MIPS: BCM63XX: Add basic BCM6328 support

This includes CPU speed, memory size detection and working UART, but
lacking the appropriate drivers, no support for attached flash.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/3951/
Reviewed-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index 9a216a451d92..18e051ad18a5 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -27,6 +27,17 @@ static void __internal_irq_unmask_32(unsigned int irq) __maybe_unused;
 static void __internal_irq_unmask_64(unsigned int irq) __maybe_unused;
 
 #ifndef BCMCPU_RUNTIME_DETECT
+#ifdef CONFIG_BCM63XX_CPU_6328
+#define irq_stat_reg            PERF_IRQSTAT_6328_REG
+#define irq_mask_reg            PERF_IRQMASK_6328_REG
+#define irq_bits                64
+#define is_ext_irq_cascaded     1
+#define ext_irq_start           (BCM_6328_EXT_IRQ0 - IRQ_INTERNAL_BASE)
+#define ext_irq_end             (BCM_6328_EXT_IRQ3 - IRQ_INTERNAL_BASE)
+#define ext_irq_count           4
+#define ext_irq_cfg_reg1        PERF_EXTIRQ_CFG_REG_6328
+#define ext_irq_cfg_reg2        0
+#endif
 #ifdef CONFIG_BCM63XX_CPU_6338
 #define irq_stat_reg            PERF_IRQSTAT_6338_REG
 #define irq_mask_reg            PERF_IRQMASK_6338_REG
@@ -118,6 +129,16 @@ static void bcm63xx_init_irq(void)
         irq_mask_addr = bcm63xx_regset_address(RSET_PERF);
 
         switch (bcm63xx_get_cpu_id()) {
+        case BCM6328_CPU_ID:
+                irq_stat_addr += PERF_IRQSTAT_6328_REG;
+                irq_mask_addr += PERF_IRQMASK_6328_REG;
+                irq_bits = 64;
+                ext_irq_count = 4;
+                is_ext_irq_cascaded = 1;
+                ext_irq_start = BCM_6328_EXT_IRQ0 - IRQ_INTERNAL_BASE;
+                ext_irq_end = BCM_6328_EXT_IRQ3 - IRQ_INTERNAL_BASE;
+                ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6328;
+                break;
         case BCM6338_CPU_ID:
                 irq_stat_addr += PERF_IRQSTAT_6338_REG;
                 irq_mask_addr += PERF_IRQMASK_6338_REG;