[ADS5121] Support for the ADS5121 board

The following MPC5121e subsystems are supported:

- low-level CPU init
- NOR Boot Flash (common CFI driver)
- DDR SDRAM
- FEC
- I2C
- Watchdog

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
Signed-off-by: Jan Wrobel <wrr@semihalf.com>

1 files changed, 398 insertions, 0 deletions

diff --git a/include/mpc512x.h b/include/mpc512x.h
new file mode 100644
index 0000000..03e0e9a
--- /dev/null
+++ b/include/mpc512x.h
@@ -0,0 +1,398 @@
+/*
+ * Copyright (C) 2004-2006 Freescale Semiconductor, Inc.
+ * (C) Copyright 2007 DENX Software Engineering
+ *
+ * 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.
+ *
+ * Derived from the MPC83xx header.
+ */
+
+#ifndef __MPC512X_H__
+#define __MPC512X_H__
+
+#include <config.h>
+#if defined(CONFIG_E300)
+#include <asm/e300.h>
+#endif
+
+/* System reset offset (PowerPC standard)
+ */
+#define EXC_OFF_SYS_RESET		0x0100
+#define	_START_OFFSET			EXC_OFF_SYS_RESET
+
+
+/* IMMRBAR - Internal Memory Register Base Address
+ */
+#define CONFIG_DEFAULT_IMMR		0xFF400000	/* Default IMMR base address */
+#define IMMRBAR				0x0000		/* Register offset to immr */
+#define IMMRBAR_BASE_ADDR		0xFFF00000	/* Base address mask */
+#define IMMRBAR_RES			~(IMMRBAR_BASE_ADDR)
+
+/* LAWBAR - Local Access Window Base Address Register
+ */
+#define LPBAW			0x0020		/* Register offset to immr */
+#define LPCS0AW			0x0024
+#define LPCS1AW			0x0028
+#define LPCS2AW			0x002C
+#define LPCS3AW			0x0030
+#define LPCS4AW			0x0034
+#define LPCS5AW			0x0038
+#define LPCS6AW			0x003C
+#define LPCA7AW			0x0040
+#define SRAMBAR			0x00C4
+
+#define LPC_OFFSET		0x10000
+
+#define CS0_CONFIG		0x00000
+#define CS1_CONFIG		0x00004
+#define CS2_CONFIG		0x00008
+#define CS3_CONFIG		0x0000C
+#define CS4_CONFIG		0x00010
+#define CS5_CONFIG		0x00014
+#define CS6_CONFIG		0x00018
+#define CS7_CONFIG		0x0001C
+
+#define CS_CTRL			0x00020
+#define CS_CTRL_ME		0x01000000	/* CS Master Enable bit */
+#define CS_CTRL_IE		0x08000000	/* CS Interrupt Enable bit */ 
+
+/* SPRIDR - System Part and Revision ID Register
+ */
+#define SPRIDR_PARTID		0xFFFF0000	/* Part Identification */
+#define SPRIDR_REVID		0x0000FFFF	/* Revision Identification */
+
+#define SPR_5121E		0x80180000
+
+/* SPCR - System Priority Configuration Register
+ */
+#define SPCR_PCIHPE			0x10000000	/* PCI Highest Priority Enable */
+#define SPCR_PCIHPE_SHIFT		(31-3)
+#define SPCR_PCIPR			0x03000000	/* PCI bridge system bus request priority */
+#define SPCR_PCIPR_SHIFT		(31-7)
