compatible = "fixed-clock";
clock-frequency = <13000000>;
};
+ /* Slow bridge clocks under PLL13 */
+ slow_clk: slow_clk@13M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <0>; /* Slow */
+ clock-id = <0>;
+ clocks = <&pll13>;
+ };
+ uart0_clk: uart0_clk@13M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <0>; /* Slow */
+ clock-id = <1>;
+ clocks = <&slow_clk>;
+ };
+ gpio_clk: gpio_clk@13M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <0>; /* Slow */
+ clock-id = <4>;
+ clocks = <&slow_clk>;
+ };
+ rtc_clk: rtc_clk@13M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <0>; /* Slow */
+ clock-id = <6>;
+ clocks = <&slow_clk>;
+ };
+ apptimer_clk: app_tmr_clk@13M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <0>; /* Slow */
+ clock-id = <7>;
+ clocks = <&slow_clk>;
+ };
+ acc_tmr_clk@13M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <0>; /* Slow */
+ clock-id = <8>;
+ clocks = <&slow_clk>;
+ };
pll208: pll208@208M {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-mult = <1>;
clocks = <&pll208>;
};
+ cpu_clk@208M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <2>; /* Rest */
+ clock-id = <3>;
+ clocks = <&app208>;
+ };
app104: app_104_clk@104M {
#clock-cells = <0>;
compatible = "fixed-factor-clock";
clock-mult = <1>;
clocks = <&pll208>;
};
+ semi_clk@104M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <2>; /* Rest */
+ clock-id = <9>;
+ clocks = <&app104>;
+ };
app52: app_52_clk@52M {
#clock-cells = <0>;
compatible = "fixed-factor-clock";
clock-mult = <1>;
clocks = <&pll208>;
};
+ /* AHB subsystem clocks */
+ ahb_clk: ahb_subsys_clk@52M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <2>; /* Rest */
+ clock-id = <10>;
+ clocks = <&app52>;
+ };
+ intcon_clk@52M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <2>; /* Rest */
+ clock-id = <12>;
+ clocks = <&ahb_clk>;
+ };
+ emif_clk@52M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <2>; /* Rest */
+ clock-id = <5>;
+ clocks = <&ahb_clk>;
+ };
+ dmac_clk: dmac_clk@52M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <2>; /* Rest */
+ clock-id = <4>;
+ clocks = <&app52>;
+ };
+ fsmc_clk: fsmc_clk@52M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <2>; /* Rest */
+ clock-id = <6>;
+ clocks = <&app52>;
+ };
+ xgam_clk: xgam_clk@52M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <2>; /* Rest */
+ clock-id = <8>;
+ clocks = <&app52>;
+ };
app26: app_26_clk@26M {
#clock-cells = <0>;
compatible = "fixed-factor-clock";
clock-mult = <1>;
clocks = <&app52>;
};
+ /* Fast bridge clocks */
+ fast_clk: fast_clk@26M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <1>; /* Fast */
+ clock-id = <0>;
+ clocks = <&app26>;
+ };
+ i2c0_clk: i2c0_clk@26M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <1>; /* Fast */
+ clock-id = <1>;
+ clocks = <&fast_clk>;
+ };
+ i2c1_clk: i2c1_clk@26M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <1>; /* Fast */
+ clock-id = <2>;
+ clocks = <&fast_clk>;
+ };
+ mmc_pclk: mmc_p_clk@26M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <1>; /* Fast */
+ clock-id = <5>;
+ clocks = <&fast_clk>;
+ };
+ spi_clk: spi_p_clk@26M {
+ #clock-cells = <0>;
+ compatible = "stericsson,u300-syscon-clk";
+ clock-type = <1>; /* Fast */
+ clock-id = <6>;
