u-boot-imx/board/amcc/sequoia/sequoia.c - nest-learning-thermostat/5.1.3/u-boot - Git at Google

 /*
  * (C) Copyright 2006-2009
  * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
  * (C) Copyright 2006
  * Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
  * Alain Saurel,	    AMCC/IBM, alain.saurel@fr.ibm.com
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

 #include <common.h>
 #include <libfdt.h>
 #include <fdt_support.h>
 #include <asm/ppc4xx.h>
 #include <asm/ppc4xx-gpio.h>
 #include <asm/processor.h>
 #include <asm/io.h>
 #include <asm/bitops.h>

 DECLARE_GLOBAL_DATA_PTR;

 #if !defined(CONFIG_SYS_NO_FLASH)
 extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
 #endif

 extern void __ft_board_setup(void *blob, bd_t *bd);
 ulong flash_get_size(ulong base, int banknum);

 static inline u32 get_async_pci_freq(void)
 {
 	if (in_8((void *)(CONFIG_SYS_BCSR_BASE + 5)) &
 		CONFIG_SYS_BCSR5_PCI66EN)
 		return 66666666;
 	else
 		return 33333333;
 }

 int board_early_init_f(void)
 {
 	u32 sdr0_cust0;
 	u32 sdr0_pfc1, sdr0_pfc2;
 	u32 reg;

 	mtdcr(EBC0_CFGADDR, EBC0_CFG);
 	mtdcr(EBC0_CFGDATA, 0xb8400000);

 	/*
 	 * Setup the interrupt controller polarities, triggers, etc.
 	 */
 	mtdcr(UIC0SR, 0xffffffff);	/* clear all */
 	mtdcr(UIC0ER, 0x00000000);	/* disable all */
 	mtdcr(UIC0CR, 0x00000005);	/* ATI & UIC1 crit are critical */
 	mtdcr(UIC0PR, 0xfffff7ff);	/* per ref-board manual */
 	mtdcr(UIC0TR, 0x00000000);	/* per ref-board manual */
 	mtdcr(UIC0VR, 0x00000000);	/* int31 highest, base=0x000 */
 	mtdcr(UIC0SR, 0xffffffff);	/* clear all */

 	mtdcr(UIC1SR, 0xffffffff);	/* clear all */
 	mtdcr(UIC1ER, 0x00000000);	/* disable all */
 	mtdcr(UIC1CR, 0x00000000);	/* all non-critical */
 	mtdcr(UIC1PR, 0xffffffff);	/* per ref-board manual */
 	mtdcr(UIC1TR, 0x00000000);	/* per ref-board manual */
 	mtdcr(UIC1VR, 0x00000000);	/* int31 highest, base=0x000 */
 	mtdcr(UIC1SR, 0xffffffff);	/* clear all */

 	mtdcr(UIC2SR, 0xffffffff);	/* clear all */
 	mtdcr(UIC2ER, 0x00000000);	/* disable all */
 	mtdcr(UIC2CR, 0x00000000);	/* all non-critical */
 	mtdcr(UIC2PR, 0xffffffff);	/* per ref-board manual */
 	mtdcr(UIC2TR, 0x00000000);	/* per ref-board manual */
 	mtdcr(UIC2VR, 0x00000000);	/* int31 highest, base=0x000 */
 	mtdcr(UIC2SR, 0xffffffff);	/* clear all */

 	/* Check and reconfigure the PCI sync clock if necessary */
 	ppc4xx_pci_sync_clock_config(get_async_pci_freq());

 	/* 50MHz tmrclk */
 	out_8((u8 *) CONFIG_SYS_BCSR_BASE + 0x04, 0x00);

 	/* clear write protects */
 	out_8((u8 *) CONFIG_SYS_BCSR_BASE + 0x07, 0x00);

 	/* enable Ethernet */
 	out_8((u8 *) CONFIG_SYS_BCSR_BASE + 0x08, 0x00);

 	/* enable USB device */
 	out_8((u8 *) CONFIG_SYS_BCSR_BASE + 0x09, 0x20);

