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git.ipfire.org Git - people/ms/u-boot.git/blob - drivers/net/vsc7385.c
2 * Vitesse 7385 Switch Firmware Upload
4 * Author: Timur Tabi <timur@freescale.com>
6 * Copyright 2008 Freescale Semiconductor, Inc. This file is licensed
7 * under the terms of the GNU General Public License version 2. This
8 * program is licensed "as is" without any warranty of any kind, whether
11 * This module uploads proprietary firmware for the Vitesse VSC7385 5-port
19 #include <linux/errno.h>
23 * Upload a Vitesse VSC7385 firmware image to the hardware
25 * This function takes a pointer to a VSC7385 firmware image and a size, and
26 * uploads that firmware to the VSC7385.
28 * This firmware is typically located at a board-specific flash address,
29 * and the size is typically 8KB.
31 * The firmware is Vitesse proprietary.
33 * Further details on the register information can be obtained from Vitesse.
35 int vsc7385_upload_firmware(void *firmware
, unsigned int size
)
40 u32
*gloreset
= (u32
*) (CONFIG_SYS_VSC7385_BASE
+ 0x1c050);
41 u32
*icpu_ctrl
= (u32
*) (CONFIG_SYS_VSC7385_BASE
+ 0x1c040);
42 u32
*icpu_addr
= (u32
*) (CONFIG_SYS_VSC7385_BASE
+ 0x1c044);
43 u32
*icpu_data
= (u32
*) (CONFIG_SYS_VSC7385_BASE
+ 0x1c048);
44 u32
*icpu_rom_map
= (u32
*) (CONFIG_SYS_VSC7385_BASE
+ 0x1c070);
46 u32
*chipid
= (u32
*) (CONFIG_SYS_VSC7385_BASE
+ 0x1c060);
49 out_be32(gloreset
, 3);
52 out_be32(icpu_ctrl
, 0x8E);
55 out_be32(icpu_rom_map
, 1);
58 /* Write the firmware to I-RAM */
59 out_be32(icpu_addr
, 0);
62 for (i
= 0; i
< size
; i
++) {
63 out_be32(icpu_data
, fw
[i
]);
69 /* Read back and compare */
70 out_be32(icpu_addr
, 0);
73 for (i
= 0; i
< size
; i
++) {
76 value
= (u8
) in_be32(icpu_data
);
79 debug("VSC7385: Upload mismatch: address 0x%x, "
80 "read value 0x%x, image value 0x%x\n",
89 out_be32(icpu_ctrl
, 0x0B);
93 printf("VSC7385: Chip ID is %08x\n", in_be32(chipid
));