[PATCH v2 2/2] ARM: dts: imx25-pinfunc: remove SION for pins with an UART handshaking input mode
Uwe Kleine-König
u.kleine-koenig at pengutronix.de
Wed Mar 9 11:44:34 PST 2016
With SION set the level on such a pin is reported to the UART. So for
example when the CS5 pin is configured for GPIO mode and the level
changes this triggers an RTS interrupt on uart5.
Adding some severity to this issue: The imx uart driver currently
doesn't handle correctly irqs for changes on RI and DCD which are
enabled automatically when the respective UART is driven in DTE mode
(that is, has the fsl,dte-mode property set in the device tree). This
results in a stuck machine because the irq isn't cleared and so stalls
the CPU.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
---
Changes since (implicit) v1, sent with
Message-Id: 1457435901-15886-2-git-send-email-u.kleine-koenig at pengutronix.de
- adapt on top of changed patch 1
arch/arm/boot/dts/imx25-pinfunc.h | 118 +++++++++++++++++++-------------------
1 file changed, 59 insertions(+), 59 deletions(-)
diff --git a/arch/arm/boot/dts/imx25-pinfunc.h b/arch/arm/boot/dts/imx25-pinfunc.h
index a050f0f2a57f..f96fa2df8f11 100644
--- a/arch/arm/boot/dts/imx25-pinfunc.h
+++ b/arch/arm/boot/dts/imx25-pinfunc.h
@@ -110,10 +110,10 @@
#define MX25_PAD_CS4__UART5_CTS 0x054 0x264 0x000 0x13 0x000
#define MX25_PAD_CS4__GPIO_3_20 0x054 0x264 0x000 0x15 0x000
-#define MX25_PAD_CS5__CS5 0x058 0x268 0x000 0x10 0x000
+#define MX25_PAD_CS5__CS5 0x058 0x268 0x000 0x00 0x000
#define MX25_PAD_CS5__NF_CE2 0x058 0x268 0x000 0x01 0x000
-#define MX25_PAD_CS5__UART5_RTS 0x058 0x268 0x574 0x13 0x000
-#define MX25_PAD_CS5__GPIO_3_21 0x058 0x268 0x000 0x15 0x000
+#define MX25_PAD_CS5__UART5_RTS 0x058 0x268 0x574 0x03 0x000
+#define MX25_PAD_CS5__GPIO_3_21 0x058 0x268 0x000 0x05 0x000
#define MX25_PAD_NF_CE0__NF_CE0 0x05c 0x26c 0x000 0x10 0x000
#define MX25_PAD_NF_CE0__GPIO_3_22 0x05c 0x26c 0x000 0x15 0x000
@@ -246,9 +246,9 @@
#define MX25_PAD_LD9__FEC_COL 0x0ec 0x2e4 0x504 0x15 0x001
#define MX25_PAD_LD9__SDHC2_CLK 0x0ec 0x2e4 0x4dc 0x06 0x000
-#define MX25_PAD_LD10__LD10 0x0f0 0x2e8 0x000 0x10 0x000
-#define MX25_PAD_LD10__UART4_RTS 0x0f0 0x2e8 0x56c 0x12 0x000
-#define MX25_PAD_LD10__FEC_RX_ERR 0x0f0 0x2e8 0x518 0x15 0x001
+#define MX25_PAD_LD10__LD10 0x0f0 0x2e8 0x000 0x00 0x000
