* 'next/soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
MAINTAINERS: add maintainer of CSR SiRFprimaII machine
ARM: CSR: initializing L2 cache
ARM: CSR: mapping early DEBUG_LL uart
ARM: CSR: Adding CSR SiRFprimaII board support
OMAP4: clocks: Update the clock tree with 4460 clock nodes
OMAP4: PRCM: OMAP4460 specific PRM and CM register bitshifts
OMAP4: ID: add omap_has_feature for max freq supported
OMAP: ID: introduce chip detection for OMAP4460
ARM: Xilinx: merge board file into main platform code
ARM: Xilinx: Adding Xilinx board support
Fix up conflicts in arch/arm/mach-omap2/cm-regbits-44xx.h
--- /dev/null
+prima2 "cb" evalutation board
+Required root node properties:
+ - compatible = "sirf,prima2-cb", "sirf,prima2";
--- /dev/null
+Xilinx Zynq EP107 Emulation Platform board
+
+This board is an emulation platform for the Zynq product which is
+based on an ARM Cortex A9 processor.
+
+Required root node properties:
+ - compatible = "xlnx,zynq-ep107";
S: Maintained
F: arch/arm/mach-gemini/
+ARM/CSR SIRFPRIMA2 MACHINE SUPPORT
+M: Barry Song <baohua.song@csr.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: arch/arm/mach-prima2/
+
ARM/EBSA110 MACHINE SUPPORT
M: Russell King <linux@arm.linux.org.uk>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
help
Support for the Cortina Systems Gemini family SoCs
+config ARCH_PRIMA2
+ bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
+ select CPU_V7
+ select GENERIC_TIME
+ select NO_IOPORT
+ select GENERIC_CLOCKEVENTS
+ select CLKDEV_LOOKUP
+ select GENERIC_IRQ_CHIP
+ select USE_OF
+ select ZONE_DMA
+ help
+ Support for CSR SiRFSoC ARM Cortex A9 Platform
+
config ARCH_EBSA110
bool "EBSA-110"
select CPU_SA110
select HAVE_PWM
help
Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
+
+config ARCH_ZYNQ
+ bool "Xilinx Zynq ARM Cortex A9 Platform"
+ select CPU_V7
+ select GENERIC_TIME
+ select GENERIC_CLOCKEVENTS
+ select CLKDEV_LOOKUP
+ select ARM_GIC
+ select ARM_AMBA
+ select ICST
+ select USE_OF
+ help
+ Support for Xilinx Zynq ARM Cortex A9 Platform
endchoice
#
machine-$(CONFIG_ARCH_OMAP4) := omap2
machine-$(CONFIG_ARCH_ORION5X) := orion5x
machine-$(CONFIG_ARCH_PNX4008) := pnx4008
+machine-$(CONFIG_ARCH_PRIMA2) := prima2
machine-$(CONFIG_ARCH_PXA) := pxa
machine-$(CONFIG_ARCH_REALVIEW) := realview
machine-$(CONFIG_ARCH_RPC) := rpc
machine-$(CONFIG_MACH_SPEAR310) := spear3xx
machine-$(CONFIG_MACH_SPEAR320) := spear3xx
machine-$(CONFIG_MACH_SPEAR600) := spear6xx
+machine-$(CONFIG_ARCH_ZYNQ) := zynq
# Platform directory name. This list is sorted alphanumerically
# by CONFIG_* macro name.
plat-$(CONFIG_ARCH_OMAP) := omap
plat-$(CONFIG_ARCH_S3C64XX) := samsung
plat-$(CONFIG_ARCH_TCC_926) := tcc
+plat-$(CONFIG_ARCH_ZYNQ) := versatile
plat-$(CONFIG_PLAT_IOP) := iop
plat-$(CONFIG_PLAT_NOMADIK) := nomadik
plat-$(CONFIG_PLAT_ORION) := orion
--- /dev/null
+/dts-v1/;
+/ {
+ model = "SiRF Prima2 eVB";
+ compatible = "sirf,prima2-cb", "sirf,prima2";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&intc>;
+
+ memory {
+ reg = <0x00000000 0x20000000>;
+ };
+
+ chosen {
+ bootargs = "mem=512M real_root=/dev/mmcblk0p2 console=ttyS0 panel=1 bootsplash=true bpp=16 androidboot.console=ttyS1";
+ linux,stdout-path = &uart1;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ reg = <0x0>;
+ d-cache-line-size = <32>;
+ i-cache-line-size = <32>;
+ d-cache-size = <32768>;
+ i-cache-size = <32768>;
+ /* from bootloader */
+ timebase-frequency = <0>;
+ bus-frequency = <0>;
+ clock-frequency = <0>;
+ };
+ };
+
+ axi {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x40000000 0x40000000 0x80000000>;
+
+ l2-cache-controller@80040000 {
+ compatible = "arm,pl310-cache";
+ reg = <0x80040000 0x1000>;
+ interrupts = <59>;
+ };
+
+ intc: interrupt-controller@80020000 {
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ compatible = "sirf,prima2-intc";
+ reg = <0x80020000 0x1000>;
+ };
+
+ sys-iobg {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x88000000 0x88000000 0x40000>;
