board/mpc8641hpcn/mpc8641hpcn.c - filogic/uboot - Gitiles

 /*
  * Copyright 2004 Freescale Semiconductor.
  * Jeff Brown (jeffrey@freescale.com)
  * Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
  *
  * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
  *
  * 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 <pci.h>
 #include <asm/processor.h>
 #include <asm/immap_86xx.h>
 #include <spd.h>

 #if defined(CONFIG_OF_FLAT_TREE)
 #include <ft_build.h>
 extern void ft_cpu_setup(void *blob, bd_t *bd);
 #endif

 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 extern void ddr_enable_ecc(unsigned int dram_size);
 #endif

 extern long int spd_sdram(void);

 void local_bus_init(void);
 void sdram_init(void);
 long int fixed_sdram(void);


 int board_early_init_f (void)
 {
     return 0;
 }

 int checkboard (void)
 {
 	puts("Board: MPC8641HPCN\n");

 #ifdef CONFIG_PCI

         /* Sri: Note that at this point we will only test on PCI1
          */

         volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
         volatile ccsr_gur_t *gur = &immap->im_gur;
         volatile ccsr_pex_t *pex1 = &immap->im_pex1;

         uint devdisr = gur->devdisr;
         uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16;
         uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17;
         uint pex1_agent =  (host1_agent == 0) || (host1_agent == 1);


         if ((io_sel==2 || io_sel==3 || io_sel==5 || io_sel==6 || io_sel==7 || io_sel==0xF ) && !(devdisr & MPC86xx_DEVDISR_PCIEX1)){
                 debug ("PCI-EXPRESS 1: %s \n",
                         pex1_agent ? "Agent" : "Host");
                 debug("0x%08x=0x%08x ", &pex1->pme_msg_det,pex1->pme_msg_det);
                 if (pex1->pme_msg_det) {
                         pex1->pme_msg_det = 0xffffffff;
                         debug (" with errors.  Clearing.  Now 0x%08x",pex1->pme_msg_det);
                 }
                 debug ("\n");
         } else {
                 printf ("PCI-EXPRESS 1: Disabled\n");
         }

 #else
 	printf("PCI-EXPRESS1: Disabled\n");
 #endif

 	/*
 	 * Initialize local bus.
 	 */
 	local_bus_init();

 	return 0;
 }


 long int
 initdram(int board_type)
 {
 	long dram_size = 0;
 	extern long spd_sdram (void);

 #if defined(CONFIG_SPD_EEPROM)
 	dram_size = spd_sdram ();
 #else
 	dram_size = fixed_sdram ();
 #endif

 #if defined(CFG_RAMBOOT)
 	puts("    DDR: ");
 	return dram_size;
 #endif

 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 	/*
 	 * Initialize and enable DDR ECC.
 	 */
 	ddr_enable_ecc(dram_size);
 #endif

 	/*
 	 * Initialize SDRAM.  Currently HPCN doesn't have
 	 * SDRAM but we'll leave this here for now
 	 * in case someone changes their mind
 	 */
 #if !defined(CONFIG_MPC8641HPCN)
         //	sdram_init();
 #endif

 	puts("    DDR: ");
 	return dram_size;
 }


 /*
  * Initialize Local Bus
  */

 void
 local_bus_init(void)
 {
 	volatile immap_t *immap = (immap_t *)CFG_IMMR;
 	volatile ccsr_lbc_t *lbc = &immap->im_lbc;

 	uint clkdiv;
 	uint lbc_hz;
 	sys_info_t sysinfo;

 	/*
 	 * Errata LBC11.
 	 * Fix Local Bus clock glitch when DLL is enabled.
 	 *
 	 * If localbus freq is < 66Mhz, DLL bypass mode must be used.
 	 * If localbus freq is > 133Mhz, DLL can be safely enabled.
 	 * Between 66 and 133, the DLL is enabled with an override workaround.
 	 */

 	get_sys_info(&sysinfo);
 	clkdiv = lbc->lcrr & 0x0f;
 	lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
 }

