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-rw-r--r--arch/mips/bcm63xx/Makefile7
-rw-r--r--arch/mips/bcm63xx/boards/board_bcm963xx.c71
-rw-r--r--arch/mips/bcm63xx/clk.c34
-rw-r--r--arch/mips/bcm63xx/nvram.c107
-rw-r--r--arch/mips/bcm63xx/reset.c223
5 files changed, 365 insertions, 77 deletions
diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile
index 9bbb30a9dc20..ac2807397c1c 100644
--- a/arch/mips/bcm63xx/Makefile
+++ b/arch/mips/bcm63xx/Makefile
@@ -1,6 +1,7 @@
-obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
- dev-dsp.o dev-enet.o dev-flash.o dev-pcmcia.o dev-rng.o \
- dev-spi.o dev-uart.o dev-wdt.o dev-usb-usbd.o
+obj-y += clk.o cpu.o cs.o gpio.o irq.o nvram.o prom.o reset.o \
+ setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \
+ dev-pcmcia.o dev-rng.o dev-spi.o dev-uart.o dev-wdt.o \
+ dev-usb-usbd.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-y += boards/
diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c
index 1cd4d73f23c7..73be9b349690 100644
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -18,6 +18,7 @@
#include <bcm63xx_dev_uart.h>
#include <bcm63xx_regs.h>
#include <bcm63xx_io.h>
+#include <bcm63xx_nvram.h>
#include <bcm63xx_dev_pci.h>
#include <bcm63xx_dev_enet.h>
#include <bcm63xx_dev_dsp.h>
@@ -29,8 +30,6 @@
#define PFX "board_bcm963xx: "
-static struct bcm963xx_nvram nvram;
-static unsigned int mac_addr_used;
static struct board_info board;
/*
@@ -716,50 +715,14 @@ const char *board_get_name(void)
}
/*
- * register & return a new board mac address
- */
-static int board_get_mac_address(u8 *mac)
-{
- u8 *oui;
- 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);
- oui = mac + ETH_ALEN/2 - 1;
- count = mac_addr_used;
-
- while (count--) {
- u8 *p = mac + ETH_ALEN - 1;
-
- do {
- (*p)++;
- if (*p != 0)
- break;
- p--;
- } while (p != oui);
-
- if (p == oui) {
- printk(KERN_ERR PFX "unable to fetch mac address\n");
- return -ENODEV;
- }
- }
-
- mac_addr_used++;
- return 0;
-}
-
-/*
* 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;
+ unsigned int i;
+ u8 *boot_addr, *cfe;
char cfe_version[32];
+ char *board_name;
u32 val;
/* read base address of boot chip select (0)
@@ -782,27 +745,15 @@ void __init board_prom_init(void)
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) {
+ if (bcm63xx_nvram_init(boot_addr + BCM963XX_NVRAM_OFFSET)) {
printk(KERN_ERR PFX "invalid nvram checksum\n");
return;
}
+ board_name = bcm63xx_nvram_get_name();
/* find board by name */
for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
- if (strncmp(nvram.name, bcm963xx_boards[i]->name,
- sizeof(nvram.name)))
+ if (strncmp(board_name, bcm963xx_boards[i]->name, 16))
continue;
/* copy, board desc array is marked initdata */
memcpy(&board, bcm963xx_boards[i], sizeof(board));
@@ -812,7 +763,7 @@ void __init board_prom_init(void)
/* bail out if board is not found, will complain later */
