diff options
Diffstat (limited to 'board/freescale/mpc5121ads/mpc5121ads.c')
| -rw-r--r-- | board/freescale/mpc5121ads/mpc5121ads.c | 118 |
1 files changed, 6 insertions, 112 deletions
diff --git a/board/freescale/mpc5121ads/mpc5121ads.c b/board/freescale/mpc5121ads/mpc5121ads.c index ec74fd3..a0d7a82 100644 --- a/board/freescale/mpc5121ads/mpc5121ads.c +++ b/board/freescale/mpc5121ads/mpc5121ads.c @@ -26,6 +26,7 @@ #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> @@ -36,9 +37,6 @@ 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_DDR_EN | \ @@ -56,10 +54,6 @@ extern void ide_set_reset(int idereset); CLOCK_SCCR2_MEM_EN | \ CLOCK_SCCR2_SPDIF_EN) -#define CSAW_START(start) ((start) & 0xFFFF0000) -#define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16) - -long int fixed_sdram(void); void __mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip); /* Active chip number set in board_nand_select_device() (mpc5121_nfc.c) */ @@ -84,10 +78,10 @@ void mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip) out_8(csreg, v); } -int board_early_init_f (void) +int board_early_init_f(void) { volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - u32 lpcaw, spridr; + u32 spridr; /* * Initialize Local Window for the CPLD registers access (CS2 selects @@ -98,14 +92,7 @@ int board_early_init_f (void) CSAW_STOP(CONFIG_SYS_CPLD_BASE, CONFIG_SYS_CPLD_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 - */ - lpcaw = in_be32(&im->sysconf.lpcs6aw); - __asm__ __volatile__ ("isync"); + sync_law(&im->sysconf.lpcs2aw); /* * Disable Boot NOR FLASH write protect - CPLD Reg 8 NOR FLASH Control @@ -146,104 +133,11 @@ int board_early_init_f (void) return 0; } -phys_size_t initdram (int board_type) +phys_size_t initdram(int board_type) { u32 msize = 0; - msize = fixed_sdram (); - - return msize; -} - -/* - * 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); + msize = fixed_sdram(); return msize; } |