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-rw-r--r--Documentation/devicetree/bindings/clock/prima2-clock.txt73
-rw-r--r--arch/arm/boot/dts/prima2.dtsi31
-rw-r--r--drivers/clk/clk-prima2.c205
3 files changed, 183 insertions, 126 deletions
diff --git a/Documentation/devicetree/bindings/clock/prima2-clock.txt b/Documentation/devicetree/bindings/clock/prima2-clock.txt
new file mode 100644
index 000000000000..5016979c0f78
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/prima2-clock.txt
@@ -0,0 +1,73 @@
+* Clock bindings for CSR SiRFprimaII
+
+Required properties:
+- compatible: Should be "sirf,prima2-clkc"
+- reg: Address and length of the register set
+- interrupts: Should contain clock controller interrupt
+- #clock-cells: Should be <1>
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell. The following is a full list of prima2
+clocks and IDs.
+
+ Clock ID
+ ---------------------------
+ rtc 0
+ osc 1
+ pll1 2
+ pll2 3
+ pll3 4
+ mem 5
+ sys 6
+ security 7
+ dsp 8
+ gps 9
+ mf 10
+ io 11
+ cpu 12
+ uart0 13
+ uart1 14
+ uart2 15
+ tsc 16
+ i2c0 17
+ i2c1 18
+ spi0 19
+ spi1 20
+ pwmc 21
+ efuse 22
+ pulse 23
+ dmac0 24
+ dmac1 25
+ nand 26
+ audio 27
+ usp0 28
+ usp1 29
+ usp2 30
+ vip 31
+ gfx 32
+ mm 33
+ lcd 34
+ vpp 35
+ mmc01 36
+ mmc23 37
+ mmc45 38
+ usbpll 39
+ usb0 40
+ usb1 41
+
+Examples:
+
+clks: clock-controller@88000000 {
+ compatible = "sirf,prima2-clkc";
+ reg = <0x88000000 0x1000>;
+ interrupts = <3>;
+ #clock-cells = <1>;
+};
+
+i2c0: i2c@b00e0000 {
+ cell-index = <0>;
+ compatible = "sirf,prima2-i2c";
+ reg = <0xb00e0000 0x10000>;
+ interrupts = <24>;
+ clocks = <&clks 17>;
+};
diff --git a/arch/arm/boot/dts/prima2.dtsi b/arch/arm/boot/dts/prima2.dtsi
index 055fca542120..3329719a9412 100644
--- a/arch/arm/boot/dts/prima2.dtsi
+++ b/arch/arm/boot/dts/prima2.dtsi
@@ -58,10 +58,11 @@
#size-cells = <1>;
ranges = <0x88000000 0x88000000 0x40000>;
- clock-controller@88000000 {
+ clks: clock-controller@88000000 {
compatible = "sirf,prima2-clkc";
reg = <0x88000000 0x1000>;
interrupts = <3>;
+ #clock-cells = <1>;
};
reset-controller@88010000 {
@@ -85,6 +86,7 @@
compatible = "sirf,prima2-memc";
reg = <0x90000000 0x10000>;
interrupts = <27>;
+ clocks = <&clks 5>;
};
};
@@ -104,6 +106,7 @@
compatible = "sirf,prima2-vpp";
reg = <0x90020000 0x10000>;
interrupts = <31>;
+ clocks = <&clks 35>;
};
};
@@ -117,6 +120,7 @@
compatible = "powervr,sgx531";
reg = <0x98000000 0x8000000>;
interrupts = <6>;
+ clocks = <&clks 32>;
};
};
@@ -130,6 +134,7 @@
compatible = "sirf,prima2-video-codec";
reg = <0xa0000000 0x8000000>;
interrupts = <5>;
+ clocks = <&clks 33>;
};
};
@@ -149,12 +154,14 @@
compatible = "sirf,prima2-gps";
reg = <0xa8010000 0x10000>;
interrupts = <7>;
+ clocks = <&clks 9>;
};
dsp@a9000000 {
compatible = "sirf,prima2-dsp";
reg = <0xa9000000 0x1000000>;
interrupts = <8>;
+ clocks = <&clks 8>;
};
};
@@ -174,12 +181,14 @@
compatible = "sirf,prima2-nand";
reg = <0xb0030000 0x10000>;
interrupts = <41>;
+ clocks = <&clks 26>;
};
audio@b0040000 {
compatible = "sirf,prima2-audio";
reg = <0xb0040000 0x10000>;
interrupts = <35>;
+ clocks = <&clks 27>;
};
uart0: uart@b0050000 {