 	/* select Ethernet (and optionally IIC1) pins */
 	mfsdr(SDR0_PFC1, sdr0_pfc1);
 	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
 		SDR0_PFC1_SELECT_CONFIG_4;
 #ifdef CONFIG_I2C_MULTI_BUS
 	sdr0_pfc1 |= ((sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_IIC1_SEL);
 #endif
 	/* Two UARTs, so we need 4-pin mode.  Also, we want CTS/RTS mode. */
 	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0IM_MASK) | SDR0_PFC1_U0IM_4PINS;
 	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0ME_MASK) | SDR0_PFC1_U0ME_CTS_RTS;
 	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U1ME_MASK) | SDR0_PFC1_U1ME_CTS_RTS;

 	mfsdr(SDR0_PFC2, sdr0_pfc2);
 	sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
 		SDR0_PFC2_SELECT_CONFIG_4;
 	mtsdr(SDR0_PFC2, sdr0_pfc2);
 	mtsdr(SDR0_PFC1, sdr0_pfc1);

 	/* PCI arbiter enabled */
 	mfsdr(SDR0_PCI0, reg);
 	mtsdr(SDR0_PCI0, 0x80000000 | reg);

 	/* setup NAND FLASH */
 	mfsdr(SDR0_CUST0, sdr0_cust0);
 	sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL	|
 		SDR0_CUST0_NDFC_ENABLE		|
 		SDR0_CUST0_NDFC_BW_8_BIT	|
 		SDR0_CUST0_NDFC_ARE_MASK	|
 		(0x80000000 >> (28 + CONFIG_SYS_NAND_CS));
 	mtsdr(SDR0_CUST0, sdr0_cust0);

 	return 0;
 }

 int misc_init_r(void)
 {
 #if !defined(CONFIG_SYS_NO_FLASH)
 	uint pbcr;
 	int size_val = 0;
 #endif
 #ifdef CONFIG_440EPX
 	unsigned long usb2d0cr = 0;
 	unsigned long usb2phy0cr, usb2h0cr = 0;
 	unsigned long sdr0_pfc1;
 	char *act = getenv("usbact");
 #endif
 	u32 reg;

 #if !defined(CONFIG_SYS_NO_FLASH)
 	/* Re-do flash sizing to get full correct info */

 	/* adjust flash start and offset */
 	gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
 	gd->bd->bi_flashoffset = 0;

 #if defined(CONFIG_SYS_RAMBOOT)
 	mtdcr(EBC0_CFGADDR, PB3CR);
 #else
 	mtdcr(EBC0_CFGADDR, PB0CR);
 #endif
 	pbcr = mfdcr(EBC0_CFGDATA);
 	size_val = ffs(gd->bd->bi_flashsize) - 21;
 	pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
 #if defined(CONFIG_SYS_RAMBOOT)
 	mtdcr(EBC0_CFGADDR, PB3CR);
 #else
 	mtdcr(EBC0_CFGADDR, PB0CR);
 #endif
 	mtdcr(EBC0_CFGDATA, pbcr);

 	/*
 	 * Re-check to get correct base address
 	 */
 	flash_get_size(gd->bd->bi_flashstart, 0);

 #ifdef CONFIG_ENV_IS_IN_FLASH
 	/* Monitor protection ON by default */
 	(void)flash_protect(FLAG_PROTECT_SET,
 			    -CONFIG_SYS_MONITOR_LEN,
 			    0xffffffff,
 			    &flash_info[0]);

 	/* Env protection ON by default */
 	(void)flash_protect(FLAG_PROTECT_SET,
 			    CONFIG_ENV_ADDR_REDUND,
 			    CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
 			    &flash_info[0]);
 #endif
 #endif /* CONFIG_SYS_NO_FLASH */

 	/*
 	 * USB suff...
 	 */
 #ifdef CONFIG_440EPX
 	if (act == NULL || strcmp(act, "hostdev") == 0) {
 		/* SDR Setting */
 		mfsdr(SDR0_PFC1, sdr0_pfc1);
 		mfsdr(SDR0_USB2D0CR, usb2d0cr);
 		mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
 		mfsdr(SDR0_USB2H0CR, usb2h0cr);

 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;

 		/*
 		 * An 8-bit/60MHz interface is the only possible alternative
 		 * when connecting the Device to the PHY
 		 */
 		usb2h0cr   = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
 		usb2h0cr   = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ;

