[PATCH] eukrea_cpuimx35: update board support

[Eric Bénard]

- support NAND internal boot
- update external boot init sequence
- LCD enable

Signed-off-by: Eric Bénard <eric at eukrea.com>
---
 arch/arm/boards/eukrea_cpuimx35/env/bin/init      |    4 +-
 arch/arm/boards/eukrea_cpuimx35/eukrea_cpuimx35.c |    2 +-
 arch/arm/boards/eukrea_cpuimx35/flash_header.c    |   23 ++++++++++-----------
 arch/arm/boards/eukrea_cpuimx35/lowlevel.c        |   20 +++++++++++-------
 4 files changed, 26 insertions(+), 23 deletions(-)

diff --git a/arch/arm/boards/eukrea_cpuimx35/env/bin/init b/arch/arm/boards/eukrea_cpuimx35/env/bin/init
index 90007cd..b56d7b5 100644
--- a/arch/arm/boards/eukrea_cpuimx35/env/bin/init
+++ b/arch/arm/boards/eukrea_cpuimx35/env/bin/init
@@ -15,12 +15,12 @@ fi
 if [ -f /env/logo.bmp ]; then
 	fb0.enable=1
 	bmp /env/logo.bmp
-	gpio_direction_out 1 1
+	gpio_set_value 1 1
 elif [ -f /env/logo.bmp.lzo ]; then
 	unlzo /env/logo.bmp.lzo /logo.bmp
 	fb0.enable=1
 	bmp /logo.bmp
-	gpio_direction_out 1 1
+	gpio_set_value 1 1
 fi
 
 if [ -z $eth0.ethaddr ]; then
diff --git a/arch/arm/boards/eukrea_cpuimx35/eukrea_cpuimx35.c b/arch/arm/boards/eukrea_cpuimx35/eukrea_cpuimx35.c
index 63d019a..39490cc 100644
--- a/arch/arm/boards/eukrea_cpuimx35/eukrea_cpuimx35.c
+++ b/arch/arm/boards/eukrea_cpuimx35/eukrea_cpuimx35.c
@@ -219,7 +219,7 @@ static int eukrea_cpuimx35_console_init(void)
 		ARRAY_SIZE(eukrea_cpuimx35_pads));
 
 	/* screen default on to prevent flicker */
-	gpio_direction_output(4, 1);
+	gpio_direction_output(4, 0);
 	/* backlight default off */
 	gpio_direction_output(1, 0);
 	/* led default off */
diff --git a/arch/arm/boards/eukrea_cpuimx35/flash_header.c b/arch/arm/boards/eukrea_cpuimx35/flash_header.c
index 285a2d4..0cb493d 100644
--- a/arch/arm/boards/eukrea_cpuimx35/flash_header.c
+++ b/arch/arm/boards/eukrea_cpuimx35/flash_header.c
@@ -12,19 +12,18 @@ void __naked __flash_header_start go(void)
 struct imx_dcd_entry __dcd_entry_section dcd_entry[] = {
 	{ .ptr_type = 4, .addr = 0x53F80004, .val = 0x00821000, },
 	{ .ptr_type = 4, .addr = 0x53F80004, .val = 0x00821000, },
-	{ .ptr_type = 4, .addr = 0xB8001010, .val = 0x00000004, },
-	{ .ptr_type = 4, .addr = 0xB8001010, .val = 0x0000000C, },
-	{ .ptr_type = 4, .addr = 0xB8001004, .val = 0x0009572B, },
-	{ .ptr_type = 4, .addr = 0xB8001000, .val = 0x92220000, },
-	{ .ptr_type = 1, .addr = 0x80000400, .val = 0xda, },
-	{ .ptr_type = 4, .addr = 0xB8001000, .val = 0xA2220000, },
-	{ .ptr_type = 1, .addr = 0x80000000, .val = 0x87654321, },
-	{ .ptr_type = 1, .addr = 0x80000000, .val = 0x87654321, },
-	{ .ptr_type = 4, .addr = 0xB8001000, .val = 0xB2220000, },
+	{ .ptr_type = 4, .addr = 0xb8001010, .val = 0x00000004, },
+	{ .ptr_type = 4, .addr = 0xb8001000, .val = 0x92100000, },
+	{ .ptr_type = 1, .addr = 0x80000400, .val = 0x12344321, },
+	{ .ptr_type = 4, .addr = 0xb8001000, .val = 0xa2100000, },
+	{ .ptr_type = 4, .addr = 0x80000000, .val = 0x12344321, },
+	{ .ptr_type = 4, .addr = 0x80000000, .val = 0x12344321, },
+	{ .ptr_type = 4, .addr = 0xb8001000, .val = 0xb2100000, },
 	{ .ptr_type = 1, .addr = 0x80000033, .val = 0xda, },
-	{ .ptr_type = 1, .addr = 0x82000000, .val = 0xda, },
-	{ .ptr_type = 4, .addr = 0xB8001000, .val = 0x82224080, },
-	{ .ptr_type = 4, .addr = 0xB8001010, .val = 0x00000004, },
+	{ .ptr_type = 1, .addr = 0x81000000, .val = 0xff, },
+	{ .ptr_type = 4, .addr = 0xb8001000, .val = 0x82226080, },
+	{ .ptr_type = 4, .addr = 0xb8001004, .val = 0x0009572B, },
+	{ .ptr_type = 4, .addr = 0x53f80008, .val = 0x20034000, },
 };
 
