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-rw-r--r--cpu/leon3/cpu_init.c254
1 files changed, 0 insertions, 254 deletions
diff --git a/cpu/leon3/cpu_init.c b/cpu/leon3/cpu_init.c
deleted file mode 100644
index be22ec2..0000000
--- a/cpu/leon3/cpu_init.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/* Initializes CPU and basic hardware such as memory
- * controllers, IRQ controller and system timer 0.
- *
- * (C) Copyright 2007
- * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
- */
-
-#include <common.h>
-#include <asm/asi.h>
-#include <asm/leon.h>
-#include <ambapp.h>
-
-#include <config.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* reset CPU (jump to 0, without reset) */
-void start(void);
-
-/* find & initialize the memory controller */
-int init_memory_ctrl(void);
-
-ambapp_dev_irqmp *irqmp = NULL;
-ambapp_dev_mctrl memctrl;
-ambapp_dev_gptimer *gptimer = NULL;
-unsigned int gptimer_irq = 0;
-int leon3_snooping_avail = 0;
-
-struct {
- gd_t gd_area;
- bd_t bd;
-} global_data;
-
-/*
- * 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 avaiable
- * - no global variables available for writing
- * - constants avaiable
- */
-
-void cpu_init_f(void)
-{
- /* these varaiable must not be initialized */
- ambapp_dev_irqmp *irqmp;
- ambapp_apbdev apbdev;
- register unsigned int apbmst;
-
- /* find AMBA APB Master */
- apbmst = (unsigned int)
- ambapp_ahb_next_nomem(VENDOR_GAISLER, GAISLER_APBMST, 1, 0);
- if (!apbmst) {
- /*
- * no AHB/APB bridge, something is wrong
- * ==> jump to start (or hang)
- */
- while (1) ;
- }
- /* Init memory controller */
- if (init_memory_ctrl()) {
- while (1) ;
- }
-
- /****************************************************
- * From here we can use the main memory and the stack.
- */
-
- /* Find AMBA APB IRQMP Controller */
- if (ambapp_apb_first(VENDOR_GAISLER, GAISLER_IRQMP, &apbdev) != 1) {
- /* no IRQ controller, something is wrong
- * ==> jump to start (or hang)
- */
- while (1) ;
- }
- irqmp = (ambapp_dev_irqmp *) apbdev.address;
-
- /* initialize the IRQMP */
- irqmp->ilevel = 0xf; /* all IRQ off */
- irqmp->iforce = 0;
- irqmp->ipend = 0;
- irqmp->iclear = 0xfffe; /* clear all old pending interrupts */
- irqmp->cpu_mask[0] = 0; /* mask all IRQs on CPU 0 */
- irqmp->cpu_force[0] = 0; /* no force IRQ on CPU 0 */
-
- /* cache */
-}
-
-void cpu_init_f2(void)
-{
-
-}
-
-/*
- * initialize higher level parts of CPU like time base and timers
- */
-int cpu_init_r(void)
-{
- ambapp_apbdev apbdev;
-
- /*
- * Find AMBA APB IRQMP Controller,
- * When we come so far we know there is a IRQMP available
- */
- ambapp_apb_first(VENDOR_GAISLER, GAISLER_IRQMP, &apbdev);
- irqmp = (ambapp_dev_irqmp *) apbdev.address;
-
- /* timer */
- if (ambapp_apb_first(VENDOR_GAISLER, GAISLER_GPTIMER, &apbdev) != 1) {
- printf("cpu_init_r: gptimer not found!\n");
- return 1;
- }
- gptimer = (ambapp_dev_gptimer *) apbdev.address;
- gptimer_irq = apbdev.irq;
-
- /* initialize prescaler common to all timers to 1MHz */
- gptimer->scalar = gptimer->scalar_reload =
