ppc4xx: Cleanup PMC440 board support

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>

2 files changed, 132 insertions, 148 deletions

diff --git a/board/esd/pmc440/cmd_pmc440.c b/board/esd/pmc440/cmd_pmc440.c
index 350af48638..e9e9746b81 100644
--- a/board/esd/pmc440/cmd_pmc440.c
+++ b/board/esd/pmc440/cmd_pmc440.c
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2007
+ * (C) Copyright 2007-2008
  * Matthias Fuchs, esd Gmbh, matthias.fuchs@esd-electronics.com.
  *
  * See file CREDITS for list of people who contributed to this
@@ -21,7 +21,6 @@
  * MA 02111-1307 USA
  *
  */
-
 #include <common.h>
 #include <command.h>
 #include <asm/io.h>
@@ -31,7 +30,8 @@
 #include "pmc440.h"
 
 int is_monarch(void);
-int bootstrap_eeprom_write(unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
+int bootstrap_eeprom_write(unsigned dev_addr, unsigned offset,
+			   uchar *buffer, unsigned cnt);
 int eeprom_write_enable(unsigned dev_addr, int state);
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -64,7 +64,6 @@ int fpga_interrupt(u32 arg)
 	return rc;
 }
 
-
 int do_waithci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
@@ -100,7 +99,6 @@ U_BOOT_CMD(
 	NULL
 	);
 
-
 void dump_fifo(pmc440_fpga_t *fpga, int f, int *n)
 {
 	u32 ctrl;
@@ -117,7 +115,6 @@ void dump_fifo(pmc440_fpga_t *fpga, int f, int *n)
 	}
 }
 
-
 int do_fifo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
@@ -200,7 +197,8 @@ int do_fifo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 					got_fifoirq = 0;
 					/* unmask global fifo irq */
 					FPGA_OUT32(&fpga->hostctrl,
-						   HOSTCTRL_FIFOIE_GATE | HOSTCTRL_FIFOIE_FLAG);
+						   HOSTCTRL_FIFOIE_GATE |
+						   HOSTCTRL_FIFOIE_FLAG);
 				}
 			}
 
@@ -237,7 +235,8 @@ int do_fifo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 				for (i=0; i<n; i++)
 					FPGA_OUT32(&fpga->fifo[f].data, data);
 			} else {
-				printf("writing %d x %08x to fifo port at address %08x\n",
+				printf("writing %d x %08x to fifo port at "
+				       "address %08x\n",
 				       n, data, f);
 				for (i=0; i<n; i++)
 					out32(f, data);
@@ -263,10 +262,10 @@ U_BOOT_CMD(
 	"  - without arguments: print all fifo's status\n"
 	"  - with 'wait' argument: interrupt driven read from all fifos\n"
 	"  - with 'read' argument: read current contents from all fifos\n"
-	"  - with 'write' argument: write 'data' 'cnt' times to 'fifo' or 'address'\n"
+	"  - with 'write' argument: write 'data' 'cnt' times to "
+	"'fifo' or 'address'\n"
 	);
 
-
 int do_setup_bootstrap_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	ulong sdsdp[5];
@@ -301,10 +300,12 @@ int do_setup_bootstrap_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]
 			sdsdp[2]=0x40082350;
 			sdsdp[3]=0x0d050000;
 		} else if (!strcmp(argv[1], "test")) {
-			/* TODO: this will replace the 667 MHz config above.
+			/*
+			 * TODO: this will replace the 667 MHz config above.
 			 * But it needs some more testing on a real 667 MHz CPU.
 			 */
-			printf("Bootstrapping for test (667MHz PLB=133PLB PLB/PCI=3)\n");
+			printf("Bootstrapping for test"
+			       " (667MHz PLB=133PLB PLB/PCI=3)\n");
 			sdsdp[0]=0x8778a256;
 			sdsdp[1]=0x095fa030;
 			sdsdp[2]=0x40082350;
@@ -347,7 +348,6 @@ U_BOOT_CMD(
 	"<cpufreq:400|533|667> [<console-uart:0|1> [<bringup delay (0..20s)>]]"
 	);
 