+
+ clock-controller@88000000 {
+ compatible = "sirf,prima2-clkc";
+ reg = <0x88000000 0x1000>;
+ interrupts = <3>;
+ };
+
+ reset-controller@88010000 {
+ compatible = "sirf,prima2-rstc";
+ reg = <0x88010000 0x1000>;
+ };
+ };
+
+ mem-iobg {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x90000000 0x90000000 0x10000>;
+
+ memory-controller@90000000 {
+ compatible = "sirf,prima2-memc";
+ reg = <0x90000000 0x10000>;
+ interrupts = <27>;
+ };
+ };
+
+ disp-iobg {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x90010000 0x90010000 0x30000>;
+
+ display@90010000 {
+ compatible = "sirf,prima2-lcd";
+ reg = <0x90010000 0x20000>;
+ interrupts = <30>;
+ };
+
+ vpp@90020000 {
+ compatible = "sirf,prima2-vpp";
+ reg = <0x90020000 0x10000>;
+ interrupts = <31>;
+ };
+ };
+
+ graphics-iobg {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x98000000 0x98000000 0x8000000>;
+
+ graphics@98000000 {
+ compatible = "powervr,sgx531";
+ reg = <0x98000000 0x8000000>;
+ interrupts = <6>;
+ };
+ };
+
+ multimedia-iobg {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0xa0000000 0xa0000000 0x8000000>;
+
+ multimedia@a0000000 {
+ compatible = "sirf,prima2-video-codec";
+ reg = <0xa0000000 0x8000000>;
+ interrupts = <5>;
+ };
+ };
+
+ dsp-iobg {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0xa8000000 0xa8000000 0x2000000>;
+
+ dspif@a8000000 {
+ compatible = "sirf,prima2-dspif";
+ reg = <0xa8000000 0x10000>;
+ interrupts = <9>;
+ };
+
+ gps@a8010000 {
+ compatible = "sirf,prima2-gps";
+ reg = <0xa8010000 0x10000>;
+ interrupts = <7>;
+ };
+
+ dsp@a9000000 {
+ compatible = "sirf,prima2-dsp";
+ reg = <0xa9000000 0x1000000>;
+ interrupts = <8>;
+ };
+ };
+
+ peri-iobg {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0xb0000000 0xb0000000 0x180000>;
+
+ timer@b0020000 {
+ compatible = "sirf,prima2-tick";
+ reg = <0xb0020000 0x1000>;
+ interrupts = <0>;
+ };
+
+ nand@b0030000 {
+ compatible = "sirf,prima2-nand";
+ reg = <0xb0030000 0x10000>;
+ interrupts = <41>;
+ };
+
+ audio@b0040000 {
+ compatible = "sirf,prima2-audio";
+ reg = <0xb0040000 0x10000>;
+ interrupts = <35>;
+ };
+
+ uart0: uart@b0050000 {
+ cell-index = <0>;
+ compatible = "sirf,prima2-uart";
+ reg = <0xb0050000 0x10000>;
+ interrupts = <17>;
+ };
+
+ uart1: uart@b0060000 {
+ cell-index = <1>;
+ compatible = "sirf,prima2-uart";
+ reg = <0xb0060000 0x10000>;
+ interrupts = <18>;
+ };
+
+ uart2: uart@b0070000 {
+ cell-index = <2>;
+ compatible = "sirf,prima2-uart";
+ reg = <0xb0070000 0x10000>;
+ interrupts = <19>;
+ };
+
+ usp0: usp@b0080000 {
+ cell-index = <0>;
+ compatible = "sirf,prima2-usp";
+ reg = <0xb0080000 0x10000>;
+ interrupts = <20>;
+ };
+
+ usp1: usp@b0090000 {
+ cell-index = <1>;
+ compatible = "sirf,prima2-usp";
+ reg = <0xb0090000 0x10000>;
+ interrupts = <21>;
+ };
+
+ usp2: usp@b00a0000 {
+ cell-index = <2>;
+ compatible = "sirf,prima2-usp";
+ reg = <0xb00a0000 0x10000>;
+ interrupts = <22>;
+ };
+
+ dmac0: dma-controller@b00b0000 {
+ cell-index = <0>;
+ compatible = "sirf,prima2-dmac";
+ reg = <0xb00b0000 0x10000>;
+ interrupts = <12>;
+ };
+
+ dmac1: dma-controller@b0160000 {
+ cell-index = <1>;
+ compatible = "sirf,prima2-dmac";
+ reg = <0xb0160000 0x10000>;
+ interrupts = <13>;
+ };
+
+ vip@b00C0000 {
+ compatible = "sirf,prima2-vip";
+ reg = <0xb00C0000 0x10000>;
+ };
+
+ spi0: spi@b00d0000 {
+ cell-index = <0>;
+ compatible = "sirf,prima2-spi";
+ reg = <0xb00d0000 0x10000>;
+ interrupts = <15>;
+ };
+
+ spi1: spi@b0170000 {
+ cell-index = <1>;
+ compatible = "sirf,prima2-spi";
+ reg = <0xb0170000 0x10000>;
+ interrupts = <16>;
+ };
+
+ i2c0: i2c@b00e0000 {
+ cell-index = <0>;
+ compatible = "sirf,prima2-i2c";
+ reg = <0xb00e0000 0x10000>;
+ interrupts = <24>;
+ };
+
+ i2c1: i2c@b00f0000 {
+ cell-index = <1>;
+ compatible = "sirf,prima2-i2c";
+ reg = <0xb00f0000 0x10000>;
+ interrupts = <25>;
+ };
+
+ tsc@b0110000 {
+ compatible = "sirf,prima2-tsc";
+ reg = <0xb0110000 0x10000>;