 #if defined(CFG_DRAM_TEST)
 int testdram (void)
 {
 	uint *pstart = (uint *) CFG_MEMTEST_START;
 	uint *pend = (uint *) CFG_MEMTEST_END;
 	uint *p;

 	printf("SDRAM test phase 1:\n");
 	for (p = pstart; p < pend; p++)
 		*p = 0xaaaaaaaa;

 	for (p = pstart; p < pend; p++) {
 		if (*p != 0xaaaaaaaa) {
 			printf ("SDRAM test fails at: %08x\n", (uint) p);
 			return 1;
 		}
 	}

 	printf("SDRAM test phase 2:\n");
 	for (p = pstart; p < pend; p++)
 		*p = 0x55555555;

 	for (p = pstart; p < pend; p++) {
 		if (*p != 0x55555555) {
 			printf ("SDRAM test fails at: %08x\n", (uint) p);
 			return 1;
 		}
 	}

 	printf("SDRAM test passed.\n");
 	return 0;
 }
 #endif


 #if !defined(CONFIG_SPD_EEPROM)
 /*************************************************************************
  *  fixed sdram init -- doesn't use serial presence detect.
  ************************************************************************/
 long int fixed_sdram (void)
 {
 #if !defined(CFG_RAMBOOT)
 	volatile immap_t *immap = (immap_t *)CFG_IMMR;
 	volatile ccsr_ddr_t *ddr= &immap->im_ddr1;

 	ddr->cs0_bnds = CFG_DDR_CS0_BNDS;
 	ddr->cs0_config = CFG_DDR_CS0_CONFIG;
 	ddr->ext_refrec = CFG_DDR_EXT_REFRESH;
 	ddr->timing_cfg_0 = CFG_DDR_TIMING_0;
 	ddr->timing_cfg_1 = CFG_DDR_TIMING_1;
 	ddr->timing_cfg_2 = CFG_DDR_TIMING_2;
 	ddr->sdram_mode_1 = CFG_DDR_MODE_1;
 	ddr->sdram_mode_2 = CFG_DDR_MODE_2;
 	ddr->sdram_interval = CFG_DDR_INTERVAL;
         ddr->sdram_data_init = CFG_DDR_DATA_INIT;
 	ddr->sdram_clk_cntl = CFG_DDR_CLK_CTRL;
 	ddr->sdram_ocd_cntl = CFG_DDR_OCD_CTRL;
 	ddr->sdram_ocd_status = CFG_DDR_OCD_STATUS;

 #if defined (CONFIG_DDR_ECC)
 	ddr->err_disable = 0x0000008D;
 	ddr->err_sbe = 0x00ff0000;
 #endif
 	asm("sync;isync");

 	udelay(500);

 #if defined (CONFIG_DDR_ECC)
 	/* Enable ECC checking */
 	ddr->sdram_cfg_1 = (CFG_DDR_CONTROL | 0x20000000);
 #else
 	ddr->sdram_cfg_1 = CFG_DDR_CONTROL;
 	ddr->sdram_cfg_2 = CFG_DDR_CONTROL2;
 #endif
 	asm("sync; isync");

 	udelay(500);
 #endif
 	return CFG_SDRAM_SIZE * 1024 * 1024;
 }
 #endif	/* !defined(CONFIG_SPD_EEPROM) */


 #if defined(CONFIG_PCI)
 /*
  * Initialize PCI Devices, report devices found.
  */

 #ifndef CONFIG_PCI_PNP
 static struct pci_config_table pci_fsl86xxads_config_table[] = {
     { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
       PCI_IDSEL_NUMBER, PCI_ANY_ID,
       pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
 				   PCI_ENET0_MEMADDR,
 				   PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
       } },
     { }
 };
 #endif


 static struct pci_controller hose = {
 #ifndef CONFIG_PCI_PNP
 	config_table: pci_mpc86xxcts_config_table,
 #endif
 };

 #endif	/* CONFIG_PCI */


 void
 pci_init_board(void)
 {
 #ifdef CONFIG_PCI
 	extern void pci_mpc86xx_init(struct pci_controller *hose);

 	pci_mpc86xx_init(&hose);
 #endif /* CONFIG_PCI */
 }

 #if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
 void
 ft_board_setup(void *blob, bd_t *bd)
 {
 	u32 *p;
 	int len;

 	ft_cpu_setup(blob, bd);

 	p = ft_get_prop(blob, "/memory/reg", &len);
 	if (p != NULL) {
 		*p++ = cpu_to_be32(bd->bi_memstart);
 		*p = cpu_to_be32(bd->bi_memsize);
 	}

 }
 #endif

 void
 after_reloc(ulong dest_addr)
 {
 	DECLARE_GLOBAL_DATA_PTR;

