omap5: omap_die_id support

This introduces omap5 support for omap_die_id, which matches the common
omap_die_id definition. It replaces board-specific code to grab the die id bits.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@konsulko.com>

arch/arm/cpu/armv7/omap5/hwinit.c

@@ -379,6 +379,14 @@ void init_omap_revision(void)
 	init_cpu_configuration();
 }
 
+void omap_die_id(unsigned int *die_id)
+{
+	die_id[0] = readl((*ctrl)->control_std_fuse_die_id_0);
+	die_id[1] = readl((*ctrl)->control_std_fuse_die_id_1);
+	die_id[2] = readl((*ctrl)->control_std_fuse_die_id_2);
+	die_id[3] = readl((*ctrl)->control_std_fuse_die_id_3);
+}
+
 void reset_cpu(ulong ignored)
 {
 	u32 omap_rev = omap_revision();

arch/arm/cpu/armv7/omap5/prcm-regs.c

@@ -298,6 +298,10 @@ struct prcm_regs const omap5_es1_prcm = {
 struct omap_sys_ctrl_regs const omap5_ctrl = {
 	.control_status				= 0x4A002134,
 	.control_std_fuse_opp_vdd_mpu_2		= 0x4A0021B4,
+	.control_std_fuse_die_id_0		= 0x4A002200,
+	.control_std_fuse_die_id_1		= 0x4A002208,
+	.control_std_fuse_die_id_2		= 0x4A00220C,
+	.control_std_fuse_die_id_3		= 0x4A002210,
 	.control_phy_power_usb 			= 0x4A002370,
 	.control_phy_power_sata			= 0x4A002374,
 	.control_padconf_core_base		= 0x4A002800,

board/ti/dra7xx/evm.c

@@ -57,16 +57,15 @@ int board_init(void)
 int board_late_init(void)
 {
 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
-	u32 id[4];
+	unsigned int die_id[4] = { 0 };
 
 	if (omap_revision() == DRA722_ES1_0)
 		setenv("board_name", "dra72x");
 	else
 		setenv("board_name", "dra7xx");
 
-	id[0] = readl((*ctrl)->control_std_fuse_die_id_0);
-	id[1] = readl((*ctrl)->control_std_fuse_die_id_1);
-	usb_set_serial_num_from_die_id(id);
+	omap_die_id(die_id);
+	usb_set_serial_num_from_die_id(die_id);
 #endif
 	return 0;
 }

board/ti/omap5_uevm/evm.c

@@ -189,20 +189,14 @@ static void enable_host_clocks(void)
  */
 int misc_init_r(void)
 {
-	int reg;
-	u32 id[4];
+	unsigned int die_id[4] = { 0 };
 
 #ifdef CONFIG_PALMAS_POWER
 	palmas_init_settings();
 #endif
 
-	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);
+	omap_die_id(die_id);
+	usb_fake_mac_from_die_id(die_id);
 
 	return 0;
 }