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authorXiang Wang <wangx@marvell.com>2015-03-23 17:56:58 -0500
committerTom Rini <trini@konsulko.com>2015-04-23 13:59:18 -0400
commitee4303cffa52216c4d12c6182eb41480713f439a (patch)
treed6e1a84ae56bea8c2e907bcc8bc02f833b11dcb9
parenta868e44333ebac080dd6ed81e5ae580691f7fd18 (diff)
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gpio: mvmfp: support newer MFP bit definitions
1. The bits 11..10 for mfp driver strength is only valid for aspen and old xscale family, for newer Marvell chip, this range has been moved to 12..11. 2. add sleep bit support Signed-off-by: Xiang Wang <wangx@marvell.com> [robh: rebase to current mainline] Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat
-rw-r--r--drivers/gpio/mvmfp.c14
-rw-r--r--include/mvmfp.h90
2 files changed, 55 insertions, 49 deletions
diff --git a/drivers/gpio/mvmfp.c b/drivers/gpio/mvmfp.c
index 97bbe99..43ecf66 100644
--- a/drivers/gpio/mvmfp.c
+++ b/drivers/gpio/mvmfp.c
@@ -43,18 +43,8 @@ void mfp_config(u32 *mfp_cfgs)
/* Write a mfg register as per configuration */
val = 0;
- if (cfg_val & MFP_AF_FLAG)
- /* Abstract and program Afternate-Func Selection */
- val |= cfg_val & MFP_AF_MASK;
- if (cfg_val & MFP_EDGE_FLAG)
- /* Abstract and program Edge configuration */
- val |= cfg_val & MFP_LPM_EDGE_MASK;
- if (cfg_val & MFP_DRIVE_FLAG)
- /* Abstract and program Drive configuration */
- val |= cfg_val & MFP_DRIVE_MASK;
- if (cfg_val & MFP_PULL_FLAG)
- /* Abstract and program Pullup/down configuration */
- val |= cfg_val & MFP_PULL_MASK;
+ if (cfg_val & MFP_VALUE_MASK)
+ val |= cfg_val & MFP_VALUE_MASK;
writel(val, p_mfpr);
} while (1);
diff --git a/include/mvmfp.h b/include/mvmfp.h
index 961d799..e61e92d 100644
--- a/include/mvmfp.h
+++ b/include/mvmfp.h
@@ -21,61 +21,77 @@
/*
* MFP configuration is represented by a 32-bit unsigned integer
*/
-#define MFP(_off, _pull, _pF, _drv, _dF, _edge, _eF, _afn, _aF) ( \
+#ifdef CONFIG_MVMFP_V2
+#define MFP(_off, _pull, _drv, _slp, _edge, _sleep, _afn) ( \
+ /* bits 31..16 - MFP Register Offset */ (((_off) & 0xffff) << 16) | \
+ /* bits 15..13 - Run Mode Pull State */ (((_pull) & 0x7) << 13) | \
+ /* bit 12..11 - Driver Strength */ (((_drv) & 0x3) << 11) | \
+ /* bits 10 - pad driver */ (((_slp) & 0x1) << 10) | \
+ /* bit 09..07 - sleep mode */ (((_sleep) & 0xe) << 6) | \
+ /* bits 06..04 - Edge Detection */ (((_edge) & 0x7) << 4) | \
