MCR3000.c
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/*
* Copyright (C) 2010-2017 CS Systemes d'Information
* Florent Trinh Thai <florent.trinh-thai@c-s.fr>
* Christophe Leroy <christophe.leroy@c-s.fr>
*
* Board specific routines for the MCR3000 board
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <hwconfig.h>
#include <mpc8xx.h>
#include <fdt_support.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
static const uint cs1_dram_table_66[] = {
/* DRAM - single read. (offset 0 in upm RAM) */
0x0F3DFC04, 0x0FEFBC04, 0x00BE7804, 0x0FFDF400,
0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
/* DRAM - burst read. (offset 8 in upm RAM) */
0x0F3DFC04, 0x0FEFBC04, 0x00BF7C04, 0x00FFFC00,
0x00FFFC00, 0x00FEF800, 0x0FFDF400, 0x1FFFFC05,
0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
/* DRAM - single write. (offset 18 in upm RAM) */
0x0F3DFC04, 0x0FEFB800, 0x00BF7404, 0x0FFEF804,
0x0FFDF404, 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF,
/* DRAM - burst write. (offset 20 in upm RAM) */
0x0F3DFC04, 0x0FEFB800, 0x00BF7400, 0x00FFFC00,
0x00FFFC00, 0x00FFFC04, 0x0FFEF804, 0x0FFDF404,
0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
/* refresh (offset 30 in upm RAM) */
0x0FFDF404, 0x0FFEBC04, 0x0FFD7C84, 0x0FFFFC04,
0x0FFFFC04, 0x0FFFFC04, 0x1FFFFC85, 0xFFFFFFFF,
/* init */
0x0FEEB874, 0x0FBD7474, 0x1FFFFC45, 0xFFFFFFFF,
/* exception. (offset 3c in upm RAM) */
0xFFFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
};
int ft_board_setup(void *blob, bd_t *bd)
{
const char *sync = "receive";
ft_cpu_setup(blob, bd);
/* BRG */
do_fixup_by_path_u32(blob, "/soc/cpm", "brg-frequency",
bd->bi_busfreq, 1);
/* MAC addr */
fdt_fixup_ethernet(blob);
/* Bus Frequency for CPM */
do_fixup_by_path_u32(blob, "/soc", "bus-frequency", bd->bi_busfreq, 1);
/* E1 interface - Set data rate */
do_fixup_by_path_u32(blob, "/localbus/e1-wan", "data-rate", 2, 1);
/* E1 interface - Set channel phase to 0 */
do_fixup_by_path_u32(blob, "/localbus/e1-wan", "channel-phase", 0, 1);
/* E1 interface - rising edge sync pulse transmit */
do_fixup_by_path(blob, "/localbus/e1-wan", "rising-edge-sync-pulse",
sync, strlen(sync), 1);
return 0;
}
int checkboard(void)
{
serial_puts("BOARD: MCR3000 CSSI\n");
return 0;
}
int dram_init(void)
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
memctl8xx_t __iomem *memctl = &immap->im_memctl;
printf("UPMA init for SDRAM (CAS latency 2), ");
printf("init address 0x%08x, size ", (int)dram_init);
/* Configure UPMA for cs1 */
upmconfig(UPMA, (uint *)cs1_dram_table_66,
sizeof(cs1_dram_table_66) / sizeof(uint));
udelay(10);
out_be16(&memctl->memc_mptpr, 0x0200);
out_be32(&memctl->memc_mamr, 0x14904000);
udelay(10);
out_be32(&memctl->memc_or1, CONFIG_SYS_OR1_PRELIM);
out_be32(&memctl->memc_br1, CONFIG_SYS_BR1_PRELIM);
udelay(10);
out_be32(&memctl->memc_mcr, 0x80002830);
out_be32(&memctl->memc_mar, 0x00000088);
out_be32(&memctl->memc_mcr, 0x80002038);
udelay(200);
gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
SDRAM_MAX_SIZE);
return 0;
}
int misc_init_r(void)
{
immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR;
iop8xx_t __iomem *iop = &immr->im_ioport;
/* Set port C13 as GPIO (BTN_ACQ_AL) */
clrbits_be16(&iop->iop_pcpar, 0x4);
clrbits_be16(&iop->iop_pcdir, 0x4);
/* if BTN_ACQ_AL is pressed then bootdelay is changed to 60 second */
if ((in_be16(&iop->iop_pcdat) & 0x0004) == 0)
env_set("bootdelay", "60");
return 0;
}
int board_early_init_f(void)
{
immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR;
/*
* Erase FPGA(s) for reboot
*/
clrbits_be32(&immr->im_cpm.cp_pbdat, 0x00020000); /* PROGFPGA down */
setbits_be32(&immr->im_cpm.cp_pbdir, 0x00020000); /* PROGFPGA output */
udelay(1); /* Wait more than 300ns */
setbits_be32(&immr->im_cpm.cp_pbdat, 0x00020000); /* PROGFPGA up */
return 0;
}