+#define SPCR_TBEN			0x00400000	/* E300 PowerPC core time base unit enable */
+#define SPCR_TBEN_SHIFT			(31-9)
+#define SPCR_COREPR			0x00300000	/* E300 PowerPC Core system bus request priority */
+#define SPCR_COREPR_SHIFT		(31-11)
+
+/* SWCRR - System Watchdog Control Register
+ */
+#define SWCRR				0x0904		/* Register offset to immr */
+#define SWCRR_SWTC			0xFFFF0000	/* Software Watchdog Time Count */
+#define SWCRR_SWEN			0x00000004	/* Watchdog Enable bit */
+#define SWCRR_SWRI			0x00000002	/* Software Watchdog Reset/Interrupt Select bit */
+#define SWCRR_SWPR			0x00000001	/* Software Watchdog Counter Prescale bit */
+#define SWCRR_RES			~(SWCRR_SWTC | SWCRR_SWEN | SWCRR_SWRI | SWCRR_SWPR)
+
+/* SWCNR - System Watchdog Counter Register
+ */
+#define SWCNR				0x0908		/* Register offset to immr */
+#define SWCNR_SWCN			0x0000FFFF	/* Software Watchdog Count mask */
+#define SWCNR_RES			~(SWCNR_SWCN)
+
+/* SWSRR - System Watchdog Service Register
+ */
+#define SWSRR				0x090E		/* Register offset to immr */
+
+/* ACR - Arbiter Configuration Register
+ */
+#define ACR_COREDIS			0x10000000	/* Core disable */
+#define ACR_COREDIS_SHIFT		(31-7)
+#define ACR_PIPE_DEP			0x00070000	/* Pipeline depth */
+#define ACR_PIPE_DEP_SHIFT		(31-15)
+#define ACR_PCI_RPTCNT			0x00007000	/* PCI repeat count */
+#define ACR_PCI_RPTCNT_SHIFT		(31-19)
+#define ACR_RPTCNT			0x00000700	/* Repeat count */
+#define ACR_RPTCNT_SHIFT		(31-23)
+#define ACR_APARK			0x00000030	/* Address parking */
+#define ACR_APARK_SHIFT			(31-27)
+#define ACR_PARKM			0x0000000F	/* Parking master */
+#define ACR_PARKM_SHIFT			(31-31)
+
+/* ATR - Arbiter Timers Register
+ */
+#define ATR_DTO				0x00FF0000	/* Data time out */
+#define ATR_ATO				0x000000FF	/* Address time out */
+
+/* AER - Arbiter Event Register
+ */
+#define AER_ETEA			0x00000020	/* Transfer error */
+#define AER_RES				0x00000010	/* Reserved transfer type */
+#define AER_ECW				0x00000008	/* External control word transfer type */
+#define AER_AO				0x00000004	/* Address Only transfer type */
+#define AER_DTO				0x00000002	/* Data time out */
+#define AER_ATO				0x00000001	/* Address time out */
+
+/* AEATR - Arbiter Event Address Register
+ */
+#define AEATR_EVENT			0x07000000	/* Event type */
+#define AEATR_MSTR_ID			0x001F0000	/* Master Id */
+#define AEATR_TBST			0x00000800	/* Transfer burst */
+#define AEATR_TSIZE			0x00000700	/* Transfer Size */
+#define AEATR_TTYPE			0x0000001F	/* Transfer Type */
+
+/* RSR - Reset Status Register
+ */
