Patchwork [U-Boot,v2,3/6] MX35: Add soc_boot_mode and soc_boot_device to MX35

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Submitter Stefano Babic
Date Oct. 11, 2012, 7:11 a.m.
Message ID <1349939506-4109-4-git-send-email-sbabic@denx.de>
Download mbox | patch
Permalink /patch/190824/
State Awaiting Upstream
Delegated to: Stefano Babic
Headers show

Comments

Stefano Babic - Oct. 11, 2012, 7:11 a.m.
The functions are required to use the generic
SPL Framework.

Signed-off-by: Stefano Babic <sbabic@denx.de>
---

 arch/arm/cpu/arm1136/mx35/generic.c           |   75 +++++++++++++++++++++++++
 arch/arm/cpu/arm1136/u-boot-spl.lds           |   62 ++++++++++++++++++++
 arch/arm/include/asm/arch-mx35/mmc_host_def.h |   31 ++++++++++
 arch/arm/include/asm/arch-mx35/spl.h          |   38 +++++++++++++
 4 files changed, 206 insertions(+)
 create mode 100644 arch/arm/cpu/arm1136/u-boot-spl.lds
 create mode 100644 arch/arm/include/asm/arch-mx35/mmc_host_def.h
 create mode 100644 arch/arm/include/asm/arch-mx35/spl.h

Patch

diff --git a/arch/arm/cpu/arm1136/mx35/generic.c b/arch/arm/cpu/arm1136/mx35/generic.c
index 41e9639..98aa4d1 100644
--- a/arch/arm/cpu/arm1136/mx35/generic.c
+++ b/arch/arm/cpu/arm1136/mx35/generic.c
@@ -35,6 +35,7 @@ 
 #include <fsl_esdhc.h>
 #endif
 #include <netdev.h>
+#include <spl.h>
 
