MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 851 insertions, 0 deletions

diff --git a/arch/mips/bcm63xx/boards/Kconfig b/arch/mips/bcm63xx/boards/Kconfig
new file mode 100644
index 0000000..c6aed33
--- /dev/null
+++ b/arch/mips/bcm63xx/boards/Kconfig
@@ -0,0 +1,11 @@
+choice
+	prompt "Board support"
+	depends on BCM63XX
+	default BOARD_BCM963XX
+
+config BOARD_BCM963XX
+       bool "Generic Broadcom 963xx boards"
+	select SSB
+       help
+
+endchoice
diff --git a/arch/mips/bcm63xx/boards/Makefile b/arch/mips/bcm63xx/boards/Makefile
new file mode 100644
index 0000000..e5cc86d
--- /dev/null
+++ b/arch/mips/bcm63xx/boards/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_BOARD_BCM963XX)		+= board_bcm963xx.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c
new file mode 100644
index 0000000..fd77f54
--- /dev/null
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -0,0 +1,837 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/ssb/ssb.h>
+#include <asm/addrspace.h>
+#include <bcm63xx_board.h>
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_regs.h>
+#include <bcm63xx_io.h>
+#include <bcm63xx_board.h>
+#include <bcm63xx_dev_pci.h>
+#include <bcm63xx_dev_enet.h>
+#include <bcm63xx_dev_dsp.h>
+#include <board_bcm963xx.h>
+
+#define PFX	"board_bcm963xx: "
+
+static struct bcm963xx_nvram nvram;
+static unsigned int mac_addr_used;
+static struct board_info board;
+
+/*
+ * known 6338 boards
+ */
+#ifdef CONFIG_BCM63XX_CPU_6338
+static struct board_info __initdata board_96338gw = {
+	.name				= "96338GW",
+	.expected_cpu_id		= 0x6338,
+
+	.has_enet0			= 1,
+	.enet0 = {
+		.force_speed_100	= 1,
+		.force_duplex_full	= 1,
+	},
+
+	.has_ohci0			= 1,
+
+	.leds = {
+		{
+			.name		= "adsl",
+			.gpio		= 3,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ses",
+			.gpio		= 5,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp-fail",
+			.gpio		= 4,
+			.active_low	= 1,
+		},
+		{
+			.name		= "power",
+			.gpio		= 0,
+			.active_low	= 1,
+			.default_trigger = "default-on",
+		},
+		{
+			.name		= "stop",
+			.gpio		= 1,
+			.active_low	= 1,
+		}
+	},
+};
+
+static struct board_info __initdata board_96338w = {
+	.name				= "96338W",
+	.expected_cpu_id		= 0x6338,
+
+	.has_enet0			= 1,
+	.enet0 = {
+		.force_speed_100	= 1,
+		.force_duplex_full	= 1,
+	},
+
+	.leds = {
+		{
+			.name		= "adsl",
+			.gpio		= 3,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ses",
+			.gpio		= 5,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp-fail",
+			.gpio		= 4,
+			.active_low	= 1,
+		},
+		{
+			.name		= "power",
+			.gpio		= 0,
+			.active_low	= 1,
+			.default_trigger = "default-on",
+		},
+		{
+			.name		= "stop",
+			.gpio		= 1,
+			.active_low	= 1,
+		},
+	},
+};
+#endif
+
+/*
+ * known 6345 boards
+ */
+#ifdef CONFIG_BCM63XX_CPU_6345
+static struct board_info __initdata board_96345gw2 = {
+	.name				= "96345GW2",
+	.expected_cpu_id		= 0x6345,
+};
+#endif
+
+/*
+ * known 6348 boards
+ */
+#ifdef CONFIG_BCM63XX_CPU_6348
+static struct board_info __initdata board_96348r = {
+	.name				= "96348R",
+	.expected_cpu_id		= 0x6348,
+
+	.has_enet0			= 1,
+	.has_pci			= 1,
+
+	.enet0 = {
+		.has_phy		= 1,
+		.use_internal_phy	= 1,
+	},
+
+	.leds = {
+		{
+			.name		= "adsl-fail",
