armv7: nuke global_data.h and remove some references to gd struct

This begins to remove references to global data which u-boot used.
There are still many commented out references to gd-> and bd-> which
we'll fix once we're happy with the replacements.

Change-Id: Ie1b40a997e28a118f8f3ad96a2f9a2462d32fbe3
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2210
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/arch/armv7/include/common.h

@@ -83,7 +83,6 @@ void __assert_fail(const char *assertion, const char *file, unsigned line,
 typedef void (interrupt_handler_t)(void *);
 
 //#include <asm/u-boot.h> /* boot information for Linux kernel */
-#include <global_data.h>	/* global data used for startup functions */
 
 /*
  * Return the time since boot in microseconds, This is needed for bootstage
@@ -152,7 +151,6 @@ void	reset_cmd_timeout(void);
 
 /* arch/$(ARCH)/lib/board.c */
 void	board_init_f  (void);
-void	board_init_r  (gd_t *, ulong) __attribute__ ((noreturn));
 int	checkboard    (void);
 int	checkflash    (void);
 int	checkdram     (void);
@@ -247,7 +245,6 @@ int	dcache_status (void);
 void	dcache_enable (void);
 void	dcache_disable(void);
 void	mmu_disable(void);
-void	relocate_code (ulong, gd_t *, ulong) __attribute__ ((noreturn));
 ulong	get_endaddr   (void);
 void	trap_init     (ulong);
 #if defined (CONFIG_4xx)	|| \

src/arch/armv7/include/global_data.h

@@ -1,108 +0,0 @@
-/*
- * (C) Copyright 2002-2010
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * 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_GBL_DATA_H
-#define __ASM_GBL_DATA_H
-
-/*
- * The following data structure is placed in some memory which is
- * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
- * some locked parts of the data cache) to allow for a minimum set of
- * global variables during system initialization (until we have set
- * up the memory controller so that we can use RAM).
- *
- * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
- */
-
-typedef	struct	global_data {
-//	bd_t		*bd;
-	unsigned long	flags;
-	unsigned long	baudrate;
-	unsigned long	have_console;	/* serial_init() was called */
-#ifdef CONFIG_PRE_CONSOLE_BUFFER
-	unsigned long	precon_buf_idx;	/* Pre-Console buffer index */
-#endif
-	unsigned long	env_addr;	/* Address  of Environment struct */
-	unsigned long	env_valid;	/* Checksum of Environment valid? */
-	unsigned long	fb_base;	/* base address of frame buffer */
-#ifdef CONFIG_FSL_ESDHC
-	unsigned long	sdhc_clk;
-#endif
-#ifdef CONFIG_AT91FAMILY
-	/* "static data" needed by at91's clock.c */
-	unsigned long	cpu_clk_rate_hz;
-	unsigned long	main_clk_rate_hz;
-	unsigned long	mck_rate_hz;
-	unsigned long	plla_rate_hz;
-	unsigned long	pllb_rate_hz;
-	unsigned long	at91_pllb_usb_init;
-#endif
-#ifdef CONFIG_ARM
-	/* "static data" needed by most of timer.c on ARM platforms */
-	unsigned long	timer_rate_hz;
-	unsigned long	tbl;
-	unsigned long	tbu;
-	unsigned long long	timer_reset_value;
-	unsigned long	lastinc;
-#endif
-#ifdef CONFIG_IXP425
-	unsigned long	timestamp;
-#endif
-	unsigned long	relocaddr;	/* Start address of U-Boot in RAM */
-	unsigned long long ram_size;	/* RAM size */
-	unsigned long	mon_len;	/* monitor len */
-	unsigned long	irq_sp;		/* irq stack pointer */
-	unsigned long	start_addr_sp;	/* start_addr_stackpointer */
-	unsigned long	reloc_off;
-#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
-	unsigned long	tlb_addr;
-	unsigned long	tlb_size;
-#endif
-	const void	*fdt_blob;	/* Our device tree, NULL if none */
-#ifdef CONFIG_SYS_SKIP_ARM_RELOCATION
-	ulong		malloc_end;	/* End of malloc region (addr + 1) */
-#endif
-	void		**jt;		/* jump table */
-	char		env_buf[32];	/* buffer for getenv() before reloc. */
-#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
-	unsigned long	post_log_word; /* Record POST activities */
-	unsigned long	post_log_res; /* success of POST test */
-	unsigned long	post_init_f_time; /* When post_init_f started */
-#endif
-} gd_t;
-
-/*
- * Global Data Flags
- */
-#define	GD_FLG_RELOC		0x00001	/* Code was relocated to RAM		*/
-#define	GD_FLG_DEVINIT		0x00002	/* Devices have been initialized	*/
-#define	GD_FLG_SILENT		0x00004	/* Silent mode				*/
-#define	GD_FLG_POSTFAIL		0x00008	/* Critical POST test failed		*/
-#define	GD_FLG_POSTSTOP		0x00010	/* POST seqeunce aborted		*/
-#define	GD_FLG_LOGINIT		0x00020	/* Log Buffer has been initialized	*/
-#define GD_FLG_DISABLE_CONSOLE	0x00040	/* Disable console (in & out)		*/
-#define GD_FLG_ENV_READY	0x00080	/* Environment imported into hash table	*/
-
-#define DECLARE_GLOBAL_DATA_PTR     register volatile gd_t *gd asm ("r8")
-
-#endif /* __ASM_GBL_DATA_H */