 #define CLK_CODE(arm, ahb, sel) (((arm) << 16) + ((ahb) << 8) + (sel))
 #define CLK_CODE_ARM(c)		(((c) >> 16) & 0xFF)
@@ -492,3 +493,77 @@  void reset_cpu(ulong addr)
 	struct wdog_regs *wdog = (struct wdog_regs *)WDOG_BASE_ADDR;
 	writew(4, &wdog->wcr);
 }
+
+#define RCSR_MEM_CTL_WEIM	0
+#define RCSR_MEM_CTL_NAND	1
+#define RCSR_MEM_CTL_ATA	2
+#define RCSR_MEM_CTL_EXPANSION	3
+#define RCSR_MEM_TYPE_NOR	0
+#define RCSR_MEM_TYPE_ONENAND	2
+#define RCSR_MEM_TYPE_SD	0
+#define RCSR_MEM_TYPE_I2C	2
+#define RCSR_MEM_TYPE_SPI	3
+
+u32 spl_boot_device(void)
+{
+	struct ccm_regs *ccm =
+		(struct ccm_regs *)IMX_CCM_BASE;
+
+	u32 rcsr = readl(&ccm->rcsr);
+	u32 mem_type, mem_ctl;
+
+	/* In external mode, no boot device is returned */
+	if ((rcsr >> 10) & 0x03)
+		return BOOT_DEVICE_NONE;
+
+	mem_ctl = (rcsr >> 25) & 0x03;
+	mem_type = (rcsr >> 23) & 0x03;
+
+	switch (mem_ctl) {
+	case RCSR_MEM_CTL_WEIM:
+		switch (mem_type) {
+		case RCSR_MEM_TYPE_NOR:
+			return BOOT_DEVICE_NOR;
+		case RCSR_MEM_TYPE_ONENAND:
+			return BOOT_DEVICE_ONE_NAND;
+		default:
+			return BOOT_DEVICE_NONE;
+		}
+	case RCSR_MEM_CTL_NAND:
+		return BOOT_DEVICE_NAND;
+	case RCSR_MEM_CTL_EXPANSION:
+		switch (mem_type) {
+		case RCSR_MEM_TYPE_SD:
+			return BOOT_DEVICE_MMC1;
+		case RCSR_MEM_TYPE_I2C:
+			return BOOT_DEVICE_I2C;
+		case RCSR_MEM_TYPE_SPI:
+			return BOOT_DEVICE_SPI;
+		default:
+			return BOOT_DEVICE_NONE;
+		}
+	}
+
+	return BOOT_DEVICE_NONE;
+}
+
+#ifdef CONFIG_SPL_BUILD
+u32 spl_boot_mode(void)
+{
+	switch (spl_boot_device()) {
+	case BOOT_DEVICE_MMC1:
+#ifdef CONFIG_SPL_FAT_SUPPORT
+		return MMCSD_MODE_FAT;
+#else
+		return MMCSD_MODE_RAW;
+#endif
+		break;
+	case BOOT_DEVICE_NAND:
+		return 0;
+		break;
+	default:
+		puts("spl: ERROR:  unsupported device\n");
+		hang();
+	}
+}
+#endif
diff --git a/arch/arm/cpu/arm1136/u-boot-spl.lds b/arch/arm/cpu/arm1136/u-boot-spl.lds
new file mode 100644
index 0000000..a0462ab
--- /dev/null
+++ b/arch/arm/cpu/arm1136/u-boot-spl.lds
@@ -0,0 +1,62 @@ 
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
+ *
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *	Aneesh V <aneesh@ti.com>
+ *
+ * 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
+ */
+
+MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE,\
+		LENGTH = CONFIG_SPL_MAX_SIZE }
+MEMORY { .sdram : ORIGIN = CONFIG_SPL_BSS_START_ADDR, \
+		LENGTH = CONFIG_SPL_BSS_MAX_SIZE }
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	.text      :
+	{
+	__start = .;
+	  arch/arm/cpu/arm1136/start.o	(.text)
+	  *(.text*)
+	} >.sram
+
+	. = ALIGN(4);
+	.rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } >.sram
+
+	. = ALIGN(4);
+	.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
+	. = ALIGN(4);
+	__image_copy_end = .;
+	_end = .;
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start = .;
+		*(.bss*)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} >.sdram
+}
diff --git a/arch/arm/include/asm/arch-mx35/mmc_host_def.h b/arch/arm/include/asm/arch-mx35/mmc_host_def.h
new file mode 100644
index 0000000..775b955
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx35/mmc_host_def.h
@@ -0,0 +1,31 @@ 
+/*
+ * (C) Copyright 2008
+ * Texas Instruments, <www.ti.com>
+ * Syed Mohammed Khasim <khasim@ti.com>
+ *
+ * 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's version 2 of
+ * the License.
+ *
+ * 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
+ */
+
+#ifndef MMC_HOST_DEF_H
+#define MMC_HOST_DEF_H
+
+/* Driver definitions */
+#define MMCSD_SECTOR_SIZE		512
+
+#endif /* MMC_HOST_DEF_H */
diff --git a/arch/arm/include/asm/arch-mx35/spl.h b/arch/arm/include/asm/arch-mx35/spl.h
new file mode 100644
index 0000000..91d11ae
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx35/spl.h
@@ -0,0 +1,38 @@ 
+/*
+ * (C) Copyright 2012
+ * Texas Instruments, <www.ti.com>
+ *
+ * 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
+ */
+#ifndef	_ASM_ARCH_SPL_H_
+#define	_ASM_SPL_H_
+
+#define BOOT_DEVICE_NONE	0
+#define BOOT_DEVICE_XIP		1
+#define BOOT_DEVICE_XIPWAIT	2
+#define BOOT_DEVICE_NAND	3
+#define BOOT_DEVICE_ONE_NAND	4
+#define BOOT_DEVICE_MMC1	5
+#define BOOT_DEVICE_MMC2	6
+#define BOOT_DEVICE_MMC2_2	7
+#define BOOT_DEVICE_NOR		8
+#define BOOT_DEVICE_I2C		9
+#define BOOT_DEVICE_SPI		10
+
+#endif