memory_mb411.s

采用ST20 CPU的机顶盒的烧写程序

/*
 * File     : memory_mb411stb7100.S
 * Synopsys : Sample memory configuration for mb411 (STb7100)
 *
 * Copyright 2005, 2006 STMicroelectronics Limited.  All right reserved.
 *
 * Provides __memory_setup_table which describes how to
 * program up the LMI and EMI.
 *
 * This table was manually derrived from the GDB
 * configure scripts.
 */
#define _SH4REG_ASM_
#include <boardreg.h>

/*
 * Default to 27MHz external clock source.
 */
#ifndef MB411STB7100EXTCLK
#define MB411STB7100EXTCLK 27
#endif

	.section .text
	.org 0x0
	.global __memory_setup_table
	.global __memory_setup_table_end
	.global _led_on
	.global _led_off

/*
 * Routines to switch an LED on and off on this platform.
 */
_led_off:
	bra	1f
	  mov	#1, r0

_led_on:
	mov	#0, r0

1:	mov.l	led_addr, r1
	rts
	  mov.b	r0, @r1

	.balign 4
led_addr:
	.long 0xa2100010

/*
 * The poke table is a series of long words, in the format
 *
 *       opcode, address, operand, ...
 *
 * An opcode of 0 marks the table end
 */

#define POKE_UPDATE_LONG(A1, A2, AND, SHIFT, OR)	.long 8, A1, A2, AND, SHIFT, OR
#define WHILE_NE(A, AND, VAL)				.long 7, A, AND, VAL
#define UPDATE_LONG(A, AND, OR)				.long 6, A, AND, OR
#define OR_LONG(A, V)					.long 5, A, V
#define POKE_LONG(A, V)					.long 4, A, V
#define POKE_SHORT(A, V)				.long 2, A, V
#define POKE_CHAR(A, V)					.long 1, A, V
#define END_MARKER					.long 0, 0, 0

.balign 4

__memory_setup_table:

#ifdef PREPOKEINCLUDE
#include PREPOKEINCLUDE
#endif

	/*
	 * CLOCKGENA setup PLL0
	 */
	POKE_LONG(STB7100_CLOCKGENA_LOCK, 0xc0de)
	OR_LONG(STB7100_CLOCKGENA_PLL0_CFG, 0x00100000)
	UPDATE_LONG(STB7100_CLOCKGENA_PLL0_CFG, 0xfff7ffff, 0)
#if MB411STB7100EXTCLK == 30
	UPDATE_LONG(STB7100_CLOCKGENA_PLL0_CFG, 0xfff80000, 0x14 | (0xb1 << 8) | (0x0 << 16))
#elif MB411STB7100EXTCLK == 27
	UPDATE_LONG(STB7100_CLOCKGENA_PLL0_CFG, 0xfff80000, 0x06 | (0x3b << 8) | (0x0 << 16))
#else
#error Unsupported external clock frequency
#endif
	OR_LONG(STB7100_CLOCKGENA_PLL0_CFG, 0x00080000)
	WHILE_NE(STB7100_CLOCKGENA_PLL0_STATUS, 0x00000001, 0x00000001)
	UPDATE_LONG(STB7100_CLOCKGENA_PLL0_CFG, 0xffefffff, 0)
	POKE_LONG(STB7100_CLOCKGENA_LOCK, 0x0)

	/*
	 * CLOCKGENA setup PLL1
	 */
	POKE_LONG(STB7100_CLOCKGENA_LOCK, 0xc0de)
	POKE_LONG(STB7100_CLOCKGENA_PLL1_BYPASS, 0x00000002)
	UPDATE_LONG(STB7100_CLOCKGENA_PLL1_CFG, 0xfff7ffff, 0)
#if MB411STB7100EXTCLK == 30
	UPDATE_LONG(STB7100_CLOCKGENA_PLL1_CFG, 0xfff80000, 0x1e | (0xc8 << 8) | (0x0 << 16))
#elif MB411STB7100EXTCLK == 27
	UPDATE_LONG(STB7100_CLOCKGENA_PLL1_CFG, 0xfff80000, 0x1b | (0xc8 << 8) | (0x0 << 16))
#else
#error Unsupported external clock frequency
#endif
	OR_LONG(STB7100_CLOCKGENA_PLL1_CFG, 0x00080000)
	WHILE_NE(STB7100_CLOCKGENA_PLL1_STATUS, 0x00000001, 0x00000001)
	POKE_LONG(STB7100_CLOCKGENA_PLL1_BYPASS, 0x00000000)
	POKE_LONG(STB7100_CLOCKGENA_LOCK, 0x0)

	/*
	 * SYSCONF setup
	 */
	POKE_LONG(STB7100_SYSCONF_SYS_CFG11, 0x0d7f80c0)
	WHILE_NE(STB7100_SYSCONF_SYS_STA12, (1 << 9) | (1 << 19), (1 << 9) | (1 << 19))
	WHILE_NE(STB7100_SYSCONF_SYS_STA13, (1 << 9) | (1 << 19), (1 << 9) | (1 << 19))
	POKE_LONG(STB7100_SYSCONF_SYS_CFG12, 0x4000000f | (0xf << 12) | (0xf << 23))
	POKE_LONG(STB7100_SYSCONF_SYS_CFG13, 0x4000000f | (0xf << 12) | (0xf << 23))
	POKE_LONG(STB7100_STBUS_NODE04_N02_PRIORITY, 0x1)

