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authorLinus Torvalds <torvalds@linux-foundation.org>2024-07-20 09:03:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-07-20 09:03:36 -0700
commitd2be38b9a5514dbc7dc0c96a2a7f619fcddce00d (patch)
tree8588d09562d7171ab95b07d9c00fa18b6b691bd3 /arch/mips
parent3c3ff7be9729959699eb6cbc7fd7303566d74069 (diff)
parentbb2d63500b5c8fd1ea425caffe2d44c931fefc6b (diff)
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Merge tag 'mips_6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Thomas Bogendoerfer: - add support for Realtek RTL9302C - add support for Mobileye EyeQ6H - add support for Mobileye EyeQ OLB system controller - improve r4k clocksource - add mode for emulating ieee754 NAN2008 - rework for BMIPS CBR address handling - fixes for Loongson 2K1000 - defconfig updates - cleanups and fixes * tag 'mips_6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (58 commits) MIPS: config: Add ip30_defconfig MIPS: config: lemote2f: Regenerate defconfig MIPS: config: generic: Add board-litex MIPS: config: Enable MSA and virtualization for MIPS64R6 MIPS: Fix fallback march for SB1 mips: dts: realtek: Add RTL9302C board mips: generic: add fdt fixup for Realtek reference board mips: select REALTEK_OTTO_TIMER for Realtek platforms dt-bindings: interrupt-controller: realtek,rtl-intc: Add rtl9300-intc dt-bindings: mips: realtek: Add rtl930x-soc compatible dt-bindings: vendor-prefixes: Add Cameo Communications mips: dts: realtek: add device_type property to cpu node mips: dts: realtek: use "serial" instead of "uart" in node name MIPS: Implement ieee754 NAN2008 emulation mode MIPS: lantiq: improve USB initialization MIPS: GIC: Generate redirect block accessors MIPS: CPS: Add a couple of multi-cluster utility functions MIPS: Octeron: remove source file executable bit MAINTAINERS: Mobileye: add OLB drivers and dt-bindings MIPS: mobileye: eyeq5: add OLB system-controller node ...
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/Kbuild.platforms2
-rw-r--r--arch/mips/Kconfig11
-rw-r--r--arch/mips/Makefile2
-rw-r--r--arch/mips/alchemy/common/platform.c8
-rw-r--r--arch/mips/alchemy/devboards/db1000.c80
-rw-r--r--arch/mips/bcm47xx/prom.c3
-rw-r--r--arch/mips/bcm47xx/setup.c8
-rw-r--r--arch/mips/bcm63xx/prom.c3
-rw-r--r--arch/mips/bcm63xx/setup.c8
-rw-r--r--arch/mips/bmips/dma.c2
-rw-r--r--arch/mips/bmips/setup.c35
-rw-r--r--arch/mips/boot/dts/Makefile2
-rw-r--r--arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi102
-rw-r--r--arch/mips/boot/dts/loongson/loongson64g_4core_ls7a.dts1
-rw-r--r--arch/mips/boot/dts/mobileye/Makefile1
-rw-r--r--arch/mips/boot/dts/mobileye/eyeq5-clocks.dtsi (renamed from arch/mips/boot/dts/mobileye/eyeq5-fixed-clocks.dtsi)54
-rw-r--r--arch/mips/boot/dts/mobileye/eyeq5-pins.dtsi125
-rw-r--r--arch/mips/boot/dts/mobileye/eyeq5.dtsi22