if (!board.name[0]) {
char name[17];
- memcpy(name, nvram.name, 16);
+ memcpy(name, board_name, 16);
name[16] = 0;
printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
name);
@@ -890,11 +841,11 @@ int __init board_register_devices(void)
bcm63xx_pcmcia_register();
if (board.has_enet0 &&
- !board_get_mac_address(board.enet0.mac_addr))
+ !bcm63xx_nvram_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_nvram_get_mac_address(board.enet1.mac_addr))
bcm63xx_enet_register(1, &board.enet1);
if (board.has_usbd)
@@ -907,7 +858,7 @@ int __init board_register_devices(void)
* do this after registering enet devices
*/
#ifdef CONFIG_SSB_PCIHOST
- if (!board_get_mac_address(bcm63xx_sprom.il0mac)) {
+ if (!bcm63xx_nvram_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_register_fallback_sprom(
diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index dff79ab6005e..b9e948d59430 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -14,6 +14,7 @@
#include <bcm63xx_cpu.h>
#include <bcm63xx_io.h>
#include <bcm63xx_regs.h>
+#include <bcm63xx_reset.h>
#include <bcm63xx_clk.h>
static DEFINE_MUTEX(clocks_mutex);
@@ -124,15 +125,10 @@ static void enetsw_set(struct clk *clk, int enable)
CKCTL_6368_SWPKT_USB_EN |
CKCTL_6368_SWPKT_SAR_EN, enable);
if (enable) {
- u32 val;
-
/* reset switch core afer clock change */
- val = bcm_perf_readl(PERF_SOFTRESET_6368_REG);
- val &= ~SOFTRESET_6368_ENETSW_MASK;
- bcm_perf_writel(val, PERF_SOFTRESET_6368_REG);
+ bcm63xx_core_set_reset(BCM63XX_RESET_ENETSW, 1);
msleep(10);
- val |= SOFTRESET_6368_ENETSW_MASK;
- bcm_perf_writel(val, PERF_SOFTRESET_6368_REG);
+ bcm63xx_core_set_reset(BCM63XX_RESET_ENETSW, 0);
msleep(10);
}
}
@@ -222,15 +218,10 @@ static void xtm_set(struct clk *clk, int enable)
CKCTL_6368_SWPKT_SAR_EN, enable);
if (enable) {
- u32 val;
-
/* reset sar core afer clock change */
- val = bcm_perf_readl(PERF_SOFTRESET_6368_REG);
- val &= ~SOFTRESET_6368_SAR_MASK;
- bcm_perf_writel(val, PERF_SOFTRESET_6368_REG);
+ bcm63xx_core_set_reset(BCM63XX_RESET_SAR, 1);
mdelay(1);
- val |= SOFTRESET_6368_SAR_MASK;
- bcm_perf_writel(val, PERF_SOFTRESET_6368_REG);
+ bcm63xx_core_set_reset(BCM63XX_RESET_SAR, 0);
mdelay(1);
}
}
@@ -253,6 +244,19 @@ static struct clk clk_ipsec = {
};
/*
+ * PCIe clock
+ */
+
+static void pcie_set(struct clk *clk, int enable)
+{
+ bcm_hwclock_set(CKCTL_6328_PCIE_EN, enable);
+}
+
+static struct clk clk_pcie = {
+ .set = pcie_set,
+};
+
+/*
* Internal peripheral clock
*/
static struct clk clk_periph = {
@@ -313,6 +317,8 @@ struct clk *clk_get(struct device *dev, const char *id)
return &clk_pcm;
if (BCMCPU_IS_6368() && !strcmp(id, "ipsec"))
return &clk_ipsec;
+ if (BCMCPU_IS_6328() && !strcmp(id, "pcie"))
+ return &clk_pcie;
return ERR_PTR(-ENOENT);
}
diff --git a/arch/mips/bcm63xx/nvram.c b/arch/mips/bcm63xx/nvram.c
new file mode 100644
index 000000000000..620611680839
--- /dev/null
