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[86.49.110.70]) by smtp.gmail.com with ESMTPSA id u2sm1197196wmc.3.2019.07.08.17.52.35 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 08 Jul 2019 17:52:36 -0700 (PDT) From: Marek Vasut X-Google-Original-From: Marek Vasut To: u-boot@lists.denx.de Date: Tue, 9 Jul 2019 02:50:20 +0200 Message-Id: <20190709005020.4169-1-marek.vasut+renesas@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Cc: Nobuhiro Iwamatsu , Marek Vasut Subject: [U-Boot] [PATCH V2] ARM: renesas: Update Gen3 PCIe dma-ranges before boot X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 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" Update "dma-ranges" DT property of all PCIe controllers in the system with the up-to-date DRAM layout. This allows the PCIe controller take full advantage of all the available DRAM. Signed-off-by: Marek Vasut Cc: Nobuhiro Iwamatsu --- V2: - Drop support for older kernels - Mark memory as prefetchable --- arch/arm/mach-rmobile/Kconfig | 1 + board/renesas/rcar-common/common.c | 49 ++++++++++++++++++++++++++++++ 2 files changed, 50 insertions(+) diff --git a/arch/arm/mach-rmobile/Kconfig b/arch/arm/mach-rmobile/Kconfig index aafeb355ef..52ab891425 100644 --- a/arch/arm/mach-rmobile/Kconfig +++ b/arch/arm/mach-rmobile/Kconfig @@ -21,6 +21,7 @@ config RCAR_GEN3 imply CMD_GPT imply CMD_UUID imply CMD_MMC_SWRITE if MMC + imply OF_BOARD_SETUP if PCI imply SUPPORT_EMMC_RPMB if MMC imply SPL imply SPL_BOARD_INIT diff --git a/board/renesas/rcar-common/common.c b/board/renesas/rcar-common/common.c index 292867e496..37f8a46d7e 100644 --- a/board/renesas/rcar-common/common.c +++ b/board/renesas/rcar-common/common.c @@ -8,6 +8,8 @@ */ #include +#include +#include #include #ifdef CONFIG_RCAR_GEN3 @@ -46,4 +48,51 @@ int dram_init_banksize(void) return 0; } + +#if CONFIG_IS_ENABLED(OF_BOARD_SETUP) && CONFIG_IS_ENABLED(PCI) +int ft_board_setup(void *blob, bd_t *bd) +{ + struct udevice *dev; + struct uclass *uc; + fdt_addr_t regs_addr; + int i, off, ret; + + ret = uclass_get(UCLASS_PCI, &uc); + if (ret) + return ret; + + uclass_foreach_dev(dev, uc) { + struct pci_controller hose = { 0 }; + + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + if (hose.region_count == MAX_PCI_REGIONS) { + printf("maximum number of regions parsed, aborting\n"); + break; + } + + if (bd->bi_dram[i].size) { + pci_set_region(&hose.regions[hose.region_count++], + bd->bi_dram[i].start, + bd->bi_dram[i].start, + bd->bi_dram[i].size, + PCI_REGION_MEM | + PCI_REGION_PREFETCH | + PCI_REGION_SYS_MEMORY); + } + } + + regs_addr = devfdt_get_addr_index(dev, 0); + off = fdt_node_offset_by_compat_reg(blob, + "renesas,pcie-rcar-gen3", regs_addr); + if (off < 0) { + printf("Failed to find PCIe node@%llx\n", regs_addr); + return off; + } + + fdt_pci_dma_ranges(blob, off, &hose); + } + + return 0; +} +#endif #endif