| /* Copyright (c) 2015, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of The Linux Foundation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <debug.h> |
| #include <platform/iomap.h> |
| #include <reg.h> |
| #include <target.h> |
| #include <platform.h> |
| #include <uart_dm.h> |
| #include <mmc.h> |
| #include <platform/gpio.h> |
| #include <dev/keys.h> |
| #include <spmi_v2.h> |
| #include <pm8x41.h> |
| #include <board.h> |
| #include <baseband.h> |
| #include <hsusb.h> |
| #include <scm.h> |
| #include <platform/gpio.h> |
| #include <platform/gpio.h> |
| #include <platform/irqs.h> |
| #include <platform/clock.h> |
| #include <crypto5_wrapper.h> |
| #include <partition_parser.h> |
| #include <stdlib.h> |
| |
| #if LONG_PRESS_POWER_ON |
| #include <shutdown_detect.h> |
| #endif |
| |
| #define PMIC_ARB_CHANNEL_NUM 0 |
| #define PMIC_ARB_OWNER_ID 0 |
| #define TLMM_VOL_UP_BTN_GPIO 85 |
| |
| #define FASTBOOT_MODE 0x77665500 |
| #define PON_SOFT_RB_SPARE 0x88F |
| |
| static uint32_t mmc_sdc_base[] = |
| { MSM_SDC1_BASE, MSM_SDC2_BASE }; |
| |
| |
| void target_early_init(void) |
| { |
| #if WITH_DEBUG_UART |
| uart_dm_init(1, 0, BLSP1_UART1_BASE); |
| #endif |
| } |
| |
| void target_mmc_caps(struct mmc_host *host) |
| { |
| host->caps.ddr_mode = 0; |
| host->caps.hs200_mode = 0; |
| host->caps.bus_width = MMC_BOOT_BUS_WIDTH_8_BIT; |
| host->caps.hs_clk_rate = MMC_CLK_50MHZ; |
| } |
| |
| /* Return 1 if vol_up pressed */ |
| static int target_volume_up() |
| { |
| uint8_t status = 0; |
| |
| gpio_tlmm_config(TLMM_VOL_UP_BTN_GPIO, 0, GPIO_INPUT, GPIO_PULL_UP, GPIO_2MA, GPIO_ENABLE); |
| |
| /* Wait for the gpio config to take effect - debounce time */ |
| thread_sleep(10); |
| |
| /* Get status of GPIO */ |
| status = gpio_status(TLMM_VOL_UP_BTN_GPIO); |
| |
| /* Active high signal. */ |
| return status; |
| } |
| |
| /* Return 1 if vol_down pressed */ |
| uint32_t target_volume_down() |
| { |
| /* Volume down button tied in with PMIC RESIN. */ |
| return pm8x41_resin_status(); |
| } |
| |
| static void target_keystatus() |
| { |
| keys_init(); |
| |
| if(target_volume_down()) |
| keys_post_event(KEY_VOLUMEDOWN, 1); |
| |
| if(target_volume_up()) |
| keys_post_event(KEY_VOLUMEUP, 1); |
| } |
| |
| /* Configure PMIC and Drop PS_HOLD for shutdown */ |
| void shutdown_device() |
| { |
| dprintf(CRITICAL, "Going down for shutdown.\n"); |
| |
| /* Configure PMIC for shutdown */ |
| pm8x41_reset_configure(PON_PSHOLD_SHUTDOWN); |
| |
| /* Drop PS_HOLD for MSM */ |
| writel(0x00, MPM2_MPM_PS_HOLD); |
| |
| mdelay(5000); |
| |
| dprintf(CRITICAL, "shutdown failed\n"); |
| |
| ASSERT(0); |
| } |
| |
| |
| void target_init(void) |
| { |
| uint32_t base_addr; |
| uint8_t slot; |
| |
| dprintf(INFO, "target_init()\n"); |
| |
| spmi_init(PMIC_ARB_CHANNEL_NUM, PMIC_ARB_OWNER_ID); |
| |
| target_keystatus(); |
| |
| /* Trying Slot 1*/ |
| slot = 1; |
| base_addr = mmc_sdc_base[slot - 1]; |
| if (mmc_boot_main(slot, base_addr)) |
| { |
| |
| /* Trying Slot 2 next */ |
| slot = 2; |
| base_addr = mmc_sdc_base[slot - 1]; |
| if (mmc_boot_main(slot, base_addr)) { |
| dprintf(CRITICAL, "mmc init failed!"); |
| ASSERT(0); |
| } |
| } |
| #if LONG_PRESS_POWER_ON |
| shutdown_detect(); |
| #endif |
| } |
| |
| void target_serialno(unsigned char *buf) |
| { |
| uint32_t serialno; |
| if (target_is_emmc_boot()) { |
| serialno = mmc_get_psn(); |
| snprintf((char *)buf, 13, "%x", serialno); |
| } |
| } |
| |
| unsigned board_machtype(void) |
| { |
| return LINUX_MACHTYPE_UNKNOWN; |
| } |
| |
| /* Detect the target type */ |
| void target_detect(struct board_data *board) |
| { |
