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memory: tegra: Unify struct tegra_mc across SoC generations

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As another step towards unifying both the Tegra210 (and earlier) and
Tegra186 (and later) memory controller drivers, unify the structures
that are used to represent them.

Note that this comes at a slight space penalty since some fields are
not used on all generations, but the benefits of unifying the driver
outweigh the downsides.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20210602163302.120041-3-thierry.reding@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
This commit is contained in:
Thierry Reding
2021-06-02 18:32:52 +02:00
committed by Krzysztof Kozlowski
parent 4f1ac76e5e
commit e899993845
2 changed files with 852 additions and 447 deletions
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1281
drivers/memory/tegra/tegra186.c
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File diff suppressed because it is too large Load Diff

18
include/soc/tegra/mc.h
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@ -26,12 +26,20 @@ struct tegra_mc_timing {
struct tegra_mc_client {
unsigned int id;
const char *name;
unsigned int swgroup;
/*
* For Tegra210 and earlier, this is the SWGROUP ID used for IOVA translations in the
* Tegra SMMU, whereas on Tegra186 and later this is the ID used to override the ARM SMMU
* stream ID used for IOVA translations for the given memory client.
*/
union {
unsigned int swgroup;
unsigned int sid;
};
unsigned int fifo_size;
struct {
/* Tegra SMMU enable */
/* Tegra SMMU enable (Tegra210 and earlier) */
struct {
unsigned int reg;
unsigned int bit;
@ -44,6 +52,12 @@ struct tegra_mc_client {
unsigned int mask;
unsigned int def;
} la;
/* stream ID overrides (Tegra186 and later) */
struct {
unsigned int override;
unsigned int security;
} sid;
} regs;
};