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fusee_cpp: implement SDRAM initialization

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This commit is contained in:
Michael Scire
2021-08-22 02:32:05 -07:00
committed by SciresM
parent f2a1c60218
commit 349a16ce39
59 changed files with 4088 additions and 17 deletions
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20
libraries/libexosphere/source/libc/libgcc_thumb_case.arch.arm.s
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@@ -52,3 +52,23 @@ __gnu_thumb1_case_uhi:
bx lr
.type __gnu_thumb1_case_uhi, %function
.size __gnu_thumb1_case_uhi, .-__gnu_thumb1_case_uhi
.section .text.__gnu_thumb1_case_si, "ax", %progbits
.globl __gnu_thumb1_case_si
.align 0
.thumb_func
.syntax unified
__gnu_thumb1_case_si:
push {r0, r1}
mov r1, lr
adds.n r1, r1, #2
lsrs r1, r1, #2
lsls r0, r0, #2
lsls r1, r1, #2
ldr r0, [r1, r0]
adds r0, r0, r1
mov lr, r0
pop {r0, r1}
bx lr
.type __gnu_thumb1_case_si, %function
.size __gnu_thumb1_case_si, .-__gnu_thumb1_case_si

12
libraries/libexosphere/source/pmic/pmic_api.cpp
View File

@@ -35,6 +35,8 @@ namespace ams::pmic {
constexpr inline int Max77620RegisterCnfgBbc = 0x04;
constexpr inline int Max77620RegisterOnOffStat = 0x15;
constexpr inline int Max77620RegisterSd0 = 0x16;
constexpr inline int Max77620RegisterSd1 = 0x17;
constexpr inline int Max77620RegisterCnfg2Sd = 0x22;
constexpr inline int Max77620RegisterCnfg1Ldo8 = 0x33;
constexpr inline int Max77620RegisterGpio0 = 0x36;
constexpr inline int Max77620RegisterAmeGpio = 0x40;
@@ -276,4 +278,14 @@ namespace ams::pmic {
i2c::SendByte(i2c::Port_5, I2cAddressMax77620Pmic, Max77620RegisterCnfg1Ldo8, 0xE8);
}
void EnableVddMemory(fuse::SocType soc_type) {
/* Disable remote sense for Sd1. */
i2c::SendByte(i2c::Port_5, I2cAddressMax77620Pmic, Max77620RegisterCnfg2Sd, 0x05);
/* On Erista, set Sd1 voltage. */
if (soc_type == fuse::SocType_Erista) {
SetVoltage(Max77620RegisterSd1, 1100);
}
}
}