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fsl: csu: add an API to set individual device access permission

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Add this API to make the individual device is able to be set to
the specified permission.

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 19:03:24 +08:00 • committed by York Sun
parent 341238fd13
commit c37fdbdbb0
2 changed files with 21 additions and 14 deletions
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34
board/freescale/common/ns_access.c
View file

@ -9,25 +9,31 @@
#include <fsl_csu.h>
#include <asm/arch/ns_access.h>
static void enable_devices_ns_access(struct csu_ns_dev *ns_dev, uint32_t num)
void set_devices_ns_access(struct csu_ns_dev *ns_dev, u16 val)
{
u32 *base = (u32 *)CONFIG_SYS_FSL_CSU_ADDR;
u32 *reg;
uint32_t val;
uint32_t tmp;
reg = base + ns_dev->ind / 2;
tmp = in_be32(reg);
if (ns_dev->ind % 2 == 0) {
tmp &= 0x0000ffff;
tmp |= val << 16;
} else {
tmp &= 0xffff0000;
tmp |= val;
}
out_be32(reg, tmp);
}
static void enable_devices_ns_access(struct csu_ns_dev *ns_dev, uint32_t num)
{
int i;
for (i = 0; i < num; i++) {
reg = base + ns_dev[i].ind / 2;
val = in_be32(reg);
if (ns_dev[i].ind % 2 == 0) {
val &= 0x0000ffff;
val |= ns_dev[i].val << 16;
} else {
val &= 0xffff0000;
val |= ns_dev[i].val;
}
out_be32(reg, val);
}
for (i = 0; i < num; i++)
set_devices_ns_access(ns_dev + i, ns_dev[i].val);
}
void enable_layerscape_ns_access(void)

1
include/fsl_csu.h
View file

@ -30,5 +30,6 @@ struct csu_ns_dev {
};
void enable_layerscape_ns_access(void);
void set_devices_ns_access(struct csu_ns_dev *ns_dev, u16 val);
#endif