powerpc/p2041rdb: Add p2041rdb board support

P2041RDB Specification:
-----------------------
Memory subsystem:
 * 4Gbyte unbuffered DDR3 SDRAM SO-DIMM(64bit bus)
 * 128 Mbyte NOR flash single-chip memory
 * 256 Kbit M24256 I2C EEPROM
 * 16 Mbyte SPI memory
 * SD connector to interface with the SD memory card

Ethernet:
 * dTSEC1: connected to the Vitesse SGMII PHY (VSC8221)
 * dTSEC2: connected to the Vitesse SGMII PHY (VSC8221)
 * dTSEC3: connected to the Vitesse SGMII PHY (VSC8221)
 * dTSEC4: connected to the Vitesse RGMII PHY (VSC8641)
 * dTSEC5: connected to the Vitesse RGMII PHY (VSC8641)

PCIe:
 * Lanes E, F, G and H of Bank1 are connected to one x4 PCIe SLOT1
 * Lanes C and Land D of Bank2 are connected to one x4 PCIe SLOT2

SATA: Lanes C and Land D of Bank2 are connected to two SATA connectors

USB 2.0: connected via a internal UTMI PHY to two TYPE-A interfaces

I2C:
 * I2C1: Real time clock, Temperature sensor, Memory module
 * I2C2: Vcore Regulator, 256Kbit I2C Bus EEPROM, PCIe slot1/2

UART: supports two UARTs up to 115200 bps for console

Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/board/freescale/p2041rdb/cpld.h b/board/freescale/p2041rdb/cpld.h
new file mode 100644
index 0000000..3b24cb0
--- /dev/null
+++ b/board/freescale/p2041rdb/cpld.h
@@ -0,0 +1,53 @@
+/**
+ * Copyright 2011 Freescale Semiconductor
+ * Author: Mingkai Hu <Mingkai.hu@freescale.com>
+ *
+ * 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 file provides support for the ngPIXIS, a board-specific FPGA used on
+ * some Freescale reference boards.
+ */
+
+/*
+ * CPLD register set. Feel free to add board-specific #ifdefs where necessary.
+ */
+typedef struct cpld_data {
+	u8 cpld_ver;		/* 0x0 - CPLD Major Revision Register */
+	u8 cpld_ver_sub;	/* 0x1 - CPLD Minor Revision Register */
+	u8 pcba_ver;		/* 0x2 - PCBA Revision Register */
+	u8 system_rst;		/* 0x3 - system reset register */
+	u8 wd_cfg;		/* 0x4 - Watchdog Period Setting Register */
+	u8 sw_ctl_on;		/* 0x5 - Switch Control Enable Register */
+	u8 por_cfg;		/* 0x6 - POR Control Register */
+	u8 switch_strobe;	/* 0x7 - Multiplexed pin Select Register */
+	u8 jtag_sel;		/* 0x8 - JTAG or AURORA Selection */
+	u8 sdbank1_clk;		/* 0x9 - SerDes Bank1 Reference clock */
+	u8 sdbank2_clk;		/* 0xa - SerDes Bank2 Reference clock */
+	u8 fbank_sel;		/* 0xb - Flash bank selection */
+	u8 serdes_mux;		/* 0xc - Multiplexed pin Select Register */
+	u8 sw[1];		/* 0xd - SW2 Status */
+} __attribute__ ((packed)) cpld_data_t;
+
+#define SERDES_MUX_LANE_6_MASK	0x2
+#define SERDES_MUX_LANE_6_SHIFT	1
+#define SERDES_MUX_LANE_A_MASK	0x1
+#define SERDES_MUX_LANE_A_SHIFT	0
+#define SERDES_MUX_LANE_C_MASK	0x4
+#define SERDES_MUX_LANE_C_SHIFT	2
+#define SERDES_MUX_LANE_D_MASK	0x8
+#define SERDES_MUX_LANE_D_SHIFT	3
+
+/* Pointer to the CPLD register set */
+#define cpld ((cpld_data_t *)CPLD_BASE)
+
+/* The CPLD SW register that corresponds to board switch X, where x >= 1 */
+#define CPLD_SW(x)		(cpld->sw[(x) - 2])
+
+u8 cpld_read(unsigned int reg);
+void cpld_write(unsigned int reg, u8 value);
+
+#define CPLD_READ(reg) cpld_read(offsetof(cpld_data_t, reg))
+#define CPLD_WRITE(reg, value) cpld_write(offsetof(cpld_data_t, reg), value)