-
 #if defined(CONFIG_PRAM)
 #include <environment.h>
 extern env_t *env_ptr;
@@ -394,7 +394,6 @@ U_BOOT_CMD(
 	);
 #endif /* CONFIG_PRAM */
 
-
 int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	if (argc > 1) {
@@ -423,7 +422,6 @@ U_BOOT_CMD(
 	NULL
 	);
 
-
 int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
@@ -444,7 +442,8 @@ int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 			/* deassert */
 			printf("PMC-RESETOUT# deasserted\n");
 			FPGA_OUT32(&fpga->hostctrl,
-				   HOSTCTRL_PMCRSTOUT_GATE | HOSTCTRL_PMCRSTOUT_FLAG);
+				   HOSTCTRL_PMCRSTOUT_GATE |
+				   HOSTCTRL_PMCRSTOUT_FLAG);
 		}
 	} else {
 		printf("PMC-RESETOUT# is %s\n",
@@ -460,7 +459,6 @@ U_BOOT_CMD(
 	NULL
 	);
 
-
 int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	if (is_monarch()) {
@@ -481,7 +479,9 @@ int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 				 in_be32((void*)GPIO1_TCR) & ~GPIO1_INTA_FAKE);
 		}
 	} else {
-		printf("inta# is %s\n", in_be32((void*)GPIO1_TCR) & GPIO1_INTA_FAKE ? "active" : "inactive");
+		printf("inta# is %s\n",
+		       in_be32((void*)GPIO1_TCR) & GPIO1_INTA_FAKE ?
+		       "active" : "inactive");
 	}
 	return 0;
 }
@@ -491,7 +491,6 @@ U_BOOT_CMD(
 	NULL
 	);
 
-
 /* test-only */
 int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
@@ -503,11 +502,17 @@ int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 		pciaddr &= 0xf0000000;
 
 		/* map PCI address at 0xc0000000 in PLB space */
-		out32r(PCIX0_PMM1MA, 0x00000000); /* PMM1 Mask/Attribute - disabled b4 setting */
-		out32r(PCIX0_PMM1LA, 0xc0000000); /* PMM1 Local Address */
-		out32r(PCIX0_PMM1PCILA, pciaddr); /* PMM1 PCI Low Address */
-		out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM1 PCI High Address */
-		out32r(PCIX0_PMM1MA, 0xf0000001); /* 256MB + No prefetching, and enable region */
+
+                /* PMM1 Mask/Attribute - disabled b4 setting */
+		out32r(PCIX0_PMM1MA, 0x00000000);
+                /* PMM1 Local Address */
+		out32r(PCIX0_PMM1LA, 0xc0000000);
+                /* PMM1 PCI Low Address */
+		out32r(PCIX0_PMM1PCILA, pciaddr);
+                /* PMM1 PCI High Address */
+		out32r(PCIX0_PMM1PCIHA, 0x00000000);
+                /* 256MB + No prefetching, and enable region */
+		out32r(PCIX0_PMM1MA, 0xf0000001);
 	} else {
 		printf("Usage:\npmm %s\n", cmdtp->help);
 	}
diff --git a/board/esd/pmc440/pmc440.c b/board/esd/pmc440/pmc440.c
index f1cfef2808..7fadc42bc2 100644
--- a/board/esd/pmc440/pmc440.c
+++ b/board/esd/pmc440/pmc440.c
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2007
+ * (C) Copyright 2007-2008
  * Matthias Fuchs, esd gmbh, matthias.fuchs@esd-electronics.com.
  * Based on board/amcc/sequoia/sequoia.c
  *
@@ -32,6 +32,7 @@
 #include <ppc440.h>
 #include <asm/processor.h>
 #include <asm/io.h>
+#include <asm/bitops.h>
 #include <command.h>
 #include <i2c.h>
 #ifdef CONFIG_RESET_PHY_R
@@ -43,12 +44,12 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
+extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
 
 ulong flash_get_size(ulong base, int banknum);
 int pci_is_66mhz(void);
-int bootstrap_eeprom_read(unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
-
+int bootstrap_eeprom_read(unsigned dev_addr, unsigned offset,
+			  uchar *buffer, unsigned cnt);
 
 struct serial_device *default_serial_console(void)
 {
@@ -70,7 +71,8 @@ struct serial_device *default_serial_console(void)
 		/* mark scratchreg valid */
 		scratchreg = (scratchreg & 0xffffff00) | 0x80;
 
