 | if (ret < 0) |
| 567 | pr_err("%s: sysmon_send_event failed (%d).", __func__, ret); |
| 568 | return NOTIFY_DONE; |
| 569 | } |
| 570 | |
| 571 | static struct notifier_block adsp_state_notifier_block = { |
| 572 | .notifier_call = adsp_state_notifier_fn, |
| 573 | }; |
| 574 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 575 | static irqreturn_t modem_wdog_bite_irq(int irq, void *dev_id) |
| 576 | { |
| 577 | struct mba_data *drv = dev_id; |
| 578 | if (drv->ignore_errors) |
| 579 | return IRQ_HANDLED; |
| 580 | pr_err("Watchdog bite received from modem software!\n"); |
| 581 | restart_modem(drv); |
| 582 | return IRQ_HANDLED; |
| 583 | } |
| 584 | |
| 585 | static int mss_start(const struct subsys_desc *desc) |
| 586 | { |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 587 | int ret; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 588 | struct mba_data *drv = subsys_to_drv(desc); |
| 589 | |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 590 | if (!drv->is_loadable) |
Vikram Mulukutla | 1d958af | 2012-11-20 14:06:12 -0800 | [diff] [blame] | 591 | return 0; |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 592 | |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 593 | ret = pil_boot(&drv->q6->desc); |
| 594 | if (ret) |
| 595 | return ret; |
| 596 | ret = pil_boot(&drv->desc); |
| 597 | if (ret) |
| 598 | pil_shutdown(&drv->q6->desc); |
| 599 | return ret; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 600 | } |
| 601 | |
| 602 | static void mss_stop(const struct subsys_desc *desc) |
| 603 | { |
| 604 | struct mba_data *drv = subsys_to_drv(desc); |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 605 | |
| 606 | if (!drv->is_loadable) |
| 607 | return; |
| 608 | |
Matt Wagantall | a72d03d | 2013-02-26 21:13:14 -0800 | [diff] [blame] | 609 | pil_shutdown(&drv->desc); |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 610 | pil_shutdown(&drv->q6->desc); |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 611 | } |
| 612 | |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 613 | static int __devinit pil_subsys_init(struct mba_data *drv, |
| 614 | struct platform_device *pdev) |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 615 | { |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 616 | int irq, ret; |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 617 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 618 | irq = platform_get_irq(pdev, 0); |
| 619 | if (irq < 0) |
| 620 | return irq; |
| 621 | |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 622 | drv->subsys_desc.name = "modem"; |
| 623 | drv->subsys_desc.dev = &pdev->dev; |
| 624 | drv->subsys_desc.owner = THIS_MODULE; |
| 625 | drv->subsys_desc.shutdown = modem_shutdown; |
| 626 | drv->subsys_desc.powerup = modem_powerup; |
| 627 | drv->subsys_desc.ramdump = modem_ramdump; |
| 628 | drv->subsys_desc.crash_shutdown = modem_crash_shutdown; |
| 629 | drv->subsys_desc.start = mss_start; |
| 630 | drv->subsys_desc.stop = mss_stop; |
| 631 | |
| 632 | drv->subsys = subsys_register(&drv->subsys_desc); |
| 633 | if (IS_ERR(drv->subsys)) { |
| 634 | ret = PTR_ERR(drv->subsys); |
| 635 | goto err_subsys; |
| 636 | } |
| 637 | |
| 638 | drv->ramdump_dev = create_ramdump_device("modem", &pdev->dev); |
| 639 | if (!drv->ramdump_dev) { |
| 640 | pr_err("%s: Unable to create a modem ramdump device.\n", |
| 641 | __func__); |
| 642 | ret = -ENOMEM; |
| 643 | goto err_ramdump; |
| 644 | } |
