X-Git-Url: https://repo.jachan.dev/J-u-boot.git/blobdiff_plain/ecc198c9b9522aa766235b7780f8ef7e01d0d0e2..14f73ca679f6fdb44cff0b7304d419db41a0ab69:/lib_ppc/board.c

diff --git a/lib_ppc/board.c b/lib_ppc/board.c
index 07197450666..5e6e1e6a31b 100644
--- a/lib_ppc/board.c
+++ b/lib_ppc/board.c
@@ -38,6 +38,9 @@
 #if defined(CONFIG_CMD_IDE)
 #include <ide.h>
 #endif
+#if defined(CONFIG_CMD_SATA)
+#include <sata.h>
+#endif
 #if defined(CONFIG_CMD_SCSI)
 #include <scsi.h>
 #endif
@@ -87,6 +90,9 @@ void doc_init (void);
     defined(CONFIG_SOFT_I2C)
 #include <i2c.h>
 #endif
+#if defined(CONFIG_HARD_SPI)
+#include <spi.h>
+#endif
 #if defined(CONFIG_CMD_NAND)
 void nand_init (void);
 #endif
@@ -247,6 +253,16 @@ static int init_func_i2c (void)
 }
 #endif
 
+#if defined(CONFIG_HARD_SPI)
+static int init_func_spi (void)
+{
+	puts ("SPI:   ");
+	spi_init ();
+	puts ("ready\n");
+	return (0);
+}
+#endif
+
 /***********************************************************************/
 
 #if defined(CONFIG_WATCHDOG)
@@ -329,6 +345,9 @@ init_fnc_t *init_sequence[] = {
 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 	init_func_i2c,
 #endif
+#if defined(CONFIG_HARD_SPI)
+	init_func_spi,
+#endif
 #if defined(CONFIG_DTT)		/* Digital Thermometers and Thermostats */
 	dtt_init,
 #endif
@@ -345,6 +364,20 @@ init_fnc_t *init_sequence[] = {
 	NULL,			/* Terminate this list */
 };
 
+#ifndef CONFIG_MAX_MEM_MAPPED
+#define CONFIG_MAX_MEM_MAPPED (256 << 20)
+#endif
+ulong get_effective_memsize(void)
+{
+#ifndef	CONFIG_VERY_BIG_RAM
+	return gd->ram_size;
+#else
+	/* limit stack to what we can reasonable map */
+	return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
+		 CONFIG_MAX_MEM_MAPPED : gd->ram_size);
+#endif
+}
+
 /************************************************************************
  *
  * This is the first part of the initialization sequence that is
@@ -395,6 +428,7 @@ void board_init_f (ulong bootflag)
 	 * relocate the code and continue running from DRAM.
 	 *
 	 * Reserve memory at end of RAM for (top down in that order):
+	 *  - area that won't get touched by U-Boot and Linux (optional)
 	 *  - kernel log buffer
 	 *  - protected RAM
 	 *  - LCD framebuffer
@@ -403,19 +437,38 @@ void board_init_f (ulong bootflag)
 	 */
 	len = (ulong)&_end - CFG_MONITOR_BASE;
 
+	/*
+	 * Subtract specified amount of memory to hide so that it won't
+	 * get "touched" at all by U-Boot. By fixing up gd->ram_size
+	 * the Linux kernel should now get passed the now "corrected"
+	 * memory size and won't touch it either. This should work
+	 * for arch/ppc and arch/powerpc. Only Linux board ports in
+	 * arch/powerpc with bootwrapper support, that recalculate the
+	 * memory size from the SDRAM controller setup will have to
+	 * get fixed.
+	 */
+	gd->ram_size -= CFG_MEM_TOP_HIDE;
+
+#ifndef CONFIG_MAX_MEM_MAPPED
+#define CONFIG_MAX_MEM_MAPPED (256 << 20)
+#endif
+
 #ifndef	CONFIG_VERY_BIG_RAM
-	addr = CFG_SDRAM_BASE + gd->ram_size;
+	addr = CFG_SDRAM_BASE + get_effective_memsize();
 #else
 	/* only allow stack below 256M */
 	addr = CFG_SDRAM_BASE +
-	       (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
+		(gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
+		CONFIG_MAX_MEM_MAPPED : get_effective_memsize();
 #endif
 
 #ifdef CONFIG_LOGBUFFER
+#ifndef CONFIG_ALT_LB_ADDR
 	/* reserve kernel log buffer */
 	addr -= (LOGBUFF_RESERVE);
 	debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
 #endif
+#endif
 
 #ifdef CONFIG_PRAM
 	/*
@@ -555,6 +608,9 @@ void board_init_f (ulong bootflag)
 	bd->bi_sccfreq = gd->scc_clk;
 	bd->bi_vco     = gd->vco_out;
 #endif /* CONFIG_CPM2 */
+#if defined(CONFIG_MPC512X)
+	bd->bi_ipsfreq = gd->ips_clk;
+#endif /* CONFIG_MPC512X */
 #if defined(CONFIG_MPC5xxx)
 	bd->bi_ipbfreq = gd->ipb_clk;
 	bd->bi_pcifreq = gd->pci_clk;
@@ -832,6 +888,11 @@ void board_init_r (gd_t *id, ulong dest_addr)
 #if defined(CONFIG_SC3)
 	sc3_read_eeprom();
 #endif
+
+#ifdef CFG_ID_EEPROM
+	mac_read_from_eeprom();
+#endif
+
 	s = getenv ("ethaddr");
 #if defined (CONFIG_MBX) || \
     defined (CONFIG_RPXCLASSIC) || \
@@ -899,10 +960,6 @@ void board_init_r (gd_t *id, ulong dest_addr)
 	}
 #endif
 
-#ifdef CFG_ID_EEPROM
-	mac_read_from_eeprom();
-#endif
-
 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
     defined(CONFIG_TQM8272) || \
     defined(CONFIG_CCM) || defined(CONFIG_KUP4K) || \
@@ -1063,6 +1120,11 @@ void board_init_r (gd_t *id, ulong dest_addr)
 #endif
 #endif
 
+#if defined(CONFIG_CMD_SATA)
+	puts ("SATA:  ");
+	sata_initialize ();
+#endif
+
 #ifdef CONFIG_LAST_STAGE_INIT
 	WATCHDOG_RESET ();
 	/*
@@ -1098,8 +1160,10 @@ void board_init_r (gd_t *id, ulong dest_addr)
 		pram=0;
 #endif
 #ifdef CONFIG_LOGBUFFER
+#ifndef CONFIG_ALT_LB_ADDR
 		/* Also take the logbuffer into account (pram is in kB) */
 		pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
+#endif
 #endif
 		sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
 		setenv ("mem", (char *)memsz);