board/netstar/setup.S - u-boot - Git at Google

 /*
  * Board specific setup info
  *
  * (C) Copyright 2004 Ales Jindra <jindra@2n.cz>
  * (C) Copyright 2005 Ladislav Michl <michl@2n.cz>
  *
  * 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>

 _TEXT_BASE:
 	.word	TEXT_BASE	/* SDRAM load addr from config.mk */

 OMAP5910_LPG1_BASE:		.word 0xfffbd000
 OMAP5910_TIPB_SWITCHES_BASE:	.word 0xfffbc800
 OMAP5910_MPU_TC_BASE:		.word 0xfffecc00
 OMAP5910_MPU_CLKM_BASE:		.word 0xfffece00
 OMAP5910_ULPD_PWR_MNG_BASE:	.word 0xfffe0800
 OMAP5910_DPLL1_BASE:		.word 0xfffecf00
 OMAP5910_GPIO_BASE:		.word 0xfffce000
 OMAP5910_MPU_WD_TIMER_BASE:	.word 0xfffec800
 OMAP5910_MPUI_BASE:		.word 0xfffec900

 _OMAP5910_ARM_CKCTL:		.word OMAP5910_ARM_CKCTL
 _OMAP5910_ARM_EN_CLK:		.word OMAP5910_ARM_EN_CLK

 OMAP5910_MPUI_CTRL:		.word 0x0000ff1b

 VAL_EMIFS_CS0_CONFIG:		.word 0x00009090
 VAL_EMIFS_CS1_CONFIG:		.word 0x00003031
 VAL_EMIFS_CS2_CONFIG:		.word 0x0000a0a1
 VAL_EMIFS_CS3_CONFIG:		.word 0x0000c0c0
 VAL_EMIFS_DYN_WAIT:		.word 0x00000000
 /* autorefresh counter 0x246 ((64000000/13.4)-400)/8192) */
 				/*     SLRF       SD_RET     ARE        SDRAM_TYPE   ARCV           SDRAM_FREQUENCY PWD     CLK */

 #if (PHYS_SDRAM_1_SIZE == SZ_32M)
 VAL_EMIFF_SDRAM_CONFIG:		.word ((0 << 0) | (0 << 1) | (3 << 2) | (0xf << 4) | (0x246 << 8) | (0 << 24) | (0 << 26) | (0 << 27))
 #else
 VAL_EMIFF_SDRAM_CONFIG:		.word ((0 << 0) | (0 << 1) | (3 << 2) | (0xd << 4) | (0x246 << 8) | (0 << 24) | (0 << 26) | (0 << 27))
 #endif

 VAL_EMIFF_SDRAM_CONFIG2:	.word 0x00000003
 VAL_EMIFF_MRS:			.word 0x00000037

 /*
  * GPIO04 - Green LED (Red LED is connected to LED Pulse Generator)
  * GPIO07 - LAN91C111 reset
  */
 GPIO_DIRECTION:
 	.word 0x0000ff6f
 /*
  * Disable everything (green LED is connected via invertor)
  */
 GPIO_OUTPUT:
 	.word 0x00000010