 		/*
 		 * To enable the USB 2.0 Device function
 		 * through the UTMI interface
 		 */
 		usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
 		usb2d0cr = usb2d0cr | SDR0_USB2D0CR_USB2DEV_SELECTION;

 		sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
 		sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_USB2D_SEL;

 		mtsdr(SDR0_PFC1, sdr0_pfc1);
 		mtsdr(SDR0_USB2D0CR, usb2d0cr);
 		mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
 		mtsdr(SDR0_USB2H0CR, usb2h0cr);

 		/*clear resets*/
 		udelay (1000);
 		mtsdr(SDR0_SRST1, 0x00000000);
 		udelay (1000);
 		mtsdr(SDR0_SRST0, 0x00000000);

 		printf("USB:   Host(int phy) Device(ext phy)\n");

 	} else if (strcmp(act, "dev") == 0) {
 		/*-------------------PATCH-------------------------------*/
 		mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);

 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
 		mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);

 		udelay (1000);
 		mtsdr(SDR0_SRST1, 0x672c6000);

 		udelay (1000);
 		mtsdr(SDR0_SRST0, 0x00000080);

 		udelay (1000);
 		mtsdr(SDR0_SRST1, 0x60206000);

 		*(unsigned int *)(0xe0000350) = 0x00000001;

 		udelay (1000);
 		mtsdr(SDR0_SRST1, 0x60306000);
 		/*-------------------PATCH-------------------------------*/

 		/* SDR Setting */
 		mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
 		mfsdr(SDR0_USB2H0CR, usb2h0cr);
 		mfsdr(SDR0_USB2D0CR, usb2d0cr);
 		mfsdr(SDR0_PFC1, sdr0_pfc1);

 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_DEV;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
 		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_DEV;

 		usb2h0cr   = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
 		usb2h0cr   = usb2h0cr | SDR0_USB2H0CR_WDINT_8BIT_60MHZ;

 		usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
 		usb2d0cr = usb2d0cr | SDR0_USB2D0CR_EBC_SELECTION;

 		sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
 		sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_EBCHR_SEL;

 		mtsdr(SDR0_USB2H0CR, usb2h0cr);
 		mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
 		mtsdr(SDR0_USB2D0CR, usb2d0cr);
 		mtsdr(SDR0_PFC1, sdr0_pfc1);

 		/* clear resets */
 		udelay (1000);
 		mtsdr(SDR0_SRST1, 0x00000000);
 		udelay (1000);
 		mtsdr(SDR0_SRST0, 0x00000000);

 		printf("USB:   Device(int phy)\n");
 	}
 #endif /* CONFIG_440EPX */

 	mfsdr(SDR0_SRST1, reg);		/* enable security/kasumi engines */
 	reg &= ~(SDR0_SRST1_CRYP0 | SDR0_SRST1_KASU0);
 	mtsdr(SDR0_SRST1, reg);

 	/*
 	 * Clear PLB4A0_ACR[WRP]
 	 * This fix will make the MAL burst disabling patch for the Linux
 	 * EMAC driver obsolete.
 	 */
 	reg = mfdcr(PLB4A0_ACR) & ~PLB4Ax_ACR_WRP_MASK;
 	mtdcr(PLB4A0_ACR, reg);

 	return 0;
 }

 int checkboard(void)
 {
 	char buf[64];
 	int i = getenv_f("serial#", buf, sizeof(buf));
 	u8 rev;
 	u32 clock = get_async_pci_freq();

 #ifdef CONFIG_440EPX
 	printf("Board: Sequoia - AMCC PPC440EPx Evaluation Board");
 #else
 	printf("Board: Rainier - AMCC PPC440GRx Evaluation Board");
 #endif

 	rev = in_8((void *)(CONFIG_SYS_BCSR_BASE + 0));
 	printf(", Rev. %X, PCI-Async=%d MHz", rev, clock / 1000000);

 	if (i > 0) {
 		puts(", serial# ");
 		puts(buf);
 	}
 	putc('\n');

 	/*
 	 * Reconfiguration of the PCI sync clock is already done,
 	 * now check again if everything is in range:
 	 */
 	if (ppc4xx_pci_sync_clock_config(clock)) {
 		printf("ERROR: PCI clocking incorrect (async=%d "
 		       "sync=%ld)!\n", clock, get_PCI_freq());
 	}

 	return (0);
 }

 #if defined(CONFIG_PCI) && defined(CONFIG_PCI_PNP)
 /*
  * Assign interrupts to PCI devices.
  */
 void board_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
 {
 	pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, VECNUM_EIRQ2);
 }
 #endif

