MIPS: add support for Broadcom MIPS BCM6338 SoC family

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/mips/dts/brcm,bcm6338.dtsi b/arch/mips/dts/brcm,bcm6338.dtsi
new file mode 100644 (file)
index 0000000..eb51a43
--- /dev/null
+++ b/arch/mips/dts/brcm,bcm6338.dtsi
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <dt-bindings/clock/bcm6338-clock.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/reset/bcm6338-reset.h>
+#include "skeleton.dtsi"
+
+/ {
+       compatible = "brcm,bcm6338";
+
+       cpus {
+               reg = <0xfffe0000 0x4>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               u-boot,dm-pre-reloc;
+
+               cpu@0 {
+                       compatible = "brcm,bcm6338-cpu", "mips,mips4Kc";
+                       device_type = "cpu";
+                       reg = <0>;
+                       u-boot,dm-pre-reloc;
+               };
+       };
+
+       clocks {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <1>;
+               u-boot,dm-pre-reloc;
+
+               periph_osc: periph-osc {
+                       compatible = "fixed-clock";
+                       #clock-cells = <0>;
+                       clock-frequency = <50000000>;
+                       u-boot,dm-pre-reloc;
+               };
+
+               periph_clk: periph-clk {
+                       compatible = "brcm,bcm6345-clk";
+                       reg = <0xfffe0004 0x4>;
+                       #clock-cells = <1>;
+               };
+       };
+
+       pflash: nor@1fc00000 {
+               compatible = "cfi-flash";
+               reg = <0x1fc00000 0x400000>;
+               bank-width = <2>;
+               #address-cells = <1>;
+               #size-cells = <1>;
+
+               status = "disabled";
+       };
+
+       ubus {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <1>;
+               u-boot,dm-pre-reloc;
+
+               pll_cntl: syscon@fffe0008 {
+                       compatible = "syscon";
+                       reg = <0xfffe0008 0x4>;
+               };
+
+               syscon-reboot {
+                       compatible = "syscon-reboot";
+                       regmap = <&pll_cntl>;
+                       offset = <0x0>;
+                       mask = <0x1>;
+               };
+
+               periph_rst: reset-controller@fffe0028 {
+                       compatible = "brcm,bcm6345-reset";
+                       reg = <0xfffe0028 0x4>;
+                       #reset-cells = <1>;
+               };
+
+               wdt: watchdog@fffe021c {
+                       compatible = "brcm,bcm6345-wdt";
+                       reg = <0xfffe021c 0xc>;
+                       clocks = <&periph_osc>;
+               };
+
+               wdt-reboot {
+                       compatible = "wdt-reboot";
+                       wdt = <&wdt>;
+               };
+
+               uart0: serial@fffe0300 {
+                       compatible = "brcm,bcm6345-uart";
+                       reg = <0xfffe0300 0x18>;
+                       clocks = <&periph_osc>;
+
+                       status = "disabled";
+               };
+
+               gpio: gpio-controller@fffe0404 {
+                       compatible = "brcm,bcm6345-gpio";
+                       reg = <0xfffe0404 0x4>, <0xfffe040c 0x4>;
+                       gpio-controller;
+                       #gpio-cells = <2>;
+                       ngpios = <8>;
+
+                       status = "disabled";
+               };
+
+               memory-controller@fffe3100 {
+                       compatible = "brcm,bcm6338-mc";
+                       reg = <0xfffe3100 0x38>;
+                       u-boot,dm-pre-reloc;
+               };
+       };
+};

diff --git a/arch/mips/mach-bmips/Kconfig b/arch/mips/mach-bmips/Kconfig
index e8494389ef1636ee77f2b74149956552cbad0cdf..7071888bb38998f3d226855cf85067cf91cd41a8 100644 (file)
--- a/arch/mips/mach-bmips/Kconfig
+++ b/arch/mips/mach-bmips/Kconfig
@@ -4,6 +4,7 @@ menu "Broadcom MIPS platforms"
 config SYS_SOC
        default "bcm3380" if SOC_BMIPS_BCM3380
        default "bcm6328" if SOC_BMIPS_BCM6328
+       default "bcm6338" if SOC_BMIPS_BCM6338
        default "bcm6348" if SOC_BMIPS_BCM6348
        default "bcm6358" if SOC_BMIPS_BCM6358
        default "bcm63268" if SOC_BMIPS_BCM63268
@@ -33,6 +34,17 @@ config SOC_BMIPS_BCM6328
        help
          This supports BMIPS BCM6328 family including BCM63281 and BCM63283.
 
