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-rw-r--r--MAINTAINERS5
-rw-r--r--arch/arm/include/debug/brcmstb.S30
-rw-r--r--arch/arm/mach-bcm/Kconfig1
-rw-r--r--arch/arm/mach-exynos/Kconfig1
-rw-r--r--arch/arm/mach-imx/hardware.h4
-rw-r--r--arch/arm/mach-imx/mach-imx6ul.c25
-rw-r--r--arch/arm/mach-omap2/clockdomain.c4
-rw-r--r--arch/arm/mach-s3c/irq-s3c24xx-fiq.S9
-rw-r--r--arch/arm/mach-s3c/irq-s3c24xx.c8
-rw-r--r--arch/arm/mach-tegra/sleep-tegra20.S38
-rw-r--r--arch/arm/mach-tegra/sleep-tegra30.S94
-rw-r--r--arch/arm64/Kconfig.platforms1
-rw-r--r--drivers/soc/renesas/rcar-sysc.c37
-rw-r--r--drivers/soc/samsung/Kconfig12
-rw-r--r--drivers/soc/samsung/Makefile3
-rw-r--r--drivers/soc/samsung/exynos-asv.c57
-rw-r--r--drivers/soc/samsung/exynos-asv.h2
-rw-r--r--drivers/soc/samsung/exynos-chipid.c71
-rw-r--r--drivers/soc/samsung/pm_domains.c97
19 files changed, 286 insertions, 213 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 2f9b0678b31d..e6b425a5cb33 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1511,6 +1511,7 @@ ARM/ACTIONS SEMI ARCHITECTURE
M: Andreas Färber <afaerber@suse.de>
M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: linux-actions@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: Documentation/devicetree/bindings/arm/actions.yaml
F: Documentation/devicetree/bindings/clock/actions,owl-cmu.txt
@@ -2382,6 +2383,8 @@ F: drivers/*/*s5pv210*
F: drivers/memory/samsung/
F: drivers/soc/samsung/
F: drivers/tty/serial/samsung*
+F: include/linux/platform_data/*s3c*
+F: include/linux/serial_s3c.h
F: include/linux/soc/samsung/
N: exynos
N: s3c2410
@@ -12843,7 +12846,7 @@ S: Orphan
F: drivers/video/fbdev/omap/
OMAP GENERAL PURPOSE MEMORY CONTROLLER SUPPORT
-M: Roger Quadros <rogerq@ti.com>
+M: Roger Quadros <rogerq@kernel.org>
M: Tony Lindgren <tony@atomide.com>
L: linux-omap@vger.kernel.org
S: Maintained
diff --git a/arch/arm/include/debug/brcmstb.S b/arch/arm/include/debug/brcmstb.S
index 0ff32ffc610c..f684e3a815f6 100644
--- a/arch/arm/include/debug/brcmstb.S
+++ b/arch/arm/include/debug/brcmstb.S
@@ -25,6 +25,7 @@
#define SUN_TOP_CTRL_BASE_V7 REG_PHYS_ADDR_V7(0x404000)
#define UARTA_3390 REG_PHYS_ADDR(0x40a900)
+#define UARTA_72116 UARTA_7255
#define UARTA_7250 REG_PHYS_ADDR(0x40b400)
#define UARTA_7255 REG_PHYS_ADDR(0x40c000)
#define UARTA_7260 UARTA_7255
@@ -85,20 +86,21 @@ ARM_BE8( rev \rv, \rv )
/* Chip specific detection starts here */
20: checkuart(\rp, \rv, 0x33900000, 3390)
-21: checkuart(\rp, \rv, 0x72160000, 7216)
-22: checkuart(\rp, \rv, 0x07216400, 72164)
-23: checkuart(\rp, \rv, 0x07216500, 72165)
-24: checkuart(\rp, \rv, 0x72500000, 7250)
-25: checkuart(\rp, \rv, 0x72550000, 7255)
-26: checkuart(\rp, \rv, 0x72600000, 7260)
-27: checkuart(\rp, \rv, 0x72680000, 7268)
-28: checkuart(\rp, \rv, 0x72710000, 7271)
-29: checkuart(\rp, \rv, 0x72780000, 7278)
-30: checkuart(\rp, \rv, 0x73640000, 7364)
-31: checkuart(\rp, \rv, 0x73660000, 7366)
-32: checkuart(\rp, \rv, 0x07437100, 74371)
-33: checkuart(\rp, \rv, 0x74390000, 7439)
-34: checkuart(\rp, \rv, 0x74450000, 7445)
+21: checkuart(\rp, \rv, 0x07211600, 72116)
+22: checkuart(\rp, \rv, 0x72160000, 7216)
+23: checkuart(\rp, \rv, 0x07216400, 72164)
+24: checkuart(\rp, \rv, 0x07216500, 72165)
+25: checkuart(\rp, \rv, 0x72500000, 7250)
+26: checkuart(\rp, \rv, 0x72550000, 7255)
+27: checkuart(\rp, \rv, 0x72600000, 7260)
+28: checkuart(\rp, \rv, 0x72680000, 7268)
+29: checkuart(\rp, \rv, 0x72710000, 7271)
+30: checkuart(\rp, \rv, 0x72780000, 7278)
+31: checkuart(\rp, \rv, 0x73640000, 7364)
+32: checkuart(\rp, \rv, 0x73660000, 7366)
+33: checkuart(\rp, \rv, 0x07437100, 74371)
+34: checkuart(\rp, \rv, 0x74390000, 7439)
+35: checkuart(\rp, \rv, 0x74450000, 7445)
/* No valid UART found */
90: mov \rp, #0
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 9b594ae98153..2890e61b2b46 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -161,6 +161,7 @@ config ARCH_BCM2835
select ARM_TIMER_SP804
select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7
select BCM2835_TIMER
+ select BRCMSTB_L2_IRQ
select PINCTRL
select PINCTRL_BCM2835
select MFD_CORE
