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arm: meson: implement calls to secure monitor

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Implement calls to secure monitor to read the MAC address from e-fuse.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
This commit is contained in:
Beniamino Galvani
2016-05-08 08:30:17 +02:00
committed by Tom Rini
parent bfcef28ae4
commit c7757d4695
5 changed files with 87 additions and 1 deletions
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16
board/hardkernel/odroid-c2/odroid-c2.c
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@@ -7,9 +7,15 @@
#include <common.h>
#include <asm/io.h>
#include <asm/arch/gxbb.h>
#include <asm/arch/sm.h>
#include <dm/platdata.h>
#include <phy.h>
#define EFUSE_SN_OFFSET 20
#define EFUSE_SN_SIZE 16
#define EFUSE_MAC_OFFSET 52
#define EFUSE_MAC_SIZE 6
int board_init(void)
{
return 0;
@@ -27,6 +33,9 @@ U_BOOT_DEVICE(meson_eth) = {
int misc_init_r(void)
{
u8 mac_addr[EFUSE_MAC_SIZE];
ssize_t len;
/* Select Ethernet function */
setbits_le32(GXBB_PINMUX(6), 0x3fff);
@@ -47,5 +56,12 @@ int misc_init_r(void)
mdelay(10);
setbits_le32(GXBB_GPIO_OUT(3), BIT(14));
if (!eth_getenv_enetaddr("ethaddr", mac_addr)) {
len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
mac_addr, EFUSE_MAC_SIZE);
if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
eth_setenv_enetaddr("ethaddr", mac_addr);
}
return 0;
}