arm64: zynqmp: Add support for CG/EG/EV device detection
Version string has unused fields 31:20 which can be used for exporting 9
bits from efuse IPDISABLE regs to recognize eg/cg/ev devices.
These efuse bits are setup for certain devices.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/include/asm/arch-zynqmp/hardware.h b/arch/arm/include/asm/arch-zynqmp/hardware.h
index 5f2c98d..327046b 100644
--- a/arch/arm/include/asm/arch-zynqmp/hardware.h
+++ b/arch/arm/include/asm/arch-zynqmp/hardware.h
@@ -128,6 +128,8 @@
#define ZYNQMP_CSU_VERSION_VELOCE 0x2
#define ZYNQMP_CSU_VERSION_QEMU 0x3
+#define ZYNQMP_CSU_VERSION_EMPTY_SHIFT 20
+
#define ZYNQMP_SILICON_VER_MASK 0xF000
#define ZYNQMP_SILICON_VER_SHIFT 12
diff --git a/arch/arm/include/asm/arch-zynqmp/sys_proto.h b/arch/arm/include/asm/arch-zynqmp/sys_proto.h
index db1d5ef..f256c7d 100644
--- a/arch/arm/include/asm/arch-zynqmp/sys_proto.h
+++ b/arch/arm/include/asm/arch-zynqmp/sys_proto.h
@@ -15,6 +15,7 @@
enum {
IDCODE,
VERSION,
+ IDCODE2,
};
enum {
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index 5e22cc5..2b1d811 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -28,6 +28,7 @@
static const struct {
u32 id;
+ u32 ver;
char *name;
} zynqmp_devices[] = {
{
@@ -35,33 +36,88 @@
.name = "3eg",
},
{
+ .id = 0x10,
+ .ver = 0x2c,
+ .name = "3cg",
+ },
+ {
.id = 0x11,
.name = "2eg",
},
{
+ .id = 0x11,
+ .ver = 0x2c,
+ .name = "2cg",
+ },
+ {
.id = 0x20,
.name = "5ev",
},
{
+ .id = 0x20,
+ .ver = 0x100,
+ .name = "5eg",
+ },
+ {
+ .id = 0x20,
+ .ver = 0x12c,
+ .name = "5cg",
+ },
+ {
.id = 0x21,
.name = "4ev",
},
{
+ .id = 0x21,
+ .ver = 0x100,
+ .name = "4eg",
+ },
+ {
+ .id = 0x21,
+ .ver = 0x12c,
+ .name = "4cg",
+ },
+ {
.id = 0x30,
.name = "7ev",
},
{
+ .id = 0x30,
+ .ver = 0x100,
+ .name = "7eg",
+ },
+ {
+ .id = 0x30,
+ .ver = 0x12c,
+ .name = "7cg",
+ },
+ {
.id = 0x38,
.name = "9eg",
},
{
+ .id = 0x38,
+ .ver = 0x2c,
+ .name = "9cg",
+ },
+ {
.id = 0x39,
.name = "6eg",
},
{
+ .id = 0x39,
+ .ver = 0x2c,
+ .name = "6cg",
+ },
+ {
.id = 0x40,
.name = "11eg",
},
+ { /* For testing purpose only */
+ .id = 0x50,
+ .ver = 0x2c,
+ .name = "15cg",
+ },
{
.id = 0x50,
.name = "15eg",
@@ -95,6 +151,7 @@
* regs[0][31:0] = status of the operation
* regs[0][63:32] = CSU.IDCODE register
* regs[1][31:0] = CSU.version register
+ * regs[1][63:32] = CSU.IDCODE2 register
*/
switch (id) {
case IDCODE:
@@ -109,6 +166,11 @@
regs.regs[1] &= ZYNQMP_CSU_SILICON_VER_MASK;
val = regs.regs[1];
break;
+ case IDCODE2:
+ regs.regs[1] = lower_32_bits(regs.regs[1]);
+ regs.regs[1] >>= ZYNQMP_CSU_VERSION_EMPTY_SHIFT;
+ val = regs.regs[1];
+ break;
default:
printf("%s, Invalid Req:0x%x\n", __func__, id);
}
@@ -136,11 +198,13 @@
!defined(CONFIG_SPL_BUILD)
static char *zynqmp_get_silicon_idcode_name(void)
{
- u32 i, id;
+ u32 i, id, ver;
id = chip_id(IDCODE);
+ ver = chip_id(IDCODE2);
+
for (i = 0; i < ARRAY_SIZE(zynqmp_devices); i++) {
- if (zynqmp_devices[i].id == id)
+ if (zynqmp_devices[i].id == id && zynqmp_devices[i].ver == ver)
return zynqmp_devices[i].name;
}
return "unknown";