+			.gpio		= 2,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp",
+			.gpio		= 3,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp-fail",
+			.gpio		= 4,
+			.active_low	= 1,
+		},
+		{
+			.name		= "power",
+			.gpio		= 0,
+			.active_low	= 1,
+			.default_trigger = "default-on",
+
+		},
+		{
+			.name		= "stop",
+			.gpio		= 1,
+			.active_low	= 1,
+		},
+	},
+};
+
+static struct board_info __initdata board_96348gw_10 = {
+	.name				= "96348GW-10",
+	.expected_cpu_id		= 0x6348,
+
+	.has_enet0			= 1,
+	.has_enet1			= 1,
+	.has_pci			= 1,
+
+	.enet0 = {
+		.has_phy		= 1,
+		.use_internal_phy	= 1,
+	},
+	.enet1 = {
+		.force_speed_100	= 1,
+		.force_duplex_full	= 1,
+	},
+
+	.has_ohci0			= 1,
+	.has_pccard			= 1,
+	.has_ehci0			= 1,
+
+	.has_dsp			= 1,
+	.dsp = {
+		.gpio_rst		= 6,
+		.gpio_int		= 34,
+		.cs			= 2,
+		.ext_irq		= 2,
+	},
+
+	.leds = {
+		{
+			.name		= "adsl-fail",
+			.gpio		= 2,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp",
+			.gpio		= 3,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp-fail",
+			.gpio		= 4,
+			.active_low	= 1,
+		},
+		{
+			.name		= "power",
+			.gpio		= 0,
+			.active_low	= 1,
+			.default_trigger = "default-on",
+		},
+		{
+			.name		= "stop",
+			.gpio		= 1,
+			.active_low	= 1,
+		},
+	},
+};
+
+static struct board_info __initdata board_96348gw_11 = {
+	.name				= "96348GW-11",
+	.expected_cpu_id		= 0x6348,
+
+	.has_enet0			= 1,
+	.has_enet1			= 1,
+	.has_pci			= 1,
+
+	.enet0 = {
+		.has_phy		= 1,
+		.use_internal_phy	= 1,
+	},
+
+	.enet1 = {
+		.force_speed_100	= 1,
+		.force_duplex_full	= 1,
+	},
+
+
+	.has_ohci0 = 1,
+	.has_pccard = 1,
+	.has_ehci0 = 1,
+
+	.leds = {
+		{
+			.name		= "adsl-fail",
+			.gpio		= 2,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp",
+			.gpio		= 3,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp-fail",
+			.gpio		= 4,
+			.active_low	= 1,
+		},
+		{
+			.name		= "power",
+			.gpio		= 0,
+			.active_low	= 1,
+			.default_trigger = "default-on",
+		},
+		{
+			.name		= "stop",
+			.gpio		= 1,
+			.active_low	= 1,
+		},
+	},
+};
+
+static struct board_info __initdata board_96348gw = {
+	.name				= "96348GW",
+	.expected_cpu_id		= 0x6348,
+
+	.has_enet0			= 1,
+	.has_enet1			= 1,
+	.has_pci			= 1,
+
+	.enet0 = {
+		.has_phy		= 1,
+		.use_internal_phy	= 1,
+	},
+	.enet1 = {
+		.force_speed_100	= 1,
+		.force_duplex_full	= 1,
+	},
+
+	.has_ohci0 = 1,
+
+	.has_dsp			= 1,
+	.dsp = {
+		.gpio_rst		= 6,
+		.gpio_int		= 34,
+		.ext_irq		= 2,
+		.cs			= 2,
+	},
+
+	.leds = {
+		{
+			.name		= "adsl-fail",
+			.gpio		= 2,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp",
+			.gpio		= 3,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp-fail",
+			.gpio		= 4,
+			.active_low	= 1,
+		},
+		{
+			.name		= "power",
+			.gpio		= 0,
+			.active_low	= 1,
+			.default_trigger = "default-on",
+		},
+		{
+			.name		= "stop",
+			.gpio		= 1,
+			.active_low	= 1,
+		},
+	},
+};
+
+static struct board_info __initdata board_FAST2404 = {
+        .name                           = "F@ST2404",
+        .expected_cpu_id                = 0x6348,
+
+        .has_enet0                      = 1,
+        .has_enet1                      = 1,
+        .has_pci                        = 1,
+
+        .enet0 = {
+                .has_phy                = 1,
