[U-Boot] [PATCH v2 11/12] arm64: a37xx: Disable DB configurations on ESPRESSOBin board

[kostap at marvell.com]

From: Konstantin Porotchkin <kostap at marvell.com>

Bypass XHCI and AHCi board configuration flow on ESPRESSOBin
community board.
The community board does not have i2c expander and USB VBUS
is always on, so the scan for AHCi and USB devices can be
faster without unneded configurations.

Signed-off-by: Konstantin Porotchkin <kostap at marvell.com>
Cc: Stefan Roese <sr at denx.de>
Cc: Igal Liberman <igall at marvell.com>
Cc: Nadav Haklai <nadavh at marvell.com>
---
Changes for v2:
- Check if the mashine is NOT compatible with DB
  instead of checking that if machine is compatible with ESPRESSOBin:wq

 board/Marvell/mvebu_armada-37xx/board.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/board/Marvell/mvebu_armada-37xx/board.c b/board/Marvell/mvebu_armada-37xx/board.c
index b9878bf..8dc1f46 100644
--- a/board/Marvell/mvebu_armada-37xx/board.c
+++ b/board/Marvell/mvebu_armada-37xx/board.c
@@ -21,6 +21,7 @@ DECLARE_GLOBAL_DATA_PTR;
 #define I2C_IO_REG_0_SATA_OFF	2
 #define I2C_IO_REG_0_USB_H_OFF	1
 
+/* The pin control values are the same for DB and Espressobin */
 #define PINCTRL_NB_REG_VALUE	0x000173fa
 #define PINCTRL_SB_REG_VALUE	0x00007a23
 
@@ -90,6 +91,10 @@ int board_ahci_enable(void)
 	int ret;
 	u8 buf[8];
 
+	/* Only DB requres this configuration */
+	if (!of_machine_is_compatible("marvell,armada-3720-db"))
+		return 0;
+
 	/* Configure IO exander PCA9555: 7bit address 0x22 */
 	ret = i2c_get_chip_for_busnum(0, I2C_IO_EXP_ADDR, 1, &dev);
 	if (ret) {
@@ -124,6 +129,10 @@ int board_xhci_enable(void)
 	int ret;
 	u8 buf[8];
 
+	/* Only DB requres this configuration */
+	if (!of_machine_is_compatible("marvell,armada-3720-db"))
+		return 0;
+
 	/* Configure IO exander PCA9555: 7bit address 0x22 */
 	ret = i2c_get_chip_for_busnum(0, I2C_IO_EXP_ADDR, 1, &dev);
 	if (ret) {
-- 
2.7.4