1b55d98c6STimur Tabi /* 2b55d98c6STimur Tabi * Vitesse 7385 Switch Firmware Upload 3b55d98c6STimur Tabi * 4b55d98c6STimur Tabi * Author: Timur Tabi <timur@freescale.com> 5b55d98c6STimur Tabi * 6b55d98c6STimur Tabi * Copyright 2008 Freescale Semiconductor, Inc. This file is licensed 7b55d98c6STimur Tabi * under the terms of the GNU General Public License version 2. This 8b55d98c6STimur Tabi * program is licensed "as is" without any warranty of any kind, whether 9b55d98c6STimur Tabi * express or implied. 10b55d98c6STimur Tabi * 11b55d98c6STimur Tabi * This module uploads proprietary firmware for the Vitesse VSC7385 5-port 12b55d98c6STimur Tabi * switch. 13b55d98c6STimur Tabi */ 14b55d98c6STimur Tabi 15b55d98c6STimur Tabi #include <config.h> 16b55d98c6STimur Tabi #include <common.h> 17b55d98c6STimur Tabi #include <asm/io.h> 18b55d98c6STimur Tabi #include <asm/errno.h> 19*960d70c6SKim Phillips #include "vsc7385.h" 20b55d98c6STimur Tabi 21b55d98c6STimur Tabi /* 22b55d98c6STimur Tabi * Upload a Vitesse VSC7385 firmware image to the hardware 23b55d98c6STimur Tabi * 24b55d98c6STimur Tabi * This function takes a pointer to a VSC7385 firmware image and a size, and 25b55d98c6STimur Tabi * uploads that firmware to the VSC7385. 26b55d98c6STimur Tabi * 27b55d98c6STimur Tabi * This firmware is typically located at a board-specific flash address, 28b55d98c6STimur Tabi * and the size is typically 8KB. 29b55d98c6STimur Tabi * 30b55d98c6STimur Tabi * The firmware is Vitesse proprietary. 31b55d98c6STimur Tabi * 32b55d98c6STimur Tabi * Further details on the register information can be obtained from Vitesse. 33b55d98c6STimur Tabi */ 34b55d98c6STimur Tabi int vsc7385_upload_firmware(void *firmware, unsigned int size) 35b55d98c6STimur Tabi { 36b55d98c6STimur Tabi u8 *fw = firmware; 37b55d98c6STimur Tabi unsigned int i; 38b55d98c6STimur Tabi 396d0f6bcfSJean-Christophe PLAGNIOL-VILLARD u32 *gloreset = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c050); 406d0f6bcfSJean-Christophe PLAGNIOL-VILLARD u32 *icpu_ctrl = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c040); 416d0f6bcfSJean-Christophe PLAGNIOL-VILLARD u32 *icpu_addr = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c044); 426d0f6bcfSJean-Christophe PLAGNIOL-VILLARD u32 *icpu_data = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c048); 436d0f6bcfSJean-Christophe PLAGNIOL-VILLARD u32 *icpu_rom_map = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c070); 44b55d98c6STimur Tabi #ifdef DEBUG 456d0f6bcfSJean-Christophe PLAGNIOL-VILLARD u32 *chipid = (u32 *) (CONFIG_SYS_VSC7385_BASE + 0x1c060); 46b55d98c6STimur Tabi #endif 47b55d98c6STimur Tabi 48b55d98c6STimur Tabi out_be32(gloreset, 3); 49b55d98c6STimur Tabi udelay(200); 50b55d98c6STimur Tabi 51b55d98c6STimur Tabi out_be32(icpu_ctrl, 0x8E); 52b55d98c6STimur Tabi udelay(20); 53b55d98c6STimur Tabi 54b55d98c6STimur Tabi out_be32(icpu_rom_map, 1); 55b55d98c6STimur Tabi udelay(20); 56b55d98c6STimur Tabi 57b55d98c6STimur Tabi /* Write the firmware to I-RAM */ 58b55d98c6STimur Tabi out_be32(icpu_addr, 0); 59b55d98c6STimur Tabi udelay(20); 60b55d98c6STimur Tabi 61b55d98c6STimur Tabi for (i = 0; i < size; i++) { 62b55d98c6STimur Tabi out_be32(icpu_data, fw[i]); 63b55d98c6STimur Tabi udelay(20); 64b55d98c6STimur Tabi if (ctrlc()) 65b55d98c6STimur Tabi return -EINTR; 66b55d98c6STimur Tabi } 67b55d98c6STimur Tabi 68b55d98c6STimur Tabi /* Read back and compare */ 69b55d98c6STimur Tabi out_be32(icpu_addr, 0); 70b55d98c6STimur Tabi udelay(20); 71b55d98c6STimur Tabi 72b55d98c6STimur Tabi for (i = 0; i < size; i++) { 73b55d98c6STimur Tabi u8 value; 74b55d98c6STimur Tabi 75b55d98c6STimur Tabi value = (u8) in_be32(icpu_data); 76b55d98c6STimur Tabi udelay(20); 77b55d98c6STimur Tabi if (value != fw[i]) { 78b55d98c6STimur Tabi debug("VSC7385: Upload mismatch: address 0x%x, " 79b55d98c6STimur Tabi "read value 0x%x, image value 0x%x\n", 80b55d98c6STimur Tabi i, value, fw[i]); 81b55d98c6STimur Tabi 82b55d98c6STimur Tabi return -EIO; 83b55d98c6STimur Tabi } 84b55d98c6STimur Tabi if (ctrlc()) 85b55d98c6STimur Tabi break; 86b55d98c6STimur Tabi } 87b55d98c6STimur Tabi 88b55d98c6STimur Tabi out_be32(icpu_ctrl, 0x0B); 89b55d98c6STimur Tabi udelay(20); 90b55d98c6STimur Tabi 91b55d98c6STimur Tabi #ifdef DEBUG 92b55d98c6STimur Tabi printf("VSC7385: Chip ID is %08x\n", in_be32(chipid)); 93b55d98c6STimur Tabi udelay(20); 94b55d98c6STimur Tabi #endif 95b55d98c6STimur Tabi 96b55d98c6STimur Tabi return 0; 97b55d98c6STimur Tabi } 98