- (((CONFIG_SYS_CLK_FREQ / 1000) + 500) / 1000) - 1;
-
- return (0);
-}
-
-/* find & setup memory controller */
-int init_memory_ctrl()
-{
- register ambapp_dev_mctrl *mctrl;
- register ambapp_dev_sdctrl *sdctrl;
- register ambapp_dev_ddrspa *ddrspa;
- register ambapp_dev_ddr2spa *ddr2spa;
- register ahbctrl_pp_dev *ahb;
- register unsigned int base;
- register int not_found_mctrl = -1;
-
- /* find ESA Memory controller */
- base = ambapp_apb_next_nomem(VENDOR_ESA, ESA_MCTRL, 0);
- if (base) {
- mctrl = (ambapp_dev_mctrl *) base;
-
- /* config MCTRL memory controller */
- mctrl->mcfg1 = CONFIG_SYS_GRLIB_MEMCFG1 | (mctrl->mcfg1 & 0x300);
- mctrl->mcfg2 = CONFIG_SYS_GRLIB_MEMCFG2;
- mctrl->mcfg3 = CONFIG_SYS_GRLIB_MEMCFG3;
- not_found_mctrl = 0;
- }
-
- /* find Gaisler Fault Tolerant Memory controller */
- base = ambapp_apb_next_nomem(VENDOR_GAISLER, GAISLER_FTMCTRL, 0);
- if (base) {
- mctrl = (ambapp_dev_mctrl *) base;
-
- /* config MCTRL memory controller */
- mctrl->mcfg1 = CONFIG_SYS_GRLIB_FT_MEMCFG1 | (mctrl->mcfg1 & 0x300);
- mctrl->mcfg2 = CONFIG_SYS_GRLIB_FT_MEMCFG2;
- mctrl->mcfg3 = CONFIG_SYS_GRLIB_FT_MEMCFG3;
- not_found_mctrl = 0;
- }
-
- /* find SDRAM controller */
- base = ambapp_apb_next_nomem(VENDOR_GAISLER, GAISLER_SDCTRL, 0);
- if (base) {
- sdctrl = (ambapp_dev_sdctrl *) base;
-
- /* config memory controller */
- sdctrl->sdcfg = CONFIG_SYS_GRLIB_SDRAM;
- not_found_mctrl = 0;
- }
-
- ahb = ambapp_ahb_next_nomem(VENDOR_GAISLER, GAISLER_DDR2SPA, 1, 0);
- if (ahb) {
- ddr2spa = (ambapp_dev_ddr2spa *) ambapp_ahb_get_info(ahb, 1);
-
- /* Config DDR2 memory controller */
- ddr2spa->cfg1 = CONFIG_SYS_GRLIB_DDR2_CFG1;
- ddr2spa->cfg3 = CONFIG_SYS_GRLIB_DDR2_CFG3;
- not_found_mctrl = 0;
- }
-
- ahb = ambapp_ahb_next_nomem(VENDOR_GAISLER, GAISLER_DDRSPA, 1, 0);
- if (ahb) {
- ddrspa = (ambapp_dev_ddrspa *) ambapp_ahb_get_info(ahb, 1);
-
- /* Config DDR memory controller */
- ddrspa->ctrl = CONFIG_SYS_GRLIB_DDR_CFG;
- not_found_mctrl = 0;
- }
-
- /* failed to find any memory controller */
- return not_found_mctrl;
-}
-
-/* Uses Timer 0 to get accurate
- * pauses. Max 2 raised to 32 ticks
- *
- */
-void cpu_wait_ticks(unsigned long ticks)
-{
- unsigned long start = get_timer(0);
- while (get_timer(start) < ticks) ;
-}
-
-/* initiate and setup timer0 interrupt to 1MHz
- * Return irq number for timer int or a negative number for
- * dealing with self
- */
-int timer_interrupt_init_cpu(void)
-{
- /* 1ms ticks */
- gptimer->e[0].val = 0;
- gptimer->e[0].rld = 999; /* (((1000000 / 100) - 1)) */
- gptimer->e[0].ctrl =
- (LEON3_GPTIMER_EN |
- LEON3_GPTIMER_RL | LEON3_GPTIMER_LD | LEON3_GPTIMER_IRQEN);
-
- return gptimer_irq;
-}
-
-/*
- * This function is intended for SHORT delays only.
- */
-unsigned long cpu_usec2ticks(unsigned long usec)
-{
- /* timer set to 1kHz ==> 1 clk tick = 1 msec */
- if (usec < 1000)
- return 1;
- return (usec / 1000);
-}
-
-unsigned long cpu_ticks2usec(unsigned long ticks)
-{
- /* 1tick = 1usec */
- return ticks * 1000;
-}
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