+ interrupts = <33>;
+ };
+
+ gpio: gpio-controller@b0120000 {
+ #gpio-cells = <2>;
+ #interrupt-cells = <2>;
+ compatible = "sirf,prima2-gpio";
+ reg = <0xb0120000 0x10000>;
+ gpio-controller;
+ interrupt-controller;
+ };
+
+ pwm@b0130000 {
+ compatible = "sirf,prima2-pwm";
+ reg = <0xb0130000 0x10000>;
+ };
+
+ efusesys@b0140000 {
+ compatible = "sirf,prima2-efuse";
+ reg = <0xb0140000 0x10000>;
+ };
+
+ pulsec@b0150000 {
+ compatible = "sirf,prima2-pulsec";
+ reg = <0xb0150000 0x10000>;
+ interrupts = <48>;
+ };
+
+ pci-iobg {
+ compatible = "sirf,prima2-pciiobg", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x56000000 0x56000000 0x1b00000>;
+
+ sd0: sdhci@56000000 {
+ cell-index = <0>;
+ compatible = "sirf,prima2-sdhc";
+ reg = <0x56000000 0x100000>;
+ interrupts = <38>;
+ };
+
+ sd1: sdhci@56100000 {
+ cell-index = <1>;
+ compatible = "sirf,prima2-sdhc";
+ reg = <0x56100000 0x100000>;
+ interrupts = <38>;
+ };
+
+ sd2: sdhci@56200000 {
+ cell-index = <2>;
+ compatible = "sirf,prima2-sdhc";
+ reg = <0x56200000 0x100000>;
+ interrupts = <23>;
+ };
+
+ sd3: sdhci@56300000 {
+ cell-index = <3>;
+ compatible = "sirf,prima2-sdhc";
+ reg = <0x56300000 0x100000>;
+ interrupts = <23>;
+ };
+
+ sd4: sdhci@56400000 {
+ cell-index = <4>;
+ compatible = "sirf,prima2-sdhc";
+ reg = <0x56400000 0x100000>;
+ interrupts = <39>;
+ };
+
+ sd5: sdhci@56500000 {
+ cell-index = <5>;
+ compatible = "sirf,prima2-sdhc";
+ reg = <0x56500000 0x100000>;
+ interrupts = <39>;
+ };
+
+ pci-copy@57900000 {
+ compatible = "sirf,prima2-pcicp";
+ reg = <0x57900000 0x100000>;
+ interrupts = <40>;
+ };
+
+ rom-interface@57a00000 {
+ compatible = "sirf,prima2-romif";
+ reg = <0x57a00000 0x100000>;
+ };
+ };
+ };
+
+ rtc-iobg {
+ compatible = "sirf,prima2-rtciobg", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x80030000 0x10000>;
+
+ gpsrtc@1000 {
+ compatible = "sirf,prima2-gpsrtc";
+ reg = <0x1000 0x1000>;
+ interrupts = <55 56 57>;
+ };
+
+ sysrtc@2000 {
+ compatible = "sirf,prima2-sysrtc";
+ reg = <0x2000 0x1000>;
+ interrupts = <52 53 54>;
+ };
+
+ pwrc@3000 {
+ compatible = "sirf,prima2-pwrc";
+ reg = <0x3000 0x1000>;
+ interrupts = <32>;
+ };
+ };
+
+ uus-iobg {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0xb8000000 0xb8000000 0x40000>;
+
+ usb0: usb@b00e0000 {
+ compatible = "chipidea,ci13611a-prima2";
+ reg = <0xb8000000 0x10000>;
+ interrupts = <10>;
+ };
+
+ usb1: usb@b00f0000 {
+ compatible = "chipidea,ci13611a-prima2";
+ reg = <0xb8010000 0x10000>;
+ interrupts = <11>;
+ };
+
+ sata@b00f0000 {
+ compatible = "synopsys,dwc-ahsata";
+ reg = <0xb8020000 0x10000>;
+ interrupts = <37>;
+ };
+
+ security@b00f0000 {
+ compatible = "sirf,prima2-security";
+ reg = <0xb8030000 0x10000>;
+ interrupts = <42>;
+ };
+ };
+ };
+};
--- /dev/null
+/*
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+/dts-v1/;
+/ {
+ model = "Xilinx Zynq EP107";
+ compatible = "xlnx,zynq-ep107";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&intc>;
+
+ memory {
+ device_type = "memory";
+ reg = <0x0 0x10000000>;
+ };
+
+ chosen {
+ bootargs = "console=ttyPS0,9600 root=/dev/ram rw initrd=0x800000,8M earlyprintk";
+ linux,stdout-path = &uart0;
+ };
+
+ amba {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ intc: interrupt-controller@f8f01000 {
+ interrupt-controller;
+ compatible = "arm,gic";
+ reg = <0xF8F01000 0x1000>;
+ #interrupt-cells = <2>;
+ };
+
+ uart0: uart@e0000000 {
+ compatible = "xlnx,xuartps";
+ reg = <0xE0000000 0x1000>;
+ interrupts = <59 0>;
+ clock = <50000000>;
+ };
+ };
+};
.recalc = &followparent_recalc,
};
+static const struct clksel_rate div3_8to32_rates[] = {
+ { .div = 8, .val = 0, .flags = RATE_IN_44XX },
+ { .div = 16, .val = 1, .flags = RATE_IN_44XX },
+ { .div = 32, .val = 2, .flags = RATE_IN_44XX },
+ { .div = 0 },
+};
+
+static const struct clksel div_ts_div[] = {
+ { .parent = &l4_wkup_clk_mux_ck, .rates = div3_8to32_rates },
+ { .parent = NULL },
+};
+
