[U-Boot] [PATCH] overo: add SPL support
Andreas Müller
schnitzeltony at gmx.de
Wed Dec 14 17:27:32 CET 2011
* implemenatation based on ti beagleboard/omap3evm
* timing data taken from x-loader
* run-tested with overo release 0 and 1 / boot from NAND and SDcard
Signed-off-by: Andreas Müller <schnitzeltony at gmx.de>
---
arch/arm/include/asm/arch-omap3/mem.h | 27 ++++++++++++++++
board/overo/config.mk | 28 ----------------
board/overo/overo.c | 41 +++++++++++++++++++++++-
include/configs/omap3_overo.h | 56 ++++++++++++++++++++++++++++++++-
4 files changed, 122 insertions(+), 30 deletions(-)
delete mode 100644 board/overo/config.mk
diff --git a/arch/arm/include/asm/arch-omap3/mem.h b/arch/arm/include/asm/arch-omap3/mem.h
index 5fd02d4..18998d8 100644
--- a/arch/arm/include/asm/arch-omap3/mem.h
+++ b/arch/arm/include/asm/arch-omap3/mem.h
@@ -123,6 +123,33 @@ enum {
V_MCFG_BANKALLOCATION_RBC | \
V_MCFG_B32NOT16_32 | V_MCFG_DEEPPD_EN | V_MCFG_RAMTYPE_DDR
+
+/* Hynix part of Overo (165MHz optimized) 6.06ns */
+#define HYNIX_TDAL_165 6
+#define HYNIX_TDPL_165 3
+#define HYNIX_TRRD_165 2
+#define HYNIX_TRCD_165 3
+#define HYNIX_TRP_165 3
+#define HYNIX_TRAS_165 7
+#define HYNIX_TRC_165 10
+#define HYNIX_TRFC_165 21
+#define HYNIX_V_ACTIMA_165 \
+ ACTIM_CTRLA(HYNIX_TRFC_165, HYNIX_TRC_165, \
+ HYNIX_TRAS_165, HYNIX_TRP_165, \
+ HYNIX_TRCD_165, HYNIX_TRRD_165, \
+ HYNIX_TDPL_165, HYNIX_TDAL_165)
+
+#define HYNIX_TWTR_165 1
+#define HYNIX_TCKE_165 1
+#define HYNIX_TXP_165 2
+#define HYNIX_XSR_165 24
+#define HYNIX_V_ACTIMB_165 \
+ ACTIM_CTRLB(HYNIX_TWTR_165, HYNIX_TCKE_165, \
+ HYNIX_TXP_165, HYNIX_XSR_165)
+
+#define HYNIX_RASWIDTH_165 0x2
+#define HYNIX_V_MCFG_165(size) MCFG((size), HYNIX_RASWIDTH_165)
+
/* Hynix part of AM/DM37xEVM (200MHz optimized) */
#define HYNIX_TDAL_200 6
#define HYNIX_TDPL_200 3
diff --git a/board/overo/config.mk b/board/overo/config.mk
deleted file mode 100644
index e7c471c..0000000
--- a/board/overo/config.mk
+++ /dev/null
@@ -1,28 +0,0 @@
-#
-# Overo uses OMAP3 (ARM-CortexA8) cpu
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# 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.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-# Physical Address:
-# 8000'0000 (bank0)
-# A000/0000 (bank1)
-# Linux-Kernel is expected to be at 8000'8000, entry 8000'8000
-# (mem base + reserved)
-
-CONFIG_SYS_TEXT_BASE = 0x80008000
diff --git a/board/overo/overo.c b/board/overo/overo.c
index 3c60b06..dbe43ab 100644
--- a/board/overo/overo.c
+++ b/board/overo/overo.c
@@ -31,6 +31,7 @@
#include <common.h>
#include <netdev.h>
#include <twl4030.h>
+#include <linux/mtd/nand.h>
#include <asm/io.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mux.h>
@@ -126,6 +127,44 @@ int get_board_revision(void)
return revision;
}
+#ifdef CONFIG_SPL_BUILD
+/*
+ * Routine: get_board_mem_timings
+ * Description: If we use SPL then there is no x-loader nor config header
+ * so we have to setup the DDR timings ourself on both banks.
