[ARM] 2918/1: [update] Base port of Comdial MP1000 platfrom

Patch from Jon Ringle

Updated 2898/1 per comments:
- Removed fixup
- Moved code in mach-mp1000/ to mach-clps711x/
- Cleaned up code in mp1000-seprom.c. Eliminated code that displayed the contents of the eeprom
Please comment.

Signed-off-by: Jon Ringle
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/Kconfig

@@ -687,7 +687,8 @@ source "drivers/acorn/block/Kconfig"
 
 if PCMCIA || ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX \
 	|| ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
-	|| ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE
+	|| ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
+	|| MACH_MP1000
 source "drivers/ide/Kconfig"
 endif
 

arch/arm/boot/compressed/head.S

@@ -39,7 +39,8 @@
     defined(CONFIG_ARCH_IXP4XX) || \
     defined(CONFIG_ARCH_IXP2000) || \
     defined(CONFIG_ARCH_LH7A40X) || \
-    defined(CONFIG_ARCH_OMAP)
+    defined(CONFIG_ARCH_OMAP) || \
+    defined(CONFIG_MACH_MP1000)
 		.macro	loadsp,	rb
 		addruart \rb
 		.endm

arch/arm/mach-clps711x/Kconfig

@@ -69,6 +69,17 @@ config EP72XX_ROM_BOOT
 
 	  You almost surely want to say N here.
 
+config MACH_MP1000
+	bool "MACH_MP1000"
+	help
+	  Say Y if you intend to run the kernel on the Comdial MP1000 platform.
+
+config MP1000_90MHZ
+	bool "MP1000_90MHZ"
+	depends on MACH_MP1000
+	help
+	  Say Y if you have the MP1000 configured to be set at 90MHZ rather than 74MHZ
+
 endmenu
 
 endif

arch/arm/mach-clps711x/Makefile

@@ -15,6 +15,7 @@ obj-$(CONFIG_ARCH_CDB89712) += cdb89712.o
 obj-$(CONFIG_ARCH_CLEP7312) += clep7312.o
 obj-$(CONFIG_ARCH_EDB7211)  += edb7211-arch.o edb7211-mm.o
 obj-$(CONFIG_ARCH_FORTUNET) += fortunet.o
+obj-$(CONFIG_MACH_MP1000)   += mp1000-mach.o mp1000-mm.o mp1000-seprom.o
 obj-$(CONFIG_ARCH_P720T)    += p720t.o
 leds-$(CONFIG_ARCH_P720T)   += p720t-leds.o
 obj-$(CONFIG_LEDS)          += $(leds-y)

arch/arm/mach-clps711x/mp1000-mach.c

+/*
+ *  linux/arch/arm/mach-mp1000/mp1000.c
+ *
+ *  Copyright (C) 2005 Comdial Corporation
+ *
+ * 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
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/string.h>
+
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/arch/mp1000-seprom.h>
+
+#include "common.h"
+
+extern void mp1000_map_io(void);
+
+static void __init mp1000_init(void)
+{
+    seprom_init();
+}
+
+MACHINE_START(MP1000, "Comdial MP1000")
+	/* Maintainer: Jon Ringle */
+	.phys_ram	= 0xc0000000,
+	.phys_io	= 0x80000000,
+	.io_pg_offst	= ((0xff000000) >> 18) & 0xfffc,
+	.boot_params	= 0xc0015100,
+	.map_io		= mp1000_map_io,
+	.init_irq	= clps711x_init_irq,
+	.init_machine	= mp1000_init,
+	.timer		= &clps711x_timer,
+MACHINE_END
+