+                .use_internal_phy       = 1,
+        },
+
+        .enet1 = {
+                .force_speed_100        = 1,
+                .force_duplex_full      = 1,
+        },
+
+
+        .has_ohci0 = 1,
+        .has_pccard = 1,
+        .has_ehci0 = 1,
+};
+
+static struct board_info __initdata board_DV201AMR = {
+	.name				= "DV201AMR",
+	.expected_cpu_id		= 0x6348,
+
+	.has_pci			= 1,
+	.has_ohci0			= 1,
+
+	.has_enet0			= 1,
+	.has_enet1			= 1,
+	.enet0 = {
+		.has_phy		= 1,
+		.use_internal_phy	= 1,
+	},
+	.enet1 = {
+		.force_speed_100	= 1,
+		.force_duplex_full	= 1,
+	},
+};
+
+static struct board_info __initdata board_96348gw_a = {
+	.name				= "96348GW-A",
+	.expected_cpu_id		= 0x6348,
+
+	.has_enet0			= 1,
+	.has_enet1			= 1,
+	.has_pci			= 1,
+
+	.enet0 = {
+		.has_phy		= 1,
+		.use_internal_phy	= 1,
+	},
+	.enet1 = {
+		.force_speed_100	= 1,
+		.force_duplex_full	= 1,
+	},
+
+	.has_ohci0 = 1,
+};
+#endif
+
+/*
+ * known 6358 boards
+ */
+#ifdef CONFIG_BCM63XX_CPU_6358
+static struct board_info __initdata board_96358vw = {
+	.name				= "96358VW",
+	.expected_cpu_id		= 0x6358,
+
+	.has_enet0			= 1,
+	.has_enet1			= 1,
+	.has_pci			= 1,
+
+	.enet0 = {
+		.has_phy		= 1,
+		.use_internal_phy	= 1,
+	},
+
+	.enet1 = {
+		.force_speed_100	= 1,
+		.force_duplex_full	= 1,
+	},
+
+
+	.has_ohci0 = 1,
+	.has_pccard = 1,
+	.has_ehci0 = 1,
+
+	.leds = {
+		{
+			.name		= "adsl-fail",
+			.gpio		= 15,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp",
+			.gpio		= 22,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp-fail",
+			.gpio		= 23,
+			.active_low	= 1,
+		},
+		{
+			.name		= "power",
+			.gpio		= 4,
+			.default_trigger = "default-on",
+		},
+		{
+			.name		= "stop",
+			.gpio		= 5,
+		},
+	},
+};
+
+static struct board_info __initdata board_96358vw2 = {
+	.name				= "96358VW2",
+	.expected_cpu_id		= 0x6358,
+
+	.has_enet0			= 1,
+	.has_enet1			= 1,
+	.has_pci			= 1,
+
+	.enet0 = {
+		.has_phy		= 1,
+		.use_internal_phy	= 1,
+	},
+
+	.enet1 = {
+		.force_speed_100	= 1,
+		.force_duplex_full	= 1,
+	},
+
+
+	.has_ohci0 = 1,
+	.has_pccard = 1,
+	.has_ehci0 = 1,
+
+	.leds = {
+		{
+			.name		= "adsl",
+			.gpio		= 22,
+			.active_low	= 1,
+		},
+		{
+			.name		= "ppp-fail",
+			.gpio		= 23,
+		},
+		{
+			.name		= "power",
+			.gpio		= 5,
+			.active_low	= 1,
+			.default_trigger = "default-on",
+		},
+		{
+			.name		= "stop",
+			.gpio		= 4,
+			.active_low	= 1,
+		},
+	},
+};
+
+static struct board_info __initdata board_AGPFS0 = {
+	.name                           = "AGPF-S0",
+	.expected_cpu_id                = 0x6358,
+
+	.has_enet0                      = 1,
+	.has_enet1                      = 1,
+	.has_pci                        = 1,
+
+	.enet0 = {
+		.has_phy                = 1,
+		.use_internal_phy       = 1,
+	},
+
+	.enet1 = {
+		.force_speed_100        = 1,
+		.force_duplex_full      = 1,
+	},
+
+	.has_ohci0 = 1,
+	.has_ehci0 = 1,
+};
+#endif
+
+/*
+ * all boards
+ */
+static const struct board_info __initdata *bcm963xx_boards[] = {
+#ifdef CONFIG_BCM63XX_CPU_6338
+	&board_96338gw,
+	&board_96338w,
+#endif
+#ifdef CONFIG_BCM63XX_CPU_6345
+	&board_96345gw2,
+#endif
+#ifdef CONFIG_BCM63XX_CPU_6348
+	&board_96348r,
+	&board_96348gw,
+	&board_96348gw_10,
+	&board_96348gw_11,
+	&board_FAST2404,
