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, 10 insertions, 3 deletions

diff --git a/arch/mips/bcm63xx/setup.c b/arch/mips/bcm63xx/setup.c
index 356b05583e14..0e74a13639cd 100644
--- a/arch/mips/bcm63xx/setup.c
+++ b/arch/mips/bcm63xx/setup.c
@@ -68,6 +68,9 @@ void bcm63xx_machine_reboot(void)
 
         /* mask and clear all external irq */
         switch (bcm63xx_get_cpu_id()) {
+        case BCM6328_CPU_ID:
+                perf_regs[0] = PERF_EXTIRQ_CFG_REG_6328;
+                break;
         case BCM6338_CPU_ID:
                 perf_regs[0] = PERF_EXTIRQ_CFG_REG_6338;
                 break;
@@ -95,9 +98,13 @@ void bcm63xx_machine_reboot(void)
                 bcm6348_a1_reboot();
 
         printk(KERN_INFO "triggering watchdog soft-reset...\n");
-        reg = bcm_perf_readl(PERF_SYS_PLL_CTL_REG);
-        reg |= SYS_PLL_SOFT_RESET;
-        bcm_perf_writel(reg, PERF_SYS_PLL_CTL_REG);
+        if (BCMCPU_IS_6328()) {
+                bcm_wdt_writel(1, WDT_SOFTRESET_REG);
+        } else {
+                reg = bcm_perf_readl(PERF_SYS_PLL_CTL_REG);
+                reg |= SYS_PLL_SOFT_RESET;
+                bcm_perf_writel(reg, PERF_SYS_PLL_CTL_REG);
+        }
         while (1)
                 ;
 }