+#define RSR_SWSR			0x00002000	/* software soft reset */
+#define RSR_SWSR_SHIFT			13
+#define RSR_SWHR			0x00001000	/* software hard reset */
+#define RSR_SWHR_SHIFT			12
+#define RSR_JHRS			0x00000200	/* jtag hreset */
+#define RSR_JHRS_SHIFT			9
+#define RSR_JSRS			0x00000100	/* jtag sreset status */
+#define RSR_JSRS_SHIFT			8
+#define RSR_CSHR			0x00000010	/* checkstop reset status */
+#define RSR_CSHR_SHIFT			4
+#define RSR_SWRS			0x00000008	/* software watchdog reset status */
+#define RSR_SWRS_SHIFT			3
+#define RSR_BMRS			0x00000004	/* bus monitop reset status */
+#define RSR_BMRS_SHIFT			2
+#define RSR_SRS				0x00000002	/* soft reset status */
+#define RSR_SRS_SHIFT			1
+#define RSR_HRS				0x00000001	/* hard reset status */
+#define RSR_HRS_SHIFT			0
+#define RSR_RES				~(RSR_SWSR | RSR_SWHR |\
+					 RSR_JHRS | RSR_JSRS | RSR_CSHR | RSR_SWRS |\
+					 RSR_BMRS | RSR_SRS | RSR_HRS)
+/* RMR - Reset Mode Register
+ */
+#define RMR_CSRE			0x00000001	/* checkstop reset enable */
+#define RMR_CSRE_SHIFT			0
+#define RMR_RES				~(RMR_CSRE)
+
+/* RCR - Reset Control Register
+ */
+#define RCR_SWHR			0x00000002	/* software hard reset */
+#define RCR_SWSR			0x00000001	/* software soft reset */
+#define RCR_RES				~(RCR_SWHR | RCR_SWSR)
+
+/* RCER - Reset Control Enable Register
+ */
+#define RCER_CRE			0x00000001	/* software hard reset */
+#define RCER_RES			~(RCER_CRE)
+
+/* SPMR - System PLL Mode Register
+ */
+#define SPMR_SPMF			0x0F000000
+#define SPMR_SPMF_SHIFT			24
+#define SPMR_CPMF			0x000F0000
+#define SPMR_CPMF_SHIFT			16
+
+/* SCFR1 System Clock Frequency Register 1
+ */
+#define SCFR1_IPS_DIV			0x2
+#define SCFR1_IPS_DIV_MASK		0x03800000
+#define SCFR1_IPS_DIV_SHIFT		23
+
+/* SCFR2 System Clock Frequency Register 2
+ */
+#define SCFR2_SYS_DIV			0xFC000000
+#define SCFR2_SYS_DIV_SHIFT		26
+
+/* SCCR - System Clock Control Registers
+ */
+
+/* System Clock Control Register 1 commands */
+#define CLOCK_SCCR1_CFG_EN		0x80000000
+#define CLOCK_SCCR1_LPC_EN		0x40000000
+#define CLOCK_SCCR1_NFC_EN		0x20000000
+#define CLOCK_SCCR1_PATA_EN		0x10000000
+#define CLOCK_SCCR1_PSC_EN(cn)		(0x08000000 >> (cn))
+#define CLOCK_SCCR1_PSCFIFO_EN		0x00008000
+#define CLOCK_SCCR1_SATA_EN		0x00004000
+#define CLOCK_SCCR1_FEC_EN		0x00002000
+#define CLOCK_SCCR1_TPR_EN		0x00001000
+#define CLOCK_SCCR1_PCI_EN		0x00000800
+#define CLOCK_SCCR1_DDR_EN		0x00000400
+
+/* System Clock Control Register 2 commands */
+#define CLOCK_SCCR2_DIU_EN		0x80000000
+#define CLOCK_SCCR2_AXE_EN		0x40000000