-		i = bootstrap_eeprom_read(CFG_I2C_BOOT_EEPROM_ADDR, 0x10, buf, 4);
+		i = bootstrap_eeprom_read(CFG_I2C_BOOT_EEPROM_ADDR,
+					  0x10, buf, 4);
 		if ((i != -1) && (buf[0] == 0x19) && (buf[1] == 0x75)) {
 			scratchreg |= buf[2];
 
@@ -99,10 +101,10 @@ int board_early_init_f(void)
 	mtdcr(ebccfga, xbcfg);
 	mtdcr(ebccfgd, 0xf8400000);
 
-	/*--------------------------------------------------------------------
+	/*
 	 * Setup the GPIO pins
 	 * TODO: setup GPIOs via CFG_4xx_GPIO_TABLE in board's config file
-	 *-------------------------------------------------------------------*/
+	 */
 	out32(GPIO0_OR,    0x40000002);
 	out32(GPIO0_TCR,   0x4c90011f);
 	out32(GPIO0_OSRL,  0x28011400);
@@ -141,9 +143,9 @@ int board_early_init_f(void)
 		mtspr(dbcr0, 0x20000000); /* do chip reset */
 	}
 
-	/*--------------------------------------------------------------------
+	/*
 	 * 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 */
@@ -170,9 +172,11 @@ int board_early_init_f(void)
 
 	/* select Ethernet pins */
 	mfsdr(SDR0_PFC1, sdr0_pfc1);
-	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) | SDR0_PFC1_SELECT_CONFIG_4;
+	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
+		SDR0_PFC1_SELECT_CONFIG_4;
 	mfsdr(SDR0_PFC2, sdr0_pfc2);
-	sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) | SDR0_PFC2_SELECT_CONFIG_4;
+	sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
+		SDR0_PFC2_SELECT_CONFIG_4;
 
 	/* enable 2nd IIC */
 	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_IIC1_SEL;
@@ -192,9 +196,9 @@ int board_early_init_f(void)
 	return 0;
 }
 
-/*---------------------------------------------------------------------------+
-  | misc_init_r.
-  +---------------------------------------------------------------------------*/
+/*
+ * misc_init_r.
+ */
 int misc_init_r(void)
 {
 	uint pbcr;
@@ -221,32 +225,7 @@ int misc_init_r(void)
 	mtdcr(ebccfga, pb0cr);
 #endif
 	pbcr = mfdcr(ebccfgd);
-	switch (gd->bd->bi_flashsize) {
-	case 1 << 20:
-		size_val = 0;
-		break;
-	case 2 << 20:
-		size_val = 1;
-		break;
-	case 4 << 20:
-		size_val = 2;
-		break;
-	case 8 << 20:
-		size_val = 3;
-		break;
-	case 16 << 20:
-		size_val = 4;
-		break;
-	case 32 << 20:
-		size_val = 5;
-		break;
-	case 64 << 20:
-		size_val = 6;
-		break;
-	case 128 << 20:
-		size_val = 7;
-		break;
-	}
+	size_val = ffs(gd->bd->bi_flashsize) - 21;
 	pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
 #if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
 	mtdcr(ebccfga, pb2cr);
@@ -286,20 +265,22 @@ int misc_init_r(void)
 		mfsdr(SDR0_USB2H0CR, usb2h0cr);
 
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;	/*0*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ;	/*1*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;		/*0*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;		/*1*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;		/*1*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
 
-		/* An 8-bit/60MHz interface is the only possible alternative
-		   when connecting the Device to the PHY */
+		/*
+		 * 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;	/*1*/
+		usb2h0cr   = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ;
 
 		usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
 		sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
@@ -309,7 +290,7 @@ int misc_init_r(void)
 		mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
 		mtsdr(SDR0_USB2H0CR, usb2h0cr);
 