@@ -187,6 +196,7 @@
compatible = "sirf,prima2-uart";
reg = <0xb0050000 0x10000>;
interrupts = <17>;
+ clocks = <&clks 13>;
};
uart1: uart@b0060000 {
@@ -194,6 +204,7 @@
compatible = "sirf,prima2-uart";
reg = <0xb0060000 0x10000>;
interrupts = <18>;
+ clocks = <&clks 14>;
};
uart2: uart@b0070000 {
@@ -201,6 +212,7 @@
compatible = "sirf,prima2-uart";
reg = <0xb0070000 0x10000>;
interrupts = <19>;
+ clocks = <&clks 15>;
};
usp0: usp@b0080000 {
@@ -208,6 +220,7 @@
compatible = "sirf,prima2-usp";
reg = <0xb0080000 0x10000>;
interrupts = <20>;
+ clocks = <&clks 28>;
};
usp1: usp@b0090000 {
@@ -215,6 +228,7 @@
compatible = "sirf,prima2-usp";
reg = <0xb0090000 0x10000>;
interrupts = <21>;
+ clocks = <&clks 29>;
};
usp2: usp@b00a0000 {
@@ -222,6 +236,7 @@
compatible = "sirf,prima2-usp";
reg = <0xb00a0000 0x10000>;
interrupts = <22>;
+ clocks = <&clks 30>;
};
dmac0: dma-controller@b00b0000 {
@@ -229,6 +244,7 @@
compatible = "sirf,prima2-dmac";
reg = <0xb00b0000 0x10000>;
interrupts = <12>;
+ clocks = <&clks 24>;
};
dmac1: dma-controller@b0160000 {
@@ -236,11 +252,13 @@
compatible = "sirf,prima2-dmac";
reg = <0xb0160000 0x10000>;
interrupts = <13>;
+ clocks = <&clks 25>;
};
vip@b00C0000 {
compatible = "sirf,prima2-vip";
reg = <0xb00C0000 0x10000>;
+ clocks = <&clks 31>;
};
spi0: spi@b00d0000 {
@@ -248,6 +266,7 @@
compatible = "sirf,prima2-spi";
reg = <0xb00d0000 0x10000>;
interrupts = <15>;
+ clocks = <&clks 19>;
};
spi1: spi@b0170000 {
@@ -255,6 +274,7 @@
compatible = "sirf,prima2-spi";
reg = <0xb0170000 0x10000>;
interrupts = <16>;
+ clocks = <&clks 20>;
};
i2c0: i2c@b00e0000 {
@@ -262,6 +282,7 @@
compatible = "sirf,prima2-i2c";
reg = <0xb00e0000 0x10000>;
interrupts = <24>;
+ clocks = <&clks 17>;
};
i2c1: i2c@b00f0000 {
@@ -269,12 +290,14 @@
compatible = "sirf,prima2-i2c";
reg = <0xb00f0000 0x10000>;
interrupts = <25>;
+ clocks = <&clks 18>;
};
tsc@b0110000 {
compatible = "sirf,prima2-tsc";
reg = <0xb0110000 0x10000>;
interrupts = <33>;
+ clocks = <&clks 16>;
};
gpio: pinctrl@b0120000 {
@@ -507,17 +530,20 @@
pwm@b0130000 {
compatible = "sirf,prima2-pwm";
reg = <0xb0130000 0x10000>;
+ clocks = <&clks 21>;
};
efusesys@b0140000 {
compatible = "sirf,prima2-efuse";
reg = <0xb0140000 0x10000>;
+ clocks = <&clks 22>;
};
pulsec@b0150000 {
compatible = "sirf,prima2-pulsec";
reg = <0xb0150000 0x10000>;
interrupts = <48>;
+ clocks = <&clks 23>;
};
pci-iobg {
@@ -616,12 +642,14 @@
compatible = "chipidea,ci13611a-prima2";
reg = <0xb8000000 0x10000>;
interrupts = <10>;
+ clocks = <&clks 40>;
};
usb1: usb@b00f0000 {
compatible = "chipidea,ci13611a-prima2";
reg = <0xb8010000 0x10000>;
interrupts = <11>;
+ clocks = <&clks 41>;
};
sata@b00f0000 {
@@ -634,6 +662,7 @@
compatible = "sirf,prima2-security";
reg = <0xb8030000 0x10000>;
interrupts = <42>;
+ clocks = <&clks 7>;
};
};
};
diff --git a/drivers/clk/clk-prima2.c b/drivers/clk/clk-prima2.c
index a203ecccdc4f..f8e9d0c27be2 100644
--- a/drivers/clk/clk-prima2.c
+++ b/drivers/clk/clk-prima2.c
@@ -1025,20 +1025,67 @@ static struct of_device_id rsc_ids[] = {
{},
};
+enum prima2_clk_index {
+ /* 0 1 2 3 4 5 6 7 8 9 */
+ rtc, osc, pll1, pll2, pll3, mem, sys, security, dsp, gps,