 MUX_CONFIG_BASE:
 	.word 0xfffe1000

 MUX_CONFIG_VALUES:
 	.align 4
 	.word 0x00000000	@ FUNC_MUX_CTRL_0
 	.word 0x00000000	@ FUNC_MUX_CTRL_1
 	.word 0x00000000	@ FUNC_MUX_CTRL_2
 	.word 0x00000000	@ FUNC_MUX_CTRL_3
 	.word 0x00000000	@ FUNC_MUX_CTRL_4
 	.word 0x02080480	@ FUNC_MUX_CTRL_5
 	.word 0x0100001c	@ FUNC_MUX_CTRL_6
 	.word 0x0004800b	@ FUNC_MUX_CTRL_7
 	.word 0x10001200	@ FUNC_MUX_CTRL_8
 	.word 0x01201012	@ FUNC_MUX_CTRL_9
 	.word 0x02082248	@ FUNC_MUX_CTRL_A
 	.word 0x00000248	@ FUNC_MUX_CTRL_B
 	.word 0x12240000	@ FUNC_MUX_CTRL_C
 	.word 0x00002000	@ FUNC_MUX_CTRL_D
 	.word 0x00000000	@ PULL_DWN_CTRL_0
 	.word 0x00000800	@ PULL_DWN_CTRL_1
 	.word 0x01801000	@ PULL_DWN_CTRL_2
 	.word 0x00000000	@ PULL_DWN_CTRL_3
 	.word 0x00000000	@ GATE_INH_CTRL_0
 	.word 0x00000000	@ VOLTAGE_CTRL_0
 	.word 0x00000000	@ TEST_DBG_CTRL_0
 	.word 0x00000006	@ MOD_CONF_CTRL_0
 	.word 0x0000eaef	@ COMP_MODE_CTRL_0

 MUX_CONFIG_OFFSETS:
 	.align 1
 	.byte 0x00		@ FUNC_MUX_CTRL_0
 	.byte 0x04		@ FUNC_MUX_CTRL_1
 	.byte 0x08		@ FUNC_MUX_CTRL_2
 	.byte 0x10		@ FUNC_MUX_CTRL_3
 	.byte 0x14		@ FUNC_MUX_CTRL_4
 	.byte 0x18		@ FUNC_MUX_CTRL_5
 	.byte 0x1c		@ FUNC_MUX_CTRL_6
 	.byte 0x20		@ FUNC_MUX_CTRL_7
 	.byte 0x24		@ FUNC_MUX_CTRL_8
 	.byte 0x28		@ FUNC_MUX_CTRL_9
 	.byte 0x2c		@ FUNC_MUX_CTRL_A
 	.byte 0x30		@ FUNC_MUX_CTRL_B
 	.byte 0x34		@ FUNC_MUX_CTRL_C
 	.byte 0x38		@ FUNC_MUX_CTRL_D
 	.byte 0x40		@ PULL_DWN_CTRL_0
 	.byte 0x44		@ PULL_DWN_CTRL_1
 	.byte 0x48		@ PULL_DWN_CTRL_2
 	.byte 0x4c		@ PULL_DWN_CTRL_3
 	.byte 0x50		@ GATE_INH_CTRL_0
 	.byte 0x60		@ VOLTAGE_CTRL_0
 	.byte 0x70		@ TEST_DBG_CTRL_0
 	.byte 0x80		@ MOD_CONF_CTRL_0
 	.byte 0x0c		@ COMP_MODE_CTRL_0
 	.byte 0xff

 .globl lowlevel_init
 lowlevel_init:
 	/* Improve performance a bit... */
 	mrc	p15, 0, r1, c0, c0, 0		@ read C15 ID register
 	mrc	p15, 0, r1, c0, c0, 1		@ read C15 Cache information register
 	mrc	p15, 0, r1, c1, c0, 0		@ read C15 Control register
 	orr	r1, r1, #0x1000			@ enable I-cache, map interrupt vector 0xffff0000
 	mcr	p15, 0, r1, c1, c0, 0		@ write C15 Control register
 	mov	r1, #0x00
 	mcr	p15, 0, r1, c7, c5, 0		@ Flush I-cache
 	nop
 	nop
 	nop
 	nop

 	/* Setup clocking mode */
 	ldr	r0, OMAP5910_MPU_CLKM_BASE	@ base of CLOCK unit
 	ldrh	r1, [r0, #0x18]			@ ARM_SYST - get reset status
 	bic	r1, r1, #(7 << 11)		@ clear clock select
 	orr	r1, r1, #(2 << 11)		@ set synchronous scalable
 	mov	r2, #0
 loop:
 	cmp	r2, #1				@ this loop will wait for at least 100 cycles
 	streqh	r1, [r0, #0x18]			@ before issuing next request from MPU
 	add	r2, r2, #1			@ on the 1st run code is loaded into I-cache
 	cmp	r2, #16				@ and second run will set clocking mode
 	bne	loop
 	nop

