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authorTom Rini <trini@ti.com>2013-08-20 08:53:43 -0400
committerTom Rini <trini@ti.com>2013-08-28 11:44:58 -0400
commitc27efde68dfd7fd2da364d556d586495e78d3396 (patch)
tree253c40794a710b3b2fec9dfeb09f6f177bc2052c /include/configs
parent372d7fa1bf23a33066a8a88b6fb01ea931ae1b91 (diff)
am33xx: Correct and expand comments on CONFIG_SPL_MAX_SIZE
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>
Diffstat (limited to 'include/configs')
-rw-r--r--include/configs/ti_am335x_common.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/include/configs/ti_am335x_common.h b/include/configs/ti_am335x_common.h
index fd3ffab015..0eae9c8105 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
/*