 	/* now, jump to the main U-Boot board init code */
 	board_init_r ((gd_t *)gd, dest_addr);

 	/* NOTREACHED */
 }
	/*
	* Copyright 2004 Freescale Semiconductor.
	* Jeff Brown (jeffrey@freescale.com)
	* Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
	*
	* (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
	*
	* 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 <pci.h>
	#include <asm/processor.h>
	#include <asm/immap_86xx.h>
	#include <spd.h>

	#if defined(CONFIG_OF_FLAT_TREE)
	#include <ft_build.h>
	extern void ft_cpu_setup(void blob, bd_t bd);
	#endif

	#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
	extern void ddr_enable_ecc(unsigned int dram_size);
	#endif

	extern long int spd_sdram(void);

	void local_bus_init(void);
	void sdram_init(void);
	long int fixed_sdram(void);


	int board_early_init_f (void)
	{
	return 0;
	}

	int checkboard (void)
	{
	puts("Board: MPC8641HPCN\n");

	#ifdef CONFIG_PCI

	/* Sri: Note that at this point we will only test on PCI1
	*/

	volatile immap_t immap = (immap_t ) CFG_CCSRBAR;
	volatile ccsr_gur_t *gur = &immap->im_gur;
	volatile ccsr_pex_t *pex1 = &immap->im_pex1;

	uint devdisr = gur->devdisr;
	uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16;
	uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17;
	uint pex1_agent = (host1_agent == 0) \|\| (host1_agent == 1);


	if ((io_sel==2 \|\| io_sel==3 \|\| io_sel==5 \|\| io_sel==6 \|\| io_sel==7 \|\| io_sel==0xF ) && !(devdisr & MPC86xx_DEVDISR_PCIEX1)){
	debug ("PCI-EXPRESS 1: %s \n",
	pex1_agent ? "Agent" : "Host");
	debug("0x%08x=0x%08x ", &pex1->pme_msg_det,pex1->pme_msg_det);
	if (pex1->pme_msg_det) {
	pex1->pme_msg_det = 0xffffffff;
	debug (" with errors. Clearing. Now 0x%08x",pex1->pme_msg_det);
	}
	debug ("\n");
	} else {
	printf ("PCI-EXPRESS 1: Disabled\n");
	}

	#else
	printf("PCI-EXPRESS1: Disabled\n");
	#endif

	/*
	* Initialize local bus.
	*/
	local_bus_init();

	return 0;
	}


	long int
	initdram(int board_type)
	{
	long dram_size = 0;
	extern long spd_sdram (void);

	#if defined(CONFIG_SPD_EEPROM)
	dram_size = spd_sdram ();
	#else
	dram_size = fixed_sdram ();
	#endif

	#if defined(CFG_RAMBOOT)
	puts(" DDR: ");
	return dram_size;
	#endif

	#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
	/*
	* Initialize and enable DDR ECC.
	*/
	ddr_enable_ecc(dram_size);
	#endif

	/*
	* Initialize SDRAM. Currently HPCN doesn't have
	* SDRAM but we'll leave this here for now
	* in case someone changes their mind
	*/
	#if !defined(CONFIG_MPC8641HPCN)
	// sdram_init();
	#endif

	puts(" DDR: ");
	return dram_size;
	}


	/*
	* Initialize Local Bus
	*/

	void
	local_bus_init(void)
	{
	volatile immap_t immap = (immap_t )CFG_IMMR;
	volatile ccsr_lbc_t *lbc = &immap->im_lbc;

	uint clkdiv;
	uint lbc_hz;
	sys_info_t sysinfo;

	/*
	* Errata LBC11.
	* Fix Local Bus clock glitch when DLL is enabled.
	*
	* If localbus freq is < 66Mhz, DLL bypass mode must be used.
	* If localbus freq is > 133Mhz, DLL can be safely enabled.
	* Between 66 and 133, the DLL is enabled with an override workaround.
	*/

	get_sys_info(&sysinfo);
	clkdiv = lbc->lcrr & 0x0f;
	lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
	}

