iBoot/target/b184/init.c

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2023-07-08 13:03:17 -07:00
/*
* Copyright (C) 2012-2015 Apple Inc. All rights reserved.
*
* This document is the property of Apple Inc.
* It is considered confidential and proprietary.
*
* This document may not be reproduced or transmitted in any form,
* in whole or in part, without the express written permission of
* Apple Inc.
*/
#include <debug.h>
#include <drivers/flash_nor.h>
#include <drivers/iic.h>
#include <drivers/power.h>
#include <lib/devicetree.h>
#include <lib/env.h>
#include <lib/mib.h>
#include <lib/syscfg.h>
#include <platform.h>
#include <platform/gpio.h>
#include <platform/gpiodef.h>
#include <platform/memmap.h>
#include <sys.h>
#include <sys/boot.h>
#include <sys/menu.h>
#include <sys/task.h>
#include <target.h>
static bool gpio_board_rev_valid;
static u_int32_t gpio_board_rev;
MIB_CONSTANT(kMIBTargetOsPictureScale, kOIDTypeUInt32, 2);
MIB_CONSTANT(kMIBTargetPictureRotate, kOIDTypeInt32, 0);
static u_int32_t b184_get_board_rev(void)
{
if (!gpio_board_rev_valid) {
gpio_configure(GPIO_BOARD_REV0, GPIO_CFG_IN);
gpio_configure(GPIO_BOARD_REV1, GPIO_CFG_IN);
gpio_configure(GPIO_BOARD_REV2, GPIO_CFG_IN);
gpio_configure(GPIO_BOARD_REV3, GPIO_CFG_IN);
gpio_configure_pupdn(GPIO_BOARD_REV0, GPIO_PUP);
gpio_configure_pupdn(GPIO_BOARD_REV1, GPIO_PUP);
gpio_configure_pupdn(GPIO_BOARD_REV2, GPIO_PUP);
gpio_configure_pupdn(GPIO_BOARD_REV3, GPIO_PUP);
spin(100); // Wait 100us
gpio_board_rev =
(gpio_read(GPIO_BOARD_REV3) << 3) |
(gpio_read(GPIO_BOARD_REV2) << 2) |
(gpio_read(GPIO_BOARD_REV1) << 1) |
(gpio_read(GPIO_BOARD_REV0) << 0);
gpio_configure(GPIO_BOARD_REV0, GPIO_CFG_DFLT);
gpio_configure(GPIO_BOARD_REV1, GPIO_CFG_DFLT);
gpio_configure(GPIO_BOARD_REV2, GPIO_CFG_DFLT);
gpio_configure(GPIO_BOARD_REV3, GPIO_CFG_DFLT);
gpio_board_rev_valid = true;
}
return gpio_board_rev;
}
void target_early_init(void)
{
}
void target_late_init(void)
{
}
void target_init(void)
{
#if WITH_HW_FLASH_NOR
flash_nor_init(SPI_NOR0);
#endif
}
void target_quiesce_hardware(void)
{
}
void target_poweroff(void)
{
}
int target_bootprep(enum boot_target target)
{
return 0;
}
bool target_should_recover(void)
{
return platform_get_request_dfu2() && power_has_usb();
}
bool target_should_poweron(bool *cold_button_boot)
{
#if WITH_HW_POWER
if (power_get_boot_flag() == kPowerBootFlagColdButton) *cold_button_boot = true;
#else
*cold_button_boot = false;
#endif // WITH_HW_POWER
return !*cold_button_boot || platform_get_request_dfu1();
}
bool target_should_poweroff(bool at_boot)
{
return platform_get_request_dfu1() && (!at_boot || !power_has_usb());
}
#if APPLICATION_IBOOT
void target_watchdog_tickle(void)
{
u_int32_t value = gpio_read(GPIO_WDOG_TICKLE);
gpio_write(GPIO_WDOG_TICKLE, value ^ 1);
}
#endif // APPLICATION_IBOOT
#if WITH_ENV
void target_setup_default_environment(void)
{
env_set("boot-device", "asp_nand", 0);
}
#endif // WITH_ENV
bool target_has_tristar2(void)
{
return true; // TODO: Does it have tristar2?
}
#if WITH_DEVICETREE
int target_update_device_tree(void)
{
#if WITH_HW_DISPLAY_EDP
DTNode *clcd_node = NULL, *backlight_node = NULL, *lcd_node = NULL;
#endif
DTNode *node;
uint32_t propSize;
char *propName;
void *propData;
// Store secondary mac addresses into products node
if (FindNode(0, "product", &node)) {
propName = "mac-address-wifi1";
if (FindProperty(node, &propName, &propData, &propSize)) {
if (env_get("wifi1addr")) {
env_get_ethaddr("wifi1addr", propData);
} else {
int retlen = 0;
if (!target_get_property(TARGET_PROPERTY_WIFI1_MACADDR, propData, 6, &retlen)) {
propName[0] = '~';
}
}
}
propName = "mac-address-ethernet1";
if (FindProperty(node, &propName, &propData, &propSize)) {
if (env_get("eth1addr")) {
env_get_ethaddr("eth1addr", propData);
} else {
int retlen = 0;
if (!target_get_property(TARGET_PROPERTY_ETH1_MACADDR, propData, 6, &retlen)) {
propName[0] = '~';
}
}
}
propName = "mac-address-bluetooth1";
if (FindProperty(node, &propName, &propData, &propSize)) {
if (env_get("bt1addr")) {
env_get_ethaddr("bt1addr", propData);
} else {
int retlen = 0;
if (!target_get_property(TARGET_PROPERTY_BT1_MACADDR, propData, 6, &retlen)) {
propName[0] = '~';
}
}
}
}
// Store second wlan mac address into wlan1 node
if (FindNode(0, "arm-io/usb-complex/usb-ehci1/wlan1", &node)) {
propName = "local-mac-address";
if (FindProperty(node, &propName, &propData, &propSize)) {
if (env_get("wifi1addr")) {
env_get_ethaddr("wifi1addr", propData);
} else {
int retlen = 0;
if (!target_get_property(TARGET_PROPERTY_WIFI1_MACADDR, propData, 6, &retlen)) {
propName[0] = '~';
}
}
}
}
// Add bluetooth, ethernet second mac address when node is available
// <rdar://problem/14324725> B184 /12A43 : bluetooth not responding
// TriStar 1 on older systems
if (!target_has_tristar2()) {
if (FindNode(0, "arm-io/i2c2/tristar", &node)) {
propName = "compatible";
if (FindProperty(node, &propName, &propData, &propSize)) {
strlcpy(propData, "tristar,cbtl1608", kPropNameLength);
}
}
}
// Update charger calibration data
if (FindNode(0, "charger", &node)) {
propName = "usb-input-limit-calibration";
if (FindProperty(node, &propName, &propData, &propSize)) {
syscfgCopyDataForTag('CBAT', propData, propSize);
}
}
return 0;
}
#endif // WITH_DEVICETREE