diff options
author | Christian Daudt <csd@broadcom.com> | 2013-02-27 00:48:49 -0500 |
---|---|---|
committer | Christian Daudt <csd@broadcom.com> | 2013-04-09 12:18:13 -0400 |
commit | b8eb35fd594aa5b635e329d5c8efab8aaceb8619 (patch) | |
tree | 8c664f4d4daabc0a83435ef90cead2eeff751e5b /arch/arm/mach-bcm/board_bcm.c | |
parent | 07961ac7c0ee8b546658717034fe692fd12eefa9 (diff) |
ARM: bcm281xx: Add L2 cache enable code
- Adds a module to provide calls into secure monitor mode
- Uses this module to make secure monitor calls to enable L2 cache.
Updates from V1:
- Split DT portion into separate patch
- replace #ifdef-ed L2 code with "if".
- move init call to board init
Signed-off-by: Christian Daudt <csd@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-bcm/board_bcm.c')
-rw-r--r-- | arch/arm/mach-bcm/board_bcm.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/mach-bcm/board_bcm.c b/arch/arm/mach-bcm/board_bcm.c index f0f9abafad29..28be74e8273c 100644 --- a/arch/arm/mach-bcm/board_bcm.c +++ b/arch/arm/mach-bcm/board_bcm.c | |||
@@ -19,16 +19,39 @@ | |||
19 | 19 | ||
20 | #include <asm/mach/arch.h> | 20 | #include <asm/mach/arch.h> |
21 | #include <asm/mach/time.h> | 21 | #include <asm/mach/time.h> |
22 | #include <asm/hardware/cache-l2x0.h> | ||
22 | 23 | ||
23 | static void timer_init(void) | 24 | static void timer_init(void) |
24 | { | 25 | { |
25 | } | 26 | } |
26 | 27 | ||
27 | 28 | ||
29 | #include "bcm_kona_smc.h" | ||
30 | |||
31 | static int __init kona_l2_cache_init(void) | ||
32 | { | ||
33 | if (!IS_ENABLED(CONFIG_CACHE_L2X0)) | ||
34 | return 0; | ||
35 | |||
36 | bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0); | ||
37 | |||
38 | /* | ||
39 | * The aux_val and aux_mask have no effect since L2 cache is already | ||
40 | * enabled. Pass 0s for aux_val and 1s for aux_mask for default value. | ||
41 | */ | ||
42 | l2x0_of_init(0, ~0); | ||
43 | |||
44 | return 0; | ||
45 | } | ||
46 | |||
28 | static void __init board_init(void) | 47 | static void __init board_init(void) |
29 | { | 48 | { |
30 | of_platform_populate(NULL, of_default_bus_match_table, NULL, | 49 | of_platform_populate(NULL, of_default_bus_match_table, NULL, |
31 | &platform_bus); | 50 | &platform_bus); |
51 | |||
52 | bcm_kona_smc_init(); | ||
53 | |||
54 | kona_l2_cache_init(); | ||
32 | } | 55 | } |
33 | 56 | ||
34 | static const char * const bcm11351_dt_compat[] = { "bcm,bcm11351", NULL, }; | 57 | static const char * const bcm11351_dt_compat[] = { "bcm,bcm11351", NULL, }; |