+static struct clk div_ts_ck = {
+ .name = "div_ts_ck",
+ .parent = &l4_wkup_clk_mux_ck,
+ .clksel = div_ts_div,
+ .clksel_reg = OMAP4430_CM_WKUP_BANDGAP_CLKCTRL,
+ .clksel_mask = OMAP4430_CLKSEL_24_25_MASK,
+ .ops = &clkops_null,
+ .recalc = &omap2_clksel_recalc,
+ .round_rate = &omap2_clksel_round_rate,
+ .set_rate = &omap2_clksel_set_rate,
+};
+
+static struct clk bandgap_ts_fclk = {
+ .name = "bandgap_ts_fclk",
+ .ops = &clkops_omap2_dflt,
+ .enable_reg = OMAP4430_CM_WKUP_BANDGAP_CLKCTRL,
+ .enable_bit = OMAP4460_OPTFCLKEN_TS_FCLK_SHIFT,
+ .clkdm_name = "l4_wkup_clkdm",
+ .parent = &div_ts_ck,
+ .recalc = &followparent_recalc,
+};
+
static struct clk dss_48mhz_clk = {
.name = "dss_48mhz_clk",
.ops = &clkops_omap2_dflt,
CLK(NULL, "aes2_fck", &aes2_fck, CK_443X),
CLK(NULL, "aess_fck", &aess_fck, CK_443X),
CLK(NULL, "bandgap_fclk", &bandgap_fclk, CK_443X),
+ CLK(NULL, "bandgap_ts_fclk", &bandgap_ts_fclk, CK_446X),
CLK(NULL, "des3des_fck", &des3des_fck, CK_443X),
+ CLK(NULL, "div_ts_ck", &div_ts_ck, CK_446X),
CLK(NULL, "dmic_sync_mux_ck", &dmic_sync_mux_ck, CK_443X),
CLK(NULL, "dmic_fck", &dmic_fck, CK_443X),
CLK(NULL, "dsp_fck", &dsp_fck, CK_443X),
if (cpu_is_omap44xx()) {
cpu_mask = RATE_IN_4430;
cpu_clkflg = CK_443X;
+ } else if (cpu_is_omap446x()) {
+ cpu_mask = RATE_IN_4460;
+ cpu_clkflg = CK_446X;
}
clk_init(&omap2_clk_functions);
#define OMAP4430_CLKACTIVITY_CORE_DPLL_EMU_CLK_SHIFT 9
#define OMAP4430_CLKACTIVITY_CORE_DPLL_EMU_CLK_MASK (1 << 9)
+/* Used by CM_L4CFG_CLKSTCTRL */
+#define OMAP4460_CLKACTIVITY_CORE_TS_GFCLK_SHIFT 9
+#define OMAP4460_CLKACTIVITY_CORE_TS_GFCLK_MASK (1 << 9)
+
/* Used by CM_CEFUSE_CLKSTCTRL */
#define OMAP4430_CLKACTIVITY_CUST_EFUSE_SYS_CLK_SHIFT 9
#define OMAP4430_CLKACTIVITY_CUST_EFUSE_SYS_CLK_MASK (1 << 9)
#define OMAP4430_CLKACTIVITY_WKUP_32K_GFCLK_SHIFT 11
#define OMAP4430_CLKACTIVITY_WKUP_32K_GFCLK_MASK (1 << 11)
+/* Used by CM_WKUP_CLKSTCTRL */
+#define OMAP4460_CLKACTIVITY_WKUP_TS_GFCLK_SHIFT 13
+#define OMAP4460_CLKACTIVITY_WKUP_TS_GFCLK_MASK (1 << 13)
+
/*
* Used by CM1_ABE_TIMER5_CLKCTRL, CM1_ABE_TIMER6_CLKCTRL,
* CM1_ABE_TIMER7_CLKCTRL, CM1_ABE_TIMER8_CLKCTRL, CM_L3INIT_MMC1_CLKCTRL,
#define OMAP4430_CLKSEL_60M_SHIFT 24
#define OMAP4430_CLKSEL_60M_MASK (1 << 24)
+/* Used by CM_MPU_MPU_CLKCTRL */
+#define OMAP4460_CLKSEL_ABE_DIV_MODE_SHIFT 25
+#define OMAP4460_CLKSEL_ABE_DIV_MODE_MASK (1 << 25)
+
/* Used by CM1_ABE_AESS_CLKCTRL */
#define OMAP4430_CLKSEL_AESS_FCLK_SHIFT 24
#define OMAP4430_CLKSEL_AESS_FCLK_MASK (1 << 24)
#define OMAP4430_CLKSEL_DIV_SHIFT 24
#define OMAP4430_CLKSEL_DIV_MASK (1 << 24)
+/* Used by CM_MPU_MPU_CLKCTRL */
+#define OMAP4460_CLKSEL_EMIF_DIV_MODE_SHIFT 24
+#define OMAP4460_CLKSEL_EMIF_DIV_MODE_MASK (1 << 24)
+
/* Used by CM_CAM_FDIF_CLKCTRL */
#define OMAP4430_CLKSEL_FCLK_SHIFT 24
#define OMAP4430_CLKSEL_FCLK_MASK (0x3 << 24)
#define OMAP4430_D2D_STATDEP_SHIFT 18
#define OMAP4430_D2D_STATDEP_MASK (1 << 18)
+/* Used by CM_CLKSEL_DPLL_MPU */
+#define OMAP4460_DCC_COUNT_MAX_SHIFT 24
+#define OMAP4460_DCC_COUNT_MAX_MASK (0xff << 24)
+
+/* Used by CM_CLKSEL_DPLL_MPU */
+#define OMAP4460_DCC_EN_SHIFT 22
+#define OMAP4460_DCC_EN_MASK (1 << 22)
+
/*
* Used by CM_SSC_DELTAMSTEP_DPLL_ABE, CM_SSC_DELTAMSTEP_DPLL_CORE,
* CM_SSC_DELTAMSTEP_DPLL_DDRPHY, CM_SSC_DELTAMSTEP_DPLL_IVA,
#define OMAP4430_DELTAMSTEP_SHIFT 0
#define OMAP4430_DELTAMSTEP_MASK (0xfffff << 0)
+/* Renamed from DELTAMSTEP Used by CM_SSC_DELTAMSTEP_DPLL_USB */
+#define OMAP4460_DELTAMSTEP_0_20_SHIFT 0
+#define OMAP4460_DELTAMSTEP_0_20_MASK (0x1fffff << 0)
+
/* Used by CM_DLL_CTRL */
#define OMAP4430_DLL_OVERRIDE_SHIFT 0
#define OMAP4430_DLL_OVERRIDE_MASK (1 << 0)
#define OMAP4430_MODULEMODE_SHIFT 0
#define OMAP4430_MODULEMODE_MASK (0x3 << 0)
+/* Used by CM_L4CFG_DYNAMICDEP */
+#define OMAP4460_MPU_DYNDEP_SHIFT 19
+#define OMAP4460_MPU_DYNDEP_MASK (1 << 19)
+
/* Used by CM_DSS_DSS_CLKCTRL */
#define OMAP4430_OPTFCLKEN_48MHZ_CLK_SHIFT 9
#define OMAP4430_OPTFCLKEN_48MHZ_CLK_MASK (1 << 9)
