From 5614e71b4956c579cd4419b958b33fa6316eaa92 Mon Sep 17 00:00:00 2001 From: York Sun Date: Mon, 30 Sep 2013 09:22:09 -0700 Subject: Driver/DDR: Moving Freescale DDR driver to a common driver Freescale DDR driver has been used for mpc83xx, mpc85xx, mpc86xx SoCs. The similar DDR controllers will be used for ARM-based SoCs. Signed-off-by: York Sun --- arch/powerpc/cpu/mpc86xx/Makefile | 3 -- arch/powerpc/cpu/mpc86xx/ddr-8641.c | 85 ------------------------------------- 2 files changed, 88 deletions(-) delete mode 100644 arch/powerpc/cpu/mpc86xx/ddr-8641.c (limited to 'arch/powerpc/cpu/mpc86xx') diff --git a/arch/powerpc/cpu/mpc86xx/Makefile b/arch/powerpc/cpu/mpc86xx/Makefile index bcb786d..0f790b0 100644 --- a/arch/powerpc/cpu/mpc86xx/Makefile +++ b/arch/powerpc/cpu/mpc86xx/Makefile @@ -16,9 +16,6 @@ obj-$(CONFIG_MP) += release.o obj-y += cpu.o obj-y += cpu_init.o -# 8610 & 8641 are identical w/regards to DDR -obj-$(CONFIG_MPC8610) += ddr-8641.o -obj-$(CONFIG_MPC8641) += ddr-8641.o obj-$(CONFIG_OF_LIBFDT) += fdt.o obj-y += interrupts.o obj-$(CONFIG_MP) += mp.o diff --git a/arch/powerpc/cpu/mpc86xx/ddr-8641.c b/arch/powerpc/cpu/mpc86xx/ddr-8641.c deleted file mode 100644 index 33a91f9..0000000 --- a/arch/powerpc/cpu/mpc86xx/ddr-8641.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * Copyright 2008 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * Version 2 as published by the Free Software Foundation. - */ - -#include -#include -#include - -#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4) -#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL -#endif - -void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, - unsigned int ctrl_num, int step) -{ - unsigned int i; - volatile ccsr_ddr_t *ddr; - - switch (ctrl_num) { - case 0: - ddr = (void *)CONFIG_SYS_MPC8xxx_DDR_ADDR; - break; - case 1: - ddr = (void *)CONFIG_SYS_MPC8xxx_DDR2_ADDR; - break; - default: - printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num); - return; - } - - for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { - if (i == 0) { - out_be32(&ddr->cs0_bnds, regs->cs[i].bnds); - out_be32(&ddr->cs0_config, regs->cs[i].config); - - } else if (i == 1) { - out_be32(&ddr->cs1_bnds, regs->cs[i].bnds); - out_be32(&ddr->cs1_config, regs->cs[i].config); - - } else if (i == 2) { - out_be32(&ddr->cs2_bnds, regs->cs[i].bnds); - out_be32(&ddr->cs2_config, regs->cs[i].config); - - } else if (i == 3) { - out_be32(&ddr->cs3_bnds, regs->cs[i].bnds); - out_be32(&ddr->cs3_config, regs->cs[i].config); - } - } - - out_be32(&ddr->timing_cfg_3, regs->timing_cfg_3); - out_be32(&ddr->timing_cfg_0, regs->timing_cfg_0); - out_be32(&ddr->timing_cfg_1, regs->timing_cfg_1); - out_be32(&ddr->timing_cfg_2, regs->timing_cfg_2); - out_be32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); - out_be32(&ddr->sdram_mode, regs->ddr_sdram_mode); - out_be32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2); - out_be32(&ddr->sdram_mode_cntl, regs->ddr_sdram_md_cntl); - out_be32(&ddr->sdram_interval, regs->ddr_sdram_interval); - out_be32(&ddr->sdram_data_init, regs->ddr_data_init); - out_be32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl); - out_be32(&ddr->init_addr, regs->ddr_init_addr); - out_be32(&ddr->init_ext_addr, regs->ddr_init_ext_addr); - - debug("before go\n"); - - /* - * 200 painful micro-seconds must elapse between - * the DDR clock setup and the DDR config enable. - */ - udelay(200); - asm volatile("sync;isync"); - - out_be32(&ddr->sdram_cfg, regs->ddr_sdram_cfg); - - /* - * Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done - */ - while (in_be32(&ddr->sdram_cfg_2) & 0x10) { - udelay(10000); /* throttle polling rate */ - } -} -- cgit v1.1