8xx, kup4k/kup4x: configuration changes, code cleanup

- nfs-options removed
- hda->sda changed
- mtd parts added
- loadaddress changed
- cmd-line length increased
- lcd stuff removed
- code cleanup (use I/O accessors etc.)

Signed-off-by: Klaus Heydeck <heydeck@kieback-peter.de>

1 files changed, 77 insertions, 188 deletions

diff --git a/board/kup/kup4x/kup4x.c b/board/kup/kup4x/kup4x.c
index 65a222b..1686eff 100644
--- a/board/kup/kup4x/kup4x.c
+++ b/board/kup/kup4x/kup4x.c
@@ -26,28 +26,8 @@
 #include <mpc8xx.h>
 #include <post.h>
 #include "../common/kup.h"
-#ifdef CONFIG_KUP4K_LOGO
-/* #include "s1d13706.h" */
-#endif
-
-#define KUP4X_USB
-
-
-typedef struct {
-	volatile unsigned char *VmemAddr;
-	volatile unsigned char *RegAddr;
-} FB_INFO_S1D13xxx;
-
-/* ------------------------------------------------------------------------- */
-
-int usb_init_kup4x (void);
-
+#include <asm/io.h>
 
-#ifdef CONFIG_KUP4K_LOGO
-void lcd_logo (bd_t * bd);
-#endif
-
-/* ------------------------------------------------------------------------- */
 
 #define	_NOT_USED_	0xFFFFFFFF
 
@@ -106,207 +86,116 @@ const uint sdram_table[] = {
 	_NOT_USED_, _NOT_USED_, _NOT_USED_,
 };
 
-/* ------------------------------------------------------------------------- */
 
 /*
  * Check Board Identity:
  */
 
-int checkboard (void)
+int checkboard(void)
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 	volatile memctl8xx_t *memctl = &immap->im_memctl;
-	volatile uchar *latch;
-	uchar rev, mod;
+	uchar latch, rev, mod;
 
 	/*
 	 * Init ChipSelect #4 (CAN + HW-Latch)
 	 */
-	memctl->memc_or4 = 0xFFFF8926;
-	memctl->memc_br4 = 0x90000401;
-	__asm__ ("eieio");
-	latch = (volatile uchar *) 0x90000200;
-	rev = (*latch & 0xF8) >> 3;
-	mod = (*latch & 0x03);
-	printf ("Board: KUP4X Rev %d.%d\n",rev,mod);
-	return (0);
+	out_be32(&memctl->memc_or4, 0xFFFF8926);
+	out_be32(&memctl->memc_br4, 0x90000401);
+
+	latch = in_8( (unsigned char *) LATCH_ADDR);
+	rev = (latch & 0xF8) >> 3;
+	mod = (latch & 0x03);
+
+	printf("Board: KUP4X Rev %d.%d\n", rev, mod);
+
+	return 0;
 }
 
-/* ------------------------------------------------------------------------- */
 
-phys_size_t initdram (int board_type)
+phys_size_t initdram(int board_type)
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 	volatile memctl8xx_t *memctl = &immap->im_memctl;
-	long int size_b0 = 0;
-	long int size_b1 = 0;
-	long int size_b2 = 0;
-	long int size_b3 = 0;
 
-	upmconfig (UPMA, (uint *) sdram_table,
+	upmconfig(UPMA, (uint *) sdram_table,
 		   sizeof (sdram_table) / sizeof (uint));
-	/*
-	 * Preliminary prescaler for refresh (depends on number of
-	 * banks): This value is selected for four cycles every 62.4 us
-	 * with two SDRAM banks or four cycles every 31.2 us with one
-	 * bank. It will be adjusted after memory sizing.
-	 */
-	memctl->memc_mptpr = CONFIG_SYS_MPTPR;
 
-	memctl->memc_mar = 0x00000088;
+	out_be16(&memctl->memc_mptpr, CONFIG_SYS_MPTPR);
 
-	/*
-	 * Map controller banks 1 and 2 to the SDRAM banks 2 and 3 at
-	 * preliminary addresses - these have to be modified after the
-	 * SDRAM size has been determined.
-	 */
-/*	memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM;	*/
-/*	memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM;	*/
+	out_be32(&memctl->memc_mar, 0x00000088);
 