 #if defined(CONFIG_SYS_RAMBOOT)
 /*
  * On NAND-booting sequoia, we need to patch the chips select numbers
  * in the dtb (CS0 - NAND, CS3 - NOR)
  */
 void ft_board_setup(void *blob, bd_t *bd)
 {
 	int rc;
 	int len;
 	int nodeoffset;
 	struct fdt_property *prop;
 	u32 *reg;
 	char path[32];

 	/* First do common fdt setup */
 	__ft_board_setup(blob, bd);

 	/* And now configure NOR chip select to 3 instead of 0 */
 	strcpy(path, "/plb/opb/ebc/nor_flash@0,0");
 	nodeoffset = fdt_path_offset(blob, path);
 	prop = fdt_get_property_w(blob, nodeoffset, "reg", &len);
 	if (prop == NULL) {
 		printf("Unable to update NOR chip select for NAND booting\n");
 		return;
 	}
 	reg = (u32 *)&prop->data[0];
 	reg[0] = 3;
 	rc = fdt_find_and_setprop(blob, path, "reg", reg, 3 * sizeof(u32), 1);
 	if (rc) {
 		printf("Unable to update property NOR mappings, err=%s\n",
 		       fdt_strerror(rc));
 		return;
 	}

 	/* And now configure NAND chip select to 0 instead of 3 */
 	strcpy(path, "/plb/opb/ebc/ndfc@3,0");
 	nodeoffset = fdt_path_offset(blob, path);
 	prop = fdt_get_property_w(blob, nodeoffset, "reg", &len);
 	if (prop == NULL) {
 		printf("Unable to update NDFC chip select for NAND booting\n");
 		return;
 	}
 	reg = (u32 *)&prop->data[0];
 	reg[0] = 0;
 	rc = fdt_find_and_setprop(blob, path, "reg", reg, 3 * sizeof(u32), 1);
 	if (rc) {
 		printf("Unable to update property NDFC mappings, err=%s\n",
 		       fdt_strerror(rc));
 		return;
 	}
 }
 #endif /* CONFIG_SYS_RAMBOOT */
	/*
	* (C) Copyright 2006-2009
	* Stefan Roese, DENX Software Engineering, sr@denx.de.
	*
	* (C) Copyright 2006
	* Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
	* Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
	*
	* SPDX-License-Identifier: GPL-2.0+
	*/

	#include <common.h>
	#include <libfdt.h>
	#include <fdt_support.h>
	#include <asm/ppc4xx.h>
	#include <asm/ppc4xx-gpio.h>
	#include <asm/processor.h>
	#include <asm/io.h>
	#include <asm/bitops.h>

	DECLARE_GLOBAL_DATA_PTR;

	#if !defined(CONFIG_SYS_NO_FLASH)
	extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
	#endif

	extern void __ft_board_setup(void blob, bd_t bd);
	ulong flash_get_size(ulong base, int banknum);

	static inline u32 get_async_pci_freq(void)
	{
	if (in_8((void *)(CONFIG_SYS_BCSR_BASE + 5)) &
	CONFIG_SYS_BCSR5_PCI66EN)
	return 66666666;
	else
	return 33333333;
	}

	int board_early_init_f(void)
	{
	u32 sdr0_cust0;
	u32 sdr0_pfc1, sdr0_pfc2;
	u32 reg;

	mtdcr(EBC0_CFGADDR, EBC0_CFG);
	mtdcr(EBC0_CFGDATA, 0xb8400000);

	/*
	* Setup the interrupt controller polarities, triggers, etc.
	*/
	mtdcr(UIC0SR, 0xffffffff); /* clear all */
	mtdcr(UIC0ER, 0x00000000); /* disable all */
	mtdcr(UIC0CR, 0x00000005); /* ATI & UIC1 crit are critical */
	mtdcr(UIC0PR, 0xfffff7ff); /* per ref-board manual */
	mtdcr(UIC0TR, 0x00000000); /* per ref-board manual */
	mtdcr(UIC0VR, 0x00000000); /* int31 highest, base=0x000 */
	mtdcr(UIC0SR, 0xffffffff); /* clear all */

