MIPS: Netlogic: Add XLP platform files for XLP SoC

- Update common files to support XLP.
- Add arch/mips/include/asm/netlogic/xlp-hal for register definitions
  and access macros
- Add arch/mips/netlogic/xlp/ for XLP specific files.

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2967/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 29 insertions, 4 deletions

diff --git a/arch/mips/netlogic/common/earlycons.c b/arch/mips/netlogic/common/earlycons.c
index 28c8fa7a8503..f193f7b3bd81 100644
--- a/arch/mips/netlogic/common/earlycons.c
+++ b/arch/mips/netlogic/common/earlycons.c
@@ -38,13 +38,22 @@
 #include <asm/mipsregs.h>
 #include <asm/netlogic/haldefs.h>
 
+#if defined(CONFIG_CPU_XLP)
+#include <asm/netlogic/xlp-hal/iomap.h>
+#include <asm/netlogic/xlp-hal/uart.h>
+#elif defined(CONFIG_CPU_XLR)
 #include <asm/netlogic/xlr/iomap.h>
+#endif
 
 void prom_putchar(char c)
 {
 	uint64_t uartbase;
 
+#if defined(CONFIG_CPU_XLP)
+	uartbase = nlm_get_uart_regbase(0, 0);
+#elif defined(CONFIG_CPU_XLR)
 	uartbase = nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET);
+#endif
 	while (nlm_read_reg(uartbase, UART_LSR) == 0)
 		;
 	nlm_write_reg(uartbase, UART_TX, c);
diff --git a/arch/mips/netlogic/common/irq.c b/arch/mips/netlogic/common/irq.c
index dd0dd626cc8f..49a4f6cf71e5 100644
--- a/arch/mips/netlogic/common/irq.c
+++ b/arch/mips/netlogic/common/irq.c
@@ -53,8 +53,16 @@
 #include <asm/netlogic/haldefs.h>
 #include <asm/netlogic/common.h>
 
+#if defined(CONFIG_CPU_XLP)
+#include <asm/netlogic/xlp-hal/iomap.h>
+#include <asm/netlogic/xlp-hal/xlp.h>
+#include <asm/netlogic/xlp-hal/pic.h>
+#elif defined(CONFIG_CPU_XLR)
 #include <asm/netlogic/xlr/iomap.h>
 #include <asm/netlogic/xlr/pic.h>
+#else
+#error "Unknown CPU"
+#endif
 /*
  * These are the routines that handle all the low level interrupt stuff.
  * Actions handled here are: initialization of the interrupt map, requesting of
diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c
index 3b32c834d14c..c1960439f7e1 100644
--- a/arch/mips/netlogic/common/smp.c
+++ b/arch/mips/netlogic/common/smp.c
@@ -45,8 +45,15 @@
 #include <asm/netlogic/haldefs.h>
 #include <asm/netlogic/common.h>
 
+#if defined(CONFIG_CPU_XLP)
+#include <asm/netlogic/xlp-hal/iomap.h>
+#include <asm/netlogic/xlp-hal/pic.h>
+#elif defined(CONFIG_CPU_XLR)
 #include <asm/netlogic/xlr/iomap.h>
 #include <asm/netlogic/xlr/pic.h>
+#else
+#error "Unknown CPU"
+#endif
 
 void nlm_send_ipi_single(int logical_cpu, unsigned int action)
 {
@@ -70,15 +77,15 @@ void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action)
 /* IRQ_IPI_SMP_FUNCTION Handler */
 void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc)
 {
-	smp_call_function_interrupt();
 	write_c0_eirr(1ull << irq);
+	smp_call_function_interrupt();
 }
 
 /* IRQ_IPI_SMP_RESCHEDULE  handler */
 void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc)
 {
-	scheduler_ipi();
 	write_c0_eirr(1ull << irq);
+	scheduler_ipi();
 }
 
 /*
@@ -86,9 +93,10 @@ void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc)
  */
 void nlm_early_init_secondary(int cpu)
 {
+	change_c0_config(CONF_CM_CMASK, 0x3);
 	write_c0_ebase((uint32_t)nlm_common_ebase);
-#ifdef NLM_XLP
-	if (cpu % 4 == 0)
+#ifdef CONFIG_CPU_XLP
+	if (hard_smp_processor_id() % 4 == 0)
 		xlp_mmu_init();
 #endif
 }