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-rw-r--r--board/modnet50/lowlevel_init.S204
1 files changed, 0 insertions, 204 deletions
diff --git a/board/modnet50/lowlevel_init.S b/board/modnet50/lowlevel_init.S
deleted file mode 100644
index 52ef2a8..0000000
--- a/board/modnet50/lowlevel_init.S
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * Memory Setup stuff - taken from Linux
- *
- * Copyright (c) 2002 Stephan Linz <linz@mazet.de>, <linz@li-pro.net>
- * (c) 2004 IMMS gGmbH <www.imms.de>, Thomas Elste <info@elste.org>
- *
- * 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
- */
-
-
-#include <config.h>
-#include <version.h>
-#include <asm/arch/netarm_registers.h>
-
-
-/* some parameters for the board */
-#define FLASH_90ns_WAIT_STATES ((NETARM_PLL_COUNT_VAL + 2) / 3)
-#define FLASH_70ns_WAIT_STATES 4
-
-#define NETARM_MMAP_CS0_BASE (PHYS_FLASH_1)
-#if 1
-#define NETARM_MMAP_CS0_MASK (~(PHYS_FLASH_1_SIZE - 1))
-#else
-#define NETARM_MMAP_CS0_MASK (~(1000000 - 1))
-#endif
-#define NETARM_MMAP_CS1_BASE (PHYS_SDRAM_1)
-#define NETARM_MMAP_CS1_MASK (~(PHYS_SDRAM_1_SIZE - 1))
-#define NETARM_MMAP_CS2_BASE (PHYS_SDRAM_2)
-#define NETARM_MMAP_CS2_MASK (~(PHYS_SDRAM_2_SIZE - 1))
-#if defined(CONFIG_NETARM_EEPROM) && defined(PHYS_NVRAM_1) && defined(PHYS_NVRAM_SIZE)
-#define NETARM_MMAP_CS3_BASE (PHYS_NVRAM_1)
-#define NETARM_MMAP_CS3_MASK (~(PHYS_NVRAM_SIZE - 1))
-#endif
-#define NETARM_MMAP_CS4_BASE (PHYS_EXT_1)
-#define NETARM_MMAP_CS4_MASK (~(PHYS_EXT_SIZE - 1))
-
-/* setting up the memory */
-.globl lowlevel_init
-lowlevel_init:
-
-#if defined(CONFIG_MODNET50)
- ldr pc, =(_jump_to_high + NETARM_MMAP_CS0_BASE - CONFIG_SYS_TEXT_BASE)
-
-_jump_to_high:
- /*
- * MEM Config Reg
- * ---------------------------------------------------
- */
- ldr r0, =NETARM_MEM_MODULE_BASE
- ldr r1, =( NETARM_MEM_REFR_PERIOD_USEC(16) | \
- NETARM_MEM_CFG_REFRESH_EN | \
- NETARM_MEM_CFG_REFR_CYCLE_5CLKS )
- str r1, [r0, #+NETARM_MEM_MODULE_CONFIG]
-
-
-memsetup_cs0:
- /*
- * Base Addr / Option Reg 0 (Flash)
- * ---------------------------------------------------
- */
- ldr r1, =( NETARM_MEM_BAR_BASE(NETARM_MMAP_CS0_BASE) | \
- NETARM_MEM_BAR_DRAM_FP | \
- NETARM_MEM_BAR_DRAM_MUX_INT | \
- NETARM_MEM_BAR_DRAM_MUX_BAL | \
- NETARM_MEM_BAR_VALID )
- str r1, [r0, #+NETARM_MEM_CS0_BASE_ADDR]
-
- /* trust that the bus size for flash was strapped correctly */
- /* this saves the bus width in r2 and then ORs it back in */
- /* it's pretty safe assumption, otherwise it wouldn't boot */
- ldr r2, [r0, #+NETARM_MEM_CS0_OPTIONS]
- and r2, r2, #NETARM_MEM_OPT_BUS_SIZE_MASK
-
-/* just a test: assume 32 bit flash mem */
-/* mov r2, #NETARM_MEM_OPT_32BIT */
-
- ldr r1, =( NETARM_MEM_OPT_BASE_USE(NETARM_MMAP_CS0_MASK) | \
- NETARM_MEM_OPT_WAIT_STATES(FLASH_70ns_WAIT_STATES) | \
- NETARM_MEM_OPT_BCYC_4 | \
- NETARM_MEM_OPT_BSIZE_16 | \
- NETARM_MEM_OPT_16BIT | \
