Final MIPS fixes for 4.14

A final few MIPS fixes for 4.14:
 
 - Fix BMIPS NULL pointer dereference (4.7)
 - Fix AR7 early GPIO init allocation failure (3.19)
 - Fix dead serial output on certain AR7 platforms (2.6.35)
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEd80NauSabkiESfLYbAtpk944dnoFAloEwWQACgkQbAtpk944
 dnrH0RAAlVxfUnX1NgHEoYlt6cvd9l1rb0n7zi0sy8sGfv4zaI/0QvsyQVnPx5yI
 8Fmu4XWPsY8Evb3/sqVR5cIUiW/vC1gi5FRlPLoMzNnkoNpb8N/XSOiMlepAvayE
 E3fSgcUNIK5n6ybltWcW2uLPDKganPTkDBcREAQOO+RukaVAMtI+E3O6ndESimfb
 wiuaQZ/BSRl81tMaZkgOauHzWa626hzCnTBGHP2DiwAV+XA7Gyfc+WTeO5tnLoUK
 yhMITk+umyhpemYfxbnW81d+lzM3LnY6+hsinpwOYBqpF+CmlIy5BlfggTe9C20T
 LHxxshsyDusTm6QbMvu01AKLnx/mOthiq5jZIgQhjpjD7do3URnxcQe2bMDhAYZ6
 h6rYNuYruE5AXdsjHAAFA6JNQUa3SMisopAjdkM3umhbSOmxfG4BU1ANhHj/HaYf
 cj0XcCk4foFcl7/+P2pmlC8IDQoSaw5spxT+glXhhD/BpFwtvb0jx6ovxtKSGE0Z
 6soe3fZQdEGvdChsTfNG+sehub1g3s+mkylFlNt5NA8quj/i1Z6XVHUGTK1cFUKS
 6EOEdDB5pJfaZKjTpLiGahvV7eiG54pU+cDL0OIOUqo/Nqh6sFv6qzSBWYQtrMM0
 i0pvIS2K8AJLl230hgiz5fsqUSslYVRTbygW4bSO8h1h3rnOElE=
 =tNHp
 -----END PGP SIGNATURE-----

Merge tag 'mips_fixes_4.14_2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips

Pull MIPS fixes from James Hogan:
 "A final few MIPS fixes for 4.14:

   - fix BMIPS NULL pointer dereference (4.7)

   - fix AR7 early GPIO init allocation failure (3.19)

   - fix dead serial output on certain AR7 platforms (2.6.35)"

* tag 'mips_fixes_4.14_2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips:
  MIPS: AR7: Ensure that serial ports are properly set up
  MIPS: AR7: Defer registration of GPIO
  MIPS: BMIPS: Fix missing cbr address

arch/mips/ar7/platform.c

@@ -575,6 +575,7 @@ static int __init ar7_register_uarts(void)
 	uart_port.type		= PORT_AR7;
 	uart_port.uartclk	= clk_get_rate(bus_clk) / 2;
 	uart_port.iotype	= UPIO_MEM32;
+	uart_port.flags		= UPF_FIXED_TYPE;
 	uart_port.regshift	= 2;
 
 	uart_port.line		= 0;
@@ -653,6 +654,10 @@ static int __init ar7_register_devices(void)
 	u32 val;
 	int res;
 
+	res = ar7_gpio_init();
+	if (res)
+		pr_warn("unable to register gpios: %d\n", res);
+
 	res = ar7_register_uarts();
 	if (res)
 		pr_err("unable to setup uart(s): %d\n", res);

arch/mips/ar7/prom.c

@@ -246,8 +246,6 @@ void __init prom_init(void)
 	ar7_init_cmdline(fw_arg0, (char **)fw_arg1);
 	ar7_init_env((struct env_var *)fw_arg2);
 	console_config();
-
-	ar7_gpio_init();
 }
 
 #define PORT(offset) (KSEG1ADDR(AR7_REGS_UART0 + (offset * 4)))

arch/mips/kernel/smp-bmips.c

@@ -591,11 +591,11 @@ void __init bmips_cpu_setup(void)
 
 		/* Flush and enable RAC */
 		cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG);
-		__raw_writel(cfg | 0x100, BMIPS_RAC_CONFIG);
+		__raw_writel(cfg | 0x100, cbr + BMIPS_RAC_CONFIG);
 		__raw_readl(cbr + BMIPS_RAC_CONFIG);
 
 		cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG);
-		__raw_writel(cfg | 0xf, BMIPS_RAC_CONFIG);
+		__raw_writel(cfg | 0xf, cbr + BMIPS_RAC_CONFIG);
 		__raw_readl(cbr + BMIPS_RAC_CONFIG);
 
 		cfg = __raw_readl(cbr + BMIPS_RAC_ADDRESS_RANGE);