+#define CLOCK_SCCR2_MEM_EN		0x20000000
+#define CLOCK_SCCR2_USB2_EN		0x10000000
+#define CLOCK_SCCR2_USB1_EN		0x08000000
+#define CLOCK_SCCR2_I2C_EN		0x04000000
+#define CLOCK_SCCR2_BDLC_EN		0x02000000
+#define CLOCK_SCCR2_SDHC_EN		0x01000000
+#define CLOCK_SCCR2_SPDIF_EN		0x00800000
+#define CLOCK_SCCR2_MBX_BUS_EN		0x00400000
+#define CLOCK_SCCR2_MBX_EN		0x00200000
+#define CLOCK_SCCR2_MBX_3D_EN		0x00100000
+#define CLOCK_SCCR2_IIM_EN		0x00080000
+
+/* PSC FIFO Command values */
+#define PSC_FIFO_RESET_SLICE		0x80
+#define PSC_FIFO_ENABLE_SLICE		0x01
+
+/* PSC FIFO Controller Command values */
+#define FIFOC_ENABLE_CLOCK_GATE		0x01
+#define FIFOC_DISABLE_CLOCK_GATE	0x00
+
+/* PSC FIFO status */
+#define PSC_FIFO_EMPTY			0x01
+
+/* PSC Command values */
+#define PSC_RX_ENABLE		0x01
+#define PSC_RX_DISABLE		0x02
+#define PSC_TX_ENABLE		0x04
+#define PSC_TX_DISABLE		0x08
+#define PSC_SEL_MODE_REG_1	0x10
+#define PSC_RST_RX		0x20
+#define PSC_RST_TX		0x30
+#define PSC_RST_ERR_STAT	0x40
+#define PSC_RST_BRK_CHG_INT	0x50
+#define PSC_START_BRK		0x60
+#define PSC_STOP_BRK		0x70
+
+/* PSC status register bits */
+#define PSC_SR_CDE		0x0080
+#define PSC_SR_TXEMP		0x0800
+#define PSC_SR_OE		0x1000
+#define PSC_SR_PE		0x2000
+#define PSC_SR_FE		0x4000
+#define PSC_SR_RB		0x8000
+
+/* PSC mode fields */
+#define PSC_MODE_5_BITS		0x00
+#define PSC_MODE_6_BITS		0x01
+#define PSC_MODE_7_BITS		0x02
+#define PSC_MODE_8_BITS		0x03
+#define PSC_MODE_PAREVEN	0x00
+#define PSC_MODE_PARODD		0x04
+#define PSC_MODE_PARFORCE	0x08
+#define PSC_MODE_PARNONE	0x10
+#define PSC_MODE_ENTIMEOUT	0x20
+#define PSC_MODE_RXRTS		0x80
+#define PSC_MODE_1_STOPBIT	0x07
+
+/*
+ * Centralized FIFO Controller has internal memory for all 12 PSCs FIFOs
+ *
+ * NOTE: individual PSC units are free to use whatever area (and size) of the
+ * FIFOC internal memory, so make sure memory areas for FIFO slices used by
+ * different PSCs do not overlap!
+ *
+ * Overall size of FIFOC memory is not documented in the MPC5121e RM, but
+ * tests indicate that it is 1024 words total.
+ */
+#define FIFOC_PSC0_TX_SIZE	0x0	/* number of 4-byte words for FIFO slice */
+#define FIFOC_PSC0_TX_ADDR	0x0
+#define FIFOC_PSC0_RX_SIZE	0x0
+#define FIFOC_PSC0_RX_ADDR	0x0
+
+#define FIFOC_PSC1_TX_SIZE	0x0
+#define FIFOC_PSC1_TX_ADDR	0x0
+#define FIFOC_PSC1_RX_SIZE	0x0
+#define FIFOC_PSC1_RX_ADDR	0x0
+
+#define FIFOC_PSC2_TX_SIZE	0x0
+#define FIFOC_PSC2_TX_ADDR	0x0
+#define FIFOC_PSC2_RX_SIZE	0x0
+#define FIFOC_PSC2_RX_ADDR	0x0
+
