diff mbox

[RFC] ARM: shmobile: g4evm: Use multiple irq vectors for SDHI

Message ID 1314353627-23079-1-git-send-email-horms@verge.net.au (mailing list archive)
State New, archived
Headers show

Commit Message

Simon Horman Aug. 26, 2011, 10:13 a.m. UTC 
This patch is based on "ARM: arch-shmobile: Use multiple irq vectors for SDHI"

It removes multiplexing of the SDHI vectors and names each IRQ source
to allow the SDHI driver to used source-specific handlers.

This is untested as I do not have access to a working g4evm.

Signed-off-by: Simon Horman <horms@verge.net.au>

---

Requires "mmc: sdhi: Allow specific IRQ sources to use corresponding handlers."

*** compile tested only ***
---
 arch/arm/mach-shmobile/board-g4evm.c |   26 ++++++++++++++++++++++-
 arch/arm/mach-shmobile/intc-sh7377.c |   36 ++++++++++++++++-----------------
 2 files changed, 41 insertions(+), 21 deletions(-)

Comments

Simon Horman Aug. 26, 2011, 12:34 p.m. UTC | #1 
On Fri, Aug 26, 2011 at 02:17:20PM +0200, Guennadi Liakhovetski wrote:
> On Fri, 26 Aug 2011, Simon Horman wrote:
> 
> > This patch is based on "ARM: arch-shmobile: Use multiple irq vectors for SDHI"
> > 
> > It removes multiplexing of the SDHI vectors and names each IRQ source
> > to allow the SDHI driver to used source-specific handlers.
> > 
> > This is untested as I do not have access to a working g4evm.
> > 
> > Signed-off-by: Simon Horman <horms@verge.net.au>
> > 
> > ---
> > 
> > Requires "mmc: sdhi: Allow specific IRQ sources to use corresponding handlers."
> > 
> > *** compile tested only ***
> > ---
> >  arch/arm/mach-shmobile/board-g4evm.c |   26 ++++++++++++++++++++++-
> >  arch/arm/mach-shmobile/intc-sh7377.c |   36 ++++++++++++++++-----------------
> 
> This second file should not be here, right?

I believe that the g4evm uses the sh7377 and that the multiplexing of
SDHIinterrupts for the 7377 need to be removed in order to provide multiple
SDHI irq sources.

Am I missing something?

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Simon Horman Aug. 30, 2011, 3:45 a.m. UTC | #2 
On Fri, Aug 26, 2011 at 10:06:45PM +0900, Simon Horman wrote:
> On Fri, Aug 26, 2011 at 02:56:50PM +0200, Guennadi Liakhovetski wrote:
> > On Fri, 26 Aug 2011, Simon Horman wrote:
> > 
> > > On Fri, Aug 26, 2011 at 02:17:20PM +0200, Guennadi Liakhovetski wrote:
> > > > On Fri, 26 Aug 2011, Simon Horman wrote:
> > > > 
> > > > > This patch is based on "ARM: arch-shmobile: Use multiple irq vectors for SDHI"
> > > > > 
> > > > > It removes multiplexing of the SDHI vectors and names each IRQ source
> > > > > to allow the SDHI driver to used source-specific handlers.
> > > > > 
> > > > > This is untested as I do not have access to a working g4evm.
> > > > > 
> > > > > Signed-off-by: Simon Horman <horms@verge.net.au>
> > > > > 
> > > > > ---
> > > > > 
> > > > > Requires "mmc: sdhi: Allow specific IRQ sources to use corresponding handlers."
> > > > > 
> > > > > *** compile tested only ***
> > > > > ---
> > > > >  arch/arm/mach-shmobile/board-g4evm.c |   26 ++++++++++++++++++++++-
> > > > >  arch/arm/mach-shmobile/intc-sh7377.c |   36 ++++++++++++++++-----------------
> > > > 
> > > > This second file should not be here, right?
> > > 
> > > I believe that the g4evm uses the sh7377 and that the multiplexing of
> > > SDHIinterrupts for the 7377 need to be removed in order to provide multiple
> > > SDHI irq sources.
> > > 
> > > Am I missing something?
> > 
> > Maybe not, I just misread your patch description as that it only should 
> > touch the board itself. Since intc-sh7377.c has to be touched too, this 
> > should be tested, I think. And I don't have any 7377 hardware available. 
> 
> I agree that this needs to be tested (or dropped).
> And its annoying that neither of us have the hardware at this time.