+++ b/arch/mips/bcm63xx/nvram.c
@@ -0,0 +1,107 @@
+/*
+ * 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>
+ * Copyright (C) 2012 Jonas Gorski <jonas.gorski@gmail.com>
+ */
+
+#define pr_fmt(fmt) "bcm63xx_nvram: " fmt
+
+#include <linux/init.h>
+#include <linux/crc32.h>
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/if_ether.h>
+
+#include <bcm63xx_nvram.h>
+
+/*
+ * nvram structure
+ */
+struct bcm963xx_nvram {
+ u32 version;
+ u8 reserved1[256];
+ u8 name[16];
+ u32 main_tp_number;
+ u32 psi_size;
+ u32 mac_addr_count;
+ u8 mac_addr_base[ETH_ALEN];
+ u8 reserved2[2];
+ u32 checksum_old;
+ u8 reserved3[720];
+ u32 checksum_high;
+};
+
+static struct bcm963xx_nvram nvram;
+static int mac_addr_used;
+
+int __init bcm63xx_nvram_init(void *addr)
+{
+ unsigned int check_len;
+ u32 crc, expected_crc;
+
+ /* extract nvram data */
+ memcpy(&nvram, addr, sizeof(nvram));
+
+ /* check checksum before using data */
+ if (nvram.version <= 4) {
+ check_len = offsetof(struct bcm963xx_nvram, reserved3);
+ expected_crc = nvram.checksum_old;
+ nvram.checksum_old = 0;
+ } else {
+ check_len = sizeof(nvram);
+ expected_crc = nvram.checksum_high;
+ nvram.checksum_high = 0;
+ }
+
+ crc = crc32_le(~0, (u8 *)&nvram, check_len);
+
+ if (crc != expected_crc)
+ return -EINVAL;
+
+ return 0;
+}
+
+u8 *bcm63xx_nvram_get_name(void)
+{
+ return nvram.name;
+}
+EXPORT_SYMBOL(bcm63xx_nvram_get_name);
+
+int bcm63xx_nvram_get_mac_address(u8 *mac)
+{
+ u8 *oui;
+ int count;
+
+ if (mac_addr_used >= nvram.mac_addr_count) {
+ pr_err("not enough mac addresses\n");
+ return -ENODEV;
+ }
+
+ memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
+ oui = mac + ETH_ALEN/2 - 1;
+ count = mac_addr_used;
+
+ while (count--) {
+ u8 *p = mac + ETH_ALEN - 1;
+
+ do {
+ (*p)++;
+ if (*p != 0)
+ break;
+ p--;
+ } while (p != oui);
+
+ if (p == oui) {
+ pr_err("unable to fetch mac address\n");
+ return -ENODEV;
+ }
+ }
+
+ mac_addr_used++;
+ return 0;
+}
+EXPORT_SYMBOL(bcm63xx_nvram_get_mac_address);
diff --git a/arch/mips/bcm63xx/reset.c b/arch/mips/bcm63xx/reset.c
new file mode 100644
index 000000000000..68a31bb90cbf
--- /dev/null
+++ b/arch/mips/bcm63xx/reset.c
@@ -0,0 +1,223 @@
+/*
+ * 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) 2012 Jonas Gorski <jonas.gorski@gmail.com>
+ */
+
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_io.h>
+#include <bcm63xx_regs.h>
+#include <bcm63xx_reset.h>
+
+#define __GEN_RESET_BITS_TABLE(__cpu) \
+ [BCM63XX_RESET_SPI] = BCM## __cpu ##_RESET_SPI, \
+ [BCM63XX_RESET_ENET] = BCM## __cpu ##_RESET_ENET, \
+ [BCM63XX_RESET_USBH] = BCM## __cpu ##_RESET_USBH, \
+ [BCM63XX_RESET_USBD] = BCM## __cpu ##_RESET_USBD, \
+ [BCM63XX_RESET_DSL] = BCM## __cpu ##_RESET_DSL, \
+ [BCM63XX_RESET_SAR] = BCM## __cpu ##_RESET_SAR, \
+ [BCM63XX_RESET_EPHY] = BCM## __cpu ##_RESET_EPHY, \
+ [BCM63XX_RESET_ENETSW] = BCM## __cpu ##_RESET_ENETSW, \
