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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-09-12 17:14:33 +0200
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-09-12 17:14:33 +0200
commit25a765b7f05cb8460fa01b54568894b20e184862 (patch)
tree0b56db57b4d9f912393ab303c269e0fe6cdf8635 /arch/blackfin/kernel
parentxen/privcmd: return -EFAULT on error (diff)
parentx86: Document x86_init.paging.pagetable_init() (diff)
downloadlinux-25a765b7f05cb8460fa01b54568894b20e184862.tar.xz
linux-25a765b7f05cb8460fa01b54568894b20e184862.zip
Merge branch 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into stable/for-linus-3.7
* 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (9690 commits) x86: Document x86_init.paging.pagetable_init() x86: xen: Cleanup and remove x86_init.paging.pagetable_setup_done() x86: Move paging_init() call to x86_init.paging.pagetable_init() x86: Rename pagetable_setup_start() to pagetable_init() x86: Remove base argument from x86_init.paging.pagetable_setup_start Linux 3.6-rc5 HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured Remove user-triggerable BUG from mpol_to_str xen/pciback: Fix proper FLR steps. uml: fix compile error in deliver_alarm() dj: memory scribble in logi_dj Fix order of arguments to compat_put_time[spec|val] xen: Use correct masking in xen_swiotlb_alloc_coherent. xen: fix logical error in tlb flushing xen/p2m: Fix one-off error in checking the P2M tree directory. powerpc: Don't use __put_user() in patch_instruction powerpc: Make sure IPI handlers see data written by IPI senders powerpc: Restore correct DSCR in context switch powerpc: Fix DSCR inheritance in copy_thread() powerpc: Keep thread.dscr and thread.dscr_inherit in sync ...
Diffstat (limited to 'arch/blackfin/kernel')
-rw-r--r--arch/blackfin/kernel/Makefile1
-rw-r--r--arch/blackfin/kernel/bfin_dma.c4
-rw-r--r--arch/blackfin/kernel/cplb-nompu/cplbinit.c8
-rw-r--r--arch/blackfin/kernel/dma-mapping.c10
-rw-r--r--arch/blackfin/kernel/pwm.c100
-rw-r--r--arch/blackfin/kernel/setup.c1
6 files changed, 16 insertions, 108 deletions
diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile
index 08e6625106be..735f24e07425 100644
--- a/arch/blackfin/kernel/Makefile
+++ b/arch/blackfin/kernel/Makefile
@@ -21,7 +21,6 @@ obj-$(CONFIG_FUNCTION_TRACER) += ftrace-entry.o
obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
CFLAGS_REMOVE_ftrace.o = -pg
-obj-$(CONFIG_HAVE_PWM) += pwm.o
obj-$(CONFIG_IPIPE) += ipipe.o
obj-$(CONFIG_BFIN_GPTIMERS) += gptimers.o
obj-$(CONFIG_CPLB_INFO) += cplbinfo.o
diff --git a/arch/blackfin/kernel/bfin_dma.c b/arch/blackfin/kernel/bfin_dma.c
index c166939ffb2b..4a32f2dd5ddc 100644
--- a/arch/blackfin/kernel/bfin_dma.c
+++ b/arch/blackfin/kernel/bfin_dma.c
@@ -45,7 +45,7 @@ static int __init blackfin_dma_init(void)
atomic_set(&dma_ch[i].chan_status, 0);
dma_ch[i].regs = dma_io_base_addr[i];
}
-#ifdef CH_MEM_STREAM3_SRC
+#if defined(CH_MEM_STREAM3_SRC) && defined(CONFIG_BF60x)
/* Mark MEMDMA Channel 3 as requested since we're using it internally */
request_dma(CH_MEM_STREAM3_DEST, "Blackfin dma_memcpy");
request_dma(CH_MEM_STREAM3_SRC, "Blackfin dma_memcpy");
@@ -361,7 +361,7 @@ void __init early_dma_memcpy_done(void)
__builtin_bfin_ssync();
}
-#ifdef CH_MEM_STREAM3_SRC
+#if defined(CH_MEM_STREAM3_SRC) && defined(CONFIG_BF60x)
#define bfin_read_MDMA_S_CONFIG bfin_read_MDMA_S3_CONFIG
#define bfin_write_MDMA_S_CONFIG bfin_write_MDMA_S3_CONFIG
#define bfin_write_MDMA_S_START_ADDR bfin_write_MDMA_S3_START_ADDR
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index 3e366dc2d6e1..34e96ce02aa9 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -58,12 +58,20 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
#ifdef CONFIG_ROMKERNEL
/* Cover kernel XIP flash area */
+#ifdef CONFIG_BF60x
+ addr = CONFIG_ROM_BASE & ~(16 * 1024 * 1024 - 1);
+ d_tbl[i_d].addr = addr;
+ d_tbl[i_d++].data = SDRAM_DGENERIC | PAGE_SIZE_16MB;
+ i_tbl[i_i].addr = addr;