+#define MX25_PAD_LD10__UART4_RTS 0x0f0 0x2e8 0x56c 0x02 0x000
+#define MX25_PAD_LD10__FEC_RX_ERR 0x0f0 0x2e8 0x518 0x05 0x001
#define MX25_PAD_LD11__LD11 0x0f4 0x2ec 0x000 0x10 0x000
#define MX25_PAD_LD11__UART4_CTS 0x0f4 0x2ec 0x000 0x12 0x000
@@ -306,11 +306,11 @@
#define MX25_PAD_CSI_D3__GPIO_1_28 0x124 0x31c 0x000 0x15 0x000
#define MX25_PAD_CSI_D3__CSPI3_MISO 0x124 0x31c 0x4b4 0x17 0x001
-#define MX25_PAD_CSI_D4__CSI_D4 0x128 0x320 0x000 0x10 0x000
-#define MX25_PAD_CSI_D4__UART5_RTS 0x128 0x320 0x574 0x11 0x001
+#define MX25_PAD_CSI_D4__CSI_D4 0x128 0x320 0x000 0x00 0x000
+#define MX25_PAD_CSI_D4__UART5_RTS 0x128 0x320 0x574 0x01 0x001
#define MX25_PAD_CSI_D4__SIM1_VEN0 0x128 0x320 0x000 0x04 0x000
-#define MX25_PAD_CSI_D4__GPIO_1_29 0x128 0x320 0x000 0x15 0x000
-#define MX25_PAD_CSI_D4__CSPI3_SCLK 0x128 0x320 0x000 0x17 0x000
+#define MX25_PAD_CSI_D4__GPIO_1_29 0x128 0x320 0x000 0x05 0x000
+#define MX25_PAD_CSI_D4__CSPI3_SCLK 0x128 0x320 0x000 0x07 0x000
#define MX25_PAD_CSI_D5__CSI_D5 0x12c 0x324 0x000 0x10 0x000
#define MX25_PAD_CSI_D5__UART5_CTS 0x12c 0x324 0x000 0x11 0x000
@@ -375,10 +375,10 @@
#define MX25_PAD_CSPI1_SS0__PWM2_PWMO 0x160 0x358 0x000 0x12 0x000
#define MX25_PAD_CSPI1_SS0__GPIO_1_16 0x160 0x358 0x000 0x15 0x000
-#define MX25_PAD_CSPI1_SS1__CSPI1_SS1 0x164 0x35c 0x000 0x10 0x000
-#define MX25_PAD_CSPI1_SS1__I2C3_DAT 0x164 0x35C 0x528 0x11 0x001
-#define MX25_PAD_CSPI1_SS1__UART3_RTS 0x164 0x35c 0x000 0x12 0x000
-#define MX25_PAD_CSPI1_SS1__GPIO_1_17 0x164 0x35c 0x000 0x15 0x000
+#define MX25_PAD_CSPI1_SS1__CSPI1_SS1 0x164 0x35c 0x000 0x00 0x000
+#define MX25_PAD_CSPI1_SS1__I2C3_DAT 0x164 0x35C 0x528 0x01 0x001
+#define MX25_PAD_CSPI1_SS1__UART3_RTS 0x164 0x35c 0x000 0x02 0x000
+#define MX25_PAD_CSPI1_SS1__GPIO_1_17 0x164 0x35c 0x000 0x05 0x000
#define MX25_PAD_CSPI1_SCLK__CSPI1_SCLK 0x168 0x360 0x000 0x10 0x000
#define MX25_PAD_CSPI1_SCLK__UART3_CTS 0x168 0x360 0x000 0x12 0x000
@@ -387,24 +387,24 @@
#define MX25_PAD_CSPI1_RDY__CSPI1_RDY 0x16c 0x364 0x000 0x10 0x000
#define MX25_PAD_CSPI1_RDY__GPIO_2_22 0x16c 0x364 0x000 0x15 0x000
-#define MX25_PAD_UART1_RXD__UART1_RXD 0x170 0x368 0x000 0x10 0x000
-#define MX25_PAD_UART1_RXD__UART2_DTR 0x170 0x368 0x000 0x13 0x000
-#define MX25_PAD_UART1_RXD__GPIO_4_22 0x170 0x368 0x000 0x15 0x000
+#define MX25_PAD_UART1_RXD__UART1_RXD 0x170 0x368 0x000 0x00 0x000