-rw-r--r--arch/mips/boot/dts/mobileye/eyeq6h-epm6.dts22
-rw-r--r--arch/mips/boot/dts/mobileye/eyeq6h-fixed-clocks.dtsi52
-rw-r--r--arch/mips/boot/dts/mobileye/eyeq6h-pins.dtsi88
-rw-r--r--arch/mips/boot/dts/mobileye/eyeq6h.dtsi98
-rw-r--r--arch/mips/boot/dts/realtek/Makefile1
-rw-r--r--arch/mips/boot/dts/realtek/cameo-rtl9302c-2x-rtl8224-2xge.dts73
-rw-r--r--arch/mips/boot/dts/realtek/rtl838x.dtsi1
-rw-r--r--arch/mips/boot/dts/realtek/rtl83xx.dtsi4
-rw-r--r--arch/mips/boot/dts/realtek/rtl930x.dtsi79
-rw-r--r--arch/mips/configs/ci20_defconfig1
-rw-r--r--arch/mips/configs/db1xxx_defconfig1
-rw-r--r--arch/mips/configs/eyeq5_defconfig2
-rw-r--r--arch/mips/configs/eyeq6_defconfig111
-rw-r--r--arch/mips/configs/generic/64r6.config2
-rw-r--r--arch/mips/configs/generic/board-litex.config8
-rw-r--r--arch/mips/configs/generic_defconfig1
-rw-r--r--arch/mips/configs/ip30_defconfig183
-rw-r--r--arch/mips/configs/lemote2f_defconfig54
-rw-r--r--arch/mips/crypto/poly1305-glue.c1
-rw-r--r--arch/mips/generic/Makefile1
-rw-r--r--arch/mips/generic/board-realtek.c79
-rw-r--r--arch/mips/include/asm/bmips.h1
-rw-r--r--arch/mips/include/asm/fpu.h15
-rw-r--r--arch/mips/include/asm/mach-loongson64/boot_param.h2
-rw-r--r--arch/mips/include/asm/mips-cps.h39
-rw-r--r--arch/mips/include/asm/mips-gic.h50
-rw-r--r--arch/mips/include/asm/pm.h22
-rw-r--r--arch/mips/include/asm/r4k-timer.h5
-rw-r--r--arch/mips/include/asm/sgi/ip22.h3
-rw-r--r--arch/mips/kernel/csrc-r4k.c24
-rw-r--r--arch/mips/kernel/elf.c4
-rw-r--r--arch/mips/kernel/fpu-probe.c9
-rw-r--r--arch/mips/kernel/mips-cm.c37
-rw-r--r--arch/mips/kernel/smp-bmips.c22
-rw-r--r--arch/mips/kernel/smp.c2
-rw-r--r--arch/mips/kernel/sync-r4k.c281
-rw-r--r--arch/mips/kvm/interrupt.h4
-rw-r--r--arch/mips/kvm/loongson_ipi.c2
-rw-r--r--arch/mips/kvm/mips.c2
-rw-r--r--arch/mips/lantiq/xway/sysctrl.c20
-rw-r--r--arch/mips/loongson64/Makefile2
-rw-r--r--arch/mips/loongson64/dma.c1
-rw-r--r--arch/mips/loongson64/env.c8
-rw-r--r--arch/mips/loongson64/pm.c88
-rw-r--r--arch/mips/loongson64/reset.c38
-rw-r--r--arch/mips/loongson64/sleeper.S21
-rw-r--r--arch/mips/loongson64/smp.c23
-rw-r--r--arch/mips/mobileye/Kconfig26
-rw-r--r--arch/mips/mobileye/Platform1
-rw-r--r--[-rwxr-xr-x]arch/mips/pci/pcie-octeon.c0
-rw-r--r--arch/mips/sgi-ip22/ip22-gio.c4
-rw-r--r--arch/mips/sgi-ip22/ip22-int.c2
-rw-r--r--arch/mips/sgi-ip22/ip22-setup.c2
-rw-r--r--arch/mips/sgi-ip30/ip30-console.c1
72 files changed, 1702 insertions, 390 deletions
diff --git a/arch/mips/Kbuild.platforms b/arch/mips/Kbuild.platforms
index 5c145b67d3bf..bca37ddf974b 100644
--- a/arch/mips/Kbuild.platforms
+++ b/arch/mips/Kbuild.platforms
@@ -8,6 +8,7 @@ platform-$(CONFIG_BCM47XX) += bcm47xx/
platform-$(CONFIG_BCM63XX) += bcm63xx/
platform-$(CONFIG_BMIPS_GENERIC) += bmips/
platform-$(CONFIG_CAVIUM_OCTEON_SOC) += cavium-octeon/
+platform-$(CONFIG_EYEQ) += mobileye/
platform-$(CONFIG_MIPS_COBALT) += cobalt/
