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>

1 files changed, 202 insertions, 0 deletions

diff --git a/target/linux/at91/patches-5.10/112-clk-at91-Fix-the-declaration-of-the-clocks.patch b/target/linux/at91/patches-5.10/112-clk-at91-Fix-the-declaration-of-the-clocks.patch
new file mode 100644
index 0000000000..42d4769354
--- /dev/null
+++ b/target/linux/at91/patches-5.10/112-clk-at91-Fix-the-declaration-of-the-clocks.patch
@@ -0,0 +1,202 @@
+From 5a25e2437af0db535b17da352fb16680a8dfdeda Mon Sep 17 00:00:00 2001
+From: Tudor Ambarus <tudor.ambarus@microchip.com>
+Date: Wed, 3 Feb 2021 17:43:32 +0200
+Subject: [PATCH 112/247] clk: at91: Fix the declaration of the clocks
+
+These are all "early clocks" that require initialization just at
+of_clk_init() time. Use CLK_OF_DECLARE() to declare them.
+
+This also fixes a problem that was spotted when fw_devlink was
+set to 'on' by default: the boards failed to boot. The reason is
+that CLK_OF_DECLARE_DRIVER() clears the OF_POPULATED and causes
+the consumers of the clock to be postponed by fw_devlink until
+the second initialization routine of the clock has been completed.
+One of the consumers of the clock is the timer, which is used as a
+clocksource, and needs the clock initialized early. Postponing the
+timers caused the fail at boot.
+
+Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
+Link: https://lore.kernel.org/r/20210203154332.470587-1-tudor.ambarus@microchip.com
+Acked-by: Saravana Kannan <saravanak@google.com>
+Tested-by: Eugen Hristev <eugen.hristev@microchip.com>
+Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
+Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
+Signed-off-by: Stephen Boyd <sboyd@kernel.org>
+---
+ drivers/clk/at91/at91rm9200.c  |  3 +--
+ drivers/clk/at91/at91sam9260.c | 16 ++++++++--------
+ drivers/clk/at91/at91sam9g45.c |  3 +--
+ drivers/clk/at91/at91sam9n12.c |  3 +--
+ drivers/clk/at91/at91sam9rl.c  |  3 ++-
+ drivers/clk/at91/at91sam9x5.c  | 20 ++++++++++----------
+ drivers/clk/at91/sama5d2.c     |  3 ++-
+ drivers/clk/at91/sama5d3.c     |  2 +-
+ drivers/clk/at91/sama5d4.c     |  3 ++-
+ 9 files changed, 28 insertions(+), 28 deletions(-)
+
+diff --git a/drivers/clk/at91/at91rm9200.c b/drivers/clk/at91/at91rm9200.c
+index 0fad1009f315..428a6f4b9ebc 100644
+--- a/drivers/clk/at91/at91rm9200.c
++++ b/drivers/clk/at91/at91rm9200.c
+@@ -215,5 +215,4 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
+  * deferring properly. Once this is fixed, this can be switched to a platform
+  * driver.
+  */
+-CLK_OF_DECLARE_DRIVER(at91rm9200_pmc, "atmel,at91rm9200-pmc",
+-		      at91rm9200_pmc_setup);
++CLK_OF_DECLARE(at91rm9200_pmc, "atmel,at91rm9200-pmc", at91rm9200_pmc_setup);
+diff --git a/drivers/clk/at91/at91sam9260.c b/drivers/clk/at91/at91sam9260.c
+index ceb5495f723a..b29843bea278 100644
+--- a/drivers/clk/at91/at91sam9260.c
++++ b/drivers/clk/at91/at91sam9260.c
+@@ -491,26 +491,26 @@ static void __init at91sam9260_pmc_setup(struct device_node *np)
+ {
