omap_rev_string: output to stdout

* avoid potential buffer overflows
* allow SPL-build not to output "Texas Instruments Revision detection unimplemented"

Signed-off-by: Andreas Müller <schnitzeltony@gmx.de>
Signed-off-by: Tom Rini <trini@ti.com>

arch/arm/cpu/armv7/omap-common/hwinit-common.c

@@ -76,14 +76,14 @@ u32 cortex_rev(void)
 	return rev;
 }
 
-void omap_rev_string(char *omap_rev_string)
+void omap_rev_string(void)
 {
 	u32 omap_rev = omap_revision();
 	u32 omap_variant = (omap_rev & 0xFFFF0000) >> 16;
 	u32 major_rev = (omap_rev & 0x00000F00) >> 8;
 	u32 minor_rev = (omap_rev & 0x000000F0) >> 4;
 
-	sprintf(omap_rev_string, "OMAP%x ES%x.%x", omap_variant, major_rev,
+	printf("OMAP%x ES%x.%x\n", omap_variant, major_rev,
 		minor_rev);
 }
 
@@ -223,10 +223,8 @@ u32 get_device_type(void)
  */
 int print_cpuinfo(void)
 {
-	char rev_string_buffer[50];
-
-	omap_rev_string(rev_string_buffer);
-	printf("CPU  : %s\n", rev_string_buffer);
+	puts("CPU  : ");
+	omap_rev_string();
 
 	return 0;
 }

arch/arm/cpu/armv7/omap-common/spl.c

@@ -35,6 +35,7 @@
 #include <i2c.h>
 #include <image.h>
 #include <malloc.h>
+#include <linux/compiler.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -154,7 +155,6 @@ void board_init_r(gd_t *id, ulong dummy)
 void preloader_console_init(void)
 {
 	const char *u_boot_rev = U_BOOT_VERSION;
-	char rev_string_buffer[50];
 
 	gd = &gdata;
 	gd->bd = &bdata;
@@ -170,14 +170,10 @@ void preloader_console_init(void)
 
 	printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE,
 		U_BOOT_TIME);
-	omap_rev_string(rev_string_buffer);
-	printf("Texas Instruments %s\n", rev_string_buffer);
+	omap_rev_string();
 }
 
-void __omap_rev_string(char *str)
+void __weak omap_rev_string()
 {
-	sprintf(str, "Revision detection unimplemented");
+	printf("Texas Instruments Revision detection unimplemented\n");
 }
-
-void omap_rev_string(char *str)
-	__attribute__((weak, alias("__omap_rev_string")));

arch/arm/include/asm/arch-omap4/sys_proto.h

@@ -42,7 +42,7 @@ void sr32(void *, u32, u32, u32);
 u32 wait_on_value(u32, u32, void *, u32);
 void sdelay(unsigned long);
 void set_pl310_ctrl_reg(u32 val);
-void omap_rev_string(char *omap_rev_string);
+void omap_rev_string(void);
 void setup_clocks_for_console(void);
 void prcm_init(void);
 void bypass_dpll(u32 *const base);

arch/arm/include/asm/arch-omap5/sys_proto.h

@@ -42,7 +42,7 @@ void set_muxconf_regs_non_essential(void);
 void sr32(void *, u32, u32, u32);
 u32 wait_on_value(u32, u32, void *, u32);
 void sdelay(unsigned long);
-void omap_rev_string(char *omap_rev_string);
+void omap_rev_string(void);
 void setup_clocks_for_console(void);
 void prcm_init(void);
 void bypass_dpll(u32 *const base);

arch/arm/include/asm/omap_common.h

@@ -91,7 +91,7 @@ u32 omap_boot_mode(void);
 
 /* SPL common function s*/
 void spl_parse_image_header(const struct image_header *header);
-void omap_rev_string(char *omap_rev_string);
+void omap_rev_string(void);
 
 /* NAND SPL functions */
 void spl_nand_load_image(void);