diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-07 11:11:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-07 11:11:43 -0700 |
commit | d2b4a646717153a1a180b64d4a8464054dbd700e (patch) | |
tree | a019907da37389f59ddb429c7d10de178514af1e /drivers/dma/pl330.c | |
parent | 8dce5f3dee21bf976193ddb06426b9727cf5d1a2 (diff) | |
parent | 67eacc1583909d0588c8d5d80c16298c899a6382 (diff) |
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul:
"Once you have some time from extended weekend celebrations please
consider pulling the following to get:
- Various fixes and PCI driver for dw_dmac by Andy
- DT binding for imx-dma by Markus & imx-sdma by Shawn
- DT fixes for dmaengine by Lars
- jz4740 dmac driver by Lars
- and various fixes across the drivers"
What "extended weekend celebrations"? I'm in the merge window, who has
time for extended celebrations..
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (40 commits)
DMA: shdma: add DT support
DMA: shdma: shdma_chan_filter() has to be in shdma-base.h
DMA: shdma: (cosmetic) don't re-calculate a pointer
dmaengine: at_hdmac: prepare clk before calling enable
dmaengine/trivial: at_hdmac: add curly brackets to if/else expressions
dmaengine: at_hdmac: remove unsuded atc_cleanup_descriptors()
dmaengine: at_hdmac: add FIFO configuration parameter to DMA DT binding
ARM: at91: dt: add header to define at_hdmac configuration
MIPS: jz4740: Correct clock gate bit for DMA controller
MIPS: jz4740: Remove custom DMA API
MIPS: jz4740: Register jz4740 DMA device
dma: Add a jz4740 dmaengine driver
MIPS: jz4740: Acquire and enable DMA controller clock
dma: mmp_tdma: disable irq when disabling dma channel
dmaengine: PL08x: Avoid collisions with get_signal() macro
dmaengine: dw: select DW_DMAC_BIG_ENDIAN_IO automagically
dma: dw: add PCI part of the driver
dma: dw: split driver to library part and platform code
dma: move dw_dmac driver to an own directory
dw_dmac: don't check resource with devm_ioremap_resource
...
Diffstat (limited to 'drivers/dma/pl330.c')
-rw-r--r-- | drivers/dma/pl330.c | 29 |
1 files changed, 4 insertions, 25 deletions
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 7ec82f0667eb..593827b3fdd4 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -157,7 +157,6 @@ enum pl330_reqtype { #define PERIPH_REV_R0P0 0 #define PERIPH_REV_R1P0 1 #define PERIPH_REV_R1P1 2 -#define PCELL_ID 0xff0 #define CR0_PERIPH_REQ_SET (1 << 0) #define CR0_BOOT_EN_SET (1 << 1) @@ -193,8 +192,6 @@ enum pl330_reqtype { #define INTEG_CFG 0x0 #define PERIPH_ID_VAL ((PART << 0) | (DESIGNER << 12)) -#define PCELL_ID_VAL 0xb105f00d - #define PL330_STATE_STOPPED (1 << 0) #define PL330_STATE_EXECUTING (1 << 1) #define PL330_STATE_WFE (1 << 2) @@ -292,7 +289,6 @@ static unsigned cmd_line; /* Populated by the PL330 core driver for DMA API driver's info */ struct pl330_config { u32 periph_id; - u32 pcell_id; #define DMAC_MODE_NS (1 << 0) unsigned int mode; unsigned int data_bus_width:10; /* In number of bits */ @@ -505,7 +501,7 @@ struct pl330_dmac { /* Maximum possible events/irqs */ int events[32]; /* BUS address of MicroCode buffer */ - u32 mcode_bus; + dma_addr_t mcode_bus; /* CPU address of MicroCode buffer */ void *mcode_cpu; /* List of all Channel threads */ @@ -650,19 +646,6 @@ static inline bool _manager_ns(struct pl330_thread *thrd) return (pl330->pinfo->pcfg.mode & DMAC_MODE_NS) ? true : false; } -static inline u32 get_id(struct pl330_info *pi, u32 off) -{ - void __iomem *regs = pi->base; - u32 id = 0; - - id |= (readb(regs + off + 0x0) << 0); - id |= (readb(regs + off + 0x4) << 8); - id |= (readb(regs + off + 0x8) << 16); - id |= (readb(regs + off + 0xc) << 24); - - return id; -} - static inline u32 get_revision(u32 periph_id) { return (periph_id >> PERIPH_REV_SHIFT) & PERIPH_REV_MASK; @@ -1986,9 +1969,6 @@ static void read_dmac_config(struct pl330_info *pi) pi->pcfg.num_events = val; pi->pcfg.irq_ns = readl(regs + CR3); - - pi->pcfg.periph_id = get_id(pi, PERIPH_ID); - pi->pcfg.pcell_id = get_id(pi, PCELL_ID); } static inline void _reset_thread(struct pl330_thread *thrd) @@ -2098,10 +2078,8 @@ static int pl330_add(struct pl330_info *pi) regs = pi->base; /* Check if we can handle this DMAC */ - if ((get_id(pi, PERIPH_ID) & 0xfffff) != PERIPH_ID_VAL - || get_id(pi, PCELL_ID) != PCELL_ID_VAL) { - dev_err(pi->dev, "PERIPH_ID 0x%x, PCELL_ID 0x%x !\n", - get_id(pi, PERIPH_ID), get_id(pi, PCELL_ID)); + if ((pi->pcfg.periph_id & 0xfffff) != PERIPH_ID_VAL) { + dev_err(pi->dev, "PERIPH_ID 0x%x !\n", pi->pcfg.periph_id); return -EINVAL; } @@ -2916,6 +2894,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) if (ret) return ret; + pi->pcfg.periph_id = adev->periphid; ret = pl330_add(pi); if (ret) goto probe_err1; |