diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2016-02-26 22:54:53 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2016-02-26 22:54:53 +0100 |
| commit | e7ada8dfd564d9fa518432a513994cc53e358fad (patch) | |
| tree | d287940ed960d538f76f51432f53da7e4b9dc36f /arch/arm | |
| parent | 8bba98a8c1527f1cc121776cf5fac97ac2d3089c (diff) | |
| parent | 8fff2f752f2c9d31414f83170157701b59aec4c1 (diff) | |
Merge tag 'zynq-soc-for-4.6' of https://github.com/Xilinx/linux-xlnx into next/soc
Merge "ARM: Xilinx Zynq patches for v4.6" from Michal Simek:
- SLCR early init
- Fix L2 cache data corruption
- Fix early printk uart setting
* tag 'zynq-soc-for-4.6' of https://github.com/Xilinx/linux-xlnx:
ARM: zynq: Move early printk virtual address to vmalloc area
ARM: zynq: address L2 cache data corruption
ARM: zynq: initialize slcr mapping earlier
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/debug/zynq.S | 4 | ||||
| -rw-r--r-- | arch/arm/mach-zynq/common.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-zynq/slcr.c | 4 |
3 files changed, 7 insertions, 4 deletions
diff --git a/arch/arm/include/debug/zynq.S b/arch/arm/include/debug/zynq.S index de86b9247564..060cb5b49bfd 100644 --- a/arch/arm/include/debug/zynq.S +++ b/arch/arm/include/debug/zynq.S @@ -20,9 +20,9 @@ #define UART_SR_TXEMPTY 0x00000008 /* TX FIFO empty */ #define UART0_PHYS 0xE0000000 -#define UART0_VIRT 0xF0000000 +#define UART0_VIRT 0xF0800000 #define UART1_PHYS 0xE0001000 -#define UART1_VIRT 0xF0001000 +#define UART1_VIRT 0xF0801000 #if IS_ENABLED(CONFIG_DEBUG_ZYNQ_UART1) # define LL_UART_PADDR UART1_PHYS diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c index 6f39d03cc27e..860ffb663f02 100644 --- a/arch/arm/mach-zynq/common.c +++ b/arch/arm/mach-zynq/common.c @@ -150,8 +150,6 @@ out: static void __init zynq_timer_init(void) { - zynq_early_slcr_init(); - zynq_clock_init(); of_clk_init(NULL); clocksource_probe(); @@ -186,6 +184,7 @@ static void __init zynq_map_io(void) static void __init zynq_irq_init(void) { + zynq_early_slcr_init(); irqchip_init(); } diff --git a/arch/arm/mach-zynq/slcr.c b/arch/arm/mach-zynq/slcr.c index 26320ebf3493..f0292a30e6f6 100644 --- a/arch/arm/mach-zynq/slcr.c +++ b/arch/arm/mach-zynq/slcr.c @@ -28,6 +28,7 @@ #define SLCR_A9_CPU_RST_CTRL_OFFSET 0x244 /* CPU Software Reset Control */ #define SLCR_REBOOT_STATUS_OFFSET 0x258 /* PS Reboot Status */ #define SLCR_PSS_IDCODE 0x530 /* PS IDCODE */ +#define SLCR_L2C_RAM 0xA1C /* L2C_RAM in AR#54190 */ #define SLCR_UNLOCK_MAGIC 0xDF0D #define SLCR_A9_CPU_CLKSTOP 0x10 @@ -227,6 +228,9 @@ int __init zynq_early_slcr_init(void) /* unlock the SLCR so that registers can be changed */ zynq_slcr_unlock(); + /* See AR#54190 design advisory */ + regmap_update_bits(zynq_slcr_regmap, SLCR_L2C_RAM, 0x70707, 0x20202); + register_restart_handler(&zynq_slcr_restart_nb); pr_info("%s mapped to %p\n", np->name, zynq_slcr_base); |