ENGR00108673 Add i.MX25 core to U-Boot

This patch add support on U-Boot to i.MX25 processor.

Signed-off-by: Alan Carvalho de Assis <alan.assis@freescale.com>

1 files changed, 220 insertions, 0 deletions

diff --git a/include/asm-arm/arch-mx25/iomux.h b/include/asm-arm/arch-mx25/iomux.h
new file mode 100644
index 0000000..0719c79
--- /dev/null
+++ b/include/asm-arm/arch-mx25/iomux.h
@@ -0,0 +1,220 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#ifndef __MACH_MX25_IOMUX_H__
+#define __MACH_MX25_IOMUX_H__
+
+#include <asm/arch/mx25.h>
+
+/*!
+ * @file mach-mx25/iomux.h
+ *
+ * @brief I/O Muxing control definitions and functions
+ *
+ * @ingroup GPIO_MX25
+ */
+
+/*!
+ * IOMUX functions
+ * SW_MUX_CTL
+ */
+typedef enum iomux_pin_config {
+	MUX_CONFIG_FUNC = 0,	/*!< used as function */
+	MUX_CONFIG_ALT1,	/*!< used as alternate function 1 */
+	MUX_CONFIG_ALT2,	/*!< used as alternate function 2 */
+	MUX_CONFIG_ALT3,	/*!< used as alternate function 3 */
+	MUX_CONFIG_ALT4,	/*!< used as alternate function 4 */
+	MUX_CONFIG_ALT5,	/*!< used as alternate function 5 */
+	MUX_CONFIG_ALT6,	/*!< used as alternate function 6 */
+	MUX_CONFIG_ALT7,	/*!< used as alternate function 7 */
+	MUX_CONFIG_SION = 0x1 << 4,	/*!< used as LOOPBACK:MUX SION bit */
+	MUX_CONFIG_GPIO = MUX_CONFIG_ALT5,	/*!< used as GPIO */
+} iomux_pin_cfg_t;
+
+/*!
+ * IOMUX pad functions
+ * SW_PAD_CTL
+ */
+typedef enum iomux_pad_config {
+	PAD_CTL_DRV_3_3V = 0x0 << 13,
+	PAD_CTL_DRV_1_8V = 0x1 << 13,
+	PAD_CTL_HYS_CMOS = 0x0 << 8,
+	PAD_CTL_HYS_SCHMITZ = 0x1 << 8,
+	PAD_CTL_PKE_NONE = 0x0 << 7,
+	PAD_CTL_PKE_ENABLE = 0x1 << 7,
+	PAD_CTL_PUE_KEEPER = 0x0 << 6,
+	PAD_CTL_PUE_PUD = 0x1 << 6,
+	PAD_CTL_100K_PD = 0x0 << 4,
+	PAD_CTL_47K_PU = 0x1 << 4,
+	PAD_CTL_100K_PU = 0x2 << 4,
+	PAD_CTL_22K_PU = 0x3 << 4,
+	PAD_CTL_ODE_CMOS = 0x0 << 3,
+	PAD_CTL_ODE_OpenDrain = 0x1 << 3,
+	PAD_CTL_DRV_NORMAL = 0x0 << 1,
+	PAD_CTL_DRV_HIGH = 0x1 << 1,
+	PAD_CTL_DRV_MAX = 0x2 << 1,
+	PAD_CTL_SRE_SLOW = 0x0 << 0,
+	PAD_CTL_SRE_FAST = 0x1 << 0
+} iomux_pad_config_t;
+
+/*!
+ * IOMUX general purpose functions
+ * IOMUXC_GPR1
+ */
+typedef enum iomux_gp_func {
+	MUX_SDCTL_CSD0_SEL = 0x1 << 0,
+	MUX_SDCTL_CSD1_SEL = 0x1 << 1,
+} iomux_gp_func_t;
+
+/*!