arch/arm/mach-clps711x/mp1000-mm.c

+/*
+ *  linux/arch/arm/mach-mp1000/mm.c
+ *
+ *  Extra MM routines for the MP1000
+ *
+ *  Copyright (C) 2005 Comdial Corporation
+ *
+ * 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
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/sizes.h>
+
+#include <asm/mach/map.h>
+
+extern void clps711x_map_io(void);
+
+static struct map_desc mp1000_io_desc[] __initdata = {
+    { MP1000_EIO_BASE,	MP1000_EIO_START,	MP1000_EIO_SIZE, MT_DEVICE },
+    { MP1000_FIO_BASE,	MP1000_FIO_START,	MP1000_FIO_SIZE, MT_DEVICE },
+    { MP1000_LIO_BASE,	MP1000_LIO_START,	MP1000_LIO_SIZE, MT_DEVICE },
+    { MP1000_NIO_BASE,	MP1000_NIO_START,	MP1000_NIO_SIZE, MT_DEVICE },
+    { MP1000_IDE_BASE,	MP1000_IDE_START,	MP1000_IDE_SIZE, MT_DEVICE },
+    { MP1000_DSP_BASE,	MP1000_DSP_START,	MP1000_DSP_SIZE, MT_DEVICE }
+};
+
+void __init mp1000_map_io(void)
+{
+	clps711x_map_io();
+	iotable_init(mp1000_io_desc, ARRAY_SIZE(mp1000_io_desc));
+}

arch/arm/mach-clps711x/mp1000-seprom.c

+/*`
+ * mp1000-seprom.c
+ *
+ *  This file contains the Serial EEPROM code for the MP1000 board
+ *
+ *  Copyright (C) 2005 Comdial Corporation
+ *
+ * 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
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/hardware.h>
+#include <asm/hardware/clps7111.h>
+#include <asm/arch/mp1000-seprom.h>
+
+/* If SepromInit() can initialize and checksum the seprom successfully, */
+/* then it will point seprom_data_ptr at the shadow copy.  */
+
+static eeprom_struct seprom_data;			/* shadow copy of seprom content */
+
+eeprom_struct *seprom_data_ptr = 0;		/* 0 => not initialized */
+
+/*
+ * Port D Bit 5 is Chip Select for EEPROM
+ * Port E Bit 0 is Input, Data out from EEPROM
+ * Port E Bit 1 is Output, Data in to EEPROM
+ * Port E Bit 2 is Output, CLK to EEPROM
+ */
+
+static char *port_d_ptr = (char *)(CLPS7111_VIRT_BASE + PDDR);
+static char *port_e_ptr = (char *)(CLPS7111_VIRT_BASE + PEDR);
+
+#define NO_OF_SHORTS	64	// Device is 64 x 16 bits
+#define ENABLE_RW	0
+#define DISABLE_RW	1
+
+static inline void toggle_seprom_clock(void)
+{
+	*port_e_ptr |= HwPortESepromCLK;
+	*port_e_ptr &= ~(HwPortESepromCLK);
+}
+
+static inline void select_eeprom(void)
+{
+	*port_d_ptr |= HwPortDEECS;
+	*port_e_ptr &= ~(HwPortESepromCLK);
+}
+
+static inline void deselect_eeprom(void)
+{
+	*port_d_ptr &= ~(HwPortDEECS);
+	*port_e_ptr &= ~(HwPortESepromDIn);
+}
+
+/*
+ * GetSepromDataPtr - returns pointer to shadow (RAM) copy of seprom
+ *                    and returns 0 if seprom is not initialized or
+ *                    has a checksum error.
+ */
+
+eeprom_struct* get_seprom_ptr(void)
+{
+	return seprom_data_ptr;
+}
+
+unsigned char* get_eeprom_mac_address(void)
+{
+	return seprom_data_ptr->variant.eprom_struct.mac_Address;
+}
+
+/*
+ * ReadSProm, Physically reads data from the Serial PROM
+ */
+static void read_sprom(short address, int length, eeprom_struct *buffer)
+{
+	short data = COMMAND_READ | (address & 0x3F);
+	short bit;
+	int i;
+
+	select_eeprom();
+
+	// Clock in 9 bits of the command
+	for (i = 0, bit = 0x100; i < 9; i++, bit >>= 1) {
+		if (data & bit)
+			*port_e_ptr |= HwPortESepromDIn;
+		else
+			*port_e_ptr &= ~(HwPortESepromDIn);
+
+		toggle_seprom_clock();
+	}
+
+	//
+	// Now read one or more shorts of data from the Seprom
+	//
+	while (length-- > 0) {
+		data = 0;
+
+		// Read 16 bits at a time
+		for (i = 0; i < 16; i++) {
+			data <<= 1;
+			toggle_seprom_clock();
+			data |= *port_e_ptr & HwPortESepromDOut;
+
+		}
+
+		buffer->variant.eprom_short_data[address++] = data;
+	}
+
+	deselect_eeprom();
+
+	return;
+}
+
+
+
+/*
+ * ReadSerialPROM
+ *
+ * Input: Pointer to array of 64 x 16 Bits
+ *
+ * Output: if no problem reading data is filled in
+ */
+static void read_serial_prom(eeprom_struct *data)
+{
+	read_sprom(0, 64, data);
+}
+
+
+//
+// Compute Serial EEPROM checksum
+//
+// Input: Pointer to struct with Eprom data
+//
+// Output: The computed Eprom checksum
+//
+static short compute_seprom_checksum(eeprom_struct *data)
+{
+	short checksum = 0;
+	int i;
+
+	for (i = 0; i < 126; i++) {
+		checksum += (short)data->variant.eprom_byte_data[i];
+	}
+
+	return((short)(0x5555 - (checksum & 0xFFFF)));
+}
+
+//
+// Make sure the data port bits for the SEPROM are correctly initialised
+//
+
+void __init seprom_init(void)
+{
+	short checksum;
+
+	// Init Port D
+	*(char *)(CLPS7111_VIRT_BASE + PDDDR) = 0x0;
+	*(char *)(CLPS7111_VIRT_BASE + PDDR) = 0x15;
+
+	// Init Port E
+	*(int *)(CLPS7111_VIRT_BASE + PEDDR) = 0x06;
+	*(int *)(CLPS7111_VIRT_BASE + PEDR) = 0x04;
+
+	//
+	// Make sure that EEPROM struct size never exceeds 128 bytes
+	//
+	if (sizeof(eeprom_struct) > 128) {
+		panic("Serial PROM struct size > 128, aborting read\n");
+	}
+
+	read_serial_prom(&seprom_data);
+
+	checksum = compute_seprom_checksum(&seprom_data);
+
+	if (checksum != seprom_data.variant.eprom_short_data[63]) {
+		panic("Serial EEPROM checksum failed\n");
+	}
+
+	seprom_data_ptr = &seprom_data;
+}
+

