[ARM] mmp: support ssp in pxa168

Support ssp devices in PXA168. PXA168 could reuse the code of PXA SSP.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

arch/arm/mach-mmp/include/mach/irqs.h

@@ -5,10 +5,10 @@
  * Interrupt numbers for PXA168
  */
 #define IRQ_PXA168_NONE			(-1)
-#define IRQ_PXA168_SSP3			0
-#define IRQ_PXA168_SSP2			1
-#define IRQ_PXA168_SSP1			2
-#define IRQ_PXA168_SSP0			3
+#define IRQ_PXA168_SSP4			0
+#define IRQ_PXA168_SSP3			1
+#define IRQ_PXA168_SSP2			2
+#define IRQ_PXA168_SSP1			3
 #define IRQ_PXA168_PMIC_INT		4
 #define IRQ_PXA168_RTC_INT		5
 #define IRQ_PXA168_RTC_ALARM		6
@@ -20,7 +20,7 @@
 #define IRQ_PXA168_TIMER2		14
 #define IRQ_PXA168_TIMER3		15
 #define IRQ_PXA168_CMU			16
-#define IRQ_PXA168_SSP4			17
+#define IRQ_PXA168_SSP5			17
 #define IRQ_PXA168_MSP_WAKEUP		19
 #define IRQ_PXA168_CF_WAKEUP		20
 #define IRQ_PXA168_XD_WAKEUP		21

arch/arm/mach-mmp/include/mach/pxa168.h

@@ -14,6 +14,11 @@ extern struct pxa_device_desc pxa168_device_pwm1;
 extern struct pxa_device_desc pxa168_device_pwm2;
 extern struct pxa_device_desc pxa168_device_pwm3;
 extern struct pxa_device_desc pxa168_device_pwm4;
+extern struct pxa_device_desc pxa168_device_ssp1;
+extern struct pxa_device_desc pxa168_device_ssp2;
+extern struct pxa_device_desc pxa168_device_ssp3;
+extern struct pxa_device_desc pxa168_device_ssp4;
+extern struct pxa_device_desc pxa168_device_ssp5;
 extern struct pxa_device_desc pxa168_device_nand;
 
 static inline int pxa168_add_uart(int id)
@@ -67,6 +72,22 @@ static inline int pxa168_add_pwm(int id)
 	return pxa_register_device(d, NULL, 0);
 }
 
+static inline int pxa168_add_ssp(int id)
+{
+	struct pxa_device_desc *d = NULL;
+
+	switch (id) {
+	case 1: d = &pxa168_device_ssp1; break;
+	case 2: d = &pxa168_device_ssp2; break;
+	case 3: d = &pxa168_device_ssp3; break;
+	case 4: d = &pxa168_device_ssp4; break;
+	case 5: d = &pxa168_device_ssp5; break;
+	default:
+		return -EINVAL;
+	}
+	return pxa_register_device(d, NULL, 0);
+}
+
 static inline int pxa168_add_nand(struct pxa3xx_nand_platform_data *info)
 {
 	return pxa_register_device(&pxa168_device_nand, info, sizeof(*info));

arch/arm/mach-mmp/include/mach/regs-apbc.h

@@ -26,8 +26,6 @@
 #define APBC_PXA168_PWM2	APBC_REG(0x010)
 #define APBC_PXA168_PWM3	APBC_REG(0x014)
 #define APBC_PXA168_PWM4	APBC_REG(0x018)
-#define APBC_PXA168_SSP1	APBC_REG(0x01c)
-#define APBC_PXA168_SSP2	APBC_REG(0x020)
 #define APBC_PXA168_RTC		APBC_REG(0x028)
 #define APBC_PXA168_TWSI0	APBC_REG(0x02c)
 #define APBC_PXA168_KPC		APBC_REG(0x030)
@@ -35,14 +33,16 @@
 #define APBC_PXA168_AIB		APBC_REG(0x03c)
 #define APBC_PXA168_SW_JTAG	APBC_REG(0x040)
 #define APBC_PXA168_ONEWIRE	APBC_REG(0x048)
-#define APBC_PXA168_SSP3	APBC_REG(0x04c)
 #define APBC_PXA168_ASFAR	APBC_REG(0x050)
 #define APBC_PXA168_ASSAR	APBC_REG(0x054)
-#define APBC_PXA168_SSP4	APBC_REG(0x058)
-#define APBC_PXA168_SSP5	APBC_REG(0x05c)
 #define APBC_PXA168_TWSI1	APBC_REG(0x06c)
 #define APBC_PXA168_UART3	APBC_REG(0x070)
 #define APBC_PXA168_AC97	APBC_REG(0x084)
+#define APBC_PXA168_SSP1	APBC_REG(0x81c)
+#define APBC_PXA168_SSP2	APBC_REG(0x820)
+#define APBC_PXA168_SSP3	APBC_REG(0x84c)
+#define APBC_PXA168_SSP4	APBC_REG(0x858)
+#define APBC_PXA168_SSP5	APBC_REG(0x85c)
 
