+++ /dev/null
-/*
- * (C) Copyright 2008
- * Texas Instruments, <www.ti.com>
- *
- * Author :
- * Manikandan Pillai <mani.pillai@ti.com>
- *
- * Initial Code from:
- * Richard Woodruff <r-woodruff2@ti.com>
- * Syed Mohammed Khasim <khasim@ti.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/arch/mem.h>
-#include <asm/arch/sys_proto.h>
-#include <command.h>
-
-struct gpmc *gpmc_cfg;
-
-#if defined(CONFIG_CMD_NAND)
-static const u32 gpmc_m_nand[GPMC_MAX_REG] = {
- M_NAND_GPMC_CONFIG1,
- M_NAND_GPMC_CONFIG2,
- M_NAND_GPMC_CONFIG3,
- M_NAND_GPMC_CONFIG4,
- M_NAND_GPMC_CONFIG5,
- M_NAND_GPMC_CONFIG6, 0
-};
-#endif /* CONFIG_CMD_NAND */
-
-#if defined(CONFIG_CMD_ONENAND)
-static const u32 gpmc_onenand[GPMC_MAX_REG] = {
- ONENAND_GPMC_CONFIG1,
- ONENAND_GPMC_CONFIG2,
- ONENAND_GPMC_CONFIG3,
- ONENAND_GPMC_CONFIG4,
- ONENAND_GPMC_CONFIG5,
- ONENAND_GPMC_CONFIG6, 0
-};
-#endif /* CONFIG_CMD_ONENAND */
-
-/********************************************************
- * mem_ok() - test used to see if timings are correct
- * for a part. Helps in guessing which part
- * we are currently using.
- *******************************************************/
-u32 mem_ok(u32 cs)
-{
- u32 val1, val2, addr;
- u32 pattern = 0x12345678;
-
- addr = OMAP34XX_SDRC_CS0 + get_sdr_cs_offset(cs);
-
- writel(0x0, addr + 0x400); /* clear pos A */
- writel(pattern, addr); /* pattern to pos B */
- writel(0x0, addr + 4); /* remove pattern off the bus */
- val1 = readl(addr + 0x400); /* get pos A value */
- val2 = readl(addr); /* get val2 */
- writel(0x0, addr + 0x400); /* clear pos A */
-
- if ((val1 != 0) || (val2 != pattern)) /* see if pos A val changed */
- return 0;
- else
- return 1;
-}
-
-void enable_gpmc_cs_config(const u32 *gpmc_config, struct gpmc_cs *cs, u32 base,
- u32 size)
-{
- writel(0, &cs->config7);
- sdelay(1000);
- /* Delay for settling */
- writel(gpmc_config[0], &cs->config1);
- writel(gpmc_config[1], &cs->config2);
- writel(gpmc_config[2], &cs->config3);
- writel(gpmc_config[3], &cs->config4);
- writel(gpmc_config[4], &cs->config5);
- writel(gpmc_config[5], &cs->config6);
-
- /*
- * Enable the config. size is the CS size and goes in
- * bits 11:8. We set bit 6 to enable this CS and the base
- * address goes into bits 5:0.
- */
- writel((size << 8) | (GPMC_CS_ENABLE << 6) |
- ((base >> 24) & GPMC_BASEADDR_MASK),
- &cs->config7);
- sdelay(2000);
-}
-
-/*****************************************************
- * gpmc_init(): init gpmc bus
- * Init GPMC for x16, MuxMode (SDRAM in x32).
- * This code can only be executed from SRAM or SDRAM.
- *****************************************************/
-void gpmc_init(void)
-{
- /* putting a blanket check on GPMC based on ZeBu for now */
- gpmc_cfg = (struct gpmc *)GPMC_BASE;
-#if defined(CONFIG_CMD_NAND) || defined(CONFIG_CMD_ONENAND)
- const u32 *gpmc_config = NULL;
- u32 base = 0;
- u32 size = 0;
-#endif
- u32 config = 0;
-
- /* global settings */
- writel(0, &gpmc_cfg->irqenable); /* isr's sources masked */
- writel(0, &gpmc_cfg->timeout_control);/* timeout disable */
-
- config = readl(&gpmc_cfg->config);
- config &= (~0xf00);
- writel(config, &gpmc_cfg->config);
-
- /*
- * Disable the GPMC0 config set by ROM code
- * It conflicts with our MPDB (both at 0x08000000)
- */
- writel(0, &gpmc_cfg->cs[0].config7);
- sdelay(1000);
-
-#if defined(CONFIG_CMD_NAND) /* CS 0 */
- gpmc_config = gpmc_m_nand;
-
- base = PISMO1_NAND_BASE;
- size = PISMO1_NAND_SIZE;
- enable_gpmc_cs_config(gpmc_config, &gpmc_cfg->cs[0], base, size);
-#endif
-
-#if defined(CONFIG_CMD_ONENAND)
- gpmc_config = gpmc_onenand;
- base = PISMO1_ONEN_BASE;
- size = PISMO1_ONEN_SIZE;
- enable_gpmc_cs_config(gpmc_config, &gpmc_cfg->cs[0], base, size);
-#endif
-}