1 // SPDX-License-Identifier: GPL-2.0-or-later
38 static void slic_write(struct spi_device *spi, u16 addr,  in slic_write()  argument
43 	addr = bitrev16(addr) >> 1;  in slic_write()
45 	temp[0] = (u8)((addr >> 8) & 0x7f);  in slic_write()
46 	temp[1] = (u8)(addr & 0xfe);  in slic_write()
49 	/* write spi addr and value */  in slic_write()
53 static u8 slic_read(struct spi_device *spi, u16 addr)  in slic_read()  argument
58 	addr = bitrev16(addr) >> 1;  in slic_read()
59 	temp[0] = (u8)(((addr >> 8) & 0x7f) | 0x80);  in slic_read()
60 	temp[1] = (u8)(addr & 0xfe);  in slic_read()
82 	/* Receive E1 Mode, Framer Disabled */  in ds26522_e1_spec_config()
85 	/* Transmit E1 Mode, Framer Disable */  in ds26522_e1_spec_config()
88 	/* Receive E1 Mode Framer Enable */  in ds26522_e1_spec_config()
92 	/* Transmit E1 Mode Framer Enable */  in ds26522_e1_spec_config()
100 	/* RSYSCLK=2.048MHz, RSYNC-Output */  in ds26522_e1_spec_config()
107 	/* TSYSCLK=2.048MHz, TSYNC-Output */  in ds26522_e1_spec_config()
117 	/* Receive E1 Mode Framer Enable & init Done */  in ds26522_e1_spec_config()
121 	/* Transmit E1 Mode Framer Enable & init Done */  in ds26522_e1_spec_config()
125 	/* Configure LIU E1 mode */  in ds26522_e1_spec_config()
128 	/* E1 Mode default 75 ohm w/Transmit Impedance Matlinking */  in ds26522_e1_spec_config()
132 	/* E1 Mode default 75 ohm Long Haul w/Receive Impedance Matlinking */  in ds26522_e1_spec_config()
142 	u16 addr;  in slic_ds26522_init_configure()  local
174 	for (addr = DS26522_RF_ADDR_START; addr <= DS26522_RF_ADDR_END;  in slic_ds26522_init_configure()
175 	     addr++)  in slic_ds26522_init_configure()
176 		slic_write(spi, addr, 0);  in slic_ds26522_init_configure()
178 	for (addr = DS26522_TF_ADDR_START; addr <= DS26522_TF_ADDR_END;  in slic_ds26522_init_configure()
179 	     addr++)  in slic_ds26522_init_configure()
180 		slic_write(spi, addr, 0);  in slic_ds26522_init_configure()
182 	for (addr = DS26522_LIU_ADDR_START; addr <= DS26522_LIU_ADDR_END;  in slic_ds26522_init_configure()
183 	     addr++)  in slic_ds26522_init_configure()
184 		slic_write(spi, addr, 0);  in slic_ds26522_init_configure()
186 	for (addr = DS26522_BERT_ADDR_START; addr <= DS26522_BERT_ADDR_END;  in slic_ds26522_init_configure()
187 	     addr++)  in slic_ds26522_init_configure()
188 		slic_write(spi, addr, 0);  in slic_ds26522_init_configure()
208 	spi->bits_per_word = 8;  in slic_ds26522_probe()