-		/*clear resets*/
+		/* clear resets */
 		udelay(1000);
 		mtsdr(SDR0_SRST1, 0x00000000);
 		udelay(1000);
@@ -317,18 +298,18 @@ int misc_init_r(void)
 
 		printf("USB:   Host\n");
 
-	} else if ((strcmp(act, "dev") == 0) || (in_be32((void*)GPIO0_IR) & GPIO0_USB_PRSNT)) {
-		/*-------------------PATCH-------------------------------*/
+	} else if ((strcmp(act, "dev") == 0) ||
+		   (in_be32((void*)GPIO0_IR) & GPIO0_USB_PRSNT)) {
 		mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
 
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;	/*0*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;		/*0*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;		/*1*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;		/*1*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
 		mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
 
 		udelay (1000);
@@ -344,7 +325,6 @@ int misc_init_r(void)
 
 		udelay (1000);
 		mtsdr(SDR0_SRST1, 0x60306000);
-		/*-------------------PATCH-------------------------------*/
 
 		/* SDR Setting */
 		mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
@@ -353,23 +333,23 @@ int misc_init_r(void)
 		mfsdr(SDR0_PFC1, sdr0_pfc1);
 
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;	/*0*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ;	/*0*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN;		/*1*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_DEV;		/*0*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_DEV;
 		usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
-		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_DEV;		/*0*/
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_DEV;
 
 		usb2h0cr   = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
-		usb2h0cr   = usb2h0cr | SDR0_USB2H0CR_WDINT_8BIT_60MHZ;		/*0*/
+		usb2h0cr   = usb2h0cr | SDR0_USB2H0CR_WDINT_8BIT_60MHZ;
 
 		usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
 
 		sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
-		sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_EBCHR_SEL;		/*1*/
+		sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_EBCHR_SEL;
 
 		mtsdr(SDR0_USB2H0CR, usb2h0cr);
 		mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
@@ -453,43 +433,42 @@ void pmc440_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
 }
 #endif
 
-/*************************************************************************
- *  pci_pre_init
- *
- *  This routine is called just prior to registering the hose and gives
- *  the board the opportunity to check things. Returning a value of zero
- *  indicates that things are bad & PCI initialization should be aborted.
+/*
+ * pci_pre_init
  *
- *	Different boards may wish to customize the pci controller structure
- *	(add regions, override default access routines, etc) or perform
- *	certain pre-initialization actions.
+ * This routine is called just prior to registering the hose and gives
+ * the board the opportunity to check things. Returning a value of zero
+ * indicates that things are bad & PCI initialization should be aborted.
  *
- ************************************************************************/
+ * Different boards may wish to customize the pci controller structure
+ * (add regions, override default access routines, etc) or perform
+ * certain pre-initialization actions.
+ */
 #if defined(CONFIG_PCI)
 int pci_pre_init(struct pci_controller *hose)
 {
 	unsigned long addr;
 
-	/*-------------------------------------------------------------------------+
-	  | Set priority for all PLB3 devices to 0.
-	  | Set PLB3 arbiter to fair mode.
-	  +-------------------------------------------------------------------------*/
+	/*
+	 * Set priority for all PLB3 devices to 0.
+	 * Set PLB3 arbiter to fair mode.
+	 */
 	mfsdr(sdr_amp1, addr);
 	mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
 	addr = mfdcr(plb3_acr);
 	mtdcr(plb3_acr, addr | 0x80000000);
 
-	/*-------------------------------------------------------------------------+
-	  | Set priority for all PLB4 devices to 0.
-	  +-------------------------------------------------------------------------*/
+	/*
+	 * Set priority for all PLB4 devices to 0.
+	 */
 	mfsdr(sdr_amp0, addr);
 	mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
 	addr = mfdcr(plb4_acr) | 0xa0000000;	/* Was 0x8---- */
 	mtdcr(plb4_acr, addr);
 