src/arch/armv7/lib/cache-cp15.c

@@ -24,9 +24,8 @@
 #include <common.h>
 #include <stdlib.h>
 #include <system.h>
-#include <global_data.h>
 
-DECLARE_GLOBAL_DATA_PTR;
+static unsigned int tlb_addr;
 
 static void cp_delay (void)
 {
@@ -41,9 +40,7 @@ static void cp_delay (void)
 static void set_section_dcache(int section, enum dcache_option option)
 {
 	u32 value = section << MMU_SECTION_SHIFT | (3 << 10);
-//	u32 *page_table = (u32 *)gd->tlb_addr;
 	u32 *page_table;
-	unsigned int tlb_addr;
 	unsigned int tlb_size = 4096 * 4;
 
 	/*
@@ -82,7 +79,7 @@ void __mmu_page_table_flush(unsigned long start, unsigned long stop)
 
 void mmu_set_region_dcache(unsigned long start, int size, enum dcache_option option)
 {
-	u32 *page_table = (u32 *)gd->tlb_addr;
+	u32 *page_table = &tlb_addr;
 	u32 upto, end;
 
 	end = ALIGN(start + size, MMU_SECTION_SIZE) >> MMU_SECTION_SHIFT;
@@ -113,8 +110,6 @@ static inline void dram_bank_mmu_setup(int bank)
 }
 #endif
 
-/* FIXME(dhendrix): modified to take arguments from the caller (mainboard's
-   romstage.c) so it doesn't rely on global data struct */
 /**
  * dram_bank_mmu_set - set up the data cache policy for a given dram bank
  *
@@ -163,7 +158,7 @@ static inline void mmu_setup(void)
 
 	/* Copy the page table address to cp15 */
 	asm volatile("mcr p15, 0, %0, c2, c0, 0"
-		     : : "r" (gd->tlb_addr) : "memory");
+		     : : "r" (tlb_addr) : "memory");
 	/* Set the access control to all-supervisor */
 	asm volatile("mcr p15, 0, %0, c3, c0, 0"
 		     : : "r" (~0));

src/cpu/samsung/exynos5-common/spl_boot.c

@@ -55,9 +55,6 @@
 
 #include <arch/io.h>
 
-/* FIXME(dhendrix): clean out u-boot global data stuff */
-//DECLARE_GLOBAL_DATA_PTR;
-
 #define OM_STAT		(0x1f << 1)
 
 /**
@@ -344,15 +341,6 @@ void board_init_f(void)
 	hlt();
 }
 
-/* Place Holders */
-void board_init_r(gd_t *id, ulong dest_addr)
-{
-	/* Function attribute is no-return */
-	/* This Function never executes */
-	while (1)
-		;
-}
-
 //void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3) {}
 
 #if 0