diff options
| author | Yen Lin <yelin@nvidia.com> | 2015-05-07 12:28:43 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-07-23 16:44:40 +0200 |
| commit | c2eae1a4f961da7cdba0c68185b503b1600d1f74 (patch) | |
| tree | f0e0d2eb2d9c9e322e054e3debf7a8a4baf356f3 /src | |
| parent | a501a8f27fb1f5c2ede77191831628d9857e5ef0 (diff) | |
t210: Enable WRAP to INCR burst type conversion in MSELECT
Enable WRAP to INCR burst type conversion in MSELECT.
MSELECT CONFIG register can only be accessed by CPU. So do
it in ramstage when CPU is started.
BUG=None
BRANCH=None
TEST=tested on Smaug, still boot to kernel
Change-Id: Iee05531c45e566f47af24870be6068247c2d9a00
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 21d9e4d3a8827f7bba57c03ca36b702aaba1ce20
Original-Change-Id: I6a241455b28f24b8756ad09bf7605a2e7e52af57
Original-Signed-off-by: Yen Lin <yelin@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/282418
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/11040
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/nvidia/tegra210/include/soc/addressmap.h | 1 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra210/ramstage.c | 22 |
2 files changed, 23 insertions, 0 deletions
diff --git a/src/soc/nvidia/tegra210/include/soc/addressmap.h b/src/soc/nvidia/tegra210/include/soc/addressmap.h index 66888c6a69..c3af00c0b2 100644 --- a/src/soc/nvidia/tegra210/include/soc/addressmap.h +++ b/src/soc/nvidia/tegra210/include/soc/addressmap.h @@ -35,6 +35,7 @@ enum { TEGRA_ARM_PERIPHBASE = 0x50040000, TEGRA_GICD_BASE = 0x50041000, TEGRA_GICC_BASE = 0x50042000, + TEGRA_MSELECT_CONFIG = 0x50060000, TEGRA_ARM_DISPLAYA = 0x54200000, TEGRA_ARM_DISPLAYB = 0x54240000, TEGRA_DSIA_BASE = 0x54300000, diff --git a/src/soc/nvidia/tegra210/ramstage.c b/src/soc/nvidia/tegra210/ramstage.c index 7838c69ab9..f37c8179c6 100644 --- a/src/soc/nvidia/tegra210/ramstage.c +++ b/src/soc/nvidia/tegra210/ramstage.c @@ -31,8 +31,30 @@ void arm64_arch_timer_init(void) set_cntfrq(freq); } +static void mselect_enable_wrap(void) +{ + uint32_t reg; + +#define ERR_RESP_EN_SLAVE1 (0x1 << 24) +#define ERR_RESP_EN_SLAVE2 (0x1 << 25) +#define WRAP_TO_INCR_SLAVE0 (0x1 << 27) +#define WRAP_TO_INCR_SLAVE1 (0x1 << 28) +#define WRAP_TO_INCR_SLAVE2 (0x1 << 29) + + reg = read32((void *)TEGRA_MSELECT_CONFIG); + /* Disable error mechanism */ + reg &= ~(ERR_RESP_EN_SLAVE1 | ERR_RESP_EN_SLAVE2); + /* Enable WRAP type conversion */ + reg |= (WRAP_TO_INCR_SLAVE0 | WRAP_TO_INCR_SLAVE1 | + WRAP_TO_INCR_SLAVE2); + write32((void *)TEGRA_MSELECT_CONFIG, reg); +} + void arm64_soc_init(void) { + /* Enable WRAP to INCR burst type conversion in MSELECT */ + mselect_enable_wrap(); + trustzone_region_init(); tegra210_mmu_init(); |