Update NetStar board

Patch by Ladislav Michl, 03 Nov 2005

CHANGELOG

@@ -2,6 +2,9 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* Update NetStar board
+  Patch by Ladislav Michl, 03 Nov 2005
+
 * Make code better readable.
   Patch by Ladislav Michl, 14 Sep 2005
 

board/netstar/crcek.S

@@ -13,6 +13,7 @@
  *	u32 - crc32
  */
 
+#include <config.h>
 #include "crcek.h"
 
 /**
@@ -39,7 +40,7 @@
 	.macro crcuj, offset, size
 	mov	r0, #0
 	ldr	r1, \offset
-	ldr	r2, [r1]
+	ldr	r2, [r1], #4
 	cmp	r2, r0		@ no data, no problem
 	beq	2f
 	tst	r2, #3		@ unaligned size
@@ -47,7 +48,6 @@
 	ldr	r3, \size
 	cmp	r2, r3		@ bogus size
 	bhi	2f
-	add	r1, r1, #4
 	do_crc32
 	ldr	r1, [r1]
 2:
@@ -55,16 +55,71 @@
 	.endm
 
 	.macro wait, reg
-	mov	\reg, #0x1000
+	mov	\reg, #0x100000
 3:
 	subs	\reg, \reg, #0x1
 	bne 	3b
-
 	.endm
+
 .text
 .globl crcek
 crcek:
-	b	crc2_bad
+	/* Enable I-cache */
+	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, 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, CKCTL_VAL
+	orr	r1, r1, #0x2000			@ enable DSP clock
+	strh	r1, [r0]			@ setup clock divisors
+
+	/* Setup DPLL to generate requested freq */
+	ldr	r0, 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, 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, EN_CLK_VAL
+	strh	r1, [r0, #0x08]
+	mov	r1, #0x003f			@ FLASH.RP not enabled in idle and
+	strh	r1, [r0, #0x0c]			@ max delayed ( 32 x CLKIN )
+
+
 	mov	r6, #0
 	crcuj	_LOADER1_OFFSET, _LOADER_SIZE
 	bne	crc1_bad
@@ -76,9 +131,8 @@ crc1_bad:
 crc2_bad:
 	ldr	r3, _LOADER1_OFFSET
 	ldr	r4, _LOADER2_OFFSET
-	b	boot_2nd
-	tst	r6, #3
-	beq	one_is_bad	@ one of them (or both) has bad crc
+	teq	r6, #3
+	bne	one_is_bad	@ one of them (or both) has bad crc
 	ldr	r1, [r3, #4]
 	ldr	r2, [r4, #4]
 	cmp	r1, r2		@ boot 2nd loader if versions differ
@@ -90,6 +144,7 @@ one_is_bad:
 	tst	r6, #2
 	bne	boot_2nd
 @ We are doomed, so let user know.
+hell:
 	ldr	r0, GPIO_BASE	@ configure GPIO pins
 	ldr	r1, GPIO_DIRECTION
 	strh	r1, [r0, #0x08]
@@ -171,6 +226,15 @@ CRC32_TABLE:
 
 GPIO_BASE:
 	.word 0xfffce000
+MPU_CLKM_BASE:
+	.word 0xfffece00
+DPLL1_BASE:
+	.word 0xfffecf00
+
+CKCTL_VAL:
+	.word OMAP5910_ARM_CKCTL
+EN_CLK_VAL:
+	.word OMAP5910_ARM_EN_CLK
 GPIO_DIRECTION:
 	.word 0x0000ffe7
 

board/netstar/crcit.c

@@ -77,7 +77,7 @@ int main(int argc, char **argv)
 	} else if ((argc == 4) && (strcmp(argv[1], "-v") == 0)) {
 		char *endptr, *nptr = argv[2];
 		unsigned ver = strtoul(nptr, &endptr, 0);
-		if (nptr != '\0' && endptr == '\0')
+		if (*nptr != '\0' && *endptr == '\0')
 			return doit(argv[3], ver);
 	}
 	fprintf(stderr, "Usage: crcit [-v version] <image>\n");

board/netstar/eeprom.c

@@ -213,3 +213,4 @@ int eeprom(int argc, char *argv[])
 
 	return 0;
 }
+

board/netstar/nand.c

@@ -57,10 +57,11 @@ static int netstar_nand_ready(struct mtd_info *mtd)
 
 void board_nand_init(struct nand_chip *nand)
 {
-	nand->options = NAND_SAMSUNG_LP_OPTIONS;
+        nand->options = NAND_SAMSUNG_LP_OPTIONS;
 	nand->eccmode = NAND_ECC_SOFT;
-	nand->hwcontrol = netstar_nand_hwcontrol;
+        nand->hwcontrol = netstar_nand_hwcontrol;
 /*	nand->dev_ready = netstar_nand_ready; */
 	nand->chip_delay = 18;
 }
 #endif
+

board/netstar/netstar.c

@@ -27,7 +27,6 @@ DECLARE_GLOBAL_DATA_PTR;
 int board_init(void)
 {
 	/* arch number of NetStar board */
-	/* TODO: use define from asm/mach-types.h */
 	gd->bd->bi_arch_number = 692;
 
