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| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2023-02-14 00:51:10 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2023-02-27 09:06:06 +0300 |
| commit | 2491242282b4e3bb0617f41dfb667ca9a8241c0a (patch) | |
| tree | 83059e1648aa910c52ba3dcec9b20437ed1a8b87 | |
| parent | c10095132aca1711a485fb25865237e0e768341c (diff) | |
| download | opensbi-2491242282b4e3bb0617f41dfb667ca9a8241c0a.tar.xz | |
platform: generic: renesas: rzfive: Configure the PMA region
On the Renesas RZ/Five SoC by default we want to configure 128MiB of memory
ranging from 0x58000000 as a non-cacheable + bufferable region in the PMA
and populate this region as PMA reserve DT node with shared DMA pool and
no-map flags set so that Linux drivers requesting any DMA'able memory go
through this region.
PMA node passed to the above stack:
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
pma_resv0@58000000 {
compatible = "shared-dma-pool";
reg = <0x0 0x58000000 0x0 0x08000000>;
no-map;
linux,dma-default;
};
};
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Yu Chien Peter Lin <peterlin@andestech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
| -rw-r--r-- | platform/generic/Kconfig | 1 | ||||
| -rw-r--r-- | platform/generic/renesas/rzfive/rzfive.c | 21 |
2 files changed, 22 insertions, 0 deletions
diff --git a/platform/generic/Kconfig b/platform/generic/Kconfig index 39fb4e9..1f4f8e1 100644 --- a/platform/generic/Kconfig +++ b/platform/generic/Kconfig @@ -35,6 +35,7 @@ config PLATFORM_ANDES_AE350 config PLATFORM_RENESAS_RZFIVE bool "Renesas RZ/Five support" + select ANDES45_PMA default n config PLATFORM_SIFIVE_FU540 diff --git a/platform/generic/renesas/rzfive/rzfive.c b/platform/generic/renesas/rzfive/rzfive.c index ee9c9c4..4d71d0d 100644 --- a/platform/generic/renesas/rzfive/rzfive.c +++ b/platform/generic/renesas/rzfive/rzfive.c @@ -4,10 +4,30 @@ * */ +#include <andes/andes45_pma.h> #include <platform_override.h> #include <sbi/sbi_domain.h> #include <sbi_utils/fdt/fdt_helper.h> +static const struct andes45_pma_region renesas_rzfive_pma_regions[] = { + { + .pa = 0x58000000, + .size = 0x8000000, + .flags = ANDES45_PMACFG_ETYP_NAPOT | + ANDES45_PMACFG_MTYP_MEM_NON_CACHE_BUF, + .dt_populate = true, + .shared_dma = true, + .no_map = true, + .dma_default = true, + }, +}; + +static int renesas_rzfive_final_init(bool cold_boot, const struct fdt_match *match) +{ + return andes45_pma_setup_regions(renesas_rzfive_pma_regions, + array_size(renesas_rzfive_pma_regions)); +} + int renesas_rzfive_early_init(bool cold_boot, const struct fdt_match *match) { /* @@ -34,4 +54,5 @@ static const struct fdt_match renesas_rzfive_match[] = { const struct platform_override renesas_rzfive = { .match_table = renesas_rzfive_match, .early_init = renesas_rzfive_early_init, + .final_init = renesas_rzfive_final_init, }; |