97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
/*
|
|
* Vitesse 7385 Switch Firmware Upload
|
|
*
|
|
* Author: Timur Tabi <timur@freescale.com>
|
|
*
|
|
* Copyright 2008 Freescale Semiconductor, Inc. This file is licensed
|
|
* under the terms of the GNU General Public License version 2. This
|
|
* program is licensed "as is" without any warranty of any kind, whether
|
|
* express or implied.
|
|
*
|
|
* This module uploads proprietary firmware for the Vitesse VSC7385 5-port
|
|
* switch.
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <asm/errno.h>
|
|
|
|
/*
|
|
* Upload a Vitesse VSC7385 firmware image to the hardware
|
|
*
|
|
* This function takes a pointer to a VSC7385 firmware image and a size, and
|
|
* uploads that firmware to the VSC7385.
|
|
*
|
|
* This firmware is typically located at a board-specific flash address,
|
|
* and the size is typically 8KB.
|
|
*
|
|
* The firmware is Vitesse proprietary.
|
|
*
|
|
* Further details on the register information can be obtained from Vitesse.
|
|
*/
|
|
int vsc7385_upload_firmware(void *firmware, unsigned int size)
|
|
{
|
|
u8 *fw = firmware;
|
|
unsigned int i;
|
|
|
|
u32 *gloreset = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c050);
|
|
u32 *icpu_ctrl = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c040);
|
|
u32 *icpu_addr = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c044);
|
|
u32 *icpu_data = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c048);
|
|
u32 *icpu_rom_map = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c070);
|
|
#ifdef DEBUG
|
|
u32 *chipid = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c060);
|
|
#endif
|
|
|
|
out_be32(gloreset, 3);
|
|
udelay(200);
|
|
|
|
out_be32(icpu_ctrl, 0x8E);
|
|
udelay(20);
|
|
|
|
out_be32(icpu_rom_map, 1);
|
|
udelay(20);
|
|
|
|
/* Write the firmware to I-RAM */
|
|
out_be32(icpu_addr, 0);
|
|
udelay(20);
|
|
|
|
for (i = 0; i < size; i++) {
|
|
out_be32(icpu_data, fw[i]);
|
|
udelay(20);
|
|
if (ctrlc())
|
|
return -EINTR;
|
|
}
|
|
|
|
/* Read back and compare */
|
|
out_be32(icpu_addr, 0);
|
|
udelay(20);
|
|
|
|
for (i = 0; i < size; i++) {
|
|
u8 value;
|
|
|
|
value = (u8) in_be32(icpu_data);
|
|
udelay(20);
|
|
if (value != fw[i]) {
|
|
debug("VSC7385: Upload mismatch: address 0x%x, "
|
|
"read value 0x%x, image value 0x%x\n",
|
|
i, value, fw[i]);
|
|
|
|
return -EIO;
|
|
}
|
|
if (ctrlc())
|
|
break;
|
|
}
|
|
|
|
out_be32(icpu_ctrl, 0x0B);
|
|
udelay(20);
|
|
|
|
#ifdef DEBUG
|
|
printf("VSC7385: Chip ID is %08x\n", in_be32(chipid));
|
|
udelay(20);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|