 	/* Setup clock dividers */
 	ldr	r1, _OMAP5910_ARM_CKCTL
 	orr	r1, r1, #0x2000			@ enable DSP clock
 	strh	r1, [r0]			@ setup clock divisors

 	/* Setup DPLL to generate requested freq */
 	ldr	r0, OMAP5910_DPLL1_BASE		@ base of DPLL1 register
 	mov	r1, #0x0010			@ set PLL_ENABLE
 	orr	r1, r1, #0x2000			@ set IOB to new locking
 	orr	r1, r1, #(OMAP5910_DPLL_MUL << 7) @ setup multiplier CLKREF
 	orr	r1, r1, #(OMAP5910_DPLL_DIV << 5) @ setup divider CLKREF
 	strh	r1, [r0]			@ write

 locking:
 	ldrh	r1, [r0]			@ get DPLL value
 	tst	r1, #0x01
 	beq	locking				@ while LOCK not set

 	/* Enable clock */
 	ldr	r0, OMAP5910_MPU_CLKM_BASE	@ base of CLOCK unit
 	mov	r1, #(1 << 10)			@ disable idle mode do not check
 						@ nWAKEUP pin, other remain active
 	strh	r1, [r0, #0x04]
 	ldr	r1, _OMAP5910_ARM_EN_CLK
 	strh	r1, [r0, #0x08]
 	mov	r1, #0x003f			@ FLASH.RP not enabled in idle and
 	strh	r1, [r0, #0x0c]			@ max delayed ( 32 x CLKIN )

 	/* Configure 5910 pins functions to match our board. */
 	ldr     r0, MUX_CONFIG_BASE
 	adr	r1, MUX_CONFIG_VALUES
 	adr	r2, MUX_CONFIG_OFFSETS
 next_mux_cfg:
 	ldrb	r3, [r2], #1
 	ldr	r4, [r1], #4
 	cmp	r3, #0xff
 	strne	r4, [r0, r3]
 	bne	next_mux_cfg

 	/* Configure GPIO pins (also disables Green LED) */
 	ldr	r0, OMAP5910_GPIO_BASE
 	ldr	r1, GPIO_OUTPUT
 	strh    r1, [r0, #0x04]
 	ldr	r1, GPIO_DIRECTION
 	strh	r1, [r0, #0x08]

 	/* EnablePeripherals */
 	ldr	r0, OMAP5910_MPU_CLKM_BASE	@ CLOCK unit
 	mov	r1, #0x0001			@ Peripheral enable
 	strh	r1, [r0, #0x14]

 	/* Program LED Pulse Generator */
 	ldr	r0, OMAP5910_LPG1_BASE		@ 1st LED Pulse Generator
 	mov	r1, #0x7F			@ Set obscure frequency in
 	strb	r1, [r0, #0x00]			@ LCR
 	mov	r1, #0x01			@ Enable clock (CLK_EN) in
 	strb    r1, [r0, #0x04]			@ PMR

 	/* TIPB Lock UART1 */
 	ldr	r0, OMAP5910_TIPB_SWITCHES_BASE	@ prepare base of TIPB switches
 	mov	r1, #1				@ ARM allocated
 	strh	r1, [r0,#0x04]			@ clear IRQ line and status bits
 	strh	r1, [r0,#0x00]
 	ldrh	r1, [r0,#0x04]

 	/* Disable watchdog */
 	ldr	r0, OMAP5910_MPU_WD_TIMER_BASE
 	mov	r1, #0xf5
 	strh	r1, [r0, #0x8]
 	mov	r1, #0xa0
 	strh	r1, [r0, #0x8]

 	/* Enable MCLK */
 	ldr	r0, OMAP5910_ULPD_PWR_MNG_BASE
 	mov	r1, #0x6
 	strh	r1, [r0, #0x34]
 	strh	r1, [r0, #0x34]

