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/* $OpenBSD */
/*
* Copyright (c) 2013 Sylvestre Gallon <ccna.syl@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/termios.h>
#include <machine/bus.h>
#include <machine/bootconfig.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
#include <arm/cortex/smc.h>
#include <arm/armv7/armv7var.h>
#include <armv7/armv7/armv7var.h>
#include <armv7/armv7/armv7_machdep.h>
extern void omap4_smc_call(uint32_t, uint32_t);
extern void omdog_reset(void);
extern int comcnspeed;
extern int comcnmode;
const char *platform_boot_name = "OpenBSD/omap";
void
platform_smc_write(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off,
uint32_t op, uint32_t val)
{
switch (op) {
case 0x100: /* PL310 DEBUG */
case 0x102: /* PL310 CTL */
break;
default:
panic("platform_smc_write: invalid operation %d", op);
}
omap4_smc_call(op, val);
}
void
platform_init_cons(void)
{
paddr_t paddr;
switch (board_id) {
case BOARD_ID_OMAP3_BEAGLE:
case BOARD_ID_OMAP3_OVERO:
paddr = 0x49020000;
break;
case BOARD_ID_AM335X_BEAGLEBONE:
paddr = 0x44e09000;
break;
case BOARD_ID_OMAP4_PANDA:
paddr = 0x48020000;
break;
}
comcnattach(&armv7_a4x_bs_tag, paddr, comcnspeed, 48000000, comcnmode);
comdefaultrate = comcnspeed;
}
void
platform_watchdog_reset(void)
{
omdog_reset();
}
void
platform_powerdown(void)
{
}
void
platform_print_board_type(void)
{
switch (board_id) {
case BOARD_ID_OMAP3_BEAGLE:
printf("board type: beagle\n");
break;
case BOARD_ID_AM335X_BEAGLEBONE:
printf("board type: beaglebone\n");
break;
case BOARD_ID_OMAP3_OVERO:
printf("board type: overo\n");
break;
case BOARD_ID_OMAP4_PANDA:
printf("board type: panda\n");
break;
default:
printf("board type %x unknown", board_id);
}
}
void
platform_bootconfig_dram(BootConfig *bootconfig, psize_t *memstart, psize_t *memsize)
{
uint32_t sdrc_mcfg_0, sdrc_mcfg_1, memsize0, memsize1;
int loop;
if (bootconfig->dramblocks == 0) {
sdrc_mcfg_0 = *(uint32_t *)0x6d000080;
sdrc_mcfg_1 = *(uint32_t *)0x6d0000b0;
memsize0 = (((sdrc_mcfg_0 >> 8))&0x3ff) * (2 * 1024 * 1024);
memsize1 = (((sdrc_mcfg_1 >> 8))&0x3ff) * (2 * 1024 * 1024);
*memsize = memsize0 + memsize1;
*memstart = SDRAM_START;
*memsize = 0x02000000; /* 32MB */
/* Fake bootconfig structure for the benefit of pmap.c */
/* XXX must make the memory description h/w independant */
bootconfig->dram[0].address = *memstart;
bootconfig->dram[0].pages = memsize0 / PAGE_SIZE;
bootconfig->dramblocks = 1;
if (memsize1 != 0) {
bootconfig->dram[1].address = bootconfig->dram[0].address
+ memsize0; /* XXX */
bootconfig->dram[1].pages = memsize1 / PAGE_SIZE;
bootconfig->dramblocks++; /* both banks populated */
}
} else {
/* doesn't deal with multiple segments, hopefully u-boot collaped them into one */
*memstart = bootconfig->dram[0].address;
*memsize = bootconfig->dram[0].pages * PAGE_SIZE;
printf("memory size derived from u-boot\n");
for (loop = 0; loop < bootconfig->dramblocks; loop++) {
printf("bootconf.mem[%d].address = %08x pages %d/0x%08x\n",
loop, bootconfig->dram[0].address, bootconfig->dram[0].pages,
bootconfig->dram[0].pages * PAGE_SIZE);
}
}
}
void
platform_disable_l2_if_needed(void)
{
switch (board_id) {
case BOARD_ID_OMAP4_PANDA:
/* disable external L2 cache */
omap4_smc_call(0x102, 0);
break;
}
}
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