ARM: shmobile: r8a7790 SCIF support
Add SCIF serial port support to the r8a7790 SoC by
adding platform devices for SCIFA0 -> SCIFA2 as well
as SCIFB0 -> SCIFB2 and SCIF0 -> SCIF1 together with
clock bindings. DT device description is excluded at
this point since such bindings are still under
development.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c
index af432ba..3bb5bf1 100644
--- a/arch/arm/mach-shmobile/setup-r8a7790.c
+++ b/arch/arm/mach-shmobile/setup-r8a7790.c
@@ -22,13 +22,68 @@
#include <linux/irqchip.h>
#include <linux/kernel.h>
#include <linux/of_platform.h>
+#include <linux/serial_sci.h>
#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/r8a7790.h>
#include <asm/mach/arch.h>
+#define SCIF_COMMON(scif_type, baseaddr, irq) \
+ .type = scif_type, \
+ .mapbase = baseaddr, \
+ .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \
+ .irqs = SCIx_IRQ_MUXED(irq)
+
+#define SCIFA_DATA(index, baseaddr, irq) \
+[index] = { \
+ SCIF_COMMON(PORT_SCIFA, baseaddr, irq), \
+ .scbrr_algo_id = SCBRR_ALGO_4, \
+ .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE0, \
+}
+
+#define SCIFB_DATA(index, baseaddr, irq) \
+[index] = { \
+ SCIF_COMMON(PORT_SCIFB, baseaddr, irq), \
+ .scbrr_algo_id = SCBRR_ALGO_4, \
+ .scscr = SCSCR_RE | SCSCR_TE, \
+}
+
+#define SCIF_DATA(index, baseaddr, irq) \
+[index] = { \
+ SCIF_COMMON(PORT_SCIF, baseaddr, irq), \
+ .scbrr_algo_id = SCBRR_ALGO_2, \
+ .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, \
+}
+
+enum { SCIFA0, SCIFA1, SCIFB0, SCIFB1, SCIFB2, SCIFA2, SCIF0, SCIF1 };
+
+static const struct plat_sci_port scif[] = {
+ SCIFA_DATA(SCIFA0, 0xe6c40000, gic_spi(144)), /* SCIFA0 */
+ SCIFA_DATA(SCIFA1, 0xe6c50000, gic_spi(145)), /* SCIFA1 */
+ SCIFB_DATA(SCIFB0, 0xe6c20000, gic_spi(148)), /* SCIFB0 */
+ SCIFB_DATA(SCIFB1, 0xe6c30000, gic_spi(149)), /* SCIFB1 */
+ SCIFB_DATA(SCIFB2, 0xe6ce0000, gic_spi(150)), /* SCIFB2 */
+ SCIFA_DATA(SCIFA2, 0xe6c60000, gic_spi(151)), /* SCIFA2 */
+ SCIF_DATA(SCIF0, 0xe6e60000, gic_spi(152)), /* SCIF0 */
+ SCIF_DATA(SCIF1, 0xe6e68000, gic_spi(153)), /* SCIF1 */
+};
+
+static inline void r8a7790_register_scif(int idx)
+{
+ platform_device_register_data(&platform_bus, "sh-sci", idx, &scif[idx],
+ sizeof(struct plat_sci_port));
+}
+
void __init r8a7790_add_standard_devices(void)
{
+ r8a7790_register_scif(SCIFA0);
+ r8a7790_register_scif(SCIFA1);
+ r8a7790_register_scif(SCIFB0);
+ r8a7790_register_scif(SCIFB1);
+ r8a7790_register_scif(SCIFB2);
+ r8a7790_register_scif(SCIFA2);
+ r8a7790_register_scif(SCIF0);
+ r8a7790_register_scif(SCIF1);
}
#ifdef CONFIG_USE_OF