Create default pin initialization functions for the default iomux function
assignments of the main peripherals.
Signed-off-by: Benoît Thébaudeau <benoit.thebaud...@advansee.com>
Cc: Stefano Babic <sba...@denx.de>
---
.../arch/arm/cpu/armv7/mx5/soc.c | 139 ++++++++++++++++++++
.../arch/arm/include/asm/arch-mx5/sys_proto.h | 5 +
2 files changed, 144 insertions(+)
diff --git u-boot-4d3c95f.orig/arch/arm/cpu/armv7/mx5/soc.c
u-boot-4d3c95f/arch/arm/cpu/armv7/mx5/soc.c
index 3f5a4f7..ee19b54 100644
--- u-boot-4d3c95f.orig/arch/arm/cpu/armv7/mx5/soc.c
+++ u-boot-4d3c95f/arch/arm/cpu/armv7/mx5/soc.c
@@ -25,6 +25,8 @@
#include <common.h>
#include <asm/arch/imx-regs.h>
+#include <asm/arch/mx5x_pins.h>
+#include <asm/arch/iomux.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
@@ -71,6 +73,143 @@ u32 get_cpu_rev(void)
return system_rev;
}
+#ifdef CONFIG_MXC_UART
+#if CONFIG_MXC_UART_BASE == UART1_BASE
+#ifdef CONFIG_MX51
+void mx51_uart1_init_pins(void)
+{
+ int in_pad, out_pad;
+
+ /* Set up pins for UART1. */
+ mxc_request_iomux(MX51_PIN_UART1_RXD, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_UART1_TXD, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_UART1_RTS, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_UART1_CTS, IOMUX_CONFIG_ALT0);
+
+ mxc_iomux_set_input(MX51_UART1_IPP_UART_RXD_MUX_SELECT_INPUT,
+ INPUT_CTL_PATH0);
+ mxc_iomux_set_input(MX51_UART1_IPP_UART_RTS_B_SELECT_INPUT,
+ INPUT_CTL_PATH0);
+
+ in_pad = PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL |
+ PAD_CTL_100K_PU | PAD_CTL_ODE_OPENDRAIN_NONE |
+ PAD_CTL_DRV_HIGH | PAD_CTL_SRE_SLOW;
+ out_pad = PAD_CTL_HYS_NONE | PAD_CTL_PKE_NONE |
+ PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH |
+ PAD_CTL_SRE_SLOW;
+
+ mxc_iomux_set_pad(MX51_PIN_UART1_RXD, in_pad);
+ mxc_iomux_set_pad(MX51_PIN_UART1_TXD, out_pad);
+ mxc_iomux_set_pad(MX51_PIN_UART1_RTS, in_pad);
+ mxc_iomux_set_pad(MX51_PIN_UART1_CTS, out_pad);
+}
+#endif
+#endif
+#endif
+
+#ifdef CONFIG_MXC_SPI
+void mx51_ecspi1_init_pins(void)
+{
+ int act_lo_pad, act_hi_pad;
+
+ /* Set up pins for eCSPI1. */
+ mxc_request_iomux(MX51_PIN_CSPI1_SCLK, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_CSPI1_RDY, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_CSPI1_MOSI, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_CSPI1_MISO, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_CSPI1_SS0, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_CSPI1_SS1, IOMUX_CONFIG_ALT0);
+
+ act_lo_pad = PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
+ PAD_CTL_PUE_PULL | PAD_CTL_100K_PU |
+ PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH |
+ PAD_CTL_SRE_SLOW;
+ act_hi_pad = PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
+ PAD_CTL_PUE_PULL | PAD_CTL_100K_PD |
+ PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH |
+ PAD_CTL_SRE_SLOW;
+
+ mxc_iomux_set_pad(MX51_PIN_CSPI1_SCLK, act_hi_pad);
+ mxc_iomux_set_pad(MX51_PIN_CSPI1_RDY, act_lo_pad);
+ mxc_iomux_set_pad(MX51_PIN_CSPI1_MOSI, act_hi_pad);
+ mxc_iomux_set_pad(MX51_PIN_CSPI1_MISO, act_hi_pad);
+ mxc_iomux_set_pad(MX51_PIN_CSPI1_SS0, act_lo_pad);
+ mxc_iomux_set_pad(MX51_PIN_CSPI1_SS1, act_lo_pad);
+}
+#endif
+
+#ifdef CONFIG_FSL_ESDHC
+void mx51_esdhc1_init_pins(void)
+{
+ int out_pad, io_pad;
+
