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git.ipfire.org Git - thirdparty/u-boot.git/blob - board/mpl/vcma9/cmd_vcma9.c
3 * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
6 * David Mueller, ELSOFT AG, d.mueller@elsoft.ch
8 * SPDX-License-Identifier: GPL-2.0+
15 #include "../common/common_util.h"
17 #if defined(CONFIG_CS8900)
18 #include <../drivers/net/cs8900.h>
20 static uchar
cs8900_chksum(ushort data
)
22 return((data
>> 8) & 0x00FF) + (data
& 0x00FF);
27 DECLARE_GLOBAL_DATA_PTR
;
29 /* ------------------------------------------------------------------------- */
31 int do_vcma9(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
33 struct eth_device
*dev
;
35 if (strcmp(argv
[1], "info") == 0)
40 #if defined(CONFIG_CS8900)
41 if (strcmp(argv
[1], "cs8900") == 0) {
42 sprintf(cs8900_name
, "%s-0", CS8900_DRIVERNAME
);
43 dev
= eth_get_dev_by_name(cs8900_name
);
45 printf("Couldn't find CS8900 driver");
48 if (strcmp(argv
[2], "read") == 0) {
49 uchar addr
; ushort data
;
51 addr
= simple_strtoul(argv
[3], NULL
, 16);
52 cs8900_e2prom_read(dev
, addr
, &data
);
53 printf("0x%2.2X: 0x%4.4X\n", addr
, data
);
54 } else if (strcmp(argv
[2], "write") == 0) {
55 uchar addr
; ushort data
;
57 addr
= simple_strtoul(argv
[3], NULL
, 16);
58 data
= simple_strtoul(argv
[4], NULL
, 16);
59 cs8900_e2prom_write(dev
, addr
, data
);
60 } else if (strcmp(argv
[2], "setaddr") == 0) {
61 uchar addr
, i
, csum
; ushort data
;
64 /* check for valid ethaddr */
65 if (eth_getenv_enetaddr("ethaddr", ethaddr
)) {
68 cs8900_e2prom_write(dev
, addr
, data
);
69 csum
= cs8900_chksum(data
);
71 for (i
= 0; i
< 6; i
+=2) {
72 data
= ethaddr
[i
+1] << 8 |
74 cs8900_e2prom_write(dev
, addr
, data
);
75 csum
+= cs8900_chksum(data
);
78 /* calculate header link byte */
79 data
= 0xA100 | (addr
* 2);
80 cs8900_e2prom_write(dev
, 0, data
);
81 csum
+= cs8900_chksum(data
);
82 /* write checksum word */
83 cs8900_e2prom_write(dev
, addr
, (0 - csum
) << 8);
85 puts("\nplease defined 'ethaddr'\n");
87 } else if (strcmp(argv
[2], "dump") == 0) {
88 uchar addr
= 0, endaddr
, csum
; ushort data
;
90 puts("Dump of CS8900 config device: ");
91 cs8900_e2prom_read(dev
, addr
, &data
);
92 if ((data
& 0xE000) == 0xA000) {
93 endaddr
= (data
& 0x00FF) / 2;
94 csum
= cs8900_chksum(data
);
95 for (addr
= 1; addr
<= endaddr
; addr
++) {
96 cs8900_e2prom_read(dev
, addr
, &data
);
97 printf("\n0x%2.2X: 0x%4.4X", addr
, data
);
98 csum
+= cs8900_chksum(data
);
100 printf("\nChecksum: %s", (csum
== 0) ? "ok" : "wrong");
102 puts("no valid config found");
111 return (do_mplcommon(cmdtp
, flag
, argc
, argv
));
115 vcma9
, 6, 1, do_vcma9
,
116 "VCMA9 specific commands",
117 "flash mem [SrcAddr] - updates U-Boot with image in memory\n"
118 "vcma9 info - displays board information"