xref: /openbmc/u-boot/drivers/misc/fsl_devdis.c (revision 1a68faac)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2015 Freescale Semiconductor, Inc.
4  * Author: Zhuoyu Zhang <Zhuoyu.Zhang@freescale.com>
5  */
6 #include <common.h>
7 #include <asm/io.h>
8 #include <asm/arch-ls102xa/immap_ls102xa.h>
9 #include <asm/arch-ls102xa/config.h>
10 #include <linux/compiler.h>
11 #include <hwconfig.h>
12 #include <fsl_devdis.h>
13 
14 void device_disable(const struct devdis_table *tbl, uint32_t num)
15 {
16 	int i;
17 	struct ccsr_gur __iomem *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
18 
19 	/*
20 	 * Extract hwconfig from environment and disable unused device.
21 	 */
22 	for (i = 0; i < num; i++) {
23 		if (hwconfig_sub("devdis", tbl[i].name))
24 			setbits_be32(&gur->devdisr + tbl[i].offset,
25 				tbl[i].mask);
26 	}
27 }
28 
29