-	/*-------------------------------------------------------------------------+
-	  | Set Nebula PLB4 arbiter to fair mode.
-	  +-------------------------------------------------------------------------*/
+	/*
+	 * Set Nebula PLB4 arbiter to fair mode.
+	 */
 	/* Segment0 */
 	addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
 	addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
@@ -586,10 +565,10 @@ void pci_target_init(struct pci_controller *hose)
 	pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID,
 			      CFG_PCI_SUBSYS_VENDORID);
 
-#if 0   /* disabled for PMC405 backward compatibility */
+        /* disabled for PMC405 backward compatibility */
 	/* Configure command register as bus master */
-	pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER);
-#endif
+	/* pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER); */
+
 
 	/* 240nS PCI clock */
 	pci_write_config_word(0, PCI_LATENCY_TIMER, 1);
@@ -621,20 +600,19 @@ void pci_target_init(struct pci_controller *hose)
 }
 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
 
-/*************************************************************************
- *  pci_master_init
- *
- ************************************************************************/
+/*
+ * pci_master_init
+ */
 #if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT)
 void pci_master_init(struct pci_controller *hose)
 {
 	unsigned short temp_short;
 
-	/*--------------------------------------------------------------------------+
-	  | Write the PowerPC440 EP PCI Configuration regs.
-	  |   Enable PowerPC440 EP to be a master on the PCI bus (PMM).
-	  |   Enable PowerPC440 EP to act as a PCI memory target (PTM).
-	  +--------------------------------------------------------------------------*/
+	/*
+	 * Write the PowerPC440 EP PCI Configuration regs.
+	 * Enable PowerPC440 EP to be a master on the PCI bus (PMM).
+	 * Enable PowerPC440 EP to act as a PCI memory target (PTM).
+	 */
 	if (is_monarch()) {
 		pci_read_config_word(0, PCI_COMMAND, &temp_short);
 		pci_write_config_word(0, PCI_COMMAND,
@@ -644,7 +622,6 @@ void pci_master_init(struct pci_controller *hose)
 }
 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */
 
-
 static void wait_for_pci_ready(void)
 {
 	int i;
@@ -671,22 +648,19 @@ static void wait_for_pci_ready(void)
 	}
 }
 
-
-/*************************************************************************
- *  is_pci_host
- *
- *	This routine is called to determine if a pci scan should be
- *	performed. With various hardware environments (especially cPCI and
- *	PPMC) it's insufficient to depend on the state of the arbiter enable
- *	bit in the strap register, or generic host/adapter assumptions.
- *
- *	Rather than hard-code a bad assumption in the general 440 code, the
- *	440 pci code requires the board to decide at runtime.
+/*
+ * is_pci_host
  *
- *	Return 0 for adapter mode, non-zero for host (monarch) mode.
+ * This routine is called to determine if a pci scan should be
+ * performed. With various hardware environments (especially cPCI and
+ * PPMC) it's insufficient to depend on the state of the arbiter enable
+ * bit in the strap register, or generic host/adapter assumptions.
  *
+ * Rather than hard-code a bad assumption in the general 440 code, the
+ * 440 pci code requires the board to decide at runtime.
  *
- ************************************************************************/
+ * Return 0 for adapter mode, non-zero for host (monarch) mode.
+ */
 #if defined(CONFIG_PCI)
 int is_pci_host(struct pci_controller *hose)
 {
@@ -703,6 +677,7 @@ int is_pci_host(struct pci_controller *hose)
 	return 0;
 }
 #endif /* defined(CONFIG_PCI) */
+
 #if defined(CONFIG_POST)
 /*
  * Returns 1 if keys pressed to start the power-on long-running tests
@@ -714,7 +689,6 @@ int post_hotkeys_pressed(void)
 }
 #endif /* CONFIG_POST */
 
-
 #ifdef CONFIG_RESET_PHY_R
 void reset_phy(void)
 {
@@ -735,17 +709,19 @@ void reset_phy(void)
 #endif
 
