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Fixes for v4.0 on the SoCFPGA platform:

Browse Source 
- Fix the SCU virtual mapping
 - Add misssing DMA channels for UART nodes
 - Fix a sporadic SMP error where CPU1 was not seeing its start address
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Merge tag 'socfpga_fixes_for_v4.0' of git://git.rocketboards.org/linux-socfpga-next into fixes

Pull "Fixes for v4.0 on the SoCFPGA platform" from Dinh Nguyen:

- Fix the SCU virtual mapping
- Add misssing DMA channels for UART nodes
- Fix a sporadic SMP error where CPU1 was not seeing its start address

* tag 'socfpga_fixes_for_v4.0' of git://git.rocketboards.org/linux-socfpga-next:
  ARM: socfpga: make sure socfpga_cpu1start_addr is properly flushed
  ARM: socfpga: fix uart DMA binding error
  ARM: socfpga: Correct SCU virtual mapping in socfpga
This commit is contained in:
Arnd Bergmann 2015-03-11 15:31:27 +01:00
commit 8c1134080e
3 changed files with 12 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/boot/dts/socfpga.dtsi
View File

@ -713,6 +713,9 @@
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&l4_sp_clk>;
dmas = <&pdma 28>,
<&pdma 29>;
dma-names = "tx", "rx";
};
uart1: serial1@ffc03000 {
@ -722,6 +725,9 @@
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&l4_sp_clk>;
dmas = <&pdma 30>,
<&pdma 31>;
dma-names = "tx", "rx";
};
rst: rstmgr@ffd05000 {

2
arch/arm/mach-socfpga/core.h
View File

@ -45,6 +45,6 @@ extern char secondary_trampoline, secondary_trampoline_end;
extern unsigned long socfpga_cpu1start_addr;
#define SOCFPGA_SCU_VIRT_BASE 0xfffec000
#define SOCFPGA_SCU_VIRT_BASE 0xfee00000
#endif

5
arch/arm/mach-socfpga/socfpga.c
View File

@ -23,6 +23,7 @@
#include <asm/hardware/cache-l2x0.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/cacheflush.h>
#include "core.h"
@ -73,6 +74,10 @@ void __init socfpga_sysmgr_init(void)
(u32 *) &socfpga_cpu1start_addr))
pr_err("SMP: Need cpu1-start-addr in device tree.\n");
/* Ensure that socfpga_cpu1start_addr is visible to other CPUs */
smp_wmb();
sync_cache_w(&socfpga_cpu1start_addr);
sys_manager_base_addr = of_iomap(np, 0);
np = of_find_compatible_node(NULL, NULL, "altr,rst-mgr");