TDA4VM: tda4 uboot hang()

Hi keerthy，

I have tryed to modify the code：

--- a/drivers/ram/k3-ddrss/k3-ddrss.c
+++ b/drivers/ram/k3-ddrss/k3-ddrss.c
@@ -134,8 +134,7 @@ static void k3_lpddr4_freq_update(void)
if (wait_for_bit_le32(ddrss->ddrss_ctrl_mmr +
CTRLMMR_DDR4_FSP_CLKCHNG_REQ_OFFS, 0x80,
false, 10, false)) {
- printf("Timeout during frequency handshake\n");
- hang();
+ panic("Timeout during frequency handshake\n");
}
writel(0x0, ddrss->ddrss_ctrl_mmr +
CTRLMMR_DDR4_FSP_CLKCHNG_ACK_OFFS);

but test failed：

### ERROR ### Please RESET the board ###
resetting ...
k3-secure-proxy secproxy@28380000: k3_sec_proxy_send: Thread8 verification failed. ret = -61
ti_sci dmsc@44083000: ti_sci_do_xfer: Message sending failed. ret = -61
ti_sci dmsc@44083000: Mbox send fail -61
ti-sci-sysreset sysreset-controller: ti_sci_sysreset_request: reboot_device failed (-61)
k3-secure-proxy secproxy@28380000: k3_sec_proxy_send: Thread8 verification failed. ret = -61
ti_sci dmsc@44083000: ti_sci_do_xfer: Message sending failed. ret = -61
ti_sci dmsc@44083000: Mbox send fail -61
ti-sci-sysreset sysreset-controller: ti_sci_sysreset_request: reboot_device failed (-61)
k3-secure-proxy secproxy@28380000: k3_sec_proxy_send: Thread8 verification failed. ret = -61
ti_sci dmsc@44083000: ti_sci_do_xfer: Message sending failed. ret = -61
ti_sci dmsc@44083000: Mbox send fail -61
ti-sci-sysreset sysreset-controller: ti_sci_sysreset_request: reboot_device failed (-61)
System reset not supported on this platform

i dont know wheather could use do_reset function,thanks

but in uboot the "reset" cmd is ok

Dear Keerthy,

    I think Ruijie has used it. But she does not know whether she used it correctly.

sun ruijie said:

do_reset(NULL, 0, 0, NULL);

Dear Ruijie,

     Is my understand right? Also, could you show the whole code if possible ? Did you include the right path?

BR

Sikai

Hi Sikai，

i have try the do_reset function and also the panic function, both print the following the error:

### ERROR ### Please RESET the board ###
resetting ...
k3-secure-proxy secproxy@28380000: k3_sec_proxy_send: Thread8 verification failed. ret = -61
ti_sci dmsc@44083000: ti_sci_do_xfer: Message sending failed. ret = -61
ti_sci dmsc@44083000: Mbox send fail -61
ti-sci-sysreset sysreset-controller: ti_sci_sysreset_request: reboot_device failed (-61)
k3-secure-proxy secproxy@28380000: k3_sec_proxy_send: Thread8 verification failed. ret = -61
ti_sci dmsc@44083000: ti_sci_do_xfer: Message sending failed. ret = -61
ti_sci dmsc@44083000: Mbox send fail -61
ti-sci-sysreset sysreset-controller: ti_sci_sysreset_request: reboot_device failed (-61)
k3-secure-proxy secproxy@28380000: k3_sec_proxy_send: Thread8 verification failed. ret = -61
ti_sci dmsc@44083000: ti_sci_do_xfer: Message sending failed. ret = -61
ti_sci dmsc@44083000: Mbox send fail -61
ti-sci-sysreset sysreset-controller: ti_sci_sysreset_request: reboot_device failed (-61)
System reset not supported on this platform

so i want to know weather can use the do_reset function in tiboot3.bin, for example in :

--- a/drivers/ram/k3-ddrss/k3-ddrss.c
+++ b/drivers/ram/k3-ddrss/k3-ddrss.c
@@ -134,8 +134,7 @@ static void k3_lpddr4_freq_update(void)
if (wait_for_bit_le32(ddrss->ddrss_ctrl_mmr +
CTRLMMR_DDR4_FSP_CLKCHNG_REQ_OFFS, 0x80,
false, 10, false)) {
- printf("Timeout during frequency handshake\n");
- hang();
+ panic("Timeout during frequency handshake\n"); //or do_reset(NULL, 0, 0, NULL);
}
writel(0x0, ddrss->ddrss_ctrl_mmr +
CTRLMMR_DDR4_FSP_CLKCHNG_ACK_OFFS);

Hi,

I believe the issue is coming because the reset for MCU R5 is not implemented. The reset command from U-boot is working fine this is because reset needs support from ATF which is not loaded at R5 SPL stage. If you get to U-boot command prompt reset is working fine as the ATF is functional.

I believe this is for the issue: https://e2e.ti.com/support/processors-group/processors/f/791/t/1118692

I am able to get to 3733 MTS on my EVM. Are you failing to boot all the time at 3733 MTS?

- Keerthy

hi keerthy，

yes，it is for the issue:https://e2e.ti.com/support/processors-group/processors/f/791/t/1118692

in customer board, sometimes boot failed at 3733MTS, then hang in "Timeout during frequency handshake",

so we want to reset the board when failed not hang, are there other ways to reset in tiboot3.bin?

Thanks,

Ruijie Sun

Hi Ruijie,

Do you face the same issues at 4266 MTS which is the default speed? If yes then we need to check why DDR is failing at the first place.
Are you using custom board or TI board?

- Keerthy

hi Keerthy,

    the issue is found in custom board, the customer board don't hava used the 4277MTS mode,

    so we're dealing this problem and at the time we want to try the "reset"

    in tiboot3.bin, whether support other reset ways?

Thanks,

Ruijie Sun

Hi,

Nothing that is readily tried on SDK. Before that It is better to check with it fails at 3733 MTS at the first place. Any leads on that? Does it fail always?
Can you share the details?

- Keerthy