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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-10 07:21:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-10 07:21:16 -0700
commitf5b8fcb48b9eb1a02f6a3a679da913f6c467527c (patch)
tree4e67c46f5ebc0acf8c29ce01c711b84352a617f3 /arch/blackfin/kernel
parenta1f0bcccffe508b36f8eb0bd39771d4bedc683a8 (diff)
parent5ae89ee043ce96e3790e6c75f3807c8e37d98634 (diff)
Merge tag 'for-linus' of git://github.com/realmz/blackfin-linux
Pull blackfin updates from Steven Miao. * tag 'for-linus' of git://github.com/realmz/blackfin-linux: bfin cache: dcplb map: add 16M dcplb map for BF60x blackfin: smp: fix smp build after drop asm/system.h blackfin: fix bootup core clock and system clock display Platform Nand: Set the GPIO for NAND read as input blackfin: rename vmImage to uImage after we move to buildroot blackfin: twi: Remove bogus #endif bf609: rsi: Add bf609 rsi MMR macro and board platform data. blackfin: dmc: Improve DDR2 write through in DMC effict controller.
Diffstat (limited to 'arch/blackfin/kernel')
-rw-r--r--arch/blackfin/kernel/cplb-nompu/cplbinit.c16
-rw-r--r--arch/blackfin/kernel/cplb-nompu/cplbmgr.c27
-rw-r--r--arch/blackfin/kernel/cplbinfo.c9
-rw-r--r--arch/blackfin/kernel/setup.c2
4 files changed, 44 insertions, 10 deletions
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index 34e96ce02aa9..b49a53b583d5 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -30,6 +30,7 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
{
int i_d, i_i;
unsigned long addr;
+ unsigned long cplb_pageflags, cplb_pagesize;
struct cplb_entry *d_tbl = dcplb_tbl[cpu];
struct cplb_entry *i_tbl = icplb_tbl[cpu];
@@ -49,11 +50,20 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
/* Cover kernel memory with 4M pages. */
addr = 0;
- for (; addr < memory_start; addr += 4 * 1024 * 1024) {
+#ifdef PAGE_SIZE_16MB
+ cplb_pageflags = PAGE_SIZE_16MB;
+ cplb_pagesize = SIZE_16M;
+#else
+ cplb_pageflags = PAGE_SIZE_4MB;
+ cplb_pagesize = SIZE_4M;
+#endif
+
+
+ for (; addr < memory_start; addr += cplb_pagesize) {
d_tbl[i_d].addr = addr;
- d_tbl[i_d++].data = SDRAM_DGENERIC | PAGE_SIZE_4MB;
+ d_tbl[i_d++].data = SDRAM_DGENERIC | cplb_pageflags;
i_tbl[i_i].addr = addr;
- i_tbl[i_i++].data = SDRAM_IGENERIC | PAGE_SIZE_4MB;
+ i_tbl[i_i++].data = SDRAM_IGENERIC | cplb_pageflags;
}
#ifdef CONFIG_ROMKERNEL
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbmgr.c b/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
index e854f9066cbd..79cc0f6dcdd5 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
@@ -145,7 +145,7 @@ MGR_ATTR static int dcplb_miss(int cpu)
unsigned long addr = bfin_read_DCPLB_FAULT_ADDR();
int status = bfin_read_DCPLB_STATUS();
int idx;
- unsigned long d_data, base, addr1, eaddr;
+ unsigned long d_data, base, addr1, eaddr, cplb_pagesize, cplb_pageflags;
nr_dcplb_miss[cpu]++;
if (unlikely(status & FAULT_USERSUPV))
@@ -167,18 +167,37 @@ MGR_ATTR static int dcplb_miss(int cpu)
if (unlikely(d_data == 0))
return CPLB_NO_ADDR_MATCH;
- addr1 = addr & ~(SIZE_4M - 1);
addr &= ~(SIZE_1M - 1);
d_data |= PAGE_SIZE_1MB;
- if (addr1 >= base && (addr1 + SIZE_4M) <= eaddr) {
+
+ /* BF60x support large than 4M CPLB page size */
+#ifdef PAGE_SIZE_16MB
+ cplb_pageflags = PAGE_SIZE_16MB;
+ cplb_pagesize = SIZE_16M;
+#else
+ cplb_pageflags = PAGE_SIZE_4MB;
+ cplb_pagesize = SIZE_4M;
+#endif
+
+find_pagesize:
+ addr1 = addr & ~(cplb_pagesize - 1);
+ if (addr1 >= base && (addr1 + cplb_pagesize) <= eaddr) {
/*
* This works because
* (PAGE_SIZE_4MB & PAGE_SIZE_1MB) == PAGE_SIZE_1MB.
*/
- d_data |= PAGE_SIZE_4MB;
+ d_data |= cplb_pageflags;
addr = addr1;
+ goto found_pagesize;
+ } else {
+ if (cplb_pagesize > SIZE_4M) {
+ cplb_pageflags = PAGE_SIZE_4MB;
+ cplb_pagesize = SIZE_4M;
+ goto find_pagesize;
+ }
}
+found_pagesize:
#ifdef CONFIG_BF60x
if ((addr >= ASYNC_BANK0_BASE)
&& (addr < ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE))
diff --git a/arch/blackfin/kernel/cplbinfo.c b/arch/blackfin/kernel/cplbinfo.c
index 404045dcc5e4..5b80d59e66e5 100644
--- a/arch/blackfin/kernel/cplbinfo.c
+++ b/arch/blackfin/kernel/cplbinfo.c
@@ -17,8 +17,13 @@
#include <asm/cplbinit.h>
#include <asm/blackfin.h>
-static char const page_strtbl[][3] = { "1K", "4K", "1M", "4M" };
-#define page(flags) (((flags) & 0x30000) >> 16)
+static char const page_strtbl[][4] = {
+ "1K", "4K", "1M", "4M",
+#ifdef CONFIG_BF60x
+ "16K", "64K", "16M", "64M",
+#endif
+};
+#define page(flags) (((flags) & 0x70000) >> 16)
#define strpage(flags) page_strtbl[page(flags)]
struct cplbinfo_data {
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index fb96e607adcf..107b306b06f1 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -1314,7 +1314,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
seq_printf(m, "(Compiled for Rev %d)", bfin_compiled_revid());
}
- seq_printf(m, "\ncpu MHz\t\t: %lu.%03lu/%lu.%03lu\n",
+ seq_printf(m, "\ncpu MHz\t\t: %lu.%06lu/%lu.%06lu\n",
cclk/1000000, cclk%1000000,
sclk/1000000, sclk%1000000);
seq_printf(m, "bogomips\t: %lu.%02lu\n"