+#define MX25_PAD_UART1_RXD__UART2_DTR 0x170 0x368 0x000 0x03 0x000
+#define MX25_PAD_UART1_RXD__GPIO_4_22 0x170 0x368 0x000 0x05 0x000
-#define MX25_PAD_UART1_TXD__UART1_TXD 0x174 0x36c 0x000 0x10 0x000
-#define MX25_PAD_UART1_TXD__UART2_DSR 0x174 0x36c 0x000 0x13 0x000
-#define MX25_PAD_UART1_TXD__GPIO_4_23 0x174 0x36c 0x000 0x15 0x000
+#define MX25_PAD_UART1_TXD__UART1_TXD 0x174 0x36c 0x000 0x00 0x000
+#define MX25_PAD_UART1_TXD__UART2_DSR 0x174 0x36c 0x000 0x03 0x000
+#define MX25_PAD_UART1_TXD__GPIO_4_23 0x174 0x36c 0x000 0x05 0x000
-#define MX25_PAD_UART1_RTS__UART1_RTS 0x178 0x370 0x000 0x10 0x000
-#define MX25_PAD_UART1_RTS__CSI_D0 0x178 0x370 0x488 0x11 0x001
-#define MX25_PAD_UART1_RTS__CC3 0x178 0x370 0x000 0x12 0x000
-#define MX25_PAD_UART1_RTS__UART2_DCD 0x178 0x370 0x000 0x13 0x000
-#define MX25_PAD_UART1_RTS__GPIO_4_24 0x178 0x370 0x000 0x15 0x000
+#define MX25_PAD_UART1_RTS__UART1_RTS 0x178 0x370 0x000 0x00 0x000
+#define MX25_PAD_UART1_RTS__CSI_D0 0x178 0x370 0x488 0x01 0x001
+#define MX25_PAD_UART1_RTS__CC3 0x178 0x370 0x000 0x02 0x000
+#define MX25_PAD_UART1_RTS__UART2_DCD 0x178 0x370 0x000 0x03 0x000
+#define MX25_PAD_UART1_RTS__GPIO_4_24 0x178 0x370 0x000 0x05 0x000
-#define MX25_PAD_UART1_CTS__UART1_CTS 0x17c 0x374 0x000 0x10 0x000
-#define MX25_PAD_UART1_CTS__CSI_D1 0x17c 0x374 0x48c 0x11 0x001
-#define MX25_PAD_UART1_CTS__UART2_RI 0x17c 0x374 0x000 0x13 0x001
-#define MX25_PAD_UART1_CTS__GPIO_4_25 0x17c 0x374 0x000 0x15 0x000
+#define MX25_PAD_UART1_CTS__UART1_CTS 0x17c 0x374 0x000 0x00 0x000
+#define MX25_PAD_UART1_CTS__CSI_D1 0x17c 0x374 0x48c 0x01 0x001
+#define MX25_PAD_UART1_CTS__UART2_RI 0x17c 0x374 0x000 0x03 0x001
+#define MX25_PAD_UART1_CTS__GPIO_4_25 0x17c 0x374 0x000 0x05 0x000
#define MX25_PAD_UART2_RXD__UART2_RXD 0x180 0x378 0x000 0x10 0x000
#define MX25_PAD_UART2_RXD__GPIO_4_26 0x180 0x378 0x000 0x15 0x000
@@ -412,10 +412,10 @@
#define MX25_PAD_UART2_TXD__UART2_TXD 0x184 0x37c 0x000 0x10 0x000
#define MX25_PAD_UART2_TXD__GPIO_4_27 0x184 0x37c 0x000 0x15 0x000
-#define MX25_PAD_UART2_RTS__UART2_RTS 0x188 0x380 0x000 0x10 0x000
-#define MX25_PAD_UART2_RTS__FEC_COL 0x188 0x380 0x504 0x12 0x002
-#define MX25_PAD_UART2_RTS__CC1 0x188 0x380 0x000 0x13 0x000
-#define MX25_PAD_UART2_RTS__GPIO_4_28 0x188 0x380 0x000 0x15 0x000
+#define MX25_PAD_UART2_RTS__UART2_RTS 0x188 0x380 0x000 0x00 0x000
