summaryrefslogtreecommitdiff
path: root/board/amcc/sequoia
diff options
context:
space:
mode:
Diffstat (limited to 'board/amcc/sequoia')
-rw-r--r--board/amcc/sequoia/init.S54
-rw-r--r--board/amcc/sequoia/sdram.h4
-rw-r--r--board/amcc/sequoia/sequoia.c83
3 files changed, 60 insertions, 81 deletions
diff --git a/board/amcc/sequoia/init.S b/board/amcc/sequoia/init.S
index 5fe3af9a09..ff6ae669ef 100644
--- a/board/amcc/sequoia/init.S
+++ b/board/amcc/sequoia/init.S
@@ -20,57 +20,9 @@
*/
#include <ppc_asm.tmpl>
+#include <asm-ppc/mmu.h>
#include <config.h>
-/* General */
-#define TLB_VALID 0x00000200
-#define _256M 0x10000000
-
-/* Supported page sizes */
-
-#define SZ_1K 0x00000000
-#define SZ_4K 0x00000010
-#define SZ_16K 0x00000020
-#define SZ_64K 0x00000030
-#define SZ_256K 0x00000040
-#define SZ_1M 0x00000050
-#define SZ_8M 0x00000060
-#define SZ_16M 0x00000070
-#define SZ_256M 0x00000090
-
-/* Storage attributes */
-#define SA_W 0x00000800 /* Write-through */
-#define SA_I 0x00000400 /* Caching inhibited */
-#define SA_M 0x00000200 /* Memory coherence */
-#define SA_G 0x00000100 /* Guarded */
-#define SA_E 0x00000080 /* Endian */
-
-/* Access control */
-#define AC_X 0x00000024 /* Execute */
-#define AC_W 0x00000012 /* Write */
-#define AC_R 0x00000009 /* Read */
-
-/* Some handy macros */
-
-#define EPN(e) ((e) & 0xfffffc00)
-#define TLB0(epn,sz) ( (EPN((epn)) | (sz) | TLB_VALID ) )
-#define TLB1(rpn,erpn) ( ((rpn)&0xfffffc00) | (erpn) )
-#define TLB2(a) ( (a)&0x00000fbf )
-
-#define tlbtab_start\
- mflr r1 ;\
- bl 0f ;
-
-#define tlbtab_end\
- .long 0, 0, 0 ; \
-0: mflr r0 ; \
- mtlr r1 ; \
- blr ;
-
-#define tlbentry(epn,sz,rpn,erpn,attr)\
- .long TLB0(epn,sz),TLB1(rpn,erpn),TLB2(attr)
-
-
/**************************************************************************
* TLB TABLE
*
@@ -98,7 +50,11 @@ tlbtab:
#endif
/* TLB-entry for DDR SDRAM (Up to 2GB) */
+#ifdef CONFIG_4xx_DCACHE
+ tlbentry( CFG_SDRAM_BASE, SZ_256M, CFG_SDRAM_BASE, 0, AC_R|AC_W|AC_X|SA_G)
+#else
tlbentry( CFG_SDRAM_BASE, SZ_256M, CFG_SDRAM_BASE, 0, AC_R|AC_W|AC_X|SA_G|SA_I )
+#endif
#ifdef CFG_INIT_RAM_DCACHE
/* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
diff --git a/board/amcc/sequoia/sdram.h b/board/amcc/sequoia/sdram.h
index 7f847aa2ad..6a7bf01efb 100644
--- a/board/amcc/sequoia/sdram.h
+++ b/board/amcc/sequoia/sdram.h
@@ -395,8 +395,8 @@
#define DDR0_26_TRAS_MAX_ENCODE(n) ((((unsigned long)(n))&0xFFFF)<<16)
#define DDR0_26_TRAS_MAX_DECODE(n) ((((unsigned long)(n))>>16)&0xFFFF)
#define DDR0_26_TREF_MASK 0x00003FFF
-#define DDR0_26_TREF_ENCODE(n) ((((unsigned long)(n))&0x3FF)<<0)
-#define DDR0_26_TREF_DECODE(n) ((((unsigned long)(n))>>0)&0x3FF)
+#define DDR0_26_TREF_ENCODE(n) ((((unsigned long)(n))&0x3FFF)<<0)
+#define DDR0_26_TREF_DECODE(n) ((((unsigned long)(n))>>0)&0x3FFF)
#define DDR0_27 0x1B
#define DDR0_27_EMRS_DATA_MASK 0x3FFF0000
diff --git a/board/amcc/sequoia/sequoia.c b/board/amcc/sequoia/sequoia.c
index 4e47ab395b..37b4f31b90 100644
--- a/board/amcc/sequoia/sequoia.c
+++ b/board/amcc/sequoia/sequoia.c
@@ -23,9 +23,11 @@
*/
#include <common.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <ppc440.h>
#include <asm/processor.h>
#include <asm/io.h>
-#include <ppc440.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -46,31 +48,31 @@ int board_early_init_f(void)
* Setup the GPIO pins
*-------------------------------------------------------------------*/