+ mf, io, cpu, uart0, uart1, uart2, tsc, i2c0, i2c1, spi0,
+ spi1, pwmc, efuse, pulse, dmac0, dmac1, nand, audio, usp0, usp1,
+ usp2, vip, gfx, mm, lcd, vpp, mmc01, mmc23, mmc45, usbpll,
+ usb0, usb1, maxclk,
+};
+
+static __initdata struct clk_hw* prima2_clk_hw_array[maxclk] = {
+ NULL, /* dummy */
+ NULL,
+ &clk_pll1.hw,
+ &clk_pll2.hw,
+ &clk_pll3.hw,
+ &clk_mem.hw,
+ &clk_sys.hw,
+ &clk_security.hw,
+ &clk_dsp.hw,
+ &clk_gps.hw,
+ &clk_mf.hw,
+ &clk_io.hw,
+ &clk_cpu.hw,
+ &clk_uart0.hw,
+ &clk_uart1.hw,
+ &clk_uart2.hw,
+ &clk_tsc.hw,
+ &clk_i2c0.hw,
+ &clk_i2c1.hw,
+ &clk_spi0.hw,
+ &clk_spi1.hw,
+ &clk_pwmc.hw,
+ &clk_efuse.hw,
+ &clk_pulse.hw,
+ &clk_dmac0.hw,
+ &clk_dmac1.hw,
+ &clk_nand.hw,
+ &clk_audio.hw,
+ &clk_usp0.hw,
+ &clk_usp1.hw,
+ &clk_usp2.hw,
+ &clk_vip.hw,
+ &clk_gfx.hw,
+ &clk_mm.hw,
+ &clk_lcd.hw,
+ &clk_vpp.hw,
+ &clk_mmc01.hw,
+ &clk_mmc23.hw,
+ &clk_mmc45.hw,
+ &usb_pll_clk_hw,
+ &clk_usb0.hw,
+ &clk_usb1.hw,
+};
+
+static struct clk *prima2_clks[maxclk];
+static struct clk_onecell_data clk_data;
+
void __init sirfsoc_of_clk_init(void)
{
- struct clk *clk;
struct device_node *np;
-
- np = of_find_matching_node(NULL, clkc_ids);
- if (!np)
- panic("unable to find compatible clkc node in dtb\n");
-
- sirfsoc_clk_vbase = of_iomap(np, 0);
- if (!sirfsoc_clk_vbase)
- panic("unable to map clkc registers\n");
-
- of_node_put(np);
+ int i;
np = of_find_matching_node(NULL, rsc_ids);
if (!np)
@@ -1050,122 +1097,30 @@ void __init sirfsoc_of_clk_init(void)
of_node_put(np);
+ np = of_find_matching_node(NULL, clkc_ids);
+ if (!np)
+ return;
+
+ sirfsoc_clk_vbase = of_iomap(np, 0);
+ if (!sirfsoc_clk_vbase)
+ panic("unable to map clkc registers\n");
/* These are always available (RTC and 26MHz OSC)*/
- clk = clk_register_fixed_rate(NULL, "rtc", NULL,
+ prima2_clks[rtc] = clk_register_fixed_rate(NULL, "rtc", NULL,
CLK_IS_ROOT, 32768);
- BUG_ON(IS_ERR(clk));
- clk = clk_register_fixed_rate(NULL, "osc", NULL,
+ prima2_clks[osc]= clk_register_fixed_rate(NULL, "osc", NULL,
CLK_IS_ROOT, 26000000);
- BUG_ON(IS_ERR(clk));
-
- clk = clk_register(NULL, &clk_pll1.hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &clk_pll2.hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &clk_pll3.hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &clk_mem.hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &clk_sys.hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &clk_security.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b8030000.security");
- clk = clk_register(NULL, &clk_dsp.hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &clk_gps.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "a8010000.gps");
- clk = clk_register(NULL, &clk_mf.hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &clk_io.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "io");
- clk = clk_register(NULL, &clk_cpu.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "cpu");
- clk = clk_register(NULL, &clk_uart0.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0050000.uart");
- clk = clk_register(NULL, &clk_uart1.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0060000.uart");