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 56d272967fc0..5a48abac6af4 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -13,7 +13,6 @@ menuconfig ARCH_EXYNOS
select ARM_GIC
select EXYNOS_IRQ_COMBINER
select COMMON_CLK_SAMSUNG
- select EXYNOS_ASV
select EXYNOS_CHIPID
select EXYNOS_THERMAL
select EXYNOS_PMU
diff --git a/arch/arm/mach-imx/hardware.h b/arch/arm/mach-imx/hardware.h
index 7acf7ce467ed..0760fff39a0b 100644
--- a/arch/arm/mach-imx/hardware.h
+++ b/arch/arm/mach-imx/hardware.h
@@ -106,8 +106,4 @@
.type = _type, \
}
-/* There's an off-by-one between the gpio bank number and the gpiochip */
-/* range e.g. GPIO_1_5 is gpio 5 under linux */
-#define IMX_GPIO_NR(bank, nr) (((bank) - 1) * 32 + (nr))
-
#endif /* __ASM_ARCH_MXC_HARDWARE_H__ */
diff --git a/arch/arm/mach-imx/mach-imx6ul.c b/arch/arm/mach-imx/mach-imx6ul.c
index e018e716735f..35e81201cb5d 100644
--- a/arch/arm/mach-imx/mach-imx6ul.c
+++ b/arch/arm/mach-imx/mach-imx6ul.c
@@ -14,6 +14,7 @@
#include "common.h"
#include "cpuidle.h"
+#include "hardware.h"
static void __init imx6ul_enet_clk_init(void)
{
@@ -27,34 +28,16 @@ static void __init imx6ul_enet_clk_init(void)
pr_err("failed to find fsl,imx6ul-iomux-gpr regmap\n");
}
-static int ksz8081_phy_fixup(struct phy_device *dev)
-{
- if (dev && dev->interface == PHY_INTERFACE_MODE_MII) {
- phy_write(dev, 0x1f, 0x8110);
- phy_write(dev, 0x16, 0x201);
- } else if (dev && dev->interface == PHY_INTERFACE_MODE_RMII) {
- phy_write(dev, 0x1f, 0x8190);
- phy_write(dev, 0x16, 0x202);
- }
-
- return 0;
-}
-
-static void __init imx6ul_enet_phy_init(void)
-{
- if (IS_BUILTIN(CONFIG_PHYLIB))
- phy_register_fixup_for_uid(PHY_ID_KSZ8081, MICREL_PHY_ID_MASK,
- ksz8081_phy_fixup);
-}
-
static inline void imx6ul_enet_init(void)
{
imx6ul_enet_clk_init();
- imx6ul_enet_phy_init();
}
static void __init imx6ul_init_machine(void)
{
+ imx_print_silicon_rev(cpu_is_imx6ull() ? "i.MX6ULL" : "i.MX6UL",
+ imx_get_soc_revision());
+
of_platform_default_populate(NULL, NULL, NULL);
imx6ul_enet_init();
imx_anatop_init();
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index dedd47e30b98..1feb0098705e 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -1299,7 +1299,7 @@ int clkdm_hwmod_disable(struct clockdomain *clkdm, struct omap_hwmod *oh)
* Due to a suspend or hibernation operation, the state of the registers
* controlling this clkdm will be lost, save their context.
*/
-static int _clkdm_save_context(struct clockdomain *clkdm, void *ununsed)
+static int _clkdm_save_context(struct clockdomain *clkdm, void *unused)
{
if (!arch_clkdm || !arch_clkdm->clkdm_save_context)
return -EINVAL;
@@ -1312,7 +1312,7 @@ static int _clkdm_save_context(struct clockdomain *clkdm, void *ununsed)
*
* Restore the register values for this clockdomain.
*/
-static int _clkdm_restore_context(struct clockdomain *clkdm, void *ununsed)
+static int _clkdm_restore_context(struct clockdomain *clkdm, void *unused)
{
if (!arch_clkdm || !arch_clkdm->clkdm_restore_context)
return -EINVAL;
diff --git a/arch/arm/mach-s3c/irq-s3c24xx-fiq.S b/arch/arm/mach-s3c/irq-s3c24xx-fiq.S
index b54cbd012241..5d238d9a798e 100644
--- a/arch/arm/mach-s3c/irq-s3c24xx-fiq.S
+++ b/arch/arm/mach-s3c/irq-s3c24xx-fiq.S
@@ -35,7 +35,6 @@
@ and an offset to the irq acknowledgment word
ENTRY(s3c24xx_spi_fiq_rx)
-s3c24xx_spi_fix_rx:
.word fiq_rx_end - fiq_rx_start
.word fiq_rx_irq_ack - fiq_rx_start
fiq_rx_start:
@@ -49,7 +48,7 @@ fiq_rx_start:
strb fiq_rtmp, [ fiq_rspi, # S3C2410_SPTDAT ]
subs fiq_rcount, fiq_rcount, #1
- subnes pc, lr, #4 @@ return, still have work to do
+ subsne pc, lr, #4 @@ return, still have work to do
@@ set IRQ controller so that next op will trigger IRQ
mov fiq_rtmp, #0
@@ -61,7 +60,6 @@ fiq_rx_irq_ack:
fiq_rx_end:
ENTRY(s3c24xx_spi_fiq_txrx)
-s3c24xx_spi_fiq_txrx:
.word fiq_txrx_end - fiq_txrx_start
.word fiq_txrx_irq_ack - fiq_txrx_start
fiq_txrx_start:
@@ -76,7 +74,7 @@ fiq_txrx_start:
strb fiq_rtmp, [ fiq_rspi, # S3C2410_SPTDAT ]
subs fiq_rcount, fiq_rcount, #1
- subnes pc, lr, #4 @@ return, still have work to do
+ subsne pc, lr, #4 @@ return, still have work to do
mov fiq_rtmp, #0
str fiq_rtmp, [ fiq_rirq, # S3C2410_INTMOD - S3C24XX_VA_IRQ ]
@@ -88,7 +86,6 @@ fiq_txrx_irq_ack:
