@@ -77,3 +77,12 @@ __weak int psu_init(void)
*/
return -1;
}
+
+__weak unsigned long psu_post_config_data(void)
+{
+ /*
+ * This function is overridden by the one in
+ * board/xilinx/zynqmp/(platform)/psu_init_gpl.c, if it exists.
+ */
+ return 0;
+}
@@ -60,6 +60,7 @@ void spl_board_init(void)
preloader_console_init();
ps_mode_reset(MODE_RESET);
board_init();
+ psu_post_config_data();
}
#endif
@@ -409,7 +409,6 @@ static unsigned long psu_mio_init_data(void)
psu_mask_write(0xFF18007C, 0x000000FEU, 0x00000000U);
psu_mask_write(0xFF180080, 0x000000FEU, 0x00000008U);
psu_mask_write(0xFF180084, 0x000000FEU, 0x00000008U);
- psu_mask_write(0xFF180088, 0x000000FEU, 0x00000008U);
psu_mask_write(0xFF18008C, 0x000000FEU, 0x00000000U);
psu_mask_write(0xFF180090, 0x000000FEU, 0x00000000U);
psu_mask_write(0xFF180094, 0x000000FEU, 0x00000000U);
@@ -990,3 +989,9 @@ int psu_init(void)
return 1;
return 0;
}
+
+unsigned long psu_post_config_data(void)
+{
+ psu_mask_write(0xFF180088, 0x000000FEU, 0x00000008U);
+ return 0;
+}
MIO34 is connected to POWER_KILL signal. When MIO configuration is done in psu_init() and this pin is assigned to PMU but PMU configuration is not loaded yet. PMU gpio output is high that means board is powered off immediately. The patch is fixing this sequence that MIO34 stays assing to ps gpio IP. PMU config is loaded in SPL and then pin assigned to PMU through psu_post_config_data(). Signed-off-by: Michal Simek <michal.simek@xilinx.com> --- arch/arm/mach-zynqmp/psu_spl_init.c | 9 +++++++++ arch/arm/mach-zynqmp/spl.c | 1 + board/xilinx/zynqmp/zynqmp-zcu100-revC/psu_init_gpl.c | 7 ++++++- 3 files changed, 16 insertions(+), 1 deletion(-)