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bdk: clk: reduce i2c freq input to save power

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CTCaer
2026-02-14 23:59:39 +02:00
parent efebd2887e
commit 38e73d6492
1 changed files with 8 additions and 8 deletions
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16
bdk/soc/clock.c
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@@ -1,6 +1,6 @@
/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018-2025 CTCaer
* Copyright (c) 2018-2026 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -89,14 +89,14 @@ static const clk_rst_t _clock_uart[] = {
{ RST_DEV_Y_SET, CLK_ENB_Y_SET, CLK_RST_CONTROLLER_CLK_SOURCE_UARTAPE, CLK_Y_UARTAPE, 0, CLK_SRC_DIV(2) }
};
//I2C default parameters - TLOW: 4, THIGH: 2, DEBOUNCE: 0, FM_DIV: 26.
// I2C Fout = Fin / (TLOW + THIGH + 2) / FM_DIV). Default parameters - TLOW: 4, THIGH: 2, DEBOUNCE: 0, FM_DIV: 6.
static const clk_rst_t _clock_i2c[] = {
{ RST_DEV_L_SET, CLK_ENB_L_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C1, CLK_L_I2C1, 0, CLK_SRC_DIV(10.5) }, // 20.4 MHz -> 100 KHz
{ RST_DEV_H_SET, CLK_ENB_H_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C2, CLK_H_I2C2, 0, CLK_SRC_DIV(3) }, // 81.6 MHz -> 400 KHz
{ RST_DEV_U_SET, CLK_ENB_U_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C3, CLK_U_I2C3, 0, CLK_SRC_DIV(3) }, // 81.6 MHz -> 400 KHz
{ RST_DEV_V_SET, CLK_ENB_V_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C4, CLK_V_I2C4, 0, CLK_SRC_DIV(10.5) }, // 20.4 MHz -> 100 KHz
{ RST_DEV_H_SET, CLK_ENB_H_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C5, CLK_H_I2C5, 0, CLK_SRC_DIV(3) }, // 81.6 MHz -> 400 KHz
{ RST_DEV_X_SET, CLK_ENB_X_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C6, CLK_X_I2C6, 0, CLK_SRC_DIV(10.5) } // 20.4 MHz -> 100 KHz
{ RST_DEV_L_SET, CLK_ENB_L_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C1, CLK_L_I2C1, 6, CLK_I2C_SRC_DIV(4) }, // 4.8 MHz -> 100 KHz
{ RST_DEV_H_SET, CLK_ENB_H_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C2, CLK_H_I2C2, 6, CLK_I2C_SRC_DIV(1) }, // 19.2 MHz -> 400 KHz
{ RST_DEV_U_SET, CLK_ENB_U_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C3, CLK_U_I2C3, 6, CLK_I2C_SRC_DIV(1) }, // 19.2 MHz -> 400 KHz
{ RST_DEV_V_SET, CLK_ENB_V_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C4, CLK_V_I2C4, 6, CLK_I2C_SRC_DIV(4) }, // 4.8 MHz -> 100 KHz
{ RST_DEV_H_SET, CLK_ENB_H_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C5, CLK_H_I2C5, 6, CLK_I2C_SRC_DIV(1) }, // 19.2 MHz -> 400 KHz
{ RST_DEV_X_SET, CLK_ENB_X_SET, CLK_RST_CONTROLLER_CLK_SOURCE_I2C6, CLK_X_I2C6, 6, CLK_I2C_SRC_DIV(4) } // 4.8 MHz -> 100 KHz
};
static clk_rst_t _clock_se = {