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Mon, 27 Apr 2020 04:00:57 -0700 (PDT) Received: from rayagonda.dhcp.broadcom.net ([192.19.234.250]) by smtp.gmail.com with ESMTPSA id u3sm11996430pfn.217.2020.04.27.04.00.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Apr 2020 04:00:57 -0700 (PDT) From: Rayagonda Kokatanur To: u-boot@lists.denx.de, Simon Glass , Kever Yang , Michal Simek , Jagan Teki , Marek Vasut , Fabio Estevam , Baruch Siach , Troy Kisky , Josip Kelecic , Priyanka Jain , Biwen Li , Jason Li , Philippe Reynes , Eddie James , Heinrich Schuchardt , Sam Protsenko , Lukasz Majewski , Miquel Raynal , Ramon Fried , Anup Patel , AKASHI Takahiro , Patrice Chotard , Eugeniu Rosca , Joe Hershberger , Simon Goldschmidt , Boris Brezillon , Simon South , Andy Shevchenko , Marek Bykowski , Lokesh Vutla , Patrick Delaunay , Rajesh Ravi , Abhishek Shah , Vladimir Olovyannikov , Bharat Kumar Reddy Gooty , Srinath Mannam , Pramod Kumar , Ray Jui , Vikas Gupta , Trac Hoang , Corneliu Doban , Sheetal Tigadoli Cc: Rayagonda Kokatanur Subject: [PATCH v1 29/49] board: ns3: limit U-boot relocation within 16MB memory Date: Mon, 27 Apr 2020 16:21:47 +0530 Message-Id: <20200427105207.5659-30-rayagonda.kokatanur@broadcom.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200427105207.5659-1-rayagonda.kokatanur@broadcom.com> References: <20200427105207.5659-1-rayagonda.kokatanur@broadcom.com> X-Mailman-Approved-At: Mon, 27 Apr 2020 14:18:25 +0200 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.2 at phobos.denx.de X-Virus-Status: Clean From: Bharat Kumar Reddy Gooty By default re-location happens to higher address of DDR, i.e, DDR start + DDR size. Limit re-location to happen within 16MB memory, start 0xFF00_0000 and end 0x1_0000_0000 Signed-off-by: Bharat Kumar Reddy Gooty Signed-off-by: Rayagonda Kokatanur --- board/broadcom/bcmns3/ns3.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/board/broadcom/bcmns3/ns3.c b/board/broadcom/bcmns3/ns3.c index c4e36a61d2..e8f1d1b199 100644 --- a/board/broadcom/bcmns3/ns3.c +++ b/board/broadcom/bcmns3/ns3.c @@ -124,6 +124,11 @@ static void mem_info_parse_fixup(void *fdt) int board_init(void) { + /* Setup memory using "memory" node from DTB */ + if (fdtdec_setup_mem_size_base() != 0) + return -EINVAL; + fdtdec_setup_memory_banksize(); + if (bl33_info->version != BL33_INFO_VERSION) printf("*** warning: ATF BL31 and u-boot not in sync! ***\n"); @@ -144,19 +149,30 @@ int board_late_init(void) int dram_init(void) { - if (fdtdec_setup_mem_size_base() != 0) - return -EINVAL; + /* + * Mark ram base as the last 16MB of 2GB DDR, which is 0xFF00_0000. + * So that relocation happens with in the last 16MB memory. + */ + gd->ram_base = (phys_size_t)(BCM_NS3_MEM_END - SZ_16M); + gd->ram_size = (unsigned long)SZ_16M; return 0; } int dram_init_banksize(void) { - fdtdec_setup_memory_banksize(); + gd->bd->bi_dram[0].start = (BCM_NS3_MEM_END - SZ_16M); + gd->bd->bi_dram[0].size = SZ_16M; return 0; } +/* Limit RAM used by U-Boot to the DDR first bank End region */ +ulong board_get_usable_ram_top(ulong total_size) +{ + return BCM_NS3_MEM_END; +} + void reset_cpu(ulong level) { #define L3_RESET 30