| 645 | |
| 646 | drv->smem_ramdump_dev = create_ramdump_device("smem-modem", &pdev->dev); |
| 647 | if (!drv->smem_ramdump_dev) { |
| 648 | pr_err("%s: Unable to create an smem ramdump device.\n", |
| 649 | __func__); |
| 650 | ret = -ENOMEM; |
| 651 | goto err_ramdump_smem; |
| 652 | } |
| 653 | |
| 654 | ret = devm_request_irq(&pdev->dev, irq, modem_wdog_bite_irq, |
| 655 | IRQF_TRIGGER_RISING, "modem_wdog", drv); |
| 656 | if (ret < 0) { |
| 657 | dev_err(&pdev->dev, "Unable to request watchdog IRQ.\n"); |
| 658 | goto err_irq; |
| 659 | } |
| 660 | |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 661 | ret = smsm_state_cb_register(SMSM_MODEM_STATE, SMSM_RESET, |
| 662 | smsm_state_cb, drv); |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 663 | if (ret < 0) { |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 664 | dev_err(&pdev->dev, "Unable to register SMSM callback!\n"); |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 665 | goto err_irq; |
| 666 | } |
| 667 | |
| 668 | drv->adsp_state_notifier = subsys_notif_register_notifier("adsp", |
| 669 | &adsp_state_notifier_block); |
| 670 | if (IS_ERR(drv->adsp_state_notifier)) { |
| 671 | ret = PTR_ERR(drv->adsp_state_notifier); |
| 672 | dev_err(&pdev->dev, "%s: Registration with the SSR notification driver failed (%d)", |
| 673 | __func__, ret); |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 674 | goto err_smsm; |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 675 | } |
| 676 | |
| 677 | return 0; |
| 678 | |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 679 | err_smsm: |
| 680 | smsm_state_cb_deregister(SMSM_MODEM_STATE, SMSM_RESET, smsm_state_cb, |
| 681 | drv); |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 682 | err_irq: |
| 683 | destroy_ramdump_device(drv->smem_ramdump_dev); |
| 684 | err_ramdump_smem: |
| 685 | destroy_ramdump_device(drv->ramdump_dev); |
| 686 | err_ramdump: |
| 687 | subsys_unregister(drv->subsys); |
| 688 | err_subsys: |
| 689 | return ret; |
| 690 | } |
| 691 | |
| 692 | static int __devinit pil_mss_loadable_init(struct mba_data *drv, |
| 693 | struct platform_device *pdev) |
| 694 | { |
| 695 | struct q6v5_data *q6; |
| 696 | struct pil_desc *q6_desc, *mba_desc; |
| 697 | struct resource *res; |
| 698 | int ret; |
| 699 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 700 | q6 = pil_q6v5_init(pdev); |
| 701 | if (IS_ERR(q6)) |
| 702 | return PTR_ERR(q6); |
| 703 | drv->q6 = q6; |
| 704 | |
| 705 | q6_desc = &q6->desc; |
| 706 | q6_desc->ops = &pil_mss_ops; |
| 707 | q6_desc->owner = THIS_MODULE; |
| 708 | q6_desc->proxy_timeout = PROXY_TIMEOUT_MS; |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 709 | |
Patrick Daly | b830a3f | 2013-03-11 14:21:34 -0700 | [diff] [blame] | 710 | drv->self_auth = of_property_read_bool(pdev->dev.of_node, |
| 711 | "qcom,pil-self-auth"); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 712 | if (drv->self_auth) { |
Matt Wagantall | 1f16815 | 2012-09-25 13:26:47 -0700 | [diff] [blame] | 713 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, |
| 714 | "rmb_base"); |
Stephen Boyd | f8f8928 | 2012-07-16 18:05:48 -0700 | [diff] [blame] | 715 | drv->rmb_base = devm_request_and_ioremap(&pdev->dev, res); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 716 | if (!drv->rmb_base) |
| 717 | return -ENOMEM; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 718 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, |