platform-$(CONFIG_MACH_DECSTATION) += dec/
platform-$(CONFIG_MIPS_GENERIC) += generic/
@@ -17,7 +18,6 @@ platform-$(CONFIG_MACH_LOONGSON2EF) += loongson2ef/
platform-$(CONFIG_MACH_LOONGSON32) += loongson32/
platform-$(CONFIG_MACH_LOONGSON64) += loongson64/
platform-$(CONFIG_MIPS_MALTA) += mti-malta/
-platform-$(CONFIG_MACH_EYEQ5) += mobileye/
platform-$(CONFIG_MACH_NINTENDO64) += n64/
platform-$(CONFIG_PIC32MZDA) += pic32/
platform-$(CONFIG_RALINK) += ralink/
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index f1aa1bf11166..28af3d9e6bc0 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -30,7 +30,7 @@ config MIPS
select BUILDTIME_TABLE_SORT
select CLONE_BACKWARDS
select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
- select CPU_PM if CPU_IDLE
+ select CPU_PM if CPU_IDLE || SUSPEND
select GENERIC_ATOMIC64 if !64BIT
select GENERIC_CMOS_UPDATE
select GENERIC_CPU_AUTOPROBE
@@ -575,8 +575,8 @@ config MACH_PIC32
Microchip PIC32 is a family of general-purpose 32 bit MIPS core
microcontrollers.
-config MACH_EYEQ5
- bool "Mobileye EyeQ5 SoC"
+config EYEQ
+ bool "Mobileye EyeQ SoC"
select MACH_GENERIC_CORE
select ARM_AMBA
select PHYSICAL_START_BOOL
@@ -615,7 +615,7 @@ config MACH_EYEQ5
select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
select USE_OF
help
- Select this to build a kernel supporting EyeQ5 SoC from Mobileye.
+ Select this to build a kernel supporting EyeQ SoC from Mobileye.
bool
@@ -667,6 +667,7 @@ config MACH_REALTEK_RTL
select BOOT_RAW
select PINCTRL
select USE_OF
+ select REALTEK_OTTO_TIMER
config SGI_IP22
bool "SGI IP22 (Indy/Indigo2)"
@@ -1021,6 +1022,7 @@ source "arch/mips/generic/Kconfig"
source "arch/mips/ingenic/Kconfig"
source "arch/mips/jazz/Kconfig"
source "arch/mips/lantiq/Kconfig"
+source "arch/mips/mobileye/Kconfig"
source "arch/mips/pic32/Kconfig"
source "arch/mips/ralink/Kconfig"
source "arch/mips/sgi-ip27/Kconfig"
@@ -1083,6 +1085,7 @@ config CSRC_IOASIC
config CSRC_R4K
select CLOCKSOURCE_WATCHDOG if CPU_FREQ
+ select HAVE_UNSTABLE_SCHED_CLOCK if SMP && 64BIT
bool
config CSRC_SB1250
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 80aecba24892..5785a3d5ccfb 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -170,7 +170,7 @@ cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=mips4) \
-Wa,--trap
cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=mips4) \
-Wa,--trap
-cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=mips64r1) \
+cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=mips64) \
-Wa,--trap
cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index d4ab34b3b404..da74cae6b43a 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -409,8 +409,8 @@ static void __init alchemy_setup_macs(int ctype)
if (alchemy_get_macs(ctype) < 1)
return;
- macres = kmemdup(au1xxx_eth0_resources[ctype],
- sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL);