Hi Guennadi,

I spoke with Magnus yesterday and there doesn't seem to be any realistic
chance of accessing hardware to test this patch on in the near future.

So I would like to just leave it sitting in the mailing list archive as
an RFC for now.
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diff mbox

Patch

diff --git a/arch/arm/mach-shmobile/board-g4evm.c b/arch/arm/mach-shmobile/board-g4evm.c
index 8e3c555..60721f1 100644
--- a/arch/arm/mach-shmobile/board-g4evm.c
+++ b/arch/arm/mach-shmobile/board-g4evm.c
@@ -209,7 +209,18 @@  static struct resource sdhi0_resources[] = {
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start  = evt2irq(0x0e00), /* SDHI0 */
+		.name   = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
+		.start  = evt2irq(0x0e00) /* SDHI0_SDHI0I0 */,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[2] = {
+		.name   = SH_MOBILE_SDHI_IRQ_SDCARD,
+		.start  = evt2irq(0x0e20) /* SDHI0_SDHI0I1 */,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[3] = {
+		.name   = SH_MOBILE_SDHI_IRQ_SDIO,
+		.start  = evt2irq(0x0e40) /* SDHI0_SDHI0I2 */,
 		.flags  = IORESOURCE_IRQ,
 	},
 };
@@ -236,7 +247,18 @@  static struct resource sdhi1_resources[] = {
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start  = evt2irq(0x0e80), /* SDHI1 */
+		.name   = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
+		.start  = evt2irq(0x0e80) /* SDHI1_SDHI0I0 */,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[2] = {
+		.name   = SH_MOBILE_SDHI_IRQ_SDCARD,
+		.start  = evt2irq(0x0ea0) /* SDHI1_SDHI0I1 */,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[3] = {
+		.name   = SH_MOBILE_SDHI_IRQ_SDIO,
+		.start  = evt2irq(0x0ec0) /* SDHI1_SDHI0I2 */,
 		.flags  = IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/arm/mach-shmobile/intc-sh7377.c b/arch/arm/mach-shmobile/intc-sh7377.c
index fe45154..6395687 100644
--- a/arch/arm/mach-shmobile/intc-sh7377.c
+++ b/arch/arm/mach-shmobile/intc-sh7377.c
@@ -27,8 +27,6 @@ 
 
 enum {
 	UNUSED_INTCA = 0,
-	ENABLED,
-	DISABLED,
 
 	/* interrupt sources INTCA */
 	IRQ0A, IRQ1A, IRQ2A, IRQ3A, IRQ4A, IRQ5A, IRQ6A, IRQ7A,
@@ -51,8 +49,8 @@  enum {
 	MSIOF2, MSIOF1,
 	SCIFA4, SCIFA5, SCIFB,
 	FLCTL_FLSTEI, FLCTL_FLTENDI, FLCTL_FLTREQ0I, FLCTL_FLTREQ1I,
-	SDHI0,
-	SDHI1,
+	SDHI0_SDHI0I0, SDHI0_SDHI0I1, SDHI0_SDHI0I2, SDHI0_SDHI0I3,
+	SDHI1_SDHI1I0, SDHI1_SDHI1I1, SDHI1_SDHI1I2, SDHI1_SDHI1I3,
 	MSU_MSU, MSU_MSU2,
 	IRREM,
 	MSUG,
@@ -87,7 +85,7 @@  enum {
 	/* interrupt groups INTCA */
 	DMAC_1, DMAC_2,	DMAC2_1, DMAC2_2, DMAC3_1, DMAC3_2, SHWYSTAT,
 	AP_ARM1, AP_ARM2, USBHS, SPU2, FLCTL, IIC1,
-	ICUSB, ICUDMC
+	ICUSB, ICUDMC, SDHI0, SDHI1,
 };
 