drivers/serial/clps711x.c

@@ -408,7 +408,11 @@ static struct uart_port clps711x_ports[UART_NR] = {
 	{
 		.iobase		= SYSCON1,
 		.irq		= IRQ_UTXINT1, /* IRQ_URXINT1, IRQ_UMSINT */
+#ifdef CONFIG_MP1000_90MHZ
+		.uartclk	= 4515840,
+#else
 		.uartclk	= 3686400,
+#endif
 		.fifosize	= 16,
 		.ops		= &clps711x_pops,
 		.line		= 0,
@@ -417,7 +421,11 @@ static struct uart_port clps711x_ports[UART_NR] = {
 	{
 		.iobase		= SYSCON2,
 		.irq		= IRQ_UTXINT2, /* IRQ_URXINT2 */
+#ifdef CONFIG_MP1000_90MHZ
+		.uartclk	= 4515840,
+#else
 		.uartclk	= 3686400,
+#endif
 		.fifosize	= 16,
 		.ops		= &clps711x_pops,
 		.line		= 1,
@@ -551,6 +559,7 @@ console_initcall(clps711xuart_console_init);
 static struct uart_driver clps711x_reg = {
 	.driver_name		= "ttyCL",
 	.dev_name		= "ttyCL",
+	.devfs_name		= "ttyCL",
 	.major			= SERIAL_CLPS711X_MAJOR,
 	.minor			= SERIAL_CLPS711X_MINOR,
 	.nr			= UART_NR,

include/asm-arm/arch-clps711x/hardware.h

@@ -235,4 +235,121 @@
 #define CEIVA_PB0_BLK_BTN	(1<<0)
 #endif // #if defined (CONFIG_ARCH_CEIVA)
 