 	/* Setup clock divisors */
 	ldr	r0, OMAP5910_ULPD_PWR_MNG_BASE	@ base of ULDPL DPLL1 register

 	mov	r1, #0x0010			@ set PLL_ENABLE
 	orr	r1, r1, #0x2000			@ set IOB to new locking
 	strh	r1, [r0]			@ write

 ulocking:
 	ldrh	r1, [r0]			@ get DPLL value
 	tst	r1, #1
 	beq	ulocking			@ while LOCK not set

 	/* EMIF init */
 	ldr	r0, OMAP5910_MPU_TC_BASE
 	ldrh	r1, [r0, #0x0c]			@ EMIFS_CONFIG_REG
 	bic	r1, r1, #0x0c			@ pwr down disabled, flash WP
 	orr	r1, r1, #0x01
 	str	r1, [r0, #0x0c]

 	ldr	r1, VAL_EMIFS_CS0_CONFIG
 	str	r1, [r0, #0x10]			@ EMIFS_CS0_CONFIG
 	ldr	r1, VAL_EMIFS_CS1_CONFIG
 	str	r1, [r0, #0x14]			@ EMIFS_CS1_CONFIG
 	ldr	r1, VAL_EMIFS_CS2_CONFIG
 	str	r1, [r0, #0x18]			@ EMIFS_CS2_CONFIG
 	ldr	r1, VAL_EMIFS_CS3_CONFIG
 	str	r1, [r0, #0x1c]			@ EMIFS_CS3_CONFIG
 	ldr	r1, VAL_EMIFS_DYN_WAIT
 	str	r1, [r0, #0x40]			@ EMIFS_CFG_DYN_WAIT

 	/* Setup SDRAM */
 	ldr	r1, VAL_EMIFF_SDRAM_CONFIG
 	str	r1, [r0, #0x20]			@ EMIFF_SDRAM_CONFIG
 	ldr	r1, VAL_EMIFF_SDRAM_CONFIG2
 	str	r1, [r0, #0x3c]			@ EMIFF_SDRAM_CONFIG2
 	ldr	r1, VAL_EMIFF_MRS
 	str	r1, [r0, #0x24]			@ EMIFF_MRS
 	/* SDRAM needs 100us to stabilize */
 	mov	r0, #0x4000
 sdelay:
 	subs	r0, r0, #0x1
 	bne 	sdelay

 	/* back to arch calling code */
 	mov	pc, lr
 .end
	/*
	* Board specific setup info
	*
	* (C) Copyright 2004 Ales Jindra <jindra@2n.cz>
	* (C) Copyright 2005 Ladislav Michl <michl@2n.cz>
	*
	* 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>

	_TEXT_BASE:
	.word TEXT_BASE /* SDRAM load addr from config.mk */

	OMAP5910_LPG1_BASE: .word 0xfffbd000
	OMAP5910_TIPB_SWITCHES_BASE: .word 0xfffbc800
	OMAP5910_MPU_TC_BASE: .word 0xfffecc00
	OMAP5910_MPU_CLKM_BASE: .word 0xfffece00
	OMAP5910_ULPD_PWR_MNG_BASE: .word 0xfffe0800
	OMAP5910_DPLL1_BASE: .word 0xfffecf00
	OMAP5910_GPIO_BASE: .word 0xfffce000
	OMAP5910_MPU_WD_TIMER_BASE: .word 0xfffec800
	OMAP5910_MPUI_BASE: .word 0xfffec900

	_OMAP5910_ARM_CKCTL: .word OMAP5910_ARM_CKCTL
	_OMAP5910_ARM_EN_CLK: .word OMAP5910_ARM_EN_CLK

	OMAP5910_MPUI_CTRL: .word 0x0000ff1b

	VAL_EMIFS_CS0_CONFIG: .word 0x00009090
	VAL_EMIFS_CS1_CONFIG: .word 0x00003031
	VAL_EMIFS_CS2_CONFIG: .word 0x0000a0a1
	VAL_EMIFS_CS3_CONFIG: .word 0x0000c0c0
	VAL_EMIFS_DYN_WAIT: .word 0x00000000
	/* autorefresh counter 0x246 ((64000000/13.4)-400)/8192) */
	/* SLRF SD_RET ARE SDRAM_TYPE ARCV SDRAM_FREQUENCY PWD CLK */