	mtdcr(UIC1SR, 0xffffffff); /* clear all */
	mtdcr(UIC1ER, 0x00000000); /* disable all */
	mtdcr(UIC1CR, 0x00000000); /* all non-critical */
	mtdcr(UIC1PR, 0xffffffff); /* per ref-board manual */
	mtdcr(UIC1TR, 0x00000000); /* per ref-board manual */
	mtdcr(UIC1VR, 0x00000000); /* int31 highest, base=0x000 */
	mtdcr(UIC1SR, 0xffffffff); /* clear all */

	mtdcr(UIC2SR, 0xffffffff); /* clear all */
	mtdcr(UIC2ER, 0x00000000); /* disable all */
	mtdcr(UIC2CR, 0x00000000); /* all non-critical */
	mtdcr(UIC2PR, 0xffffffff); /* per ref-board manual */
	mtdcr(UIC2TR, 0x00000000); /* per ref-board manual */
	mtdcr(UIC2VR, 0x00000000); /* int31 highest, base=0x000 */
	mtdcr(UIC2SR, 0xffffffff); /* clear all */

	/* Check and reconfigure the PCI sync clock if necessary */
	ppc4xx_pci_sync_clock_config(get_async_pci_freq());

	/* 50MHz tmrclk */
	out_8((u8 *) CONFIG_SYS_BCSR_BASE + 0x04, 0x00);

	/* clear write protects */
	out_8((u8 *) CONFIG_SYS_BCSR_BASE + 0x07, 0x00);

	/* enable Ethernet */
	out_8((u8 *) CONFIG_SYS_BCSR_BASE + 0x08, 0x00);

	/* enable USB device */
	out_8((u8 *) CONFIG_SYS_BCSR_BASE + 0x09, 0x20);

	/* select Ethernet (and optionally IIC1) pins */
	mfsdr(SDR0_PFC1, sdr0_pfc1);
	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) \|
	SDR0_PFC1_SELECT_CONFIG_4;
	#ifdef CONFIG_I2C_MULTI_BUS
	sdr0_pfc1 \|= ((sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) \| SDR0_PFC1_SIS_IIC1_SEL);
	#endif
	/* Two UARTs, so we need 4-pin mode. Also, we want CTS/RTS mode. */
	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0IM_MASK) \| SDR0_PFC1_U0IM_4PINS;
	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0ME_MASK) \| SDR0_PFC1_U0ME_CTS_RTS;
	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U1ME_MASK) \| SDR0_PFC1_U1ME_CTS_RTS;

	mfsdr(SDR0_PFC2, sdr0_pfc2);
	sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) \|
	SDR0_PFC2_SELECT_CONFIG_4;
	mtsdr(SDR0_PFC2, sdr0_pfc2);
	mtsdr(SDR0_PFC1, sdr0_pfc1);

	/* PCI arbiter enabled */
	mfsdr(SDR0_PCI0, reg);
	mtsdr(SDR0_PCI0, 0x80000000 \| reg);

	/* setup NAND FLASH */
	mfsdr(SDR0_CUST0, sdr0_cust0);
	sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL \|
	SDR0_CUST0_NDFC_ENABLE \|
	SDR0_CUST0_NDFC_BW_8_BIT \|
	SDR0_CUST0_NDFC_ARE_MASK \|
	(0x80000000 >> (28 + CONFIG_SYS_NAND_CS));
	mtsdr(SDR0_CUST0, sdr0_cust0);

	return 0;
	}

	int misc_init_r(void)
	{
	#if !defined(CONFIG_SYS_NO_FLASH)
	uint pbcr;
	int size_val = 0;
	#endif
	#ifdef CONFIG_440EPX
	unsigned long usb2d0cr = 0;
	unsigned long usb2phy0cr, usb2h0cr = 0;
	unsigned long sdr0_pfc1;
	char *act = getenv("usbact");
	#endif
	u32 reg;

	#if !defined(CONFIG_SYS_NO_FLASH)
	/* Re-do flash sizing to get full correct info */

	/* adjust flash start and offset */
	gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
	gd->bd->bi_flashoffset = 0;

