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authorBaruch Siach2018-06-07 12:38:11 +0300
committerHeiko Schocher2018-06-07 14:20:09 +0200
commitd78ecc733988d07a87c97f7f1c19171c437a8712 (patch)
tree6d7799a1733af236e4d74c85f954ba3a944a1a1e /board
parent173ec3519118767f50f335ade987cf3e6a94759f (diff)
mvebu: turris_omnia: add note about i2c slave disable
Code that disables the i2c slave is now in the mvtwsi i2c driver. Platform must enable DM_I2C to use that code. Add a comment in the code as a reminder for the planned DM_I2C migration of Turris Omnia. Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Diffstat (limited to 'board')
-rw-r--r--board/CZ.NIC/turris_omnia/turris_omnia.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c b/board/CZ.NIC/turris_omnia/turris_omnia.c
index da663cf1bb0..160d30cd795 100644
--- a/board/CZ.NIC/turris_omnia/turris_omnia.c
+++ b/board/CZ.NIC/turris_omnia/turris_omnia.c
@@ -321,7 +321,11 @@ int board_early_init_f(void)
writel(OMNIA_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
writel(OMNIA_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
- /* Disable I2C debug mode blocking 0x64 I2C address */
+ /*
+ * Disable I2C debug mode blocking 0x64 I2C address.
+ * Note: that would be redundant once Turris Omnia migrates to DM_I2C,
+ * because the mvtwsi driver includes equivalent code.
+ */
i2c_debug_reg = readl(MVEBU_TWSI_BASE + MVTWSI_ARMADA_DEBUG_REG);
i2c_debug_reg &= ~(1<<18);
writel(i2c_debug_reg, MVEBU_TWSI_BASE + MVTWSI_ARMADA_DEBUG_REG);