API for external applications.

This is an API for external (standalone) applications running on top of
U-Boot, and is meant to be more extensible and robust than the existing
jumptable mechanism. It is similar to UNIX syscall approach. See api/README
for more details.

Included is the demo application using this new framework (api_examples).

Please note this is still an experimental feature, and is turned off by
default.

Signed-off-by: Rafal Jaworowski <raj@semihalf.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/api/api_platform-ppc.c b/api/api_platform-ppc.c
new file mode 100644
index 00000000000..ca9f9a5cd19
--- /dev/null
+++ b/api/api_platform-ppc.c
@@ -0,0 +1,79 @@
+/*
+ * (C) Copyright 2007 Semihalf
+ *
+ * Written by: Rafal Jaworowski <raj@semihalf.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ *
+ *
+ * This file contains routines that fetch data from PowerPC-dependent sources
+ * (bd_info etc.)
+ *
+ */
+
+#include <config.h>
+
+#if defined(CONFIG_API)
+
+#include <linux/types.h>
+#include <api_public.h>
+
+#include <asm/u-boot.h>
+#include <asm/global_data.h>
+
+#include "api_private.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Important notice: handling of individual fields MUST be kept in sync with
+ * include/asm-ppc/u-boot.h and include/asm-ppc/global_data.h, so any changes
+ * need to reflect their current state and layout of structures involved!
+ */
+int platform_sys_info(struct sys_info *si)
+{
+	si->clk_bus = gd->bus_clk;
+	si->clk_cpu = gd->cpu_clk;
+
+#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) || \
+    defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
+#define bi_bar	bi_immr_base
+#elif defined(CONFIG_MPC5xxx)
+#define bi_bar	bi_mbar_base
+#elif defined(CONFIG_MPC83XX)
+#define bi_bar	bi_immrbar
+#elif defined(CONFIG_MPC8220)
+#define bi_bar	bi_mbar_base
+#endif
+
+#if defined(bi_bar)
+	si->bar = gd->bd->bi_bar;
+#undef bi_bar
+#else
+	si->bar = NULL;
+#endif
+
+	platform_set_mr(si, gd->bd->bi_memstart, gd->bd->bi_memsize, MR_ATTR_DRAM);
+	platform_set_mr(si, gd->bd->bi_flashstart, gd->bd->bi_flashsize, MR_ATTR_FLASH);
+	platform_set_mr(si, gd->bd->bi_sramstart, gd->bd->bi_sramsize, MR_ATTR_SRAM);
+
+	return 1;
+}
+
+#endif /* CONFIG_API */