+ 	at91sam926x_pmc_setup(np, &at91sam9260_data);
+ }
+-CLK_OF_DECLARE_DRIVER(at91sam9260_pmc, "atmel,at91sam9260-pmc",
+-		      at91sam9260_pmc_setup);
++
++CLK_OF_DECLARE(at91sam9260_pmc, "atmel,at91sam9260-pmc", at91sam9260_pmc_setup);
+ 
+ static void __init at91sam9261_pmc_setup(struct device_node *np)
+ {
+ 	at91sam926x_pmc_setup(np, &at91sam9261_data);
+ }
+-CLK_OF_DECLARE_DRIVER(at91sam9261_pmc, "atmel,at91sam9261-pmc",
+-		      at91sam9261_pmc_setup);
++
++CLK_OF_DECLARE(at91sam9261_pmc, "atmel,at91sam9261-pmc", at91sam9261_pmc_setup);
+ 
+ static void __init at91sam9263_pmc_setup(struct device_node *np)
+ {
+ 	at91sam926x_pmc_setup(np, &at91sam9263_data);
+ }
+-CLK_OF_DECLARE_DRIVER(at91sam9263_pmc, "atmel,at91sam9263-pmc",
+-		      at91sam9263_pmc_setup);
++
++CLK_OF_DECLARE(at91sam9263_pmc, "atmel,at91sam9263-pmc", at91sam9263_pmc_setup);
+ 
+ static void __init at91sam9g20_pmc_setup(struct device_node *np)
+ {
+ 	at91sam926x_pmc_setup(np, &at91sam9g20_data);
+ }
+-CLK_OF_DECLARE_DRIVER(at91sam9g20_pmc, "atmel,at91sam9g20-pmc",
+-		      at91sam9g20_pmc_setup);
++
++CLK_OF_DECLARE(at91sam9g20_pmc, "atmel,at91sam9g20-pmc", at91sam9g20_pmc_setup);
+diff --git a/drivers/clk/at91/at91sam9g45.c b/drivers/clk/at91/at91sam9g45.c
+index 0214333dedd3..15da0dfe3ef2 100644
+--- a/drivers/clk/at91/at91sam9g45.c
++++ b/drivers/clk/at91/at91sam9g45.c
+@@ -228,5 +228,4 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
+  * The TCB is used as the clocksource so its clock is needed early. This means
+  * this can't be a platform driver.
+  */
+-CLK_OF_DECLARE_DRIVER(at91sam9g45_pmc, "atmel,at91sam9g45-pmc",
+-		      at91sam9g45_pmc_setup);
++CLK_OF_DECLARE(at91sam9g45_pmc, "atmel,at91sam9g45-pmc", at91sam9g45_pmc_setup);
+diff --git a/drivers/clk/at91/at91sam9n12.c b/drivers/clk/at91/at91sam9n12.c
+index f9db5316a7f1..7fe435f4b46b 100644
+--- a/drivers/clk/at91/at91sam9n12.c
++++ b/drivers/clk/at91/at91sam9n12.c
+@@ -255,5 +255,4 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
+  * The TCB is used as the clocksource so its clock is needed early. This means
+  * this can't be a platform driver.
+  */
+-CLK_OF_DECLARE_DRIVER(at91sam9n12_pmc, "atmel,at91sam9n12-pmc",
+-		      at91sam9n12_pmc_setup);
++CLK_OF_DECLARE(at91sam9n12_pmc, "atmel,at91sam9n12-pmc", at91sam9n12_pmc_setup);
+diff --git a/drivers/clk/at91/at91sam9rl.c b/drivers/clk/at91/at91sam9rl.c
+index 66736e03cfef..ecbabf5162bd 100644
+--- a/drivers/clk/at91/at91sam9rl.c
++++ b/drivers/clk/at91/at91sam9rl.c
+@@ -186,4 +186,5 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
+ err_free:
+ 	kfree(at91sam9rl_pmc);
+ }
+-CLK_OF_DECLARE_DRIVER(at91sam9rl_pmc, "atmel,at91sam9rl-pmc", at91sam9rl_pmc_setup);
++
++CLK_OF_DECLARE(at91sam9rl_pmc, "atmel,at91sam9rl-pmc", at91sam9rl_pmc_setup);
+diff --git a/drivers/clk/at91/at91sam9x5.c b/drivers/clk/at91/at91sam9x5.c
+index 79b9d3667228..5cce48c64ea2 100644
+--- a/drivers/clk/at91/at91sam9x5.c
++++ b/drivers/clk/at91/at91sam9x5.c