- NETARM_MEM_OPT_READ_ASYNC | \
- NETARM_MEM_OPT_WRITE_ASYNC )
-
- orr r1, r1, r2
- str r1, [r0, #+NETARM_MEM_CS0_OPTIONS]
-
-
-memsetup_cs1:
- /*
- * Base Addr / Option Reg 1 (DRAM #1)
- * ---------------------------------------------------
- */
-#ifdef CONFIG_NETARM_NET40_REV2
- /* we have to config SDRAM in burst mode */
- ldr r1, =( NETARM_MEM_OPT_BASE_USE(NETARM_MMAP_CS1_MASK) | \
- NETARM_MEM_OPT_BCYC_2 | \
- NETARM_MEM_OPT_BSIZE_16 | \
- NETARM_MEM_OPT_WAIT_STATES(0) | \
- NETARM_MEM_OPT_32BIT | \
- NETARM_MEM_OPT_READ_ASYNC | \
- NETARM_MEM_OPT_WRITE_ASYNC )
- str r1, [r0, #+NETARM_MEM_CS1_OPTIONS]
-
- ldr r1, =( NETARM_MEM_BAR_BASE(NETARM_MMAP_CS1_BASE) | \
- NETARM_MEM_BAR_DRAM_SYNC | \
- NETARM_MEM_BAR_DRAM_MUX_INT | \
- NETARM_MEM_BAR_DRAM_MUX_UNBAL | \
- NETARM_MEM_BAR_DRAM_SEL | \
- NETARM_MEM_BAR_BURST_EN | \
- NETARM_MEM_BAR_VALID )
- str r1, [r0, #+NETARM_MEM_CS1_BASE_ADDR]
-#else
- /* we have to config FPDRAM in burst mode with smaller burst access size */
- ldr r1, =( NETARM_MEM_OPT_BASE_USE(NETARM_MMAP_CS1_MASK) | \
- NETARM_MEM_OPT_BCYC_2 | \
- NETARM_MEM_OPT_BSIZE_16 | \
- NETARM_MEM_OPT_WAIT_STATES(0) | \
- NETARM_MEM_OPT_32BIT | \
- NETARM_MEM_OPT_READ_ASYNC | \
- NETARM_MEM_OPT_WRITE_ASYNC )
- str r1, [r0, #+NETARM_MEM_CS1_OPTIONS]
-
- ldr r1, =( NETARM_MEM_BAR_BASE(NETARM_MMAP_CS1_BASE) | \
- NETARM_MEM_BAR_DRAM_SYNC | \
- NETARM_MEM_BAR_DRAM_MUX_INT | \
- NETARM_MEM_BAR_DRAM_MUX_UNBAL | \
- NETARM_MEM_BAR_DRAM_SEL | \
- NETARM_MEM_BAR_BURST_EN | \
- NETARM_MEM_BAR_VALID )
- str r1, [r0, #+NETARM_MEM_CS1_BASE_ADDR]
-
-#endif /* CONFIG_NETARM_NET40_REV2 */
-
-
-memsetup_cs3:
- /*
- * Base Addr / Option Reg 3 (EEPROM, NVRAM)
- * ---------------------------------------------------
- */
-#if defined(CONFIG_NETARM_EEPROM) && defined(PHYS_NVRAM_1) && defined(PHYS_NVRAM_SIZE)
- ldr r1, =( NETARM_MEM_OPT_BASE_USE(NETARM_MMAP_CS3_MASK) | \
- NETARM_MEM_OPT_BCYC_3 | \
- NETARM_MEM_OPT_BSIZE_2 | \
- NETARM_MEM_OPT_WAIT_STATES(10) | \
- NETARM_MEM_OPT_8BIT | \
- NETARM_MEM_OPT_READ_ASYNC | \
- NETARM_MEM_OPT_WRITE_ASYNC )
- str r1, [r0, #+NETARM_MEM_CS3_OPTIONS]
-
- ldr r1, =( NETARM_MEM_BAR_BASE(NETARM_MMAP_CS3_BASE) | \
- NETARM_MEM_BAR_DRAM_FP | \
- NETARM_MEM_BAR_DRAM_MUX_INT | \
- NETARM_MEM_BAR_DRAM_MUX_BAL | \
- NETARM_MEM_BAR_VALID )
- str r1, [r0, #+NETARM_MEM_CS3_BASE_ADDR]
-#else
- /* we don't need EEPROM --> no config */
- ldr r1, =( 0 )
- str r1, [r0, #+NETARM_MEM_CS3_OPTIONS]
-
- ldr r1, =( 0 )
- str r1, [r0, #+NETARM_MEM_CS3_BASE_ADDR]
-#endif
-
-
-#else
-/*
-#error "missing CONFIG_MODNET50 (see your config.h)"
-*/
-#endif /* CONFIG_MODNET50 */
-
-
-lowlevel_init_end:
- /*
- * manipulate address in lr and ip to match new
- * address space
- */
- ldr r3, =(NETARM_MMAP_CS0_BASE)
- mov r0, lr
- add r0, r3, r0
- mov lr, r0
- mov r0, ip
- add r0, r3, r0
- mov ip, r0
-
- /* everything is fine now */
- mov pc, lr