[U-Boot] i.MX28 u-boot SPL fail

[Marco Cavallini]

2015-02-21 15:00 GMT+01:00 Fabio Estevam <festevam at gmail.com>:
> Hi Marco,
>
> [Please keep the list on Cc.]
>
>
> On Sat, Feb 21, 2015 at 11:13 AM, Marco Cavallini
> <cavallini.koan at gmail.com> wrote:
>
>> Hi Fabio,
>> I moved to u-boot GIT master today (21 Feb 2015)
>> I set up my DDR settings, defined the following:
>> #define CONFIG_SPL_SERIAL_SUPPORT
>> #define CONFIG_SYS_MXS_VDD5V_ONLY
>> #define DEBUG
>>
>> This is the output log which hangs with "Undefined Ins"
>> What is missing?
>>
>>
>>
>> SPL: Serial Console Initialised
>> SPL: Initialising Power Block
>> SPL: Switching CPU clock to 24MHz XTAL
>> SPL: Setting auto-restart bit
>> SPL: Setting VDDD 25mV below DC-DC converters
>> SPL: Setting VDDA 25mV below DC-DC converters
>> SPL: Setting VDDIO 25mV below DC-DC converters
>> SPL: Starting 5V input detection comparator
>> SPL: Starting battery voltage measurement logic
>> SPL: Initialisating LRADC
>> SPL: Enabling LRADC battery measurement
>> SPL: LRADC channel 7 is present - configuring
>> SPL: LRADC channel 7 configuration complete
>> SPL: Configuring power source
>> SPL: Pre-Configuring power block
>> SPL: Battery Voltage = 752mV
>> SPL: Battery Voltage = 752mV
>> SPL: Battery Voltage = 4192mV
>> SPL: Battery Voltage too high
>> SPL: Configuring power block to boot from 5V input
>> SPL: 5V VDD good
>> SPL: Booting from 5V supply
>> SPL: Powering up 4P2 regulator
>> SPL: Configuring common 4P2 regulator params
>> SPL: Enabling 4P2 regulator
>> SPL: Charging 4P2 capacitor
>> SPL: Disabling 4P2 DC-DC Input
>> SPL: Setting 4P2 brownout level
>> SPL: Battery Voltage = 0mV
>> SPL: Switching DC-DC converters to 4P2
>> SPL: Enabling 4P2 DC-DC Input
>> SPL: 4P2 regulator powered-up
>> SPL: Switching CPU core clock source to PLL
>> SPL: Initialising battery brown-out level to 3.0V
>> SPL: Switching VDDD to DC-DC converters
>> SPL: Enabling output rail protection
>> SPL: Setting VDDIO to 3V3 (brownout @ 3v15)
>> SPL: Setting VDDD to 1V5 (brownout @ 1v0)
>> SPL: Initialising FRAC0
>> SPL: FRAC0 Initialised
>> SPL: Configuring VDDA
>> SPL: Initialising mx28 SDRAM Controller
>> SPL: Setting mx28 board specific SDRAM parameters
>> SPL: Applying SDRAM parameters
>> SPL: Setting CPU and HBUS clock frequencies
>> LLC
>> Undefined Ins
>
> Can you share your patch? What are the "Setting mx28 board specific
> SDRAM parameters" you did?
>
> Also, how do you power your board? Are you using battery?


Hi Fabio,
please apologize if I inadvertently sent the reply only to you.

I solved the problem setting in mx28_mem_init() the mDDR PINCTRLs

/* Set mDDR2 mode */
writel(PINCTRL_EMI_DS_CTRL_DDR_MODE_mDDR,
&pinctrl_regs->hw_pinctrl_emi_ds_ctrl_set);

writel( PINCTRL_EMI_DS_CTRL_ADDRESS_MA_MASK |
PINCTRL_EMI_DS_CTRL_CONTROL_MA_MASK |
PINCTRL_EMI_DS_CTRL_DUALPAD_MA_MASK |
PINCTRL_EMI_DS_CTRL_SLICE3_MA_MASK |
PINCTRL_EMI_DS_CTRL_SLICE2_MA_MASK |
PINCTRL_EMI_DS_CTRL_SLICE1_MA_MASK |
PINCTRL_EMI_DS_CTRL_SLICE0_MA_MASK,
&pinctrl_regs->hw_pinctrl_emi_ds_ctrl); /* 0x1b80 */

// Configure Bank-3 Pins 0-15 as EMI pins
writel(0, &pinctrl_regs->hw_pinctrl_muxsel10); /* 0x1a0 */
writel(0, &pinctrl_regs->hw_pinctrl_muxsel11); /* 0x1b0 */
writel(0, &pinctrl_regs->hw_pinctrl_muxsel12); /* 0x1c0 */
writel(0, &pinctrl_regs->hw_pinctrl_muxsel13); /* 0x1d0 */


This is my boot log

SPL: Serial Console Initialised
SPL: Initialising Power Block
SPL: Switching CPU clock to 24MHz XTAL
SPL: Setting auto-restart bit
SPL: Setting VDDD 25mV below DC-DC converters
SPL: Setting VDDA 25mV below DC-DC converters
SPL: Setting VDDIO 25mV below DC-DC converters
SPL: Starting 5V input detection comparator
SPL: Starting battery voltage measurement logic
SPL: Initialisating LRADC
SPL: Enabling LRADC battery measurement
SPL: LRADC channel 7 is present - configuring
SPL: LRADC channel 7 configuration complete
SPL: Configuring power source
SPL: Pre-Configuring power block
SPL: Battery Voltage = 976mV
SPL: Battery Voltage = 976mV
SPL: Battery Voltage = 4192mV
SPL: Battery Voltage too high
SPL: Configuring power block to boot from 5V input
SPL: 5V VDD good
SPL: Booting from 5V supply
SPL: Powering up 4P2 regulator
SPL: Configuring common 4P2 regulator params
SPL: Enabling 4P2 regulator
SPL: Charging 4P2 capacitor
SPL: Disabling 4P2 DC-DC Input
SPL: Setting 4P2 brownout level
SPL: Battery Voltage = 0mV
SPL: Switching DC-DC converters to 4P2
SPL: Enabling 4P2 DC-DC Input
SPL: 4P2 regulator powered-up
SPL: Switching CPU core clock source to PLL
SPL: Initialising battery brown-out level to 3.0V
SPL: Switching VDDD to DC-DC converters
SPL: Enabling output rail protection
SPL: Setting VDDIO to 3V3 (brownout @ 3v15)
SPL: Setting VDDD to 1V5 (brownout @ 1v0)
SPL: Initialising FRAC0
SPL: FRAC0 Initialised
SPL: Configuring VDDA
SPL: Initialising mx28 SDRAM Controller
SPL: Setting mx28 board specific SDRAM parameters
SPL: Applying SDRAM parameters
SPL: Setting CPU and HBUS clock frequencies
SPL: mxs_mem_init() completed
SPL: mxs_mem_get_size() completed
SPL: mxs_power_wait_pswitch() completed
LLCinitcall: 40021d5c


U-Boot 2015.04-rc2-00015-g1320112-dirty (Feb 21 2015 - 16:07:30)

initcall: 40005e80
U-Boot code: 40002000 -> 40034F98  BSS: -> 4003F524
initcall: 40002a00
CPU:   Freescale i.MX28 rev1.2 at 454 MHz
BOOT:  SSP SD/MMC #0, 3V3
...


Regards,
--
Marco Cavallini | KOAN sas | Bergamo - Italia
 embedded and real-time software engineering
Phone:+39-035-255.235 - Fax:+39-178-22.39.748
      http://www.KoanSoftware.com