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/* Copyright (c) 2012-2013, 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 <spmi.h>
#include <board.h>
#include <smem.h>
#include <baseband.h>
#include <dev/keys.h>
#include <pm8x41.h>
#include <crypto5_wrapper.h>
extern bool target_use_signed_kernel(void);
static unsigned int target_id;
#define PMIC_ARB_CHANNEL_NUM 0
#define PMIC_ARB_OWNER_ID 0
#define WDOG_DEBUG_DISABLE_BIT 17
#define CE_INSTANCE 2
#define CE_EE 1
#define CE_FIFO_SIZE 64
#define CE_READ_PIPE 3
#define CE_WRITE_PIPE 2
#define CE_ARRAY_SIZE 20
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 = 2;
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 */
uint32_t target_volume_down()
{
/* Volume down button is tied in with RESIN on MSM8974. */
if (pm8x41_get_pmic_rev() == PMIC_VERSION_V2)
return pm8x41_resin_bark_workaround_status();
else
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);
}
/* Set up params for h/w CE. */
void target_crypto_init_params()
{
struct crypto_init_params ce_params;
/* Set up base addresses and instance. */
ce_params.crypto_instance = CE_INSTANCE;
ce_params.crypto_base = MSM_CE2_BASE;
ce_params.bam_base = MSM_CE2_BAM_BASE;
/* Set up BAM config. */
ce_params.bam_ee = CE_EE;
ce_params.pipes.read_pipe = CE_READ_PIPE;
ce_params.pipes.write_pipe = CE_WRITE_PIPE;
/* Assign buffer sizes. */
ce_params.num_ce = CE_ARRAY_SIZE;
ce_params.read_fifo_size = CE_FIFO_SIZE;
ce_params.write_fifo_size = CE_FIFO_SIZE;
crypto_init_params(&ce_params);
}
crypto_engine_type board_ce_type(void)
{
return CRYPTO_ENGINE_TYPE_HW;
}
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();
if (target_use_signed_kernel())
target_crypto_init_params();
/* Display splash screen if enabled */
#if DISPLAY_SPLASH_SCREEN
dprintf(INFO, "Display Init: Start\n");
display_init();
dprintf(INFO, "Display Init: Done\n");
#endif
/* 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)
{
uint32_t platform;
uint32_t platform_subtype;
platform = board->platform;
platform_subtype = board->platform_subtype;
/*
* Look for platform subtype if present, else
* check for platform type to decide on the
* baseband type
*/
switch(platform_subtype) {
case HW_PLATFORM_SUBTYPE_UNKNOWN:
break;
default:
dprintf(CRITICAL, "Platform Subtype : %u is not supported\n",platform_subtype);
ASSERT(0);
};
switch(platform) {
case MSM8974:
board->baseband = BASEBAND_MSM;
break;
case APQ8074:
board->baseband = BASEBAND_APQ;
break;
default:
dprintf(CRITICAL, "Platform type: %u is not supported\n",platform);
ASSERT(0);
};
}
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;
uint32_t soc_ver = 0;
uint32_t restart_reason_addr;
soc_ver = board_soc_version();
if (soc_ver >= BOARD_SOC_VERSION2)
restart_reason_addr = RESTART_REASON_ADDR_V2;
else
restart_reason_addr = RESTART_REASON_ADDR;
/* 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)
{
uint32_t soc_ver = 0;
soc_ver = board_soc_version();
/* Write the reboot reason */
if (soc_ver >= BOARD_SOC_VERSION2)
writel(reboot_reason, RESTART_REASON_ADDR_V2);
else
writel(reboot_reason, RESTART_REASON_ADDR);
/* Configure PMIC for warm reset */
pm8x41_reset_configure(PON_PSHOLD_WARM_RESET);
/* Disable Watchdog Debug.
* Required becuase of a H/W bug which causes the system to
* reset partially even for non watchdog resets.
*/
writel(readl(GCC_WDOG_DEBUG) & ~(1 << WDOG_DEBUG_DISABLE_BIT), GCC_WDOG_DEBUG);
dsb();
/* Wait until the write takes effect. */
while(readl(GCC_WDOG_DEBUG) & (1 << WDOG_DEBUG_DISABLE_BIT));
/* Drop PS_HOLD for MSM */
writel(0x00, MPM2_MPM_PS_HOLD);
mdelay(5000);
dprintf(CRITICAL, "Rebooting failed\n");
}
/* Returns 1 if target supports continuous splash screen. */
int target_cont_splash_screen()
{
switch(board_platform_id())
{
case HW_PLATFORM_SURF:
case HW_PLATFORM_FFA:
default:
return 0;
}
}
unsigned target_pause_for_battery_charge(void)
{
uint8_t pon_reason = pm8x41_get_pon_reason();
/* This function will always return 0 to facilitate
* automated testing/reboot with usb connected.
* uncomment if this feature is needed */
/* if ((pon_reason == USB_CHG) || (pon_reason == DC_CHG))
return 1;*/
return 0;
}