diff options
| author | Helmut Raiger <helmut.raiger@hale.at> | 2011-10-27 01:31:13 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-11-03 22:56:20 +0100 |
| commit | d121d20195aca8c7bd76f1ba67ee84f8964330c4 (patch) | |
| tree | eca55d9198689e5ec998a4e04145d17b2bc861f8 /arch | |
| parent | deb53483df20d3a02bb041624ca91c93adc3ec87 (diff) | |
mx31: define pins and init for UART2 and CSPI3
Signed-off-by: Helmut Raiger <helmut.raiger@hale.at>
Acked-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/arm1136/mx31/devices.c | 15 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-mx31/clock.h | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-mx31/imx-regs.h | 16 |
3 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm1136/mx31/devices.c b/arch/arm/cpu/arm1136/mx31/devices.c index 1e7d48f8fb4..b42dac3fbed 100644 --- a/arch/arm/cpu/arm1136/mx31/devices.c +++ b/arch/arm/cpu/arm1136/mx31/devices.c @@ -38,7 +38,22 @@ void mx31_uart1_hw_init(void) } #endif +#ifdef CONFIG_SYS_MX31_UART2 +void mx31_uart2_hw_init(void) +{ + /* setup pins for UART2 */ + mx31_gpio_mux(MUX_RXD2__UART2_RXD_MUX); + mx31_gpio_mux(MUX_TXD2__UART2_TXD_MUX); + mx31_gpio_mux(MUX_RTS2__UART2_RTS_B); + mx31_gpio_mux(MUX_CTS2__UART2_CTS_B); +} +#endif + #ifdef CONFIG_MXC_SPI +/* + * Note: putting several spi setups here makes no sense as they may differ + * at board level (physical pin SS0 of CSPI2 may aswell be used as SS0 of CSPI3) + */ void mx31_spi2_hw_init(void) { /* SPI2 */ diff --git a/arch/arm/include/asm/arch-mx31/clock.h b/arch/arm/include/asm/arch-mx31/clock.h index 3e22d9a9975..253a0e15848 100644 --- a/arch/arm/include/asm/arch-mx31/clock.h +++ b/arch/arm/include/asm/arch-mx31/clock.h @@ -40,6 +40,7 @@ extern void mx31_set_pad(enum iomux_pins pin, u32 config); extern void mx31_set_gpr(enum iomux_gp_func gp, char en); void mx31_uart1_hw_init(void); +void mx31_uart2_hw_init(void); void mx31_spi2_hw_init(void); void mxc_hw_watchdog_enable(void); void mxc_hw_watchdog_reset(void); diff --git a/arch/arm/include/asm/arch-mx31/imx-regs.h b/arch/arm/include/asm/arch-mx31/imx-regs.h index 6ce008d6d1a..f487975e37e 100644 --- a/arch/arm/include/asm/arch-mx31/imx-regs.h +++ b/arch/arm/include/asm/arch-mx31/imx-regs.h @@ -680,12 +680,23 @@ struct mx31_weim { /* Register offsets based on IOMUXC_BASE */ /* 0x00 .. 0x7b */ +#define MUX_CTL_CSPI3_MISO 0x0c +#define MUX_CTL_CSPI3_SCLK 0x0d +#define MUX_CTL_CSPI3_SPI_RDY 0x0e +#define MUX_CTL_CSPI3_MOSI 0x13 + #define MUX_CTL_USBH2_DATA1 0x40 #define MUX_CTL_USBH2_DIR 0x44 #define MUX_CTL_USBH2_STP 0x45 #define MUX_CTL_USBH2_NXT 0x46 #define MUX_CTL_USBH2_DATA0 0x47 #define MUX_CTL_USBH2_CLK 0x4B + +#define MUX_CTL_TXD2 0x70 +#define MUX_CTL_RTS2 0x71 +#define MUX_CTL_CTS2 0x72 +#define MUX_CTL_RXD2 0x77 + #define MUX_CTL_RTS1 0x7c #define MUX_CTL_CTS1 0x7d #define MUX_CTL_DTR_DCE1 0x7e @@ -743,6 +754,11 @@ struct mx31_weim { #define MUX_RTS1__UART1_RTS_B IOMUX_MODE(MUX_CTL_RTS1, MUX_CTL_FUNC) #define MUX_CTS1__UART1_CTS_B IOMUX_MODE(MUX_CTL_CTS1, MUX_CTL_FUNC) +#define MUX_RXD2__UART2_RXD_MUX IOMUX_MODE(MUX_CTL_RXD2, MUX_CTL_FUNC) +#define MUX_TXD2__UART2_TXD_MUX IOMUX_MODE(MUX_CTL_TXD2, MUX_CTL_FUNC) +#define MUX_RTS2__UART2_RTS_B IOMUX_MODE(MUX_CTL_RTS2, MUX_CTL_FUNC) +#define MUX_CTS2__UART2_CTS_B IOMUX_MODE(MUX_CTL_CTS2, MUX_CTL_FUNC) + #define MUX_CSPI2_SS0__CSPI2_SS0_B IOMUX_MODE(MUX_CTL_CSPI2_SS0, MUX_CTL_FUNC) #define MUX_CSPI2_SS1__CSPI2_SS1_B IOMUX_MODE(MUX_CTL_CSPI2_SS1, MUX_CTL_FUNC) #define MUX_CSPI2_SS2__CSPI2_SS2_B IOMUX_MODE(MUX_CTL_CSPI2_SS2, MUX_CTL_FUNC) |