+ clocks = <&fast_clk>;
+ };
};
timer: timer@c0014000 {
reg = <0xc0014000 0x1000>;
interrupt-parent = <&vica>;
interrupts = <24 25 26 27>;
+ clocks = <&apptimer_clk>;
};
gpio: gpio@c0016000 {
reg = <0xc0016000 0x1000>;
interrupt-parent = <&vicb>;
interrupts = <0 1 2 18 21 22 23>;
+ clocks = <&gpio_clk>;
interrupt-names = "gpio0", "gpio1", "gpio2", "gpio3",
"gpio4", "gpio5", "gpio6";
interrupt-controller;
reg = <0xc0017000 0x1000>;
interrupt-parent = <&vicb>;
interrupts = <10>;
+ clocks = <&rtc_clk>;
};
dmac: dma-controller@c00020000 {
interrupts = <2>;
#dma-cells = <1>;
dma-channels = <40>;
+ clocks = <&dmac_clk>;
};
/* A NAND flash of 128 MiB */
<0x80010000 0x4000>; /* NAND Base CMD */
reg-names = "fsmc_regs", "nand_data", "nand_addr", "nand_cmd";
nand-skip-bbtscan;
+ clocks = <&fsmc_clk>;
partition@0 {
label = "boot records";
reg = <0xc0004000 0x1000>;
interrupt-parent = <&vicb>;
interrupts = <8>;
+ clocks = <&i2c0_clk>;
#address-cells = <1>;
#size-cells = <0>;
ab3100: ab3100@0x48 {
reg = <0xc0005000 0x1000>;
interrupt-parent = <&vicb>;
interrupts = <9>;
+ clocks = <&i2c1_clk>;
#address-cells = <1>;
#size-cells = <0>;
fwcam0: fwcam@0x10 {
reg = <0xc0013000 0x1000>;
interrupt-parent = <&vica>;
interrupts = <22>;
+ clocks = <&uart0_clk>, <&uart0_clk>;
+ clock-names = "apb_pclk", "uart0_clk";
dmas = <&dmac 17 &dmac 18>;
dma-names = "tx", "rx";
};
reg = <0xc0001000 0x1000>;
interrupt-parent = <&vicb>;
interrupts = <6 7>;
+ clocks = <&mmc_pclk>;
+ clock-names = "apb_pclk";
max-frequency = <24000000>;
bus-width = <4>; // SD-card slot
mmc-cap-mmc-highspeed;
reg = <0xc0006000 0x1000>;
interrupt-parent = <&vica>;
interrupts = <23>;
+ clocks = <&spi_clk>, <&spi_clk>;
+ clock-names = "apb_pclk", "spi_clk";
dmas = <&dmac 27 &dmac 28>;
dma-names = "tx", "rx";
num-cs = <3>;
return clk;
}
+#define U300_CLK_TYPE_SLOW 0
+#define U300_CLK_TYPE_FAST 1
+#define U300_CLK_TYPE_REST 2
+
+/**
+ * struct u300_clock - defines the bits and pieces for a certain clock
+ * @type: the clock type, slow fast or rest
+ * @id: the bit in the slow/fast/rest register for this clock
+ * @hw_ctrld: whether the clock is hardware controlled
+ * @clk_val: a value to poke in the one-write enable/disable registers
+ */
+struct u300_clock {
+ u8 type;
+ u8 id;
+ bool hw_ctrld;
+ u16 clk_val;
+};
+
+struct u300_clock const __initconst u300_clk_lookup[] = {
+ {
+ .type = U300_CLK_TYPE_REST,
+ .id = 3,
+ .hw_ctrld = true,
+ .clk_val = U300_SYSCON_SBCER_CPU_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_REST,
+ .id = 4,
+ .hw_ctrld = true,
+ .clk_val = U300_SYSCON_SBCER_DMAC_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_REST,
+ .id = 5,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_EMIF_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_REST,
+ .id = 6,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_NANDIF_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_REST,
+ .id = 8,
+ .hw_ctrld = true,
+ .clk_val = U300_SYSCON_SBCER_XGAM_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_REST,
+ .id = 9,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_SEMI_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_REST,
+ .id = 10,
+ .hw_ctrld = true,
+ .clk_val = U300_SYSCON_SBCER_AHB_SUBSYS_BRIDGE_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_REST,
