summaryrefslogtreecommitdiffstats
path: root/arch/arm/include/asm/arch-ls102xa
diff options
context:
space:
mode:
authorZhuoyu Zhang <Zhuoyu.Zhang@freescale.com>2015-08-17 18:55:12 +0800
committerYork Sun <yorksun@freescale.com>2015-09-01 21:49:20 -0500
commit03c22449c5b7daff0a43291b34564a52660b83b8 (patch)
tree5925e5f7cbbcc63e89d40674300b635936d1b94a /arch/arm/include/asm/arch-ls102xa
parentec93af0dec4c9f17cefadd24d54edf5c5b91bc8d (diff)
downloadtalos-obmc-uboot-03c22449c5b7daff0a43291b34564a52660b83b8.tar.gz
talos-obmc-uboot-03c22449c5b7daff0a43291b34564a52660b83b8.zip
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 <Zhuoyu.Zhang@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch/arm/include/asm/arch-ls102xa')
-rw-r--r--arch/arm/include/asm/arch-ls102xa/ls102xa_devdis.h52
1 files changed, 52 insertions, 0 deletions
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 <fsl_devdis.h>
+
+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
OpenPOWER on IntegriCloud