board/esd/mecp5123/mecp5123.c - uboot/armada - Git at Google

 /*
  * (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
  * (C) Copyright 2009 Dave Srl www.dave.eu
  * (C) Copyright 2009 Stefan Roese <sr@denx.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
  *
  */

 #include <common.h>
 #include <asm/bitops.h>
 #include <command.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/mpc512x.h>
 #include <fdt_support.h>

 DECLARE_GLOBAL_DATA_PTR;

 /* Clocks in use */
 #define SCCR1_CLOCKS_EN	(CLOCK_SCCR1_CFG_EN |				\
 			 CLOCK_SCCR1_LPC_EN |				\
 			 CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) |	\
 			 CLOCK_SCCR1_PSCFIFO_EN |			\
 			 CLOCK_SCCR1_DDR_EN |				\
 			 CLOCK_SCCR1_FEC_EN |				\
 			 CLOCK_SCCR1_NFC_EN |				\
 			 CLOCK_SCCR1_PCI_EN |				\
 			 CLOCK_SCCR1_TPR_EN)

 #define SCCR2_CLOCKS_EN	(CLOCK_SCCR2_MEM_EN |	\
 			 CLOCK_SCCR2_I2C_EN)

 int eeprom_write_enable(unsigned dev_addr, int state)
 {
 	volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;

 	if (dev_addr != CONFIG_SYS_I2C_EEPROM_ADDR)
 		return -1;

 	if (state == 0)
 		setbits_be32(&im->gpio.gpdat, 0x00100000);
 	else
 		clrbits_be32(&im->gpio.gpdat, 0x00100000);

 	return 0;
 }

 int board_early_init_f(void)
 {
 	volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
 	u32 spridr;
 	int i;

 	/*
 	 * Initialize Local Window for NOR FLASH access
 	 */
 	out_be32(&im->sysconf.lpcs0aw,
 		 CSAW_START(CONFIG_SYS_FLASH_BASE) |
 		 CSAW_STOP(CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE));
 	sync_law(&im->sysconf.lpcs0aw);

 	/*
 	 * Initialize Local Window for boot access
 	 */
 	out_be32(&im->sysconf.lpbaw,
 		 CSAW_START(0xffb00000) | CSAW_STOP(0xffb00000, 0x00010000));
 	sync_law(&im->sysconf.lpbaw);

 	/*
 	 * Initialize Local Window for VPC3 access
 	 */
 	out_be32(&im->sysconf.lpcs1aw,
 		 CSAW_START(CONFIG_SYS_VPC3_BASE) |
 		 CSAW_STOP(CONFIG_SYS_VPC3_BASE, CONFIG_SYS_VPC3_SIZE));
 	sync_law(&im->sysconf.lpcs1aw);

 	/*
 	 * Configure Flash Speed
 	 */
 	out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG);

 	/*
 	 * Configure VPC3 Speed
 	 */
 	out_be32(&im->lpc.cs_cfg[1], CONFIG_SYS_CS1_CFG);

 	spridr = in_be32(&im->sysconf.spridr);
 	if (SVR_MJREV(spridr) >= 2)
 		out_be32(&im->lpc.altr, CONFIG_SYS_CS_ALETIMING);

 	/*
 	 * Enable clocks
 	 */
 	out_be32(&im->clk.sccr[0], SCCR1_CLOCKS_EN);
 	out_be32(&im->clk.sccr[1], SCCR2_CLOCKS_EN);
 #if defined(CONFIG_IIM) || defined(CONFIG_CMD_FUSE)
 	setbits_be32(&im->clk.sccr[1], CLOCK_SCCR2_IIM_EN);
 #endif

 	/*
 	 * Configure MSCAN clocks
 	 */
 	for (i=0; i<4; ++i) {
 		out_be32(&im->clk.msccr[i], 0x00300000);
 		out_be32(&im->clk.msccr[i], 0x00310000);
 	}

 	/*
 	 * Configure GPIO's
 	 */
 	clrbits_be32(&im->gpio.gpodr, 0x000000e0);
 	clrbits_be32(&im->gpio.gpdir, 0x00ef0000);
 	setbits_be32(&im->gpio.gpdir, 0x001000e0);
 	setbits_be32(&im->gpio.gpdat, 0x00100000);

 	return 0;
 }

 phys_size_t initdram(int board_type)
 {
 	return get_ram_size(0, fixed_sdram(NULL, NULL, 0));
 }

 int misc_init_r(void)
 {
 	volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
 	u32 val;

