Move arch/ppc to arch/powerpc

As discussed on the list, move "arch/ppc" to "arch/powerpc" to
better match the Linux directory structure.

Please note that this patch also changes the "ppc" target in
MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
is kept as an alias for now, to not break compatibility with
scripts using this name.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Anatolij Gustschin <agust@denx.de>

1 files changed, 0 insertions, 297 deletions

diff --git a/arch/ppc/cpu/mpc8xxx/ddr/options.c b/arch/ppc/cpu/mpc8xxx/ddr/options.c
deleted file mode 100644
index 46731c8..0000000
--- a/arch/ppc/cpu/mpc8xxx/ddr/options.c
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * Copyright 2008, 2010 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 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/fsl_ddr_sdram.h>
-
-#include "ddr.h"
-
-/* Board-specific functions defined in each board's ddr.c */
-extern void fsl_ddr_board_options(memctl_options_t *popts,
-		dimm_params_t *pdimm,
-		unsigned int ctrl_num);
-
-unsigned int populate_memctl_options(int all_DIMMs_registered,
-			memctl_options_t *popts,
-			dimm_params_t *pdimm,
-			unsigned int ctrl_num)
-{
-	unsigned int i;
-	const char *p;
-
-	/* Chip select options. */
-
-	/* Pick chip-select local options. */
-	for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
-		/* If not DDR2, odt_rd_cfg and odt_wr_cfg need to be 0. */
-
-		/* only for single CS? */
-		popts->cs_local_opts[i].odt_rd_cfg = 0;
-
-		popts->cs_local_opts[i].odt_wr_cfg = 1;
-		popts->cs_local_opts[i].auto_precharge = 0;
-	}
-
-	/* Pick interleaving mode. */
-
-	/*
-	 * 0 = no interleaving
-	 * 1 = interleaving between 2 controllers
-	 */
-	popts->memctl_interleaving = 0;
-
-	/*
-	 * 0 = cacheline
-	 * 1 = page
-	 * 2 = (logical) bank
-	 * 3 = superbank (only if CS interleaving is enabled)
-	 */
-	popts->memctl_interleaving_mode = 0;
-
-	/*
-	 * 0: cacheline: bit 30 of the 36-bit physical addr selects the memctl
-	 * 1: page:      bit to the left of the column bits selects the memctl
-	 * 2: bank:      bit to the left of the bank bits selects the memctl
-	 * 3: superbank: bit to the left of the chip select selects the memctl
-	 *
-	 * NOTE: ba_intlv (rank interleaving) is independent of memory
-	 * controller interleaving; it is only within a memory controller.
-	 * Must use superbank interleaving if rank interleaving is used and
-	 * memory controller interleaving is enabled.
-	 */
-
-	/*
-	 * 0 = no
-	 * 0x40 = CS0,CS1
-	 * 0x20 = CS2,CS3
-	 * 0x60 = CS0,CS1 + CS2,CS3
-	 * 0x04 = CS0,CS1,CS2,CS3
-	 */
-	popts->ba_intlv_ctl = 0;
-
-	/* Memory Organization Parameters */
-	popts->registered_dimm_en = all_DIMMs_registered;
-
-	/* Operational Mode Paramters */
-
-	/* Pick ECC modes */
-#ifdef CONFIG_DDR_ECC
-	popts->ECC_mode = 1;		  /* 0 = disabled, 1 = enabled */
-#else
-	popts->ECC_mode = 0;		  /* 0 = disabled, 1 = enabled */
-#endif
-	popts->ECC_init_using_memctl = 1; /* 0 = use DMA, 1 = use memctl */
-
-	/*
-	 * Choose DQS config
-	 * 0 for DDR1
-	 * 1 for DDR2
-	 */
-#if defined(CONFIG_FSL_DDR1)
-	popts->DQS_config = 0;
-#elif defined(CONFIG_FSL_DDR2) || defined(CONFIG_FSL_DDR3)
