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sc520: Create arch asm-offsets 

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
This commit is contained in:
Graeme Russ 2011-11-08 02:33:18 +00:00
parent facc9e7bf4
commit 311b1a2b38
6 changed files with 52 additions and 49 deletions
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45
arch/x86/cpu/sc520/asm-offsets.c Normal file
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@ -0,0 +1,45 @@
/*
* Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c
*
* This program is used to generate definitions needed by
* assembly language modules.
*
* We use the technique used in the OSF Mach kernel code:
* generate asm statements containing #defines,
* compile this file to assembler, and then extract the
* #defines from the assembly-language output.
*
* 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.
*/
#include <common.h>
#include <asm/arch/sc520.h>
#include <linux/kbuild.h>
int main(void)
{
DEFINE(GENERATED_GD_RELOC_OFF, offsetof(gd_t, reloc_off));
DEFINE(GENERATED_SC520_PAR0, offsetof(struct sc520_mmcr, par[0]));
DEFINE(GENERATED_SC520_PAR1, offsetof(struct sc520_mmcr, par[1]));
DEFINE(GENERATED_SC520_PAR2, offsetof(struct sc520_mmcr, par[2]));
DEFINE(GENERATED_SC520_PAR3, offsetof(struct sc520_mmcr, par[3]));
DEFINE(GENERATED_SC520_PAR4, offsetof(struct sc520_mmcr, par[4]));
DEFINE(GENERATED_SC520_PAR5, offsetof(struct sc520_mmcr, par[5]));
DEFINE(GENERATED_SC520_PAR6, offsetof(struct sc520_mmcr, par[6]));
DEFINE(GENERATED_SC520_PAR7, offsetof(struct sc520_mmcr, par[7]));
DEFINE(GENERATED_SC520_PAR8, offsetof(struct sc520_mmcr, par[8]));
DEFINE(GENERATED_SC520_PAR9, offsetof(struct sc520_mmcr, par[9]));
DEFINE(GENERATED_SC520_PAR10, offsetof(struct sc520_mmcr, par[10]));
DEFINE(GENERATED_SC520_PAR11, offsetof(struct sc520_mmcr, par[11]));
DEFINE(GENERATED_SC520_PAR12, offsetof(struct sc520_mmcr, par[12]));
DEFINE(GENERATED_SC520_PAR13, offsetof(struct sc520_mmcr, par[13]));
DEFINE(GENERATED_SC520_PAR14, offsetof(struct sc520_mmcr, par[14]));
DEFINE(GENERATED_SC520_PAR15, offsetof(struct sc520_mmcr, par[15]));
return 0;
}

3
arch/x86/cpu/sc520/sc520_car.S
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@ -24,6 +24,7 @@
#include <config.h>
#include <asm/processor-flags.h>
#include <asm/arch/sc520.h>
#include <generated/asm-offsets.h>
.section .text
@ -55,7 +56,7 @@ car_init:
/* Configure Cache-As-RAM PAR */
movl $CONFIG_SYS_SC520_CAR_PAR, %eax
movl $SC520_PAR2, %edi
movl $(SC520_MMCR_BASE + GENERATED_SC520_PAR2), %edi
movl %eax, (%edi)
/* Trash the cache then turn it on */

3
arch/x86/cpu/start.S
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@ -30,6 +30,7 @@
#include <version.h>
#include <asm/global_data.h>
#include <asm/processor-flags.h>
#include <generated/asm-offsets.h>
.section .text
.code32
@ -112,7 +113,7 @@ relocate_code:
/* Setup call address of in-RAM copy of board_init_r() */
movl $board_init_r, %ebp
addl (GD_RELOC_OFF * 4)(%edx), %ebp
addl (GENERATED_GD_RELOC_OFF)(%edx), %ebp
/* Setup parameters to board_init_r() */
movl %edx, %eax