	#if defined(CONFIG_SYS_RAMBOOT)
	mtdcr(EBC0_CFGADDR, PB3CR);
	#else
	mtdcr(EBC0_CFGADDR, PB0CR);
	#endif
	pbcr = mfdcr(EBC0_CFGDATA);
	size_val = ffs(gd->bd->bi_flashsize) - 21;
	pbcr = (pbcr & 0x0001ffff) \| gd->bd->bi_flashstart \| (size_val << 17);
	#if defined(CONFIG_SYS_RAMBOOT)
	mtdcr(EBC0_CFGADDR, PB3CR);
	#else
	mtdcr(EBC0_CFGADDR, PB0CR);
	#endif
	mtdcr(EBC0_CFGDATA, pbcr);

	/*
	* Re-check to get correct base address
	*/
	flash_get_size(gd->bd->bi_flashstart, 0);

	#ifdef CONFIG_ENV_IS_IN_FLASH
	/* Monitor protection ON by default */
	(void)flash_protect(FLAG_PROTECT_SET,
	-CONFIG_SYS_MONITOR_LEN,
	0xffffffff,
	&flash_info[0]);

	/* Env protection ON by default */
	(void)flash_protect(FLAG_PROTECT_SET,
	CONFIG_ENV_ADDR_REDUND,
	CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
	&flash_info[0]);
	#endif
	#endif /* CONFIG_SYS_NO_FLASH */

	/*
	* USB suff...
	*/
	#ifdef CONFIG_440EPX
	if (act == NULL \|\| strcmp(act, "hostdev") == 0) {
	/* SDR Setting */
	mfsdr(SDR0_PFC1, sdr0_pfc1);
	mfsdr(SDR0_USB2D0CR, usb2d0cr);
	mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
	mfsdr(SDR0_USB2H0CR, usb2h0cr);

	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_DVBUS_PURDIS;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_DWNSTR_HOST;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_UTMICN_HOST;

	/*
	* An 8-bit/60MHz interface is the only possible alternative
	* when connecting the Device to the PHY
	*/
	usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
	usb2h0cr = usb2h0cr \| SDR0_USB2H0CR_WDINT_16BIT_30MHZ;

	/*
	* To enable the USB 2.0 Device function
	* through the UTMI interface
	*/
	usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
	usb2d0cr = usb2d0cr \| SDR0_USB2D0CR_USB2DEV_SELECTION;

	sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
	sdr0_pfc1 = sdr0_pfc1 \| SDR0_PFC1_UES_USB2D_SEL;

	mtsdr(SDR0_PFC1, sdr0_pfc1);
	mtsdr(SDR0_USB2D0CR, usb2d0cr);
	mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
	mtsdr(SDR0_USB2H0CR, usb2h0cr);

	/clear resets/
	udelay (1000);
	mtsdr(SDR0_SRST1, 0x00000000);
	udelay (1000);
	mtsdr(SDR0_SRST0, 0x00000000);

	printf("USB: Host(int phy) Device(ext phy)\n");

	} else if (strcmp(act, "dev") == 0) {
	/-------------------PATCH-------------------------------/
	mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);

	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_DVBUS_PURDIS;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_DWNSTR_HOST;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_UTMICN_HOST;
	mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);

	udelay (1000);
	mtsdr(SDR0_SRST1, 0x672c6000);

	udelay (1000);
	mtsdr(SDR0_SRST0, 0x00000080);

	udelay (1000);
	mtsdr(SDR0_SRST1, 0x60206000);

	(unsigned int )(0xe0000350) = 0x00000001;

	udelay (1000);
	mtsdr(SDR0_SRST1, 0x60306000);
	/-------------------PATCH-------------------------------/

	/* SDR Setting */
	mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
	mfsdr(SDR0_USB2H0CR, usb2h0cr);
	mfsdr(SDR0_USB2D0CR, usb2d0cr);
	mfsdr(SDR0_PFC1, sdr0_pfc1);

	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_DVBUS_PUREN;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_DWNSTR_DEV;
	usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
	usb2phy0cr = usb2phy0cr \| SDR0_USB2PHY0CR_UTMICN_DEV;

	usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
	usb2h0cr = usb2h0cr \| SDR0_USB2H0CR_WDINT_8BIT_60MHZ;

	usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
	usb2d0cr = usb2d0cr \| SDR0_USB2D0CR_EBC_SELECTION;

	sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
	sdr0_pfc1 = sdr0_pfc1 \| SDR0_PFC1_UES_EBCHR_SEL;

	mtsdr(SDR0_USB2H0CR, usb2h0cr);
	mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
	mtsdr(SDR0_USB2D0CR, usb2d0cr);
	mtsdr(SDR0_PFC1, sdr0_pfc1);