#define OMAP4430_OPTFCLKEN_SYS_CLK_SHIFT 10
#define OMAP4430_OPTFCLKEN_SYS_CLK_MASK (1 << 10)
+/* Used by CM_WKUP_BANDGAP_CLKCTRL */
+#define OMAP4460_OPTFCLKEN_TS_FCLK_SHIFT 8
+#define OMAP4460_OPTFCLKEN_TS_FCLK_MASK (1 << 8)
+
/* Used by CM_DSS_DSS_CLKCTRL */
#define OMAP4430_OPTFCLKEN_TV_CLK_SHIFT 11
#define OMAP4430_OPTFCLKEN_TV_CLK_MASK (1 << 11)
static struct omap_chip_id omap_chip;
static unsigned int omap_revision;
-u32 omap3_features;
+u32 omap_features;
unsigned int omap_rev(void)
{
#define OMAP3_CHECK_FEATURE(status,feat) \
if (((status & OMAP3_ ##feat## _MASK) \
>> OMAP3_ ##feat## _SHIFT) != FEAT_ ##feat## _NONE) { \
- omap3_features |= OMAP3_HAS_ ##feat; \
+ omap_features |= OMAP3_HAS_ ##feat; \
}
static void __init omap3_check_features(void)
{
u32 status;
- omap3_features = 0;
+ omap_features = 0;
status = omap_ctrl_readl(OMAP3_CONTROL_OMAP_STATUS);
OMAP3_CHECK_FEATURE(status, NEON);
OMAP3_CHECK_FEATURE(status, ISP);
if (cpu_is_omap3630())
- omap3_features |= OMAP3_HAS_192MHZ_CLK;
+ omap_features |= OMAP3_HAS_192MHZ_CLK;
if (!cpu_is_omap3505() && !cpu_is_omap3517())
- omap3_features |= OMAP3_HAS_IO_WAKEUP;
+ omap_features |= OMAP3_HAS_IO_WAKEUP;
- omap3_features |= OMAP3_HAS_SDRC;
+ omap_features |= OMAP3_HAS_SDRC;
/*
* TODO: Get additional info (where applicable)
*/
}
+static void __init omap4_check_features(void)
+{
+ u32 si_type;
+
+ if (cpu_is_omap443x())
+ omap_features |= OMAP4_HAS_MPU_1GHZ;
+
+
+ if (cpu_is_omap446x()) {
+ si_type =
+ read_tap_reg(OMAP4_CTRL_MODULE_CORE_STD_FUSE_PROD_ID_1);
+ switch ((si_type & (3 << 16)) >> 16) {
+ case 2:
+ /* High performance device */
+ omap_features |= OMAP4_HAS_MPU_1_5GHZ;
+ break;
+ case 1:
+ default:
+ /* Standard device */
+ omap_features |= OMAP4_HAS_MPU_1_2GHZ;
+ break;
+ }
+ }
+}
+
static void __init ti816x_check_features(void)
{
- omap3_features = OMAP3_HAS_NEON;
+ omap_features = OMAP3_HAS_NEON;
}
static void __init omap3_check_revision(void)
rev = (idcode >> 28) & 0xf;
/*
- * Few initial ES2.0 samples IDCODE is same as ES1.0
+ * Few initial 4430 ES2.0 samples IDCODE is same as ES1.0
* Use ARM register to detect the correct ES version
*/
- if (!rev) {
+ if (!rev && (hawkeye != 0xb94e)) {
idcode = read_cpuid(CPUID_ID);
rev = (idcode & 0xf) - 1;
}
omap_chip.oc |= CHIP_IS_OMAP4430ES2_2;
}
break;
+ case 0xb94e:
+ switch (rev) {
+ case 0:
+ default:
+ omap_revision = OMAP4460_REV_ES1_0;
+ omap_chip.oc |= CHIP_IS_OMAP4460ES1_0;
+ break;
+ }
+ break;
default:
/* Unknown default to latest silicon rev as default */
omap_revision = OMAP4430_REV_ES2_2;
return;
} else if (cpu_is_omap44xx()) {
omap4_check_revision();
+ omap4_check_features();
return;
} else {
pr_err("OMAP revision unknown, please fix!\n");
#define OMAP4430_DUCATI_UNICACHE_STATEST_SHIFT 10
#define OMAP4430_DUCATI_UNICACHE_STATEST_MASK (0x3 << 10)
+/* Used by PRM_DEVICE_OFF_CTRL */
+#define OMAP4460_EMIF1_OFFWKUP_DISABLE_SHIFT 8
+#define OMAP4460_EMIF1_OFFWKUP_DISABLE_MASK (1 << 8)
+
+/* Used by PRM_DEVICE_OFF_CTRL */
+#define OMAP4460_EMIF2_OFFWKUP_DISABLE_SHIFT 9
+#define OMAP4460_EMIF2_OFFWKUP_DISABLE_MASK (1 << 9)
+
/* Used by RM_MPU_RSTST */
#define OMAP4430_EMULATION_RST_SHIFT 0
#define OMAP4430_EMULATION_RST_MASK (1 << 0)
--- /dev/null
+obj-y := timer.o
+obj-y += irq.o
+obj-y += clock.o
+obj-y += rstc.o
+obj-y += prima2.o
+obj-$(CONFIG_DEBUG_LL) += lluart.o
+obj-$(CONFIG_CACHE_L2X0) += l2x0.o
--- /dev/null
+zreladdr-y := 0x00008000
+params_phys-y := 0x00000100
+initrd_phys-y := 0x00800000
--- /dev/null
+/*
+ * Clock tree for CSR SiRFprimaII
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/clkdev.h>
+#include <linux/clk.h>
+#include <linux/spinlock.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <asm/mach/map.h>
+#include <mach/map.h>
+
+#define SIRFSOC_CLKC_CLK_EN0 0x0000
+#define SIRFSOC_CLKC_CLK_EN1 0x0004
+#define SIRFSOC_CLKC_REF_CFG 0x0014
+#define SIRFSOC_CLKC_CPU_CFG 0x0018
+#define SIRFSOC_CLKC_MEM_CFG 0x001c
+#define SIRFSOC_CLKC_SYS_CFG 0x0020