 /*
  * APB Clock register offsets for PXA910

arch/arm/mach-mmp/pxa168.c

@@ -72,6 +72,11 @@ static APBC_CLK(pwm1, PXA168_PWM1, 1, 13000000);
 static APBC_CLK(pwm2, PXA168_PWM2, 1, 13000000);
 static APBC_CLK(pwm3, PXA168_PWM3, 1, 13000000);
 static APBC_CLK(pwm4, PXA168_PWM4, 1, 13000000);
+static APBC_CLK(ssp1, PXA168_SSP1, 4, 0);
+static APBC_CLK(ssp2, PXA168_SSP2, 4, 0);
+static APBC_CLK(ssp3, PXA168_SSP3, 4, 0);
+static APBC_CLK(ssp4, PXA168_SSP4, 4, 0);
+static APBC_CLK(ssp5, PXA168_SSP5, 4, 0);
 
 static APMU_CLK(nand, NAND, 0x01db, 208000000);
 
@@ -85,6 +90,11 @@ static struct clk_lookup pxa168_clkregs[] = {
 	INIT_CLKREG(&clk_pwm2, "pxa168-pwm.1", NULL),
 	INIT_CLKREG(&clk_pwm3, "pxa168-pwm.2", NULL),
 	INIT_CLKREG(&clk_pwm4, "pxa168-pwm.3", NULL),
+	INIT_CLKREG(&clk_ssp1, "pxa168-ssp.0", NULL),
+	INIT_CLKREG(&clk_ssp2, "pxa168-ssp.1", NULL),
+	INIT_CLKREG(&clk_ssp3, "pxa168-ssp.2", NULL),
+	INIT_CLKREG(&clk_ssp4, "pxa168-ssp.3", NULL),
+	INIT_CLKREG(&clk_ssp5, "pxa168-ssp.4", NULL),
 	INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
 };
 
@@ -132,3 +142,8 @@ PXA168_DEVICE(pwm2, "pxa168-pwm", 1, NONE, 0xd401a400, 0x10);
 PXA168_DEVICE(pwm3, "pxa168-pwm", 2, NONE, 0xd401a800, 0x10);
 PXA168_DEVICE(pwm4, "pxa168-pwm", 3, NONE, 0xd401ac00, 0x10);
 PXA168_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99);
+PXA168_DEVICE(ssp1, "pxa168-ssp", 0, SSP1, 0xd401b000, 0x40, 52, 53);
+PXA168_DEVICE(ssp2, "pxa168-ssp", 1, SSP2, 0xd401c000, 0x40, 54, 55);
+PXA168_DEVICE(ssp3, "pxa168-ssp", 2, SSP3, 0xd401f000, 0x40, 56, 57);
+PXA168_DEVICE(ssp4, "pxa168-ssp", 3, SSP4, 0xd4020000, 0x40, 58, 59);
+PXA168_DEVICE(ssp5, "pxa168-ssp", 4, SSP5, 0xd4021000, 0x40, 60, 61);

arch/arm/plat-pxa/include/plat/ssp.h

@@ -138,6 +138,7 @@ enum pxa_ssp_type {
 	PXA25x_SSP,  /* pxa 210, 250, 255, 26x */
 	PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */
 	PXA27x_SSP,
+	PXA168_SSP,
 };
 
 struct ssp_device {

arch/arm/plat-pxa/ssp.c

@@ -192,6 +192,7 @@ static const struct platform_device_id ssp_id_table[] = {
 	{ "pxa25x-ssp",		PXA25x_SSP },
 	{ "pxa25x-nssp",	PXA25x_NSSP },
 	{ "pxa27x-ssp",		PXA27x_SSP },
+	{ "pxa168-ssp",		PXA168_SSP },
 	{ },
 };