+ .id = 12,
+ .hw_ctrld = false,
+ /* INTCON: cannot be enabled, just taken out of reset */
+ .clk_val = 0xFFFFU,
+ },
+ {
+ .type = U300_CLK_TYPE_FAST,
+ .id = 0,
+ .hw_ctrld = true,
+ .clk_val = U300_SYSCON_SBCER_FAST_BRIDGE_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_FAST,
+ .id = 1,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_I2C0_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_FAST,
+ .id = 2,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_I2C1_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_FAST,
+ .id = 5,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_MMC_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_FAST,
+ .id = 6,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_SPI_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_SLOW,
+ .id = 0,
+ .hw_ctrld = true,
+ .clk_val = U300_SYSCON_SBCER_SLOW_BRIDGE_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_SLOW,
+ .id = 1,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_UART_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_SLOW,
+ .id = 4,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_GPIO_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_SLOW,
+ .id = 6,
+ .hw_ctrld = true,
+ /* No clock enable register bit */
+ .clk_val = 0xFFFFU,
+ },
+ {
+ .type = U300_CLK_TYPE_SLOW,
+ .id = 7,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_APP_TMR_CLK_EN,
+ },
+ {
+ .type = U300_CLK_TYPE_SLOW,
+ .id = 8,
+ .hw_ctrld = false,
+ .clk_val = U300_SYSCON_SBCER_ACC_TMR_CLK_EN,
+ },
+};
+
+static void __init of_u300_syscon_clk_init(struct device_node *np)
+{
+ struct clk *clk = ERR_PTR(-EINVAL);
+ const char *clk_name = np->name;
+ const char *parent_name;
+ void __iomem *res_reg;
+ void __iomem *en_reg;
+ u32 clk_type;
+ u32 clk_id;
+ int i;
+
+ if (of_property_read_u32(np, "clock-type", &clk_type)) {
+ pr_err("%s: syscon clock \"%s\" missing clock-type property\n",
+ __func__, clk_name);
+ return;
+ }
+ if (of_property_read_u32(np, "clock-id", &clk_id)) {
+ pr_err("%s: syscon clock \"%s\" missing clock-id property\n",
+ __func__, clk_name);
+ return;
+ }
+ parent_name = of_clk_get_parent_name(np, 0);
+
+ switch (clk_type) {
+ case U300_CLK_TYPE_SLOW:
+ res_reg = syscon_vbase + U300_SYSCON_RSR;
+ en_reg = syscon_vbase + U300_SYSCON_CESR;
+ break;
+ case U300_CLK_TYPE_FAST:
+ res_reg = syscon_vbase + U300_SYSCON_RFR;
+ en_reg = syscon_vbase + U300_SYSCON_CEFR;
+ break;
+ case U300_CLK_TYPE_REST:
+ res_reg = syscon_vbase + U300_SYSCON_RRR;
+ en_reg = syscon_vbase + U300_SYSCON_CERR;
+ break;
+ default:
+ pr_err("unknown clock type %x specified\n", clk_type);
+ return;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(u300_clk_lookup); i++) {
+ const struct u300_clock *u3clk = &u300_clk_lookup[i];
+
+ if (u3clk->type == clk_type && u3clk->id == clk_id)
+ clk = syscon_clk_register(NULL,
+ clk_name, parent_name,
+ 0, u3clk->hw_ctrld,
+ res_reg, u3clk->id,
+ en_reg, u3clk->id,
+ u3clk->clk_val);
+ }
+
+ if (!IS_ERR(clk)) {
+ of_clk_add_provider(np, of_clk_src_simple_get, clk);
+
+ /*
+ * Some few system clocks - device tree does not
+ * represent clocks without a corresponding device node.
+ * for now we add these three clocks here.