+config SOC_BMIPS_BCM6338
+       bool "BMIPS BCM6338 family"
+       select SUPPORTS_BIG_ENDIAN
+       select SUPPORTS_CPU_MIPS32_R1
+       select MIPS_TUNE_4KC
+       select MIPS_L1_CACHE_SHIFT_4
+       select SWAP_IO_SPACE
+       select SYSRESET_SYSCON
+       help
+         This supports BMIPS BCM6338 family.
+
 config SOC_BMIPS_BCM6348
        bool "BMIPS BCM6348 family"
        select SUPPORTS_BIG_ENDIAN

diff --git a/arch/mips/mach-bmips/include/ioremap.h b/arch/mips/mach-bmips/include/ioremap.h
index d3dc0b817e590251f3c1e264b4780c468f318746..a57f55d1b40fc5650f00e5eaa7593ea1f9de3543 100644 (file)
--- a/arch/mips/mach-bmips/include/ioremap.h
+++ b/arch/mips/mach-bmips/include/ioremap.h
@@ -18,7 +18,8 @@ static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr,
 
 static inline int is_bmips_internal_registers(phys_addr_t offset)
 {
-#if defined(CONFIG_SOC_BMIPS_BCM6348) || \
+#if defined(CONFIG_SOC_BMIPS_BCM6338) || \
+       defined(CONFIG_SOC_BMIPS_BCM6348) || \
        defined(CONFIG_SOC_BMIPS_BCM6358)
        if (offset >= 0xfffe0000)
                return 1;

diff --git a/include/configs/bmips_bcm6338.h b/include/configs/bmips_bcm6338.h
new file mode 100644 (file)
index 0000000..52d72c8
--- /dev/null
+++ b/include/configs/bmips_bcm6338.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef __CONFIG_BMIPS_BCM6338_H
+#define __CONFIG_BMIPS_BCM6338_H
+
+/* CPU */
+#define CONFIG_SYS_MIPS_TIMER_FREQ     120000000
+
+/* RAM */
+#define CONFIG_NR_DRAM_BANKS           1
+#define CONFIG_SYS_SDRAM_BASE          0x80000000
+
+/* U-Boot */
+#define CONFIG_SYS_LOAD_ADDR           CONFIG_SYS_SDRAM_BASE + 0x100000
+
+#if defined(CONFIG_BMIPS_BOOT_RAM)
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_SYS_INIT_SP_OFFSET      0x2000
+#endif
+
+#define CONFIG_SYS_FLASH_BASE                  0xbfc00000
+#define CONFIG_SYS_FLASH_EMPTY_INFO
+#define CONFIG_SYS_FLASH_PROTECTION
+#define CONFIG_SYS_MAX_FLASH_BANKS_DETECT      1
+
+#endif /* __CONFIG_BMIPS_BCM6338_H */

diff --git a/include/dt-bindings/clock/bcm6338-clock.h b/include/dt-bindings/clock/bcm6338-clock.h
new file mode 100644 (file)
index 0000000..3439c10
--- /dev/null
+++ b/include/dt-bindings/clock/bcm6338-clock.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_BCM6338_H
+#define __DT_BINDINGS_CLOCK_BCM6338_H
+
+#define BCM6338_CLK_ADSL       0
+#define BCM6338_CLK_MPI                1
+#define BCM6338_CLK_SDRAM      2
+#define BCM6338_CLK_ENET       4
+#define BCM6338_CLK_SAR                5
+#define BCM6338_CLK_SPI                9
+
+#endif /* __DT_BINDINGS_CLOCK_BCM6338_H */

diff --git a/include/dt-bindings/reset/bcm6338-reset.h b/include/dt-bindings/reset/bcm6338-reset.h
new file mode 100644 (file)
index 0000000..17a5e12
--- /dev/null
+++ b/include/dt-bindings/reset/bcm6338-reset.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef __DT_BINDINGS_RESET_BCM6338_H
+#define __DT_BINDINGS_RESET_BCM6338_H
+
+#define BCM6338_RST_SPI                0
+#define BCM6338_RST_ENET       2
+#define BCM6338_RST_USBH       3
+#define BCM6338_RST_USBS       4
+#define BCM6338_RST_ADSL       5
+#define BCM6338_RST_DMAMEM     6
+#define BCM6338_RST_SAR                7
+#define BCM6338_RST_ACLC       8
+#define BCM6338_RST_ADSL_MIPS  10
+
+#endif /* __DT_BINDINGS_RESET_BCM6338_H */