DM3730/Beagle board XM Warm reset issue

[Javi Martin]

Hi,
he problem happens inside the function "prcm_init()". The code gets
stuck in the indicated line (572) waiting for DPLL4 ( ST_PERIPH_CLK)
to be locked, but that won't happen.

The problem occurs after a warm reset (software) and not after a POR
(cold reset hardware).

I am using commit 04b1732220078d47c18a84cbafc52e45db71f13d

---
board/omap3530beagle/omap3530beagle.c: line 572

if (beagle_revision() == REVISION_XM) {
sr32(CM_CLKSEL3_PLL, 0, 5, CORE_DPLL_PARAM_M2); /* set M2
*/
sr32(CM_CLKSEL2_PLL, 8, 11, CORE_DPLL_PARAM_M); /* set m */
sr32(CM_CLKSEL2_PLL, 0, 7, CORE_DPLL_PARAM_N); /* set n */
} else {
sr32(CM_CLKSEL3_PLL, 0, 5, dpll_param_p->m2); /* set M2 */
sr32(CM_CLKSEL2_PLL, 8, 11, dpll_param_p->m); /* set m */
sr32(CM_CLKSEL2_PLL, 0, 7, dpll_param_p->n); /* set n */
}

sr32(CM_CLKEN_PLL, 20, 4, dpll_param_p->fsel); /* FREQSEL */
sr32(CM_CLKEN_PLL, 16, 3, PLL_LOCK); /* lock mode */
wait_on_value(BIT1, 2, CM_IDLEST_CKGEN, LDELAY); <--- here it gets
stuck
---