	#if (PHYS_SDRAM_1_SIZE == SZ_32M)
	VAL_EMIFF_SDRAM_CONFIG: .word ((0 << 0) \| (0 << 1) \| (3 << 2) \| (0xf << 4) \| (0x246 << 8) \| (0 << 24) \| (0 << 26) \| (0 << 27))
	#else
	VAL_EMIFF_SDRAM_CONFIG: .word ((0 << 0) \| (0 << 1) \| (3 << 2) \| (0xd << 4) \| (0x246 << 8) \| (0 << 24) \| (0 << 26) \| (0 << 27))
	#endif

	VAL_EMIFF_SDRAM_CONFIG2: .word 0x00000003
	VAL_EMIFF_MRS: .word 0x00000037

	/*
	* GPIO04 - Green LED (Red LED is connected to LED Pulse Generator)
	* GPIO07 - LAN91C111 reset
	*/
	GPIO_DIRECTION:
	.word 0x0000ff6f
	/*
	* Disable everything (green LED is connected via invertor)
	*/
	GPIO_OUTPUT:
	.word 0x00000010

	MUX_CONFIG_BASE:
	.word 0xfffe1000

	MUX_CONFIG_VALUES:
	.align 4
	.word 0x00000000 @ FUNC_MUX_CTRL_0
	.word 0x00000000 @ FUNC_MUX_CTRL_1
	.word 0x00000000 @ FUNC_MUX_CTRL_2
	.word 0x00000000 @ FUNC_MUX_CTRL_3
	.word 0x00000000 @ FUNC_MUX_CTRL_4
	.word 0x02080480 @ FUNC_MUX_CTRL_5
	.word 0x0100001c @ FUNC_MUX_CTRL_6
	.word 0x0004800b @ FUNC_MUX_CTRL_7
	.word 0x10001200 @ FUNC_MUX_CTRL_8
	.word 0x01201012 @ FUNC_MUX_CTRL_9
	.word 0x02082248 @ FUNC_MUX_CTRL_A
	.word 0x00000248 @ FUNC_MUX_CTRL_B
	.word 0x12240000 @ FUNC_MUX_CTRL_C
	.word 0x00002000 @ FUNC_MUX_CTRL_D
	.word 0x00000000 @ PULL_DWN_CTRL_0
	.word 0x00000800 @ PULL_DWN_CTRL_1
	.word 0x01801000 @ PULL_DWN_CTRL_2
	.word 0x00000000 @ PULL_DWN_CTRL_3
	.word 0x00000000 @ GATE_INH_CTRL_0
	.word 0x00000000 @ VOLTAGE_CTRL_0
	.word 0x00000000 @ TEST_DBG_CTRL_0
	.word 0x00000006 @ MOD_CONF_CTRL_0
	.word 0x0000eaef @ COMP_MODE_CTRL_0

