ENGR00225875-1 i.MX6Q/Solo SabreAuto Infineon Bluetooth uart3 config

Configure MUX settings for bluetooth operation over UART3.
Enable RTS,CTS and DMA only for uart3.
Affected files :
arch/arm/mach-mx6/board-mx6q_sabreauto.c
arch/arm/mach-mx6/board-mx6q_sabreauto.h
arch/arm/mach-mx6/board-mx6solo_sabreauto.h
arch/arm/plat-mxc/include/mach/iomux-mx6q.h
On behalf of Francisco Munoz <francisco.munoz@freescale.com>.
Some modification are needed also on hciattach tool.

Signed-off-by: Israel Perez <B37753@freescale.com>

4 files changed, 42 insertions, 8 deletions

diff --git a/arch/arm/mach-mx6/board-mx6q_sabreauto.c b/arch/arm/mach-mx6/board-mx6q_sabreauto.c
index 93bbde56cb29..a3e9af57985a 100644
--- a/arch/arm/mach-mx6/board-mx6q_sabreauto.c
+++ b/arch/arm/mach-mx6/board-mx6q_sabreauto.c
@@ -328,10 +328,16 @@ mx6q_sabreauto_anatop_thermal_data __initconst = {
 	.name = "anatop_thermal",
 };
 
+static const struct imxuart_platform_data mx6_bt_uart_data __initconst = {
+	.flags = IMXUART_HAVE_RTSCTS | IMXUART_SDMA,
+	.dma_req_rx = MX6Q_DMA_REQ_UART3_RX,
+	.dma_req_tx = MX6Q_DMA_REQ_UART3_TX,
+};
+
 static inline void mx6q_sabreauto_init_uart(void)
 {
 	imx6q_add_imx_uart(1, NULL);
-	imx6q_add_imx_uart(2, NULL);
+	imx6q_add_imx_uart(2, &mx6_bt_uart_data);
 	imx6q_add_imx_uart(3, NULL);
 }
 
@@ -539,6 +545,9 @@ static int max7310_u39_setup(struct i2c_client *client,
 
 	int n;
 
+	if (uart3_en)
+		max7310_gpio_value[4] = 1;
+
 	 for (n = 0; n < ARRAY_SIZE(max7310_gpio_value); ++n) {
 		gpio_request(gpio_base + n, "MAX7310 U39 GPIO Expander");
 		if (max7310_gpio_value[n] < 0)
@@ -1343,6 +1352,7 @@ static void __init mx6_board_init(void)
 	iomux_v3_cfg_t *tuner_pads = NULL;
 	iomux_v3_cfg_t *spinor_pads = NULL;
 	iomux_v3_cfg_t *weimnor_pads = NULL;
+	iomux_v3_cfg_t *bluetooth_pads = NULL;
 	iomux_v3_cfg_t *extra_pads = NULL;
 
 	int common_pads_cnt;
@@ -1353,6 +1363,7 @@ static void __init mx6_board_init(void)
 	int tuner_pads_cnt;
 	int spinor_pads_cnt;
 	int weimnor_pads_cnt;
+	int bluetooth_pads_cnt;
 	int extra_pads_cnt;
 
 	if (cpu_is_mx6q()) {
@@ -1363,6 +1374,7 @@ static void __init mx6_board_init(void)
 		tuner_pads = mx6q_tuner_pads;
 		spinor_pads = mx6q_spinor_pads;
 		weimnor_pads = mx6q_weimnor_pads;
+		bluetooth_pads = mx6q_bluetooth_pads;
 
 		common_pads_cnt = ARRAY_SIZE(mx6q_sabreauto_pads);
 		can0_pads_cnt = ARRAY_SIZE(mx6q_sabreauto_can0_pads);
@@ -1371,6 +1383,7 @@ static void __init mx6_board_init(void)
 		tuner_pads_cnt = ARRAY_SIZE(mx6q_tuner_pads);
 		spinor_pads_cnt = ARRAY_SIZE(mx6q_spinor_pads);
 		weimnor_pads_cnt = ARRAY_SIZE(mx6q_weimnor_pads);
+		bluetooth_pads_cnt = ARRAY_SIZE(mx6q_bluetooth_pads);
 		if (board_is_mx6_reva()) {
 			i2c3_pads = mx6q_i2c3_pads_rev_a;
 			i2c3_pads_cnt = ARRAY_SIZE(mx6q_i2c3_pads_rev_a);
@@ -1392,6 +1405,7 @@ static void __init mx6_board_init(void)
 		tuner_pads = mx6dl_tuner_pads;
 		spinor_pads = mx6dl_spinor_pads;
 		weimnor_pads = mx6dl_weimnor_pads;
+		bluetooth_pads = mx6dl_bluetooth_pads;
 
 		common_pads_cnt = ARRAY_SIZE(mx6dl_sabreauto_pads);
 		can0_pads_cnt = ARRAY_SIZE(mx6dl_sabreauto_can0_pads);
@@ -1400,6 +1414,7 @@ static void __init mx6_board_init(void)
 		tuner_pads_cnt = ARRAY_SIZE(mx6dl_tuner_pads);
 		spinor_pads_cnt = ARRAY_SIZE(mx6dl_spinor_pads);
 		weimnor_pads_cnt = ARRAY_SIZE(mx6dl_weimnor_pads);
+		bluetooth_pads_cnt = ARRAY_SIZE(mx6dl_bluetooth_pads);
 
