diff options
Diffstat (limited to 'kernel.c')
| -rw-r--r-- | kernel.c | 28 |
1 files changed, 25 insertions, 3 deletions
@@ -1,6 +1,7 @@ #include "uart.h" #include "demo_functionality.h" #include "paging.h" +#include "interrupts.h" void kernel_main(uint32_t r0, uint32_t r1, uint32_t atags) { @@ -21,6 +22,10 @@ void kernel_main(uint32_t r0, uint32_t r1, uint32_t atags) // prints some info demo_paging_support(); + + + // prints some info and switches to system mode + demo_mode_to_system(); // prints some info demo_current_mode(); @@ -30,13 +35,30 @@ void kernel_main(uint32_t r0, uint32_t r1, uint32_t atags) demo_setup_libkernel(); demo_setup_PL0(); + enable_timer(); + // enable interrupts demo_setup_interrupts(); - - // prints some info and sets up a section for PL0 code, loads a blob + + *(int *)(0x3000B210) = 1; + *(int *)(0x3000B204) = 1; + + + asm("LDR r0, =0x3F00B200\n\r" + "MOV r1, #2\n\r" + "STR r1, [r0, #0x00]\n\r"); + + *(int *)(0x7E00B210) = 1; + *(int *)(0x7E00B214) = 1; + *(int *)(0x7E00B218) = 1; + uart_putc(*(int*)(0x40000034) ); + *(int *)(0x40000034) = 1; + + + // prints some info and sets up a section for PL0 code, loads a blob // there and jumps to it... never, ever, ever returns demo_go_unprivileged(); - + while(1); while (1) |