core support for Freescale mx31

This patch adds the core support for Freescale mx31

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>

2 files changed, 168 insertions, 0 deletions

diff --git a/include/asm-arm/arch-mx31/mx31-regs.h b/include/asm-arm/arch-mx31/mx31-regs.h
new file mode 100644
index 0000000..ece6420
--- /dev/null
+++ b/include/asm-arm/arch-mx31/mx31-regs.h
@@ -0,0 +1,136 @@
+/*
+ *
+ * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARCH_MX31_REGS_H
+#define __ASM_ARCH_MX31_REGS_H
+
+#define __REG(x)     (*((volatile u32 *)(x)))
+#define __REG16(x)   (*((volatile u16 *)(x)))
+#define __REG8(x)    (*((volatile u8 *)(x)))
+
+#define CCM_BASE	0x53f80000
+#define CCM_CCMR	(CCM_BASE + 0x00)
+#define CCM_PDR0	(CCM_BASE + 0x04)
+#define CCM_PDR1	(CCM_BASE + 0x08)
+#define CCM_RCSR	(CCM_BASE + 0x0c)
+#define CCM_MPCTL	(CCM_BASE + 0x10)
+#define CCM_UPCTL	(CCM_BASE + 0x10)
+#define CCM_SPCTL	(CCM_BASE + 0x18)
+#define CCM_COSR	(CCM_BASE + 0x1C)
+
+#define CCMR_MDS	(1 << 7)
+#define CCMR_SBYCS	(1 << 4)
+#define CCMR_MPE	(1 << 3)
+#define CCMR_PRCS_MASK	(3 << 1)
+#define CCMR_FPM	(1 << 1)
+#define CCMR_CKIH	(2 << 1)
+
+#define PDR0_CSI_PODF(x)	(((x) & 0x1ff) << 23)
+#define PDR0_PER_PODF(x)	(((x) & 0x1f) << 16)
+#define PDR0_HSP_PODF(x)	(((x) & 0x7) << 11)
+#define PDR0_NFC_PODF(x)	(((x) & 0x7) << 8)
+#define PDR0_IPG_PODF(x)	(((x) & 0x3) << 6)
+#define PDR0_MAX_PODF(x)	(((x) & 0x7) << 3)
+#define PDR0_MCU_PODF(x)	((x) & 0x7)
+
+#define PLL_PD(x)		(((x) & 0xf) << 26)
+#define PLL_MFD(x)		(((x) & 0x3ff) << 16)
+#define PLL_MFI(x)		(((x) & 0xf) << 10)
+#define PLL_MFN(x)		(((x) & 0x3ff) << 0)
+
+#define WEIM_BASE	0xb8002000
+#define CSCR_U(x)	(WEIM_BASE + (x) * 0x10)
+#define CSCR_L(x)	(WEIM_BASE + 4 + (x) * 0x10)
+#define CSCR_A(x)	(WEIM_BASE + 8 + (x) * 0x10)
+
+#define IOMUXC_BASE	0x43FAC000
+#define IOMUXC_GPR	(IOMUXC_BASE + 0x8)
+#define IOMUXC_SW_MUX_CTL(x)	(IOMUXC_BASE + 0xc + (x) * 4)
+#define IOMUXC_SW_PAD_CTL(x)	(IOMUXC_BASE + 0x154 + (x) * 4)
+
+#define IPU_BASE		0x53fc0000
+#define IPU_CONF		IPU_BASE
+
+#define IPU_CONF_PXL_ENDIAN	(1<<8)
+#define IPU_CONF_DU_EN		(1<<7)
+#define IPU_CONF_DI_EN		(1<<6)
+#define IPU_CONF_ADC_EN		(1<<5)
+#define IPU_CONF_SDC_EN		(1<<4)
+#define IPU_CONF_PF_EN		(1<<3)
+#define IPU_CONF_ROT_EN		(1<<2)
+#define IPU_CONF_IC_EN		(1<<1)
