board/keymile/kmeter1/kmeter1.c

/*
 * Copyright (C) 2006 Freescale Semiconductor, Inc.
 *                    Dave Liu <daveliu@freescale.com>
 *
 * Copyright (C) 2007 Logic Product Development, Inc.
 *                    Peter Barada <peterb@logicpd.com>
 *
 * Copyright (C) 2007 MontaVista Software, Inc.
 *                    Anton Vorontsov <avorontsov@ru.mvista.com>
 *
 * (C) Copyright 2008
 * Heiko Schocher, DENX Software Engineering, hs@denx.de.
 *
 * 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 <ioports.h>
#include <mpc83xx.h>
#include <i2c.h>
#include <miiphy.h>
#include <asm/io.h>
#include <asm/mmu.h>
#include <asm/processor.h>
#include <pci.h>
#include <libfdt.h>

#include "../common/common.h"

const qe_iop_conf_t qe_iop_conf_tab[] = {
	/* port pin dir open_drain assign */

	/* MDIO */
	{0,  1, 3, 0, 2}, /* MDIO */
	{0,  2, 1, 0, 1}, /* MDC */

	/* UCC4 - UEC */
	{1, 14, 1, 0, 1}, /* TxD0 */
	{1, 15, 1, 0, 1}, /* TxD1 */
	{1, 20, 2, 0, 1}, /* RxD0 */
	{1, 21, 2, 0, 1}, /* RxD1 */
	{1, 18, 1, 0, 1}, /* TX_EN */
	{1, 26, 2, 0, 1}, /* RX_DV */
	{1, 27, 2, 0, 1}, /* RX_ER */
	{1, 24, 2, 0, 1}, /* COL */
	{1, 25, 2, 0, 1}, /* CRS */
	{2, 15, 2, 0, 1}, /* TX_CLK - CLK16 */
	{2, 16, 2, 0, 1}, /* RX_CLK - CLK17 */

	/* DUART - UART2 */
	{5,  0, 1, 0, 2}, /* UART2_SOUT */
	{5,  2, 1, 0, 1}, /* UART2_RTS */
	{5,  3, 2, 0, 2}, /* UART2_SIN */
	{5,  1, 2, 0, 3}, /* UART2_CTS */

	/* END of table */
	{0,  0, 0, 0, QE_IOP_TAB_END},
};

static int board_init_i2c_busses(void)
{
	I2C_MUX_DEVICE *dev = NULL;
	uchar	*buf;

	/* Set up the Bus for the DTTs */
	buf = (unsigned char *) getenv("dtt_bus");
	if (buf != NULL)
		dev = i2c_mux_ident_muxstring(buf);
	if (dev == NULL) {
		printf("Error couldn't add Bus for DTT\n");
		printf("please setup dtt_bus to where your\n");
		printf("DTT is found.\n");
	}
	return 0;
}

int board_early_init_r(void)
{
	struct km_bec_fpga *base = (struct km_bec_fpga *)CONFIG_SYS_PIGGY_BASE;
	unsigned short	svid;

	/*
	 * Because of errata in the UCCs, we have to write to the reserved
	 * registers to slow the clocks down.
	 */
	svid =  SVR_REV(mfspr(SVR));
	switch (svid) {
	case 0x0020:
		/*
		 * MPC8360ECE.pdf QE_ENET10 table 4:
		 * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2)
		 * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1)
		 */
		setbits_be32((void *)(CONFIG_SYS_IMMR + 0x14a8), 0x0c003000);
		break;
	case 0x0021:
		/*
		 * MPC8360ECE.pdf QE_ENET10 table 4:
		 * IMMR + 0x14AC[24:27] = 1010
		 */
		clrsetbits_be32((void *)(CONFIG_SYS_IMMR + 0x14ac),
			0x00000050, 0x000000a0);
		break;
	}
	/* enable the PHY on the PIGGY */
	setbits_8(&base->pgy_eth, 0x01);
	/* enable the Unit LED (green) */
	setbits_8(&base->oprth, WRL_BOOT);
	/* take FE/GbE PHYs out of reset */
	setbits_8(&base->prst, 0x1c);