+#define FIFOC_PSC3_TX_SIZE	0x04
+#define FIFOC_PSC3_TX_ADDR	0x0
+#define FIFOC_PSC3_RX_SIZE	0x04
+#define FIFOC_PSC3_RX_ADDR	0x10
+
+#define FIFOC_PSC4_TX_SIZE	0x0
+#define FIFOC_PSC4_TX_ADDR	0x0
+#define FIFOC_PSC4_RX_SIZE	0x0
+#define FIFOC_PSC4_RX_ADDR	0x0
+
+#define FIFOC_PSC5_TX_SIZE	0x0
+#define FIFOC_PSC5_TX_ADDR	0x0
+#define FIFOC_PSC5_RX_SIZE	0x0
+#define FIFOC_PSC5_RX_ADDR	0x0
+
+#define FIFOC_PSC6_TX_SIZE	0x0
+#define FIFOC_PSC6_TX_ADDR	0x0
+#define FIFOC_PSC6_RX_SIZE	0x0
+#define FIFOC_PSC6_RX_ADDR	0x0
+
+#define FIFOC_PSC7_TX_SIZE	0x0
+#define FIFOC_PSC7_TX_ADDR	0x0
+#define FIFOC_PSC7_RX_SIZE	0x0
+#define FIFOC_PSC7_RX_ADDR	0x0
+
+#define FIFOC_PSC8_TX_SIZE	0x0
+#define FIFOC_PSC8_TX_ADDR	0x0
+#define FIFOC_PSC8_RX_SIZE	0x0
+#define FIFOC_PSC8_RX_ADDR	0x0
+
+#define FIFOC_PSC9_TX_SIZE	0x0
+#define FIFOC_PSC9_TX_ADDR	0x0
+#define FIFOC_PSC9_RX_SIZE	0x0
+#define FIFOC_PSC9_RX_ADDR	0x0
+
+#define FIFOC_PSC10_TX_SIZE	0x0
+#define FIFOC_PSC10_TX_ADDR	0x0
+#define FIFOC_PSC10_RX_SIZE	0x0
+#define FIFOC_PSC10_RX_ADDR	0x0
+
+#define FIFOC_PSC11_TX_SIZE	0x0
+#define FIFOC_PSC11_TX_ADDR	0x0
+#define FIFOC_PSC11_RX_SIZE	0x0
+#define FIFOC_PSC11_RX_ADDR	0x0
+
+/* IO Control Register
+ */
+
+/* Indexes in regs array */
+#define MEM_IDX			0x00
+#define SPDIF_TXCLOCK_IDX	0x73
+#define SPDIF_TX_IDX		0x74
+#define SPDIF_RX_IDX		0x75
+#define PSC0_0_IDX		0x83
+#define PSC0_1_IDX		0x84
+#define PSC0_2_IDX		0x85
+#define PSC0_3_IDX		0x86
+#define PSC0_4_IDX		0x87
+#define PSC1_0_IDX		0x88
+#define PSC1_1_IDX		0x89
+#define PSC1_2_IDX		0x8a
+#define PSC1_3_IDX		0x8b
+#define PSC1_4_IDX		0x8c
+#define PSC2_0_IDX		0x8d
+#define PSC2_1_IDX		0x8e
+#define PSC2_2_IDX		0x8f
+#define PSC2_3_IDX		0x90
+#define PSC2_4_IDX		0x91
+
+#define IOCTRL_FUNCMUX_SHIFT	7
+#define IOCTRL_FUNCMUX_FEC	1
+#define IOCTRL_MUX_FEC		(IOCTRL_FUNCMUX_FEC << IOCTRL_FUNCMUX_SHIFT)
+
+/* Set for DDR */
+#define IOCTRL_MUX_DDR		0x00000036
+
+ /* Register Offset Base */
+#define MPC512X_FEC		(CFG_IMMR + 0x02800)
+
+/* Number of I2C buses */
+#define I2C_BUS_CNT	3
+
+/* I2Cn control register bits */
+#define I2C_EN		0x80
+#define I2C_IEN		0x40
+#define I2C_STA		0x20
+#define I2C_TX		0x10
+#define I2C_TXAK	0x08
+#define I2C_RSTA	0x04
+#define I2C_INIT_MASK	(I2C_EN | I2C_STA | I2C_TX | I2C_RSTA)
+
+/* I2Cn status register bits */
+#define I2C_CF		0x80
+#define I2C_AAS		0x40
+#define I2C_BB		0x20
+#define I2C_AL		0x10
+#define I2C_SRW		0x04
+#define I2C_IF		0x02
+#define I2C_RXAK	0x01
+
+#endif	/* __MPC512X_H__ */