+#define MX25_PAD_UART2_RTS__FEC_COL 0x188 0x380 0x504 0x02 0x002
+#define MX25_PAD_UART2_RTS__CC1 0x188 0x380 0x000 0x03 0x000
+#define MX25_PAD_UART2_RTS__GPIO_4_28 0x188 0x380 0x000 0x05 0x000
#define MX25_PAD_UART2_CTS__UART2_CTS 0x18c 0x384 0x000 0x10 0x000
#define MX25_PAD_UART2_CTS__FEC_RX_ERR 0x18c 0x384 0x518 0x12 0x002
@@ -447,27 +447,27 @@
#define MX25_PAD_SD1_DATA3__FEC_CRS 0x1a4 0x39c 0x508 0x12 0x002
#define MX25_PAD_SD1_DATA3__GPIO_2_28 0x1a4 0x39c 0x000 0x15 0x000
-#define MX25_PAD_KPP_ROW0__KPP_ROW0 0x1a8 0x3a0 0x000 0x10 0x000
-#define MX25_PAD_KPP_ROW0__UART3_RXD 0x1a8 0x3a0 0x568 0x11 0x001
-#define MX25_PAD_KPP_ROW0__UART1_DTR 0x1a8 0x3a0 0x000 0x14 0x000
-#define MX25_PAD_KPP_ROW0__GPIO_2_29 0x1a8 0x3a0 0x000 0x15 0x000
+#define MX25_PAD_KPP_ROW0__KPP_ROW0 0x1a8 0x3a0 0x000 0x00 0x000
+#define MX25_PAD_KPP_ROW0__UART3_RXD 0x1a8 0x3a0 0x568 0x01 0x001
+#define MX25_PAD_KPP_ROW0__UART1_DTR 0x1a8 0x3a0 0x000 0x04 0x000
+#define MX25_PAD_KPP_ROW0__GPIO_2_29 0x1a8 0x3a0 0x000 0x05 0x000
-#define MX25_PAD_KPP_ROW1__KPP_ROW1 0x1ac 0x3a4 0x000 0x10 0x000
-#define MX25_PAD_KPP_ROW1__UART3_TXD 0x1ac 0x3a4 0x000 0x11 0x000
-#define MX25_PAD_KPP_ROW1__UART1_DSR 0x1ac 0x3a4 0x000 0x14 0x000
-#define MX25_PAD_KPP_ROW1__GPIO_2_30 0x1ac 0x3a4 0x000 0x15 0x000
+#define MX25_PAD_KPP_ROW1__KPP_ROW1 0x1ac 0x3a4 0x000 0x00 0x000
+#define MX25_PAD_KPP_ROW1__UART3_TXD 0x1ac 0x3a4 0x000 0x01 0x000
+#define MX25_PAD_KPP_ROW1__UART1_DSR 0x1ac 0x3a4 0x000 0x04 0x000
+#define MX25_PAD_KPP_ROW1__GPIO_2_30 0x1ac 0x3a4 0x000 0x05 0x000
-#define MX25_PAD_KPP_ROW2__KPP_ROW2 0x1b0 0x3a8 0x000 0x10 0x000
-#define MX25_PAD_KPP_ROW2__UART3_RTS 0x1b0 0x3a8 0x000 0x11 0x000
-#define MX25_PAD_KPP_ROW2__CSI_D0 0x1b0 0x3a8 0x488 0x13 0x002
-#define MX25_PAD_KPP_ROW2__UART1_DCD 0x1b0 0x3a8 0x000 0x14 0x000
-#define MX25_PAD_KPP_ROW2__GPIO_2_31 0x1b0 0x3a8 0x000 0x15 0x000
+#define MX25_PAD_KPP_ROW2__KPP_ROW2 0x1b0 0x3a8 0x000 0x00 0x000
+#define MX25_PAD_KPP_ROW2__UART3_RTS 0x1b0 0x3a8 0x000 0x01 0x000
+#define MX25_PAD_KPP_ROW2__CSI_D0 0x1b0 0x3a8 0x488 0x03 0x002
+#define MX25_PAD_KPP_ROW2__UART1_DCD 0x1b0 0x3a8 0x000 0x04 0x000
+#define MX25_PAD_KPP_ROW2__GPIO_2_31 0x1b0 0x3a8 0x000 0x05 0x000
-#define MX25_PAD_KPP_ROW3__KPP_ROW3 0x1b4 0x3ac 0x000 0x10 0x000
-#define MX25_PAD_KPP_ROW3__UART3_CTS 0x1b4 0x3ac 0x000 0x11 0x000