-	popts->DQS_config = 1;
-#endif
-
-	/* Choose self-refresh during sleep. */
-	popts->self_refresh_in_sleep = 1;
-
-	/* Choose dynamic power management mode. */
-	popts->dynamic_power = 0;
-
-	/* 0 = 64-bit, 1 = 32-bit, 2 = 16-bit */
-	popts->data_bus_width = 0;
-
-	/* Choose burst length. */
-#if defined(CONFIG_FSL_DDR3)
-#if defined(CONFIG_E500MC)
-	popts->OTF_burst_chop_en = 0;	/* on-the-fly burst chop disable */
-	popts->burst_length = DDR_BL8;	/* Fixed 8-beat burst len */
-#else
-	popts->OTF_burst_chop_en = 1;	/* on-the-fly burst chop */
-	popts->burst_length = DDR_OTF;	/* on-the-fly BC4 and BL8 */
-#endif
-#else
-	popts->burst_length = DDR_BL4;	/* has to be 4 for DDR2 */
-#endif
-
-	/* Choose ddr controller address mirror mode */
-#if defined(CONFIG_FSL_DDR3)
-	popts->mirrored_dimm = pdimm[0].mirrored_dimm;
-#endif
-
-	/* Global Timing Parameters. */
-	debug("mclk_ps = %u ps\n", get_memory_clk_period_ps());
-
-	/* Pick a caslat override. */
-	popts->cas_latency_override = 0;
-	popts->cas_latency_override_value = 3;
-	if (popts->cas_latency_override) {
-		debug("using caslat override value = %u\n",
-		       popts->cas_latency_override_value);
-	}
-
-	/* Decide whether to use the computed derated latency */
-	popts->use_derated_caslat = 0;
-
-	/* Choose an additive latency. */
-	popts->additive_latency_override = 0;
-	popts->additive_latency_override_value = 3;
-	if (popts->additive_latency_override) {
-		debug("using additive latency override value = %u\n",
-		       popts->additive_latency_override_value);
-	}
-
-	/*
-	 * 2T_EN setting
-	 *
-	 * Factors to consider for 2T_EN:
-	 *	- number of DIMMs installed
-	 *	- number of components, number of active ranks
-	 *	- how much time you want to spend playing around
-	 */
-	popts->twoT_en = 0;
-	popts->threeT_en = 0;
-
-	/*
-	 * BSTTOPRE precharge interval
-	 *
-	 * Set this to 0 for global auto precharge
-	 *
-	 * FIXME: Should this be configured in picoseconds?
-	 * Why it should be in ps:  better understanding of this
-	 * relative to actual DRAM timing parameters such as tRAS.
-	 * e.g. tRAS(min) = 40 ns
-	 */
-	popts->bstopre = 0x100;
-
-	/* Minimum CKE pulse width -- tCKE(MIN) */
-	popts->tCKE_clock_pulse_width_ps
-		= mclk_to_picos(FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR);
-
-	/*
-	 * Window for four activates -- tFAW
-	 *
-	 * FIXME: UM: applies only to DDR2/DDR3 with eight logical banks only
-	 * FIXME: varies depending upon number of column addresses or data
-	 * FIXME: width, was considering looking at pdimm->primary_sdram_width
-	 */
-#if defined(CONFIG_FSL_DDR1)
-	popts->tFAW_window_four_activates_ps = mclk_to_picos(1);
-
-#elif defined(CONFIG_FSL_DDR2)
-	/*
-	 * x4/x8;  some datasheets have 35000
-	 * x16 wide columns only?  Use 50000?
-	 */
-	popts->tFAW_window_four_activates_ps = 37500;
-
-#elif defined(CONFIG_FSL_DDR3)
-	popts->tFAW_window_four_activates_ps = pdimm[0].tFAW_ps;
-#endif
-	popts->zq_en = 0;
-	popts->wrlvl_en = 0;
-#if defined(CONFIG_FSL_DDR3)
-	/*
-	 * due to ddr3 dimm is fly-by topology
-	 * we suggest to enable write leveling to
-	 * meet the tQDSS under different loading.