+ /* bits 03 - sleep mode */ (((_sleep) & 0x1) << 3) | \
+ /* bits 02..00 - Alt-fun select */ ((_afn) & 0x7))
+#else
+#define MFP(_off, _pull, _drv, _slp, _edge, _sleep, _afn) ( \
/* bits 31..16 - MFP Register Offset */ (((_off) & 0xffff) << 16) | \
/* bits 15..13 - Run Mode Pull State */ (((_pull) & 0x7) << 13) | \
/* bit 12 - Unused */ \
/* bits 11..10 - Driver Strength */ (((_drv) & 0x3) << 10) | \
- /* bit 09 - Pull State flag */ (((_pF) & 0x1) << 9) | \
- /* bit 08 - Drv-strength flag */ (((_dF) & 0x1) << 8) | \
- /* bit 07 - Edge-det flag */ (((_eF) & 0x1) << 7) | \
+ /* bit 09..07 - sleep mode */ (((_sleep) & 0xe) << 6) | \
/* bits 06..04 - Edge Detection */ (((_edge) & 0x7) << 4) | \
- /* bits 03..00 - Alt-fun flag */ (((_aF) & 0x1) << 3) | \
- /* bits Alternate-fun select */ ((_afn) & 0x7))
+ /* bits 03 - sleep mode */ (((_sleep) & 0x1) << 3) | \
+ /* bits 02..00 - Alt-fun select */ ((_afn) & 0x7))
+#endif
/*
* to facilitate the definition, the following macros are provided
*
* offset, pull,pF, drv,dF, edge,eF ,afn,aF
*/
-#define MFP_OFFSET_MASK MFP(0xffff, 0,0, 0,0, 0,0, 0,0)
-#define MFP_REG(x) MFP(x, 0,0, 0,0, 0,0, 0,0)
+#define MFP_OFFSET_MASK MFP(0xffff, 0, 0, 0, 0, 0, 0)
+#define MFP_REG(x) MFP(x, 0, 0, 0, 0, 0, 0)
#define MFP_REG_GET_OFFSET(x) ((x & MFP_OFFSET_MASK) >> 16)
-#define MFP_AF_FLAG MFP(0x0000, 0,0, 0,0, 0,0, 0,1)
-#define MFP_DRIVE_FLAG MFP(0x0000, 0,0, 0,1, 0,0, 0,0)
-#define MFP_EDGE_FLAG MFP(0x0000, 0,0, 0,0, 0,1, 0,0)
-#define MFP_PULL_FLAG MFP(0x0000, 0,1, 0,0, 0,0, 0,0)
+#define MFP_AF0 MFP(0x0000, 0, 0, 0, 0, 0, 0)
+#define MFP_AF1 MFP(0x0000, 0, 0, 0, 0, 0, 1)
+#define MFP_AF2 MFP(0x0000, 0, 0, 0, 0, 0, 2)
+#define MFP_AF3 MFP(0x0000, 0, 0, 0, 0, 0, 3)
+#define MFP_AF4 MFP(0x0000, 0, 0, 0, 0, 0, 4)
+#define MFP_AF5 MFP(0x0000, 0, 0, 0, 0, 0, 5)
+#define MFP_AF6 MFP(0x0000, 0, 0, 0, 0, 0, 6)
+#define MFP_AF7 MFP(0x0000, 0, 0, 0, 0, 0, 7)
+#define MFP_AF_MASK MFP(0x0000, 0, 0, 0, 0, 0, 7)
+
+#define MFP_SLEEP_CTRL2 MFP(0x0000, 0, 0, 0, 0, 1, 0)
+#define MFP_SLEEP_DIR MFP(0x0000, 0, 0, 0, 0, 2, 0)
+#define MFP_SLEEP_DATA MFP(0x0000, 0, 0, 0, 0, 4, 0)
+#define MFP_SLEEP_CTRL MFP(0x0000, 0, 0, 0, 0, 8, 0)
+#define MFP_SLEEP_MASK MFP(0x0000, 0, 0, 0, 0, 0xf, 0)
-#define MFP_AF0 MFP(0x0000, 0,0, 0,0, 0,0, 0,1)
-#define MFP_AF1 MFP(0x0000, 0,0, 0,0, 0,0, 1,1)
-#define MFP_AF2 MFP(0x0000, 0,0, 0,0, 0,0, 2,1)
