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| author | Pali Rohár <pali@kernel.org> | 2022-03-02 12:47:52 +0100 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2022-05-02 07:28:25 +0200 |
| commit | d6ba5c4f922cbe596da13b295ffe10db35101fb4 (patch) | |
| tree | 20b3390718d0db536147e7fbc5d0603713f4264d /board/CZ.NIC | |
| parent | f4bf81b01351f4d8918ee9ab6855dcb33acd4db8 (diff) | |
| download | u-boot-d6ba5c4f922cbe596da13b295ffe10db35101fb4.tar.gz | |
arm: mvebu: turris_omnia: Provide env_sf_get_env_addr() function
BootROM maps SPI Flash to fixed address 0xD4000000 and this mapping is
active also when BootROM is executing binary kwbimage headers, which
includes also U-Boot SPL.
Therefore no initialization code is required to access SPI Flags from
U-Boot SPL. In proper U-Boot it is remapped to other location.
So in mvebu implementation of env_sf_get_env_addr() function returns
0xD4000000 when running in SPL and NULL when in proper U-Boot.
This change would allow to use U-Boot ENV in U-Boot SPL. Normally it is not
possible to read ENV because it is too big and U-Boot SPL does not have
such big malloc() pool to real all ENV variables.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Diffstat (limited to 'board/CZ.NIC')
| -rw-r--r-- | board/CZ.NIC/turris_omnia/turris_omnia.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c b/board/CZ.NIC/turris_omnia/turris_omnia.c index da2fee578c..28a3f2b825 100644 --- a/board/CZ.NIC/turris_omnia/turris_omnia.c +++ b/board/CZ.NIC/turris_omnia/turris_omnia.c @@ -236,6 +236,16 @@ static bool omnia_detect_sata(void) return stsword & MSATA_IND_STSBIT ? true : false; } +void *env_sf_get_env_addr(void) +{ + /* SPI Flash is mapped to address 0xD4000000 only in SPL */ +#ifdef CONFIG_SPL_BUILD + return (void *)0xD4000000 + CONFIG_ENV_OFFSET; +#else + return NULL; +#endif +} + int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count) { if (omnia_detect_sata()) { |