	MUX_CONFIG_OFFSETS:
	.align 1
	.byte 0x00 @ FUNC_MUX_CTRL_0
	.byte 0x04 @ FUNC_MUX_CTRL_1
	.byte 0x08 @ FUNC_MUX_CTRL_2
	.byte 0x10 @ FUNC_MUX_CTRL_3
	.byte 0x14 @ FUNC_MUX_CTRL_4
	.byte 0x18 @ FUNC_MUX_CTRL_5
	.byte 0x1c @ FUNC_MUX_CTRL_6
	.byte 0x20 @ FUNC_MUX_CTRL_7
	.byte 0x24 @ FUNC_MUX_CTRL_8
	.byte 0x28 @ FUNC_MUX_CTRL_9
	.byte 0x2c @ FUNC_MUX_CTRL_A
	.byte 0x30 @ FUNC_MUX_CTRL_B
	.byte 0x34 @ FUNC_MUX_CTRL_C
	.byte 0x38 @ FUNC_MUX_CTRL_D
	.byte 0x40 @ PULL_DWN_CTRL_0
	.byte 0x44 @ PULL_DWN_CTRL_1
	.byte 0x48 @ PULL_DWN_CTRL_2
	.byte 0x4c @ PULL_DWN_CTRL_3
	.byte 0x50 @ GATE_INH_CTRL_0
	.byte 0x60 @ VOLTAGE_CTRL_0
	.byte 0x70 @ TEST_DBG_CTRL_0
	.byte 0x80 @ MOD_CONF_CTRL_0
	.byte 0x0c @ COMP_MODE_CTRL_0
	.byte 0xff

	.globl lowlevel_init
	lowlevel_init:
	/* Improve performance a bit... */
	mrc p15, 0, r1, c0, c0, 0 @ read C15 ID register
	mrc p15, 0, r1, c0, c0, 1 @ read C15 Cache information register
	mrc p15, 0, r1, c1, c0, 0 @ read C15 Control register
	orr r1, r1, #0x1000 @ enable I-cache, map interrupt vector 0xffff0000
	mcr p15, 0, r1, c1, c0, 0 @ write C15 Control register
	mov r1, #0x00
	mcr p15, 0, r1, c7, c5, 0 @ Flush I-cache
	nop
	nop
	nop
	nop

	/* Setup clocking mode */
	ldr r0, OMAP5910_MPU_CLKM_BASE @ base of CLOCK unit
	ldrh r1, [r0, #0x18] @ ARM_SYST - get reset status
	bic r1, r1, #(7 << 11) @ clear clock select
	orr r1, r1, #(2 << 11) @ set synchronous scalable
	mov r2, #0
	loop:
	cmp r2, #1 @ this loop will wait for at least 100 cycles
	streqh r1, [r0, #0x18] @ before issuing next request from MPU
	add r2, r2, #1 @ on the 1st run code is loaded into I-cache
	cmp r2, #16 @ and second run will set clocking mode
	bne loop
	nop

	/* Setup clock dividers */
	ldr r1, _OMAP5910_ARM_CKCTL
	orr r1, r1, #0x2000 @ enable DSP clock
	strh r1, [r0] @ setup clock divisors

	/* Setup DPLL to generate requested freq */
	ldr r0, OMAP5910_DPLL1_BASE @ base of DPLL1 register
	mov r1, #0x0010 @ set PLL_ENABLE
	orr r1, r1, #0x2000 @ set IOB to new locking
	orr r1, r1, #(OMAP5910_DPLL_MUL << 7) @ setup multiplier CLKREF
	orr r1, r1, #(OMAP5910_DPLL_DIV << 5) @ setup divider CLKREF
	strh r1, [r0] @ write

	locking:
	ldrh r1, [r0] @ get DPLL value
	tst r1, #0x01
	beq locking @ while LOCK not set

	/* Enable clock */
	ldr r0, OMAP5910_MPU_CLKM_BASE @ base of CLOCK unit
	mov r1, #(1 << 10) @ disable idle mode do not check
	@ nWAKEUP pin, other remain active
	strh r1, [r0, #0x04]
	ldr r1, _OMAP5910_ARM_EN_CLK
	strh r1, [r0, #0x08]
	mov r1, #0x003f @ FLASH.RP not enabled in idle and
	strh r1, [r0, #0x0c] @ max delayed ( 32 x CLKIN )

	/* Configure 5910 pins functions to match our board. */
	ldr r0, MUX_CONFIG_BASE
	adr r1, MUX_CONFIG_VALUES
	adr r2, MUX_CONFIG_OFFSETS
	next_mux_cfg:
	ldrb r3, [r2], #1
	ldr r4, [r1], #4
	cmp r3, #0xff
	strne r4, [r0, r3]
	bne next_mux_cfg