+ macres = kmemdup_array(au1xxx_eth0_resources[ctype], MAC_RES_COUNT,
+ sizeof(*macres), GFP_KERNEL);
if (!macres) {
printk(KERN_INFO "Alchemy: no memory for MAC0 resources\n");
return;
@@ -430,8 +430,8 @@ static void __init alchemy_setup_macs(int ctype)
if (alchemy_get_macs(ctype) < 2)
return;
- macres = kmemdup(au1xxx_eth1_resources[ctype],
- sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL);
+ macres = kmemdup_array(au1xxx_eth1_resources[ctype], MAC_RES_COUNT,
+ sizeof(*macres), GFP_KERNEL);
if (!macres) {
printk(KERN_INFO "Alchemy: no memory for MAC1 resources\n");
return;
diff --git a/arch/mips/alchemy/devboards/db1000.c b/arch/mips/alchemy/devboards/db1000.c
index 7b9f91db227f..6984cd5169b5 100644
--- a/arch/mips/alchemy/devboards/db1000.c
+++ b/arch/mips/alchemy/devboards/db1000.c
@@ -10,15 +10,16 @@
#include <linux/dma-mapping.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/leds.h>
#include <linux/mmc/host.h>
#include <linux/platform_device.h>
+#include <linux/property.h>
#include <linux/pm.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
-#include <linux/spi/ads7846.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-au1x00/gpio-au1000.h>
#include <asm/mach-au1x00/au1000_dma.h>
@@ -374,22 +375,20 @@ static struct platform_device db1100_mmc1_dev = {
/******************************************************************************/
-static struct ads7846_platform_data db1100_touch_pd = {
- .model = 7846,
- .vref_mv = 3300,
+static const struct software_node db1100_alchemy2_gpiochip = {
+ .name = "alchemy-gpio2",
};
-static struct spi_gpio_platform_data db1100_spictl_pd = {
- .num_chipselect = 1,
+static const struct property_entry db1100_ads7846_properties[] = {
+ PROPERTY_ENTRY_U16("ti,vref_min", 3300),
+ PROPERTY_ENTRY_GPIO("pendown-gpios",
+ &db1100_alchemy2_gpiochip, 21, GPIO_ACTIVE_LOW),
+ { }
};
-static struct gpiod_lookup_table db1100_touch_gpio_table = {
- .dev_id = "spi0.0",
- .table = {
- GPIO_LOOKUP("alchemy-gpio2", 21,
- "pendown", GPIO_ACTIVE_LOW),
- { }
- },
+static const struct software_node db1100_ads7846_swnode = {
+ .name = "ads7846",
+ .properties = db1100_ads7846_properties,
};
static struct spi_board_info db1100_spi_info[] __initdata = {
@@ -400,37 +399,37 @@ static struct spi_board_info db1100_spi_info[] __initdata = {
.chip_select = 0,
.mode = 0,
.irq = AU1100_GPIO21_INT,
- .platform_data = &db1100_touch_pd,
+ .swnode = &db1100_ads7846_swnode,
},
};
-static struct platform_device db1100_spi_dev = {
- .name = "spi_gpio",
- .id = 0,
- .dev = {
- .platform_data = &db1100_spictl_pd,
- .dma_mask = &au1xxx_all_dmamask,
- .coherent_dma_mask = DMA_BIT_MASK(32),
- },
+static const struct spi_gpio_platform_data db1100_spictl_pd __initconst = {
+ .num_chipselect = 1,
};
/*
* Alchemy GPIO 2 has its base at 200 so the GPIO lines
* 207 thru 210 are GPIOs at offset 7 thru 10 at this chip.
