109 lines
2.6 KiB
C
109 lines
2.6 KiB
C
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/*
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* Copyright (c) 2024 hydrogenium2020-offical
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* Copyright (c) 2018 naehrwert
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "types.h"
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#include "printf.h"
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#include "string.h"
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#include "t124.h"
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#include "se.h"
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#include "usb.h"
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#include "bootrom.h"
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#include "fuse.h"
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#include "mc.h"
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#include "clock.h"
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#include "util.h"
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#include "pinmux.h"
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#include "gpio.h"
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#include "i2c.h"
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static inline u32 read32(uintptr_t addr) {
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return *(vu32 *)addr;
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}
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static inline void write32(uintptr_t addr, u32 val) {
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*(vu32 *)addr = val;
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}
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static inline void or32(uintptr_t addr, u32 val) {
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write32(addr, read32(addr) | val);
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}
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void *memset(void *s, int c, size_t n) {
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unsigned char* p = (unsigned char*)s;
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for (size_t i = 0; i < n; i++) {
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*p++ = (unsigned char)c;
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}
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return s;
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}
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#define PMC_CNTRL 0x000
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#define PMC_CNTRL_MAIN_RST (1 << 4)
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#define PMC_SCRATCH0 0x050
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#define PMC_SCRATCH0_MODE_RCM (1 << 1)
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void enter_rcm() {
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or32(PMC_BASE + PMC_SCRATCH0, PMC_SCRATCH0_MODE_RCM);
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or32(PMC_BASE + PMC_CNTRL, PMC_CNTRL_MAIN_RST);
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}
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void config_hw(){
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printf_("Starting Initing hardware.");
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fuse_disable_program();
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printf_("[x] fuse program disabled\n");
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mc_enable();
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printf_("[x] mc setup\n");
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// Initialize counters, CLKM, BPMP(also called AVP in T124/T132) and other clocks based on 38.4MHz oscillator.
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config_oscillators();
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printf_("[x] Oscillators setup at 12Mhz\n");
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printf_("\tCLK_M:12Mhz\n");
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printf_("\tCLK_S:32.768khz\n");
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printf_("\tSystem CLK:127.5Mhz\n");
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printf_("\tHCLK: 127.5Mhz\n");
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printf_("\tPCLK: 31.875Mhz\n");
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config_gpios();
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printf_("[x] GPIO setup\n");
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clock_enable_cl_dvfs();
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printf_("[x] DVFS setup\n");
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//FIXME I2C Doesn't work!!!
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printf_("Fixme.I2C doesn't work");
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// clock_enable_i2c(I2C_1);
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// clock_enable_i2c(I2C_5);
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}
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__attribute__((section(".init")))
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void _start() {
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// u8 *buffer = (u8*)0x40020000;
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printf_("gardenia is booting.");
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//printf_("%p",&_start);
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//pivot_stack(0x200);
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//Setting up hardware
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dump_pkc();
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config_hw();
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enter_rcm();
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}
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