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authorPaul Kocialkowski <contact@paulk.fr>2015-07-15 16:02:19 +0200
committerTom Rini <trini@konsulko.com>2015-07-27 15:02:03 -0400
commit60c7c30aa084588ef974663be3d22a1de7f66cbb (patch)
treeff1557b8d5f00469e5ce537466870247b6cf9e68 /arch/arm/include
parenta350c6a60223f7a60228ed563d2e7b02fb7944ab (diff)
omap-common: Common boot code OMAP3 support and cleanup
This introduces OMAP3 support for the common omap boot code, as well as a major cleanup of the common omap boot code. First, the omap_boot_parameters structure becomes platform-specific, since its definition differs a bit across omap platforms. The offsets are removed as well since it is U-Boot's coding style to use structures for mapping such kind of data (in the sense that it is similar to registers). It is correct to assume that romcode structure encoding is the same as U-Boot, given the description of these structures in the TRMs. The original address provided by the bootrom is passed to the U-Boot binary instead of a duplicate of the structure stored in global data. This allows to have only the relevant (boot device and mode) information stored in global data. It is also expected that the address where the bootrom stores that information is not overridden by the U-Boot SPL or U-Boot. The save_omap_boot_params is expected to handle all special cases where the data provided by the bootrom cannot be used as-is, so that spl_boot_device and spl_boot_mode only return the data from global data. All of this is only relevant when the U-Boot SPL is used. In cases it is not, save_boot_params should fallback to its weak (or board-specific) definition. save_omap_boot_params should not be called in that context either. Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/arch-am33xx/omap.h11
-rw-r--r--arch/arm/include/asm/arch-am33xx/sys_proto.h1
-rw-r--r--arch/arm/include/asm/arch-omap3/omap.h13
-rw-r--r--arch/arm/include/asm/arch-omap3/sys_proto.h2
-rw-r--r--arch/arm/include/asm/arch-omap4/omap.h11
-rw-r--r--arch/arm/include/asm/arch-omap5/omap.h12
-rw-r--r--arch/arm/include/asm/global_data.h10
-rw-r--r--arch/arm/include/asm/omap_boot.h34
-rw-r--r--arch/arm/include/asm/omap_common.h9
-rw-r--r--arch/arm/include/asm/ti-common/sys_proto.h2
10 files changed, 63 insertions, 42 deletions
diff --git a/arch/arm/include/asm/arch-am33xx/omap.h b/arch/arm/include/asm/arch-am33xx/omap.h
index e5c0b0d08f..47962dadf5 100644
--- a/arch/arm/include/asm/arch-am33xx/omap.h
+++ b/arch/arm/include/asm/arch-am33xx/omap.h
@@ -33,4 +33,15 @@
#define AM4372_BOARD_VERSION_END SRAM_SCRATCH_SPACE_ADDR + 0x14
#define QSPI_BASE 0x47900000
#endif
+
+/* Boot parameters */
+#ifndef __ASSEMBLY__
+struct omap_boot_parameters {
+ unsigned int reserved;
+ unsigned int boot_device_descriptor;
+ unsigned char boot_device;
+ unsigned char reset_reason;
+};
+#endif
+
#endif
diff --git a/arch/arm/include/asm/arch-am33xx/sys_proto.h b/arch/arm/include/asm/arch-am33xx/sys_proto.h
index 7eacf27a93..91b614ad20 100644
--- a/arch/arm/include/asm/arch-am33xx/sys_proto.h
+++ b/arch/arm/include/asm/arch-am33xx/sys_proto.h
@@ -11,7 +11,6 @@
#ifndef _SYS_PROTO_H_
#define _SYS_PROTO_H_
#include <linux/mtd/omap_gpmc.h>
-#include <asm/ti-common/sys_proto.h>
#include <asm/arch/cpu.h>
u32 get_cpu_rev(void);
diff --git a/arch/arm/include/asm/arch-omap3/omap.h b/arch/arm/include/asm/arch-omap3/omap.h
index 194b93bf56..537d13b263 100644
--- a/arch/arm/include/asm/arch-omap3/omap.h
+++ b/arch/arm/include/asm/arch-omap3/omap.h
@@ -142,6 +142,7 @@ struct gpio {
#define NON_SECURE_SRAM_START 0x40208000 /* Works for GP & EMU */
#define NON_SECURE_SRAM_END 0x40210000
+#define SRAM_SCRATCH_SPACE_ADDR 0x4020E000
#define LOW_LEVEL_SRAM_STACK 0x4020FFFC
@@ -245,4 +246,16 @@ struct gpio {
/* ABB tranxdone mask */
#define OMAP_ABB_MPU_TXDONE_MASK (0x1 << 26)
+/* Boot parameters */
+#ifndef __ASSEMBLY__
+struct omap_boot_parameters {
+ unsigned int boot_message;
+ unsigned char boot_device;
+ unsigned char reserved;
+ unsigned char reset_reason;
+ unsigned char ch_flags;
+ unsigned int boot_device_descriptor;
+};
+#endif
+
#endif
diff --git a/arch/arm/include/asm/arch-omap3/sys_proto.h b/arch/arm/include/asm/arch-omap3/sys_proto.h
index 3e45ce184b..cfa4d58aca 100644
