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authorStefan Roese <sr@denx.de>2013-12-04 09:27:34 +0100
committerTom Rini <trini@ti.com>2013-12-12 14:54:21 -0500
commita9f524904730a0f722483938bf7eb8baedbc2448 (patch)
tree42b8670b3b529104f667f07b443bd2fb1ead86f3
parent550e3756c52ae1c93df2a5528ab5ff6d69c7dcdc (diff)
arm: omap3: Add SPL support to tao3530
Add SPL support for the Technexion TAO3530 SOM to replace x-loader. Tested with the Thunder baseboard. Currently this is only tested with the TAO3530 SOM revision (Ax/Bx). Tested by booting via MMC and NAND. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Tapani Utriainen <tapani@technexion.com> Cc: Thorsten Eisbein <thorsten.eisbein@head-acoustics.de> Cc: Tom Rini <trini@ti.com>
-rw-r--r--board/technexion/tao3530/tao3530.c27
-rw-r--r--include/configs/tao3530.h65
2 files changed, 91 insertions, 1 deletions
diff --git a/board/technexion/tao3530/tao3530.c b/board/technexion/tao3530/tao3530.c
index 0668c256f3..9268d38877 100644
--- a/board/technexion/tao3530/tao3530.c
+++ b/board/technexion/tao3530/tao3530.c
@@ -67,6 +67,31 @@ out:
return ret;
}
+#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(struct board_sdrc_timings *timings)
+{
+ if (tao3530_revision() < 3) {
+ /* 256MB / Bank */
+ timings->mcfg = MCFG(256 << 20, 14); /* RAS-width 14 */
+ timings->ctrla = HYNIX_V_ACTIMA_165;
+ timings->ctrlb = HYNIX_V_ACTIMB_165;
+ } else {
+ /* 128MB / Bank */
+ timings->mcfg = MCFG(128 << 20, 13); /* RAS-width 13 */
+ timings->ctrla = MICRON_V_ACTIMA_165;
+ timings->ctrlb = MICRON_V_ACTIMB_165;
+ }
+
+ timings->mr = MICRON_V_MR_165;
+ timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+}
+#endif
+
/*
* Routine: board_init
* Description: Early hardware init.
@@ -134,7 +159,7 @@ void set_muxconf_regs(void)
MUX_TAO3530();
}
-#ifdef CONFIG_GENERIC_MMC
+#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
int board_mmc_init(bd_t *bis)
{
omap_mmc_init(0, 0, 0, -1, -1);
diff --git a/include/configs/tao3530.h b/include/configs/tao3530.h
index cf20ae78f0..fdc6c066da 100644
--- a/include/configs/tao3530.h
+++ b/include/configs/tao3530.h
@@ -5,6 +5,8 @@
* Edward Lin <linuxfae@technexion.com>
* Tapani Utriainen <linuxfae@technexion.com>
*
+ * Copyright (C) 2013 Stefan Roese <sr@denx.de>
+ *
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -298,4 +300,67 @@
#define CONFIG_USB_STORAGE
#define CONGIG_CMD_STORAGE
+/* Defines for SPL */
+#define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
+#define CONFIG_SPL_NAND_SIMPLE
+
+#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_BOARD_INIT
+#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_NAND_BASE
+#define CONFIG_SPL_NAND_DRIVERS
+#define CONFIG_SPL_NAND_ECC
+#define CONFIG_SPL_GPIO_SUPPORT
+#define CONFIG_SPL_POWER_SUPPORT
+#define CONFIG_SPL_OMAP3_ID_NAND
+#define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/omap-common/u-boot-spl.lds"
+
+/* 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 NAND_LARGE_BADBLOCK_POS
+/*
+ * Use the ECC/OOB layout from omap_gpmc.h that matches your chip:
+ * SP vs LP, 8bit vs 16bit: GPMC_NAND_HW_ECC_LAYOUT
+ */
+#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_NAND_OMAP_ECCSCHEME OMAP_ECC_HAM1_CODE_HW
+
+#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x80000
+
+#define CONFIG_SPL_TEXT_BASE 0x40200800
+#define CONFIG_SPL_MAX_SIZE (54 * 1024) /* 8 KB for stack */
+#define CONFIG_SPL_STACK LOW_LEVEL_SRAM_STACK
+
+/*
+ * Use 0x80008000 as TEXT_BASE here for compatibility reasons with the
+ * older x-loader implementations. And move the BSS area so that it
+ * doesn't overlap with TEXT_BASE.
+ */
+#define CONFIG_SYS_TEXT_BASE 0x80008000
+#define CONFIG_SPL_BSS_START_ADDR 0x80100000
+#define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
+
+#define CONFIG_SYS_SPL_MALLOC_START 0x80208000
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000
+
#endif /* __CONFIG_H */