 		if (board_is_mx6_reva()) {
 			i2c3_pads = mx6dl_i2c3_pads_rev_a;
@@ -1434,6 +1449,11 @@ static void __init mx6_board_init(void)
 			mxc_iomux_v3_setup_multiple_pads(i2c3_pads,
 					i2c3_pads_cnt);
 		}
+		if (uart3_en) {
+			BUG_ON(!bluetooth_pads);
+			mxc_iomux_v3_setup_multiple_pads(bluetooth_pads,
+					bluetooth_pads_cnt);
+		}
 	}
 
 	if (can0_enable) {
diff --git a/arch/arm/mach-mx6/board-mx6q_sabreauto.h b/arch/arm/mach-mx6/board-mx6q_sabreauto.h
index fee469abfbb0..b1e2b9eec10b 100644
--- a/arch/arm/mach-mx6/board-mx6q_sabreauto.h
+++ b/arch/arm/mach-mx6/board-mx6q_sabreauto.h
@@ -191,9 +191,7 @@ static iomux_v3_cfg_t mx6q_sabreauto_pads[] = {
 	MX6Q_PAD_GPIO_8__UART2_RXD,
 	MX6Q_PAD_SD4_DAT6__UART2_CTS,
 	MX6Q_PAD_SD4_DAT5__UART2_RTS,
-	/* UART 3 */
-	MX6Q_PAD_SD4_CLK__UART3_TXD,
-	MX6Q_PAD_SD4_CMD__UART3_RXD,
+
 	/*USBs OC pin */
 	MX6Q_PAD_EIM_WAIT__GPIO_5_0,  /*HOST1_OC*/
 	MX6Q_PAD_SD4_DAT0__GPIO_2_8,  /*OTG_OC*/
@@ -299,6 +297,15 @@ static iomux_v3_cfg_t mx6q_spinor_pads[] __initdata = {
 	MX6Q_PAD_EIM_D19__GPIO_3_19,
 };
 
+/*Bluetooth is conflicted with GMPI and NOR chips*/
+static iomux_v3_cfg_t mx6q_bluetooth_pads[] __initdata = {
+	/* UART 3 */
+	MX6Q_PAD_SD4_CLK__UART3_RXD,
+	MX6Q_PAD_SD4_CMD__UART3_TXD,
+	MX6Q_PAD_EIM_D30__UART3_CTS,
+	MX6Q_PAD_EIM_EB3__UART3_RTS,
+};
+
 static iomux_v3_cfg_t mx6q_weimnor_pads[] __initdata = {
 	/* Parallel NOR */
 	MX6Q_PAD_EIM_OE__WEIM_WEIM_OE,
diff --git a/arch/arm/mach-mx6/board-mx6solo_sabreauto.h b/arch/arm/mach-mx6/board-mx6solo_sabreauto.h
index 18f5d9062e86..31c3a6182b93 100644
--- a/arch/arm/mach-mx6/board-mx6solo_sabreauto.h
+++ b/arch/arm/mach-mx6/board-mx6solo_sabreauto.h
@@ -188,9 +188,7 @@ static iomux_v3_cfg_t mx6dl_sabreauto_pads[] = {
 	MX6DL_PAD_GPIO_8__UART2_RXD,
 	MX6DL_PAD_SD4_DAT6__UART2_CTS,
 	MX6DL_PAD_SD4_DAT5__UART2_RTS,
-	/* UART 3 */
-	MX6DL_PAD_SD4_CLK__UART3_TXD,
-	MX6DL_PAD_SD4_CMD__UART3_RXD,
+
 	/*USBs OC pin */
 	MX6DL_PAD_EIM_WAIT__GPIO_5_0,  /*HOST1_OC*/
 	MX6DL_PAD_SD4_DAT0__GPIO_2_8,  /*OTG_OC*/
@@ -297,6 +295,15 @@ static iomux_v3_cfg_t mx6dl_spinor_pads[] __initdata = {
 	MX6DL_PAD_EIM_D19__GPIO_3_19,
 };
 
+/*Bluetooth is conflicted with GMPI and NOR chips*/
+static iomux_v3_cfg_t mx6dl_bluetooth_pads[] __initdata = {
+	/* UART 3 */
+	MX6DL_PAD_SD4_CLK__UART3_RXD,
+	MX6DL_PAD_SD4_CMD__UART3_TXD,
+	MX6DL_PAD_EIM_D30__UART3_CTS,
+	MX6DL_PAD_EIM_EB3__UART3_RTS,
+};
+
 static iomux_v3_cfg_t mx6dl_weimnor_pads[] __initdata = {
 	/* Parallel NOR */
 	MX6DL_PAD_EIM_OE__WEIM_WEIM_OE,
diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx6q.h b/arch/arm/plat-mxc/include/mach/iomux-mx6q.h
index 9226af18f7ee..fe107cffca7b 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-mx6q.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-mx6q.h
@@ -566,7 +566,7 @@
 #define _MX6Q_PAD_EIM_D30__IPU1_CSI0_D_3				\
 		IOMUX_PAD(0x03E0, 0x00CC, 3, 0x0000, 0, 0)
 #define _MX6Q_PAD_EIM_D30__UART3_CTS			\
-		IOMUX_PAD(0x03E0, 0x00CC, 4, 0x092C, 2, 0)
+		IOMUX_PAD(0x03E0, 0x00CC, 4, 0x0000, 0, 0)
 #define _MX6Q_PAD_EIM_D30__GPIO_3_30			\
 		IOMUX_PAD(0x03E0, 0x00CC, 5, 0x0000, 0, 0)
 #define _MX6Q_PAD_EIM_D30__USBOH3_USBH1_OC		\