 	/* adress of boot parameters */
@@ -51,16 +50,13 @@ int dram_init(void)
 	return 0;
 }
 
-extern void partition_flash(void);
-
 int misc_init_r(void)
 {
 	return 0;
 }
 
-extern void nand_init(void);
-
 int board_late_init(void)
 {
 	return 0;
 }
+

board/netstar/setup.S

@@ -58,10 +58,10 @@ VAL_EMIFF_SDRAM_CONFIG:		.word ((0 << 0) | (0 << 1) | (3 << 2) | (0xf << 4) | (0
 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_SDRAM_CONFIG2:	.word 0x00000003 
 VAL_EMIFF_MRS:			.word 0x00000037
 
-/*
+/* 
  * GPIO04 - Green LED (Red LED is connected to LED Pulse Generator)
  * GPIO07 - LAN91C111 reset
  */
@@ -106,7 +106,7 @@ MUX_CONFIG_OFFSETS:
 	.align 1
 	.byte 0x00		@ FUNC_MUX_CTRL_0
 	.byte 0x04		@ FUNC_MUX_CTRL_1
-	.byte 0x08		@ FUNC_MUX_CTRL_2
+	.byte 0x08		@ FUNC_MUX_CTRL_2 
 	.byte 0x10		@ FUNC_MUX_CTRL_3
 	.byte 0x14		@ FUNC_MUX_CTRL_4
 	.byte 0x18		@ FUNC_MUX_CTRL_5
@@ -145,25 +145,23 @@ lowlevel_init:
 	nop
 
 	/* Setup clocking mode */
-	ldr	r0, OMAP5910_MPU_CLKM_BASE	@ prepare base of CLOCK unit
-	ldrh	r1, [r0, #0x18]			@ get reset status
+	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				@ set wait counter to 100 clock cycles
-
-icache_loop:
-	cmp	r2, #0x01
-	streqh	r1, [r0, #0x18]
-	add	r2, r2, #0x01
-	cmp	r2, #0x10
-	bne	icache_loop
+	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 divisors */
-	ldr	r0, OMAP5910_MPU_CLKM_BASE	@ base of CLOCK unit
+	/* Setup clock dividers */
 	ldr	r1, _OMAP5910_ARM_CKCTL
 	orr	r1, r1, #0x2000			@ enable DSP clock
-	strh	r1, [r0, #0x00]			@ setup clock divisors
+	strh	r1, [r0]			@ setup clock divisors
 
 	/* Setup DPLL to generate requested freq */
 	ldr	r0, OMAP5910_DPLL1_BASE		@ base of DPLL1 register
@@ -182,18 +180,17 @@ locking:
 	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]
+	strh	r1, [r0, #0x04] 
 	ldr	r1, _OMAP5910_ARM_EN_CLK
 	strh	r1, [r0, #0x08]
 	mov	r1, #0x003f			@ FLASH.RP not enabled in idle and
-						@ max delayed ( 32 x CLKIN )
-	strh	r1, [r0, #0x0c]
+	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:
+next_mux_cfg:	 
 	ldrb	r3, [r2], #1
 	ldr	r4, [r1], #4
 	cmp	r3, #0xff
@@ -240,15 +237,15 @@ next_mux_cfg:
 	strh	r1, [r0, #0x34]
 
 	/* Setup clock divisors */
-	ldr	r0, OMAP5910_ULPD_PWR_MNG_BASE	@ base of ULDPL DPLL1 register
+	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
+	orr	r1, r1, #0x2000			@ set IOB to new locking 
+	strh	r1, [r0]			@ write 
 
 ulocking:
 	ldrh	r1, [r0]			@ get DPLL value
-	tst	r1, #1
+	tst	r1, #1			      
 	beq	ulocking			@ while LOCK not set
 
 	/* EMIF init */
@@ -257,7 +254,7 @@ ulocking:
 	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