+ * IOMUX SELECT_INPUT register index
+ * Base register is IOMUXSW_INPUT_CTL in iomux.c
+ */
+typedef enum iomux_input_select {
+	MUX_IN_AUDMUX_P4_INPUT_DA_AMX = 0,
+	MUX_IN_AUDMUX_P4_INPUT_DB_AMX,
+	MUX_IN_AUDMUX_P4_INPUT_RXCLK_AMX,
+	MUX_IN_AUDMUX_P4_INPUT_RXFS_AMX,
+	MUX_IN_AUDMUX_P4_INPUT_TXCLK_AMX,
+	MUX_IN_AUDMUX_P4_INPUT_TXFS_AMX,
+	MUX_IN_AUDMUX_P7_INPUT_DA_AMX,
+	MUX_IN_AUDMUX_P7_INPUT_TXFS_AMX,
+	MUX_IN_CAN1_IPP_IND_CANRX,
+	MUX_IN_CAN2_IPP_IND_CANRX,
+	MUX_IN_CSI_IPP_CSI_D_0,
+	MUX_IN_CSI_IPP_CSI_D_1,
+	MUX_IN_CSPI1_IPP_IND_SS3_B,
+	MUX_IN_CSPI2_IPP_CSPI_CLK_IN,
+	MUX_IN_CSPI2_IPP_IND_DATAREADY_B,
+	MUX_IN_CSPI2_IPP_IND_MISO,
+	MUX_IN_CSPI2_IPP_IND_MOSI,
+	MUX_IN_CSPI2_IPP_IND_SS0_B,
+	MUX_IN_CSPI2_IPP_IND_SS1_B,
+	MUX_IN_CSPI3_IPP_CSPI_CLK_IN,
+	MUX_IN_CSPI3_IPP_IND_DATAREADY_B,
+	MUX_IN_CSPI3_IPP_IND_MISO,
+	MUX_IN_CSPI3_IPP_IND_MOSI,
+	MUX_IN_CSPI3_IPP_IND_SS0_B,
+	MUX_IN_CSPI3_IPP_IND_SS1_B,
+	MUX_IN_CSPI3_IPP_IND_SS2_B,
+	MUX_IN_CSPI3_IPP_IND_SS3_B,
+	MUX_IN_ESDHC1_IPP_DAT4_IN,
+	MUX_IN_ESDHC1_IPP_DAT5_IN,
+	MUX_IN_ESDHC1_IPP_DAT6_IN,
+	MUX_IN_ESDHC1_IPP_DAT7_IN,
+	MUX_IN_ESDHC2_IPP_CARD_CLK_IN,
+	MUX_IN_ESDHC2_IPP_CMD_IN,
+	MUX_IN_ESDHC2_IPP_DAT0_IN,
+	MUX_IN_ESDHC2_IPP_DAT1_IN,
+	MUX_IN_ESDHC2_IPP_DAT2_IN,
+	MUX_IN_ESDHC2_IPP_DAT3_IN,
+	MUX_IN_ESDHC2_IPP_DAT4_IN,
+	MUX_IN_ESDHC2_IPP_DAT5_IN,
+	MUX_IN_ESDHC2_IPP_DAT6_IN,
+	MUX_IN_ESDHC2_IPP_DAT7_IN,
+	MUX_IN_FEC_FEC_COL,
+	MUX_IN_FEC_FEC_CRS,
+	MUX_IN_FEC_FEC_RDATA_2,
+	MUX_IN_FEC_FEC_RDATA_3,
+	MUX_IN_FEC_FEC_RX_CLK,
+	MUX_IN_FEC_FEC_RX_ER,
+	MUX_IN_I2C2_IPP_SCL_IN,
+	MUX_IN_I2C2_IPP_SDA_IN,
+	MUX_IN_I2C3_IPP_SCL_IN,
+	MUX_IN_I2C3_IPP_SDA_IN,
+	MUX_IN_KPP_IPP_IND_COL_4,
+	MUX_IN_KPP_IPP_IND_COL_5,
+	MUX_IN_KPP_IPP_IND_COL_6,
+	MUX_IN_KPP_IPP_IND_COL_7,
+	MUX_IN_KPP_IPP_IND_ROW_4,
+	MUX_IN_KPP_IPP_IND_ROW_5,
+	MUX_IN_KPP_IPP_IND_ROW_6,
+	MUX_IN_KPP_IPP_IND_ROW_7,
+	MUX_IN_SIM1_PIN_SIM_RCVD1_IN,
+	MUX_IN_SIM1_PIN_SIM_SIMPD1,
+	MUX_IN_SIM1_SIM_RCVD1_IO,
+	MUX_IN_SIM2_PIN_SIM_RCVD1_IN,
+	MUX_IN_SIM2_PIN_SIM_SIMPD1,
+	MUX_IN_SIM2_SIM_RCVD1_IO,
+	MUX_IN_UART3_IPP_UART_RTS_B,
+	MUX_IN_UART3_IPP_UART_RXD_MUX,
