ppc4xx: Add 405GPr based MCU25 board specific files
Signed-off-by: Niklaus Giger <niklaus.giger@netstal.com>
diff --git a/board/netstal/mcu25/mcu25.c b/board/netstal/mcu25/mcu25.c
new file mode 100644
index 0000000..dd7bd83
--- /dev/null
+++ b/board/netstal/mcu25/mcu25.c
@@ -0,0 +1,218 @@
+/*
+ *(C) Copyright 2005-2008 Netstal Maschinen AG
+ * Niklaus Giger (Niklaus.Giger@netstal.com)
+ *
+ * This source code is free software; you can redistribute it
+ * and/or modify it in source code form 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
+ */
+
+#include <common.h>
+#include <ppc4xx.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm-ppc/u-boot.h>
+#include "../common/nm.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define MCU25_SLOT_ADDRESS (0x7A000000 + 0x0A)
+#define MCU25_DIGITAL_IO_REGISTER (0x7A000000 + 0xc0)
+
+#define MCU25_LED_REGISTER_ADDRESS (0x7C000000 + 0x10)
+#define MCU25_VERSIONS_REGISTER (0x7C000000 + 0x0C)
+#define MCU25_IO_CONFIGURATION (0x7C000000 + 0x0e)
+#define MCU_SW_INSTALL_REQUESTED 0x08
+
+#define SDRAM_LEN (32 << 20) /* 32 MB - RAM */
+
+/*
+ * This function is run very early, out of flash, and before devices are
+ * initialized. It is called by lib_ppc/board.c:board_init_f by virtue
+ * of being in the init_sequence array.
+ *
+ * The SDRAM has been initialized already -- start.S:start called
+ * init.S:init_sdram early on -- but it is not yet being used for
+ * anything, not even stack. So be careful.
+ */
+
+/* Attention: If you want 1 microsecs times from the external oscillator
+ * 0x00004051 is okay for u-boot/linux, but different from old vxworks values
+ * 0x00804051 causes problems with u-boot and linux!
+ */
+#define CPC0_CR0_VALUE 0x0007F03C
+#define CPC0_CR1_VALUE 0x00004051
+
+int board_early_init_f (void)
+{
+ /* Documented in A-1171
+ *
+ * Interrupt controller setup for the MCU25 board.
+ * Note: IRQ 0-15 405GP internally generated; high; level sensitive
+ * IRQ 16 405GP internally generated; low; level sensitive
+ * IRQ 17-24 RESERVED/UNUSED
+ * IRQ 31 (EXT IRQ 6) (unused)
+ */
+ mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
+ mtdcr(uicer, 0x00000000); /* disable all ints */
+ mtdcr(uiccr, 0x00000000); /* set all to be non-critical */
+ mtdcr(uicpr, 0xFFFFE000); /* set int polarities */
+ mtdcr(uictr, 0x00000000); /* set int trigger levels */
+ mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
+
+ mtdcr(cntrl1, CPC0_CR1_VALUE);
+ mtdcr(ecr, 0x60606000);
+ mtdcr(CPC0_EIRR, 0x7C000000);
+ out32(GPIO0_OR, CFG_GPIO0_OR );
+ out32(GPIO0_TCR, CFG_GPIO0_TCR);
+ out32(GPIO0_ODR, CFG_GPIO0_ODR);
+ mtspr(ccr0, 0x00700000);
+
+ return 0;
+}
+
+#ifdef CONFIG_BOARD_PRE_INIT
+int board_pre_init (void)
+{
+ return board_early_init_f ();
+}
+#endif
+
+int sys_install_requested(void)
+{
+ u16 ioValue = in_be16((u16 *)MCU25_DIGITAL_IO_REGISTER);
+ return (ioValue & MCU_SW_INSTALL_REQUESTED) != 0;
+}
+
+int checkboard (void)
+{
+ u16 boardVersReg = in_be16((u16 *)MCU25_VERSIONS_REGISTER);
+ u16 hwConfig = in_be16((u16 *)MCU25_IO_CONFIGURATION);
+ u16 generation = boardVersReg & 0x0f;
+ u16 index = boardVersReg & 0xf0;
+
+ /* Cannot be done in board_early_init */
+ mtdcr(cntrl0, CPC0_CR0_VALUE);
+
+ /* Force /RTS to active. The board it not wired quite
+ * correctly to use cts/rtc flow control, so just force the
+ * /RST active and forget about it.
+ */
+ writeb (readb (0xef600404) | 0x03, 0xef600404);
+ nm_show_print(generation, index, hwConfig);
+ return 0;
+}
+
+u32 hcu_led_get(void)
+{
+ return in_be16((u16 *)MCU25_LED_REGISTER_ADDRESS) & 0x3ff;
+}
+
+/*
+ * hcu_led_set value to be placed into the LEDs (max 6 bit)
+ */
+void hcu_led_set(u32 value)
+{
+ out_be16((u16 *)MCU25_LED_REGISTER_ADDRESS, value);
+}
+
+/*
+ * sdram_init - Dummy implementation for start.S, spd_sdram or initdram
+ * used for HCUx
+ */
+void sdram_init(void)
+{
+ return;
+}
+
+/*
+ * hcu_get_slot
+ */
+u32 hcu_get_slot(void)
+{
+ u16 slot = in_be16((u16 *)MCU25_SLOT_ADDRESS);
+ return slot & 0x7f;
+}
+
+/*
+ * get_serial_number
+ */
+u32 get_serial_number(void)
+{
+ u32 serial = in_be32((u32 *)CFG_FLASH_BASE);
+
+ if (serial == 0xffffffff)
+ return 0;
+
+ return serial;
+}
+
+
+/*
+ * misc_init_r.
+ */
+
+int misc_init_r(void)
+{
+ common_misc_init_r();
+ set_params_for_sw_install( sys_install_requested(), "mcu25" );
+ return 0;
+}
+
+long int initdram(int board_type)
+{
+ unsigned int dram_size = 64*1024*1024;
+ init_ppc405_sdram(dram_size);
+
+#ifdef DEBUG
+ show_sdram_registers();
+#endif
+
+ return dram_size;
+}
+
+#if defined(CONFIG_POST)
+/*
+ * Returns 1 if keys pressed to start the power-on long-running tests
+ * Called from board_init_f().
+ */
+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)
+{
+ ft_cpu_setup(blob, bd);
+
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
+
+/*
+ * Hardcoded flash setup:
+ * Flash 0 is a non-CFI AMD AM29F040 flash, 8 bit flash / 8 bit bus.
+ */
+ulong board_flash_get_legacy (ulong base, int banknum, flash_info_t * info)
+{
+ if (banknum == 0) { /* non-CFI boot flash */
+ info->portwidth = 1;
+ info->chipwidth = 1;
+ info->interface = FLASH_CFI_X8;
+ return 1;
+ } else
+ return 0;
+}
+