+ i_tbl[i_i++].data = SDRAM_IGENERIC | PAGE_SIZE_16MB;
+#else
addr = CONFIG_ROM_BASE & ~(4 * 1024 * 1024 - 1);
d_tbl[i_d].addr = addr;
d_tbl[i_d++].data = SDRAM_DGENERIC | PAGE_SIZE_4MB;
i_tbl[i_i].addr = addr;
i_tbl[i_i++].data = SDRAM_IGENERIC | PAGE_SIZE_4MB;
#endif
+#endif
/* Cover L1 memory. One 4M area for code and data each is enough. */
if (cpu == 0) {
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index f0d1118f1825..e7be6532d6a0 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -122,12 +122,13 @@ void __dma_sync(dma_addr_t addr, size_t size,
EXPORT_SYMBOL(__dma_sync);
int
-dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+dma_map_sg(struct device *dev, struct scatterlist *sg_list, int nents,
enum dma_data_direction direction)
{
+ struct scatterlist *sg;
int i;
- for (i = 0; i < nents; i++, sg++) {
+ for_each_sg(sg_list, sg, nents, i) {
sg->dma_address = (dma_addr_t) sg_virt(sg);
__dma_sync(sg_dma_address(sg), sg_dma_len(sg), direction);
}
@@ -136,12 +137,13 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
}
EXPORT_SYMBOL(dma_map_sg);
-void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg_list,
int nelems, enum dma_data_direction direction)
{
+ struct scatterlist *sg;
int i;
- for (i = 0; i < nelems; i++, sg++) {
+ for_each_sg(sg_list, sg, nelems, i) {
sg->dma_address = (dma_addr_t) sg_virt(sg);
__dma_sync(sg_dma_address(sg), sg_dma_len(sg), direction);
}
diff --git a/arch/blackfin/kernel/pwm.c b/arch/blackfin/kernel/pwm.c
deleted file mode 100644
index 33f5942733bd..000000000000
--- a/arch/blackfin/kernel/pwm.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Blackfin Pulse Width Modulation (PWM) core
- *
- * Copyright (c) 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/module.h>
-#include <linux/pwm.h>
-#include <linux/slab.h>
-
-#include <asm/gptimers.h>
-#include <asm/portmux.h>
-
-struct pwm_device {
- unsigned id;
- unsigned short pin;
-};
-
-static const unsigned short pwm_to_gptimer_per[] = {
- P_TMR0, P_TMR1, P_TMR2, P_TMR3, P_TMR4, P_TMR5,
- P_TMR6, P_TMR7, P_TMR8, P_TMR9, P_TMR10, P_TMR11,
-};
-
-struct pwm_device *pwm_request(int pwm_id, const char *label)
-{
- struct pwm_device *pwm;
- int ret;
-
- /* XXX: pwm_id really should be unsigned */
- if (pwm_id < 0)
- return NULL;
-
- pwm = kzalloc(sizeof(*pwm), GFP_KERNEL);
- if (!pwm)
- return pwm;
-
- pwm->id = pwm_id;
- if (pwm->id >= ARRAY_SIZE(pwm_to_gptimer_per))
- goto err;
-
- pwm->pin = pwm_to_gptimer_per[pwm->id];
- ret = peripheral_request(pwm->pin, label);
- if (ret)
- goto err;
-
- return pwm;
- err:
- kfree(pwm);
- return NULL;
-}
-EXPORT_SYMBOL(pwm_request);
-
-void pwm_free(struct pwm_device *pwm)
-{
- peripheral_free(pwm->pin);
- kfree(pwm);
-}
-EXPORT_SYMBOL(pwm_free);
-
-int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
-{
- unsigned long period, duty;
- unsigned long long val;
-
- if (duty_ns < 0 || duty_ns > period_ns)
- return -EINVAL;
-
- val = (unsigned long long)get_sclk() * period_ns;
- do_div(val, NSEC_PER_SEC);
- period = val;
-
- val = (unsigned long long)period * duty_ns;
- do_div(val, period_ns);
- duty = period - val;
-
- if (duty >= period)
- duty = period - 1;
-
- set_gptimer_config(pwm->id, TIMER_MODE_PWM | TIMER_PERIOD_CNT);
- set_gptimer_pwidth(pwm->id, duty);
- set_gptimer_period(pwm->id, period);
-
- return 0;
-}
-EXPORT_SYMBOL(pwm_config);
-
-int pwm_enable(struct pwm_device *pwm)
-{
- enable_gptimer(pwm->id);
- return 0;
-}
-EXPORT_SYMBOL(pwm_enable);
-
-void pwm_disable(struct pwm_device *pwm)
-{
- disable_gptimer(pwm->id);
-}
-EXPORT_SYMBOL(pwm_disable);
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index ada8f0fc71e4..fb96e607adcf 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -52,7 +52,6 @@ EXPORT_SYMBOL(reserved_mem_dcache_on);
#ifdef CONFIG_MTD_UCLINUX
extern struct map_info uclinux_ram_map;
unsigned long memory_mtd_end, memory_mtd_start, mtd_size;
-unsigned long _ebss;
EXPORT_SYMBOL(memory_mtd_end);
EXPORT_SYMBOL(memory_mtd_start);
EXPORT_SYMBOL(mtd_size);