+	MUX_IN_UART4_IPP_UART_RTS_B,
+	MUX_IN_UART4_IPP_UART_RXD_MUX,
+	MUX_IN_UART5_IPP_UART_RTS_B,
+	MUX_IN_UART5_IPP_UART_RXD_MUX,
+	MUX_IN_USB_TOP_IPP_IND_OTG_USB_OC,
+	MUX_IN_USB_TOP_IPP_IND_UH2_USB_OC,
+} iomux_input_select_t;
+
+/*!
+ * IOMUX input functions
+ * SW_SELECT_INPUT bits 2-0
+ */
+typedef enum iomux_input_config {
+	INPUT_CTL_PATH0 = 0x0,
+	INPUT_CTL_PATH1,
+	INPUT_CTL_PATH2,
+	INPUT_CTL_PATH3,
+	INPUT_CTL_PATH4,
+	INPUT_CTL_PATH5,
+	INPUT_CTL_PATH6,
+	INPUT_CTL_PATH7,
+} iomux_input_cfg_t;
+
+/*!
+ * Request ownership for an IO pin. This function has to be the first one
+ * being called before that pin is used. The caller has to check the
+ * return value to make sure it returns 0.
+ *
+ * @param  pin		a name defined by \b iomux_pin_name_t
+ * @param  cfg		an input function as defined in \b #iomux_pin_cfg_t
+ *
+ * @return		0 if successful; Non-zero otherwise
+ */
+int mxc_request_iomux(iomux_pin_name_t pin, iomux_pin_cfg_t cfg);
+
+/*!
+ * Release ownership for an IO pin
+ *
+ * @param  pin		a name defined by \b iomux_pin_name_t
+ * @param  cfg		an input function as defined in \b #iomux_pin_cfg_t
+ */
+void mxc_free_iomux(iomux_pin_name_t pin, iomux_pin_cfg_t cfg);
+
+/*!
+ * This function enables/disables the general purpose function for a particular
+ * signal.
+ *
+ * @param  gp   one signal as defined in \b #iomux_gp_func_t
+ * @param  en   \b #true to enable; \b #false to disable
+ */
+void mxc_iomux_set_gpr(iomux_gp_func_t gp, int en);
+
+/*!
+ * This function configures the pad value for a IOMUX pin.
+ *
+ * @param  pin          a pin number as defined in \b #iomux_pin_name_t
+ * @param  config       the ORed value of elements defined in \b
+ *				#iomux_pad_config_t
+ */
+void mxc_iomux_set_pad(iomux_pin_name_t pin, u32 config);
+
+/*!
+ * This function configures input path.
+ *
+ * @param  input        index of input select register as defined in \b
+ * 				#iomux_input_select_t
+ * @param  config       the binary value of elements defined in \b
+ *				#iomux_input_cfg_t
+ */
+void mxc_iomux_set_input(iomux_input_select_t input, u32 config);
+#endif