	/*
	 * LMI SYS setup
	 */
	POKE_LONG(ST40_LMI_MIM_0(SYS), 0x861a025f)
	POKE_LONG(ST40_LMI_MIM_1(SYS), 0x01010022)
	POKE_LONG(ST40_LMI_STR_0(SYS), 0x35b06455)
	POKE_LONG(ST40_LMI_SDRA0_0(SYS), 0x08001900)
	POKE_LONG(ST40_LMI_SDRA1_0(SYS), 0x08001900)
	POKE_LONG(ST40_LMI_SCR_0(SYS), 0x00000001)
	POKE_LONG(ST40_LMI_SCR_0(SYS), 0x00000003)
	POKE_LONG(ST40_LMI_SCR_0(SYS), 0x00000001)
	POKE_LONG(ST40_LMI_SCR_0(SYS), 0x00000002)
	POKE_LONG(ST40_LMI_SDMR0(SYS), 0x00000402)
	POKE_LONG(ST40_LMI_SDMR0(SYS), 0x00000133)
	POKE_LONG(ST40_LMI_SCR_0(SYS), 0x00000002)
	POKE_LONG(ST40_LMI_SCR_0(SYS), 0x00000004)
	POKE_LONG(ST40_LMI_SCR_0(SYS), 0x00000004)
	POKE_LONG(ST40_LMI_SCR_0(SYS), 0x00000004)
	POKE_LONG(ST40_LMI_SDMR0(SYS), 0x00000033)
	POKE_LONG(ST40_LMI_SCR_0(SYS), 0x00000000)

	/*
	 * LMI VID setup
	 */
	POKE_LONG(ST40_LMI_MIM_0(VID), 0x861a025f)
	POKE_LONG(ST40_LMI_MIM_1(VID), 0x01010022)
	POKE_LONG(ST40_LMI_STR_0(VID), 0x35b06455)
	POKE_LONG(ST40_LMI_SDRA0_0(VID), 0x14001900)
	POKE_LONG(ST40_LMI_SDRA1_0(VID), 0x14001900)
	POKE_LONG(ST40_LMI_SCR_0(VID), 0x00000001)
	POKE_LONG(ST40_LMI_SCR_0(VID), 0x00000003)
	POKE_LONG(ST40_LMI_SCR_0(VID), 0x00000001)
	POKE_LONG(ST40_LMI_SCR_0(VID), 0x00000002)
	POKE_LONG(ST40_LMI_SDMR0(VID), 0x00000402)
	POKE_LONG(ST40_LMI_SDMR0(VID), 0x00000133)
	POKE_LONG(ST40_LMI_SCR_0(VID), 0x00000002)
	POKE_LONG(ST40_LMI_SCR_0(VID), 0x00000004)
	POKE_LONG(ST40_LMI_SCR_0(VID), 0x00000004)
	POKE_LONG(ST40_LMI_SCR_0(VID), 0x00000004)
	POKE_LONG(ST40_LMI_SDMR0(VID), 0x00000033)
	POKE_LONG(ST40_LMI_SCR_0(VID), 0x00000000)

	/*
	 * EMI setup
	 */
	POKE_LONG(ST40_EMI_BANK_ENABLE, 0x00000005)
	POKE_LONG(ST40_EMI_BANK0_BASEADDRESS, 0x00000000)
	POKE_LONG(ST40_EMI_BANK1_BASEADDRESS, 0x00000004)
	POKE_LONG(ST40_EMI_BANK2_BASEADDRESS, 0x00000008)
	POKE_LONG(ST40_EMI_BANK3_BASEADDRESS, 0x0000000a)
	POKE_LONG(ST40_EMI_BANK4_BASEADDRESS, 0x0000000c)
	POKE_LONG(ST40_EMI_BANK0_EMICONFIGDATA0, 0x001016d1)
	POKE_LONG(ST40_EMI_BANK0_EMICONFIGDATA1, 0x9d200000)
	POKE_LONG(ST40_EMI_BANK0_EMICONFIGDATA2, 0x9d220000)
	POKE_LONG(ST40_EMI_BANK0_EMICONFIGDATA3, 0x00000000)
	POKE_LONG(ST40_EMI_BANK2_EMICONFIGDATA0, 0x002046f9)
	POKE_LONG(ST40_EMI_BANK2_EMICONFIGDATA1, 0xa5a00000)
	POKE_LONG(ST40_EMI_BANK2_EMICONFIGDATA2, 0xa5a20000)
	POKE_LONG(ST40_EMI_BANK2_EMICONFIGDATA3, 0x00000000)
	POKE_LONG(ST40_EMI_BANK3_EMICONFIGDATA0, 0x00200791)
	POKE_LONG(ST40_EMI_BANK3_EMICONFIGDATA1, 0x0c006700)
	POKE_LONG(ST40_EMI_BANK3_EMICONFIGDATA2, 0x0c006700)
	POKE_LONG(ST40_EMI_BANK3_EMICONFIGDATA3, 0x00000000)
	POKE_LONG(ST40_EMI_BANK4_EMICONFIGDATA0, 0x042086f1)
	POKE_LONG(ST40_EMI_BANK4_EMICONFIGDATA1, 0x88112111)
	POKE_LONG(ST40_EMI_BANK4_EMICONFIGDATA2, 0x88112211)
	POKE_LONG(ST40_EMI_BANK4_EMICONFIGDATA3, 0x00000000)
	POKE_LONG(ST40_EMI_GENCFG, 0x00000050)

#ifdef POSTPOKEINCLUDE
#include POSTPOKEINCLUDE
#endif

	END_MARKER

__memory_setup_table_end:

	.end