	/* Configure GPIO pins (also disables Green LED) */
	ldr r0, OMAP5910_GPIO_BASE
	ldr r1, GPIO_OUTPUT
	strh r1, [r0, #0x04]
	ldr r1, GPIO_DIRECTION
	strh r1, [r0, #0x08]

	/* EnablePeripherals */
	ldr r0, OMAP5910_MPU_CLKM_BASE @ CLOCK unit
	mov r1, #0x0001 @ Peripheral enable
	strh r1, [r0, #0x14]

	/* Program LED Pulse Generator */
	ldr r0, OMAP5910_LPG1_BASE @ 1st LED Pulse Generator
	mov r1, #0x7F @ Set obscure frequency in
	strb r1, [r0, #0x00] @ LCR
	mov r1, #0x01 @ Enable clock (CLK_EN) in
	strb r1, [r0, #0x04] @ PMR

	/* TIPB Lock UART1 */
	ldr r0, OMAP5910_TIPB_SWITCHES_BASE @ prepare base of TIPB switches
	mov r1, #1 @ ARM allocated
	strh r1, [r0,#0x04] @ clear IRQ line and status bits
	strh r1, [r0,#0x00]
	ldrh r1, [r0,#0x04]

	/* Disable watchdog */
	ldr r0, OMAP5910_MPU_WD_TIMER_BASE
	mov r1, #0xf5
	strh r1, [r0, #0x8]
	mov r1, #0xa0
	strh r1, [r0, #0x8]

	/* Enable MCLK */
	ldr r0, OMAP5910_ULPD_PWR_MNG_BASE
	mov r1, #0x6
	strh r1, [r0, #0x34]
	strh r1, [r0, #0x34]

	/* Setup clock divisors */
	ldr r0, OMAP5910_ULPD_PWR_MNG_BASE @ base of ULDPL DPLL1 register

	mov r1, #0x0010 @ set PLL_ENABLE
	orr r1, r1, #0x2000 @ set IOB to new locking
	strh r1, [r0] @ write

	ulocking:
	ldrh r1, [r0] @ get DPLL value
	tst r1, #1
	beq ulocking @ while LOCK not set

	/* EMIF init */
	ldr r0, OMAP5910_MPU_TC_BASE
	ldrh r1, [r0, #0x0c] @ EMIFS_CONFIG_REG
	bic r1, r1, #0x0c @ pwr down disabled, flash WP
	orr r1, r1, #0x01
	str r1, [r0, #0x0c]

	ldr r1, VAL_EMIFS_CS0_CONFIG
	str r1, [r0, #0x10] @ EMIFS_CS0_CONFIG
	ldr r1, VAL_EMIFS_CS1_CONFIG
	str r1, [r0, #0x14] @ EMIFS_CS1_CONFIG
	ldr r1, VAL_EMIFS_CS2_CONFIG
	str r1, [r0, #0x18] @ EMIFS_CS2_CONFIG
	ldr r1, VAL_EMIFS_CS3_CONFIG
	str r1, [r0, #0x1c] @ EMIFS_CS3_CONFIG
	ldr r1, VAL_EMIFS_DYN_WAIT
	str r1, [r0, #0x40] @ EMIFS_CFG_DYN_WAIT

	/* Setup SDRAM */
	ldr r1, VAL_EMIFF_SDRAM_CONFIG
	str r1, [r0, #0x20] @ EMIFF_SDRAM_CONFIG
	ldr r1, VAL_EMIFF_SDRAM_CONFIG2
	str r1, [r0, #0x3c] @ EMIFF_SDRAM_CONFIG2
	ldr r1, VAL_EMIFF_MRS
	str r1, [r0, #0x24] @ EMIFF_MRS
	/* SDRAM needs 100us to stabilize */
	mov r0, #0x4000
	sdelay:
	subs r0, r0, #0x1
	bne sdelay

	/* back to arch calling code */
	mov pc, lr
	.end