+#define SIRFSOC_CLKC_IO_CFG 0x0024
+#define SIRFSOC_CLKC_DSP_CFG 0x0028
+#define SIRFSOC_CLKC_GFX_CFG 0x002c
+#define SIRFSOC_CLKC_MM_CFG 0x0030
+#define SIRFSOC_LKC_LCD_CFG 0x0034
+#define SIRFSOC_CLKC_MMC_CFG 0x0038
+#define SIRFSOC_CLKC_PLL1_CFG0 0x0040
+#define SIRFSOC_CLKC_PLL2_CFG0 0x0044
+#define SIRFSOC_CLKC_PLL3_CFG0 0x0048
+#define SIRFSOC_CLKC_PLL1_CFG1 0x004c
+#define SIRFSOC_CLKC_PLL2_CFG1 0x0050
+#define SIRFSOC_CLKC_PLL3_CFG1 0x0054
+#define SIRFSOC_CLKC_PLL1_CFG2 0x0058
+#define SIRFSOC_CLKC_PLL2_CFG2 0x005c
+#define SIRFSOC_CLKC_PLL3_CFG2 0x0060
+
+#define SIRFSOC_CLOCK_VA_BASE SIRFSOC_VA(0x005000)
+
+#define KHZ 1000
+#define MHZ (KHZ * KHZ)
+
+struct clk_ops {
+ unsigned long (*get_rate)(struct clk *clk);
+ long (*round_rate)(struct clk *clk, unsigned long rate);
+ int (*set_rate)(struct clk *clk, unsigned long rate);
+ int (*enable)(struct clk *clk);
+ int (*disable)(struct clk *clk);
+ struct clk *(*get_parent)(struct clk *clk);
+ int (*set_parent)(struct clk *clk, struct clk *parent);
+};
+
+struct clk {
+ struct clk *parent; /* parent clk */
+ unsigned long rate; /* clock rate in Hz */
+ signed char usage; /* clock enable count */
+ signed char enable_bit; /* enable bit: 0 ~ 63 */
+ unsigned short regofs; /* register offset */
+ struct clk_ops *ops; /* clock operation */
+};
+
+static DEFINE_SPINLOCK(clocks_lock);
+
+static inline unsigned long clkc_readl(unsigned reg)
+{
+ return readl(SIRFSOC_CLOCK_VA_BASE + reg);
+}
+
+static inline void clkc_writel(u32 val, unsigned reg)
+{
+ writel(val, SIRFSOC_CLOCK_VA_BASE + reg);
+}
+
+/*
+ * osc_rtc - real time oscillator - 32.768KHz
+ * osc_sys - high speed oscillator - 26MHz
+ */
+
+static struct clk clk_rtc = {
+ .rate = 32768,
+};
+
+static struct clk clk_osc = {
+ .rate = 26 * MHZ,
+};
+
+/*
+ * std pll
+ */
+static unsigned long std_pll_get_rate(struct clk *clk)
+{
+ unsigned long fin = clk_get_rate(clk->parent);
+ u32 regcfg2 = clk->regofs + SIRFSOC_CLKC_PLL1_CFG2 -
+ SIRFSOC_CLKC_PLL1_CFG0;
+
+ if (clkc_readl(regcfg2) & BIT(2)) {
+ /* pll bypass mode */
+ clk->rate = fin;
+ } else {
+ /* fout = fin * nf / nr / od */
+ u32 cfg0 = clkc_readl(clk->regofs);
+ u32 nf = (cfg0 & (BIT(13) - 1)) + 1;
+ u32 nr = ((cfg0 >> 13) & (BIT(6) - 1)) + 1;
+ u32 od = ((cfg0 >> 19) & (BIT(4) - 1)) + 1;
+ WARN_ON(fin % MHZ);
+ clk->rate = fin / MHZ * nf / nr / od * MHZ;
+ }
+
+ return clk->rate;
+}
+
+static int std_pll_set_rate(struct clk *clk, unsigned long rate)
+{
+ unsigned long fin, nf, nr, od, reg;
+
+ /*
+ * fout = fin * nf / (nr * od);
+ * set od = 1, nr = fin/MHz, so fout = nf * MHz
+ */
+
+ nf = rate / MHZ;
+ if (unlikely((rate % MHZ) || nf > BIT(13) || nf < 1))
+ return -EINVAL;
+
+ fin = clk_get_rate(clk->parent);
+ BUG_ON(fin < MHZ);
+
+ nr = fin / MHZ;
+ BUG_ON((fin % MHZ) || nr > BIT(6));
+
+ od = 1;
+
+ reg = (nf - 1) | ((nr - 1) << 13) | ((od - 1) << 19);
+ clkc_writel(reg, clk->regofs);
+
+ reg = clk->regofs + SIRFSOC_CLKC_PLL1_CFG1 - SIRFSOC_CLKC_PLL1_CFG0;
+ clkc_writel((nf >> 1) - 1, reg);
+
+ reg = clk->regofs + SIRFSOC_CLKC_PLL1_CFG2 - SIRFSOC_CLKC_PLL1_CFG0;
+ while (!(clkc_readl(reg) & BIT(6)))
+ cpu_relax();
+
+ clk->rate = 0; /* set to zero will force recalculation */
+ return 0;
+}
+
+static struct clk_ops std_pll_ops = {
+ .get_rate = std_pll_get_rate,
+ .set_rate = std_pll_set_rate,
+};
+
+static struct clk clk_pll1 = {
+ .parent = &clk_osc,
+ .regofs = SIRFSOC_CLKC_PLL1_CFG0,
+ .ops = &std_pll_ops,
+};
+
+static struct clk clk_pll2 = {
+ .parent = &clk_osc,
+ .regofs = SIRFSOC_CLKC_PLL2_CFG0,
+ .ops = &std_pll_ops,
+};
+
+static struct clk clk_pll3 = {
+ .parent = &clk_osc,
+ .regofs = SIRFSOC_CLKC_PLL3_CFG0,
+ .ops = &std_pll_ops,
+};
+
+/*
+ * clock domains - cpu, mem, sys/io
+ */
+
+static struct clk clk_mem;
+
+static struct clk *dmn_get_parent(struct clk *clk)
+{
+ struct clk *clks[] = {
+ &clk_osc, &clk_rtc, &clk_pll1, &clk_pll2, &clk_pll3
+ };
+ u32 cfg = clkc_readl(clk->regofs);