-	 */
-	popts->wrlvl_en = 1;
-	popts->wrlvl_override = 0;
-#endif
-
-	/*
-	 * Check interleaving configuration from environment.
-	 * Please refer to doc/README.fsl-ddr for the detail.
-	 *
-	 * If memory controller interleaving is enabled, then the data
-	 * bus widths must be programmed identically for the 2 memory
-	 * controllers.
-	 *
-	 * XXX: Attempt to set both controllers to the same chip select
-	 * interleaving mode. It will do a best effort to get the
-	 * requested ranks interleaved together such that the result
-	 * should be a subset of the requested configuration.
-	 */
-#if (CONFIG_NUM_DDR_CONTROLLERS > 1)
-	if ((p = getenv("memctl_intlv_ctl")) != NULL) {
-		if (pdimm[0].n_ranks == 0) {
-			printf("There is no rank on CS0. Because only rank on "
-				"CS0 and ranks chip-select interleaved with CS0"
-				" are controller interleaved, force non memory "
-				"controller interleaving\n");
-			popts->memctl_interleaving = 0;
-		} else {
-			popts->memctl_interleaving = 1;
-			if (strcmp(p, "cacheline") == 0)
-				popts->memctl_interleaving_mode =
-					FSL_DDR_CACHE_LINE_INTERLEAVING;
-			else if (strcmp(p, "page") == 0)
-				popts->memctl_interleaving_mode =
-					FSL_DDR_PAGE_INTERLEAVING;
-			else if (strcmp(p, "bank") == 0)
-				popts->memctl_interleaving_mode =
-					FSL_DDR_BANK_INTERLEAVING;
-			else if (strcmp(p, "superbank") == 0)
-				popts->memctl_interleaving_mode =
-					FSL_DDR_SUPERBANK_INTERLEAVING;
-			else
-				popts->memctl_interleaving_mode =
-						simple_strtoul(p, NULL, 0);
-		}
-	}
-#endif
-
-	if( ((p = getenv("ba_intlv_ctl")) != NULL) &&
-		(CONFIG_CHIP_SELECTS_PER_CTRL > 1)) {
-		if (strcmp(p, "cs0_cs1") == 0)
-			popts->ba_intlv_ctl = FSL_DDR_CS0_CS1;
-		else if (strcmp(p, "cs2_cs3") == 0)
-			popts->ba_intlv_ctl = FSL_DDR_CS2_CS3;
-		else if (strcmp(p, "cs0_cs1_and_cs2_cs3") == 0)
-			popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_AND_CS2_CS3;
-		else if (strcmp(p, "cs0_cs1_cs2_cs3") == 0)
-			popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_CS2_CS3;
-		else
-			popts->ba_intlv_ctl = simple_strtoul(p, NULL, 0);
-
-		switch (popts->ba_intlv_ctl & FSL_DDR_CS0_CS1_CS2_CS3) {
-		case FSL_DDR_CS0_CS1_CS2_CS3:
-		case FSL_DDR_CS0_CS1:
-			if (pdimm[0].n_ranks != 2) {
-				popts->ba_intlv_ctl = 0;
-				printf("Not enough bank(chip-select) for "
-					"CS0+CS1, force non-interleaving!\n");
-			}
-			break;
-		case FSL_DDR_CS2_CS3:
-			if (pdimm[1].n_ranks !=2){
-				popts->ba_intlv_ctl = 0;
-				printf("Not enough bank(CS) for CS2+CS3, "
-					"force non-interleaving!\n");
-			}
-			break;
-		case FSL_DDR_CS0_CS1_AND_CS2_CS3:
-			if ((pdimm[0].n_ranks != 2)||(pdimm[1].n_ranks != 2)) {
-				popts->ba_intlv_ctl = 0;
-				printf("Not enough bank(CS) for CS0+CS1 or "
-					"CS2+CS3, force non-interleaving!\n");
-			}
-			break;
-		default:
-			popts->ba_intlv_ctl = 0;
-			break;
-		}
-	}
-
-	fsl_ddr_board_options(popts, pdimm, ctrl_num);
-
-	return 0;
-}