+	&board_DV201AMR,
+	&board_96348gw_a,
+#endif
+
+#ifdef CONFIG_BCM63XX_CPU_6358
+	&board_96358vw,
+	&board_96358vw2,
+	&board_AGPFS0,
+#endif
+};
+
+/*
+ * early init callback, read nvram data from flash and checksum it
+ */
+void __init board_prom_init(void)
+{
+	unsigned int check_len, i;
+	u8 *boot_addr, *cfe, *p;
+	char cfe_version[32];
+	u32 val;
+
+	/* read base address of boot chip select (0)
+	 * 6345 does not have MPI but boots from standard
+	 * MIPS Flash address */
+	if (BCMCPU_IS_6345())
+		val = 0x1fc00000;
+	else {
+		val = bcm_mpi_readl(MPI_CSBASE_REG(0));
+		val &= MPI_CSBASE_BASE_MASK;
+	}
+	boot_addr = (u8 *)KSEG1ADDR(val);
+
+	/* dump cfe version */
+	cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
+	if (!memcmp(cfe, "cfe-v", 5))
+		snprintf(cfe_version, sizeof(cfe_version), "%u.%u.%u-%u.%u",
+			 cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
+	else
+		strcpy(cfe_version, "unknown");
+	printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
+
+	/* extract nvram data */
+	memcpy(&nvram, boot_addr + BCM963XX_NVRAM_OFFSET, sizeof(nvram));
+
+	/* check checksum before using data */
+	if (nvram.version <= 4)
+		check_len = offsetof(struct bcm963xx_nvram, checksum_old);
+	else
+		check_len = sizeof(nvram);
+	val = 0;
+	p = (u8 *)&nvram;
+	while (check_len--)
+		val += *p;
+	if (val) {
+		printk(KERN_ERR PFX "invalid nvram checksum\n");
+		return;
+	}
+
+	/* find board by name */
+	for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
+		if (strncmp(nvram.name, bcm963xx_boards[i]->name,
+			    sizeof(nvram.name)))
+			continue;
+		/* copy, board desc array is marked initdata */
+		memcpy(&board, bcm963xx_boards[i], sizeof(board));
+		break;
+	}
+
+	/* bail out if board is not found, will complain later */
+	if (!board.name[0]) {
+		char name[17];
+		memcpy(name, nvram.name, 16);
+		name[16] = 0;
+		printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
+		       name);
+		return;
+	}
+
+	/* setup pin multiplexing depending on board enabled device,
+	 * this has to be done this early since PCI init is done
+	 * inside arch_initcall */
+	val = 0;
+
+#ifdef CONFIG_PCI
+	if (board.has_pci) {
+		bcm63xx_pci_enabled = 1;
+		if (BCMCPU_IS_6348())
+			val |= GPIO_MODE_6348_G2_PCI;
+	}
+#endif
+
+	if (board.has_pccard) {
+		if (BCMCPU_IS_6348())
+			val |= GPIO_MODE_6348_G1_MII_PCCARD;
+	}
+
+	if (board.has_enet0 && !board.enet0.use_internal_phy) {
+		if (BCMCPU_IS_6348())
+			val |= GPIO_MODE_6348_G3_EXT_MII |
+				GPIO_MODE_6348_G0_EXT_MII;
+	}
+
+	if (board.has_enet1 && !board.enet1.use_internal_phy) {
+		if (BCMCPU_IS_6348())
+			val |= GPIO_MODE_6348_G3_EXT_MII |
+				GPIO_MODE_6348_G0_EXT_MII;
+	}
+
+	bcm_gpio_writel(val, GPIO_MODE_REG);
+}
+
+/*
+ * second stage init callback, good time to panic if we couldn't
+ * identify on which board we're running since early printk is working
+ */
+void __init board_setup(void)
+{
+	if (!board.name[0])
+		panic("unable to detect bcm963xx board");
+	printk(KERN_INFO PFX "board name: %s\n", board.name);
+
+	/* make sure we're running on expected cpu */
+	if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
+		panic("unexpected CPU for bcm963xx board");
+}
+
+/*
+ * return board name for /proc/cpuinfo
+ */
+const char *board_get_name(void)
+{