+ WARN_ON((cfg & (BIT(3) - 1)) > 4);
+ return clks[cfg & (BIT(3) - 1)];
+}
+
+static int dmn_set_parent(struct clk *clk, struct clk *parent)
+{
+ const struct clk *clks[] = {
+ &clk_osc, &clk_rtc, &clk_pll1, &clk_pll2, &clk_pll3
+ };
+ u32 cfg = clkc_readl(clk->regofs);
+ int i;
+ for (i = 0; i < ARRAY_SIZE(clks); i++) {
+ if (clks[i] == parent) {
+ cfg &= ~(BIT(3) - 1);
+ clkc_writel(cfg | i, clk->regofs);
+ /* BIT(3) - switching status: 1 - busy, 0 - done */
+ while (clkc_readl(clk->regofs) & BIT(3))
+ cpu_relax();
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+
+static unsigned long dmn_get_rate(struct clk *clk)
+{
+ unsigned long fin = clk_get_rate(clk->parent);
+ u32 cfg = clkc_readl(clk->regofs);
+ if (cfg & BIT(24)) {
+ /* fcd bypass mode */
+ clk->rate = fin;
+ } else {
+ /*
+ * wait count: bit[19:16], hold count: bit[23:20]
+ */
+ u32 wait = (cfg >> 16) & (BIT(4) - 1);
+ u32 hold = (cfg >> 20) & (BIT(4) - 1);
+
+ clk->rate = fin / (wait + hold + 2);
+ }
+
+ return clk->rate;
+}
+
+static int dmn_set_rate(struct clk *clk, unsigned long rate)
+{
+ unsigned long fin;
+ unsigned ratio, wait, hold, reg;
+ unsigned bits = (clk == &clk_mem) ? 3 : 4;
+
+ fin = clk_get_rate(clk->parent);
+ ratio = fin / rate;
+
+ if (unlikely(ratio < 2 || ratio > BIT(bits + 1)))
+ return -EINVAL;
+
+ WARN_ON(fin % rate);
+
+ wait = (ratio >> 1) - 1;
+ hold = ratio - wait - 2;
+
+ reg = clkc_readl(clk->regofs);
+ reg &= ~(((BIT(bits) - 1) << 16) | ((BIT(bits) - 1) << 20));
+ reg |= (wait << 16) | (hold << 20) | BIT(25);
+ clkc_writel(reg, clk->regofs);
+
+ /* waiting FCD been effective */
+ while (clkc_readl(clk->regofs) & BIT(25))
+ cpu_relax();
+
+ clk->rate = 0; /* set to zero will force recalculation */
+
+ return 0;
+}
+
+/*
+ * cpu clock has no FCD register in Prima2, can only change pll
+ */
+static int cpu_set_rate(struct clk *clk, unsigned long rate)
+{
+ int ret1, ret2;
+ struct clk *cur_parent, *tmp_parent;
+
+ cur_parent = dmn_get_parent(clk);
+ BUG_ON(cur_parent == NULL || cur_parent->usage > 1);
+
+ /* switch to tmp pll before setting parent clock's rate */
+ tmp_parent = cur_parent == &clk_pll1 ? &clk_pll2 : &clk_pll1;
+ ret1 = dmn_set_parent(clk, tmp_parent);
+ BUG_ON(ret1);
+
+ ret2 = clk_set_rate(cur_parent, rate);
+
+ ret1 = dmn_set_parent(clk, cur_parent);
+
+ clk->rate = 0; /* set to zero will force recalculation */
+
+ return ret2 ? ret2 : ret1;
+}
+
+static struct clk_ops cpu_ops = {
+ .get_parent = dmn_get_parent,
+ .set_parent = dmn_set_parent,
+ .set_rate = cpu_set_rate,
+};
+
+static struct clk clk_cpu = {
+ .parent = &clk_pll1,
+ .regofs = SIRFSOC_CLKC_CPU_CFG,
+ .ops = &cpu_ops,
+};
+
+
+static struct clk_ops msi_ops = {
+ .set_rate = dmn_set_rate,
+ .get_rate = dmn_get_rate,
+ .set_parent = dmn_set_parent,
+ .get_parent = dmn_get_parent,
+};
+
+static struct clk clk_mem = {
+ .parent = &clk_pll2,
+ .regofs = SIRFSOC_CLKC_MEM_CFG,
+ .ops = &msi_ops,
+};
+
+static struct clk clk_sys = {
+ .parent = &clk_pll3,
+ .regofs = SIRFSOC_CLKC_SYS_CFG,
+ .ops = &msi_ops,
+};
+
+static struct clk clk_io = {
+ .parent = &clk_pll3,
+ .regofs = SIRFSOC_CLKC_IO_CFG,
+ .ops = &msi_ops,
+};
+
+/*
+ * on-chip clock sets
+ */
+static struct clk_lookup onchip_clks[] = {
+ {
+ .dev_id = "rtc",
+ .clk = &clk_rtc,
+ }, {
+ .dev_id = "osc",
+ .clk = &clk_osc,
+ }, {
+ .dev_id = "pll1",
+ .clk = &clk_pll1,
+ }, {
+ .dev_id = "pll2",
+ .clk = &clk_pll2,
+ }, {
+ .dev_id = "pll3",
+ .clk = &clk_pll3,
+ }, {
+ .dev_id = "cpu",
+ .clk = &clk_cpu,
+ }, {
+ .dev_id = "mem",
+ .clk = &clk_mem,
+ }, {
+ .dev_id = "sys",
+ .clk = &clk_sys,
+ }, {
+ .dev_id = "io",
+ .clk = &clk_io,
+ },
+};
+
+int clk_enable(struct clk *clk)
+{
+ unsigned long flags;
+
+ if (unlikely(IS_ERR_OR_NULL(clk)))
+ return -EINVAL;
+
+ if (clk->parent)
+ clk_enable(clk->parent);
+
+ spin_lock_irqsave(&clocks_lock, flags);
+ if (!clk->usage++ && clk->ops && clk->ops->enable)
+ clk->ops->enable(clk);
+ spin_unlock_irqrestore(&clocks_lock, flags);