 	/*
 	 * Optimize access to profibus chip (VPC3) on the local bus
 	 */

 	/*
 	 * Select 1:1 for LPC_DIV
 	 */
 	val = in_be32(&im->clk.scfr[0]) & ~SCFR1_LPC_DIV_MASK;
 	out_be32(&im->clk.scfr[0], val | (0x1 << SCFR1_LPC_DIV_SHIFT));

 	/*
 	 * Configure LPC Chips Select Deadcycle Control Register
 	 * CS0 - device can drive data 2 clock cycle(s) after CS deassertion
 	 * CS1 - device can drive data 1 clock cycle(s) after CS deassertion
 	 */
 	clrbits_be32(&im->lpc.cs_dccr, 0x000000ff);
 	setbits_be32(&im->lpc.cs_dccr, (0x00 << 4) | (0x01 << 0));

 	/*
 	 * Configure LPC Chips Select Holdcycle Control Register
 	 * CS0 - data is valid 2 clock cycle(s) after CS deassertion
 	 * CS1 - data is valid 1 clock cycle(s) after CS deassertion
 	 */
 	clrbits_be32(&im->lpc.cs_hccr, 0x000000ff);
 	setbits_be32(&im->lpc.cs_hccr, (0x00 << 4) | (0x01 << 0));

 	return 0;
 }

 static iopin_t ioregs_init[] = {
 	/* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
 	{
 		offsetof(struct ioctrl512x, io_control_spdif_txclk), 3, 0,
 		IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	},
 	/* FUNC1=FEC_COL Sets Next 15 to FEC pads */
 	{
 		offsetof(struct ioctrl512x, io_control_psc0_0), 15, 0,
 		IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	},
 	/* FUNC1=SELECT LPC_CS1 */
 	{
 		offsetof(struct ioctrl512x, io_control_lpc_cs1), 1, 0,
 		IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	},
 	/* FUNC3=SELECT PSC5_2 */
 	{
 		offsetof(struct ioctrl512x, io_control_psc5_2), 1, 0,
 		IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	},
 	/* FUNC3=SELECT PSC5_3 */
 	{
 		offsetof(struct ioctrl512x, io_control_psc5_3), 1, 0,
 		IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	},
 	/* FUNC3=SELECT PSC7_3 */
 	{
 		offsetof(struct ioctrl512x, io_control_psc7_3), 1, 0,
 		IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	},
 	/* FUNC3=SELECT PSC9_0 */
 	{
 		offsetof(struct ioctrl512x, io_control_psc9_0), 3, 0,
 		IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	},
 	/* FUNC3=SELECT PSC10_0 */
 	{
 		offsetof(struct ioctrl512x, io_control_psc10_0), 3, 0,
 		IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	},
 	/* FUNC3=SELECT PSC10_3 */
 	{
 		offsetof(struct ioctrl512x, io_control_psc10_3), 1, 0,
 		IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	},
 	/* FUNC3=SELECT PSC11_0 */
 	{
 		offsetof(struct ioctrl512x, io_control_psc11_0), 4, 0,
 		IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	},
 	/* FUNC0=SELECT IRQ0 */
 	{
 		offsetof(struct ioctrl512x, io_control_irq0), 4, 0,
 		IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 		IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 	}
 };

 static iopin_t rev2_silicon_pci_ioregs_init[] = {
 	/* FUNC0=PCI Sets next 54 to PCI pads */
 	{
 		offsetof(struct ioctrl512x, io_control_pci_ad31), 54, 0,
 		IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_DS(0)
 	}
 };

 int checkboard(void)
 {
 	volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
 	u32 spridr;

 	puts("Board: MECP_5123\n");

 	/*
 	 * Initialize function mux & slew rate IO inter alia on IO
 	 * Pins
 	 */
 	iopin_initialize(ioregs_init, ARRAY_SIZE(ioregs_init));

 	spridr = in_be32(&im->sysconf.spridr);
 	if (SVR_MJREV(spridr) >= 2)
 		iopin_initialize(rev2_silicon_pci_ioregs_init, 1);

 	return 0;
 }

 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 void ft_board_setup(void *blob, bd_t *bd)
 {
 	ft_cpu_setup(blob, bd);
 }
 #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
	/*
	* (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
	* (C) Copyright 2009 Dave Srl www.dave.eu
	* (C) Copyright 2009 Stefan Roese <sr@denx.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
	*
	*/

