Fix: Correct the copyright and avoid repeated inclusion of header files.

loader/bootrom.h

@@ -20,6 +20,4 @@
 #define BOOTROM_USB_WRITE_EP1    0x001065C0
 #define BOOTROM_USB_READ_EP1    0x00106612
 
-
-
 #endif

loader/gpio.c

@@ -1,6 +1,7 @@
 /*
 * Copyright (c) 2024 hydrogenium2020-offical
 * Copyright (c) 2018 naehrwert
+* Copyright (c) 2018-2022 CTCaer
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,

loader/gpio.h

@@ -1 +1,23 @@
+/*
+* Copyright (c) 2024 hydrogenium2020-offical
+* Copyright (c) 2018 naehrwert
+* Copyright (c) 2019-2023 CTCaer
+*
+* 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/>.
+*/
+#ifndef _T124_GPIO_H_
+#define _T124_GPIO_H_
+
 void config_gpios();
+
+#endif

loader/i2c.c

@@ -0,0 +1,39 @@
+/*
+* Copyright (c) 2024 hydrogenium2020-offical
+* Copyright (c) 2018 naehrwert
+* Copyright (c) 2020 CTCaer
+*
+* 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 "types.h"
+#include "i2c.h"
+void i2c_init(u32 i2c_idx)
+{
+	vu32 *base = (vu32 *)(I2C_BASE + (u32)_i2c_base_offsets[i2c_idx]);
+
+	base[I2C_CLK_DIVISOR] = (5 << 16) | 1; // SF mode Div: 6, HS mode div: 2.
+	base[I2C_BUS_CLEAR_CONFIG] = (9 << 16) | BC_TERMINATE | BC_ENABLE;
+
+	// Load configuration.
+	_i2c_load_cfg_wait(base);
+
+	for (u32 i = 0; i < 10; i++)
+	{
+		if (base[I2C_INT_STATUS] & BUS_CLEAR_DONE)
+			break;
+		usleep(25);
+	}
+
+	(vu32)base[I2C_BUS_CLEAR_STATUS];
+	base[I2C_INT_STATUS] = base[I2C_INT_STATUS];
+}

loader/i2c.h

@@ -1,22 +1,7 @@
-/*
-* Copyright (c) 2018 naehrwert
-*
-* 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/>.
-*/
-
 /*
 * Copyright (c) 2024 hydrogenium2020-offical
 * Copyright (c) 2018 naehrwert
+* Copyright (c) 2020 CTCaer
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
@@ -42,6 +27,6 @@
 #define I2C_5 4
 #define I2C_6 5
 
-void i2c_init(u32 idx);
+void i2c_init(u32 i2c_idx);
 
 #endif

loader/main.c

@@ -1,6 +1,7 @@
 /*
 * Copyright (c) 2024 hydrogenium2020-offical
 * Copyright (c) 2018 naehrwert
+* Copyright (c) 2018-2023 CTCaer
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
@@ -17,9 +18,7 @@
 #include "types.h"
 #include "printf.h"
 #include "string.h"
-
 #include "t124.h"
-#include "se.h"
 #include "usb.h"
 #include "bootrom.h"
 #include "fuse.h"
@@ -28,8 +27,9 @@
 #include "util.h"
 #include "pinmux.h"
 #include "gpio.h"
-#include "i2c.h"
 #include "uart.h"
+#include "sdram.h"
+#include "memory_map.h"
 
 static inline u32 read32(uintptr_t addr) {
     return *(vu32 *)addr;
@@ -76,36 +76,47 @@ void config_hw(){
 	// uart_init(UART_D, 115200, UART_AO_TX_AO_RX);
 	// uart_invert(UART_D, 0, UART_INVERT_TXD);
 
-    uart_send(UART_D, (u8 *)"hekate: Hello!\r\n", 16);
+    //uart_send(UART_D, (u8 *)"hekate: Hello!\r\n", 16);
-	uart_wait_xfer(UART_D, UART_TX_IDLE);
+	//uart_wait_xfer(UART_D, UART_TX_IDLE);
 
-    mc_enable();
+    // mc_enable();
-    printf_("[x] mc setup\n");
+    // printf_("[x] mc setup\n");
 
     config_gpios();
     printf_("[x] GPIO setup\n");
 
+    sdram_init();
+    printf_("[x] SDRAM setup\n");
+
 }
 extern void pivot_stack(u32 stack_top);
 __attribute__((section(".init")))
 void _start() {
     // u8 *buffer = (u8*)0x40020000;
-    printf_("gardenia is booting.");
+    printf_("gardenia is booting.\n");
 
     //printf_("%p",&_start);
-    //pivot_stack(0x200);
 
     //Setting up hardware
     dump_pkc();
     config_hw();
     
-    //FIXME!!!->init memory
+    printf_("%d\n",MMIO_REG32(0x90010000,0));
+    MMIO_REG32(0x90010000,0)=0x123456;
+    printf_("%d\n",MMIO_REG32(0x90010000,0));
+    sleep(200);
+    printf_("%d\n",MMIO_REG32(0x90010000,0));
+
+    u32 total_size = (MC(MC_EMEM_CFG) >>
+			MC_EMEM_CFG_SIZE_MB_SHIFT) & MC_EMEM_CFG_SIZE_MB_MASK;
+
+	printf_("Total SDRAM (MB): %u\n", total_size);
+    
     //Pivot the stack so we have enough space.
-//	pivot_stack(0x40000000);
+	pivot_stack(IPL_STACK_TOP);
-
+    printf_("alive");
-	//Tegra/Horizon configuration goes to 0x80000000+, package2 goes to 0xA9800000, we place our heap in between.
-//	heap_init(0x90020000);
 