*/
-static struct gpiod_lookup_table db1100_spi_gpiod_table = {
- .dev_id = "spi_gpio",
- .table = {
- GPIO_LOOKUP("alchemy-gpio2", 9,
- "sck", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("alchemy-gpio2", 8,
- "mosi", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("alchemy-gpio2", 7,
- "miso", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("alchemy-gpio2", 10,
- "cs", GPIO_ACTIVE_HIGH),
- { },
- },
+static const struct property_entry db1100_spi_dev_properties[] __initconst = {
+ PROPERTY_ENTRY_GPIO("miso-gpios",
+ &db1100_alchemy2_gpiochip, 7, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("mosi-gpios",
+ &db1100_alchemy2_gpiochip, 8, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("sck-gpios",
+ &db1100_alchemy2_gpiochip, 9, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("cs-gpios",
+ &db1100_alchemy2_gpiochip, 10, GPIO_ACTIVE_HIGH),
+ { }
+};
+
+static const struct platform_device_info db1100_spi_dev_info __initconst = {
+ .name = "spi_gpio",
+ .id = 0,
+ .data = &db1100_spictl_pd,
+ .size_data = sizeof(db1100_spictl_pd),
+ .dma_mask = DMA_BIT_MASK(32),
+ .properties = db1100_spi_dev_properties,
};
static struct platform_device *db1x00_devs[] = {
@@ -452,8 +451,10 @@ int __init db1000_dev_setup(void)
{
int board = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
int c0, c1, d0, d1, s0, s1, flashsize = 32, twosocks = 1;
+ int err;
unsigned long pfc;
struct clk *c, *p;
+ struct platform_device *spi_dev;
if (board == BCSR_WHOAMI_DB1500) {
c0 = AU1500_GPIO2_INT;
@@ -480,7 +481,7 @@ int __init db1000_dev_setup(void)
pfc |= (1 << 0); /* SSI0 pins as GPIOs */
alchemy_wrsys(pfc, AU1000_SYS_PINFUNC);
- gpiod_add_lookup_table(&db1100_touch_gpio_table);
+ software_node_register(&db1100_alchemy2_gpiochip);
spi_register_board_info(db1100_spi_info,
ARRAY_SIZE(db1100_spi_info));
@@ -497,8 +498,11 @@ int __init db1000_dev_setup(void)
clk_put(p);
platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
- gpiod_add_lookup_table(&db1100_spi_gpiod_table);
- platform_device_register(&db1100_spi_dev);
+
+ spi_dev = platform_device_register_full(&db1100_spi_dev_info);
+ err = PTR_ERR_OR_ZERO(spi_dev);
+ if (err)
+ pr_err("failed to register SPI controller: %d\n", err);
} else if (board == BCSR_WHOAMI_DB1000) {
c0 = AU1000_GPIO2_INT;
c1 = AU1000_GPIO5_INT;
diff --git a/arch/mips/bcm47xx/prom.c b/arch/mips/bcm47xx/prom.c
index 58fb7c2dc3b8..66e3ee2b04e6 100644
--- a/arch/mips/bcm47xx/prom.c
+++ b/arch/mips/bcm47xx/prom.c
@@ -32,6 +32,7 @@
#include <linux/ssb/ssb_driver_chipcommon.h>
#include <linux/ssb/ssb_regs.h>
#include <linux/smp.h>
+#include <asm/bmips.h>
#include <asm/bootinfo.h>
#include <bcm47xx.h>
#include <bcm47xx_board.h>
@@ -110,6 +111,8 @@ static __init void prom_init_mem(void)
void __init prom_init(void)
{
+ /* Cache CBR addr before CPU/DMA setup */
+ bmips_cbr_addr = BMIPS_GET_CBR();
prom_init_mem();
setup_8250_early_printk_port(CKSEG1ADDR(BCM47XX_SERIAL_ADDR), 0, 0);
}
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index 94bf839576c1..247be207f293 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -37,6 +37,7 @@
#include <linux/ssb/ssb.h>
#include <linux/ssb/ssb_embedded.h>
#include <linux/bcma/bcma_soc.h>
+#include <asm/bmips.h>
#include <asm/bootinfo.h>
#include <asm/idle.h>
#include <asm/prom.h>
@@ -45,6 +46,13 @@
#include <bcm47xx.h>
#include <bcm47xx_board.h>
+/*
+ * CBR addr doesn't change and we can cache it.
+ * For broken SoC/Bootloader CBR addr might also be provided via DT
+ * with "brcm,bmips-cbr-reg" in the "cpus" node.
