From: Baocheng Su baocheng.su@siemens.com
The power control pin of pcie interface not only works for M.2 interface but also for miniPCIE, so promote this logic to all variants to workaround the module hang issue.
Signed-off-by: Baocheng Su baocheng.su@siemens.com Signed-off-by: Jan Kiszka jan.kiszka@siemens.com --- board/siemens/iot2050/board.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/board/siemens/iot2050/board.c b/board/siemens/iot2050/board.c index e5c7ce58b06..85cb999f17f 100644 --- a/board/siemens/iot2050/board.c +++ b/board/siemens/iot2050/board.c @@ -185,6 +185,12 @@ static void remove_mmc1_target(void) free(boot_targets); }
+static void enable_pcie_connector_power(void) +{ + set_pinvalue("gpio@601000_17", "P3V3_PCIE_CON_EN", 1); + udelay(4 * 100); +} + void set_board_info_env(void) { struct iot2050_info *info = IOT2050_INFO_DATA; @@ -288,10 +294,6 @@ static void m2_connector_setup(void) struct m2_config_pins config_pins; unsigned int n;
- /* enable M.2 connector power */ - set_pinvalue("gpio@601000_17", "P3V3_M2_EN", 1); - udelay(4 * 100); - if (m2_manual_config < CONNECTOR_MODE_INVALID) { mode_info = " [manual mode]"; connector_mode = m2_manual_config; @@ -429,6 +431,8 @@ int board_late_init(void) /* change CTRL_MMR register to let serdes0 not output USB3.0 signals. */ writel(0x3, SERDES0_LANE_SELECT);
+ enable_pcie_connector_power(); + if (board_is_m2()) m2_connector_setup();