ppc: minimal Freescale P1010RDB board support

This is a limited board support for the Freescale P1010RDB.
The board boots from NOR and output the prompt to the serial port
at 115200 bauds. All 3 Ethernet ports are supported by the gianfar
driver. I2C devices are accessible on both bus and the memory is
initialised by the 85xx DDR driver.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 60 insertions, 0 deletions

diff --git a/arch/ppc/boards/freescale-p1010rdb/ddr.c b/arch/ppc/boards/freescale-p1010rdb/ddr.c
new file mode 100644
index 0000000000..18069f4df1
--- /dev/null
+++ b/arch/ppc/boards/freescale-p1010rdb/ddr.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <init.h>
+#include <mach/fsl_i2c.h>
+#include <mach/immap_85xx.h>
+#include <mach/clock.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/fsl_lbc.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_ddr_dimm_params.h>
+#include "p1010rdb.h"
+
+static const u8 spd_addr = 0x52;
+
+int fsl_ddr_board_info(struct ddr_board_info_s *info)
+{
+	p1010rdb_early_init();
+
+	info->fsl_ddr_ver = 0;
+	info->ddr_base = IOMEM(MPC85xx_DDR_ADDR);
+	/* Actual number of chip select used */
+	info->cs_per_ctrl = CFG_CHIP_SELECTS_PER_CTRL;
+	info->dimm_slots_per_ctrl = 1;
+	info->i2c_bus = 1;
+	info->i2c_slave = 0x7f;
+	info->i2c_speed = 400000;
+	info->i2c_base = IOMEM(I2C2_BASE_ADDR);
+	info->spd_i2c_addr = &spd_addr;
+
+	return 0;
+}
+
+void fsl_ddr_board_options(struct memctl_options_s *popts,
+		struct dimm_params_s *pdimm)
+{
+	popts->cs_local_opts[0].odt_rd_cfg = FSL_DDR_ODT_NEVER;
+	popts->cs_local_opts[0].odt_wr_cfg = FSL_DDR_ODT_CS;
+	popts->cs_local_opts[0].odt_rtt_norm = DDR3_RTT_40_OHM;
+	popts->cs_local_opts[0].odt_rtt_wr = DDR3_RTT_OFF;
+
+	popts->clk_adjust = 6;
+	popts->cpo_override = 0x1f;
+	popts->write_data_delay = 2;
+	/* Write leveling override */
+	popts->wrlvl_en = 1;
+	popts->wrlvl_override = 1;
+	popts->wrlvl_sample = 0xf;
+	popts->wrlvl_start = 0x8;
+	popts->trwt_override = 1;
+	popts->trwt = 0;
+	popts->dll_rst_dis = 1;
+}