- clk = clk_register(NULL, &clk_uart2.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0070000.uart");
- clk = clk_register(NULL, &clk_tsc.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0110000.tsc");
- clk = clk_register(NULL, &clk_i2c0.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b00e0000.i2c");
- clk = clk_register(NULL, &clk_i2c1.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b00f0000.i2c");
- clk = clk_register(NULL, &clk_spi0.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b00d0000.spi");
- clk = clk_register(NULL, &clk_spi1.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0170000.spi");
- clk = clk_register(NULL, &clk_pwmc.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0130000.pwm");
- clk = clk_register(NULL, &clk_efuse.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0140000.efusesys");
- clk = clk_register(NULL, &clk_pulse.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0150000.pulsec");
- clk = clk_register(NULL, &clk_dmac0.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b00b0000.dma-controller");
- clk = clk_register(NULL, &clk_dmac1.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0160000.dma-controller");
- clk = clk_register(NULL, &clk_nand.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0030000.nand");
- clk = clk_register(NULL, &clk_audio.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0040000.audio");
- clk = clk_register(NULL, &clk_usp0.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0080000.usp");
- clk = clk_register(NULL, &clk_usp1.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b0090000.usp");
- clk = clk_register(NULL, &clk_usp2.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b00a0000.usp");
- clk = clk_register(NULL, &clk_vip.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b00c0000.vip");
- clk = clk_register(NULL, &clk_gfx.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "98000000.graphics");
- clk = clk_register(NULL, &clk_mm.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "a0000000.multimedia");
- clk = clk_register(NULL, &clk_lcd.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "90010000.display");
- clk = clk_register(NULL, &clk_vpp.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "90020000.vpp");
- clk = clk_register(NULL, &clk_mmc01.hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &clk_mmc23.hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &clk_mmc45.hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &usb_pll_clk_hw);
- BUG_ON(IS_ERR(clk));
- clk = clk_register(NULL, &clk_usb0.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b00e0000.usb");
- clk = clk_register(NULL, &clk_usb1.hw);
- BUG_ON(IS_ERR(clk));
- clk_register_clkdev(clk, NULL, "b00f0000.usb");
+
+ for (i = pll1; i < maxclk; i++) {
+ prima2_clks[i] = clk_register(NULL, prima2_clk_hw_array[i]);
+ BUG_ON(!prima2_clks[i]);
+ }
+ clk_register_clkdev(prima2_clks[cpu], NULL, "cpu");
+ clk_register_clkdev(prima2_clks[io], NULL, "io");
+ clk_register_clkdev(prima2_clks[mem], NULL, "mem");
+
+ clk_data.clks = prima2_clks;
+ clk_data.clk_num = maxclk;
+
+ of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.