	/* clear resets */
	udelay (1000);
	mtsdr(SDR0_SRST1, 0x00000000);
	udelay (1000);
	mtsdr(SDR0_SRST0, 0x00000000);

	printf("USB: Device(int phy)\n");
	}
	#endif /* CONFIG_440EPX */

	mfsdr(SDR0_SRST1, reg); /* enable security/kasumi engines */
	reg &= ~(SDR0_SRST1_CRYP0 \| SDR0_SRST1_KASU0);
	mtsdr(SDR0_SRST1, reg);

	/*
	* Clear PLB4A0_ACR[WRP]
	* This fix will make the MAL burst disabling patch for the Linux
	* EMAC driver obsolete.
	*/
	reg = mfdcr(PLB4A0_ACR) & ~PLB4Ax_ACR_WRP_MASK;
	mtdcr(PLB4A0_ACR, reg);

	return 0;
	}

	int checkboard(void)
	{
	char buf[64];
	int i = getenv_f("serial#", buf, sizeof(buf));
	u8 rev;
	u32 clock = get_async_pci_freq();

	#ifdef CONFIG_440EPX
	printf("Board: Sequoia - AMCC PPC440EPx Evaluation Board");
	#else
	printf("Board: Rainier - AMCC PPC440GRx Evaluation Board");
	#endif

	rev = in_8((void *)(CONFIG_SYS_BCSR_BASE + 0));
	printf(", Rev. %X, PCI-Async=%d MHz", rev, clock / 1000000);

	if (i > 0) {
	puts(", serial# ");
	puts(buf);
	}
	putc('\n');

	/*
	* Reconfiguration of the PCI sync clock is already done,
	* now check again if everything is in range:
	*/
	if (ppc4xx_pci_sync_clock_config(clock)) {
	printf("ERROR: PCI clocking incorrect (async=%d "
	"sync=%ld)!\n", clock, get_PCI_freq());
	}

	return (0);
	}

	#if defined(CONFIG_PCI) && defined(CONFIG_PCI_PNP)
	/*
	* Assign interrupts to PCI devices.
	*/
	void board_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
	{
	pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, VECNUM_EIRQ2);
	}
	#endif

	#if defined(CONFIG_SYS_RAMBOOT)
	/*
	* On NAND-booting sequoia, we need to patch the chips select numbers
	* in the dtb (CS0 - NAND, CS3 - NOR)
	*/
	void ft_board_setup(void blob, bd_t bd)
	{
	int rc;
	int len;
	int nodeoffset;
	struct fdt_property *prop;
	u32 *reg;
	char path[32];

	/* First do common fdt setup */
	__ft_board_setup(blob, bd);

	/* And now configure NOR chip select to 3 instead of 0 */
	strcpy(path, "/plb/opb/ebc/nor_flash@0,0");
	nodeoffset = fdt_path_offset(blob, path);
	prop = fdt_get_property_w(blob, nodeoffset, "reg", &len);
	if (prop == NULL) {
	printf("Unable to update NOR chip select for NAND booting\n");
	return;
	}
	reg = (u32 *)&prop->data[0];
	reg[0] = 3;
	rc = fdt_find_and_setprop(blob, path, "reg", reg, 3 * sizeof(u32), 1);
	if (rc) {
	printf("Unable to update property NOR mappings, err=%s\n",
	fdt_strerror(rc));
	return;
	}

	/* And now configure NAND chip select to 0 instead of 3 */
	strcpy(path, "/plb/opb/ebc/ndfc@3,0");
	nodeoffset = fdt_path_offset(blob, path);
	prop = fdt_get_property_w(blob, nodeoffset, "reg", &len);
	if (prop == NULL) {
	printf("Unable to update NDFC chip select for NAND booting\n");
	return;
	}
	reg = (u32 *)&prop->data[0];
	reg[0] = 0;
	rc = fdt_find_and_setprop(blob, path, "reg", reg, 3 * sizeof(u32), 1);
	if (rc) {
	printf("Unable to update property NDFC mappings, err=%s\n",
	fdt_strerror(rc));
	return;
	}
	}
	#endif /* CONFIG_SYS_RAMBOOT */