 static struct intc_vect intca_vectors[] __initdata = {
@@ -130,10 +128,10 @@  static struct intc_vect intca_vectors[] __initdata = {
 	INTC_VECT(SCIFB, 0x0d60),
 	INTC_VECT(FLCTL_FLSTEI, 0x0d80), INTC_VECT(FLCTL_FLTENDI, 0x0da0),
 	INTC_VECT(FLCTL_FLTREQ0I, 0x0dc0), INTC_VECT(FLCTL_FLTREQ1I, 0x0de0),
-	INTC_VECT(SDHI0, 0x0e00), INTC_VECT(SDHI0, 0x0e20),
-	INTC_VECT(SDHI0, 0x0e40), INTC_VECT(SDHI0, 0x0e60),
-	INTC_VECT(SDHI1, 0x0e80), INTC_VECT(SDHI1, 0x0ea0),
-	INTC_VECT(SDHI1, 0x0ec0), INTC_VECT(SDHI1, 0x0ee0),
+	INTC_VECT(SDHI0_SDHI0I0, 0x0e00), INTC_VECT(SDHI0_SDHI0I1, 0x0e20),
+	INTC_VECT(SDHI0_SDHI0I2, 0x0e40), INTC_VECT(SDHI0_SDHI0I3, 0x0e60),
+	INTC_VECT(SDHI1_SDHI1I0, 0x0e80), INTC_VECT(SDHI1_SDHI1I1, 0x0ea0),
+	INTC_VECT(SDHI1_SDHI1I2, 0x0ec0), INTC_VECT(SDHI1_SDHI1I3, 0x0ee0),
 	INTC_VECT(MSU_MSU, 0x0f20), INTC_VECT(MSU_MSU2, 0x0f40),
 	INTC_VECT(IRREM, 0x0f60),
 	INTC_VECT(MSUG, 0x0fa0),
@@ -200,6 +198,10 @@  static struct intc_group intca_groups[] __initdata = {
 	INTC_GROUP(SHWYSTAT, SHWYSTAT_RT, SHWYSTAT_HS, SHWYSTAT_COM),
 	INTC_GROUP(ICUSB, ICUSB_ICUSB0, ICUSB_ICUSB1),
 	INTC_GROUP(ICUDMC, ICUDMC_ICUDMC1, ICUDMC_ICUDMC2),
+	INTC_GROUP(SDHI0, SDHI0_SDHI0I0, SDHI0_SDHI0I1,
+		   SDHI0_SDHI0I2, SDHI0_SDHI0I3),
+	INTC_GROUP(SDHI1, SDHI1_SDHI1I0, SDHI1_SDHI1I1,
+		   SDHI1_SDHI1I2, SDHI1_SDHI1I3)
 };
 
 static struct intc_mask_reg intca_mask_registers[] __initdata = {
@@ -234,10 +236,10 @@  static struct intc_mask_reg intca_mask_registers[] __initdata = {
 	  { SCIFB, SCIFA5, SCIFA4, MSIOF1,
 	    0, 0, MSIOF2, 0 } },
 	{ 0xe694009c, 0xe69400dc, 8, /* IMR7A / IMCR7A */
-	  { DISABLED, ENABLED, ENABLED, ENABLED,
+	  { SDHI0_SDHI0I3, SDHI0_SDHI0I2, SDHI0_SDHI0I1, SDHI0_SDHI0I0,
 	    FLCTL_FLTREQ1I, FLCTL_FLTREQ0I, FLCTL_FLTENDI, FLCTL_FLSTEI } },
 	{ 0xe69400a0, 0xe69400e0, 8, /* IMR8A / IMCR8A */
-	  { DISABLED, ENABLED, ENABLED, ENABLED,
+	  { SDHI1_SDHI1I3, SDHI1_SDHI1I2, SDHI1_SDHI1I1, SDHI1_SDHI1I0,
 	    TTI20, USBDMAC_USHDMI, 0, MSUG } },
 	{ 0xe69400a4, 0xe69400e4, 8, /* IMR9A / IMCR9A */
 	  { CMT1_CMT13, CMT1_CMT12, CMT1_CMT11, CMT1_CMT10,
@@ -337,14 +339,10 @@  static struct intc_mask_reg intca_ack_registers[] __initdata = {
 	  { IRQ24A, IRQ25A, IRQ26A, IRQ27A, IRQ28A, IRQ29A, IRQ30A, IRQ31A } },
 };
 
-static struct intc_desc intca_desc __initdata = {
-	.name = "sh7377-intca",
-	.force_enable = ENABLED,
-	.force_disable = DISABLED,
-	.hw = INTC_HW_DESC(intca_vectors, intca_groups,
-			   intca_mask_registers, intca_prio_registers,
-			   intca_sense_registers, intca_ack_registers),
-};
+static DECLARE_INTC_DESC_ACK(intca_desc, "sh7377-intca",
+			     intca_vectors, intca_groups,
+			     intca_mask_registers, intca_prio_registers,
+			     intca_sense_registers, intca_ack_registers);
 
 /* this macro ignore entry which is also in INTCA */
 #define __IGNORE(a...)