+ */
+void __iomem *bmips_cbr_addr __read_mostly;
+
union bcm47xx_bus bcm47xx_bus;
EXPORT_SYMBOL(bcm47xx_bus);
diff --git a/arch/mips/bcm63xx/prom.c b/arch/mips/bcm63xx/prom.c
index c3a2ea62c5c3..f21dd168171a 100644
--- a/arch/mips/bcm63xx/prom.c
+++ b/arch/mips/bcm63xx/prom.c
@@ -22,6 +22,9 @@ void __init prom_init(void)
{
u32 reg, mask;
+ /* Cache CBR addr before CPU/DMA setup */
+ bmips_cbr_addr = BMIPS_GET_CBR();
+
bcm63xx_cpu_init();
/* stop any running watchdog */
diff --git a/arch/mips/bcm63xx/setup.c b/arch/mips/bcm63xx/setup.c
index c13ddb544a23..81529084bc75 100644
--- a/arch/mips/bcm63xx/setup.c
+++ b/arch/mips/bcm63xx/setup.c
@@ -12,6 +12,7 @@
#include <linux/memblock.h>
#include <linux/ioport.h>
#include <linux/pm.h>
+#include <asm/bmips.h>
#include <asm/bootinfo.h>
#include <asm/time.h>
#include <asm/reboot.h>
@@ -22,6 +23,13 @@
#include <bcm63xx_io.h>
#include <bcm63xx_gpio.h>
+/*
+ * CBR addr doesn't change and we can cache it.
+ * For broken SoC/Bootloader CBR addr might also be provided via DT
+ * with "brcm,bmips-cbr-reg" in the "cpus" node.
+ */
+void __iomem *bmips_cbr_addr __read_mostly;
+
void bcm63xx_machine_halt(void)
{
pr_info("System halted\n");
diff --git a/arch/mips/bmips/dma.c b/arch/mips/bmips/dma.c
index 3779e7855bd7..2bc9c0d4402f 100644
--- a/arch/mips/bmips/dma.c
+++ b/arch/mips/bmips/dma.c
@@ -9,7 +9,7 @@ bool bmips_rac_flush_disable;
void arch_sync_dma_for_cpu_all(void)
{
- void __iomem *cbr = BMIPS_GET_CBR();
+ void __iomem *cbr = bmips_cbr_addr;
u32 cfg;
if (boot_cpu_type() != CPU_BMIPS3300 &&
diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c
index 66a8ba19c287..2572fd49a6e9 100644
--- a/arch/mips/bmips/setup.c
+++ b/arch/mips/bmips/setup.c
@@ -34,6 +34,13 @@
#define REG_BCM6328_OTP ((void __iomem *)CKSEG1ADDR(0x1000062c))
#define BCM6328_TP1_DISABLED BIT(9)
+/*
+ * CBR addr doesn't change and we can cache it.
+ * For broken SoC/Bootloader CBR addr might also be provided via DT
+ * with "brcm,bmips-cbr-reg" in the "cpus" node.
+ */
+void __iomem *bmips_cbr_addr __read_mostly;
+
extern bool bmips_rac_flush_disable;
static const unsigned long kbase = VMLINUX_LOAD_ADDRESS & 0xfff00000;
@@ -111,7 +118,7 @@ static void bcm6358_quirks(void)
* because the bootloader is not initializing it properly.
*/
bmips_rac_flush_disable = !!(read_c0_brcm_cmt_local() & (1 << 31)) ||
- !!BMIPS_GET_CBR();
+ !!bmips_cbr_addr;
}
static void bcm6368_quirks(void)
@@ -144,6 +151,8 @@ static void __init bmips_init_cfe(void)
void __init prom_init(void)
{
+ /* Cache CBR addr before CPU/DMA setup */
+ bmips_cbr_addr = BMIPS_GET_CBR();
bmips_init_cfe();
bmips_cpu_setup();
register_bmips_smp_ops();
@@ -203,13 +212,35 @@ void __init plat_mem_setup(void)
void __init device_tree_init(void)
{
struct device_node *np;
+ u32 addr;
unflatten_and_copy_device_tree();
/* Disable SMP boot unless both CPUs are listed in DT and !disabled */
np = of_find_node_by_name(NULL, "cpus");
- if (np && of_get_available_child_count(np) <= 1)
+ if (!np)
+ return;
+
+ if (of_get_available_child_count(np) <= 1)
bmips_smp_enabled = 0;
+
+ /* Check if DT provide a CBR address */
+ if (of_property_read_u32(np, "brcm,bmips-cbr-reg", &addr))
+ goto exit;
+
+ /* Make sure CBR address is outside DRAM window */
+ if (add