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fusee_cpp: implement sd card init

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This commit is contained in:
Michael Scire 2021-08-23 07:11:28 -07:00 committed by SciresM
parent 25cd3d17de
commit 49d0a51d6b
6 changed files with 167 additions and 3 deletions
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3
fusee_cpp/program/program.ld
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@ -114,8 +114,11 @@ SECTIONS
.data :
{
FILL(0x00000000)
*(.data .data.* .gnu.linkonce.d.*)
SORT(CONSTRUCTORS)
. = ALIGN(64) - 1;
BYTE(0x00);
} >main AT>glob
__bss_start__ = .;

19
fusee_cpp/program/source/fusee_exception_handler.cpp
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@ -19,6 +19,10 @@
namespace ams::nxboot {
NORETURN void ErrorStop() {
/* ABORT? */
*reinterpret_cast<volatile u32 *>(0x40038000) = 0xDEADDEAD;
*reinterpret_cast<volatile u32 *>(0x7000E400) = 0x10;
/* Halt ourselves. */
while (true) {
reg::Write(secmon::MemoryRegionPhysicalDeviceFlowController.GetAddress() + FLOW_CTLR_HALT_COP_EVENTS, FLOW_REG_BITS_ENUM(HALT_COP_EVENTS_MODE, FLOW_MODE_STOP),
@ -37,15 +41,30 @@ namespace ams::diag {
NORETURN void AbortImpl(const char *file, int line, const char *func, const char *expr, u64 value, const char *format, ...) {
AMS_UNUSED(file, line, func, expr, value, format);
{
u32 lr;
__asm__ __volatile__("mov %0, lr" : "=r"(lr) :: "memory");
*reinterpret_cast<volatile u32 *>(0x40038004) = lr;
}
ams::nxboot::ErrorStop();
}
NORETURN void AbortImpl(const char *file, int line, const char *func, const char *expr, u64 value) {
AMS_UNUSED(file, line, func, expr, value);
{
u32 lr;
__asm__ __volatile__("mov %0, lr" : "=r"(lr) :: "memory");
*reinterpret_cast<volatile u32 *>(0x40038004) = lr;
}
ams::nxboot::ErrorStop();
}
NORETURN void AbortImpl() {
{
u32 lr;
__asm__ __volatile__("mov %0, lr" : "=r"(lr) :: "memory");
*reinterpret_cast<volatile u32 *>(0x40038004) = lr;
}
ams::nxboot::ErrorStop();
}

18
fusee_cpp/program/source/fusee_main.cpp
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@ -16,6 +16,7 @@
#include <exosphere.hpp>
#include "fusee_secure_initialize.hpp"
#include "fusee_sdram.hpp"
#include "fusee_sd_card.hpp"
namespace ams::nxboot {
@ -26,6 +27,23 @@ namespace ams::nxboot {
/* Initialize Sdram. */
InitializeSdram();
/* Initialize SD card. */
Result result = InitializeSdCard();
/* DEBUG: Check SD card connection. */
{
*reinterpret_cast<volatile u32 *>(0x40038000) = 0xAAAAAAAA;
*reinterpret_cast<volatile u32 *>(0x40038004) = result.GetValue();
if (R_SUCCEEDED(result)) {
sdmmc::SpeedMode sm;
sdmmc::BusWidth bw;
*reinterpret_cast<volatile u32 *>(0x40038008) = CheckSdCardConnection(std::addressof(sm), std::addressof(bw)).GetValue();
*reinterpret_cast<volatile u32 *>(0x4003800C) = static_cast<u32>(sm);
*reinterpret_cast<volatile u32 *>(0x40038010) = static_cast<u32>(bw);
}
*reinterpret_cast<volatile u32 *>(0x7000E400) = 0x10;
}
/* TODO */
AMS_INFINITE_LOOP();
}

