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/* tag: openbios forth environment, executable code
*
* Copyright (C) 2003 Patrick Mauritz, Stefan Reinauer
*
* See the file "COPYING" for further information about
* the copyright and warranty status of this work.
*/
#include "config.h"
#include "libopenbios/bindings.h"
#include "drivers/drivers.h"
#include "asm/types.h"
#include "dict.h"
#include "kernel/kernel.h"
#include "kernel/stack.h"
#include "arch/common/nvram.h"
#include "packages/nvram.h"
#include "../../drivers/timer.h" // XXX
#include "libopenbios/sys_info.h"
#include "openbios.h"
#include "boot.h"
#include "packages/video.h"
#define MEMORY_SIZE (128*1024) /* 16K ram for hosted system */
#define DICTIONARY_SIZE (256*1024) /* 256K for the dictionary */
static ucell *memory;
int qemu_machine_type;
struct hwdef {
uint64_t iommu_base, slavio_base;
uint64_t intctl_base, counter_base, nvram_base, ms_kb_base, serial_base;
unsigned long fd_offset, counter_offset, intr_offset;
unsigned long aux1_offset, aux2_offset;
uint64_t dma_base, esp_base, le_base;
uint64_t tcx_base;
int machine_id_low, machine_id_high;
};
static const struct hwdef hwdefs[] = {
/* SS-5 */
{
.iommu_base = 0x10000000,
.tcx_base = 0x50000000,
.slavio_base = 0x71000000,
.ms_kb_base = 0x71000000,
.serial_base = 0x71100000,
.nvram_base = 0x71200000,
.fd_offset = 0x00400000,
.counter_offset = 0x00d00000,
.intr_offset = 0x00e00000,
.aux1_offset = 0x00900000,
.aux2_offset = 0x00910000,
.dma_base = 0x78400000,
.esp_base = 0x78800000,
.le_base = 0x78c00000,
.machine_id_low = 32,
.machine_id_high = 63,
},
/* SS-10 */
{
.iommu_base = 0xfe0000000ULL,
.tcx_base = 0xe20000000ULL,
.slavio_base = 0xff1000000ULL,
.ms_kb_base = 0xff1000000ULL,
.serial_base = 0xff1100000ULL,
.nvram_base = 0xff1200000ULL,
.fd_offset = 0x00700000, // 0xff1700000ULL,
.counter_offset = 0x00300000, // 0xff1300000ULL,
.intr_offset = 0x00400000, // 0xff1400000ULL,
.aux1_offset = 0x00800000, // 0xff1800000ULL,
.aux2_offset = 0x00a01000, // 0xff1a01000ULL,
.dma_base = 0xef0400000ULL,
.esp_base = 0xef0800000ULL,
.le_base = 0xef0c00000ULL,
.machine_id_low = 64,
.machine_id_high = 65,
},
/* SS-600MP */
{
.iommu_base = 0xfe0000000ULL,
.tcx_base = 0xe20000000ULL,
.slavio_base = 0xff1000000ULL,
.ms_kb_base = 0xff1000000ULL,
.serial_base = 0xff1100000ULL,
.nvram_base = 0xff1200000ULL,
.fd_offset = -1,
.counter_offset = 0x00300000, // 0xff1300000ULL,
.intr_offset = 0x00400000, // 0xff1400000ULL,
.aux1_offset = 0x00800000, // 0xff1800000ULL,
.aux2_offset = 0x00a01000, // 0xff1a01000ULL, XXX should not exist
.dma_base = 0xef0081000ULL,
.esp_base = 0xef0080000ULL,
.le_base = 0xef0060000ULL,
.machine_id_low = 66,
.machine_id_high = 66,
},
};
static const struct hwdef *hwdef;
void setup_timers(void)
{
}
void udelay(unsigned int usecs)
{
}
void mdelay(unsigned int msecs)
{
}
static void init_memory(void)
{
memory = malloc(MEMORY_SIZE);
if (!memory)
printk("panic: not enough memory on host system.\n");
/* we push start and end of memory to the stack
* so that it can be used by the forth word QUIT
* to initialize the memory allocator
*/
PUSH((ucell)memory);
PUSH((ucell)memory + MEMORY_SIZE);
}
static void
arch_init( void )
{
modules_init();
ob_init_mmu();
ob_init_iommu(hwdef->iommu_base);
#ifdef CONFIG_DRIVER_OBIO
ob_obio_init(hwdef->slavio_base, hwdef->fd_offset,
hwdef->counter_offset, hwdef->intr_offset,
hwdef->aux1_offset, hwdef->aux2_offset);
nvconf_init();
#endif
#ifdef CONFIG_DRIVER_SBUS
#ifdef CONFIG_DEBUG_CONSOLE_VIDEO
init_video((unsigned long)vmem, 1024, 768, 8, 1024);
#endif
ob_sbus_init(hwdef->iommu_base + 0x1000ULL, qemu_machine_type);
#endif
device_end();
bind_func("platform-boot", boot );
}
int openbios(void)
{
unsigned int i;
for (i = 0; i < sizeof(hwdefs) / sizeof(struct hwdef); i++) {
if (hwdefs[i].machine_id_low <= qemu_machine_type &&
hwdefs[i].machine_id_high >= qemu_machine_type) {
hwdef = &hwdefs[i];
break;
}
}
if (!hwdef)
for(;;); // Internal inconsistency, hang
#ifdef CONFIG_DRIVER_SBUS
init_mmu_swift();
#endif
#ifdef CONFIG_DEBUG_CONSOLE
#ifdef CONFIG_DEBUG_CONSOLE_SERIAL
uart_init(hwdef->serial_base | (CONFIG_SERIAL_PORT? 0ULL: 4ULL),
CONFIG_SERIAL_SPEED);
#endif
#ifdef CONFIG_DEBUG_CONSOLE_VIDEO
tcx_init(hwdef->tcx_base);
kbd_init(hwdef->ms_kb_base);
#endif
/* Clear the screen. */
cls();
#endif
collect_sys_info(&sys_info);
dict = malloc(DICTIONARY_SIZE);
load_dictionary((char *)sys_info.dict_start,
(unsigned long)sys_info.dict_end
- (unsigned long)sys_info.dict_start);
#ifdef CONFIG_DEBUG_BOOT
printk("forth started.\n");
printk("initializing memory...");
#endif
init_memory();
#ifdef CONFIG_DEBUG_BOOT
printk("done\n");
#endif
PUSH_xt( bind_noname_func(arch_init) );
fword("PREPOST-initializer");
PC = (ucell)findword("initialize-of");
if (!PC) {
printk("panic: no dictionary entry point.\n");
return -1;
}
#ifdef CONFIG_DEBUG_DICTIONARY
printk("done (%d bytes).\n", dicthead);
printk("Jumping to dictionary...\n");
#endif
enterforth((xt_t)PC);
free(dict);
return 0;
}
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