From 03c22449c5b7daff0a43291b34564a52660b83b8 Mon Sep 17 00:00:00 2001 From: Zhuoyu Zhang Date: Mon, 17 Aug 2015 18:55:12 +0800 Subject: arm/ls102xa:add hwconfig setting to support disable unused devices DEVDISRn registers provides a mechanism for gating clocks of IP blocks that are not used. Here we implement hwconfig option to allow users to disable unused peripherals on the board. For ex. If eSDHC/qDMA/eDMA are unused and with disabled status in dts, User can enable CONFIG_FSL_DEVICE_DISABLE and set "devdis:esdhc,qdma,edma" in hwconfig, thus ESDHC controller & eDMA/qDMA will be clock gated to save more power. Signed-off-by: Zhuoyu Zhang Reviewed-by: York Sun --- arch/arm/include/asm/arch-ls102xa/ls102xa_devdis.h | 52 ++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 arch/arm/include/asm/arch-ls102xa/ls102xa_devdis.h (limited to 'arch') diff --git a/arch/arm/include/asm/arch-ls102xa/ls102xa_devdis.h b/arch/arm/include/asm/arch-ls102xa/ls102xa_devdis.h new file mode 100644 index 0000000000..3e9e9eab1c --- /dev/null +++ b/arch/arm/include/asm/arch-ls102xa/ls102xa_devdis.h @@ -0,0 +1,52 @@ +/* + * Copyright 2015 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __FSL_LS102XA_DEVDIS_H_ +#define __FSL_LS102XA_DEVDIS_H_ + +#include + +const struct devdis_table devdis_tbl[] = { + { "pbl", 0x0, 0x80000000 }, /* PBL */ + { "esdhc", 0x0, 0x20000000 }, /* eSDHC */ + { "qdma", 0x0, 0x800000 }, /* qDMA */ + { "edma", 0x0, 0x400000 }, /* eDMA */ + { "usb3", 0x0, 0x84000 }, /* USB3.0 controller and PHY*/ + { "usb2", 0x0, 0x40000 }, /* USB2.0 controller */ + { "sata", 0x0, 0x8000 }, /* SATA */ + { "sec", 0x0, 0x200 }, /* SEC */ + { "dcu", 0x0, 0x2 }, /* Display controller Unit */ + { "qe", 0x0, 0x1 }, /* QUICC Engine */ + { "etsec1", 0x1, 0x80000000 }, /* eTSEC1 controller */ + { "etesc2", 0x1, 0x40000000 }, /* eTSEC2 controller */ + { "etsec3", 0x1, 0x20000000 }, /* eTSEC3 controller */ + { "pex1", 0x2, 0x80000000 }, /* PCIE controller 1 */ + { "pex2", 0x2, 0x40000000 }, /* PCIE controller 2 */ + { "duart1", 0x3, 0x20000000 }, /* DUART1 */ + { "duart2", 0x3, 0x10000000 }, /* DUART2 */ + { "qspi", 0x3, 0x8000000 }, /* QSPI */ + { "ddr", 0x4, 0x80000000 }, /* DDR */ + { "ocram1", 0x4, 0x8000000 }, /* OCRAM1 */ + { "ifc", 0x4, 0x800000 }, /* IFC */ + { "gpio", 0x4, 0x400000 }, /* GPIO */ + { "dbg", 0x4, 0x200000 }, /* DBG */ + { "can1", 0x4, 0x80000 }, /* FlexCAN1 */ + { "can2_4", 0x4, 0x40000 }, /* FlexCAN2_3_4 */ + { "ftm2_8", 0x4, 0x20000 }, /* FlexTimer2_3_4_5_6_7_8 */ + { "secmon", 0x4, 0x4000 }, /* Security Monitor */ + { "wdog1_2", 0x4, 0x400 }, /* WatchDog1_2 */ + { "i2c2_3", 0x4, 0x200 }, /* I2C2_3 */ + { "sai1_4", 0x4, 0x100 }, /* SAI1_2_3_4 */ + { "lpuart2_6", 0x4, 0x80 }, /* LPUART2_3_4_5_6 */ + { "dspi1_2", 0x4, 0x40 }, /* DSPI1_2 */ + { "asrc", 0x4, 0x20 }, /* ASRC */ + { "spdif", 0x4, 0x10 }, /* SPDIF */ + { "i2c1", 0x4, 0x4 }, /* I2C1 */ + { "lpuart1", 0x4, 0x2 }, /* LPUART1 */ + { "ftm1", 0x4, 0x1 }, /* FlexTimer1 */ +}; + +#endif -- cgit v1.2.1