Merge tag 'u-boot-atmel-fixes-2020.07-a' of https://gitlab.denx.de/u-boot/custodians...
[oweals/u-boot.git] / board / cssi / MCR3000 / MCR3000.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
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>
6  *
7  * Board specific routines for the MCR3000 board
8  */
9
10 #include <common.h>
11 #include <env.h>
12 #include <hwconfig.h>
13 #include <init.h>
14 #include <mpc8xx.h>
15 #include <fdt_support.h>
16 #include <serial.h>
17 #include <asm/io.h>
18 #include <dm/uclass.h>
19 #include <wdt.h>
20 #include <linux/delay.h>
21
22 DECLARE_GLOBAL_DATA_PTR;
23
24 #define SDRAM_MAX_SIZE                  (32 * 1024 * 1024)
25
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,
30
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,
36
37         /* DRAM - single write. (offset 18 in upm RAM) */
38         0x0F3DFC04, 0x0FEFB800, 0x00BF7404, 0x0FFEF804,
39         0x0FFDF404, 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF,
40
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,
46
47         /* refresh  (offset 30 in upm RAM) */
48         0x0FFDF404, 0x0FFEBC04, 0x0FFD7C84, 0x0FFFFC04,
49         0x0FFFFC04, 0x0FFFFC04, 0x1FFFFC85, 0xFFFFFFFF,
50
51         /* init */
52         0x0FEEB874, 0x0FBD7474, 0x1FFFFC45, 0xFFFFFFFF,
53
54         /* exception. (offset 3c in upm RAM) */
55         0xFFFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
56 };
57
58 int ft_board_setup(void *blob, bd_t *bd)
59 {
60         const char *sync = "receive";
61
62         ft_cpu_setup(blob, bd);
63
64         /* BRG */
65         do_fixup_by_path_u32(blob, "/soc/cpm", "brg-frequency",
66                              bd->bi_busfreq, 1);
67
68         /* MAC addr */
69         fdt_fixup_ethernet(blob);
70
71         /* Bus Frequency for CPM */
72         do_fixup_by_path_u32(blob, "/soc", "bus-frequency", bd->bi_busfreq, 1);
73
74         /* E1 interface - Set data rate */
75         do_fixup_by_path_u32(blob, "/localbus/e1-wan", "data-rate", 2, 1);
76
77         /* E1 interface - Set channel phase to 0 */
78         do_fixup_by_path_u32(blob, "/localbus/e1-wan", "channel-phase", 0, 1);
79
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);
83
84         return 0;
85 }
86
87 int checkboard(void)
88 {
89         serial_puts("BOARD: MCR3000 CSSI\n");
90
91         return 0;
92 }
93
94 int dram_init(void)
95 {
96         immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
97         memctl8xx_t __iomem *memctl = &immap->im_memctl;
98
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));
104         udelay(10);
105         out_be16(&memctl->memc_mptpr, 0x0200);
106         out_be32(&memctl->memc_mamr, 0x14904000);
107         udelay(10);
108         out_be32(&memctl->memc_or1, CONFIG_SYS_OR1_PRELIM);
109         out_be32(&memctl->memc_br1, CONFIG_SYS_BR1_PRELIM);
110         udelay(10);
111         out_be32(&memctl->memc_mcr, 0x80002830);
112         out_be32(&memctl->memc_mar, 0x00000088);
113         out_be32(&memctl->memc_mcr, 0x80002038);
114         udelay(200);
115
116         gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
117                                     SDRAM_MAX_SIZE);
118
119         return 0;
120 }
121
122 int misc_init_r(void)
123 {
124         immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR;
125         iop8xx_t __iomem *iop = &immr->im_ioport;
126
127         /* Set port C13 as GPIO (BTN_ACQ_AL) */
128         clrbits_be16(&iop->iop_pcpar, 0x4);
129         clrbits_be16(&iop->iop_pcdir, 0x4);
130
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");
134
135         return 0;
136 }
137
138 int board_early_init_f(void)
139 {
140         immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR;
141
142         /*
143          * Erase FPGA(s) for reboot
144          */
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 */
149
150         return 0;
151 }
152
153 int board_early_init_r(void)
154 {
155         struct udevice *watchdog_dev = NULL;
156
157         if (uclass_get_device(UCLASS_WDT, 0, &watchdog_dev)) {
158                 puts("Cannot find watchdog!\n");
159         } else {
160                 puts("Enabling watchdog.\n");
161                 wdt_start(watchdog_dev, 0xffff, 0);
162         }
163
164         return 0;
165 }