diff options
Diffstat (limited to 'board/ti/panda/panda.c')
| -rw-r--r-- | board/ti/panda/panda.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/board/ti/panda/panda.c b/board/ti/panda/panda.c index 9afed807b..e60a2e267 100644 --- a/board/ti/panda/panda.c +++ b/board/ti/panda/panda.c @@ -67,6 +67,25 @@ int misc_init_r(void) void set_muxconf_regs_non_essential(void) { + /* + * Enable USB phy ref clock before reconfiguring pins because + * the phy seems to get in a bad state otherwise. + */ +#define OMAP44XX_SCRM_BASE 0x4a30a000 +#define OMAP44XX_SCRM_ALTCLKSRC (OMAP44XX_SCRM_BASE + 0x110) +#define OMAP44XX_SCRM_AUXCLK1 (OMAP44XX_SCRM_BASE + 0x314) +#define OMAP44XX_SCRM_AUXCLK3 (OMAP44XX_SCRM_BASE + 0x31c) + /* enable software ioreq */ + sr32(OMAP44XX_SCRM_AUXCLK3, 8, 1, 0x1); + /* set for sys_clk (38.4MHz) */ + sr32(OMAP44XX_SCRM_AUXCLK3, 1, 2, 0x0); + /* set divisor to 2 */ + sr32(OMAP44XX_SCRM_AUXCLK3, 16, 4, 0x1); + /* set the clock source to active */ + sr32(OMAP44XX_SCRM_ALTCLKSRC, 0, 1, 0x1); + /* enable clocks */ + sr32(OMAP44XX_SCRM_ALTCLKSRC, 2, 2, 0x3); + do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_non_essential, sizeof(core_padconf_array_non_essential) / sizeof(struct pad_conf_entry)); |