+#if defined (CONFIG_MACH_MP1000)
+/* NOR FLASH */
+#define MP1000_NIO_BASE		0xf9000000	/* virtual */
+#define MP1000_NIO_START	CS0_PHYS_BASE	/* physical */
+#define MP1000_NIO_SIZE		0x00400000
+
+/* DSP Interface */
+#define MP1000_DSP_BASE		0xfa000000	/* virtual */
+#define MP1000_DSP_START	CS1_PHYS_BASE	/* physical */
+#define MP1000_DSP_SIZE		0x00100000
+
+/* LCD, DAA/DSP, RTC, DAA RW Reg all in CS2 */
+#define MP1000_LIO_BASE		0xfb000000	/* virtual */
+#define MP1000_LIO_START	CS2_PHYS_BASE	/* physical */
+#define MP1000_LIO_SIZE		0x00100000
+
+/* NAND FLASH */
+#define MP1000_FIO_BASE		0xfc000000	/* virtual */
+#define MP1000_FIO_START	CS3_PHYS_BASE	/* physical */
+#define MP1000_FIO_SIZE		0x00800000
+
+/* Ethernet */
+#define MP1000_EIO_BASE		0xfd000000	/* virtual 	*/
+#define MP1000_EIO_START	CS4_PHYS_BASE	/* physical 	*/
+#define MP1000_EIO_SIZE		0x00100000
+
+#define	MP1000_LCD_OFFSET	0x00000000	/* LCD offset in CS2 */
+#define	MP1000_DDD_OFFSET	0x00001000	/* DAA/DAI/DSP sft reset offst*/
+#define	MP1000_RTC_OFFSET	0x00002000	/* RTC offset in CS2 */
+#define	MP1000_DAA_OFFSET	0x00003000	/* DAA RW reg offset in CS2 */
+
+/* IDE */
+#define MP1000_IDE_BASE		0xfe000000      /* virtual */
+#define MP1000_IDE_START	CS5_PHYS_BASE      /* physical */
+#define MP1000_IDE_SIZE		0x00100000      /* actually it's only 0x1000 */
+
+#define IRQ_HARDDISK IRQ_EINT2
+
+/*
+ * IDE registers definition
+ */
+
+#define IDE_CONTROL_BASE		(MP1000_IDE_BASE + 0x1000)
+#define IDE_BASE_OFF			(MP1000_IDE_BASE)
+
+#define IDE_WRITE_DEVICE_DATA		(IDE_BASE_OFF + 0x0)
+#define IDE_FEATURES_REGISTER		(IDE_BASE_OFF + 0x2)
+#define IDE_SECTOR_COUNT_REGISTER	(IDE_BASE_OFF + 0x4)
+#define IDE_SECTOR_NUMBER_REGISTER	(IDE_BASE_OFF + 0x6)
+#define IDE_CYLINDER_LOW_REGISTER	(IDE_BASE_OFF + 0x8)
+#define IDE_CYLINDER_HIGH_REGISTER	(IDE_BASE_OFF + 0xa)
+#define IDE_DEVICE_HEAD_REGISTER	(IDE_BASE_OFF + 0xc)
+#define IDE_COMMAND_DATA_REGISTER	(IDE_BASE_OFF + 0xe)
+#define IDE_DEVICE_CONTROL_REGISTER	(IDE_CONTROL_BASE + 0xc)
+
+#define IDE_IRQ                      IRQ_EINT2
+
+
+#define RTC_PORT(x)	(MP1000_LIO_BASE+0x2000 + (x*2))
+#define RTC_ALWAYS_BCD	0
+
+/*
+// Definitions of the bit fields in the HwPortA register for the
+// MP1000 board.
+*/
+#define HwPortAKeyboardRow1                     0x00000001
+#define HwPortAKeyboardRow2                     0x00000002
+#define HwPortAKeyboardRow3                     0x00000004
+#define HwPortAKeyboardRow4                     0x00000008
+#define HwPortAKeyboardRow5                     0x00000010
+#define HwPortAKeyboardRow6                     0x00000020
+#define HwPortALCDEnable                        0x00000040
+#define HwPortAOffhook	                        0x00000080
+
+/*
+// Definitions of the bit fields in the HwPortB register for the
+// MP1000 board.
+*/
+#define HwPortBL3Mode                           0x00000001
+#define HwPortBL3Clk                            0x00000002
+#define HwPortBSClk                             0x00000001
+#define HwPortBSData                            0x00000002
+#define HwPortBL3Data                           0x00000004
+#define HwPortBMute                             0x00000008
+#define HwPortBQD0                              0x00000010
+#define HwPortBQD1                              0x00000020
+#define HwPortBQD2                              0x00000040
+#define HwPortBQD3                              0x00000080
+
+/*
+// Definitions of the bit fields in the HwPortD register for the
+// MP1000 board.
+*/
+#define HwPortDLED1                             0x00000001
+#define HwPortDLED2                             0x00000002
+#define HwPortDLED3                             0x00000004
+#define HwPortDLED4                             0x00000008
+#define HwPortDLED5                             0x00000010
+#define HwPortDEECS                             0x00000020
+#define HwPortBRTS                              0x00000040
+#define HwPortBRI                               0x00000080
+
+
+/*
+// Definitions of the bit fields in the HwPortE register for the
+// MP1000 board.
+*/
+
+#define HwPortECLE                              0x00000001
+#define HwPortESepromDOut                       0x00000001
+#define HwPortEALE                              0x00000002
+#define HwPortESepromDIn                        0x00000002
+#define HwPortENANDCS                           0x00000004
+#define HwPortESepromCLK                        0x00000004
+
+#endif // #if defined (CONFIG_MACH_MP1000)
+
 #endif

