I recently installed OpenBSD to a PandaBoard (the original, not
PandaBoard ES) and noticed that the clock was very quickly getting
behind, with ntpd unable to cope.
The following extremely crude diff fixes it, but probably at the expense
of breaking other omap systems. Is there a better way to figure out what
is the real system clock frequency?
Index: sys/arch/armv7/omap/omapid.c
===================================================================
RCS file: /OpenBSD/src/sys/arch/armv7/omap/omapid.c,v
retrieving revision 1.5
diff -u -p -u -p -r1.5 omapid.c
--- sys/arch/armv7/omap/omapid.c 24 Oct 2021 17:52:27 -0000 1.5
+++ sys/arch/armv7/omap/omapid.c 20 Sep 2022 13:54:01 -0000
@@ -83,9 +83,12 @@ omapid_attach(struct device *parent, str
rev = bus_space_read_4(sc->sc_iot, sc->sc_ioh, O4_ID_CODE);
switch ((rev >> 12) & 0xffff) {
case 0xB852:
- case 0xB95C:
board = "omap4430";
newclockrate = 400 * 1000 * 1000;
+ break;
+ case 0xB95C:
+ board = "omap4430";
+ newclockrate = 300 * 1000 * 1000;
break;
case 0xB94E:
board = "omap4460";
OpenBSD 7.2 (GENERIC) #11: Tue Sep 20 13:18:51 GMT 2022
[email protected]:/usr/src/sys/arch/armv7/compile/GENERIC
real mem = 1021243392 (973MB)
avail mem = 992374784 (946MB)
random: boothowto does not indicate good seed
mainbus0 at root: TI OMAP4 PandaBoard
cpu0 at mainbus0 mpidr 0: ARM Cortex-A9 r1p2
cpu0: 32KB 32b/line 4-way L1 VIPT I-cache, 32KB 32b/line 4-way L1 D-cache
cortex0 at mainbus0
amptimer0 at cortex0: 396000 kHz
armliicc0 at cortex0: rtl 4 waymask: 0x0000000f
omap0 at mainbus0
omapid0 at omap0: omap4430
amptimer0: adjusting clock: new rate 300000 kHz
prcm0 at omap0 rev 0.0
ampintc0 at mainbus0 nirq 160, ncpu 2: "interrupt-controller"
omwugen0 at mainbus0
simplebus0 at mainbus0: "ocp"
omsysc0 at simplebus0: "target-module"
omsysc1 at simplebus0: "target-module"
omsysc2 at simplebus0: "target-module"
omsysc3 at simplebus0: "target-module"
omsysc4 at simplebus0: "target-module"
omsysc5 at simplebus0: "target-module"
omsysc6 at simplebus0: "target-module"
simplebus1 at simplebus0: "l4"
simplebus2 at simplebus1: "cm1"
omcm0 at simplebus2: "mpuss_cm"
omclock0 at omcm0: "clk"
omcm1 at simplebus2: "tesla_cm"
omclock1 at omcm1: "clk"
omcm2 at simplebus2: "abe_cm"
omclock2 at omcm2: "clk"
simplebus3 at simplebus1: "cm2"
omcm3 at simplebus3: "l4_ao_cm"
omclock3 at omcm3: "clk"
omcm4 at simplebus3: "l3_1_cm"
omclock4 at omcm4: "clk"
omcm5 at simplebus3: "l3_2_cm"
omclock5 at omcm5: "clk"
omcm6 at simplebus3: "ducati_cm"
omclock6 at omcm6: "clk"
omcm7 at simplebus3: "l3_dma_cm"
omclock7 at omcm7: "clk"
omcm8 at simplebus3: "l3_emif_cm"
omclock8 at omcm8: "clk"
omcm9 at simplebus3: "d2d_cm"
omclock9 at omcm9: "clk"
omcm10 at simplebus3: "l4_cfg_cm"
omclock10 at omcm10: "clk"
omcm11 at simplebus3: "l3_instr_cm"
omclock11 at omcm11: "clk"
omcm12 at simplebus3: "ivahd_cm"
omclock12 at omcm12: "clk"
omcm13 at simplebus3: "iss_cm"
omclock13 at omcm13: "clk"
omcm14 at simplebus3: "l3_dss_cm"
omclock14 at omcm14: "clk"
omcm15 at simplebus3: "l3_gfx_cm"
omclock15 at omcm15: "clk"
omcm16 at simplebus3: "l3_init_cm"
omclock16 at omcm16: "clk"
omcm17 at simplebus3: "l4_per_cm"
omclock17 at omcm17: "clk"
simplebus4 at simplebus1: "scm"
syscon0 at simplebus4: "scm_conf"
simplebus5 at simplebus1: "scm"
syscon1 at simplebus5: "omap4_padconf_global"
pinctrl0 at simplebus5
simplebus6 at simplebus1: "l4"
"counter" at simplebus6 not configured
"prm" at simplebus6 not configured
"scrm" at simplebus6 not configured
"scm" at simplebus6 not configured
simplebus7 at simplebus6: "padconf"
pinctrl1 at simplebus7
"ocmcram" at simplebus0 not configured
"dma-controller" at simplebus0 not configured
omgpio0 at simplebus0: rev 0.1
gpio0 at omgpio0: 32 pins
omgpio1 at simplebus0: rev 0.1
gpio1 at omgpio1: 32 pins
omgpio2 at simplebus0: rev 0.1
gpio2 at omgpio2: 32 pins
