diff options
Diffstat (limited to 'u-boot/board/micronas/vct/ebi_smc911x.c')
| -rw-r--r-- | u-boot/board/micronas/vct/ebi_smc911x.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/u-boot/board/micronas/vct/ebi_smc911x.c b/u-boot/board/micronas/vct/ebi_smc911x.c new file mode 100644 index 0000000..c9ef33d --- /dev/null +++ b/u-boot/board/micronas/vct/ebi_smc911x.c @@ -0,0 +1,108 @@ +/* + * (C) Copyright 2008 Stefan Roese <sr@denx.de>, DENX Software Engineering + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <netdev.h> +#include <asm/io.h> +#include "vct.h" + +/* + * EBI initialization for SMC911x access + */ +int ebi_init_smc911x(void) +{ + reg_write(EBI_DEV1_CONFIG1(EBI_BASE), 0x00003020); + reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004F); + + reg_write(EBI_DEV1_TIM1_RD1(EBI_BASE), 0x00501100); + reg_write(EBI_DEV1_TIM1_RD2(EBI_BASE), 0x0FF02111); + + reg_write(EBI_DEV1_TIM_EXT(EBI_BASE), 0xFFF00000); + reg_write(EBI_DEV1_EXT_ACC(EBI_BASE), 0x0FFFFFFF); + + reg_write(EBI_DEV1_TIM1_WR1(EBI_BASE), 0x05001100); + reg_write(EBI_DEV1_TIM1_WR2(EBI_BASE), 0x3FC21110); + + return 0; +} + +/* + * Accessor functions replacing the "weak" functions in + * drivers/net/smc911x.c + */ +u32 smc911x_reg_read(struct eth_device *dev, u32 addr) +{ + volatile u32 data; + + addr += dev->iobase; + reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004F); + ebi_wait(); + reg_write(EBI_CPU_IO_ACCS(EBI_BASE), (EXT_DEVICE_CHANNEL_1 | addr)); + ebi_wait(); + data = reg_read(EBI_IO_ACCS_DATA(EBI_BASE)); + + return (data); +} + +void smc911x_reg_write(struct eth_device *dev, u32 addr, u32 data) +{ + addr += dev->iobase; + reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004F); + ebi_wait(); + reg_write(EBI_IO_ACCS_DATA(EBI_BASE), data); + reg_write(EBI_CPU_IO_ACCS(EBI_BASE), + EXT_DEVICE_CHANNEL_1 | EBI_CPU_WRITE | addr); + ebi_wait(); +} + +void pkt_data_push(struct eth_device *dev, u32 addr, u32 data) +{ + addr += dev->iobase; + reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004A); + ebi_wait(); + reg_write(EBI_IO_ACCS_DATA(EBI_BASE), data); + reg_write(EBI_CPU_IO_ACCS(EBI_BASE), + EXT_DEVICE_CHANNEL_1 | EBI_CPU_WRITE | addr); + ebi_wait(); + + return; +} + +u32 pkt_data_pull(struct eth_device *dev, u32 addr) +{ + volatile u32 data; + + addr += dev->iobase; + reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004A); + ebi_wait(); + reg_write(EBI_CPU_IO_ACCS(EBI_BASE), (EXT_DEVICE_CHANNEL_1 | addr)); + ebi_wait(); + data = reg_read(EBI_IO_ACCS_DATA(EBI_BASE)); + + return data; +} + +int board_eth_init(bd_t *bis) +{ + int rc = 0; +#ifdef CONFIG_SMC911X + rc = smc911x_initialize(0, CONFIG_DRIVER_SMC911X_BASE); +#endif + return rc; +} |