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a5b225181e
Add code for configuring IDT8T49N222A device for various output refclks
- The IDT8T49N222A is a low phase noise Frequency Translator / Synthesizer with
alarm and monitoring functions suitable for networking and
communications applications. It is able to generate wide range of output
frequencies.
- In B4860QDS, it has been used to generate different refclks to SerDes modules
- Programming of these devices are performed by I2C interface.
Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
120 lines
4.4 KiB
C
120 lines
4.4 KiB
C
/*
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* Copyright 2013 Freescale Semiconductor, Inc.
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* Author: Shaveta Leekha <shaveta@freescale.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __IDT8T49N222A_SERDES_CLK_H_
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#define __IDT8T49N222A_SERDES_CLK_H_ 1
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#include <common.h>
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#include <i2c.h>
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#include "qixis.h"
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#include "../b4860qds/b4860qds_qixis.h"
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#include <errno.h>
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#define NUM_IDT_REGS 23
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#define NUM_IDT_REGS_FEEDBACK 12
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#define NUM_IDT_REGS_156_25 11
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/* CLK */
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enum serdes_refclk {
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SERDES_REFCLK_100, /* refclk 100Mhz */
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SERDES_REFCLK_122_88, /* refclk 122.88Mhz */
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SERDES_REFCLK_125, /* refclk 125Mhz */
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SERDES_REFCLK_156_25, /* refclk 156.25Mhz */
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SERDES_REFCLK_NONE = -1,
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};
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/* configuration values for IDT registers for Output Refclks:
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* Refclk1 = 122.88MHz Refclk2 = 122.88MHz
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*/
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static const u8 idt_conf_122_88[23][2] = { {0x00, 0x3C}, {0x01, 0x00},
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{0x02, 0x9F}, {0x03, 0x00}, {0x04, 0x0B}, {0x05, 0x00},
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{0x06, 0x00}, {0x07, 0x00}, {0x08, 0x7D}, {0x09, 0x00},
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{0x0A, 0x08}, {0x0B, 0x00}, {0x0C, 0xDC}, {0x0D, 0x00},
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{0x0E, 0x00}, {0x0F, 0x00}, {0x10, 0x12}, {0x11, 0x12},
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{0x12, 0xB9}, {0x13, 0xBC}, {0x14, 0x40}, {0x15, 0x08},
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{0x16, 0xA0} };
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/* configuration values for IDT registers for Output Refclks:
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* Refclk1 not equal to 122.88MHz Refclk2 not equal to 122.88MHz
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*/
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static const u8 idt_conf_not_122_88[23][2] = { {0x00, 0x00}, {0x01, 0x00},
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{0x02, 0x00}, {0x03, 0x00}, {0x04, 0x0A}, {0x05, 0x00},
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{0x06, 0x00}, {0x07, 0x00}, {0x08, 0x7D}, {0x09, 0x00},
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{0x0A, 0x08}, {0x0B, 0x00}, {0x0C, 0xDC}, {0x0D, 0x00},
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{0x0E, 0x00}, {0x0F, 0x00}, {0x10, 0x14}, {0x11, 0x14},
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{0x12, 0x35}, {0x13, 0xBC}, {0x14, 0x40}, {0x15, 0x08},
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{0x16, 0xA0} };
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/* Reconfiguration values for some of IDT registers for
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* Output Refclks:
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* Refclk1 = 122.88MHz Refclk2 = 122.88MHz
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* and with feedback as 1
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*/
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static const u8 idt_conf_122_88_feedback[12][2] = { {0x00, 0x50}, {0x02, 0xD7},
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{0x04, 0x89}, {0x06, 0xC3}, {0x08, 0xC0}, {0x0A, 0x07},
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{0x0C, 0x80}, {0x10, 0x10}, {0x11, 0x10}, {0x12, 0x1B},
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{0x14, 0x00}, {0x15, 0xE8} };
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/* configuration values for IDT registers for Output Refclks:
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* Refclk1 : 156.25MHz Refclk2 : 156.25MHz
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*/
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static const u8 idt_conf_156_25[11][2] = { {0x04, 0x19}, {0x06, 0x03},
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{0x08, 0xC0}, {0x0A, 0x07}, {0x0C, 0xA1}, {0x0E, 0x20},
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{0x10, 0x10}, {0x11, 0x10}, {0x12, 0xB5}, {0x13, 0x3C},
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{0x15, 0xE8} };
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/* configuration values for IDT registers for Output Refclks:
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* Refclk1 : 100MHz Refclk2 : 156.25MHz
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*/
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static const u8 idt_conf_100_156_25[11][2] = { {0x04, 0x19}, {0x06, 0x03},
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{0x08, 0xC0}, {0x0A, 0x07}, {0x0C, 0xA1}, {0x0E, 0x20},
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{0x10, 0x19}, {0x11, 0x10}, {0x12, 0xB5}, {0x13, 0x3C},
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{0x15, 0xE8} };
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/* configuration values for IDT registers for Output Refclks:
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* Refclk1 : 125MHz Refclk2 : 156.25MHz
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*/
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static const u8 idt_conf_125_156_25[11][2] = { {0x04, 0x19}, {0x06, 0x03},
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{0x08, 0xC0}, {0x0A, 0x07}, {0x0C, 0xA1}, {0x0E, 0x20},
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{0x10, 0x14}, {0x11, 0x10}, {0x12, 0xB5}, {0x13, 0x3C},
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{0x15, 0xE8} };
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/* configuration values for IDT registers for Output Refclks:
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* Refclk1 : 156.25MHz Refclk2 : 100MHz
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*/
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static const u8 idt_conf_156_25_100[11][2] = { {0x04, 0x19}, {0x06, 0x03},
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{0x08, 0xC0}, {0x0A, 0x07}, {0x0C, 0xA1}, {0x0E, 0x20},
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{0x10, 0x10}, {0x11, 0x19}, {0x12, 0xB5}, {0x13, 0x3C},
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{0x15, 0xE8} };
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/* configuration values for IDT registers for Output Refclks:
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* Refclk1 : 156.25MHz Refclk2 : 125MHz
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*/
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static const u8 idt_conf_156_25_125[11][2] = { {0x04, 0x19}, {0x06, 0x03},
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{0x08, 0xC0}, {0x0A, 0x07}, {0x0C, 0xA1}, {0x0E, 0x20},
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{0x10, 0x10}, {0x11, 0x14}, {0x12, 0xB5}, {0x13, 0x3C},
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{0x15, 0xE8} };
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int set_serdes_refclk(u8 idt_addr, u8 serdes_num,
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enum serdes_refclk refclk1,
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enum serdes_refclk refclk2, u8 feedback);
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#endif /*__IDT8T49N222A_SERDES_CLK_H_ */
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