	#include <common.h>
	#include <asm/bitops.h>
	#include <command.h>
	#include <asm/io.h>
	#include <asm/processor.h>
	#include <asm/mpc512x.h>
	#include <fdt_support.h>

	DECLARE_GLOBAL_DATA_PTR;

	/* Clocks in use */
	#define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN \| \
	CLOCK_SCCR1_LPC_EN \| \
	CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) \| \
	CLOCK_SCCR1_PSCFIFO_EN \| \
	CLOCK_SCCR1_DDR_EN \| \
	CLOCK_SCCR1_FEC_EN \| \
	CLOCK_SCCR1_NFC_EN \| \
	CLOCK_SCCR1_PCI_EN \| \
	CLOCK_SCCR1_TPR_EN)

	#define SCCR2_CLOCKS_EN (CLOCK_SCCR2_MEM_EN \| \
	CLOCK_SCCR2_I2C_EN)

	int eeprom_write_enable(unsigned dev_addr, int state)
	{
	volatile immap_t im = (immap_t )CONFIG_SYS_IMMR;

	if (dev_addr != CONFIG_SYS_I2C_EEPROM_ADDR)
	return -1;

	if (state == 0)
	setbits_be32(&im->gpio.gpdat, 0x00100000);
	else
	clrbits_be32(&im->gpio.gpdat, 0x00100000);

	return 0;
	}

	int board_early_init_f(void)
	{
	volatile immap_t im = (immap_t )CONFIG_SYS_IMMR;
	u32 spridr;
	int i;

	/*
	* Initialize Local Window for NOR FLASH access
	*/
	out_be32(&im->sysconf.lpcs0aw,
	CSAW_START(CONFIG_SYS_FLASH_BASE) \|
	CSAW_STOP(CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE));
	sync_law(&im->sysconf.lpcs0aw);

	/*
	* Initialize Local Window for boot access
	*/
	out_be32(&im->sysconf.lpbaw,
	CSAW_START(0xffb00000) \| CSAW_STOP(0xffb00000, 0x00010000));
	sync_law(&im->sysconf.lpbaw);

	/*
	* Initialize Local Window for VPC3 access
	*/
	out_be32(&im->sysconf.lpcs1aw,
	CSAW_START(CONFIG_SYS_VPC3_BASE) \|
	CSAW_STOP(CONFIG_SYS_VPC3_BASE, CONFIG_SYS_VPC3_SIZE));
	sync_law(&im->sysconf.lpcs1aw);

	/*
	* Configure Flash Speed
	*/
	out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG);

	/*
	* Configure VPC3 Speed
	*/
	out_be32(&im->lpc.cs_cfg[1], CONFIG_SYS_CS1_CFG);

	spridr = in_be32(&im->sysconf.spridr);
	if (SVR_MJREV(spridr) >= 2)
	out_be32(&im->lpc.altr, CONFIG_SYS_CS_ALETIMING);

	/*
	* Enable clocks
	*/
	out_be32(&im->clk.sccr[0], SCCR1_CLOCKS_EN);
	out_be32(&im->clk.sccr[1], SCCR2_CLOCKS_EN);
	#if defined(CONFIG_IIM) \|\| defined(CONFIG_CMD_FUSE)
	setbits_be32(&im->clk.sccr[1], CLOCK_SCCR2_IIM_EN);
	#endif

	/*
	* Configure MSCAN clocks
	*/
	for (i=0; i<4; ++i) {
	out_be32(&im->clk.msccr[i], 0x00300000);
	out_be32(&im->clk.msccr[i], 0x00310000);
	}

	/*
	* Configure GPIO's
	*/
	clrbits_be32(&im->gpio.gpodr, 0x000000e0);
	clrbits_be32(&im->gpio.gpdir, 0x00ef0000);
	setbits_be32(&im->gpio.gpdir, 0x001000e0);
	setbits_be32(&im->gpio.gpdat, 0x00100000);

	return 0;
	}

	phys_size_t initdram(int board_type)
	{
	return get_ram_size(0, fixed_sdram(NULL, NULL, 0));
	}

	int misc_init_r(void)
	{
	volatile immap_t im = (immap_t ) CONFIG_SYS_IMMR;
	u32 val;

	/*
	* Optimize access to profibus chip (VPC3) on the local bus
	*/

	/*
	* Select 1:1 for LPC_DIV
	*/
	val = in_be32(&im->clk.scfr[0]) & ~SCFR1_LPC_DIV_MASK;
	out_be32(&im->clk.scfr[0], val \| (0x1 << SCFR1_LPC_DIV_SHIFT));