-/*	memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM;	*/
-/*	memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM;	*/
+	out_be32(&memctl->memc_mamr,
+		 CONFIG_SYS_MAMR & (~(MAMR_PTAE))); /* no refresh yet */
 
-	memctl->memc_mamr = CONFIG_SYS_MAMR & (~(MAMR_PTAE));	/* no refresh yet */
-
-	udelay (200);
+	udelay(200);
 
 	/* perform SDRAM initializsation sequence */
 
-	memctl->memc_mcr = 0x80002105;	/* SDRAM bank 0 */
-	udelay (1);
-	memctl->memc_mcr = 0x80002830;	/* SDRAM bank 0 - execute twice */
-	udelay (1);
-	memctl->memc_mcr = 0x80002106;	/* SDRAM bank 0 - RUN MRS Pattern from loc 6 */
-	udelay (1);
-
-	memctl->memc_mcr = 0x80004105;	/* SDRAM bank 1 */
-	udelay (1);
-	memctl->memc_mcr = 0x80004830;	/* SDRAM bank 1 - execute twice */
-	udelay (1);
-	memctl->memc_mcr = 0x80004106;	/* SDRAM bank 1 - RUN MRS Pattern from loc 6 */
-	udelay (1);
-
-	memctl->memc_mcr = 0x80006105;	/* SDRAM bank 2 */
-	udelay (1);
-	memctl->memc_mcr = 0x80006830;	/* SDRAM bank 2 - execute twice */
-	udelay (1);
-	memctl->memc_mcr = 0x80006106;	/* SDRAM bank 2 - RUN MRS Pattern from loc 6 */
-	udelay (1);
-
-	memctl->memc_mcr = 0x8000C105;	/* SDRAM bank 2 */
-	udelay (1);
-	memctl->memc_mcr = 0x8000C830;	/* SDRAM bank 2 - execute twice */
-	udelay (1);
-	memctl->memc_mcr = 0x8000C106;	/* SDRAM bank 2 - RUN MRS Pattern from loc 6 */
-	udelay (1);
-
-	memctl->memc_mamr |= MAMR_PTAE;	/* enable refresh */
-	udelay (1000);
-#if 0				/* 4 x 8MB */
-	size_b0 = 0x00800000;
-	size_b1 = 0x00800000;
-	size_b2 = 0x00800000;
-	size_b3 = 0x00800000;
-	memctl->memc_mptpr = CONFIG_SYS_MPTPR;
-	udelay (1000);
-	memctl->memc_or1 = 0xFF800A00;
-	memctl->memc_br1 = 0x00000081;
-	memctl->memc_or2 = 0xFF000A00;
-	memctl->memc_br2 = 0x00800081;
-	memctl->memc_or3 = 0xFE000A00;
-	memctl->memc_br3 = 0x01000081;
-	memctl->memc_or6 = 0xFE000A00;
-	memctl->memc_br6 = 0x01800081;
-#else  /* 4 x 16 MB */
-	size_b0 = 0x01000000;
-	size_b1 = 0x01000000;
-	size_b2 = 0x01000000;
-	size_b3 = 0x01000000;
-	memctl->memc_mptpr = CONFIG_SYS_MPTPR;
-	udelay (1000);
-	memctl->memc_or1 = 0xFF000A00;
-	memctl->memc_br1 = 0x00000081;
-	memctl->memc_or2 = 0xFE000A00;
-	memctl->memc_br2 = 0x01000081;
-	memctl->memc_or3 = 0xFD000A00;
-	memctl->memc_br3 = 0x02000081;
-	memctl->memc_or6 = 0xFC000A00;
-	memctl->memc_br6 = 0x03000081;
-#endif
-	udelay (10000);
-
-	return (size_b0 + size_b1 + size_b2 + size_b3);
+	/* SDRAM bank 0 */
+	out_be32(&memctl->memc_mcr, 0x80002105);
+	udelay(1);
+	out_be32(&memctl->memc_mcr, 0x80002830); /* execute twice */
+	udelay(1);
+	out_be32(&memctl->memc_mcr, 0x80002106); /* RUN MRS Pattern from loc 6 */
+	udelay(1);
+
+	/* SDRAM bank 1 */
+	out_be32(&memctl->memc_mcr, 0x80004105);
+	udelay(1);
+	out_be32(&memctl->memc_mcr, 0x80004830); /* execute twice */
+	udelay(1);
+	out_be32(&memctl->memc_mcr, 0x80004106); /* RUN MRS Pattern from loc 6 */
+	udelay(1);
+
+	/* SDRAM bank 2 */
+	out_be32(&memctl->memc_mcr, 0x80006105);
+	udelay(1);
+	out_be32(&memctl->memc_mcr, 0x80006830); /* execute twice */
+	udelay(1);
+	out_be32(&memctl->memc_mcr, 0x80006106); /* RUN MRS Pattern from loc 6 */
+	udelay(1);
+
+	/* SDRAM bank 3 */
+	out_be32(&memctl->memc_mcr, 0x8000C105);
+	udelay(1);
+	out_be32(&memctl->memc_mcr, 0x8000C830); /* execute twice */
+	udelay(1);
+	out_be32(&memctl->memc_mcr, 0x8000C106); /* RUN MRS Pattern from loc 6 */
+	udelay(1);
+
+	setbits_be32(&memctl->memc_mamr, MAMR_PTAE); /* enable refresh */
+
+	udelay(1000);
+	/* 4 x 16 MB */
+	out_be16(&memctl->memc_mptpr, CONFIG_SYS_MPTPR);
+	udelay(1000);
+	out_be32(&memctl->memc_or1, 0xFF000A00);
+	out_be32(&memctl->memc_br1, 0x00000081);
+	out_be32(&memctl->memc_or2, 0xFE000A00);
+	out_be32(&memctl->memc_br2, 0x01000081);
+	out_be32(&memctl->memc_or3, 0xFD000A00);
+	out_be32(&memctl->memc_br3, 0x02000081);
+	out_be32(&memctl->memc_or6, 0xFC000A00);
+	out_be32(&memctl->memc_br6, 0x03000081);
+	udelay(10000);
+
+	return (4 * 16 * 1024 * 1024);
 }
 