--- a/arch/arm/include/asm/arch-omap3/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap3/sys_proto.h
@@ -75,4 +75,6 @@ void get_dieid(u32 *id);
void do_omap3_emu_romcode_call(u32 service_id, u32 parameters);
void omap3_set_aux_cr_secure(u32 acr);
u32 warm_reset(void);
+
+void save_omap_boot_params(void);
#endif
diff --git a/arch/arm/include/asm/arch-omap4/omap.h b/arch/arm/include/asm/arch-omap4/omap.h
index d43dc265cd..12b1a09446 100644
--- a/arch/arm/include/asm/arch-omap4/omap.h
+++ b/arch/arm/include/asm/arch-omap4/omap.h
@@ -124,4 +124,15 @@ struct s32ktimer {
/* ABB tranxdone mask */
#define OMAP_ABB_MPU_TXDONE_MASK (0x1 << 7)
+/* Boot parameters */
+#ifndef __ASSEMBLY__
+struct omap_boot_parameters {
+ unsigned int boot_message;
+ unsigned int boot_device_descriptor;
+ unsigned char boot_device;
+ unsigned char reset_reason;
+ unsigned char ch_flags;
+};
+#endif
+
#endif
diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h
index 68c6d6dc0a..524fae4bb9 100644
--- a/arch/arm/include/asm/arch-omap5/omap.h
+++ b/arch/arm/include/asm/arch-omap5/omap.h
@@ -235,4 +235,16 @@ struct ctrl_ioregs {
};
#endif /* __ASSEMBLY__ */
+
+/* Boot parameters */
+#ifndef __ASSEMBLY__
+struct omap_boot_parameters {
+ unsigned int boot_message;
+ unsigned int boot_device_descriptor;
+ unsigned char boot_device;
+ unsigned char reset_reason;
+ unsigned char ch_flags;
+};
+#endif
+
#endif
diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h
index bb24f33d0d..4e3ea55e29 100644
--- a/arch/arm/include/asm/global_data.h
+++ b/arch/arm/include/asm/global_data.h
@@ -8,10 +8,6 @@
#ifndef __ASM_GBL_DATA_H
#define __ASM_GBL_DATA_H
-#ifdef CONFIG_OMAP
-#include <asm/omap_boot.h>
-#endif
-
/* Architecture-specific global data */
struct arch_global_data {
#if defined(CONFIG_FSL_ESDHC)
@@ -45,8 +41,10 @@ struct arch_global_data {
unsigned long tlb_size;
#endif
-#ifdef CONFIG_OMAP
- struct omap_boot_parameters omap_boot_params;
+#ifdef CONFIG_OMAP_COMMON
+ u32 omap_boot_device;
+ u32 omap_boot_mode;
+ u8 omap_ch_flags;
#endif
#ifdef CONFIG_FSL_LSCH3
unsigned long mem2_clk;
diff --git a/arch/arm/include/asm/omap_boot.h b/arch/arm/include/asm/omap_boot.h
deleted file mode 100644
index f77f9d6b77..0000000000
--- a/arch/arm/include/asm/omap_boot.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * (C) Copyright 2013
- * Texas Instruments, <www.ti.com>
- *
- * Sricharan R <r.sricharan@ti.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/* ROM code defines */
-/* Boot device */
-#define BOOT_DEVICE_MASK 0xFF
-#define BOOT_DEVICE_OFFSET 0x8
-#define DEV_DESC_PTR_OFFSET 0x4
-#define DEV_DATA_PTR_OFFSET 0x18
-#define BOOT_MODE_OFFSET 0x8
-#define RESET_REASON_OFFSET 0x9
-#define CH_FLAGS_OFFSET 0xA
-
-#define CH_FLAGS_CHSETTINGS (0x1 << 0)
-#define CH_FLAGS_CHRAM (0x1 << 1)
-#define CH_FLAGS_CHFLASH (0x1 << 2)
-#define CH_FLAGS_CHMMCSD (0x1 << 3)
-
-#ifndef __ASSEMBLY__
-struct omap_boot_parameters {
- char *boot_message;
- unsigned int mem_boot_descriptor;
- unsigned char omap_bootdevice;
- unsigned char reset_reason;
- unsigned char ch_flags;
- unsigned long omap_bootmode;
-};
-#endif
diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index 5469435cc7..084ea68acc 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -688,4 +688,13 @@ static inline u8 is_dra72x(void)
#define OMAP_SRAM_SCRATCH_BOOT_PARAMS (SRAM_SCRATCH_SPACE_ADDR + 0x24)
#define OMAP5_SRAM_SCRATCH_SPACE_END (SRAM_SCRATCH_SPACE_ADDR + 0x28)
+/* Boot parameters */
+#define DEVICE_DATA_OFFSET 0x18
+#define BOOT_MODE_OFFSET 0x8
+
+#define CH_FLAGS_CHSETTINGS (1 << 0)
+#define CH_FLAGS_CHRAM (1 << 1)
+#define CH_FLAGS_CHFLASH (1 << 2)
+#define CH_FLAGS_CHMMCSD (1 << 3)
+
#endif /* _OMAP_COMMON_H_ */
diff --git a/arch/arm/include/asm/ti-common/sys_proto.h b/arch/arm/include/asm/ti-common/sys_proto.h
index d3ab75fa32..2bdb71cfe8 100644
--- a/arch/arm/include/asm/ti-common/sys_proto.h
+++ b/arch/arm/include/asm/ti-common/sys_proto.h
@@ -36,7 +36,7 @@ static inline u8 uboot_loaded_by_spl(void)
* variable by both SPL and u-boot.Check out for CHSETTINGS, which is a
* mandatory section if CH is present.
*/
- if ((gd->arch.omap_boot_params.ch_flags) & (CH_FLAGS_CHSETTINGS))
+ if (gd->arch.omap_ch_flags & CH_FLAGS_CHSETTINGS)
return 0;
else
return running_from_sdram();