From: Duje Mihanović
Add driver for the APBC controller block found on Marvell's PXA1908 SoC.
Signed-off-by: Duje Mihanović
---
drivers/clk/mmp/Makefile | 2 +-
drivers/clk/mmp/clk-pxa1908-apbc.c | 130 +
2 files changed, 131 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile
index
441bf83080a12b89dd8afca11236ba2a2199795e..685bb80f8ae1f16d967dc4f6f5a6ce4e3f52d2bd
100644
--- a/drivers/clk/mmp/Makefile
+++ b/drivers/clk/mmp/Makefile
@@ -11,4 +11,4 @@ obj-$(CONFIG_MACH_MMP_DT) += clk-of-pxa168.o clk-of-pxa910.o
obj-$(CONFIG_COMMON_CLK_MMP2) += clk-of-mmp2.o clk-pll.o pwr-island.o
obj-$(CONFIG_COMMON_CLK_MMP2_AUDIO) += clk-audio.o
-obj-y += clk-of-pxa1928.o
+obj-$(CONFIG_ARCH_MMP) += clk-of-pxa1928.o clk-pxa1908-apbc.o
diff --git a/drivers/clk/mmp/clk-pxa1908-apbc.c
b/drivers/clk/mmp/clk-pxa1908-apbc.c
new file mode 100644
index
..b93d08466198569a975f580a1a3c27aae2b838c2
--- /dev/null
+++ b/drivers/clk/mmp/clk-pxa1908-apbc.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include
+#include
+#include
+#include
+
+#include
+
+#include "clk.h"
+
+#define APBC_UART0 0x0
+#define APBC_UART1 0x4
+#define APBC_GPIO 0x8
+#define APBC_PWM0 0xc
+#define APBC_PWM1 0x10
+#define APBC_PWM2 0x14
+#define APBC_PWM3 0x18
+#define APBC_SSP0 0x1c
+#define APBC_SSP1 0x20
+#define APBC_IPC_RST 0x24
+#define APBC_RTC 0x28
+#define APBC_TWSI0 0x2c
+#define APBC_KPC 0x30
+#define APBC_SWJTAG0x40
+#define APBC_SSP2 0x4c
+#define APBC_TWSI1 0x60
+#define APBC_THERMAL 0x6c
+#define APBC_TWSI3 0x70
+
+#define APBC_NR_CLKS 19
+
+struct pxa1908_clk_unit {
+ struct mmp_clk_unit unit;
+ void __iomem *base;
+};
+
+static DEFINE_SPINLOCK(pwm0_lock);
+static DEFINE_SPINLOCK(pwm2_lock);
+
+static DEFINE_SPINLOCK(uart0_lock);
+static DEFINE_SPINLOCK(uart1_lock);
+
+static const char * const uart_parent_names[] = {"pll1_117", "uart_pll"};
+static const char * const ssp_parent_names[] = {"pll1_d16", "pll1_d48",
"pll1_d24", "pll1_d12"};
+
+static struct mmp_param_gate_clk apbc_gate_clks[] = {
+ {PXA1908_CLK_TWSI0, "twsi0_clk", "pll1_32", CLK_SET_RATE_PARENT,
APBC_TWSI0, 0x7, 3, 0, 0, NULL},
+ {PXA1908_CLK_TWSI1, "twsi1_clk", "pll1_32", CLK_SET_RATE_PARENT,
APBC_TWSI1, 0x7, 3, 0, 0, NULL},
+ {PXA1908_CLK_TWSI3, "twsi3_clk", "pll1_32", CLK_SET_RATE_PARENT,
APBC_TWSI3, 0x7, 3, 0, 0, NULL},
+ {PXA1908_CLK_GPIO, "gpio_clk", "vctcxo", CLK_SET_RATE_PARENT,
APBC_GPIO, 0x7, 3, 0, 0, NULL},
+ {PXA1908_CLK_KPC, "kpc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_KPC,
0x7, 3, 0, MMP_CLK_GATE_NEED_DELAY, NULL},
+ {PXA1908_CLK_RTC, "rtc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_RTC,
0x87, 0x83, 0, MMP_CLK_GATE_NEED_DELAY, NULL},
+ {PXA1908_CLK_PWM0, "pwm0_clk", "pwm01_apb_share", CLK_SET_RATE_PARENT,
APBC_PWM0, 0x2, 2, 0, 0, &pwm0_lock},
+ {PXA1908_CLK_PWM1, "pwm1_clk", "pwm01_apb_share", CLK_SET_RATE_PARENT,
APBC_PWM1, 0x6, 2, 0, 0, NULL},
+ {PXA1908_CLK_PWM2, "pwm2_clk", "pwm23_apb_share", CLK_SET_RATE_PARENT,
APBC_PWM2, 0x2, 2, 0, 0, NULL},
+ {PXA1908_CLK_PWM3, "pwm3_clk", "pwm23_apb_share", CLK_SET_RATE_PARENT,
APBC_PWM3, 0x6, 2, 0, 0, NULL},
+ {PXA1908_CLK_UART0, "uart0_clk", "uart0_mux", CLK_SET_RATE_PARENT,
APBC_UART0, 0x7, 3, 0, 0, &uart0_lock},
+ {PXA1908_CLK_UART1, "uart1_clk", "uart1_mux", CLK_SET_RATE_PARENT,
APBC_UART1, 0x7, 3, 0, 0, &uart1_lock},
+ {PXA1908_CLK_THERMAL, "thermal_clk", NULL, 0, APBC_THERMAL, 0x7, 3, 0,
0, NULL},
+ {PXA1908_CLK_IPC_RST, "ipc_clk", NULL, 0, APBC_IPC_RST, 0x7, 3, 0, 0,
NULL},
+ {PXA1908_CLK_SSP0, "ssp0_clk", "ssp0_mux", 0, APBC_SSP0, 0x7, 3, 0, 0,
NULL},
+ {PXA1908_CLK_SSP2, "ssp2_clk", "ssp2_mux", 0, APBC_SSP2, 0x7, 3, 0, 0,
NULL},
+};
+
+static struct mmp_param_mux_clk apbc_mux_clks[] = {
+ {0, "uart0_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names),
CLK_SET_RATE_PARENT, APBC_UART0, 4, 3, 0, &uart0_lock},
+ {0, "uart1_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names),
CLK_SET_RATE_PARENT, APBC_UART1, 4, 3, 0, &uart1_lock},
+ {0, "ssp0_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), 0,
APBC_SSP0, 4, 3, 0, NULL},
+ {0, "ssp2_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), 0,
APBC_SSP2, 4, 3, 0, NULL},
+};
+
+static void pxa1908_apb_periph_clk_init(struct pxa1908_clk_unit *pxa_unit)
+{
+ struct mmp_clk_unit *unit = &pxa_unit->unit;
+ struct clk *clk;
+
+ mmp_clk_register_gate(NULL, "pwm01_apb_share", "pll1_d48",
+ CLK_SET_RATE_PARENT,
+ pxa_unit->base + APBC_PWM0,
+ 0x5, 1, 0, 0, &
