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ARM: DRA7: Set serial number environment variable

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This patch populates serial number environment variable from
die_id_0 and die_id_1 register values for DRA7xx boards.

The function is added in omap common code so that this can be re-used.

Serial# environment variable will be useful to show correct
information in "fastboot devices" commands.

Ref:
http://git.omapzoom.org/?p=repo/u-boot.git;a=commit;h=a6bcaaf67f6e4bcd97808f53d0ceb4b0c04d583c

Signed-off-by: Angela Stegmaier <angelabaker@ti.com>
Signed-off-by: Dileep Katta <dileep.katta@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Dileep Katta 2015-03-25 04:04:51 +05:30 committed by Tom Rini
parent be17d396ff
commit f12467d1a5
4 changed files with 28 additions and 0 deletions
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13
arch/arm/cpu/armv7/omap-common/utils.c
View file

@ -60,3 +60,16 @@ void __weak usb_fake_mac_from_die_id(u32 *id)
eth_setenv_enetaddr("usbethaddr", device_mac);
}
}
void __weak usb_set_serial_num_from_die_id(u32 *id)
{
char serialno[72];
uint32_t serialno_lo, serialno_hi;
if (!getenv("serial#")) {
serialno_hi = id[0];
serialno_lo = id[1];
sprintf(serialno, "%08x%08x", serialno_hi, serialno_lo);
setenv("serial#", serialno);
}
}

4
arch/arm/cpu/armv7/omap5/prcm-regs.c
View file

@ -440,6 +440,10 @@ struct omap_sys_ctrl_regs const dra7xx_ctrl = {
.control_emif1_sdram_config_ext = 0x4AE0C144,
.control_emif2_sdram_config_ext = 0x4AE0C148,
.control_wkup_ldovbb_mpu_voltage_ctrl = 0x4AE0C158,
.control_std_fuse_die_id_0 = 0x4AE0C200,
.control_std_fuse_die_id_1 = 0x4AE0C208,
.control_std_fuse_die_id_2 = 0x4AE0C20C,
.control_std_fuse_die_id_3 = 0x4AE0C210,
.control_padconf_mode = 0x4AE0C5A0,
.control_xtal_oscillator = 0x4AE0C5A4,
.control_i2c_2 = 0x4AE0C5A8,

5
arch/arm/include/asm/omap_common.h
View file

@ -362,6 +362,10 @@ struct omap_sys_ctrl_regs {
u32 control_core_control_io1;
u32 control_core_control_io2;
u32 control_id_code;
u32 control_std_fuse_die_id_0;
u32 control_std_fuse_die_id_1;
u32 control_std_fuse_die_id_2;
u32 control_std_fuse_die_id_3;
u32 control_std_fuse_opp_bgap;
u32 control_ldosram_iva_voltage_ctrl;
u32 control_ldosram_mpu_voltage_ctrl;
@ -578,6 +582,7 @@ void abb_setup(u32 fuse, u32 ldovbb, u32 setup, u32 control,
s8 abb_setup_ldovbb(u32 fuse, u32 ldovbb);
void usb_fake_mac_from_die_id(u32 *id);
void usb_set_serial_num_from_die_id(u32 *id);
void omap_smc1(u32 service, u32 val);

6
board/ti/dra7xx/evm.c
View file

@ -93,10 +93,16 @@ int board_init(void)
int board_late_init(void)
{
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
u32 id[4];
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);
#endif
return 0;
}