 #if defined(CFG_EEPROM_WREN)
-/* Input: <dev_addr>  I2C address of EEPROM device to enable.
- *         <state>     -1: deliver current state
+/*
+ *  Input: <dev_addr> I2C address of EEPROM device to enable.
+ *         <state>    -1: deliver current state
  *	               0: disable write
  *		       1: enable write
- *  Returns:           -1: wrong device address
- *                      0: dis-/en- able done
+ *  Returns:          -1: wrong device address
+ *                     0: dis-/en- able done
  *		     0/1: current state if <state> was -1.
  */
 int eeprom_write_enable(unsigned dev_addr, int state)
 {
-	if ((CFG_I2C_EEPROM_ADDR != dev_addr) && (CFG_I2C_BOOT_EEPROM_ADDR != dev_addr)) {
+	if ((CFG_I2C_EEPROM_ADDR != dev_addr) &&
+	    (CFG_I2C_BOOT_EEPROM_ADDR != dev_addr)) {
 		return -1;
 	} else {
 		switch (state) {
@@ -769,9 +745,9 @@ int eeprom_write_enable(unsigned dev_addr, int state)
 }
 #endif /* #if defined(CFG_EEPROM_WREN) */
 
-
 #define CFG_BOOT_EEPROM_PAGE_WRITE_BITS 3
-int bootstrap_eeprom_write(unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt)
+int bootstrap_eeprom_write(unsigned dev_addr, unsigned offset,
+			   uchar *buffer, unsigned cnt)
 {
 	unsigned end = offset + cnt;
 	unsigned blk_off;
@@ -780,7 +756,8 @@ int bootstrap_eeprom_write(unsigned dev_addr, unsigned offset, uchar *buffer, un
 #if defined(CFG_EEPROM_WREN)
 	eeprom_write_enable(dev_addr, 1);
 #endif
-	/* Write data until done or would cross a write page boundary.
+	/*
+	 * Write data until done or would cross a write page boundary.
 	 * We must write the address again when changing pages
 	 * because the address counter only increments within a page.
 	 */
@@ -802,7 +779,8 @@ int bootstrap_eeprom_write(unsigned dev_addr, unsigned offset, uchar *buffer, un
 #define	BOOT_EEPROM_PAGE_SIZE	   (1 << CFG_BOOT_EEPROM_PAGE_WRITE_BITS)
 #define	BOOT_EEPROM_PAGE_OFFSET(x) ((x) & (BOOT_EEPROM_PAGE_SIZE - 1))
 
-		maxlen = BOOT_EEPROM_PAGE_SIZE - BOOT_EEPROM_PAGE_OFFSET(blk_off);
+		maxlen = BOOT_EEPROM_PAGE_SIZE -
+			BOOT_EEPROM_PAGE_OFFSET(blk_off);
 		if (maxlen > I2C_RXTX_LEN)
 			maxlen = I2C_RXTX_LEN;
 
@@ -825,14 +803,15 @@ int bootstrap_eeprom_write(unsigned dev_addr, unsigned offset, uchar *buffer, un
 	return rcode;
 }
 
-
-int bootstrap_eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt)
+int bootstrap_eeprom_read (unsigned dev_addr, unsigned offset,
+			   uchar *buffer, unsigned cnt)
 {
 	unsigned end = offset + cnt;
 	unsigned blk_off;
 	int rcode = 0;
 
-	/* Read data until done or would cross a page boundary.
+	/*
+	 * Read data until done or would cross a page boundary.
 	 * We must write the address again when changing pages
 	 * because the next page may be in a different device.
 	 */
@@ -866,7 +845,6 @@ int bootstrap_eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, un
 	return rcode;
 }
 
-
 #if defined(CONFIG_USB_OHCI_NEW) && defined(CFG_USB_OHCI_BOARD_INIT)
 int usb_board_init(void)
 {
@@ -876,7 +854,8 @@ int usb_board_init(void)
 	if ((act == NULL || strcmp(act, "hostdev") == 0) &&
 	    !(in_be32((void*)GPIO0_IR) & GPIO0_USB_PRSNT))
 		/* enable power on USB socket */
-		out_be32((void*)GPIO1_OR, in_be32((void*)GPIO1_OR) & ~GPIO1_USB_PWR_N);
+		out_be32((void*)GPIO1_OR,
+			 in_be32((void*)GPIO1_OR) & ~GPIO1_USB_PWR_N);
 
 	for (i=0; i<1000; i++)
 		udelay(1000);