armv7:TI: Add <asm/ti-common/sys_proto.h> and migrate omap_hw_init_context

The omap_hw_init_context function (and assorted helpers) is the same for
all OMAP-derived parts as when CHSETTINGS are used, that's the same and
our DDR base is also always the same.  In order to make this common we
simply need to update the names of the define for DDR address space
which is also common.

Cc: Sricharan R. <r.sricharan@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>

diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
index 8ebc0ce251632cff1b2564130496d7cb34970982..132454c7b4149354687f77002fe0c2f24ff1adff 100644 (file)
--- a/arch/arm/cpu/armv7/omap-common/hwinit-common.c
+++ b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
@@ -194,8 +194,8 @@ u32 omap_sdram_size(void)
                addr = section & EMIF_SYS_ADDR_MASK;
 
                /* See if the address is valid */
-               if ((addr >= DRAM_ADDR_SPACE_START) &&
-                   (addr < DRAM_ADDR_SPACE_END)) {
+               if ((addr >= TI_ARMV7_DRAM_ADDR_SPACE_START) &&
+                   (addr < TI_ARMV7_DRAM_ADDR_SPACE_END)) {
                        size = ((section & EMIF_SYS_SIZE_MASK) >>
                                   EMIF_SYS_SIZE_SHIFT);
                        size = 1 << size;

diff --git a/arch/arm/include/asm/arch-am33xx/sys_proto.h b/arch/arm/include/asm/arch-am33xx/sys_proto.h
index 91ff2ad0e4cd49b3f86df6ba2be439e92387beb6..33a82fca98db67e3c89a5dba552b92d22dd89111 100644 (file)
--- a/arch/arm/include/asm/arch-am33xx/sys_proto.h
+++ b/arch/arm/include/asm/arch-am33xx/sys_proto.h
@@ -11,6 +11,7 @@
 #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>
 
 #define BOARD_REV_ID   0x0

diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h
index 80172f37945e32a10d02c24d3b8324a14e2aaad4..83d858f305c4b5dde57e13aee77cae7252aab786 100644 (file)
--- a/arch/arm/include/asm/arch-omap4/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap4/sys_proto.h
@@ -14,6 +14,7 @@
 #include <asm/omap_common.h>
 #include <linux/mtd/omap_gpmc.h>
 #include <asm/arch/mux_omap4.h>
+#include <asm/ti-common/sys_proto.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -53,54 +54,4 @@ int omap_vc_bypass_send_value(u8 sa, u8 reg_addr, u8 reg_data);
 u32 warm_reset(void);
 void force_emif_self_refresh(void);
 void setup_warmreset_time(void);
-
-static inline u32 running_from_sdram(void)
-{
-       u32 pc;
-       asm volatile ("mov %0, pc" : "=r" (pc));
-       return ((pc >= OMAP44XX_DRAM_ADDR_SPACE_START) &&
-           (pc < OMAP44XX_DRAM_ADDR_SPACE_END));
-}
-
-static inline u8 uboot_loaded_by_spl(void)
-{
-       /*
-        * u-boot can be running from sdram either because of configuration
-        * Header or by SPL. If because of CH, then the romcode sets the
-        * CHSETTINGS executed bit to true in the boot parameter structure that
-        * it passes to the bootloader.This parameter is stored in the ch_flags
-        * 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))
-               return 0;
-       else
-               return running_from_sdram();
-}
-/*
- * The basic hardware init of OMAP(s_init()) can happen in 4
- * different contexts:
- *  1. SPL running from SRAM
- *  2. U-Boot running from FLASH
- *  3. Non-XIP U-Boot loaded to SDRAM by SPL
- *  4. Non-XIP U-Boot loaded to SDRAM by ROM code using the
- *     Configuration Header feature
- *
- * This function finds this context.
- * Defining as inline may help in compiling out unused functions in SPL
- */
-static inline u32 omap_hw_init_context(void)
-{
-#ifdef CONFIG_SPL_BUILD
-       return OMAP_INIT_CONTEXT_SPL;
-#else
-       if (uboot_loaded_by_spl())
-               return OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL;
-       else if (running_from_sdram())
-               return OMAP_INIT_CONTEXT_UBOOT_AFTER_CH;
-       else
-               return OMAP_INIT_CONTEXT_UBOOT_FROM_NOR;
-#endif
-}
-
 #endif

diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h
index ce13ca93bb57b2428f5540f5cf49afcd1f60e960..b9600cf42dbc5a03c384b5271e77b301cb3f2618 100644 (file)
--- a/arch/arm/include/asm/arch-omap5/omap.h
+++ b/arch/arm/include/asm/arch-omap5/omap.h
@@ -23,11 +23,6 @@
 #define OMAP54XX_L4_WKUP_BASE  0x4Ae00000
 #define OMAP54XX_L4_PER_BASE   0x48000000
 
-#define OMAP54XX_DRAM_ADDR_SPACE_START 0x80000000
-#define OMAP54XX_DRAM_ADDR_SPACE_END   0xFFFFFFFF
-#define DRAM_ADDR_SPACE_START  OMAP54XX_DRAM_ADDR_SPACE_START
-#define DRAM_ADDR_SPACE_END    OMAP54XX_DRAM_ADDR_SPACE_END
-
 /* CONTROL ID CODE */
 #define CONTROL_CORE_ID_CODE   0x4A002204
 #define CONTROL_WKUP_ID_CODE   0x4AE0C204

diff --git a/arch/arm/include/asm/arch-omap5/sys_proto.h b/arch/arm/include/asm/arch-omap5/sys_proto.h
index bf12c7337247e9e969a826d1c1da34fd27f99e64..103830319a414d31f10a7d8ad05571111650ae9d 100644 (file)
--- a/arch/arm/include/asm/arch-omap5/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap5/sys_proto.h
@@ -14,6 +14,7 @@
 #include <asm/omap_common.h>
 #include <linux/mtd/omap_gpmc.h>
 #include <asm/arch/clock.h>
+#include <asm/ti-common/sys_proto.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -56,55 +57,6 @@ void get_ioregs(const struct ctrl_ioregs **regs);
 void srcomp_enable(void);
 void setup_warmreset_time(void);
 
-static inline u32 running_from_sdram(void)
-{
-       u32 pc;
-       asm volatile ("mov %0, pc" : "=r" (pc));
-       return ((pc >= OMAP54XX_DRAM_ADDR_SPACE_START) &&
-           (pc < OMAP54XX_DRAM_ADDR_SPACE_END));
-}
-
-static inline u8 uboot_loaded_by_spl(void)
-{
-       /*
-        * u-boot can be running from sdram either because of configuration
-        * Header or by SPL. If because of CH, then the romcode sets the
-        * CHSETTINGS executed bit to true in the boot parameter structure that
-        * it passes to the bootloader.This parameter is stored in the ch_flags
-        * 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))
-               return 0;
-       else
-               return running_from_sdram();
-}
-/*
- * The basic hardware init of OMAP(s_init()) can happen in 4
- * different contexts:
- *  1. SPL running from SRAM
- *  2. U-Boot running from FLASH
- *  3. Non-XIP U-Boot loaded to SDRAM by SPL
- *  4. Non-XIP U-Boot loaded to SDRAM by ROM code using the
- *     Configuration Header feature
- *
- * This function finds this context.
- * Defining as inline may help in compiling out unused functions in SPL
- */
-static inline u32 omap_hw_init_context(void)
-{
-#ifdef CONFIG_SPL_BUILD
-       return OMAP_INIT_CONTEXT_SPL;
-#else
-       if (uboot_loaded_by_spl())
-               return OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL;
-       else if (running_from_sdram())
-               return OMAP_INIT_CONTEXT_UBOOT_AFTER_CH;
-       else
-               return OMAP_INIT_CONTEXT_UBOOT_FROM_NOR;
-#endif
-}
-
 static inline u32 div_round_up(u32 num, u32 den)
 {
        return (num + den - 1)/den;

diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index d1dd4b53682088bea9fe6a4a911d02d9acea61af..d1344ee94c337847434556b83260704a811730f5 100644 (file)
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -576,12 +576,6 @@ s8 abb_setup_ldovbb(u32 fuse, u32 ldovbb);
 
 void usb_fake_mac_from_die_id(u32 *id);
 
-/* HW Init Context */
-#define OMAP_INIT_CONTEXT_SPL                  0
-#define OMAP_INIT_CONTEXT_UBOOT_FROM_NOR       1
-#define OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL      2
-#define OMAP_INIT_CONTEXT_UBOOT_AFTER_CH       3
-
 /* ABB */
 #define OMAP_ABB_NOMINAL_OPP           0
 #define OMAP_ABB_FAST_OPP              1

diff --git a/arch/arm/include/asm/ti-common/sys_proto.h b/arch/arm/include/asm/ti-common/sys_proto.h
new file mode 100644 (file)
index 0000000..d3ab75f
--- /dev/null
+++ b/arch/arm/include/asm/ti-common/sys_proto.h
@@ -0,0 +1,72 @@
+/*
+ * (C) Copyright 2014
+ * Texas Instruments, <www.ti.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+#ifndef _TI_COMMON_SYS_PROTO_H_
+#define _TI_COMMON_SYS_PROTO_H_
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_OMAP_COMMON
+#define TI_ARMV7_DRAM_ADDR_SPACE_START 0x80000000
+#define TI_ARMV7_DRAM_ADDR_SPACE_END   0xFFFFFFFF
+
+#define OMAP_INIT_CONTEXT_SPL                  0
+#define OMAP_INIT_CONTEXT_UBOOT_FROM_NOR       1
+#define OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL      2
+#define OMAP_INIT_CONTEXT_UBOOT_AFTER_CH       3
+
+static inline u32 running_from_sdram(void)
+{
+       u32 pc;
+       asm volatile ("mov %0, pc" : "=r" (pc));
+       return ((pc >= TI_ARMV7_DRAM_ADDR_SPACE_START) &&
+           (pc < TI_ARMV7_DRAM_ADDR_SPACE_END));
+}
+
+static inline u8 uboot_loaded_by_spl(void)
+{
+       /*
+        * u-boot can be running from sdram either because of configuration
+        * Header or by SPL. If because of CH, then the romcode sets the
+        * CHSETTINGS executed bit to true in the boot parameter structure that
+        * it passes to the bootloader.This parameter is stored in the ch_flags
+        * 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))
+               return 0;
+       else
+               return running_from_sdram();
+}
+
+/*
+ * The basic hardware init of OMAP(s_init()) can happen in 4
+ * different contexts:
+ *  1. SPL running from SRAM
+ *  2. U-Boot running from FLASH
+ *  3. Non-XIP U-Boot loaded to SDRAM by SPL
+ *  4. Non-XIP U-Boot loaded to SDRAM by ROM code using the
+ *     Configuration Header feature
+ *
+ * This function finds this context.
+ * Defining as inline may help in compiling out unused functions in SPL
+ */
+static inline u32 omap_hw_init_context(void)
+{
+#ifdef CONFIG_SPL_BUILD
+       return OMAP_INIT_CONTEXT_SPL;
+#else
+       if (uboot_loaded_by_spl())
+               return OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL;
+       else if (running_from_sdram())
+               return OMAP_INIT_CONTEXT_UBOOT_AFTER_CH;
+       else
+               return OMAP_INIT_CONTEXT_UBOOT_FROM_NOR;
+#endif
+}
+#endif
+
+#endif