fiq_txrx_end:
ENTRY(s3c24xx_spi_fiq_tx)
-s3c24xx_spi_fix_tx:
.word fiq_tx_end - fiq_tx_start
.word fiq_tx_irq_ack - fiq_tx_start
fiq_tx_start:
@@ -101,7 +98,7 @@ fiq_tx_start:
strb fiq_rtmp, [ fiq_rspi, # S3C2410_SPTDAT ]
subs fiq_rcount, fiq_rcount, #1
- subnes pc, lr, #4 @@ return, still have work to do
+ subsne pc, lr, #4 @@ return, still have work to do
mov fiq_rtmp, #0
str fiq_rtmp, [ fiq_rirq, # S3C2410_INTMOD - S3C24XX_VA_IRQ ]
diff --git a/arch/arm/mach-s3c/irq-s3c24xx.c b/arch/arm/mach-s3c/irq-s3c24xx.c
index 79b5f19af7a5..0c631c14a817 100644
--- a/arch/arm/mach-s3c/irq-s3c24xx.c
+++ b/arch/arm/mach-s3c/irq-s3c24xx.c
@@ -21,6 +21,7 @@
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_address.h>
+#include <linux/spi/s3c24xx.h>
#include <asm/exception.h>
#include <asm/mach/irq.h>
@@ -32,6 +33,7 @@
#include "cpu.h"
#include "regs-irqtype.h"
#include "pm.h"
+#include "s3c24xx.h"
#define S3C_IRQTYPE_NONE 0
#define S3C_IRQTYPE_EINT 1
@@ -357,7 +359,7 @@ static inline int s3c24xx_handle_intc(struct s3c_irq_intc *intc,
return true;
}
-asmlinkage void __exception_irq_entry s3c24xx_handle_irq(struct pt_regs *regs)
+static asmlinkage void __exception_irq_entry s3c24xx_handle_irq(struct pt_regs *regs)
{
do {
if (likely(s3c_intc[0]))
@@ -1305,7 +1307,7 @@ static struct s3c24xx_irq_of_ctrl s3c2410_ctrl[] = {
}
};
-int __init s3c2410_init_intc_of(struct device_node *np,
+static int __init s3c2410_init_intc_of(struct device_node *np,
struct device_node *interrupt_parent)
{
return s3c_init_intc_of(np, interrupt_parent,
@@ -1327,7 +1329,7 @@ static struct s3c24xx_irq_of_ctrl s3c2416_ctrl[] = {
}
};
-int __init s3c2416_init_intc_of(struct device_node *np,
+static int __init s3c2416_init_intc_of(struct device_node *np,
struct device_node *interrupt_parent)
{
return s3c_init_intc_of(np, interrupt_parent,
diff --git a/arch/arm/mach-tegra/sleep-tegra20.S b/arch/arm/mach-tegra/sleep-tegra20.S
index 0e00ba8cf646..a5a36cce142a 100644
--- a/arch/arm/mach-tegra/sleep-tegra20.S
+++ b/arch/arm/mach-tegra/sleep-tegra20.S
@@ -43,11 +43,34 @@
#define APB_MISC_XM2CFGCPADCTRL2 0x8e4
#define APB_MISC_XM2CFGDPADCTRL2 0x8e8
-.macro pll_enable, rd, r_car_base, pll_base
+#define PLLC_STORE_MASK (1 << 0)
+#define PLLM_STORE_MASK (1 << 1)
+#define PLLP_STORE_MASK (1 << 2)
+
+.macro test_pll_state, rd, test_mask
+ ldr \rd, tegra_pll_state
+ tst \rd, #\test_mask
+.endm
+
+.macro store_pll_state, rd, tmp, r_car_base, pll_base, pll_mask
+ ldr \rd, [\r_car_base, #\pll_base]
+ tst \rd, #(1 << 30)
+ ldr \rd, tegra_pll_state
+ biceq \rd, \rd, #\pll_mask
+ orrne \rd, \rd, #\pll_mask
+ adr \tmp, tegra_pll_state
+ str \rd, [\tmp]
+.endm
+
+.macro pll_enable, rd, r_car_base, pll_base, test_mask
+ test_pll_state \rd, \test_mask
+ beq 1f
+
ldr \rd, [\r_car_base, #\pll_base]
tst \rd, #(1 << 30)
orreq \rd, \rd, #(1 << 30)
streq \rd, [\r_car_base, #\pll_base]
+1:
.endm
.macro emc_device_mask, rd, base
@@ -177,9 +200,9 @@ ENTRY(tegra20_lp1_reset)
str r1, [r0, #CLK_RESET_CCLK_DIVIDER]
str r1, [r0, #CLK_RESET_SCLK_DIVIDER]
- pll_enable r1, r0, CLK_RESET_PLLM_BASE
- pll_enable r1, r0, CLK_RESET_PLLP_BASE
- pll_enable r1, r0, CLK_RESET_PLLC_BASE
+ pll_enable r1, r0, CLK_RESET_PLLM_BASE, PLLM_STORE_MASK
+ pll_enable r1, r0, CLK_RESET_PLLP_BASE, PLLP_STORE_MASK
+ pll_enable r1, r0, CLK_RESET_PLLC_BASE, PLLC_STORE_MASK
adr r2, tegra20_sdram_pad_address
adr r4, tegra20_sdram_pad_save
@@ -270,6 +293,10 @@ tegra20_switch_cpu_to_clk32k:
add r1, r1, #2
wait_until r1, r7, r9
+ store_pll_state r0, r1, r5, CLK_RESET_PLLC_BASE, PLLC_STORE_MASK
+ store_pll_state r0, r1, r5, CLK_RESET_PLLM_BASE, PLLM_STORE_MASK
+ store_pll_state r0, r1, r5, CLK_RESET_PLLP_BASE, PLLP_STORE_MASK
+
/* disable PLLM, PLLP and PLLC */
ldr r0, [r5, #CLK_RESET_PLLM_BASE]
bic r0, r0, #(1 << 30)
@@ -396,6 +423,9 @@ tegra20_sdram_pad_save:
.long 0
.endr
+tegra_pll_state:
+ .word 0x0
+
.ltorg
/* dummy symbol for end of IRAM */
.align L1_CACHE_SHIFT
diff --git a/arch/arm/mach-tegra/sleep-tegra30.S b/arch/arm/mach-tegra/sleep-tegra30.S
index 2667bcdb5dc6..0cc40b6b2ba3 100644
--- a/arch/arm/mach-tegra/sleep-tegra30.S
+++ b/arch/arm/mach-tegra/sleep-tegra30.S
@@ -71,6 +71,13 @@
