[AVR32] Add Atmel SSC driver platform device to AT32AP architecture

This patch adds register definitions, clocks and IRQs to the platform devices.

Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

2 files changed, 100 insertions, 0 deletions

diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c
index c74f3715f3f1..64cc5583ddfb 100644
--- a/arch/avr32/mach-at32ap/at32ap7000.c
+++ b/arch/avr32/mach-at32ap/at32ap7000.c
@@ -1085,6 +1085,89 @@ err_dup_modedb:
 }
 
 /* --------------------------------------------------------------------
+ *  SSC
+ * -------------------------------------------------------------------- */
+static struct resource ssc0_resource[] = {
+        PBMEM(0xffe01c00),
+        IRQ(10),
+};
+DEFINE_DEV(ssc, 0);
+DEV_CLK(pclk, ssc0, pba, 7);
+
+static struct resource ssc1_resource[] = {
+        PBMEM(0xffe02000),
+        IRQ(11),
+};
+DEFINE_DEV(ssc, 1);
+DEV_CLK(pclk, ssc1, pba, 8);
+
+static struct resource ssc2_resource[] = {
+        PBMEM(0xffe02400),
+        IRQ(12),
+};
+DEFINE_DEV(ssc, 2);
+DEV_CLK(pclk, ssc2, pba, 9);
+
+struct platform_device *__init
+at32_add_device_ssc(unsigned int id, unsigned int flags)
+{
+        struct platform_device *pdev;
+
+        switch (id) {
+        case 0:
+                pdev = &ssc0_device;
+                if (flags & ATMEL_SSC_RF)
+                        select_peripheral(PA(21), PERIPH_A, 0); /* RF */
+                if (flags & ATMEL_SSC_RK)
+                        select_peripheral(PA(22), PERIPH_A, 0); /* RK */
+                if (flags & ATMEL_SSC_TK)
+                        select_peripheral(PA(23), PERIPH_A, 0); /* TK */
+                if (flags & ATMEL_SSC_TF)
+                        select_peripheral(PA(24), PERIPH_A, 0); /* TF */
+                if (flags & ATMEL_SSC_TD)
+                        select_peripheral(PA(25), PERIPH_A, 0); /* TD */
+                if (flags & ATMEL_SSC_RD)
+                        select_peripheral(PA(26), PERIPH_A, 0); /* RD */
+                break;
+        case 1:
+                pdev = &ssc1_device;
+                if (flags & ATMEL_SSC_RF)
+                        select_peripheral(PA(0), PERIPH_B, 0);  /* RF */
+                if (flags & ATMEL_SSC_RK)
+                        select_peripheral(PA(1), PERIPH_B, 0);  /* RK */
+                if (flags & ATMEL_SSC_TK)
+                        select_peripheral(PA(2), PERIPH_B, 0);  /* TK */
+                if (flags & ATMEL_SSC_TF)
+                        select_peripheral(PA(3), PERIPH_B, 0);  /* TF */
+                if (flags & ATMEL_SSC_TD)
+                        select_peripheral(PA(4), PERIPH_B, 0);  /* TD */
+                if (flags & ATMEL_SSC_RD)
+                        select_peripheral(PA(5), PERIPH_B, 0);  /* RD */
+                break;
+        case 2:
+                pdev = &ssc2_device;
+                if (flags & ATMEL_SSC_TD)
+                        select_peripheral(PB(13), PERIPH_A, 0); /* TD */
+                if (flags & ATMEL_SSC_RD)
+                        select_peripheral(PB(14), PERIPH_A, 0); /* RD */
+                if (flags & ATMEL_SSC_TK)
+                        select_peripheral(PB(15), PERIPH_A, 0); /* TK */
+                if (flags & ATMEL_SSC_TF)
+                        select_peripheral(PB(16), PERIPH_A, 0); /* TF */
+                if (flags & ATMEL_SSC_RF)
+                        select_peripheral(PB(17), PERIPH_A, 0); /* RF */
+                if (flags & ATMEL_SSC_RK)
+                        select_peripheral(PB(18), PERIPH_A, 0); /* RK */
+                break;
+        default:
+                return NULL;
+        }
+
+        platform_device_register(pdev);
+        return pdev;
+}
+
+/* --------------------------------------------------------------------
  *  GCLK
  * -------------------------------------------------------------------- */
 static struct clk gclk0 = {
@@ -1166,6 +1249,9 @@ struct clk *at32_clock_list[] = {
         &atmel_spi1_spi_clk,
         &atmel_lcdfb0_hck1,
         &atmel_lcdfb0_pixclk,
+        &ssc0_pclk,
+        &ssc1_pclk,
+        &ssc2_pclk,
         &gclk0,
         &gclk1,
         &gclk2,
diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
index 974480438849..0215965dc586 100644
--- a/include/asm-avr32/arch-at32ap/board.h
+++ b/include/asm-avr32/arch-at32ap/board.h
@@ -36,4 +36,18 @@ struct platform_device *
 at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
                      unsigned long fbmem_start, unsigned long fbmem_len);
 
+/* depending on what's hooked up, not all SSC pins will be used */
+#define ATMEL_SSC_TK            0x01
+#define ATMEL_SSC_TF            0x02
+#define ATMEL_SSC_TD            0x04
+#define ATMEL_SSC_TX            (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)
+
+#define ATMEL_SSC_RK            0x10
+#define ATMEL_SSC_RF            0x20
+#define ATMEL_SSC_RD            0x40
+#define ATMEL_SSC_RX            (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)
+
+struct platform_device *
+at32_add_device_ssc(unsigned int id, unsigned int flags);
+
 #endif /* __ASM_ARCH_BOARD_H */