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Code Issues Releases Activity

Add support for reading root key on A83T/A64.

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This commit is contained in:
Jared McNeill 2016-09-03 15:22:50 +00:00
parent 3128fa9a5a
commit 0503b90dde
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=305349
1 changed files with 18 additions and 14 deletions
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32
sys/arm/allwinner/aw_sid.c
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@ -52,6 +52,11 @@ __FBSDID("$FreeBSD$");
#define SID_THERMAL_CALIB0 (SID_SRAM + 0x34)
#define SID_THERMAL_CALIB1 (SID_SRAM + 0x38)
#define A10_ROOT_KEY_OFF 0x0
#define A83T_ROOT_KEY_OFF SID_SRAM
#define ROOT_KEY_SIZE 4
enum sid_type {
A10_SID = 1,
A20_SID,
@ -67,7 +72,8 @@ static struct ofw_compat_data compat_data[] = {
struct aw_sid_softc {
struct resource *res;
int type;
int type;
bus_size_t root_key_off;
};
static struct aw_sid_softc *aw_sid_sc;
@ -81,9 +87,6 @@ enum sid_keys {
AW_SID_ROOT_KEY,
};
#define ROOT_KEY_OFF 0x0
#define ROOT_KEY_SIZE 4
#define RD4(sc, reg) bus_read_4((sc)->res, (reg))
#define WR4(sc, reg, val) bus_write_4((sc)->res, (reg), (val))
@ -118,17 +121,20 @@ aw_sid_attach(device_t dev)
sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data;
switch (sc->type) {
case A10_SID:
case A20_SID:
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "rootkey",
CTLTYPE_STRING | CTLFLAG_RD,
dev, AW_SID_ROOT_KEY, aw_sid_sysctl, "A", "Root Key");
case A83T_SID:
sc->root_key_off = A83T_ROOT_KEY_OFF;
break;
default:
sc->root_key_off = A10_ROOT_KEY_OFF;
break;
}
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "rootkey",
CTLTYPE_STRING | CTLFLAG_RD,
dev, AW_SID_ROOT_KEY, aw_sid_sysctl, "A", "Root Key");
return (0);
}
@ -159,11 +165,9 @@ aw_sid_get_rootkey(u_char *out)
sc = aw_sid_sc;
if (sc == NULL)
return (ENXIO);
if (sc->type != A10_SID && sc->type != A20_SID)
return (ENXIO);
for (i = 0; i < ROOT_KEY_SIZE ; i++) {
tmp = RD4(aw_sid_sc, ROOT_KEY_OFF + (i * 4));
tmp = RD4(aw_sid_sc, aw_sid_sc->root_key_off + (i * 4));
be32enc(&out[i * 4], tmp);
}