diff options
| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2022-02-04 15:57:50 +0200 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2022-02-24 19:05:28 +0100 |
| commit | e58cd453d58b20c6a6f34d3591640aa19aa14d25 (patch) | |
| tree | a4fef5f5d79575a7a60b516482ee114c1dbc932e /target/linux/at91/patches-5.10/238-clk-at91-clk-master-improve-readability-by-using-loc.patch | |
| parent | 3ed992a99630457f660761ce199e3d2a00f06168 (diff) | |
| download | upstream-e58cd453d58b20c6a6f34d3591640aa19aa14d25.tar.gz upstream-e58cd453d58b20c6a6f34d3591640aa19aa14d25.tar.bz2 upstream-e58cd453d58b20c6a6f34d3591640aa19aa14d25.zip | |
at91: add kernel support for sama7g5 soc
Add kernel support for SAMA7G5 by back-porting mainline kernel patches.
Among SAMA7G5 features could be remembered:
- ARM Cortex-A7
- double data rate multi-port dynamic RAM controller supporting DDR2,
DDR3, DDR3L, LPDDR2, LPDDR3 up to 533MHz
- peripherals for audio, video processing
- 1 gigabit + 1 megabit Ethernet controllers
- 6 CAN controllers
- trust zone support
- DVFS for CPU
- criptography IPs
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Diffstat (limited to 'target/linux/at91/patches-5.10/238-clk-at91-clk-master-improve-readability-by-using-loc.patch')
| -rw-r--r-- | target/linux/at91/patches-5.10/238-clk-at91-clk-master-improve-readability-by-using-loc.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/target/linux/at91/patches-5.10/238-clk-at91-clk-master-improve-readability-by-using-loc.patch b/target/linux/at91/patches-5.10/238-clk-at91-clk-master-improve-readability-by-using-loc.patch new file mode 100644 index 0000000000..df53d453f8 --- /dev/null +++ b/target/linux/at91/patches-5.10/238-clk-at91-clk-master-improve-readability-by-using-loc.patch @@ -0,0 +1,45 @@ +From 17b53ad1574cb5f41789993289d3d94f7a50f0ce Mon Sep 17 00:00:00 2001 +From: Claudiu Beznea <claudiu.beznea@microchip.com> +Date: Mon, 11 Oct 2021 14:27:09 +0300 +Subject: [PATCH 238/247] clk: at91: clk-master: improve readability by using + local variables + +Improve readability in clk_sama7g5_master_set() by using local +variables. + +Suggested-by: Nicolas Ferre <nicolas.ferre@microchip.com> +Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> +Link: https://lore.kernel.org/r/20211011112719.3951784-6-claudiu.beznea@microchip.com +Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> +Signed-off-by: Stephen Boyd <sboyd@kernel.org> +--- + drivers/clk/at91/clk-master.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c +index 88f7af1bfff6..9a2c8e64cacf 100644 +--- a/drivers/clk/at91/clk-master.c ++++ b/drivers/clk/at91/clk-master.c +@@ -680,6 +680,8 @@ static void clk_sama7g5_master_set(struct clk_master *master, + unsigned long flags; + unsigned int val, cparent; + unsigned int enable = status ? AT91_PMC_MCR_V2_EN : 0; ++ unsigned int parent = master->parent << PMC_MCR_CSS_SHIFT; ++ unsigned int div = master->div << MASTER_DIV_SHIFT; + + spin_lock_irqsave(master->lock, flags); + +@@ -689,9 +691,7 @@ static void clk_sama7g5_master_set(struct clk_master *master, + regmap_update_bits(master->regmap, AT91_PMC_MCR_V2, + enable | AT91_PMC_MCR_V2_CSS | AT91_PMC_MCR_V2_DIV | + AT91_PMC_MCR_V2_CMD | AT91_PMC_MCR_V2_ID_MSK, +- enable | (master->parent << PMC_MCR_CSS_SHIFT) | +- (master->div << MASTER_DIV_SHIFT) | +- AT91_PMC_MCR_V2_CMD | ++ enable | parent | div | AT91_PMC_MCR_V2_CMD | + AT91_PMC_MCR_V2_ID(master->id)); + + cparent = (val & AT91_PMC_MCR_V2_CSS) >> PMC_MCR_CSS_SHIFT; +-- +2.32.0 + |