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| author | Marek Vasut <marek.vasut+renesas@gmail.com> | 2019-07-09 01:46:35 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2019-07-23 13:38:17 +0200 |
| commit | b3db7be4e372609239fa3475dc440e283b6f3440 (patch) | |
| tree | bb8f0247284e6eb6773188978537aa2dea074fc5 | |
| parent | 3a8cd17d0e511746357ae1d6aed76e80726a0b0f (diff) | |
| download | u-boot-b3db7be4e372609239fa3475dc440e283b6f3440.tar.gz | |
ARM: renesas: Update Gen3 PCIe dma-ranges before 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 <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
| -rw-r--r-- | arch/arm/mach-rmobile/Kconfig | 1 | ||||
| -rw-r--r-- | board/renesas/rcar-common/common.c | 49 |
2 files changed, 50 insertions, 0 deletions
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 <common.h> +#include <dm.h> +#include <dm/uclass-internal.h> #include <asm/arch/rmobile.h> #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 |