#define TEGRA30_POWER_HOTPLUG_SHUTDOWN (1 << 27) /* Hotplug shutdown */
+#define PLLA_STORE_MASK (1 << 0)
+#define PLLC_STORE_MASK (1 << 1)
+#define PLLM_STORE_MASK (1 << 2)
+#define PLLP_STORE_MASK (1 << 3)
+#define PLLX_STORE_MASK (1 << 4)
+#define PLLM_PMC_STORE_MASK (1 << 5)
+
.macro emc_device_mask, rd, base
ldr \rd, [\base, #EMC_ADR_CFG]
tst \rd, #0x1
@@ -87,7 +94,43 @@
bne 1001b
.endm
-.macro pll_enable, rd, r_car_base, pll_base, pll_misc
+.macro test_pll_state, rd, test_mask
+ ldr \rd, tegra_pll_state
+ tst \rd, #\test_mask
+.endm
+
+.macro store_pll_state, rd, tmp, r_car_base, pll_base, pll_mask
+ ldr \rd, [\r_car_base, #\pll_base]
+ tst \rd, #(1 << 30)
+ ldr \rd, tegra_pll_state
+ biceq \rd, \rd, #\pll_mask
+ orrne \rd, \rd, #\pll_mask
+ adr \tmp, tegra_pll_state
+ str \rd, [\tmp]
+.endm
+
+.macro store_pllm_pmc_state, rd, tmp, pmc_base
+ ldr \rd, [\pmc_base, #PMC_PLLP_WB0_OVERRIDE]
+ tst \rd, #(1 << 12)
+ ldr \rd, tegra_pll_state
+ biceq \rd, \rd, #PLLM_PMC_STORE_MASK
+ orrne \rd, \rd, #PLLM_PMC_STORE_MASK
+ adr \tmp, tegra_pll_state
+ str \rd, [\tmp]
+.endm
+
+.macro pllm_pmc_enable, rd, pmc_base
+ test_pll_state \rd, PLLM_PMC_STORE_MASK
+
+ ldrne \rd, [\pmc_base, #PMC_PLLP_WB0_OVERRIDE]
+ orrne \rd, \rd, #(1 << 12)
+ strne \rd, [\pmc_base, #PMC_PLLP_WB0_OVERRIDE]
+.endm
+
+.macro pll_enable, rd, r_car_base, pll_base, pll_misc, test_mask
+ test_pll_state \rd, \test_mask
+ beq 1f
+
ldr \rd, [\r_car_base, #\pll_base]
tst \rd, #(1 << 30)
orreq \rd, \rd, #(1 << 30)
@@ -102,13 +145,17 @@
orr \rd, \rd, #(1 << 18)
str \rd, [\r_car_base, #\pll_misc]
.endif
+1:
.endm
-.macro pll_locked, rd, r_car_base, pll_base
+.macro pll_locked, rd, r_car_base, pll_base, test_mask
+ test_pll_state \rd, \test_mask
+ beq 2f
1:
ldr \rd, [\r_car_base, #\pll_base]
tst \rd, #(1 << 27)
beq 1b
+2:
.endm
.macro pll_iddq_exit, rd, car, iddq, iddq_bit
@@ -342,34 +389,30 @@ ENTRY(tegra30_lp1_reset)
/* enable PLLM via PMC */
mov32 r2, TEGRA_PMC_BASE
- ldr r1, [r2, #PMC_PLLP_WB0_OVERRIDE]
- orr r1, r1, #(1 << 12)
- str r1, [r2, #PMC_PLLP_WB0_OVERRIDE]
+ pllm_pmc_enable r1, r2
- pll_enable r1, r0, CLK_RESET_PLLM_BASE, 0
- pll_enable r1, r0, CLK_RESET_PLLC_BASE, 0
- pll_enable r1, r0, CLK_RESET_PLLX_BASE, 0
+ pll_enable r1, r0, CLK_RESET_PLLM_BASE, 0, PLLM_STORE_MASK
+ pll_enable r1, r0, CLK_RESET_PLLC_BASE, 0, PLLC_STORE_MASK
+ pll_enable r1, r0, CLK_RESET_PLLX_BASE, 0, PLLX_STORE_MASK
b _pll_m_c_x_done
_no_pll_iddq_exit:
/* enable PLLM via PMC */
mov32 r2, TEGRA_PMC_BASE
- ldr r1, [r2, #PMC_PLLP_WB0_OVERRIDE]
- orr r1, r1, #(1 << 12)
- str r1, [r2, #PMC_PLLP_WB0_OVERRIDE]
+ pllm_pmc_enable r1, r2
- pll_enable r1, r0, CLK_RESET_PLLM_BASE, CLK_RESET_PLLM_MISC
- pll_enable r1, r0, CLK_RESET_PLLC_BASE, CLK_RESET_PLLC_MISC
+ pll_enable r1, r0, CLK_RESET_PLLM_BASE, CLK_RESET_PLLM_MISC, PLLM_STORE_MASK
+ pll_enable r1, r0, CLK_RESET_PLLC_BASE, CLK_RESET_PLLC_MISC, PLLC_STORE_MASK
_pll_m_c_x_done:
- pll_enable r1, r0, CLK_RESET_PLLP_BASE, CLK_RESET_PLLP_MISC
- pll_enable r1, r0, CLK_RESET_PLLA_BASE, CLK_RESET_PLLA_MISC
+ pll_enable r1, r0, CLK_RESET_PLLP_BASE, CLK_RESET_PLLP_MISC, PLLP_STORE_MASK
+ pll_enable r1, r0, CLK_RESET_PLLA_BASE, CLK_RESET_PLLA_MISC, PLLA_STORE_MASK
- pll_locked r1, r0, CLK_RESET_PLLM_BASE
- pll_locked r1, r0, CLK_RESET_PLLP_BASE
- pll_locked r1, r0, CLK_RESET_PLLA_BASE
- pll_locked r1, r0, CLK_RESET_PLLC_BASE
+ pll_locked r1, r0, CLK_RESET_PLLM_BASE, PLLM_STORE_MASK
+ pll_locked r1, r0, CLK_RESET_PLLP_BASE, PLLP_STORE_MASK
+ pll_locked r1, r0, CLK_RESET_PLLA_BASE, PLLA_STORE_MASK
+ pll_locked r1, r0, CLK_RESET_PLLC_BASE, PLLC_STORE_MASK
/*
* CPUFreq driver could select other PLL for CPU. PLLX will be
@@ -380,7 +423,7 @@ _pll_m_c_x_done:
cmp r1, #TEGRA30
beq 1f
- pll_locked r1, r0, CLK_RESET_PLLX_BASE
+ pll_locked r1, r0, CLK_RESET_PLLX_BASE, PLLX_STORE_MASK
ldr r1, [r0, #CLK_RESET_PLLP_BASE]
bic r1, r1, #(1<<31) @ disable PllP bypass
@@ -593,6 +636,9 @@ tegra_sdram_pad_save:
.long 0
.endr
+tegra_pll_state:
+ .word 0x0
+
/*
* tegra30_tear_down_core
*
@@ -641,6 +687,14 @@ tegra30_switch_cpu_to_clk32k:
add r1, r1, #2
wait_until r1, r7, r9
+ /* store enable-state of PLLs */
