- Simple timing functions based on a time base reference.

- u-boot header file

5 files changed, 258 insertions, 1 deletions

diff --git a/c/src/lib/libbsp/powerpc/ChangeLog b/c/src/lib/libbsp/powerpc/ChangeLog
index bd98525401..2eaa1247b1 100644
--- a/c/src/lib/libbsp/powerpc/ChangeLog
+++ b/c/src/lib/libbsp/powerpc/ChangeLog
@@ -1,3 +1,10 @@
+2008-07-09	Sebastian Huber <sebastian.huber@embedded-brains.de>
+
+	* shared/clock/clock.c: Alternative clock driver.  Uses exception handler
+	directly.  Supports special variants for Book E and e300 cores.  For
+	standard decrementer CPUs the new decrementer value is calculated with
+	reference to a time base so that a time drift is avoided.
+
 2008-07-01	Joel Sherrill <joel.sherrill@oarcorp.com>
 
 	* shared/uboot_getenv.c: New file.
diff --git a/c/src/lib/libbsp/powerpc/gen83xx/network/network.c b/c/src/lib/libbsp/powerpc/gen83xx/network/network.c
index e5e2a0a91c..8e2009054e 100644
--- a/c/src/lib/libbsp/powerpc/gen83xx/network/network.c
+++ b/c/src/lib/libbsp/powerpc/gen83xx/network/network.c
@@ -30,7 +30,7 @@
 #define TSEC_IFMODE_GMII  1
 
 #if defined(MPC8349EAMDS)
-#define TSEC_IFMODE TSEC_IFMODE_GMII
+#define TSEC_IFMODE TSEC_IFMODE_RGMII
 #endif
 