+#define IPU_CONF_SCI_EN		(1<<0)
+
+#define WDOG_BASE		0x53FDC000
+
+/*
+ * Signal Multiplexing (IOMUX)
+ */
+
+/* bits in the SW_MUX_CTL registers */
+#define MUX_CTL_OUT_GPIO_DR	(0 << 4)
+#define MUX_CTL_OUT_FUNC	(1 << 4)
+#define MUX_CTL_OUT_ALT1	(2 << 4)
+#define MUX_CTL_OUT_ALT2	(3 << 4)
+#define MUX_CTL_OUT_ALT3	(4 << 4)
+#define MUX_CTL_OUT_ALT4	(5 << 4)
+#define MUX_CTL_OUT_ALT5	(6 << 4)
+#define MUX_CTL_OUT_ALT6	(7 << 4)
+#define MUX_CTL_IN_NONE		(0 << 0)
+#define MUX_CTL_IN_GPIO		(1 << 0)
+#define MUX_CTL_IN_FUNC		(2 << 0)
+#define MUX_CTL_IN_ALT1		(4 << 0)
+#define MUX_CTL_IN_ALT2		(8 << 0)
+
+#define MUX_CTL_FUNC		(MUX_CTL_OUT_FUNC | MUX_CTL_IN_FUNC)
+#define MUX_CTL_ALT1		(MUX_CTL_OUT_ALT1 | MUX_CTL_IN_ALT1)
+#define MUX_CTL_ALT2		(MUX_CTL_OUT_ALT2 | MUX_CTL_IN_ALT2)
+#define MUX_CTL_GPIO		(MUX_CTL_OUT_GPIO_DR | MUX_CTL_IN_GPIO)
+
+/* Register offsets based on IOMUXC_BASE */
+/* 0x00 .. 0x7b */
+#define MUX_CTL_RTS1		0x7c
+#define MUX_CTL_CTS1		0x7d
+#define MUX_CTL_DTR_DCE1	0x7e
+#define MUX_CTL_DSR_DCE1	0x7f
+#define MUX_CTL_CSPI2_SCLK	0x80
+#define MUX_CTL_CSPI2_SPI_RDY	0x81
+#define MUX_CTL_RXD1		0x82
+#define MUX_CTL_TXD1		0x83
+#define MUX_CTL_CSPI2_MISO	0x84
+/* 0x85 .. 0x8a */
+#define MUX_CTL_CSPI2_MOSI	0x8b
+
+/* The modes a specific pin can be in
+ * these macros can be used in mx31_gpio_mux() and have the form
+ * MUX_[contact name]__[pin function]
+ */
+#define MUX_RXD1__UART1_RXD_MUX	((MUX_CTL_FUNC << 8) | MUX_CTL_RXD1)
+#define MUX_TXD1__UART1_TXD_MUX	((MUX_CTL_FUNC << 8) | MUX_CTL_TXD1)
+#define MUX_RTS1__UART1_RTS_B	((MUX_CTL_FUNC << 8) | MUX_CTL_RTS1)
+#define MUX_RTS1__UART1_CTS_B	((MUX_CTL_FUNC << 8) | MUX_CTL_CTS1)
+
+#define MUX_CSPI2_MOSI__I2C2_SCL ((MUX_CTL_ALT1 << 8) | MUX_CTL_CSPI2_MOSI)
+#define MUX_CSPI2_MISO__I2C2_SCL ((MUX_CTL_ALT1 << 8) | MUX_CTL_CSPI2_MISO)
+
+#endif /* __ASM_ARCH_MX31_REGS_H */
diff --git a/include/asm-arm/arch-mx31/mx31.h b/include/asm-arm/arch-mx31/mx31.h
new file mode 100644
index 0000000..f89a401
--- /dev/null
+++ b/include/asm-arm/arch-mx31/mx31.h
@@ -0,0 +1,32 @@
+/*
+ *
+ * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARCH_MX31_H
+#define __ASM_ARCH_MX31_H
+
+u32 mx31_get_mpl_dpdgck_clk(void);
+u32 mx31_get_mcu_main_clk(void);
+u32 mx31_get_ipg_clk(void);
+void mx31_gpio_mux(unsigned long mode);
+
+#endif /* __ASM_ARCH_MX31_H */