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MPC512x: factor out common code

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Now that we have 3 boards for the MPC512x it turns out that they all
use the very same fixed_sdram() code.

This patch factors out this common code into cpu/mpc512x/fixed_sdram.c
and adds a new header file, include/asm-ppc/mpc512x.h, with some
macros, inline functions and prototype definitions specific to MPC512x
systems.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
This commit is contained in:
Wolfgang Denk
2009-06-14 20:58:47 +02:00
parent 0549353a6b
commit 7629f1c06b
6 changed files with 191 additions and 335 deletions
Download Patch File Download Diff File Expand all files Collapse all files

124
board/davedenx/aria/aria.c
View File

@@ -27,6 +27,7 @@
#include <command.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/mpc512x.h>
#include <fdt_support.h>
#ifdef CONFIG_MISC_INIT_R
#include <i2c.h>
@@ -34,9 +35,6 @@
DECLARE_GLOBAL_DATA_PTR;
extern int mpc5121_diu_init(void);
extern void ide_set_reset(int idereset);
/* Clocks in use */
#define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN | \
CLOCK_SCCR1_LPC_EN | \
@@ -53,14 +51,9 @@ extern void ide_set_reset(int idereset);
CLOCK_SCCR2_DIU_EN | \
CLOCK_SCCR2_I2C_EN)
#define CSAW_START(start) ((start) & 0xFFFF0000)
#define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16)
long int fixed_sdram(void);
int board_early_init_f(void)
{
volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
u32 spridr;
/*
@@ -71,14 +64,7 @@ int board_early_init_f(void)
CSAW_STOP(CONFIG_SYS_ARIA_FPGA_BASE, CONFIG_SYS_ARIA_FPGA_SIZE)
);
out_be32(&im->lpc.cs_cfg[2], CONFIG_SYS_CS2_CFG);
/*
* According to MPC5121e RM, configuring local access windows should
* be followed by a dummy read of the config register that was
* modified last and an isync
*/
in_be32(&im->sysconf.lpcs2aw);
__asm__ __volatile__ ("isync");
sync_law(&im->sysconf.lpcs2aw);
/*
* Initialize Local Window for the On Board SRAM access
@@ -88,14 +74,7 @@ int board_early_init_f(void)
CSAW_STOP(CONFIG_SYS_ARIA_SRAM_BASE, CONFIG_SYS_ARIA_SRAM_SIZE)
);
out_be32(&im->lpc.cs_cfg[6], CONFIG_SYS_CS6_CFG);
/*
* According to MPC5121e RM, configuring local access windows should
* be followed by a dummy read of the config register that was
* modified last and an isync
*/
in_be32(&im->sysconf.lpcs6aw);
__asm__ __volatile__ ("isync");
sync_law(&im->sysconf.lpcs6aw);
/*
* Configure Flash Speed
@@ -124,100 +103,6 @@ phys_size_t initdram (int board_type)
return fixed_sdram();
}
/*
* fixed sdram init:
* The board doesn't use memory modules that have serial presence
* detect or similar mechanism for discovery of the DRAM settings
*/
long int fixed_sdram (void)
{
volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024;
u32 msize_log2 = __ilog2(msize);
u32 i;
/* Initialize IO Control */
out_be32(&im->io_ctrl.io_control_mem, IOCTRL_MUX_DDR);
/* Initialize DDR Local Window */
out_be32(&im->sysconf.ddrlaw.bar, CONFIG_SYS_DDR_BASE & 0xFFFFF000);
out_be32(&im->sysconf.ddrlaw.ar, msize_log2 - 1);
/*
* According to MPC5121e RM, configuring local access windows should
* be followed by a dummy read of the config register that was
* modified last and an isync
*/
in_be32(&im->sysconf.ddrlaw.ar);
__asm__ __volatile__ ("isync");
/* Enable DDR */
out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG_EN);
/* Initialize DDR Priority Manager */
out_be32(&im->mddrc.prioman_config1, CONFIG_SYS_MDDRCGRP_PM_CFG1);
out_be32(&im->mddrc.prioman_config2, CONFIG_SYS_MDDRCGRP_PM_CFG2);
out_be32(&im->mddrc.hiprio_config, CONFIG_SYS_MDDRCGRP_HIPRIO_CFG);
out_be32(&im->mddrc.lut_table0_main_upper, CONFIG_SYS_MDDRCGRP_LUT0_MU);
out_be32(&im->mddrc.lut_table0_main_lower, CONFIG_SYS_MDDRCGRP_LUT0_ML);
out_be32(&im->mddrc.lut_table1_main_upper, CONFIG_SYS_MDDRCGRP_LUT1_MU);
out_be32(&im->mddrc.lut_table1_main_lower, CONFIG_SYS_MDDRCGRP_LUT1_ML);
out_be32(&im->mddrc.lut_table2_main_upper, CONFIG_SYS_MDDRCGRP_LUT2_MU);
out_be32(&im->mddrc.lut_table2_main_lower, CONFIG_SYS_MDDRCGRP_LUT2_ML);
out_be32(&im->mddrc.lut_table3_main_upper, CONFIG_SYS_MDDRCGRP_LUT3_MU);
out_be32(&im->mddrc.lut_table3_main_lower, CONFIG_SYS_MDDRCGRP_LUT3_ML);
out_be32(&im->mddrc.lut_table4_main_upper, CONFIG_SYS_MDDRCGRP_LUT4_MU);
out_be32(&im->mddrc.lut_table4_main_lower, CONFIG_SYS_MDDRCGRP_LUT4_ML);
out_be32(&im->mddrc.lut_table0_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT0_AU);
out_be32(&im->mddrc.lut_table0_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT0_AL);
out_be32(&im->mddrc.lut_table1_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT1_AU);
out_be32(&im->mddrc.lut_table1_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT1_AL);
out_be32(&im->mddrc.lut_table2_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT2_AU);
out_be32(&im->mddrc.lut_table2_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT2_AL);
out_be32(&im->mddrc.lut_table3_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT3_AU);
out_be32(&im->mddrc.lut_table3_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT3_AL);
out_be32(&im->mddrc.lut_table4_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT4_AU);
out_be32(&im->mddrc.lut_table4_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT4_AL);
/* Initialize MDDRC */
out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG);
out_be32(&im->mddrc.ddr_time_config0, CONFIG_SYS_MDDRC_TIME_CFG0);
out_be32(&im->mddrc.ddr_time_config1, CONFIG_SYS_MDDRC_TIME_CFG1);
out_be32(&im->mddrc.ddr_time_config2, CONFIG_SYS_MDDRC_TIME_CFG2);
/* Initialize DDR */
for (i = 0; i < 10; i++)
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM2);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM2);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM3);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EN_DLL);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_OCD_DEFAULT);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
/* Start MDDRC */
out_be32(&im->mddrc.ddr_time_config0, CONFIG_SYS_MDDRC_TIME_CFG0_RUN);
out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG_RUN);
return msize;
}
int misc_init_r(void)
{
u32 tmp;
@@ -295,7 +180,6 @@ static iopin_t ioregs_init[] = {
},
};
int checkboard (void)
{
puts("Board: ARIA\n");