+ */
+void get_board_mem_timings(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl,
+ u32 *mr)
+{
+ *mr = MICRON_V_MR_165;
+ switch (get_board_revision()) {
+ case 0: /* Micron 1286MB/256MB, 1/2 banks of 128MB */
+ *mcfg = MICRON_V_MCFG_165(128 << 20);
+ *ctrla = MICRON_V_ACTIMA_165;
+ *ctrlb = MICRON_V_ACTIMB_165;
+ *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+ break;
+ case 1: /* Micron 256MB/512MB, 1/2 banks of 256MB */
+ *mcfg = MICRON_V_MCFG_165(256 << 20);
+ *ctrla = MICRON_V_ACTIMA_165;
+ *ctrlb = MICRON_V_ACTIMB_165;
+ *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+ break;
+ case 2: /* Hynix 256MB/512MB, 1/2 banks of 256MB */
+ *mcfg = HYNIX_V_MCFG_165(256 << 20);
+ *ctrla = HYNIX_V_ACTIMA_165;
+ *ctrlb = HYNIX_V_ACTIMB_165;
+ *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+ break;
+ default:
+ *mcfg = MICRON_V_MCFG_165(128 << 20);
+ *ctrla = MICRON_V_ACTIMA_165;
+ *ctrlb = MICRON_V_ACTIMB_165;
+ *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+ }
+}
+#endif
+
/*
* Routine: get_sdio2_config
* Description: Return information about the wifi module connection
@@ -337,7 +376,7 @@ int board_eth_init(bd_t *bis)
return rc;
}
-#ifdef CONFIG_GENERIC_MMC
+#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
int board_mmc_init(bd_t *bis)
{
omap_mmc_init(0);
diff --git a/include/configs/omap3_overo.h b/include/configs/omap3_overo.h
index 79eb466..d9f54d1 100644
--- a/include/configs/omap3_overo.h
+++ b/include/configs/omap3_overo.h
@@ -149,6 +149,25 @@
#define CONFIG_JFFS2_PART_SIZE 0xf980000 /* size of jffs2 */
/* partition */
+/* NAND boot config */
+#define CONFIG_SYS_NAND_5_ADDR_CYCLE
+#define CONFIG_SYS_NAND_PAGE_COUNT 64
+#define CONFIG_SYS_NAND_PAGE_SIZE 2048
+#define CONFIG_SYS_NAND_OOBSIZE 64
+#define CONFIG_SYS_NAND_BLOCK_SIZE (128*1024)
+#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0
+#define CONFIG_SYS_NAND_ECCPOS {2, 3, 4, 5, 6, 7, 8, 9,\
+ 10, 11, 12, 13}
+#define CONFIG_SYS_NAND_ECCSIZE 512
+#define CONFIG_SYS_NAND_ECCBYTES 3
+#define CONFIG_SYS_NAND_ECCSTEPS (CONFIG_SYS_NAND_PAGE_SIZE / \
+ CONFIG_SYS_NAND_ECCSIZE)
+#define CONFIG_SYS_NAND_ECCTOTAL (CONFIG_SYS_NAND_ECCBYTES * \
+ CONFIG_SYS_NAND_ECCSTEPS)
+#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x80000
+
+
/* Environment information */
#define CONFIG_BOOTDELAY 5
@@ -249,7 +268,6 @@
*/
#define CONFIG_NR_DRAM_BANKS 2 /* CS1 may or may not be populated */
#define PHYS_SDRAM_1 OMAP34XX_SDRC_CS0
-#define PHYS_SDRAM_1_SIZE (32 << 20) /* at least 32 MiB */
#define PHYS_SDRAM_2 OMAP34XX_SDRC_CS1
/*-----------------------------------------------------------------------
@@ -292,6 +310,13 @@
#endif /* (CONFIG_CMD_NET) */
+/*
+ * 1MB into the SDRAM to allow for SPL's bss at the beginning of SDRAM
+ * 64 bytes before this address should be set aside for u-boot.img's
+ * header. That is 0x800FFFC0--0x80100000 should not be used for any
+ * other needs.
+ */
+#define CONFIG_SYS_TEXT_BASE 0x80100000
#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1
#define CONFIG_SYS_INIT_RAM_ADDR 0x4020f800
#define CONFIG_SYS_INIT_RAM_SIZE 0x800
@@ -301,4 +326,33 @@
#define CONFIG_SYS_CACHELINE_SIZE 64
+
+/* Defines for SPL */
+#define CONFIG_SPL
+#define CONFIG_SPL_NAND_SIMPLE
+#define CONFIG_SPL_TEXT_BASE 0x40200800
+#define CONFIG_SPL_MAX_SIZE (45 * 1024)
+#define CONFIG_SPL_STACK LOW_LEVEL_SRAM_STACK
+
+#define CONFIG_SPL_BSS_START_ADDR 0x80000000
+#define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
+
+#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */
+#define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */
+#define CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION 1
+#define CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME "u-boot.img"
+
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBDISK_SUPPORT
+#define CONFIG_SPL_I2C_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_MMC_SUPPORT
+#define CONFIG_SPL_FAT_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_POWER_SUPPORT
+#define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/omap-common/u-boot-spl.lds"
+#define CONFIG_SYS_SPL_MALLOC_START 0x80208000
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000
+
#endif /* __CONFIG_H */
--
1.7.6.4
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