	#if defined(CFG_DRAM_TEST)
	int testdram (void)
	{
	uint pstart = (uint ) CFG_MEMTEST_START;
	uint pend = (uint ) CFG_MEMTEST_END;
	uint *p;

	printf("SDRAM test phase 1:\n");
	for (p = pstart; p < pend; p++)
	*p = 0xaaaaaaaa;

	for (p = pstart; p < pend; p++) {
	if (*p != 0xaaaaaaaa) {
	printf ("SDRAM test fails at: %08x\n", (uint) p);
	return 1;
	}
	}

	printf("SDRAM test phase 2:\n");
	for (p = pstart; p < pend; p++)
	*p = 0x55555555;

	for (p = pstart; p < pend; p++) {
	if (*p != 0x55555555) {
	printf ("SDRAM test fails at: %08x\n", (uint) p);
	return 1;
	}
	}

	printf("SDRAM test passed.\n");
	return 0;
	}
	#endif


	#if !defined(CONFIG_SPD_EEPROM)
	/*************************************************************************
	* fixed sdram init -- doesn't use serial presence detect.
	************************************************************************/
	long int fixed_sdram (void)
	{
	#if !defined(CFG_RAMBOOT)
	volatile immap_t immap = (immap_t )CFG_IMMR;
	volatile ccsr_ddr_t *ddr= &immap->im_ddr1;

	ddr->cs0_bnds = CFG_DDR_CS0_BNDS;
	ddr->cs0_config = CFG_DDR_CS0_CONFIG;
	ddr->ext_refrec = CFG_DDR_EXT_REFRESH;
	ddr->timing_cfg_0 = CFG_DDR_TIMING_0;
	ddr->timing_cfg_1 = CFG_DDR_TIMING_1;
	ddr->timing_cfg_2 = CFG_DDR_TIMING_2;
	ddr->sdram_mode_1 = CFG_DDR_MODE_1;
	ddr->sdram_mode_2 = CFG_DDR_MODE_2;
	ddr->sdram_interval = CFG_DDR_INTERVAL;
	ddr->sdram_data_init = CFG_DDR_DATA_INIT;
	ddr->sdram_clk_cntl = CFG_DDR_CLK_CTRL;
	ddr->sdram_ocd_cntl = CFG_DDR_OCD_CTRL;
	ddr->sdram_ocd_status = CFG_DDR_OCD_STATUS;

	#if defined (CONFIG_DDR_ECC)
	ddr->err_disable = 0x0000008D;
	ddr->err_sbe = 0x00ff0000;
	#endif
	asm("sync;isync");

	udelay(500);

	#if defined (CONFIG_DDR_ECC)
	/* Enable ECC checking */
	ddr->sdram_cfg_1 = (CFG_DDR_CONTROL \| 0x20000000);
	#else
	ddr->sdram_cfg_1 = CFG_DDR_CONTROL;
	ddr->sdram_cfg_2 = CFG_DDR_CONTROL2;
	#endif
	asm("sync; isync");

	udelay(500);
	#endif
	return CFG_SDRAM_SIZE * 1024 * 1024;
	}
	#endif /* !defined(CONFIG_SPD_EEPROM) */


	#if defined(CONFIG_PCI)
	/*
	* Initialize PCI Devices, report devices found.
	*/

	#ifndef CONFIG_PCI_PNP
	static struct pci_config_table pci_fsl86xxads_config_table[] = {
	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
	PCI_IDSEL_NUMBER, PCI_ANY_ID,
	pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
	PCI_ENET0_MEMADDR,
	PCI_COMMAND_MEMORY \| PCI_COMMAND_MASTER
	} },
	{ }
	};
	#endif


	static struct pci_controller hose = {
	#ifndef CONFIG_PCI_PNP
	config_table: pci_mpc86xxcts_config_table,
	#endif
	};

	#endif /* CONFIG_PCI */


	void
	pci_init_board(void)
	{
	#ifdef CONFIG_PCI
	extern void pci_mpc86xx_init(struct pci_controller *hose);

	pci_mpc86xx_init(&hose);
	#endif /* CONFIG_PCI */
	}

	#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
	void
	ft_board_setup(void blob, bd_t bd)
	{
	u32 *p;
	int len;

	ft_cpu_setup(blob, bd);

	p = ft_get_prop(blob, "/memory/reg", &len);
	if (p != NULL) {
	*p++ = cpu_to_be32(bd->bi_memstart);
	*p = cpu_to_be32(bd->bi_memsize);
	}

	}
	#endif

	void
	after_reloc(ulong dest_addr)
	{
	DECLARE_GLOBAL_DATA_PTR;

	/* now, jump to the main U-Boot board init code */
	board_init_r ((gd_t *)gd, dest_addr);

	/* NOTREACHED */
	}