+	heap_init(IPL_HEAP_START);
 
     enter_rcm();
 }

loader/pmc.h

@@ -1,6 +1,7 @@
 /*
 * Copyright (c) 2024 hydrogenium2020-offical
 * Copyright (c) 2018 naehrwert
+* Copyright (c) 2020 CTCaer
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
@@ -14,9 +15,44 @@
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
+
+#ifndef _T124_PMC_H_
+#define _T124_PMC_H_
+
 #include "types.h"
 #define APBDEV_PMC_OSC_EDPD_OVER     0x1A4
+
+//SDRAM
+#define APBDEV_PMC_VDDP_SEL 		0x1CC
+#define APBDEV_PMC_DDR_PWR 			0xE8
+#define APBDEV_PMC_NO_IOPOWER 		0x44
+#define APBDEV_PMC_REG_SHORT 		0x2CC
+#define APBDEV_PMC_DDR_CFG 			0x1D0
+#define APBDEV_PMC_POR_DPD_CTRL 	0x264
+#define APBDEV_PMC_IO_DPD3_REQ		0x45c
 enum {
 	PMC_XOFS_SHIFT = 1,
 	PMC_XOFS_MASK = 0x3f << PMC_XOFS_SHIFT
 };
+
+enum {
+	PMC_POR_DPD_CTRL_MEM0_ADDR0_CLK_SEL_DPD_MASK = 1 << 0,
+	PMC_POR_DPD_CTRL_MEM0_ADDR1_CLK_SEL_DPD_MASK = 1 << 1,
+	PMC_POR_DPD_CTRL_MEM0_HOLD_CKE_LOW_OVR_MASK = 1 << 31,
+};
+enum {
+	PMC_DDR_CFG_PKG_MASK = 1 << 0,
+	PMC_DDR_CFG_IF_MASK = 1 << 1,
+	PMC_DDR_CFG_XM0_RESET_TRI_MASK = 1 << 12,
+	PMC_DDR_CFG_XM0_RESET_DPDIO_MASK = 1 << 13,
+};
+enum {
+	PMC_DDR_PWR_EMMC_MASK = 1 << 1,
+	PMC_DDR_PWR_VAL_MASK = 1 << 0,
+};
+enum {
+	PMC_NO_IOPOWER_MEM_MASK = 1 << 7,
+	PMC_NO_IOPOWER_MEM_COMP_MASK = 1 << 16,
+};
+
+#endif

loader/timer.h

@@ -14,5 +14,9 @@
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
+#ifndef _T124_TIMER_H_
+#define _T124_TIMER_H_
+
 #define TIMERUS_CNTR_1US   (0x10 + 0x0)
-#define TIMERUS_USEC_CFG   (0x10 + 0x4)
+
+#endif

loader/uart.c

@@ -1,3 +1,21 @@
+/*
+* Copyright (c) 2018 naehrwert
+* Copyright (c) 2019-2022 CTCaer
+* Copyright (c) 2024 hydrogenium2020-offical
+*
+* 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 "uart.h"
 #include "t124.h"
 #include "util.h"

loader/uart.h

@@ -1,3 +1,23 @@
+/*
+* Copyright (c) 2018 naehrwert
+* Copyright (c) 2019-2020 CTCaer
+* Copyright (c) 2024 hydrogenium2020-offical
+*
+* 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/>.
+*/
+#ifndef _T124_UART_H_
+#define _T124_UART_H_
+
 #include "types.h"
 #define UART_A 0
 #define UART_B 1
@@ -81,3 +101,5 @@ void uart_wait_xfer(u32 idx, u32 which);
 void uart_invert(u32 idx, u32 enable, u32 invert_mask);
 void uart_init(u32 idx, u32 baud, u32 mode);
 void uart_send(u32 idx, const u8 *buf, u32 len);
+
+#endif

loader/usb.c

@@ -1,6 +1,5 @@
 /*
 * Copyright (c) 2024 hydrogenium2020-offical
-* Copyright (c) 2018 naehrwert
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,

loader/usb.h

@@ -1,6 +1,5 @@
 /*
 * Copyright (c) 2024 hydrogenium2020-offical
-* Copyright (c) 2018 naehrwert
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
@@ -14,8 +13,8 @@
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-#ifndef _T124_UTIL_H_
+#ifndef _T124_USB_H_
-#define _T124_UTIL_H_
+#define _T124_USB_H_
 #include "types.h"
 #define USB_MAX_TXFR_BYTES 0x1000
 u32 _usb_log(char *msg);

loader/util.c

@@ -25,3 +25,21 @@ void sleep(u32 ticks)
 	while (TIMER0(TIMERUS_CNTR_1US) - start <= ticks)
 		;
 }
+// static inline void setbits32(uint32_t bits, void *addr)
+// {
+// 	write32(addr, read32(addr) | bits);
+// }
+
+// static inline void clrbits32(uint32_t bits, void *addr)
+// {
+// 	write32(addr, read32(addr) & ~bits);
+// }
+
+
+// void clrsetbits32(addr, mask, set){
+// 	MMIO_REG32(addr,0)=MMIO_REG32(addr,0) &~(mask) | (value & mask);
+// }
+// static void writebits(uint32_t value, uint32_t *addr, uint32_t mask)
+// {
+// 	clrsetbits32(addr, mask, (value & mask));
+// }

loader/util.h

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2024 hydrogenium2020-offical
-* Copyright (c) 2018 naehrwert
+ * Copyright (c) 2019 CTCaer
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -14,5 +14,10 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+#ifndef _T124_UTIL_H_
+#define _T124_UTIL_H_
+
 #include "types.h"
 void sleep(u32 ticks);
+
+#endif