+ store_pll_state r0, r1, r5, CLK_RESET_PLLA_BASE, PLLA_STORE_MASK
+ store_pll_state r0, r1, r5, CLK_RESET_PLLC_BASE, PLLC_STORE_MASK
+ store_pll_state r0, r1, r5, CLK_RESET_PLLM_BASE, PLLM_STORE_MASK
+ store_pll_state r0, r1, r5, CLK_RESET_PLLP_BASE, PLLP_STORE_MASK
+ store_pll_state r0, r1, r5, CLK_RESET_PLLX_BASE, PLLX_STORE_MASK
+ store_pllm_pmc_state r0, r1, r4
+
/* disable PLLM via PMC in LP1 */
ldr r0, [r4, #PMC_PLLP_WB0_OVERRIDE]
bic r0, r0, #(1 << 12)
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index ec3c0cb27d1e..88fdf6fc7569 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -39,6 +39,7 @@ config ARCH_BCM2835
select ARM_AMBA
select ARM_GIC
select ARM_TIMER_SP804
+ select BRCMSTB_L2_IRQ
help
This enables support for the Broadcom BCM2837 and BCM2711 SoC.
These SoCs are used in the Raspberry Pi 3 and 4 devices.
diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c
index 9b235fc90027..53387a72ca00 100644
--- a/drivers/soc/renesas/rcar-sysc.c
+++ b/drivers/soc/renesas/rcar-sysc.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/io.h>
+#include <linux/iopoll.h>
#include <linux/soc/renesas/rcar-sysc.h>
#include "rcar-sysc.h"
@@ -44,13 +45,13 @@
#define PWRER_OFFS 0x14 /* Power Shutoff/Resume Error */
-#define SYSCSR_RETRIES 100
+#define SYSCSR_TIMEOUT 100
#define SYSCSR_DELAY_US 1
#define PWRER_RETRIES 100
#define PWRER_DELAY_US 1
-#define SYSCISR_RETRIES 1000
+#define SYSCISR_TIMEOUT 1000
#define SYSCISR_DELAY_US 1
#define RCAR_PD_ALWAYS_ON 32 /* Always-on power area */
@@ -68,7 +69,8 @@ static u32 rcar_sysc_extmask_offs, rcar_sysc_extmask_val;
static int rcar_sysc_pwr_on_off(const struct rcar_sysc_ch *sysc_ch, bool on)
{
unsigned int sr_bit, reg_offs;
- int k;
+ u32 val;
+ int ret;
if (on) {
sr_bit = SYSCSR_PONENB;
@@ -79,13 +81,10 @@ static int rcar_sysc_pwr_on_off(const struct rcar_sysc_ch *sysc_ch, bool on)
}
/* Wait until SYSC is ready to accept a power request */
- for (k = 0; k < SYSCSR_RETRIES; k++) {
- if (ioread32(rcar_sysc_base + SYSCSR) & BIT(sr_bit))
- break;
- udelay(SYSCSR_DELAY_US);
- }
-
- if (k == SYSCSR_RETRIES)
+ ret = readl_poll_timeout_atomic(rcar_sysc_base + SYSCSR, val,
+ val & BIT(sr_bit), SYSCSR_DELAY_US,
+ SYSCSR_TIMEOUT);
+ if (ret)
return -EAGAIN;
/* Submit power shutoff or power resume request */
@@ -99,10 +98,9 @@ static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
{
unsigned int isr_mask = BIT(sysc_ch->isr_bit);
unsigned int chan_mask = BIT(sysc_ch->chan_bit);
- unsigned int status;
+ unsigned int status, k;
unsigned long flags;
- int ret = 0;
- int k;
+ int ret;
spin_lock_irqsave(&rcar_sysc_lock, flags);
@@ -145,13 +143,10 @@ static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
}
/* Wait until the power shutoff or resume request has completed * */
- for (k = 0; k < SYSCISR_RETRIES; k++) {
- if (ioread32(rcar_sysc_base + SYSCISR) & isr_mask)
- break;
- udelay(SYSCISR_DELAY_US);
- }
-
- if (k == SYSCISR_RETRIES)
+ ret = readl_poll_timeout_atomic(rcar_sysc_base + SYSCISR, status,
+ status & isr_mask, SYSCISR_DELAY_US,
+ SYSCISR_TIMEOUT);
+ if (ret)
ret = -EIO;
iowrite32(isr_mask, rcar_sysc_base + SYSCISCR);
@@ -439,6 +434,8 @@ static int __init rcar_sysc_pd_init(void)
}
error = of_genpd_add_provider_onecell(np, &domains->onecell_data);
+ if (!error)
+ of_node_set_flag(np, OF_POPULATED);
out_put:
of_node_put(np);
diff --git a/drivers/soc/samsung/Kconfig b/drivers/soc/samsung/Kconfig
index fc7f48a92288..5745d7e5908e 100644
--- a/drivers/soc/samsung/Kconfig
+++ b/drivers/soc/samsung/Kconfig
@@ -7,21 +7,19 @@ menuconfig SOC_SAMSUNG
if SOC_SAMSUNG
-config EXYNOS_ASV
- bool "Exynos Adaptive Supply Voltage support" if COMPILE_TEST
- depends on (ARCH_EXYNOS && EXYNOS_CHIPID) || COMPILE_TEST
- select EXYNOS_ASV_ARM if ARM && ARCH_EXYNOS
-
# There is no need to enable these drivers for ARMv8
config EXYNOS_ASV_ARM
bool "Exynos ASV ARMv7-specific driver extensions" if COMPILE_TEST
- depends on EXYNOS_ASV
+ depends on EXYNOS_CHIPID
config EXYNOS_CHIPID
- bool "Exynos Chipid controller driver" if COMPILE_TEST
+ bool "Exynos ChipID controller and ASV driver" if COMPILE_TEST
depends on ARCH_EXYNOS || COMPILE_TEST
+ select EXYNOS_ASV_ARM if ARM && ARCH_EXYNOS