 
diff --git a/arch/arm/boards/eukrea_cpuimx35/lowlevel.c b/arch/arm/boards/eukrea_cpuimx35/lowlevel.c
index aad334d..6c0e106 100644
--- a/arch/arm/boards/eukrea_cpuimx35/lowlevel.c
+++ b/arch/arm/boards/eukrea_cpuimx35/lowlevel.c
@@ -66,6 +66,7 @@ void __bare_init __naked board_init_lowlevel(void)
 	unsigned int *trg, *src;
 	int i;
 #endif
+	register uint32_t loops = 0x20000;
 
 	r = get_cr();
 	r |= CR_Z; /* Flow prediction (Z) */
@@ -118,7 +119,7 @@ void __bare_init __naked board_init_lowlevel(void)
 	writel(r, ccm_base + CCM_CGR0);
 
 	r = readl(ccm_base + CCM_CGR1);
-	r |= 0x00000C00;
+	r |= 0x00030C00;
 	r |= 0x00000003;
 	writel(r, ccm_base + CCM_CGR1);
 
@@ -132,31 +133,34 @@ void __bare_init __naked board_init_lowlevel(void)
 		board_init_lowlevel_return();
 
 	/* Init Mobile DDR */
+	writel(0x0000000E, ESDMISC);
 	writel(0x00000004, ESDMISC);
-	writel(0x0000000C, ESDMISC);
+	__asm__ volatile ("1:\n"
+			"subs %0, %1, #1\n"
+			"bne 1b":"=r" (loops):"0" (loops));
+
 	writel(0x0009572B, ESDCFG0);
 	writel(0x92220000, ESDCTL0);
 	writeb(0xda, IMX_SDRAM_CS0 + 0x400);
 	writel(0xA2220000, ESDCTL0);
-	writel(0x87654321, IMX_SDRAM_CS0);
-	writel(0x87654321, IMX_SDRAM_CS0);
+	writeb(0xda, IMX_SDRAM_CS0);
+	writeb(0xda, IMX_SDRAM_CS0);
 	writel(0xB2220000, ESDCTL0);
 	writeb(0xda, IMX_SDRAM_CS0 + 0x33);
 	writeb(0xda, IMX_SDRAM_CS0 + 0x2000000);
-	writel(0x82224080, ESDCTL0);
-	writel(0x00000004, ESDMISC);
+	writel(0x82228080, ESDCTL0);
 
 #ifdef CONFIG_NAND_IMX_BOOT
 	/* skip NAND boot if not running from NFC space */
 	r = get_pc();
-	if (r < IMX_NFC_BASE || r > IMX_NFC_BASE + 0x1000)
+	if (r < IMX_NFC_BASE || r > IMX_NFC_BASE + 0x800)
 		board_init_lowlevel_return();
 
 	src = (unsigned int *)IMX_NFC_BASE;
 	trg = (unsigned int *)TEXT_BASE;
 
 	/* Move ourselves out of NFC SRAM */
-	for (i = 0; i < 0x1000 / sizeof(int); i++)
+	for (i = 0; i < 0x800 / sizeof(int); i++)
 		*trg++ = *src++;
 
 	/* Jump to SDRAM */
-- 
1.7.0.4