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[U-Boot,10/10] arm64: a3720: Disable DB configurations on ESPRESSOBin board

Message ID 1486993091-15058-11-git-send-email-kostap@marvell.com
State Superseded
Delegated to: Stefan Roese
Headers show

Commit Message

Kostya Porotchkin Feb. 13, 2017, 1:38 p.m. UTC 
From: Konstantin Porotchkin <kostap@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.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Igal Liberman <igall@marvell.com>
---
 board/Marvell/mvebu_db-88f3720/board.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/board/Marvell/mvebu_db-88f3720/board.c b/board/Marvell/mvebu_db-88f3720/board.c
index 45098ce..029ca6d 100644
--- a/board/Marvell/mvebu_db-88f3720/board.c
+++ b/board/Marvell/mvebu_db-88f3720/board.c
@@ -66,6 +66,10 @@  int board_ahci_enable(void)
 	int ret;
 	u8 buf[8];
 
+	/* There is no IO expander on ESPRESSOBin boards */
+	if (of_machine_is_compatible("marvell,armada-3720-espressobin"))
+		return 0;
+
 	/* Configure IO exander PCA9555: 7bit address 0x22 */
 	ret = i2c_get_chip_for_busnum(0, I2C_IO_EXP_ADDR, 1, &dev);
 	if (ret) {
@@ -100,6 +104,10 @@  int board_xhci_enable(void)
 	int ret;
 	u8 buf[8];
 
+	/* There is no IO expander on ESPRESSOBin boards */
+	if (of_machine_is_compatible("marvell,armada-3720-espressobin"))
+		return 0;
+
 	/* Configure IO exander PCA9555: 7bit address 0x22 */
 	ret = i2c_get_chip_for_busnum(0, I2C_IO_EXP_ADDR, 1, &dev);
 	if (ret) {