select MFD_SYSCON
select SOC_BUS
+ help
+ Support for Samsung Exynos SoC ChipID and Adaptive Supply Voltage.
config EXYNOS_PMU
bool "Exynos PMU controller driver" if COMPILE_TEST
diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile
index 59e8e9453f27..0c523a8de4eb 100644
--- a/drivers/soc/samsung/Makefile
+++ b/drivers/soc/samsung/Makefile
@@ -1,9 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_EXYNOS_ASV) += exynos-asv.o
obj-$(CONFIG_EXYNOS_ASV_ARM) += exynos5422-asv.o
-obj-$(CONFIG_EXYNOS_CHIPID) += exynos-chipid.o
+obj-$(CONFIG_EXYNOS_CHIPID) += exynos-chipid.o exynos-asv.o
obj-$(CONFIG_EXYNOS_PMU) += exynos-pmu.o
obj-$(CONFIG_EXYNOS_PMU_ARM_DRIVERS) += exynos3250-pmu.o exynos4-pmu.o \
diff --git a/drivers/soc/samsung/exynos-asv.c b/drivers/soc/samsung/exynos-asv.c
index 8abf4dfaa5c5..d60af8acc391 100644
--- a/drivers/soc/samsung/exynos-asv.c
+++ b/drivers/soc/samsung/exynos-asv.c
@@ -2,7 +2,9 @@
/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
+ * Copyright (c) 2020 Krzysztof Kozlowski <krzk@kernel.org>
* Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
+ * Author: Krzysztof Kozlowski <krzk@kernel.org>
*
* Samsung Exynos SoC Adaptive Supply Voltage support
*/
@@ -10,12 +12,7 @@
#include <linux/cpu.h>
#include <linux/device.h>
#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/mfd/syscon.h>
-#include <linux/module.h>
#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
#include <linux/pm_opp.h>
#include <linux/regmap.h>
#include <linux/soc/samsung/exynos-chipid.h>
@@ -111,7 +108,7 @@ static int exynos_asv_update_opps(struct exynos_asv *asv)
return 0;
}
-static int exynos_asv_probe(struct platform_device *pdev)
+int exynos_asv_init(struct device *dev, struct regmap *regmap)
{
int (*probe_func)(struct exynos_asv *asv);
struct exynos_asv *asv;
@@ -119,39 +116,39 @@ static int exynos_asv_probe(struct platform_device *pdev)
u32 product_id = 0;
int ret, i;
- cpu_dev = get_cpu_device(0);
- ret = dev_pm_opp_get_opp_count(cpu_dev);
- if (ret < 0)
- return -EPROBE_DEFER;
-
- asv = devm_kzalloc(&pdev->dev, sizeof(*asv), GFP_KERNEL);
+ asv = devm_kzalloc(dev, sizeof(*asv), GFP_KERNEL);
if (!asv)
return -ENOMEM;
- asv->chipid_regmap = device_node_to_regmap(pdev->dev.of_node);
- if (IS_ERR(asv->chipid_regmap)) {
- dev_err(&pdev->dev, "Could not find syscon regmap\n");
- return PTR_ERR(asv->chipid_regmap);
+ asv->chipid_regmap = regmap;
+ asv->dev = dev;
+ ret = regmap_read(asv->chipid_regmap, EXYNOS_CHIPID_REG_PRO_ID,
+ &product_id);
+ if (ret < 0) {
+ dev_err(dev, "Cannot read revision from ChipID: %d\n", ret);
+ return -ENODEV;
}
- regmap_read(asv->chipid_regmap, EXYNOS_CHIPID_REG_PRO_ID, &product_id);
-
switch (product_id & EXYNOS_MASK) {
case 0xE5422000:
probe_func = exynos5422_asv_init;
break;
default:
- return -ENODEV;
+ dev_dbg(dev, "No ASV support for this SoC\n");
+ devm_kfree(dev, asv);
+ return 0;
}
- ret = of_property_read_u32(pdev->dev.of_node, "samsung,asv-bin",
+ cpu_dev = get_cpu_device(0);
+ ret = dev_pm_opp_get_opp_count(cpu_dev);
+ if (ret < 0)
+ return -EPROBE_DEFER;
+
+ ret = of_property_read_u32(dev->of_node, "samsung,asv-bin",
&asv->of_bin);
if (ret < 0)
asv->of_bin = -EINVAL;
- asv->dev = &pdev->dev;
- dev_set_drvdata(&pdev->dev, asv);
-
for (i = 0; i < ARRAY_SIZE(asv->subsys); i++)
asv->subsys[i].asv = asv;
@@ -161,17 +158,3 @@ static int exynos_asv_probe(struct platform_device *pdev)
return exynos_asv_update_opps(asv);
}
-
-static const struct of_device_id exynos_asv_of_device_ids[] = {
- { .compatible = "samsung,exynos4210-chipid" },
- {}
-};
-
-static struct platform_driver exynos_asv_driver = {
- .driver = {
- .name = "exynos-asv",
- .of_match_table = exynos_asv_of_device_ids,
- },
- .probe = exynos_asv_probe,
-};
-module_platform_driver(exynos_asv_driver);
diff --git a/drivers/soc/samsung/exynos-asv.h b/drivers/soc/samsung/exynos-asv.h
index 3fd1f2acd999..dcbe154db31e 100644
--- a/drivers/soc/samsung/exynos-asv.h
+++ b/drivers/soc/samsung/exynos-asv.h
@@ -68,4 +68,6 @@ static inline u32 exynos_asv_opp_get_frequency(const struct exynos_asv_subsys *s
return __asv_get_table_entry(&subsys->table, level, 0);
}