/* test-only: take GPIO init from pcs440ep ???? in config file */
- out32(GPIO0_OR, 0x00000000);
- out32(GPIO0_TCR, 0x0000000f);
- out32(GPIO0_OSRL, 0x50015400);
- out32(GPIO0_OSRH, 0x550050aa);
- out32(GPIO0_TSRL, 0x50015400);
- out32(GPIO0_TSRH, 0x55005000);
- out32(GPIO0_ISR1L, 0x50000000);
- out32(GPIO0_ISR1H, 0x00000000);
- out32(GPIO0_ISR2L, 0x00000000);
- out32(GPIO0_ISR2H, 0x00000100);
- out32(GPIO0_ISR3L, 0x00000000);
- out32(GPIO0_ISR3H, 0x00000000);
-
- out32(GPIO1_OR, 0x00000000);
- out32(GPIO1_TCR, 0xc2000000);
- out32(GPIO1_OSRL, 0x5c280000);
- out32(GPIO1_OSRH, 0x00000000);
- out32(GPIO1_TSRL, 0x0c000000);
- out32(GPIO1_TSRH, 0x00000000);
- out32(GPIO1_ISR1L, 0x00005550);
- out32(GPIO1_ISR1H, 0x00000000);
- out32(GPIO1_ISR2L, 0x00050000);
- out32(GPIO1_ISR2H, 0x00000000);
- out32(GPIO1_ISR3L, 0x01400000);
- out32(GPIO1_ISR3H, 0x00000000);
+ out_be32((u32 *) GPIO0_OR, 0x00000000);
+ out_be32((u32 *) GPIO0_TCR, 0x0000000f);
+ out_be32((u32 *) GPIO0_OSRL, 0x50015400);
+ out_be32((u32 *) GPIO0_OSRH, 0x550050aa);
+ out_be32((u32 *) GPIO0_TSRL, 0x50015400);
+ out_be32((u32 *) GPIO0_TSRH, 0x55005000);
+ out_be32((u32 *) GPIO0_ISR1L, 0x50000000);
+ out_be32((u32 *) GPIO0_ISR1H, 0x00000000);
+ out_be32((u32 *) GPIO0_ISR2L, 0x00000000);
+ out_be32((u32 *) GPIO0_ISR2H, 0x00000100);
+ out_be32((u32 *) GPIO0_ISR3L, 0x00000000);
+ out_be32((u32 *) GPIO0_ISR3H, 0x00000000);
+
+ out_be32((u32 *) GPIO1_OR, 0x00000000);
+ out_be32((u32 *) GPIO1_TCR, 0xc2000000);
+ out_be32((u32 *) GPIO1_OSRL, 0x5c280000);
+ out_be32((u32 *) GPIO1_OSRH, 0x00000000);
+ out_be32((u32 *) GPIO1_TSRL, 0x0c000000);
+ out_be32((u32 *) GPIO1_TSRH, 0x00000000);
+ out_be32((u32 *) GPIO1_ISR1L, 0x00005550);
+ out_be32((u32 *) GPIO1_ISR1H, 0x00000000);
+ out_be32((u32 *) GPIO1_ISR2L, 0x00050000);
+ out_be32((u32 *) GPIO1_ISR2H, 0x00000000);
+ out_be32((u32 *) GPIO1_ISR3L, 0x01400000);
+ out_be32((u32 *) GPIO1_ISR3H, 0x00000000);
/*--------------------------------------------------------------------
* Setup the interrupt controller polarities, triggers, etc.
@@ -100,16 +102,16 @@ int board_early_init_f(void)
mtdcr(uic2sr, 0xffffffff); /* clear all */
/* 50MHz tmrclk */
- *(unsigned char *)(CFG_BCSR_BASE | 0x04) = 0x00;
+ out_8((u8 *) CFG_BCSR_BASE + 0x04, 0x00);
/* clear write protects */
- *(unsigned char *)(CFG_BCSR_BASE | 0x07) = 0x00;
+ out_8((u8 *) CFG_BCSR_BASE + 0x07, 0x00);
/* enable Ethernet */
- *(unsigned char *)(CFG_BCSR_BASE | 0x08) = 0x00;
+ out_8((u8 *) CFG_BCSR_BASE + 0x08, 0x00);
/* enable USB device */
- *(unsigned char *)(CFG_BCSR_BASE | 0x09) = 0x20;
+ out_8((u8 *) CFG_BCSR_BASE + 0x09, 0x20);
/* select Ethernet pins */
mfsdr(SDR0_PFC1, sdr0_pfc1);
@@ -583,3 +585,24 @@ int post_hotkeys_pressed(void)
return 0; /* No hotkeys supported */
}
#endif /* CONFIG_POST */
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ u32 val[4];
+ int rc;
+
+ ft_cpu_setup(blob, bd);
+
+ /* Fixup NOR mapping */
+ val[0] = 0; /* chip select number */
+ val[1] = 0; /* always 0 */
+ val[2] = gd->bd->bi_flashstart;
+ val[3] = gd->bd->bi_flashsize;
+ rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
+ val, sizeof(val), 1);
+ if (rc)
+ printf("Unable to update property NOR mapping, err=%s\n",
+ fdt_strerror(rc));
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
generated by cgit (git 2.34.1) at 2024-12-29 15:36:34 +0000