+ */
+ if (clk_type == U300_CLK_TYPE_REST && clk_id == 5)
+ clk_register_clkdev(clk, NULL, "pl172");
+ if (clk_type == U300_CLK_TYPE_REST && clk_id == 9)
+ clk_register_clkdev(clk, NULL, "semi");
+ if (clk_type == U300_CLK_TYPE_REST && clk_id == 12)
+ clk_register_clkdev(clk, NULL, "intcon");
+ }
+}
+
/**
* struct clk_mclk - U300 MCLK clock (MMC/SD clock)
* @hw: corresponding clock hardware entry
.compatible = "fixed-factor-clock",
.data = of_fixed_factor_clk_setup,
},
+ {
+ .compatible = "stericsson,u300-syscon-clk",
+ .data = of_u300_syscon_clk_init,
+ },
};
void __init u300_clk_init(void __iomem *base)
of_clk_init(u300_clk_match);
- /* Directly on the AMBA interconnect */
- clk = syscon_clk_register(NULL, "cpu_clk", "app_208_clk", 0, true,
- syscon_vbase + U300_SYSCON_RRR, 3,
- syscon_vbase + U300_SYSCON_CERR, 3,
- U300_SYSCON_SBCER_CPU_CLK_EN);
- clk = syscon_clk_register(NULL, "dmac_clk", "app_52_clk", 0, true,
- syscon_vbase + U300_SYSCON_RRR, 4,
- syscon_vbase + U300_SYSCON_CERR, 4,
- U300_SYSCON_SBCER_DMAC_CLK_EN);
- clk_register_clkdev(clk, NULL, "dma");
- clk = syscon_clk_register(NULL, "fsmc_clk", "app_52_clk", 0, false,
- syscon_vbase + U300_SYSCON_RRR, 6,
- syscon_vbase + U300_SYSCON_CERR, 6,
- U300_SYSCON_SBCER_NANDIF_CLK_EN);
- clk_register_clkdev(clk, NULL, "fsmc-nand");
- clk = syscon_clk_register(NULL, "xgam_clk", "app_52_clk", 0, true,
- syscon_vbase + U300_SYSCON_RRR, 8,
- syscon_vbase + U300_SYSCON_CERR, 8,
- U300_SYSCON_SBCER_XGAM_CLK_EN);
- clk_register_clkdev(clk, NULL, "xgam");
- clk = syscon_clk_register(NULL, "semi_clk", "app_104_clk", 0, false,
- syscon_vbase + U300_SYSCON_RRR, 9,
- syscon_vbase + U300_SYSCON_CERR, 9,
- U300_SYSCON_SBCER_SEMI_CLK_EN);
- clk_register_clkdev(clk, NULL, "semi");
-
- /* AHB bridge clocks */
- clk = syscon_clk_register(NULL, "ahb_subsys_clk", "app_52_clk", 0, true,
- syscon_vbase + U300_SYSCON_RRR, 10,
- syscon_vbase + U300_SYSCON_CERR, 10,
- U300_SYSCON_SBCER_AHB_SUBSYS_BRIDGE_CLK_EN);
- clk = syscon_clk_register(NULL, "intcon_clk", "ahb_subsys_clk", 0, false,
- syscon_vbase + U300_SYSCON_RRR, 12,
- syscon_vbase + U300_SYSCON_CERR, 12,
- /* Cannot be enabled, just taken out of reset */
- 0xFFFFU);
- clk_register_clkdev(clk, NULL, "intcon");
- clk = syscon_clk_register(NULL, "emif_clk", "ahb_subsys_clk", 0, false,
- syscon_vbase + U300_SYSCON_RRR, 5,
- syscon_vbase + U300_SYSCON_CERR, 5,
- U300_SYSCON_SBCER_EMIF_CLK_EN);
- clk_register_clkdev(clk, NULL, "pl172");
-
- /* FAST bridge clocks */
- clk = syscon_clk_register(NULL, "fast_clk", "app_26_clk", 0, true,
- syscon_vbase + U300_SYSCON_RFR, 0,
- syscon_vbase + U300_SYSCON_CEFR, 0,
- U300_SYSCON_SBCER_FAST_BRIDGE_CLK_EN);
- clk = syscon_clk_register(NULL, "i2c0_p_clk", "fast_clk", 0, false,
- syscon_vbase + U300_SYSCON_RFR, 1,
