diff options
Diffstat (limited to 'arch/sparc/cpu/leon2/cpu_init.c')
-rw-r--r-- | arch/sparc/cpu/leon2/cpu_init.c | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/arch/sparc/cpu/leon2/cpu_init.c b/arch/sparc/cpu/leon2/cpu_init.c deleted file mode 100644 index 9dfb99cb0f..0000000000 --- a/arch/sparc/cpu/leon2/cpu_init.c +++ /dev/null @@ -1,95 +0,0 @@ -/* Initializes CPU and basic hardware such as memory - * controllers, IRQ controller and system timer 0. - * - * (C) Copyright 2007, 2015 - * Daniel Hellstrom, Cobham Gaisler, daniel@gaisler.com - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/asi.h> -#include <asm/leon.h> -#include <asm/io.h> - -#include <config.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* - * Breath some life into the CPU... - * - * Set up the memory map, - * initialize a bunch of registers. - * - * Run from FLASH/PROM: - * - until memory controller is set up, only registers available - * - no global variables available for writing - * - constants available - */ - -void cpu_init_f(void) -{ - LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS; - - /* initialize the IRQMP */ - leon2->Interrupt_Force = 0; - leon2->Interrupt_Pending = 0; - leon2->Interrupt_Clear = 0xfffe; /* clear all old pending interrupts */ - leon2->Interrupt_Mask = 0xfffe0000; /* mask all IRQs */ - - /* cache */ - - /* I/O port setup */ -#ifdef LEON2_IO_PORT_DIR - leon2->PIO_Direction = LEON2_IO_PORT_DIR; -#endif -#ifdef LEON2_IO_PORT_DATA - leon2->PIO_Data = LEON2_IO_PORT_DATA; -#endif -#ifdef LEON2_IO_PORT_INT - leon2->PIO_Interrupt = LEON2_IO_PORT_INT; -#else - leon2->PIO_Interrupt = 0; -#endif - - /* disable timers */ - leon2->Timer_Control_1 = leon2->Timer_Control_2 = 0; -} - -int arch_cpu_init(void) -{ - gd->cpu_clk = CONFIG_SYS_CLK_FREQ; - gd->bus_clk = CONFIG_SYS_CLK_FREQ; - gd->ram_size = CONFIG_SYS_SDRAM_SIZE; - - return 0; -} - -/* - * initialize higher level parts of CPU - */ -int cpu_init_r(void) -{ - return 0; -} - -/* initiate and setup timer0 to configured HZ. Base clock is 1MHz. - */ -int timer_init(void) -{ - LEON2_regs *leon2 = (LEON2_regs *)LEON2_PREGS; - - /* initialize prescaler common to all timers to 1MHz */ - leon2->Scaler_Counter = leon2->Scaler_Reload = - (((CONFIG_SYS_CLK_FREQ / 1000) + 500) / 1000) - 1; - - /* SYS_HZ ticks per second */ - leon2->Timer_Counter_1 = 0; - leon2->Timer_Reload_1 = (CONFIG_SYS_TIMER_RATE / CONFIG_SYS_HZ) - 1; - leon2->Timer_Control_1 = LEON2_TIMER_CTRL_EN | LEON2_TIMER_CTRL_RS | - LEON2_TIMER_CTRL_LD; - - CONFIG_SYS_TIMER_COUNTER = (void *)&leon2->Timer_Counter_1; - return 0; -} |