| /* This is already filled as part of board.c */ |
| } |
| |
| /* Detect the modem type */ |
| void target_baseband_detect(struct board_data *board) |
| { |
| uint32_t platform; |
| |
| platform = board->platform; |
| |
| switch(platform) { |
| case MSM8952: |
| case MSM8956: |
| case MSM8976: |
| board->baseband = BASEBAND_MSM; |
| break; |
| default: |
| dprintf(CRITICAL, "Platform type: %u is not supported\n",platform); |
| ASSERT(0); |
| }; |
| } |
| |
| unsigned target_baseband() |
| { |
| return board_baseband(); |
| } |
| |
| unsigned check_reboot_mode(void) |
| { |
| uint32_t restart_reason = 0; |
| |
| /* Read reboot reason and scrub it */ |
| restart_reason = readl(RESTART_REASON_ADDR); |
| writel(0x00, RESTART_REASON_ADDR); |
| |
| return restart_reason; |
| } |
| |
| unsigned check_hard_reboot_mode(void) |
| { |
| uint8_t hard_restart_reason = 0; |
| uint8_t value = 0; |
| |
| /* Read reboot reason and scrub it |
| * Bit-5, bit-6 and bit-7 of SOFT_RB_SPARE for hard reset reason |
| */ |
| value = pm8x41_reg_read(PON_SOFT_RB_SPARE); |
| hard_restart_reason = value >> 5; |
| pm8x41_reg_write(PON_SOFT_RB_SPARE, value & 0x1f); |
| |
| return hard_restart_reason; |
| } |
| |
| int set_download_mode(enum dload_mode mode) |
| { |
| int ret = 0; |
| ret = scm_dload_mode(mode); |
| |
| pm8x41_clear_pmic_watchdog(); |
| |
| return ret; |
| } |
| |
| int emmc_recovery_init(void) |
| { |
| return _emmc_recovery_init(); |
| } |
| |
| void reboot_device(unsigned reboot_reason) |
| { |
| uint8_t reset_type = 0; |
| uint32_t ret = 0; |
| |
| /* Need to clear the SW_RESET_ENTRY register and |
| * write to the BOOT_MISC_REG for known reset cases |
| */ |
| if(reboot_reason != DLOAD) |
| scm_dload_mode(NORMAL_MODE); |
| |
| writel(reboot_reason, RESTART_REASON_ADDR); |
| |
| /* For Reboot-bootloader and Dload cases do a warm reset |
| * For Reboot cases do a hard reset |
| */ |
| if((reboot_reason == FASTBOOT_MODE) || (reboot_reason == DLOAD)) |
| reset_type = PON_PSHOLD_WARM_RESET; |
| else |
| reset_type = PON_PSHOLD_HARD_RESET; |
| |
| pm8x41_reset_configure(reset_type); |
| |
| ret = scm_halt_pmic_arbiter(); |
| if (ret) |
| dprintf(CRITICAL , "Failed to halt pmic arbiter: %d\n", ret); |
| |
| /* Drop PS_HOLD for MSM */ |
| writel(0x00, MPM2_MPM_PS_HOLD); |
| |
| mdelay(5000); |
| |
| dprintf(CRITICAL, "Rebooting failed\n"); |
| } |
| |
| #if USER_FORCE_RESET_SUPPORT |
| /* Return 1 if it is a force resin triggered by user. */ |
| uint32_t is_user_force_reset(void) |
| { |
| uint8_t poff_reason1 = pm8x41_get_pon_poff_reason1(); |
| uint8_t poff_reason2 = pm8x41_get_pon_poff_reason2(); |
| |
| dprintf(SPEW, "poff_reason1: %d\n", poff_reason1); |
| dprintf(SPEW, "poff_reason2: %d\n", poff_reason2); |
| if (pm8x41_get_is_cold_boot() && (poff_reason1 == KPDPWR_AND_RESIN || |
| poff_reason2 == STAGE3)) |
| return 1; |
| else |
| return 0; |
| } |
| #endif |
| |
| unsigned target_pause_for_battery_charge(void) |
| { |
| uint8_t pon_reason = pm8x41_get_pon_reason(); |
| uint8_t is_cold_boot = pm8x41_get_is_cold_boot(); |
| dprintf(INFO, "%s : pon_reason is %d cold_boot:%d\n", __func__, |
| pon_reason, is_cold_boot); |
| /* In case of fastboot reboot,adb reboot or if we see the power key |
| * pressed we do not want go into charger mode. |
| * fastboot reboot is warm boot with PON hard reset bit not set |
| * adb reboot is a cold boot with PON hard reset bit set |
| */ |
| if (is_cold_boot && |
| (!(pon_reason & HARD_RST)) && |
| (!(pon_reason & KPDPWR_N)) && |
| ((pon_reason & USB_CHG) || (pon_reason & DC_CHG) || (pon_reason & CBLPWR_N))) |
| return 1; |
| else |
| return 0; |
| } |