| /* |
| * Copyright (c) 2012, Code Aurora Forum. 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 Google, Inc. 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE 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 <spmi.h> |
| #include <board.h> |
| #include <smem.h> |
| #include <baseband.h> |
| #include <dev/keys.h> |
| #include <pm8x41.h> |
| |
| static unsigned int target_id; |
| |
| #define PMIC_ARB_CHANNEL_NUM 0 |
| #define PMIC_ARB_OWNER_ID 0 |
| |
| |
| static uint32_t mmc_sdc_base[] = |
| { MSM_SDC1_BASE, MSM_SDC2_BASE, MSM_SDC3_BASE, MSM_SDC4_BASE }; |
| |
| void target_early_init(void) |
| { |
| #if WITH_DEBUG_UART |
| uart_dm_init(1, 0, BLSP1_UART1_BASE); |
| #endif |
| } |
| |
| /* Return 1 if vol_up pressed */ |
| static int target_volume_up() |
| { |
| uint8_t status = 0; |
| struct pm8x41_gpio gpio; |
| |
| /* CDP vol_up seems to be always grounded. So gpio status is read as 0, |
| * whether key is pressed or not. |
| * Ignore volume_up key on CDP for now. |
| */ |
| if (board_hardware_id() == HW_PLATFORM_SURF) |
| return 0; |
| |
| /* Configure the GPIO */ |
| gpio.direction = PM_GPIO_DIR_IN; |
| gpio.function = 0; |
| gpio.pull = PM_GPIO_PULL_UP_30; |
| gpio.vin_sel = 0; |
| |
| pm8x41_gpio_config(5, &gpio); |
| |
| /* Get status of P_GPIO_5 */ |
| pm8x41_gpio_get(5, &status); |
| |
| return !status; /* active low */ |
| } |
| |
| /* Return 1 if vol_down pressed */ |
| int target_volume_down() |
| { |
| return pm8x41_vol_down_key_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); |
| } |
| |
| 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); |
| } |
| } |
| } |
| |
| unsigned board_machtype(void) |
| { |
| return target_id; |
| } |
| |
| /* Do any target specific intialization needed before entering fastboot mode */ |
| void target_fastboot_init(void) |
| { |
| /* Set the BOOT_DONE flag in PM8921 */ |
| pm8x41_set_boot_done(); |
| } |
| |
| /* Detect the target type */ |
| void target_detect(struct board_data *board) |
| { |
| board->target = LINUX_MACHTYPE_UNKNOWN; |
| } |
| |
| /* Detect the modem type */ |
| void target_baseband_detect(struct board_data *board) |
| { |
| /* Check for baseband variants. Default to MSM */ |
| if (board->platform_subtype == HW_PLATFORM_SUBTYPE_MDM) |
| board->baseband = BASEBAND_MDM; |
| else |
| board->baseband = BASEBAND_MSM; |
| } |
| |
| void target_serialno(unsigned char *buf) |
| { |
| unsigned int serialno; |
| if (target_is_emmc_boot()) { |
| serialno = mmc_get_psn(); |
| snprintf((char *)buf, 13, "%x", serialno); |
| } |
| } |
| |
| 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; |
| } |
| |
| void reboot_device(unsigned reboot_reason) |
| { |
| /* Write the reboot reason */ |
| writel(reboot_reason, RESTART_REASON_ADDR); |
| |
| /* Configure PMIC for warm reset */ |
| pm8x41_reset_configure(PON_PSHOLD_WARM_RESET); |
| |
| /* Drop PS_HOLD for MSM */ |
| writel(0x00, MPM2_MPM_PS_HOLD); |
| |
| mdelay(5000); |
| |
| dprintf(CRITICAL, "Rebooting failed\n"); |
| } |