From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 01/12] am33xx: Correct and expand comments on CONFIG_SPL_MAX_SIZE
Date: Tue, 20 Aug 2013 08:53:43 -0400 [thread overview]
Message-ID: <1377003234-16792-2-git-send-email-trini@ti.com> (raw)
In-Reply-To: <1377003234-16792-1-git-send-email-trini@ti.com>
We had been allowing the max size to be larger than actually allowed by
the ROM. Expand the commentary here to explain why we set these
locations.
Signed-off-by: Tom Rini <trini@ti.com>
---
arch/arm/include/asm/arch-am33xx/omap.h | 2 +-
include/configs/ti_am335x_common.h | 10 ++++++++--
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/arch/arm/include/asm/arch-am33xx/omap.h b/arch/arm/include/asm/arch-am33xx/omap.h
index 1f84311..2250721 100644
--- a/arch/arm/include/asm/arch-am33xx/omap.h
+++ b/arch/arm/include/asm/arch-am33xx/omap.h
@@ -18,7 +18,7 @@
#ifdef CONFIG_AM33XX
#define NON_SECURE_SRAM_START 0x402F0400
#define NON_SECURE_SRAM_END 0x40310000
-#define SRAM_SCRATCH_SPACE_ADDR 0x4030C000
+#define SRAM_SCRATCH_SPACE_ADDR 0x4030B800
#elif defined(CONFIG_TI81XX)
#define NON_SECURE_SRAM_START 0x40300000
#define NON_SECURE_SRAM_END 0x40320000
diff --git a/include/configs/ti_am335x_common.h b/include/configs/ti_am335x_common.h
index fd3ffab..0eae9c8 100644
--- a/include/configs/ti_am335x_common.h
+++ b/include/configs/ti_am335x_common.h
@@ -41,9 +41,15 @@
#define CONFIG_BOOTP_SUBNETMASK
#define CONFIG_NET_RETRY_COUNT 10
-/* SPL defines. */
+/*
+ * SPL related defines. The Public RAM memory map the ROM defines the
+ * area between 0x402F0400 and 0x4030B800 as a download area and
+ * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also
+ * supports X-MODEM loading via UART, and we leverage this and then use
+ * Y-MODEM to load u-boot.img, when booted over UART.
+ */
#define CONFIG_SPL_TEXT_BASE 0x402F0400
-#define CONFIG_SPL_MAX_SIZE (0x4030C000 - CONFIG_SPL_TEXT_BASE)
+#define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE)
#define CONFIG_SPL_YMODEM_SUPPORT
/*
--
1.7.9.5
next prev parent reply other threads:[~2013-08-20 12:53 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-20 12:53 [U-Boot] [PATCH 00/12] am33xx/omap5: Improve docs for customization Tom Rini
2013-08-20 12:53 ` Tom Rini [this message]
2013-08-20 12:53 ` [U-Boot] [PATCH 02/12] TI:armv7: Move CONFIG_SPL_LIBDISK_SUPPORT to MMC section Tom Rini
2013-08-20 12:53 ` [U-Boot] [PATCH 03/12] omap5: Expand CONFIG_SPL_MAX_SIZE and comment upon SRAM_SCRATCH_SPACE_ADDR Tom Rini
2013-08-21 5:22 ` Sricharan R
2013-08-21 13:49 ` Tom Rini
2013-08-20 12:53 ` [U-Boot] [PATCH 04/12] TI:am335x: Better comment and organize the networking related options Tom Rini
2013-08-20 12:53 ` [U-Boot] [PATCH 05/12] am335x_evm: Add comment by SPL SPI support Tom Rini
2013-08-20 12:53 ` [U-Boot] [PATCH 06/12] am335x_evm: Regroup USB options Tom Rini
2013-08-20 12:53 ` [U-Boot] [PATCH 07/12] TI:armv7: Re-order slightly the generic CONFIG options, expand related comments Tom Rini
2013-08-20 12:53 ` [U-Boot] [PATCH 08/12] am335x_evm: Update README for customization Tom Rini
2013-08-20 12:53 ` [U-Boot] [PATCH 09/12] TI:am33xx: Move SPL YMODEM support to the per-board config Tom Rini
2013-08-20 12:53 ` [U-Boot] [PATCH 10/12] TI:omap5: Clarify comments about SPL and DDR timings in common config Tom Rini
2013-08-20 12:53 ` [U-Boot] [PATCH 11/12] omap5_uevm: Better comment why we have TCA642X and the reset time Tom Rini
2013-08-20 12:53 ` [U-Boot] [PATCH 12/12] dra7xx_evm: Re-order and comment the networking related config options Tom Rini
2013-08-28 18:25 ` [U-Boot] [PATCH 00/12] am33xx/omap5: Improve docs for customization Tom Rini
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