[POWERPC] cpm_uart: Be an of_platform device when CONFIG_PPC_CPM_NEW_BINDING is set.

The existing OF glue code was crufty and broken.  Rather than fix it,
it has been removed, and the serial driver now talks to the device tree
directly.

The non-CONFIG_PPC_CPM_NEW_BINDING code can go away once CPM platforms
are dropped from arch/ppc (which will hopefully be soon), and existing
arch/powerpc boards that I wasn't able to test on for this patchset get
converted (which should be even sooner).
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

drivers/serial/cpm_uart/cpm_uart.h

@@ -80,14 +80,18 @@ struct uart_cpm_port {
 	int			is_portb;
 	/* wait on close if needed */
 	int 			wait_closing;
+	/* value to combine with opcode to form cpm command */
+	u32			command;
 };
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 extern int cpm_uart_port_map[UART_NR];
+#endif
 extern int cpm_uart_nr;
 extern struct uart_cpm_port cpm_uart_ports[UART_NR];
 
 /* these are located in their respective files */
-void cpm_line_cr_cmd(int line, int cmd);
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd);
 int cpm_uart_init_portdesc(void);
 int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con);
 void cpm_uart_freebuf(struct uart_cpm_port *pinfo);

drivers/serial/cpm_uart/cpm_uart_cpm1.c

@@ -49,9 +49,20 @@
 
 /**************************************************************/
 
-void cpm_line_cr_cmd(int line, int cmd)
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
+{
+	u16 __iomem *cpcr = &cpmp->cp_cpcr;
+
+	out_be16(cpcr, port->command | (cmd << 8) | CPM_CR_FLG);
+	while (in_be16(cpcr) & CPM_CR_FLG)
+		;
+}
+#else
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
 {
 	ushort val;
+	int line = port - cpm_uart_ports;
 	volatile cpm8xx_t *cp = cpmp;
 
 	switch (line) {
@@ -114,6 +125,7 @@ void scc4_lineif(struct uart_cpm_port *pinfo)
 	/* XXX SCC4: insert port configuration here */
 	pinfo->brg = 4;
 }
+#endif
 
 /*
  * Allocate DP-Ram and memory buffers. We need to allocate a transmit and
@@ -184,6 +196,7 @@ void cpm_uart_freebuf(struct uart_cpm_port *pinfo)
 	cpm_dpfree(pinfo->dp_addr);
 }
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 /* Setup any dynamic params in the uart desc */
 int cpm_uart_init_portdesc(void)
 {
@@ -279,3 +292,4 @@ int cpm_uart_init_portdesc(void)
 #endif
 	return 0;
 }
+#endif

drivers/serial/cpm_uart/cpm_uart_cpm1.h

@@ -13,12 +13,14 @@
 #include <asm/commproc.h>
 
 /* defines for IRQs */
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 #define SMC1_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SMC1)
 #define SMC2_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SMC2)
 #define SCC1_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SCC1)
 #define SCC2_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SCC2)
 #define SCC3_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SCC3)
 #define SCC4_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SCC4)
+#endif
 
 static inline void cpm_set_brg(int brg, int baud)
 {

drivers/serial/cpm_uart/cpm_uart_cpm2.c

@@ -49,9 +49,22 @@
 
 /**************************************************************/
 
-void cpm_line_cr_cmd(int line, int cmd)
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
+{
+	cpm_cpm2_t __iomem *cp = cpm2_map(im_cpm);
+
+	out_be32(&cp->cp_cpcr, port->command | cmd | CPM_CR_FLG);
+	while (in_be32(&cp->cp_cpcr) & CPM_CR_FLG)
+		;
+
+	cpm2_unmap(cp);
+}
+#else
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
 {
 	ulong val;
+	int line = port - cpm_uart_ports;
 	volatile cpm_cpm2_t *cp = cpm2_map(im_cpm);
 
 
@@ -211,6 +224,7 @@ void scc4_lineif(struct uart_cpm_port *pinfo)
 	cpm2_unmap(cpmux);
 	cpm2_unmap(io);
 }
+#endif
 
 /*
  * Allocate DP-Ram and memory buffers. We need to allocate a transmit and 
@@ -281,6 +295,7 @@ void cpm_uart_freebuf(struct uart_cpm_port *pinfo)
 	cpm_dpfree(pinfo->dp_addr);
 }
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 /* Setup any dynamic params in the uart desc */
 int cpm_uart_init_portdesc(void)
 {
@@ -386,3 +401,4 @@ int cpm_uart_init_portdesc(void)
 
 	return 0;
 }
+#endif

drivers/serial/cpm_uart/cpm_uart_cpm2.h

@@ -13,12 +13,14 @@
 #include <asm/cpm2.h>
 
 /* defines for IRQs */
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 #define SMC1_IRQ	SIU_INT_SMC1
 #define SMC2_IRQ	SIU_INT_SMC2
 #define SCC1_IRQ	SIU_INT_SCC1
 #define SCC2_IRQ	SIU_INT_SCC2
 #define SCC3_IRQ	SIU_INT_SCC3
 #define SCC4_IRQ	SIU_INT_SCC4
+#endif
 
 static inline void cpm_set_brg(int brg, int baud)
 {