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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>
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committed by
Anup Patel

parent
c10095132a
commit
2491242282
@@ -35,6 +35,7 @@ config PLATFORM_ANDES_AE350
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config PLATFORM_RENESAS_RZFIVE
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config PLATFORM_RENESAS_RZFIVE
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bool "Renesas RZ/Five support"
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bool "Renesas RZ/Five support"
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select ANDES45_PMA
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default n
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default n
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config PLATFORM_SIFIVE_FU540
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config PLATFORM_SIFIVE_FU540
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@@ -4,10 +4,30 @@
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*
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*
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*/
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*/
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#include <andes/andes45_pma.h>
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#include <platform_override.h>
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#include <platform_override.h>
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#include <sbi/sbi_domain.h>
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#include <sbi/sbi_domain.h>
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#include <sbi_utils/fdt/fdt_helper.h>
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#include <sbi_utils/fdt/fdt_helper.h>
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static const struct andes45_pma_region renesas_rzfive_pma_regions[] = {
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{
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.pa = 0x58000000,
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.size = 0x8000000,
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.flags = ANDES45_PMACFG_ETYP_NAPOT |
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ANDES45_PMACFG_MTYP_MEM_NON_CACHE_BUF,
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.dt_populate = true,
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.shared_dma = true,
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.no_map = true,
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.dma_default = true,
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},
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};
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static int renesas_rzfive_final_init(bool cold_boot, const struct fdt_match *match)
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{
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return andes45_pma_setup_regions(renesas_rzfive_pma_regions,
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array_size(renesas_rzfive_pma_regions));
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}
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int renesas_rzfive_early_init(bool cold_boot, const struct fdt_match *match)
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int renesas_rzfive_early_init(bool cold_boot, const struct fdt_match *match)
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{
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{
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/*
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/*
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@@ -34,4 +54,5 @@ static const struct fdt_match renesas_rzfive_match[] = {
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const struct platform_override renesas_rzfive = {
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const struct platform_override renesas_rzfive = {
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.match_table = renesas_rzfive_match,
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.match_table = renesas_rzfive_match,
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.early_init = renesas_rzfive_early_init,
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.early_init = renesas_rzfive_early_init,
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.final_init = renesas_rzfive_final_init,
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};
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};
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