98
fusee_cpp/program/source/fusee_sd_card.cpp Normal file
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@ -0,0 +1,98 @@
/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <exosphere.hpp>
#include "fusee_sd_card.hpp"
namespace ams::nxboot {
namespace {
constexpr inline auto SdCardPort = sdmmc::Port_SdCard0;
constexpr inline const uintptr_t APB = secmon::MemoryRegionPhysicalDeviceApbMisc.GetAddress();
alignas(0x10) constinit u8 g_sd_work_buffer[sdmmc::SdCardWorkBufferSize];
void ConfigureInitialSdCardPinmux() {
/* Normally, these pints get configured by boot sysmodule during initial pinmux config. */
/* However, they're required to access the SD card, so we must do them ahead of time. */
reg::ReadWrite(APB + PINMUX_AUX_SDMMC1_CLK, PINMUX_REG_BITS_ENUM(AUX_E_INPUT, ENABLE),
PINMUX_REG_BITS_ENUM(AUX_TRISTATE, PASSTHROUGH),
PINMUX_REG_BITS_ENUM(AUX_PUPD, PULL_DOWN),
PINMUX_REG_BITS_ENUM(AUX_SDMMC1_CLK_PM, SDMMC1));
reg::ReadWrite(APB + PINMUX_AUX_SDMMC1_CMD, PINMUX_REG_BITS_ENUM(AUX_E_INPUT, ENABLE),
PINMUX_REG_BITS_ENUM(AUX_TRISTATE, PASSTHROUGH),
PINMUX_REG_BITS_ENUM(AUX_PUPD, PULL_UP),
PINMUX_REG_BITS_ENUM(AUX_SDMMC1_CMD_PM, SDMMC1));
reg::ReadWrite(APB + PINMUX_AUX_SDMMC1_DAT3, PINMUX_REG_BITS_ENUM(AUX_E_INPUT, ENABLE),
PINMUX_REG_BITS_ENUM(AUX_TRISTATE, PASSTHROUGH),
PINMUX_REG_BITS_ENUM(AUX_PUPD, PULL_UP),
PINMUX_REG_BITS_ENUM(AUX_SDMMC1_DAT3_PM, SDMMC1));
reg::ReadWrite(APB + PINMUX_AUX_SDMMC1_DAT2, PINMUX_REG_BITS_ENUM(AUX_E_INPUT, ENABLE),
PINMUX_REG_BITS_ENUM(AUX_TRISTATE, PASSTHROUGH),
PINMUX_REG_BITS_ENUM(AUX_PUPD, PULL_UP),
PINMUX_REG_BITS_ENUM(AUX_SDMMC1_DAT2_PM, SDMMC1));
reg::ReadWrite(APB + PINMUX_AUX_SDMMC1_DAT1, PINMUX_REG_BITS_ENUM(AUX_E_INPUT, ENABLE),
PINMUX_REG_BITS_ENUM(AUX_TRISTATE, PASSTHROUGH),
PINMUX_REG_BITS_ENUM(AUX_PUPD, PULL_UP),
PINMUX_REG_BITS_ENUM(AUX_SDMMC1_DAT1_PM, SDMMC1));
reg::ReadWrite(APB + PINMUX_AUX_SDMMC1_DAT0, PINMUX_REG_BITS_ENUM(AUX_E_INPUT, ENABLE),
PINMUX_REG_BITS_ENUM(AUX_TRISTATE, PASSTHROUGH),
PINMUX_REG_BITS_ENUM(AUX_PUPD, PULL_UP),
PINMUX_REG_BITS_ENUM(AUX_SDMMC1_DAT0_PM, SDMMC1));
reg::ReadWrite(APB + PINMUX_AUX_DMIC3_CLK, PINMUX_REG_BITS_ENUM(AUX_E_OD, DISABLE),
PINMUX_REG_BITS_ENUM(AUX_E_INPUT, DISABLE),
PINMUX_REG_BITS_ENUM(AUX_TRISTATE, PASSTHROUGH),
PINMUX_REG_BITS_ENUM(AUX_SDMMC1_DAT0_PM, RSVD2));
}
}
Result InitializeSdCard() {
/* Perform initial pinmux config to enable sd card access. */
ConfigureInitialSdCardPinmux();
/* Initialize the SD card. */
sdmmc::Initialize(SdCardPort);
/* Set the SD card work buffer. */
sdmmc::SetSdCardWorkBuffer(SdCardPort, g_sd_work_buffer, sizeof(g_sd_work_buffer));
/* Activate the SD card. */
return sdmmc::Activate(SdCardPort);
}
Result CheckSdCardConnection(sdmmc::SpeedMode *out_sm, sdmmc::BusWidth *out_bw) {
return sdmmc::CheckSdCardConnection(out_sm, out_bw, SdCardPort);
}
Result ReadSdCard(void *dst, size_t size, size_t sector_index, size_t sector_count) {
/* TODO */
return ResultSuccess();
}
Result WriteSdCard(size_t sector_index, size_t sector_count, const void *src, size_t size) {
/* TODO */
return ResultSuccess();
}
}

26
fusee_cpp/program/source/fusee_sd_card.hpp Normal file
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@ -0,0 +1,26 @@
/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <vapours.hpp>
#pragma once
namespace ams::nxboot {
Result InitializeSdCard();
Result CheckSdCardConnection(sdmmc::SpeedMode *out_sm, sdmmc::BusWidth *out_bw);
Result ReadSdCard(void *dst, size_t size, size_t sector_index, size_t sector_count);
Result WriteSdCard(size_t sector_index, size_t sector_count, const void *src, size_t size);
}

6
libraries/libvapours/include/vapours/sdmmc/sdmmc_build_config.hpp
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@ -32,9 +32,9 @@
//#define AMS_SDMMC_USE_OS_EVENTS
//#define AMS_SDMMC_USE_OS_TIMER
#define AMS_SDMMC_USE_UTIL_TIMER
//#define AMS_SDMMC_ENABLE_MMC_HS400
//#define AMS_SDMMC_ENABLE_SD_UHS_I
//#define AMS_SDMMC_SET_PLLC4_BASE
#define AMS_SDMMC_ENABLE_MMC_HS400
#define AMS_SDMMC_ENABLE_SD_UHS_I
#define AMS_SDMMC_SET_PLLC4_BASE
//#define AMS_SDMMC_USE_SD_CARD_DETECTOR
#elif defined(ATMOSPHERE_IS_MESOSPHERE)