From mboxrd@z Thu Jan 1 00:00:00 1970 From: York Sun Date: Mon, 10 Feb 2014 14:18:24 -0800 Subject: [U-Boot] Fwd: [PATCH] arm/lib: Add get_effective_memsize() to board.c In-Reply-To: <1392069859-24805-1-git-send-email-yorksun@freescale.com> References: <1392069859-24805-1-git-send-email-yorksun@freescale.com> Message-ID: <52F95030.2020705@freescale.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de -------- Original Message -------- Subject: [PATCH] arm/lib: Add get_effective_memsize() to board.c Date: Mon, 10 Feb 2014 14:04:19 -0800 From: York Sun To: CC: , York Sun This function has been around for powerpc. It is used for systems with memory more than CONFIG_MAX_MEM_MAPPED. In case of non-contiguous memory, this feature can limit U-boot to one block without going over the limit. Signed-off-by: York Sun --- arch/arm/lib/board.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index b770e25..b31c8ff 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -263,6 +263,24 @@ init_fnc_t *init_sequence[] = { NULL, }; +phys_size_t get_effective_memsize(void) +{ +#ifndef CONFIG_VERY_BIG_RAM + return gd->ram_size; +#else + /* limit stack to what we can reasonable map */ + return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ? + CONFIG_MAX_MEM_MAPPED : gd->ram_size); +#endif +} + +#ifdef CONFIG_LOGBUFFER +unsigned long logbuffer_base(void) +{ + return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN; +} +#endif + void board_init_f(ulong bootflag) { bd_t *bd; @@ -322,7 +340,7 @@ void board_init_f(ulong bootflag) gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE; #endif - addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size; + addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize(); #ifdef CONFIG_LOGBUFFER #ifndef CONFIG_ALT_LB_ADDR -- 1.7.9.5