omgpio3 at simplebus0: rev 0.1
gpio3 at omgpio3: 32 pins
omgpio4 at simplebus0: rev 0.1
gpio4 at omgpio4: 32 pins
omgpio5 at simplebus0: rev 0.1
gpio5 at omgpio5: 32 pins
"gpmc" at simplebus0 not configured
com0 at simplebus0: ti16750, 64 byte fifo
com0: probed fifo depth: 0 bytes
com1 at simplebus0: ti16750, 64 byte fifo
com1: probed fifo depth: 0 bytes
com2 at simplebus0: ti16750, 64 byte fifo
com2: console
com3 at simplebus0: ti16750, 64 byte fifo
com3: probed fifo depth: 0 bytes
omsysc7 at simplebus0: "target-module"
"smartreflex" at omsysc7 not configured
omsysc8 at simplebus0: "target-module"
"smartreflex" at omsysc8 not configured
omsysc9 at simplebus0: "target-module"
"smartreflex" at omsysc9 not configured
"spinlock" at simplebus0 not configured
tiiic0 at simplebus0 rev 0.10
iic0 at tiiic0
"ti,twl6030" at iic0 addr 0x48 not configured
"ti,twl6040" at iic0 addr 0x4b not configured
tiiic1 at simplebus0 rev 0.10
iic1 at tiiic1
tiiic2 at simplebus0 rev 0.10
iic2 at tiiic2
"ti,eeprom" at iic2 addr 0x50 not configured
tiiic3 at simplebus0 rev 0.10
iic3 at tiiic3
"spi" at simplebus0 not configured
"spi" at simplebus0 not configured
"1w" at simplebus0 not configured
"spi" at simplebus0 not configured
"spi" at simplebus0 not configured
ommmc0 at simplebus0
sdmmc0 at ommmc0: 8-bit
ommmc1 at simplebus0
sdmmc1 at ommmc1: 1-bit
"hsi" at simplebus0 not configured
"mmu" at simplebus0 not configured
"mmu" at simplebus0 not configured
omdog0 at simplebus0 rev 0.0
omdog1 at simplebus0 rev 0.0
"mcpdm" at simplebus0 not configured
"mcbsp" at simplebus0 not configured
"keypad" at simplebus0 not configured
"dmm" at simplebus0 not configured
"emif" at simplebus0 not configured
"emif" at simplebus0 not configured
"ocp2scp" at simplebus0 not configured
"mailbox" at simplebus0 not configured
"timer" at simplebus0 not configured
"timer" at simplebus0 not configured
"timer" at simplebus0 not configured
"timer" at simplebus0 not configured
"timer" at simplebus0 not configured
"timer" at simplebus0 not configured
"timer" at simplebus0 not configured
"timer" at simplebus0 not configured
"timer" at simplebus0 not configured
"timer" at simplebus0 not configured
"timer" at simplebus0 not configured
"usbhstll" at simplebus0 not configured
omehci0 at simplebus0
usb0 at omehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "TI OMAP EHCI root hub" rev 2.00/1.00
addr 1
"control-phy" at simplebus0 not configured
"control-phy" at simplebus0 not configured
"usb_otg_hs" at simplebus0 not configured
"aes" at simplebus0 not configured
"aes" at simplebus0 not configured
"des" at simplebus0 not configured
"sham" at simplebus0 not configured
"regulator-abb-mpu" at simplebus0 not configured
"dss" at simplebus0 not configured
"bandgap" at simplebus0 not configured
sdmmc1: can't supply clock
sdmmc1: can't enable card
scsibus0 at sdmmc0: 2 targets, initiator 0
sd0 at scsibus0 targ 1 lun 0: <SD/MMC, SU08G, 0080> removable
sd0: 7580MB, 512 bytes/sector, 15523840 sectors
uhub1 at uhub0 port 1 configuration 1 interface 0 "Standard Microsystems
product 0x9514" rev 2.00/1.00 addr 2
smsc0 at uhub1 port 1 configuration 1 interface 0 "Standard Microsystems
SMSC9512/14" rev 2.00/1.00 addr 3
smsc0: address 02:04:01:eb:19:20
ukphy0 at smsc0 phy 1: Generic IEEE 802.3u media interface, rev. 3: OUI
0x0001f0, model 0x000c
umass0 at uhub1 port 3 configuration 1 interface 0 "Generic Externa" rev
2.10/0.56 addr 4
umass0: using SCSI over Bulk-Only
scsibus1 at umass0: 2 targets, initiator 0
sd1 at scsibus1 targ 1 lun 0: <Generic, Externa, 0056>
serial.88887777222222220138
sd1: 228936MB, 512 bytes/sector, 468862127 sectors
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
bootfile: sd0a:/bsd
boot device: sd0
root device (default sd0a): sd1a
swap device (default sd1b):
root on sd1a swap on sd1b dump on sd1b
WARNING: CHECK AND RESET THE DATE!