+int exynos_asv_init(struct device *dev, struct regmap *regmap);
+
#endif /* __LINUX_SOC_EXYNOS_ASV_H */
diff --git a/drivers/soc/samsung/exynos-chipid.c b/drivers/soc/samsung/exynos-chipid.c
index 1a76eade2ed6..5c1d0f97f766 100644
--- a/drivers/soc/samsung/exynos-chipid.c
+++ b/drivers/soc/samsung/exynos-chipid.c
@@ -2,20 +2,28 @@
/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
+ * Copyright (c) 2020 Krzysztof Kozlowski <krzk@kernel.org>
*
* Exynos - CHIP ID support
* Author: Pankaj Dubey <pankaj.dubey@samsung.com>
* Author: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
+ * Author: Krzysztof Kozlowski <krzk@kernel.org>
+ *
+ * Samsung Exynos SoC Adaptive Supply Voltage and Chip ID support
*/
-#include <linux/io.h>
+#include <linux/device.h>
+#include <linux/errno.h>
#include <linux/mfd/syscon.h>
#include <linux/of.h>
+#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/soc/samsung/exynos-chipid.h>
#include <linux/sys_soc.h>
+#include "exynos-asv.h"
+
static const struct exynos_soc_id {
const char *name;
unsigned int id;
@@ -36,7 +44,7 @@ static const struct exynos_soc_id {
{ "EXYNOS7420", 0xE7420000 },
};
-static const char * __init product_id_to_soc_id(unsigned int product_id)
+static const char *product_id_to_soc_id(unsigned int product_id)
{
int i;
@@ -46,25 +54,17 @@ static const char * __init product_id_to_soc_id(unsigned int product_id)
return NULL;
}
-static int __init exynos_chipid_early_init(void)
+static int exynos_chipid_probe(struct platform_device *pdev)
{
struct soc_device_attribute *soc_dev_attr;
struct soc_device *soc_dev;
struct device_node *root;
- struct device_node *syscon;
struct regmap *regmap;
u32 product_id;
u32 revision;
int ret;
- syscon = of_find_compatible_node(NULL, NULL,
- "samsung,exynos4210-chipid");
- if (!syscon)
- return -ENODEV;
-
- regmap = device_node_to_regmap(syscon);
- of_node_put(syscon);
-
+ regmap = device_node_to_regmap(pdev->dev.of_node);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
@@ -74,7 +74,8 @@ static int __init exynos_chipid_early_init(void)
revision = product_id & EXYNOS_REV_MASK;
- soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ soc_dev_attr = devm_kzalloc(&pdev->dev, sizeof(*soc_dev_attr),
+ GFP_KERNEL);
if (!soc_dev_attr)
return -ENOMEM;
@@ -84,20 +85,24 @@ static int __init exynos_chipid_early_init(void)
of_property_read_string(root, "model", &soc_dev_attr->machine);
of_node_put(root);
- soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%x", revision);
+ soc_dev_attr->revision = devm_kasprintf(&pdev->dev, GFP_KERNEL,
+ "%x", revision);
soc_dev_attr->soc_id = product_id_to_soc_id(product_id);
if (!soc_dev_attr->soc_id) {
pr_err("Unknown SoC\n");
- ret = -ENODEV;
- goto err;
+ return -ENODEV;
}
/* please note that the actual registration will be deferred */
soc_dev = soc_device_register(soc_dev_attr);
- if (IS_ERR(soc_dev)) {
- ret = PTR_ERR(soc_dev);
+ if (IS_ERR(soc_dev))
+ return PTR_ERR(soc_dev);
+
+ ret = exynos_asv_init(&pdev->dev, regmap);
+ if (ret)
goto err;
- }
+
+ platform_set_drvdata(pdev, soc_dev);
dev_info(soc_device_to_device(soc_dev),
"Exynos: CPU[%s] PRO_ID[0x%x] REV[0x%x] Detected\n",
@@ -106,9 +111,31 @@ static int __init exynos_chipid_early_init(void)
return 0;
err:
- kfree(soc_dev_attr->revision);
- kfree(soc_dev_attr);
+ soc_device_unregister(soc_dev);
+
return ret;
}
-arch_initcall(exynos_chipid_early_init);
+static int exynos_chipid_remove(struct platform_device *pdev)
+{
+ struct soc_device *soc_dev = platform_get_drvdata(pdev);
+
+ soc_device_unregister(soc_dev);
+
+ return 0;
+}
+
+static const struct of_device_id exynos_chipid_of_device_ids[] = {
+ { .compatible = "samsung,exynos4210-chipid" },
+ {}
+};
+
+static struct platform_driver exynos_chipid_driver = {
+ .driver = {
+ .name = "exynos-chipid",
+ .of_match_table = exynos_chipid_of_device_ids,
+ },
+ .probe = exynos_chipid_probe,
+ .remove = exynos_chipid_remove,
+};
+builtin_platform_driver(exynos_chipid_driver);
diff --git a/drivers/soc/samsung/pm_domains.c b/drivers/soc/samsung/pm_domains.c
index ab8582971bfc..5ec0c13f0aaf 100644
--- a/drivers/soc/samsung/pm_domains.c
+++ b/drivers/soc/samsung/pm_domains.c
@@ -16,7 +16,7 @@