+ [BCM63XX_RESET_PCM] = BCM## __cpu ##_RESET_PCM, \
+ [BCM63XX_RESET_MPI] = BCM## __cpu ##_RESET_MPI, \
+ [BCM63XX_RESET_PCIE] = BCM## __cpu ##_RESET_PCIE, \
+ [BCM63XX_RESET_PCIE_EXT] = BCM## __cpu ##_RESET_PCIE_EXT,
+
+#define BCM6328_RESET_SPI SOFTRESET_6328_SPI_MASK
+#define BCM6328_RESET_ENET 0
+#define BCM6328_RESET_USBH SOFTRESET_6328_USBH_MASK
+#define BCM6328_RESET_USBD SOFTRESET_6328_USBS_MASK
+#define BCM6328_RESET_DSL 0
+#define BCM6328_RESET_SAR SOFTRESET_6328_SAR_MASK
+#define BCM6328_RESET_EPHY SOFTRESET_6328_EPHY_MASK
+#define BCM6328_RESET_ENETSW SOFTRESET_6328_ENETSW_MASK
+#define BCM6328_RESET_PCM SOFTRESET_6328_PCM_MASK
+#define BCM6328_RESET_MPI 0
+#define BCM6328_RESET_PCIE \
+ (SOFTRESET_6328_PCIE_MASK | \
+ SOFTRESET_6328_PCIE_CORE_MASK | \
+ SOFTRESET_6328_PCIE_HARD_MASK)
+#define BCM6328_RESET_PCIE_EXT SOFTRESET_6328_PCIE_EXT_MASK
+
+#define BCM6338_RESET_SPI SOFTRESET_6338_SPI_MASK
+#define BCM6338_RESET_ENET SOFTRESET_6338_ENET_MASK
+#define BCM6338_RESET_USBH SOFTRESET_6338_USBH_MASK
+#define BCM6338_RESET_USBD SOFTRESET_6338_USBS_MASK
+#define BCM6338_RESET_DSL SOFTRESET_6338_ADSL_MASK
+#define BCM6338_RESET_SAR SOFTRESET_6338_SAR_MASK
+#define BCM6338_RESET_EPHY 0
+#define BCM6338_RESET_ENETSW 0
+#define BCM6338_RESET_PCM 0
+#define BCM6338_RESET_MPI 0
+#define BCM6338_RESET_PCIE 0
+#define BCM6338_RESET_PCIE_EXT 0
+
+#define BCM6348_RESET_SPI SOFTRESET_6348_SPI_MASK
+#define BCM6348_RESET_ENET SOFTRESET_6348_ENET_MASK
+#define BCM6348_RESET_USBH SOFTRESET_6348_USBH_MASK
+#define BCM6348_RESET_USBD SOFTRESET_6348_USBS_MASK
+#define BCM6348_RESET_DSL SOFTRESET_6348_ADSL_MASK
+#define BCM6348_RESET_SAR SOFTRESET_6348_SAR_MASK
+#define BCM6348_RESET_EPHY 0
+#define BCM6348_RESET_ENETSW 0
+#define BCM6348_RESET_PCM 0
+#define BCM6348_RESET_MPI 0
+#define BCM6348_RESET_PCIE 0
+#define BCM6348_RESET_PCIE_EXT 0
+
+#define BCM6358_RESET_SPI SOFTRESET_6358_SPI_MASK
+#define BCM6358_RESET_ENET SOFTRESET_6358_ENET_MASK
+#define BCM6358_RESET_USBH SOFTRESET_6358_USBH_MASK
+#define BCM6358_RESET_USBD 0
+#define BCM6358_RESET_DSL SOFTRESET_6358_ADSL_MASK
+#define BCM6358_RESET_SAR SOFTRESET_6358_SAR_MASK
+#define BCM6358_RESET_EPHY SOFTRESET_6358_EPHY_MASK
+#define BCM6358_RESET_ENETSW 0
+#define BCM6358_RESET_PCM SOFTRESET_6358_PCM_MASK
+#define BCM6358_RESET_MPI SOFTRESET_6358_MPI_MASK
+#define BCM6358_RESET_PCIE 0
+#define BCM6358_RESET_PCIE_EXT 0
+
+#define BCM6368_RESET_SPI SOFTRESET_6368_SPI_MASK
+#define BCM6368_RESET_ENET 0
+#define BCM6368_RESET_USBH SOFTRESET_6368_USBH_MASK
+#define BCM6368_RESET_USBD SOFTRESET_6368_USBS_MASK
+#define BCM6368_RESET_DSL 0
+#define BCM6368_RESET_SAR SOFTRESET_6368_SAR_MASK
+#define BCM6368_RESET_EPHY SOFTRESET_6368_EPHY_MASK
+#define BCM6368_RESET_ENETSW 0
+#define BCM6368_RESET_PCM SOFTRESET_6368_PCM_MASK
+#define BCM6368_RESET_MPI SOFTRESET_6368_MPI_MASK
+#define BCM6368_RESET_PCIE 0
