1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2010-2017 CS Systemes d'Information
4 * Florent Trinh Thai <florent.trinh-thai@c-s.fr>
5 * Christophe Leroy <christophe.leroy@c-s.fr>
7 * Board specific routines for the MCR3000 board
15 #include <fdt_support.h>
18 #include <dm/uclass.h>
20 #include <linux/delay.h>
22 DECLARE_GLOBAL_DATA_PTR;
24 #define SDRAM_MAX_SIZE (32 * 1024 * 1024)
26 static const uint cs1_dram_table_66[] = {
27 /* DRAM - single read. (offset 0 in upm RAM) */
28 0x0F3DFC04, 0x0FEFBC04, 0x00BE7804, 0x0FFDF400,
29 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
31 /* DRAM - burst read. (offset 8 in upm RAM) */
32 0x0F3DFC04, 0x0FEFBC04, 0x00BF7C04, 0x00FFFC00,
33 0x00FFFC00, 0x00FEF800, 0x0FFDF400, 0x1FFFFC05,
34 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
35 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
37 /* DRAM - single write. (offset 18 in upm RAM) */
38 0x0F3DFC04, 0x0FEFB800, 0x00BF7404, 0x0FFEF804,
39 0x0FFDF404, 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF,
41 /* DRAM - burst write. (offset 20 in upm RAM) */
42 0x0F3DFC04, 0x0FEFB800, 0x00BF7400, 0x00FFFC00,
43 0x00FFFC00, 0x00FFFC04, 0x0FFEF804, 0x0FFDF404,
44 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
45 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
47 /* refresh (offset 30 in upm RAM) */
48 0x0FFDF404, 0x0FFEBC04, 0x0FFD7C84, 0x0FFFFC04,
49 0x0FFFFC04, 0x0FFFFC04, 0x1FFFFC85, 0xFFFFFFFF,
52 0x0FEEB874, 0x0FBD7474, 0x1FFFFC45, 0xFFFFFFFF,
54 /* exception. (offset 3c in upm RAM) */
55 0xFFFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
58 int ft_board_setup(void *blob, bd_t *bd)
60 const char *sync = "receive";
62 ft_cpu_setup(blob, bd);
65 do_fixup_by_path_u32(blob, "/soc/cpm", "brg-frequency",
69 fdt_fixup_ethernet(blob);
71 /* Bus Frequency for CPM */
72 do_fixup_by_path_u32(blob, "/soc", "bus-frequency", bd->bi_busfreq, 1);
74 /* E1 interface - Set data rate */
75 do_fixup_by_path_u32(blob, "/localbus/e1-wan", "data-rate", 2, 1);
77 /* E1 interface - Set channel phase to 0 */
78 do_fixup_by_path_u32(blob, "/localbus/e1-wan", "channel-phase", 0, 1);
80 /* E1 interface - rising edge sync pulse transmit */
81 do_fixup_by_path(blob, "/localbus/e1-wan", "rising-edge-sync-pulse",
82 sync, strlen(sync), 1);
89 serial_puts("BOARD: MCR3000 CSSI\n");
96 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
97 memctl8xx_t __iomem *memctl = &immap->im_memctl;
99 printf("UPMA init for SDRAM (CAS latency 2), ");
100 printf("init address 0x%08x, size ", (int)dram_init);
101 /* Configure UPMA for cs1 */
102 upmconfig(UPMA, (uint *)cs1_dram_table_66,
103 sizeof(cs1_dram_table_66) / sizeof(uint));
105 out_be16(&memctl->memc_mptpr, 0x0200);
106 out_be32(&memctl->memc_mamr, 0x14904000);
108 out_be32(&memctl->memc_or1, CONFIG_SYS_OR1_PRELIM);
109 out_be32(&memctl->memc_br1, CONFIG_SYS_BR1_PRELIM);
111 out_be32(&memctl->memc_mcr, 0x80002830);
112 out_be32(&memctl->memc_mar, 0x00000088);
113 out_be32(&memctl->memc_mcr, 0x80002038);
116 gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
122 int misc_init_r(void)
124 immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR;
125 iop8xx_t __iomem *iop = &immr->im_ioport;
127 /* Set port C13 as GPIO (BTN_ACQ_AL) */
128 clrbits_be16(&iop->iop_pcpar, 0x4);
129 clrbits_be16(&iop->iop_pcdir, 0x4);
131 /* if BTN_ACQ_AL is pressed then bootdelay is changed to 60 second */
132 if ((in_be16(&iop->iop_pcdat) & 0x0004) == 0)
133 env_set("bootdelay", "60");
138 int board_early_init_f(void)
140 immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR;
143 * Erase FPGA(s) for reboot
145 clrbits_be32(&immr->im_cpm.cp_pbdat, 0x00020000); /* PROGFPGA down */
146 setbits_be32(&immr->im_cpm.cp_pbdir, 0x00020000); /* PROGFPGA output */
147 udelay(1); /* Wait more than 300ns */
148 setbits_be32(&immr->im_cpm.cp_pbdat, 0x00020000); /* PROGFPGA up */
153 int board_early_init_r(void)
155 struct udevice *watchdog_dev = NULL;
157 if (uclass_get_device(UCLASS_WDT, 0, &watchdog_dev)) {
158 puts("Cannot find watchdog!\n");
160 puts("Enabling watchdog.\n");
161 wdt_start(watchdog_dev, 0xffff, 0);