#include <linux/delay.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
-#include <linux/sched.h>
+#include <linux/pm_runtime.h>
struct exynos_pm_domain_config {
/* Value for LOCAL_PWR_CFG and STATUS fields for each domain */
@@ -73,15 +73,15 @@ static int exynos_pd_power_off(struct generic_pm_domain *domain)
return exynos_pd_power(domain, false);
}
-static const struct exynos_pm_domain_config exynos4210_cfg __initconst = {
+static const struct exynos_pm_domain_config exynos4210_cfg = {
.local_pwr_cfg = 0x7,
};
-static const struct exynos_pm_domain_config exynos5433_cfg __initconst = {
+static const struct exynos_pm_domain_config exynos5433_cfg = {
.local_pwr_cfg = 0xf,
};
-static const struct of_device_id exynos_pm_domain_of_match[] __initconst = {
+static const struct of_device_id exynos_pm_domain_of_match[] = {
{
.compatible = "samsung,exynos4210-pd",
.data = &exynos4210_cfg,
@@ -92,7 +92,7 @@ static const struct of_device_id exynos_pm_domain_of_match[] __initconst = {
{ },
};
-static __init const char *exynos_get_domain_name(struct device_node *node)
+static const char *exynos_get_domain_name(struct device_node *node)
{
const char *name;
@@ -101,60 +101,44 @@ static __init const char *exynos_get_domain_name(struct device_node *node)
return kstrdup_const(name, GFP_KERNEL);
}
-static __init int exynos4_pm_init_power_domain(void)
+static int exynos_pd_probe(struct platform_device *pdev)
{
- struct device_node *np;
- const struct of_device_id *match;
-
- for_each_matching_node_and_match(np, exynos_pm_domain_of_match, &match) {
- const struct exynos_pm_domain_config *pm_domain_cfg;
- struct exynos_pm_domain *pd;
- int on;
+ const struct exynos_pm_domain_config *pm_domain_cfg;
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct of_phandle_args child, parent;
+ struct exynos_pm_domain *pd;
+ int on, ret;
- pm_domain_cfg = match->data;
+ pm_domain_cfg = of_device_get_match_data(dev);
+ pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
+ if (!pd)
+ return -ENOMEM;
- pd = kzalloc(sizeof(*pd), GFP_KERNEL);
- if (!pd) {
- of_node_put(np);
- return -ENOMEM;
- }
- pd->pd.name = exynos_get_domain_name(np);
- if (!pd->pd.name) {
- kfree(pd);
- of_node_put(np);
- return -ENOMEM;
- }
+ pd->pd.name = exynos_get_domain_name(np);
+ if (!pd->pd.name)
+ return -ENOMEM;
- pd->base = of_iomap(np, 0);
- if (!pd->base) {
- pr_warn("%s: failed to map memory\n", __func__);
- kfree_const(pd->pd.name);
- kfree(pd);
- continue;
- }
-
- pd->pd.power_off = exynos_pd_power_off;
- pd->pd.power_on = exynos_pd_power_on;
- pd->local_pwr_cfg = pm_domain_cfg->local_pwr_cfg;
+ pd->base = of_iomap(np, 0);
+ if (!pd->base) {
+ kfree_const(pd->pd.name);
+ return -ENODEV;
+ }
- on = readl_relaxed(pd->base + 0x4) & pd->local_pwr_cfg;
+ pd->pd.power_off = exynos_pd_power_off;
+ pd->pd.power_on = exynos_pd_power_on;
+ pd->local_pwr_cfg = pm_domain_cfg->local_pwr_cfg;
- pm_genpd_init(&pd->pd, NULL, !on);
- of_genpd_add_provider_simple(np, &pd->pd);
- }
+ on = readl_relaxed(pd->base + 0x4) & pd->local_pwr_cfg;
- /* Assign the child power domains to their parents */
- for_each_matching_node(np, exynos_pm_domain_of_match) {
- struct of_phandle_args child, parent;
+ pm_genpd_init(&pd->pd, NULL, !on);
+ ret = of_genpd_add_provider_simple(np, &pd->pd);
+ if (ret == 0 && of_parse_phandle_with_args(np, "power-domains",
+ "#power-domain-cells", 0, &parent) == 0) {
child.np = np;
child.args_count = 0;
- if (of_parse_phandle_with_args(np, "power-domains",
- "#power-domain-cells", 0,
- &parent) != 0)
- continue;
-
if (of_genpd_add_subdomain(&parent, &child))
pr_warn("%pOF failed to add subdomain: %pOF\n",
parent.np, child.np);
@@ -163,6 +147,21 @@ static __init int exynos4_pm_init_power_domain(void)
parent.np, child.np);
}
- return 0;
+ pm_runtime_enable(dev);
+ return ret;
+}
+
+static struct platform_driver exynos_pd_driver = {
+ .probe = exynos_pd_probe,
+ .driver = {
+ .name = "exynos-pd",
+ .of_match_table = exynos_pm_domain_of_match,
+ .suppress_bind_attrs = true,
+ }
+};
+
+static __init int exynos4_pm_init_power_domain(void)
+{
+ return platform_driver_register(&exynos_pd_driver);
}
core_initcall(exynos4_pm_init_power_domain);