1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2008 Nobuhiro Iwamatsu 4 * Copyright (C) 2008 Renesas Solutions Corp. 5 * 6 * u-boot/board/rsk7203/rsk7203.c 7 */ 8 9 #include <common.h> 10 #include <net.h> 11 #include <netdev.h> 12 #include <asm/io.h> 13 #include <asm/processor.h> 14 15 int checkboard(void) 16 { 17 puts("BOARD: Renesas Technology RSK7203\n"); 18 return 0; 19 } 20 21 int board_init(void) 22 { 23 return 0; 24 } 25 26 void led_set_state(unsigned short value) 27 { 28 } 29 30 /* 31 * The RSK board has the SMSC9118 wired up 'incorrectly'. 32 * Byte-swapping is necessary, and so poor performance is inevitable. 33 * This problem cannot evade by the swap function of CHIP, this can 34 * evade by software Byte-swapping. 35 * And this has problem by FIFO access only. pkt_data_pull/pkt_data_push 36 * functions necessary to solve this problem. 37 */ 38 u32 pkt_data_pull(struct eth_device *dev, u32 addr) 39 { 40 volatile u16 *addr_16 = (u16 *)(dev->iobase + addr); 41 return (u32)((swab16(*addr_16) << 16) & 0xFFFF0000)\ 42 | swab16(*(addr_16 + 1)); 43 } 44 45 void pkt_data_push(struct eth_device *dev, u32 addr, u32 val) 46 { 47 addr += dev->iobase; 48 *(volatile u16 *)(addr + 2) = swab16((u16)val); 49 *(volatile u16 *)(addr) = swab16((u16)(val >> 16)); 50 } 51 52 int board_eth_init(bd_t *bis) 53 { 54 int rc = 0; 55 #ifdef CONFIG_SMC911X 56 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); 57 #endif 58 return rc; 59 } 60