-/* ------------------------------------------------------------------------- */
-
-/*
- * Check memory range for valid RAM. A simple memory test determines
- * the actually available RAM size between addresses `base' and
- * `base + maxsize'. Some (not all) hardware errors are detected:
- * - short between address lines
- * - short between data lines
- */
-#if 0
-static long int dram_size (long int mamr_value, long int *base,
-			   long int maxsize)
+int misc_init_r(void)
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
-	volatile memctl8xx_t *memctl = &immap->im_memctl;
-	volatile long int *addr;
-	ulong cnt, val;
-	ulong save[32];		/* to make test non-destructive */
-	unsigned char i = 0;
-
-	memctl->memc_mamr = mamr_value;
-
-	for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
-		addr = base + cnt;	/* pointer arith! */
-
-		save[i++] = *addr;
-		*addr = ~cnt;
-	}
-
-	/* write 0 to base address */
-	addr = base;
-	save[i] = *addr;
-	*addr = 0;
-
-	/* check at base address */
-	if ((val = *addr) != 0) {
-		*addr = save[i];
-		return (0);
-	}
-
-	for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
-		addr = base + cnt;	/* pointer arith! */
-
-		val = *addr;
-		*addr = save[--i];
-
-		if (val != (~cnt)) {
-			return (cnt * sizeof (long));
-		}
-	}
-	return (maxsize);
-}
-#endif
 
-int misc_init_r (void)
-{
-	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 #ifdef CONFIG_IDE_LED
 	/* Configure PA8 as output port */
-	immap->im_ioport.iop_padir |= 0x80;
-	immap->im_ioport.iop_paodr |= 0x80;
-	immap->im_ioport.iop_papar &= ~0x80;
-	immap->im_ioport.iop_padat |= 0x80;	/* turn it off */
-#endif
-#ifdef KUP4X_USB
-	usb_init_kup4x ();
+	setbits_be16(&immap->im_ioport.iop_padir, PA_8);
+	setbits_be16(&immap->im_ioport.iop_paodr, PA_8);
+	clrbits_be16(&immap->im_ioport.iop_papar, PA_8);
+	setbits_be16(&immap->im_ioport.iop_padat, PA_8); /* turn it off */
 #endif
 	load_sernum_ethaddr();
-	setenv ("hw", "4x");
-	poweron_key ();
-	return (0);
+	setenv("hw", "4x");
+	poweron_key();
+	return 0;
 }