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fsl: csu: add an API to set R/W permission to PCIe

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Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Hou Zhiqiang 2016-08-02 19:03:26 +08:00 committed by York Sun
parent c37fdbdbb0
commit 664b652058
3 changed files with 30 additions and 0 deletions
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1
arch/arm/include/asm/arch-fsl-layerscape/ns_access.h
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@ -6,6 +6,7 @@
#ifndef __FSL_NS_ACCESS_H_
#define __FSL_NS_ACCESS_H_
#include <fsl_csu.h>
enum csu_cslx_ind {
CSU_CSLX_PCIE2_IO = 0,

28
board/freescale/common/ns_access.c
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@ -8,6 +8,7 @@
#include <asm/io.h>
#include <fsl_csu.h>
#include <asm/arch/ns_access.h>
#include <asm/arch/fsl_serdes.h>
void set_devices_ns_access(struct csu_ns_dev *ns_dev, u16 val)
{
@ -40,3 +41,30 @@ void enable_layerscape_ns_access(void)
{
enable_devices_ns_access(ns_dev, ARRAY_SIZE(ns_dev));
}
void set_pcie_ns_access(int pcie, u16 val)
{
switch (pcie) {
#ifdef CONFIG_PCIE1
case PCIE1:
set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE1], val);
set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE1_IO], val);
return;
#endif
#ifdef CONFIG_PCIE2
case PCIE2:
set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE2], val);
set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE2_IO], val);
return;
#endif
#ifdef CONFIG_PCIE3
case PCIE3:
set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE3], val);
set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE3_IO], val);
return;
#endif
default:
debug("The PCIE%d doesn't exist!\n", pcie);
return;
}
}

1
include/fsl_csu.h
View File

@ -31,5 +31,6 @@ struct csu_ns_dev {
void enable_layerscape_ns_access(void);
void set_devices_ns_access(struct csu_ns_dev *ns_dev, u16 val);
void set_pcie_ns_access(int pcie, u16 val);
#endif