+ /* Set up pins for eSDHC1. */
+ mxc_request_iomux(MX51_PIN_SD1_CMD,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD1_CLK, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD1_DATA0,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD1_DATA1,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD1_DATA2,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD1_DATA3,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_GPIO1_1,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0); /* WP */
+ mxc_request_iomux(MX51_PIN_GPIO1_0,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0); /* CD */
+
+ out_pad = PAD_CTL_DRV_VOT_HIGH | PAD_CTL_HYS_NONE | PAD_CTL_PKE_ENABLE |
+ PAD_CTL_PUE_PULL | PAD_CTL_47K_PU | PAD_CTL_ODE_OPENDRAIN_NONE |
+ PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST;
+ io_pad = PAD_CTL_DRV_VOT_HIGH | PAD_CTL_HYS_ENABLE |
+ PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | PAD_CTL_47K_PU |
+ PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST;
+
+ mxc_iomux_set_pad(MX51_PIN_SD1_CMD, io_pad);
+ mxc_iomux_set_pad(MX51_PIN_SD1_CLK, out_pad);
+ mxc_iomux_set_pad(MX51_PIN_SD1_DATA0, io_pad);
+ mxc_iomux_set_pad(MX51_PIN_SD1_DATA1, io_pad);
+ mxc_iomux_set_pad(MX51_PIN_SD1_DATA2, io_pad);
+ mxc_iomux_set_pad(MX51_PIN_SD1_DATA3, io_pad);
+ mxc_iomux_set_pad(MX51_PIN_GPIO1_1, PAD_CTL_HYS_ENABLE); /* WP */
+ mxc_iomux_set_pad(MX51_PIN_GPIO1_0, PAD_CTL_HYS_ENABLE); /* CD */
+}
+
+void mx51_esdhc2_init_pins(void)
+{
+ int out_pad, io_pad;
+
+ /* Set up pins for eSDHC2. */
+ mxc_request_iomux(MX51_PIN_SD2_CMD,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD2_CLK, IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD2_DATA0,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD2_DATA1,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD2_DATA2,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD2_DATA3,
+ IOMUX_CONFIG_SION | IOMUX_CONFIG_ALT0);
+
+ out_pad = PAD_CTL_DRV_VOT_HIGH | PAD_CTL_HYS_NONE | PAD_CTL_PKE_ENABLE |
+ PAD_CTL_PUE_PULL | PAD_CTL_47K_PU | PAD_CTL_ODE_OPENDRAIN_NONE |
+ PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST;
+ io_pad = PAD_CTL_DRV_VOT_HIGH | PAD_CTL_HYS_ENABLE |
+ PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | PAD_CTL_47K_PU |
+ PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST;
+
+ mxc_iomux_set_pad(MX51_PIN_SD2_CMD, io_pad);
+ mxc_iomux_set_pad(MX51_PIN_SD2_CLK, out_pad);
+ mxc_iomux_set_pad(MX51_PIN_SD2_DATA0, io_pad);
+ mxc_iomux_set_pad(MX51_PIN_SD2_DATA1, io_pad);
+ mxc_iomux_set_pad(MX51_PIN_SD2_DATA2, io_pad);
+ mxc_iomux_set_pad(MX51_PIN_SD2_DATA3, io_pad);
+}
+#endif
+
#if defined(CONFIG_FEC_MXC)
void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
{
diff --git u-boot-4d3c95f.orig/arch/arm/include/asm/arch-mx5/sys_proto.h
u-boot-4d3c95f/arch/arm/include/asm/arch-mx5/sys_proto.h
index 7b5246e..ce4a94c 100644
--- u-boot-4d3c95f.orig/arch/arm/include/asm/arch-mx5/sys_proto.h
+++ u-boot-4d3c95f/arch/arm/include/asm/arch-mx5/sys_proto.h
@@ -39,4 +39,9 @@ u32 get_ahb_clk(void);
u32 get_periph_clk(void);
char *get_reset_cause(void);
+void mx51_uart1_init_pins(void);
+void mx51_ecspi1_init_pins(void);
+void mx51_esdhc1_init_pins(void);
+void mx51_esdhc2_init_pins(void);
+
#endif
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