- syscon_vbase + U300_SYSCON_CEFR, 1,
- U300_SYSCON_SBCER_I2C0_CLK_EN);
- clk_register_clkdev(clk, NULL, "stu300.0");
- clk = syscon_clk_register(NULL, "i2c1_p_clk", "fast_clk", 0, false,
- syscon_vbase + U300_SYSCON_RFR, 2,
- syscon_vbase + U300_SYSCON_CEFR, 2,
- U300_SYSCON_SBCER_I2C1_CLK_EN);
- clk_register_clkdev(clk, NULL, "stu300.1");
- clk = syscon_clk_register(NULL, "mmc_p_clk", "fast_clk", 0, false,
- syscon_vbase + U300_SYSCON_RFR, 5,
- syscon_vbase + U300_SYSCON_CEFR, 5,
- U300_SYSCON_SBCER_MMC_CLK_EN);
- clk_register_clkdev(clk, "apb_pclk", "mmci");
- clk = syscon_clk_register(NULL, "spi_p_clk", "fast_clk", 0, false,
- syscon_vbase + U300_SYSCON_RFR, 6,
- syscon_vbase + U300_SYSCON_CEFR, 6,
- U300_SYSCON_SBCER_SPI_CLK_EN);
- /* The SPI has no external clock for the outward bus, uses the pclk */
- clk_register_clkdev(clk, NULL, "pl022");
- clk_register_clkdev(clk, "apb_pclk", "pl022");
-
- /* SLOW bridge clocks */
- clk = syscon_clk_register(NULL, "slow_clk", "pll13", 0, true,
- syscon_vbase + U300_SYSCON_RSR, 0,
- syscon_vbase + U300_SYSCON_CESR, 0,
- U300_SYSCON_SBCER_SLOW_BRIDGE_CLK_EN);
- clk = syscon_clk_register(NULL, "uart0_clk", "slow_clk", 0, false,
- syscon_vbase + U300_SYSCON_RSR, 1,
- syscon_vbase + U300_SYSCON_CESR, 1,
- U300_SYSCON_SBCER_UART_CLK_EN);
- /* Same clock is used for APB and outward bus */
- clk_register_clkdev(clk, NULL, "uart0");
- clk_register_clkdev(clk, "apb_pclk", "uart0");
- clk = syscon_clk_register(NULL, "gpio_clk", "slow_clk", 0, false,
- syscon_vbase + U300_SYSCON_RSR, 4,
- syscon_vbase + U300_SYSCON_CESR, 4,
- U300_SYSCON_SBCER_GPIO_CLK_EN);
- clk_register_clkdev(clk, NULL, "u300-gpio");
- clk = syscon_clk_register(NULL, "keypad_clk", "slow_clk", 0, false,
- syscon_vbase + U300_SYSCON_RSR, 5,
- syscon_vbase + U300_SYSCON_CESR, 6,
- U300_SYSCON_SBCER_KEYPAD_CLK_EN);
- clk_register_clkdev(clk, NULL, "coh901461-keypad");
- clk = syscon_clk_register(NULL, "rtc_clk", "slow_clk", 0, true,
- syscon_vbase + U300_SYSCON_RSR, 6,
- /* No clock enable register bit */
- NULL, 0, 0xFFFFU);
- clk_register_clkdev(clk, NULL, "rtc-coh901331");
- clk = syscon_clk_register(NULL, "app_tmr_clk", "slow_clk", 0, false,
- syscon_vbase + U300_SYSCON_RSR, 7,
- syscon_vbase + U300_SYSCON_CESR, 7,
- U300_SYSCON_SBCER_APP_TMR_CLK_EN);
- clk_register_clkdev(clk, NULL, "apptimer");
- clk = syscon_clk_register(NULL, "acc_tmr_clk", "slow_clk", 0, false,
- syscon_vbase + U300_SYSCON_RSR, 8,
- syscon_vbase + U300_SYSCON_CESR, 8,
- U300_SYSCON_SBCER_ACC_TMR_CLK_EN);
- clk_register_clkdev(clk, NULL, "timer");
-
/* Then this special MMC/SD clock */
clk = mclk_clk_register(NULL, "mmc_clk", "mmc_p_clk", false);
clk_register_clkdev(clk, NULL, "mmci");
projects / karo-tx-linux.git / commitdiff