 #if defined(HSC_CM01)
diff --git a/c/src/lib/libbsp/powerpc/shared/include/tictac.h b/c/src/lib/libbsp/powerpc/shared/include/tictac.h
new file mode 100644
index 0000000000..7ca5922557
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/shared/include/tictac.h
@@ -0,0 +1,77 @@
+/**
+ * @file
+ *
+ * @ingroup powerpc_shared
+ *
+ * @brief Header file for tic-tac code.
+ */
+
+/*
+ * Copyright (c) 2008
+ * Embedded Brains GmbH
+ * Obere Lagerstr. 30
+ * D-82178 Puchheim
+ * Germany
+ * rtems@embedded-brains.de
+ *
+ * The license and distribution terms for this file may be found in the file
+ * LICENSE in this distribution or at http://www.rtems.com/license/LICENSE.
+ */
+
+/**
+ * @brief Reset reference ticks for tac().
+ */
+static inline void tic()
+{
+	uint32_t tmp;
+	asm volatile (
+		"mftb 0;"
+		"stw 0, ppc_tic_tac@sdarel(13);"
+		: "=r" (tmp)
+	);
+}
+
+/**
+ * @brief Returns number of ticks since last tic().
+ */
+static inline uint32_t tac()
+{
+	uint32_t ticks;
+	uint32_t tmp;
+	asm volatile (
+		"mftb %0;"
+		"lwz %1, ppc_tic_tac@sdarel(13);"
+		"subf %0, %1, %0;"
+		: "=r" (ticks), "=r" (tmp)
+	);
+	return ticks;
+}
+
+/**
+ * @brief Reset reference ticks for bam().
+ */
+static inline void boom()
+{
+	uint32_t tmp;
+	asm volatile (
+		"mftb 0;"
+		"stw 0, ppc_boom_bam@sdarel(13);"
+		: "=r" (tmp)
+	);
+}
+
+/**
+ * @brief Returns number of ticks since last boom().
+ */
+static inline uint32_t bam()
+{
+	uint32_t ticks;
+	uint32_t tmp;
+	asm volatile (
+		"mftb %0;"
+		"lwz %1, ppc_boom_bam@sdarel(13);"
+		"subf %0, %1, %0;"
+		: "=r" (ticks), "=r" (tmp)
+	);
+	return ticks;
+}
diff --git a/c/src/lib/libbsp/powerpc/shared/include/u-boot.h b/c/src/lib/libbsp/powerpc/shared/include/u-boot.h
new file mode 100644
index 0000000000..786ba030ea
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/shared/include/u-boot.h
@@ -0,0 +1,142 @@
+/*
+ * (C) Copyright 2000 - 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ ********************************************************************
+ * NOTE: This header file defines an interface to U-Boot. Including
+ * this (unmodified) header file in another file is considered normal
+ * use of U-Boot, and does *not* fall under the heading of "derived
+ * work".
+ ********************************************************************
+ */
+
+#ifndef __U_BOOT_H__
+#define __U_BOOT_H__
+
+/*
+ * Board information passed to Linux kernel from U-Boot
+ *
+ * include/asm-ppc/u-boot.h
+ */
+
+#ifndef __ASSEMBLY__
+
+typedef struct bd_info {
+	unsigned long	bi_memstart;	/* start of DRAM memory */
+	unsigned long	bi_memsize;	/* size	 of DRAM memory in bytes */
+	unsigned long	bi_flashstart;	/* start of FLASH memory */
+	unsigned long	bi_flashsize;	/* size	 of FLASH memory */
+	unsigned long	bi_flashoffset; /* reserved area for startup monitor */
+	unsigned long	bi_sramstart;	/* start of SRAM memory */
+	unsigned long	bi_sramsize;	/* size	 of SRAM memory */
+#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) \
+	|| defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
+	unsigned long	bi_immr_base;	/* base of IMMR register */
+#endif
+#if defined(CONFIG_MPC5xxx)
+	unsigned long	bi_mbar_base;	/* base of internal registers */
+#endif
+#if defined(CONFIG_MPC83XX)
+	unsigned long	bi_immrbar;
+#endif
+#if defined(CONFIG_MPC8220)
+	unsigned long	bi_mbar_base;	/* base of internal registers */
+	unsigned long   bi_inpfreq;     /* Input Freq, In MHz */
+	unsigned long   bi_pcifreq;     /* PCI Freq, in MHz */
+	unsigned long   bi_pevfreq;     /* PEV Freq, in MHz */
+	unsigned long   bi_flbfreq;     /* Flexbus Freq, in MHz */
+	unsigned long   bi_vcofreq;     /* VCO Freq, in MHz */
+#endif
+	unsigned long	bi_bootflags;	/* boot / reboot flag (for LynxOS) */
+	unsigned long	bi_ip_addr;	/* IP Address */
+	unsigned char	bi_enetaddr[6];	/* Ethernet adress */
+	unsigned short	bi_ethspeed;	/* Ethernet speed in Mbps */
+	unsigned long	bi_intfreq;	/* Internal Freq, in MHz */
+	unsigned long	bi_busfreq;	/* Bus Freq, in MHz */
+#if defined(CONFIG_CPM2)
+	unsigned long	bi_cpmfreq;	/* CPM_CLK Freq, in MHz */
+	unsigned long	bi_brgfreq;	/* BRG_CLK Freq, in MHz */
+	unsigned long	bi_sccfreq;	/* SCC_CLK Freq, in MHz */
+	unsigned long	bi_vco;		/* VCO Out from PLL, in MHz */
+#endif
+#if defined(CONFIG_MPC512X)
+	unsigned long	bi_ipsfreq;	/* IPS Bus Freq, in MHz */
+#endif /* CONFIG_MPC512X */
+#if defined(CONFIG_MPC5xxx)
+	unsigned long	bi_ipbfreq;	/* IPB Bus Freq, in MHz */
+	unsigned long	bi_pcifreq;	/* PCI Bus Freq, in MHz */
+#endif
+	unsigned long	bi_baudrate;	/* Console Baudrate */
+#if defined(CONFIG_405)   || \
+    defined(CONFIG_405GP) || \
+    defined(CONFIG_405CR) || \
+    defined(CONFIG_405EP) || \
+    defined(CONFIG_405EZ) || \
+    defined(CONFIG_405EX) || \
+    defined(CONFIG_440)
+	unsigned char	bi_s_version[4];	/* Version of this structure */
+	unsigned char	bi_r_version[32];	/* Version of the ROM (AMCC) */
+	unsigned int	bi_procfreq;	/* CPU (Internal) Freq, in Hz */
+	unsigned int	bi_plb_busfreq;	/* PLB Bus speed, in Hz */
+	unsigned int	bi_pci_busfreq;	/* PCI Bus speed, in Hz */
+	unsigned char	bi_pci_enetaddr[6];	/* PCI Ethernet MAC address */
+#endif
+#if defined(CONFIG_HYMOD)
+	hymod_conf_t	bi_hymod_conf;	/* hymod configuration information */
+#endif
+
+#ifdef CONFIG_HAS_ETH1
+	/* second onboard ethernet port */
+	unsigned char   bi_enet1addr[6];
+#endif
+#ifdef CONFIG_HAS_ETH2
+	/* third onboard ethernet port */
+	unsigned char	bi_enet2addr[6];
+#endif
+#ifdef CONFIG_HAS_ETH3
+	unsigned char   bi_enet3addr[6];
+#endif
+
+#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
+    defined(CONFIG_405EZ) || defined(CONFIG_440GX) || \
+    defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT)
+	unsigned int	bi_opbfreq;		/* OPB clock in Hz */
+	int		bi_iic_fast[2];		/* Use fast i2c mode */
+#endif
+#if defined(CONFIG_NX823)
+	unsigned char	bi_sernum[8];
+#endif
+#if defined(CONFIG_4xx)
+#if defined(CONFIG_440GX) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT)
+	int 		bi_phynum[4];           /* Determines phy mapping */
+	int 		bi_phymode[4];          /* Determines phy mode */
+#elif defined(CONFIG_405EP) || defined(CONFIG_440)
+	int 		bi_phynum[2];           /* Determines phy mapping */
+	int 		bi_phymode[2];          /* Determines phy mode */
+#else
+	int 		bi_phynum[1];           /* Determines phy mapping */
+	int 		bi_phymode[1];          /* Determines phy mode */
+#endif
+#endif /* defined(CONFIG_4xx) */
+} bd_t;
+
+#endif /* __ASSEMBLY__ */
+#endif	/* __U_BOOT_H__ */
diff --git a/c/src/lib/libbsp/powerpc/shared/src/tictac.c b/c/src/lib/libbsp/powerpc/shared/src/tictac.c
new file mode 100644
index 0000000000..06272df2b0
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/shared/src/tictac.c
@@ -0,0 +1,31 @@
+/**
+ * @file
+ *
+ * @ingroup powerpc_shared
+ *
+ * @brief Source file for tic-tac code.
+ */
+
+/*
+ * Copyright (c) 2008
+ * Embedded Brains GmbH
+ * Obere Lagerstr. 30
+ * D-82178 Puchheim
+ * Germany
+ * rtems@embedded-brains.de
+ *
+ * The license and distribution terms for this file may be found in the file
+ * LICENSE in this distribution or at http://www.rtems.com/license/LICENSE.
+ */
+
+#include <stdint.h>
+
+/**
+ * @brief Referenc value for tac().
+ */
+uint32_t ppc_tic_tac = 0;
+
+/**
+ * @brief Referenc value for bam().
+ */
+uint32_t ppc_boom_bam = 0;