[U-Boot] Issues coupling am335x with VSC8601 PHY

[Alex]

On 11/05/2016 12:07 AM, Alex wrote:
> Hi,
>
> I'm trying to enable ethernet on a custom board with an am335x soc, and
> a VSC8601 connected through RGMII. The plan is to use u-boot as a first
> stage loader to load a proprietary application (called "the app"). The
> app already has its own ethernet stack and drivers, and can successfully
> do network talk.

Okay, we solved it -- sort of. I learned the hard way that the 
EEPROM-based config mechanism in SPL chose to not configure anything -- 
no clocks, no PMIC. Once we got that hacked out[1], the ethernet started 
graciously working.

There isn't an EEPROM on these boards. Other than hacking a bunch of if 
statements, is there another mechanism to get the proper DDR, pinmux, 
PMIC, and clock configuration in SPL

Alex

[1]
diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c
index fc1353a..159def3 100644
--- a/board/ti/am335x/board.c
+++ b/board/ti/am335x/board.c
@@ -254,7 +254,7 @@ void am33xx_spl_board_init(void)
         /* Get the frequency */
         dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);

-       if (board_is_bone() || board_is_bone_lt()) {
+       if (1 || board_is_bone() || board_is_bone_lt()) {
                 /* BeagleBone PMIC Code */
                 int usb_cur_lim;

@@ -262,7 +262,7 @@ void am33xx_spl_board_init(void)
                  * Only perform PMIC configurations if board rev > A1
                  * on Beaglebone White
                  */
-               if (board_is_bone() && !strncmp(board_ti_get_rev(), 
"00A1", 4))
+               if (0 &&( board_is_bone() && 
!strncmp(board_ti_get_rev(), "00A1", 4)))
                         return;

                 if (i2c_probe(TPS65217_CHIP_PM))
@@ -328,7 +328,7 @@ void am33xx_spl_board_init(void)
                  * Set LDO3, LDO4 output voltage to 3.3V for Beaglebone.
                  * Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black.
                  */
-               if (board_is_bone()) {
+               if (1 || board_is_bone()) {
                         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
                                                TPS65217_DEFLS1,
 
TPS65217_LDO_VOLTAGE_OUT_3_3,
diff --git a/board/ti/am335x/mux.c b/board/ti/am335x/mux.c
index 27979bd..e758429 100644
--- a/board/ti/am335x/mux.c
+++ b/board/ti/am335x/mux.c
@@ -352,7 +352,7 @@ void enable_board_pin_mux(void)
  #else
                 configure_module_pin_mux(mmc1_pin_mux);
  #endif
-       } else if (board_is_gp_evm()) {
+       } else if (1 || board_is_gp_evm()) {
                 /* General Purpose EVM */
                 unsigned short profile = detect_daughter_board_profile();
                 configure_module_pin_mux(rgmii1_pin_mux);