include/asm-arm/arch-clps711x/mp1000-seprom.h

+#ifndef MP1000_SEPROM_H
+#define MP1000_SEPROM_H
+
+/*
+ * mp1000-seprom.h
+ *
+ *
+ *  This file contains the Serial EEPROM definitions for the MP1000 board
+ *
+ *  Copyright (C) 2005 Comdial Corporation
+ *
+ * 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
+ *
+ */
+
+#define COMMAND_ERASE		(0x1C0)
+#define COMMAND_ERASE_ALL	(0x120)
+#define COMMAND_WRITE_DISABLE	(0x100)
+#define COMMAND_WRITE_ENABLE	(0x130)
+#define COMMAND_READ		(0x180)
+#define COMMAND_WRITE		(0x140)
+#define COMMAND_WRITE_ALL	(0x110)
+
+//
+// Serial EEPROM data format
+//
+
+#define PACKED __attribute__ ((packed))
+
+typedef struct _EEPROM {
+	union {
+		unsigned char eprom_byte_data[128];
+		unsigned short eprom_short_data[64];
+		struct {
+			unsigned char version PACKED;	// EEPROM Version "1" for now
+			unsigned char box_id PACKED; 	// Box ID (Standalone, SOHO, embedded, etc)
+			unsigned char major_hw_version PACKED;	// Major Hardware version (Hex)
+			unsigned char minor_hw_version PACKED;	// Minor Hardware Version (Hex)
+			unsigned char mfg_id[3] PACKED;	// Manufacturer ID (3 character Alphabetic)
+			unsigned char mfg_serial_number[10] PACKED;	// Manufacturer Serial number
+			unsigned char mfg_date[3] PACKED;	// Date of Mfg (Formatted YY:MM:DD)
+			unsigned char country PACKED;	// Country of deployment
+			unsigned char mac_Address[6] PACKED;	// MAC Address
+			unsigned char oem_string[20] PACKED;	// OEM ID string
+			unsigned short feature_bits1 PACKED;	// Feature Bits 1
+			unsigned short feature_bits2 PACKED;	// Feature Bits 2
+			unsigned char filler[75] PACKED;		// Unused/Undefined	0 initialized
+			unsigned short checksum PACKED;		// byte accumulated short checksum
+		} eprom_struct;
+	} variant;
+}  eeprom_struct;
+
+/* These settings must be mutually exclusive */
+#define	FEATURE_BITS1_DRAMSIZE_16MEG	0x0001  /* 0 signifies 4 MEG system */
+#define	FEATURE_BITS1_DRAMSIZE_8MEG	0x0002  /* 1 in bit 1 = 8MEG system */
+#define	FEATURE_BITS1_DRAMSIZE_64MEG	0x0004  /* 1 in bit 2 = 64MEG system */
+
+#define FEATURE_BITS1_CPUIS90MEG     0x0010
+
+extern void seprom_init(void);
+extern eeprom_struct* get_seprom_ptr(void);
+extern unsigned char* get_eeprom_mac_address(void);
+
+#endif /* MP1000_SEPROM_H */
+