+	return board.name;
+}
+
+/*
+ * register & return a new board mac address
+ */
+static int board_get_mac_address(u8 *mac)
+{
+	u8 *p;
+	int count;
+
+	if (mac_addr_used >= nvram.mac_addr_count) {
+		printk(KERN_ERR PFX "not enough mac address\n");
+		return -ENODEV;
+	}
+
+	memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
+	p = mac + ETH_ALEN - 1;
+	count = mac_addr_used;
+
+	while (count--) {
+		do {
+			(*p)++;
+			if (*p != 0)
+				break;
+			p--;
+		} while (p != mac);
+	}
+
+	if (p == mac) {
+		printk(KERN_ERR PFX "unable to fetch mac address\n");
+		return -ENODEV;
+	}
+
+	mac_addr_used++;
+	return 0;
+}
+
+static struct mtd_partition mtd_partitions[] = {
+	{
+		.name		= "cfe",
+		.offset		= 0x0,
+		.size		= 0x40000,
+	}
+};
+
+static struct physmap_flash_data flash_data = {
+	.width			= 2,
+	.nr_parts		= ARRAY_SIZE(mtd_partitions),
+	.parts			= mtd_partitions,
+};
+
+static struct resource mtd_resources[] = {
+	{
+		.start		= 0,	/* filled at runtime */
+		.end		= 0,	/* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device mtd_dev = {
+	.name			= "physmap-flash",
+	.resource		= mtd_resources,
+	.num_resources		= ARRAY_SIZE(mtd_resources),
+	.dev			= {
+		.platform_data	= &flash_data,
+	},
+};
+
+/*
+ * Register a sane SPROMv2 to make the on-board
+ * bcm4318 WLAN work
+ */
+#ifdef CONFIG_SSB_PCIHOST
+static struct ssb_sprom bcm63xx_sprom = {
+	.revision		= 0x02,
+	.board_rev		= 0x17,
+	.country_code		= 0x0,
+	.ant_available_bg 	= 0x3,
+	.pa0b0			= 0x15ae,
+	.pa0b1			= 0xfa85,
+	.pa0b2			= 0xfe8d,
+	.pa1b0			= 0xffff,
+	.pa1b1			= 0xffff,
+	.pa1b2			= 0xffff,
+	.gpio0			= 0xff,
+	.gpio1			= 0xff,
+	.gpio2			= 0xff,
+	.gpio3			= 0xff,
+	.maxpwr_bg		= 0x004c,
+	.itssi_bg		= 0x00,
+	.boardflags_lo		= 0x2848,
+	.boardflags_hi		= 0x0000,
+};
+#endif
+
+static struct gpio_led_platform_data bcm63xx_led_data;
+
+static struct platform_device bcm63xx_gpio_leds = {
+	.name			= "leds-gpio",
+	.id			= 0,
+	.dev.platform_data	= &bcm63xx_led_data,
+};
+
+/*
+ * third stage init callback, register all board devices.
+ */
+int __init board_register_devices(void)
+{
+	u32 val;
+
+	if (board.has_enet0 &&
+	    !board_get_mac_address(board.enet0.mac_addr))
+		bcm63xx_enet_register(0, &board.enet0);
+
+	if (board.has_enet1 &&
+	    !board_get_mac_address(board.enet1.mac_addr))
+		bcm63xx_enet_register(1, &board.enet1);
+
+	if (board.has_dsp)
+		bcm63xx_dsp_register(&board.dsp);
+
+	/* Generate MAC address for WLAN and
+	 * register our SPROM */
+#ifdef CONFIG_SSB_PCIHOST
+	if (!board_get_mac_address(bcm63xx_sprom.il0mac)) {
+		memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN);
+		memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
+		if (ssb_arch_set_fallback_sprom(&bcm63xx_sprom) < 0)
+			printk(KERN_ERR "failed to register fallback SPROM\n");
+	}
+#endif
+
+	/* read base address of boot chip select (0) */
+	if (BCMCPU_IS_6345())
+		val = 0x1fc00000;
+	else {
+		val = bcm_mpi_readl(MPI_CSBASE_REG(0));
+		val &= MPI_CSBASE_BASE_MASK;
+	}
+	mtd_resources[0].start = val;
+	mtd_resources[0].end = 0x1FFFFFFF;
+
+	platform_device_register(&mtd_dev);
+
+	bcm63xx_led_data.num_leds = ARRAY_SIZE(board.leds);
+	bcm63xx_led_data.leds = board.leds;
+
+	platform_device_register(&bcm63xx_gpio_leds);
+
+	return 0;
+}
+