+@@ -302,33 +302,33 @@ static void __init at91sam9g15_pmc_setup(struct device_node *np)
+ {
+ 	at91sam9x5_pmc_setup(np, at91sam9g15_periphck, true);
+ }
+-CLK_OF_DECLARE_DRIVER(at91sam9g15_pmc, "atmel,at91sam9g15-pmc",
+-		      at91sam9g15_pmc_setup);
++
++CLK_OF_DECLARE(at91sam9g15_pmc, "atmel,at91sam9g15-pmc", at91sam9g15_pmc_setup);
+ 
+ static void __init at91sam9g25_pmc_setup(struct device_node *np)
+ {
+ 	at91sam9x5_pmc_setup(np, at91sam9g25_periphck, false);
+ }
+-CLK_OF_DECLARE_DRIVER(at91sam9g25_pmc, "atmel,at91sam9g25-pmc",
+-		      at91sam9g25_pmc_setup);
++
++CLK_OF_DECLARE(at91sam9g25_pmc, "atmel,at91sam9g25-pmc", at91sam9g25_pmc_setup);
+ 
+ static void __init at91sam9g35_pmc_setup(struct device_node *np)
+ {
+ 	at91sam9x5_pmc_setup(np, at91sam9g35_periphck, true);
+ }
+-CLK_OF_DECLARE_DRIVER(at91sam9g35_pmc, "atmel,at91sam9g35-pmc",
+-		      at91sam9g35_pmc_setup);
++
++CLK_OF_DECLARE(at91sam9g35_pmc, "atmel,at91sam9g35-pmc", at91sam9g35_pmc_setup);
+ 
+ static void __init at91sam9x25_pmc_setup(struct device_node *np)
+ {
+ 	at91sam9x5_pmc_setup(np, at91sam9x25_periphck, false);
+ }
+-CLK_OF_DECLARE_DRIVER(at91sam9x25_pmc, "atmel,at91sam9x25-pmc",
+-		      at91sam9x25_pmc_setup);
++
++CLK_OF_DECLARE(at91sam9x25_pmc, "atmel,at91sam9x25-pmc", at91sam9x25_pmc_setup);
+ 
+ static void __init at91sam9x35_pmc_setup(struct device_node *np)
+ {
+ 	at91sam9x5_pmc_setup(np, at91sam9x35_periphck, true);
+ }
+-CLK_OF_DECLARE_DRIVER(at91sam9x35_pmc, "atmel,at91sam9x35-pmc",
+-		      at91sam9x35_pmc_setup);
++
++CLK_OF_DECLARE(at91sam9x35_pmc, "atmel,at91sam9x35-pmc", at91sam9x35_pmc_setup);
+diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
+index 9a5cbc7cd55a..3d1f78176c3e 100644
+--- a/drivers/clk/at91/sama5d2.c
++++ b/drivers/clk/at91/sama5d2.c
+@@ -372,4 +372,5 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
+ err_free:
+ 	kfree(sama5d2_pmc);
+ }
+-CLK_OF_DECLARE_DRIVER(sama5d2_pmc, "atmel,sama5d2-pmc", sama5d2_pmc_setup);
++
++CLK_OF_DECLARE(sama5d2_pmc, "atmel,sama5d2-pmc", sama5d2_pmc_setup);
+diff --git a/drivers/clk/at91/sama5d3.c b/drivers/clk/at91/sama5d3.c
+index 87009ee8effc..d376257807d2 100644
+--- a/drivers/clk/at91/sama5d3.c
++++ b/drivers/clk/at91/sama5d3.c
+@@ -255,4 +255,4 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
+  * The TCB is used as the clocksource so its clock is needed early. This means
+  * this can't be a platform driver.
+  */
+-CLK_OF_DECLARE_DRIVER(sama5d3_pmc, "atmel,sama5d3-pmc", sama5d3_pmc_setup);
++CLK_OF_DECLARE(sama5d3_pmc, "atmel,sama5d3-pmc", sama5d3_pmc_setup);
+diff --git a/drivers/clk/at91/sama5d4.c b/drivers/clk/at91/sama5d4.c
+index 57fff790188b..5cbaac68da44 100644
+--- a/drivers/clk/at91/sama5d4.c
++++ b/drivers/clk/at91/sama5d4.c
+@@ -286,4 +286,5 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
+ err_free:
+ 	kfree(sama5d4_pmc);
+ }
+-CLK_OF_DECLARE_DRIVER(sama5d4_pmc, "atmel,sama5d4-pmc", sama5d4_pmc_setup);
++
++CLK_OF_DECLARE(sama5d4_pmc, "atmel,sama5d4-pmc", sama5d4_pmc_setup);
+-- 
+2.32.0
+