| 719 | "metadata_base"); |
| 720 | if (res) { |
| 721 | drv->metadata_base = devm_ioremap(&pdev->dev, |
| 722 | res->start, resource_size(res)); |
| 723 | if (!drv->metadata_base) |
| 724 | return -ENOMEM; |
| 725 | drv->metadata_phys = res->start; |
| 726 | } |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 727 | } |
| 728 | |
Matt Wagantall | 1f16815 | 2012-09-25 13:26:47 -0700 | [diff] [blame] | 729 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "restart_reg"); |
Stephen Boyd | f8f8928 | 2012-07-16 18:05:48 -0700 | [diff] [blame] | 730 | q6->restart_reg = devm_request_and_ioremap(&pdev->dev, res); |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 731 | if (!q6->restart_reg) |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 732 | return -ENOMEM; |
| 733 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 734 | q6->vreg = devm_regulator_get(&pdev->dev, "vdd_mss"); |
| 735 | if (IS_ERR(q6->vreg)) |
| 736 | return PTR_ERR(q6->vreg); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 737 | |
Matt Wagantall | 70315fb | 2012-12-03 16:33:28 -0800 | [diff] [blame] | 738 | q6->vreg_mx = devm_regulator_get(&pdev->dev, "vdd_mx"); |
| 739 | if (IS_ERR(q6->vreg_mx)) |
| 740 | return PTR_ERR(q6->vreg_mx); |
| 741 | |
| 742 | ret = regulator_set_voltage(q6->vreg, VDD_MSS_UV, VDD_MSS_UV); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 743 | if (ret) |
| 744 | dev_err(&pdev->dev, "Failed to set regulator's voltage.\n"); |
| 745 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 746 | ret = regulator_set_optimum_mode(q6->vreg, 100000); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 747 | if (ret < 0) { |
| 748 | dev_err(&pdev->dev, "Failed to set regulator's mode.\n"); |
| 749 | return ret; |
| 750 | } |
| 751 | |
Patrick Daly | 11ca6af | 2013-03-03 17:07:28 -0800 | [diff] [blame] | 752 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, |
| 753 | "cxrail_bhs_reg"); |
| 754 | if (res) |
| 755 | q6->cxrail_bhs = devm_ioremap(&pdev->dev, res->start, |
| 756 | resource_size(res)); |
| 757 | |
| 758 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 759 | q6->ahb_clk = devm_clk_get(&pdev->dev, "iface_clk"); |
| 760 | if (IS_ERR(q6->ahb_clk)) |
| 761 | return PTR_ERR(q6->ahb_clk); |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 762 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 763 | q6->axi_clk = devm_clk_get(&pdev->dev, "bus_clk"); |
| 764 | if (IS_ERR(q6->axi_clk)) |
| 765 | return PTR_ERR(q6->axi_clk); |
Matt Wagantall | 8c2246d | 2012-08-12 17:08:04 -0700 | [diff] [blame] | 766 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 767 | q6->rom_clk = devm_clk_get(&pdev->dev, "mem_clk"); |
| 768 | if (IS_ERR(q6->rom_clk)) |
| 769 | return PTR_ERR(q6->rom_clk); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 770 | |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 771 | ret = pil_desc_init(q6_desc); |
| 772 | if (ret) |
| 773 | return ret; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 774 | |
| 775 | mba_desc = &drv->desc; |
| 776 | mba_desc->name = "modem"; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 777 | mba_desc->dev = &pdev->dev; |
| 778 | mba_desc->ops = &pil_mba_ops; |
| 779 | mba_desc->owner = THIS_MODULE; |
| 780 | mba_desc->proxy_timeout = PROXY_TIMEOUT_MS; |
| 781 | |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 782 | ret = pil_desc_init(mba_desc); |