	return 0;
}

int misc_init_r(void)
{
	/* add board specific i2c busses */
	board_init_i2c_busses();
	return 0;
}

int fixed_sdram(void)
{
	immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
	u32 msize = 0;
	u32 ddr_size;
	u32 ddr_size_log2;

	out_be32(&im->sysconf.ddrlaw[0].ar, (LAWAR_EN | 0x1e));
	out_be32(&im->ddr.csbnds[0].csbnds, CONFIG_SYS_DDR_CS0_BNDS);
	out_be32(&im->ddr.cs_config[0], CONFIG_SYS_DDR_CS0_CONFIG);
	out_be32(&im->ddr.timing_cfg_0, CONFIG_SYS_DDR_TIMING_0);
	out_be32(&im->ddr.timing_cfg_1, CONFIG_SYS_DDR_TIMING_1);
	out_be32(&im->ddr.timing_cfg_2, CONFIG_SYS_DDR_TIMING_2);
	out_be32(&im->ddr.timing_cfg_3, CONFIG_SYS_DDR_TIMING_3);
	out_be32(&im->ddr.sdram_cfg, CONFIG_SYS_DDR_SDRAM_CFG);
	out_be32(&im->ddr.sdram_cfg2, CONFIG_SYS_DDR_SDRAM_CFG2);
	out_be32(&im->ddr.sdram_mode, CONFIG_SYS_DDR_MODE);
	out_be32(&im->ddr.sdram_mode2, CONFIG_SYS_DDR_MODE2);
	out_be32(&im->ddr.sdram_interval, CONFIG_SYS_DDR_INTERVAL);
	out_be32(&im->ddr.sdram_clk_cntl, CONFIG_SYS_DDR_CLK_CNTL);
	udelay(200);
	out_be32(&im->ddr.sdram_cfg, SDRAM_CFG_MEM_EN);

	msize = CONFIG_SYS_DDR_SIZE << 20;
	disable_addr_trans();
	msize = get_ram_size(CONFIG_SYS_DDR_BASE, msize);
	enable_addr_trans();
	msize /= (1024 * 1024);
	if (CONFIG_SYS_DDR_SIZE != msize) {
		for (ddr_size = msize << 20, ddr_size_log2 = 0;
			(ddr_size > 1);
			ddr_size = ddr_size >> 1, ddr_size_log2++)
			if (ddr_size & 1)
				return -1;
		out_be32(&im->sysconf.ddrlaw[0].ar,
			(LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE)));
		out_be32(&im->ddr.csbnds[0].csbnds,
			(((msize / 16) - 1) & 0xff));
	}

	return msize;
}

phys_size_t initdram(int board_type)
{
	immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
	u32 msize = 0;

	if ((in_be32(&im->sysconf.immrbar) & IMMRBAR_BASE_ADDR) != (u32)im)
		return -1;

	out_be32(&im->sysconf.ddrlaw[0].bar,
		CONFIG_SYS_DDR_BASE & LAWBAR_BAR);
	msize = fixed_sdram();

#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
	/*
	 * Initialize DDR ECC byte
	 */
	ddr_enable_ecc(msize * 1024 * 1024);
#endif

	/* return total bus SDRAM size(bytes)  -- DDR */
	return (msize * 1024 * 1024);
}

int checkboard(void)
{
	puts("Board: Keymile kmeter1");
	if (ethernet_present())
		puts(" with PIGGY.");
	puts("\n");
	return 0;
}

#if defined(CONFIG_OF_BOARD_SETUP)
/*
 * update property in the blob
 */
void ft_blob_update(void *blob, bd_t *bd)
{
  /* no board specific update */
}


void ft_board_setup(void *blob, bd_t *bd)
{
	ft_cpu_setup (blob, bd);
	ft_blob_update (blob, bd);
}
#endif

#if defined(CONFIG_HUSH_INIT_VAR)
int hush_init_var(void)
{
	ivm_read_eeprom();
	return 0;
}
#endif