	/*
	* Configure LPC Chips Select Deadcycle Control Register
	* CS0 - device can drive data 2 clock cycle(s) after CS deassertion
	* CS1 - device can drive data 1 clock cycle(s) after CS deassertion
	*/
	clrbits_be32(&im->lpc.cs_dccr, 0x000000ff);
	setbits_be32(&im->lpc.cs_dccr, (0x00 << 4) \| (0x01 << 0));

	/*
	* Configure LPC Chips Select Holdcycle Control Register
	* CS0 - data is valid 2 clock cycle(s) after CS deassertion
	* CS1 - data is valid 1 clock cycle(s) after CS deassertion
	*/
	clrbits_be32(&im->lpc.cs_hccr, 0x000000ff);
	setbits_be32(&im->lpc.cs_hccr, (0x00 << 4) \| (0x01 << 0));

	return 0;
	}

	static iopin_t ioregs_init[] = {
	/* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
	{
	offsetof(struct ioctrl512x, io_control_spdif_txclk), 3, 0,
	IO_PIN_FMUX(1) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	},
	/* FUNC1=FEC_COL Sets Next 15 to FEC pads */
	{
	offsetof(struct ioctrl512x, io_control_psc0_0), 15, 0,
	IO_PIN_FMUX(1) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	},
	/* FUNC1=SELECT LPC_CS1 */
	{
	offsetof(struct ioctrl512x, io_control_lpc_cs1), 1, 0,
	IO_PIN_FMUX(0) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	},
	/* FUNC3=SELECT PSC5_2 */
	{
	offsetof(struct ioctrl512x, io_control_psc5_2), 1, 0,
	IO_PIN_FMUX(2) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	},
	/* FUNC3=SELECT PSC5_3 */
	{
	offsetof(struct ioctrl512x, io_control_psc5_3), 1, 0,
	IO_PIN_FMUX(3) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	},
	/* FUNC3=SELECT PSC7_3 */
	{
	offsetof(struct ioctrl512x, io_control_psc7_3), 1, 0,
	IO_PIN_FMUX(3) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	},
	/* FUNC3=SELECT PSC9_0 */
	{
	offsetof(struct ioctrl512x, io_control_psc9_0), 3, 0,
	IO_PIN_FMUX(3) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	},
	/* FUNC3=SELECT PSC10_0 */
	{
	offsetof(struct ioctrl512x, io_control_psc10_0), 3, 0,
	IO_PIN_FMUX(3) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	},
	/* FUNC3=SELECT PSC10_3 */
	{
	offsetof(struct ioctrl512x, io_control_psc10_3), 1, 0,
	IO_PIN_FMUX(0) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	},
	/* FUNC3=SELECT PSC11_0 */
	{
	offsetof(struct ioctrl512x, io_control_psc11_0), 4, 0,
	IO_PIN_FMUX(3) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	},
	/* FUNC0=SELECT IRQ0 */
	{
	offsetof(struct ioctrl512x, io_control_irq0), 4, 0,
	IO_PIN_FMUX(0) \| IO_PIN_HOLD(0) \| IO_PIN_PUD(0) \|
	IO_PIN_PUE(0) \| IO_PIN_ST(0) \| IO_PIN_DS(3)
	}
	};

	static iopin_t rev2_silicon_pci_ioregs_init[] = {
	/* FUNC0=PCI Sets next 54 to PCI pads */
	{
	offsetof(struct ioctrl512x, io_control_pci_ad31), 54, 0,
	IO_PIN_FMUX(0) \| IO_PIN_HOLD(0) \| IO_PIN_DS(0)
	}
	};

	int checkboard(void)
	{
	volatile immap_t im = (immap_t )CONFIG_SYS_IMMR;
	u32 spridr;

	puts("Board: MECP_5123\n");

	/*
	* Initialize function mux & slew rate IO inter alia on IO
	* Pins
	*/
	iopin_initialize(ioregs_init, ARRAY_SIZE(ioregs_init));

	spridr = in_be32(&im->sysconf.spridr);
	if (SVR_MJREV(spridr) >= 2)
	iopin_initialize(rev2_silicon_pci_ioregs_init, 1);

	return 0;
	}

	#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
	void ft_board_setup(void blob, bd_t bd)
	{
	ft_cpu_setup(blob, bd);
	}
	#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */