diff options
| author | Marek Vasut <[email protected]> | 2025-08-06 02:57:14 +0200 |
|---|---|---|
| committer | Marek Vasut <[email protected]> | 2025-08-17 14:41:23 +0200 |
| commit | 47148dfd8f7a70afa134723da7940f7c80b47329 (patch) | |
| tree | 7b2452c7bd560c1c0128f43d3a440808c5bf90aa | |
| parent | e394ef09bc7389089b410e81fb660ad6ce18223a (diff) | |
arm64: renesas: r8a779g3: Disable dual-rank DRAM on Retronix R-Car V4H ES2 Sparrow Hawk
The R-Car V4H SoC before rev.3.0 can not support dual-rank LPDDR5 DRAM.
This affects 16 GiB dual-rank DRAM configuration of Retronix R-Car V4H
Sparrow Hawk board. Fall back to 8 GiB single-rank DRAM configuration
on such systems instead.
Signed-off-by: Marek Vasut <[email protected]>
| -rw-r--r-- | board/renesas/sparrowhawk/sparrowhawk.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/board/renesas/sparrowhawk/sparrowhawk.c b/board/renesas/sparrowhawk/sparrowhawk.c index 871dad8172a..1fd7a63d2fa 100644 --- a/board/renesas/sparrowhawk/sparrowhawk.c +++ b/board/renesas/sparrowhawk/sparrowhawk.c @@ -116,7 +116,7 @@ dbsc5_get_board_data(struct udevice *dev, const u32 modemr0) * Use MD[19] setting to discern 8 GiB and 16 GiB DRAM Sparrow Hawk * board variants from each other automatically. */ - if (modemr0 & BIT(19)) + if ((renesas_get_cpu_rev_integer() >= 3) && (modemr0 & BIT(19))) return &renesas_v4h_sparrowhawk_16g_5500_dbsc5_board_config; else return &renesas_v4h_sparrowhawk_8g_6400_dbsc5_board_config; @@ -244,7 +244,7 @@ void renesas_dram_init_banksize(void) int bank; /* 8 GiB device, do nothing. */ - if (!(modemr0 & BIT(19))) + if (!((renesas_get_cpu_rev_integer() >= 3) && (modemr0 & BIT(19)))) return; /* 16 GiB device, adjust memory map. */ |