-#define MX25_PAD_KPP_ROW3__CSI_D1 0x1b4 0x3ac 0x48c 0x13 0x002
-#define MX25_PAD_KPP_ROW3__UART1_RI 0x1b4 0x3ac 0x000 0x14 0x000
-#define MX25_PAD_KPP_ROW3__GPIO_3_0 0x1b4 0x3ac 0x000 0x15 0x000
+#define MX25_PAD_KPP_ROW3__KPP_ROW3 0x1b4 0x3ac 0x000 0x00 0x000
+#define MX25_PAD_KPP_ROW3__UART3_CTS 0x1b4 0x3ac 0x000 0x01 0x000
+#define MX25_PAD_KPP_ROW3__CSI_D1 0x1b4 0x3ac 0x48c 0x03 0x002
+#define MX25_PAD_KPP_ROW3__UART1_RI 0x1b4 0x3ac 0x000 0x04 0x000
+#define MX25_PAD_KPP_ROW3__GPIO_3_0 0x1b4 0x3ac 0x000 0x05 0x000
#define MX25_PAD_KPP_COL0__KPP_COL0 0x1b8 0x3b0 0x000 0x10 0x000
#define MX25_PAD_KPP_COL0__UART4_RXD 0x1b8 0x3b0 0x570 0x11 0x001
@@ -479,10 +479,10 @@
#define MX25_PAD_KPP_COL1__AUD5_RXD 0x1bc 0x3b4 0x000 0x12 0x000
#define MX25_PAD_KPP_COL1__GPIO_3_2 0x1bc 0x3b4 0x000 0x15 0x000
-#define MX25_PAD_KPP_COL2__KPP_COL2 0x1c0 0x3b8 0x000 0x10 0x000
-#define MX25_PAD_KPP_COL2__UART4_RTS 0x1c0 0x3b8 0x56c 0x11 0x001
-#define MX25_PAD_KPP_COL2__AUD5_TXC 0x1c0 0x3b8 0x000 0x12 0x000
-#define MX25_PAD_KPP_COL2__GPIO_3_3 0x1c0 0x3b8 0x000 0x15 0x000
+#define MX25_PAD_KPP_COL2__KPP_COL2 0x1c0 0x3b8 0x000 0x00 0x000
+#define MX25_PAD_KPP_COL2__UART4_RTS 0x1c0 0x3b8 0x56c 0x01 0x001
+#define MX25_PAD_KPP_COL2__AUD5_TXC 0x1c0 0x3b8 0x000 0x02 0x000
+#define MX25_PAD_KPP_COL2__GPIO_3_3 0x1c0 0x3b8 0x000 0x05 0x000
#define MX25_PAD_KPP_COL3__KPP_COL3 0x1c4 0x3bc 0x000 0x10 0x000
#define MX25_PAD_KPP_COL3__UART4_CTS 0x1c4 0x3bc 0x000 0x11 0x000
@@ -571,10 +571,10 @@
#define MX25_PAD_UPLL_BYPCLK__UPLL_BYPCLK 0x210 0x000 0x000 0x10 0x000
#define MX25_PAD_UPLL_BYPCLK__GPIO_3_16 0x210 0x000 0x000 0x15 0x000
-#define MX25_PAD_VSTBY_REQ__VSTBY_REQ 0x214 0x408 0x000 0x10 0x000
-#define MX25_PAD_VSTBY_REQ__AUD7_TXFS 0x214 0x408 0x000 0x14 0x000
-#define MX25_PAD_VSTBY_REQ__GPIO_3_17 0x214 0x408 0x000 0x15 0x000
-#define MX25_PAD_VSTBY_REQ__UART4_RTS 0x214 0x408 0x56c 0x16 0x002
+#define MX25_PAD_VSTBY_REQ__VSTBY_REQ 0x214 0x408 0x000 0x00 0x000
+#define MX25_PAD_VSTBY_REQ__AUD7_TXFS 0x214 0x408 0x000 0x04 0x000
+#define MX25_PAD_VSTBY_REQ__GPIO_3_17 0x214 0x408 0x000 0x05 0x000
+#define MX25_PAD_VSTBY_REQ__UART4_RTS 0x214 0x408 0x56c 0x06 0x002
#define MX25_PAD_VSTBY_ACK__VSTBY_ACK 0x218 0x40c 0x000 0x10 0x000
#define MX25_PAD_VSTBY_ACK__GPIO_3_18 0x218 0x40c 0x000 0x15 0x000
--
2.7.0
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