@@ -5,6 +5,7 @@
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <asm/arch/sys_proto.h>
static void do_cancel_out(u32 *num, u32 *den, u32 factor)
{
while (1) {
@@ -39,3 +40,23 @@ void cancel_out(u32 *num, u32 *den, u32 den_limit)
*den = (*den + 1) / 2;
}
}
+
+void __weak usb_fake_mac_from_die_id(u32 *id)
+{
+ uint8_t device_mac[6];
+
+ if (!getenv("usbethaddr")) {
+ /*
+ * create a fake MAC address from the processor ID code.
+ * first byte is 0x02 to signify locally administered.
+ */
+ device_mac[0] = 0x02;
+ device_mac[1] = id[3] & 0xff;
+ device_mac[2] = id[2] & 0xff;
+ device_mac[3] = id[1] & 0xff;
+ device_mac[4] = id[0] & 0xff;
+ device_mac[5] = (id[0] >> 8) & 0xff;
+
+ eth_setenv_enetaddr("usbethaddr", device_mac);
+ }
+}
@@ -574,6 +574,8 @@ void abb_setup(u32 fuse, u32 ldovbb, u32 setup, u32 control,
u32 txdone, u32 txdone_mask, u32 opp);
s8 abb_setup_ldovbb(u32 fuse, u32 ldovbb);
+void usb_fake_mac_from_die_id(u32 *id);
+
/* HW Init Context */
#define OMAP_INIT_CONTEXT_SPL 0
#define OMAP_INIT_CONTEXT_UBOOT_FROM_NOR 1
@@ -119,28 +119,19 @@ static void enable_host_clocks(void)
int misc_init_r(void)
{
int reg;
- uint8_t device_mac[6];
+ u32 id[4];
#ifdef CONFIG_PALMAS_POWER
palmas_init_settings();
#endif
- if (!getenv("usbethaddr")) {
- reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;
-
- /*
- * create a fake MAC address from the processor ID code.
- * first byte is 0x02 to signify locally administered.
- */
- device_mac[0] = 0x02;
- device_mac[1] = readl(reg + 0x10) & 0xff;
- device_mac[2] = readl(reg + 0xC) & 0xff;
- device_mac[3] = readl(reg + 0x8) & 0xff;
- device_mac[4] = readl(reg) & 0xff;
- device_mac[5] = (readl(reg) >> 8) & 0xff;
-
- eth_setenv_enetaddr("usbethaddr", device_mac);
- }
+ reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;
+
+ id[0] = readl(reg);
+ id[1] = readl(reg + 0x8);
+ id[2] = readl(reg + 0xC);
+ id[3] = readl(reg + 0x10);
+ usb_fake_mac_from_die_id(id);
return 0;
}
@@ -193,7 +193,7 @@ int misc_init_r(void)
{
int phy_type;
u32 auxclk, altclksrc;
- uint8_t device_mac[6];
+ u32 id[4];
/* EHCI is not supported on ES1.0 */
if (omap_revision() == OMAP4430_ES1_0)
@@ -247,20 +247,11 @@ int misc_init_r(void)
writel(altclksrc, &scrm->altclksrc);
- if (!getenv("usbethaddr")) {
- /*
- * create a fake MAC address from the processor ID code.
- * first byte is 0x02 to signify locally administered.
- */
- device_mac[0] = 0x02;
- device_mac[1] = readl(STD_FUSE_DIE_ID_3) & 0xff;
- device_mac[2] = readl(STD_FUSE_DIE_ID_2) & 0xff;
- device_mac[3] = readl(STD_FUSE_DIE_ID_1) & 0xff;
- device_mac[4] = readl(STD_FUSE_DIE_ID_0) & 0xff;
- device_mac[5] = (readl(STD_FUSE_DIE_ID_0) >> 8) & 0xff;
-
- eth_setenv_enetaddr("usbethaddr", device_mac);
- }
+ id[0] = readl(STD_FUSE_DIE_ID_0);
+ id[1] = readl(STD_FUSE_DIE_ID_1);
+ id[2] = readl(STD_FUSE_DIE_ID_2);
+ id[3] = readl(STD_FUSE_DIE_ID_3);
+ usb_fake_mac_from_die_id(id);
return 0;
}
TI platforms such as OMAP5uevm, PandaBoard, use equivalent logic to generate fake USB MAC address from device unique DIE ID. Consolidate this to a generic location such that other TI platforms such as BeagleBoard-XM can also use the same. NOTE: at this point in time, I dont yet see a need for a generic dummy ethernet MAC address creation function, but if there is a need in the future, this can be further abstracted out. Signed-off-by: Nishanth Menon <nm@ti.com> --- arch/arm/cpu/armv7/omap-common/utils.c | 21 +++++++++++++++++++++ arch/arm/include/asm/omap_common.h | 2 ++ board/ti/omap5_uevm/evm.c | 25 ++++++++----------------- board/ti/panda/panda.c | 21 ++++++--------------- 4 files changed, 37 insertions(+), 32 deletions(-)