| 783 | if (ret) |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 784 | goto err_mba_desc; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 785 | |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 786 | return 0; |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 787 | |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 788 | err_mba_desc: |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 789 | pil_desc_release(q6_desc); |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 790 | return ret; |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 791 | |
| 792 | } |
| 793 | |
| 794 | static int __devinit pil_mss_driver_probe(struct platform_device *pdev) |
| 795 | { |
| 796 | struct mba_data *drv; |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 797 | int ret; |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 798 | |
| 799 | drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); |
| 800 | if (!drv) |
| 801 | return -ENOMEM; |
| 802 | platform_set_drvdata(pdev, drv); |
| 803 | |
Vikram Mulukutla | 2d4f086 | 2012-11-16 11:57:34 -0800 | [diff] [blame] | 804 | drv->is_loadable = of_property_read_bool(pdev->dev.of_node, |
| 805 | "qcom,is-loadable"); |
Vikram Mulukutla | 7dc2d4e | 2012-11-12 13:04:50 -0800 | [diff] [blame] | 806 | if (drv->is_loadable) { |
| 807 | ret = pil_mss_loadable_init(drv, pdev); |
| 808 | if (ret) |
| 809 | return ret; |
| 810 | } |
| 811 | |
| 812 | return pil_subsys_init(drv, pdev); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 813 | } |
| 814 | |
| 815 | static int __devexit pil_mss_driver_exit(struct platform_device *pdev) |
| 816 | { |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 817 | struct mba_data *drv = platform_get_drvdata(pdev); |
Vikram Mulukutla | 896d058 | 2012-10-17 16:57:46 -0700 | [diff] [blame] | 818 | |
| 819 | subsys_notif_unregister_notifier(drv->adsp_state_notifier, |
| 820 | &adsp_state_notifier_block); |
Seemanta Dutta | a48a11d | 2013-02-19 16:01:22 -0800 | [diff] [blame] | 821 | smsm_state_cb_deregister(SMSM_MODEM_STATE, SMSM_RESET, |
| 822 | smsm_state_cb, drv); |
Stephen Boyd | 3da4fd0 | 2012-07-06 10:00:12 -0700 | [diff] [blame] | 823 | subsys_unregister(drv->subsys); |
| 824 | destroy_ramdump_device(drv->smem_ramdump_dev); |
| 825 | destroy_ramdump_device(drv->ramdump_dev); |
Stephen Boyd | e83a0a2 | 2012-06-29 13:51:27 -0700 | [diff] [blame] | 826 | pil_desc_release(&drv->desc); |
| 827 | pil_desc_release(&drv->q6->desc); |
Matt Wagantall | 4e2599e | 2012-03-21 22:31:35 -0700 | [diff] [blame] | 828 | return 0; |
| 829 | } |
| 830 | |
| 831 | static struct of_device_id mss_match_table[] = { |
| 832 | { .compatible = "qcom,pil-q6v5-mss" }, |
| 833 | {} |
| 834 | }; |
| 835 | |
| 836 | static struct platform_driver pil_mss_driver = { |
| 837 | .probe = pil_mss_driver_probe, |
| 838 | .remove = __devexit_p(pil_mss_driver_exit), |
| 839 | .driver = { |
| 840 | .name = "pil-q6v5-mss", |
| 841 | .of_match_table = mss_match_table, |
| 842 | .owner = THIS_MODULE, |
| 843 | }, |
| 844 | }; |
| 845 | |
| 846 | static int __init pil_mss_init(void) |
| 847 | { |
| 848 | return platform_driver_register(&pil_mss_driver); |
| 849 | } |
| 850 | module_init(pil_mss_init); |
| 851 | |
| 852 | static void __exit pil_mss_exit(void) |
| 853 | { |
| 854 | platform_driver_unregister(&pil_mss_driver); |
| 855 | } |
| 856 | module_exit(pil_mss_exit); |
| 857 | |
| 858 | MODULE_DESCRIPTION("Support for booting modem subsystems with QDSP6v5 Hexagon processors"); |
| 859 | MODULE_LICENSE("GPL v2"); |