-#define MFP_AF3 MFP(0x0000, 0,0, 0,0, 0,0, 3,1)
-#define MFP_AF4 MFP(0x0000, 0,0, 0,0, 0,0, 4,1)
-#define MFP_AF5 MFP(0x0000, 0,0, 0,0, 0,0, 5,1)
-#define MFP_AF6 MFP(0x0000, 0,0, 0,0, 0,0, 6,1)
-#define MFP_AF7 MFP(0x0000, 0,0, 0,0, 0,0, 7,1)
-#define MFP_AF_MASK MFP(0x0000, 0,0, 0,0, 0,0, 7,0)
+#define MFP_LPM_EDGE_NONE MFP(0x0000, 0, 0, 0, 4, 0, 0)
+#define MFP_LPM_EDGE_RISE MFP(0x0000, 0, 0, 0, 1, 0, 0)
+#define MFP_LPM_EDGE_FALL MFP(0x0000, 0, 0, 0, 2, 0, 0)
+#define MFP_LPM_EDGE_BOTH MFP(0x0000, 0, 0, 0, 3, 0, 0)
+#define MFP_LPM_EDGE_MASK MFP(0x0000, 0, 0, 0, 7, 0, 0)
-#define MFP_LPM_EDGE_NONE MFP(0x0000, 0,0, 0,0, 0,1, 0,0)
-#define MFP_LPM_EDGE_RISE MFP(0x0000, 0,0, 0,0, 1,1, 0,0)
-#define MFP_LPM_EDGE_FALL MFP(0x0000, 0,0, 0,0, 2,1, 0,0)
-#define MFP_LPM_EDGE_BOTH MFP(0x0000, 0,0, 0,0, 3,1, 0,0)
-#define MFP_LPM_EDGE_MASK MFP(0x0000, 0,0, 0,0, 3,0, 0,0)
+#define MFP_SLP_DI MFP(0x0000, 0, 0, 1, 0, 0, 0)
-#define MFP_DRIVE_VERY_SLOW MFP(0x0000, 0,0, 0,1, 0,0, 0,0)
-#define MFP_DRIVE_SLOW MFP(0x0000, 0,0, 1,1, 0,0, 0,0)
-#define MFP_DRIVE_MEDIUM MFP(0x0000, 0,0, 2,1, 0,0, 0,0)
-#define MFP_DRIVE_FAST MFP(0x0000, 0,0, 3,1, 0,0, 0,0)
-#define MFP_DRIVE_MASK MFP(0x0000, 0,0, 3,0, 0,0, 0,0)
+#define MFP_DRIVE_VERY_SLOW MFP(0x0000, 0, 0, 0, 0, 0, 0)
+#define MFP_DRIVE_SLOW MFP(0x0000, 0, 1, 0, 0, 0, 0)
+#define MFP_DRIVE_MEDIUM MFP(0x0000, 0, 2, 0, 0, 0, 0)
+#define MFP_DRIVE_FAST MFP(0x0000, 0, 3, 0, 0, 0, 0)
+#define MFP_DRIVE_MASK MFP(0x0000, 0, 3, 0, 0, 0, 0)
-#define MFP_PULL_NONE MFP(0x0000, 0,1, 0,0, 0,0, 0,0)
-#define MFP_PULL_LOW MFP(0x0000, 1,1, 0,0, 0,0, 0,0)
-#define MFP_PULL_HIGH MFP(0x0000, 2,1, 0,0, 0,0, 0,0)
-#define MFP_PULL_BOTH MFP(0x0000, 3,1, 0,0, 0,0, 0,0)
-#define MFP_PULL_FLOAT MFP(0x0000, 4,1, 0,0, 0,0, 0,0)
-#define MFP_PULL_MASK MFP(0x0000, 7,0, 0,0, 0,0, 0,0)
+#define MFP_PULL_NONE MFP(0x0000, 0, 0, 0, 0, 0, 0)
+#define MFP_PULL_LOW MFP(0x0000, 5, 0, 0, 0, 0, 0)
+#define MFP_PULL_HIGH MFP(0x0000, 6, 0, 0, 0, 0, 0)
+#define MFP_PULL_BOTH MFP(0x0000, 7, 0, 0, 0, 0, 0)
+#define MFP_PULL_FLOAT MFP(0x0000, 4, 0, 0, 0, 0, 0)
+#define MFP_PULL_MASK MFP(0x0000, 7, 0, 0, 0, 0, 0)
+#define MFP_VALUE_MASK (MFP_PULL_MASK | MFP_DRIVE_MASK | MFP_SLP_DI \
+ | MFP_LPM_EDGE_MASK | MFP_SLEEP_MASK \
+ | MFP_AF_MASK)
#define MFP_EOC 0xffffffff /* indicates end-of-conf */
/* Functions */
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