+#define BCM6368_RESET_PCIE_EXT 0
+
+#ifdef BCMCPU_RUNTIME_DETECT
+
+/*
+ * core reset bits
+ */
+static const u32 bcm6328_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6328)
+};
+
+static const u32 bcm6338_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6338)
+};
+
+static const u32 bcm6348_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6348)
+};
+
+static const u32 bcm6358_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6358)
+};
+
+static const u32 bcm6368_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6368)
+};
+
+const u32 *bcm63xx_reset_bits;
+static int reset_reg;
+
+static int __init bcm63xx_reset_bits_init(void)
+{
+ if (BCMCPU_IS_6328()) {
+ reset_reg = PERF_SOFTRESET_6328_REG;
+ bcm63xx_reset_bits = bcm6328_reset_bits;
+ } else if (BCMCPU_IS_6338()) {
+ reset_reg = PERF_SOFTRESET_REG;
+ bcm63xx_reset_bits = bcm6338_reset_bits;
+ } else if (BCMCPU_IS_6348()) {
+ reset_reg = PERF_SOFTRESET_REG;
+ bcm63xx_reset_bits = bcm6348_reset_bits;
+ } else if (BCMCPU_IS_6358()) {
+ reset_reg = PERF_SOFTRESET_6358_REG;
+ bcm63xx_reset_bits = bcm6358_reset_bits;
+ } else if (BCMCPU_IS_6368()) {
+ reset_reg = PERF_SOFTRESET_6368_REG;
+ bcm63xx_reset_bits = bcm6368_reset_bits;
+ }
+
+ return 0;
+}
+#else
+
+#ifdef CONFIG_BCM63XX_CPU_6328
+static const u32 bcm63xx_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6328)
+};
+#define reset_reg PERF_SOFTRESET_6328_REG
+#endif
+
+#ifdef CONFIG_BCM63XX_CPU_6338
+static const u32 bcm63xx_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6338)
+};
+#define reset_reg PERF_SOFTRESET_REG
+#endif
+
+#ifdef CONFIG_BCM63XX_CPU_6345
+static const u32 bcm63xx_reset_bits[] = { };
+#define reset_reg 0
+#endif
+
+#ifdef CONFIG_BCM63XX_CPU_6348
+static const u32 bcm63xx_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6348)
+};
+#define reset_reg PERF_SOFTRESET_REG
+#endif
+
+#ifdef CONFIG_BCM63XX_CPU_6358
+static const u32 bcm63xx_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6358)
+};
+#define reset_reg PERF_SOFTRESET_6358_REG
+#endif
+
+#ifdef CONFIG_BCM63XX_CPU_6368
+static const u32 bcm63xx_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6368)
+};
+#define reset_reg PERF_SOFTRESET_6368_REG
+#endif
+
+static int __init bcm63xx_reset_bits_init(void) { return 0; }
+#endif
+
+static DEFINE_SPINLOCK(reset_mutex);
+
+static void __bcm63xx_core_set_reset(u32 mask, int enable)
+{
+ unsigned long flags;
+ u32 val;
+
+ if (!mask)
+ return;
+
+ spin_lock_irqsave(&reset_mutex, flags);
+ val = bcm_perf_readl(reset_reg);
+
+ if (enable)
+ val &= ~mask;
+ else
+ val |= mask;
+
+ bcm_perf_writel(val, reset_reg);
+ spin_unlock_irqrestore(&reset_mutex, flags);
+}
+
+void bcm63xx_core_set_reset(enum bcm63xx_core_reset core, int reset)
+{
+ __bcm63xx_core_set_reset(bcm63xx_reset_bits[core], reset);
+}
+EXPORT_SYMBOL(bcm63xx_core_set_reset);
+
+postcore_initcall(bcm63xx_reset_bits_init);