26
arch/x86/include/asm/arch-sc520/sc520.h
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@ -259,32 +259,6 @@ extern sc520_mmcr_t *sc520_mmcr;
/* Memory Mapped Control Registers (MMCR) Base Address */
#define SC520_MMCR_BASE 0xfffef000
/* MMCR Addresses (required for assembler code) */
#define SC520_DRCCTL (SC520_MMCR_BASE + 0x010)
#define SC520_DRCTMCTL (SC520_MMCR_BASE + 0x012)
#define SC520_DRCCFG (SC520_MMCR_BASE + 0x014)
#define SC520_DRCBENDADR (SC520_MMCR_BASE + 0x018)
#define SC520_ECCCTL (SC520_MMCR_BASE + 0x020)
#define SC520_DBCTL (SC520_MMCR_BASE + 0x040)
#define SC520_ECCINT (SC520_MMCR_BASE + 0xd18)
#define SC520_PAR0 (SC520_MMCR_BASE + 0x088)
#define SC520_PAR1 (SC520_PAR0 + (0x04 * 1))
#define SC520_PAR2 (SC520_PAR0 + (0x04 * 2))
#define SC520_PAR3 (SC520_PAR0 + (0x04 * 3))
#define SC520_PAR4 (SC520_PAR0 + (0x04 * 4))
#define SC520_PAR5 (SC520_PAR0 + (0x04 * 5))
#define SC520_PAR6 (SC520_PAR0 + (0x04 * 6))
#define SC520_PAR7 (SC520_PAR0 + (0x04 * 7))
#define SC520_PAR8 (SC520_PAR0 + (0x04 * 8))
#define SC520_PAR9 (SC520_PAR0 + (0x04 * 9))
#define SC520_PAR10 (SC520_PAR0 + (0x04 * 10))
#define SC520_PAR11 (SC520_PAR0 + (0x04 * 11))
#define SC520_PAR12 (SC520_PAR0 + (0x04 * 12))
#define SC520_PAR13 (SC520_PAR0 + (0x04 * 13))
#define SC520_PAR14 (SC520_PAR0 + (0x04 * 14))
#define SC520_PAR15 (SC520_PAR0 + (0x04 * 15))
/*
* PARs for maximum allowable 256MB of SDRAM @ 0x00000000
* Two PARs are required due to maximum PAR size of 128MB

19
arch/x86/include/asm/global_data.h
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@ -61,25 +61,6 @@ extern gd_t *gd;
#endif
/* Word Offsets into Global Data - MUST match struct gd_t */
#define GD_BD 0
#define GD_FLAGS 1
#define GD_BAUDRATE 2
#define GD_HAVE_CONSOLE 3
#define GD_RELOC_OFF 4
#define GD_LOAD_OFF 5
#define GD_ENV_ADDR 6
#define GD_ENV_VALID 7
#define GD_CPU_CLK 8
#define GD_BUS_CLK 9
#define GD_RELOC_ADDR 10
#define GD_START_ADDR_SP 11
#define GD_RAM_SIZE 12
#define GD_RESET_STATUS 13
#define GD_JT 14
#define GD_SIZE 15
/*
* Global Data Flags
*/

5
board/eNET/eNET_start16.S
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@ -30,6 +30,7 @@
#include "config.h"
#include "hardware.h"
#include <asm/arch/sc520.h>
#include <generated/asm-offsets.h>
.text
.section .start16, "ax"
@ -46,12 +47,12 @@ board_init16:
movw %ax, %ds
/* Map PAR for Boot Flash (BOOTCS, 512kB @ 0x380000000) */
movl $(SC520_PAR14 - SC520_MMCR_BASE), %edi
movl $GENERATED_SC520_PAR14, %edi
movl $CONFIG_SYS_SC520_BOOTCS_PAR, %eax
movl %eax, (%di)
/* Map PAR for LED, Hex Switches (GPCS6, 20 Bytes @ 0x1000) */
movl $(SC520_PAR15 - SC520_MMCR_BASE), %edi
movl $GENERATED_SC520_PAR15, %edi
movl $CONFIG_SYS_SC520_LLIO_PAR, %eax
movl %eax, (%di)