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+ unsigned long flags;
+
+ if (unlikely(IS_ERR_OR_NULL(clk)))
+ return;
+
+ WARN_ON(!clk->usage);
+
+ spin_lock_irqsave(&clocks_lock, flags);
+ if (--clk->usage == 0 && clk->ops && clk->ops->disable)
+ clk->ops->disable(clk);
+ spin_unlock_irqrestore(&clocks_lock, flags);
+
+ if (clk->parent)
+ clk_disable(clk->parent);
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+ if (unlikely(IS_ERR_OR_NULL(clk)))
+ return 0;
+
+ if (clk->rate)
+ return clk->rate;
+
+ if (clk->ops && clk->ops->get_rate)
+ return clk->ops->get_rate(clk);
+
+ return clk_get_rate(clk->parent);
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+ if (unlikely(IS_ERR_OR_NULL(clk)))
+ return 0;
+
+ if (clk->ops && clk->ops->round_rate)
+ return clk->ops->round_rate(clk, rate);
+
+ return 0;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+ if (unlikely(IS_ERR_OR_NULL(clk)))
+ return -EINVAL;
+
+ if (!clk->ops || !clk->ops->set_rate)
+ return -EINVAL;
+
+ return clk->ops->set_rate(clk, rate);
+}
+EXPORT_SYMBOL(clk_set_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ int ret;
+ unsigned long flags;
+
+ if (unlikely(IS_ERR_OR_NULL(clk)))
+ return -EINVAL;
+
+ if (!clk->ops || !clk->ops->set_parent)
+ return -EINVAL;
+
+ spin_lock_irqsave(&clocks_lock, flags);
+ ret = clk->ops->set_parent(clk, parent);
+ if (!ret) {
+ parent->usage += clk->usage;
+ clk->parent->usage -= clk->usage;
+ BUG_ON(clk->parent->usage < 0);
+ clk->parent = parent;
+ }
+ spin_unlock_irqrestore(&clocks_lock, flags);
+ return ret;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+ unsigned long flags;
+
+ if (unlikely(IS_ERR_OR_NULL(clk)))
+ return NULL;
+
+ if (!clk->ops || !clk->ops->get_parent)
+ return clk->parent;
+
+ spin_lock_irqsave(&clocks_lock, flags);
+ clk->parent = clk->ops->get_parent(clk);
+ spin_unlock_irqrestore(&clocks_lock, flags);
+ return clk->parent;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
+static void __init sirfsoc_clk_init(void)
+{
+ clkdev_add_table(onchip_clks, ARRAY_SIZE(onchip_clks));
+}
+
+static struct of_device_id clkc_ids[] = {
+ { .compatible = "sirf,prima2-clkc" },
+};
+
+void __init sirfsoc_of_clk_init(void)
+{
+ struct device_node *np;
+ struct resource res;
+ struct map_desc sirfsoc_clkc_iodesc = {
+ .virtual = SIRFSOC_CLOCK_VA_BASE,
+ .type = MT_DEVICE,
+ };
+
+ np = of_find_matching_node(NULL, clkc_ids);
+ if (!np)
+ panic("unable to find compatible clkc node in dtb\n");
+
+ if (of_address_to_resource(np, 0, &res))
+ panic("unable to find clkc range in dtb");
+ of_node_put(np);
+
+ sirfsoc_clkc_iodesc.pfn = __phys_to_pfn(res.start);
+ sirfsoc_clkc_iodesc.length = 1 + res.end - res.start;
+
+ iotable_init(&sirfsoc_clkc_iodesc, 1);
+
+ sirfsoc_clk_init();
+}
--- /dev/null
+/*
+ * This file contains common function prototypes to avoid externs in the c files.
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __MACH_PRIMA2_COMMON_H__
+#define __MACH_PRIMA2_COMMON_H__
+
+#include <linux/init.h>
+#include <asm/mach/time.h>
+
+extern struct sys_timer sirfsoc_timer;
+
+extern void __init sirfsoc_of_irq_init(void);
+extern void __init sirfsoc_of_clk_init(void);
+
+#ifndef CONFIG_DEBUG_LL
+static inline void sirfsoc_map_lluart(void) {}
+#else
+extern void __init sirfsoc_map_lluart(void);
+#endif
+
+#endif
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/clkdev.h
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __MACH_CLKDEV_H
+#define __MACH_CLKDEV_H
+
+#define __clk_get(clk) ({ 1; })
+#define __clk_put(clk) do { } while (0)
+
+#endif
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/debug-macro.S
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <mach/hardware.h>
+#include <mach/uart.h>
+
+ .macro addruart, rp, rv
+ ldr \rp, =SIRFSOC_UART1_PA_BASE @ physical
+ ldr \rv, =SIRFSOC_UART1_VA_BASE @ virtual
+ .endm
+
+ .macro senduart,rd,rx
+ str \rd, [\rx, #SIRFSOC_UART_TXFIFO_DATA]
+ .endm
+
+ .macro busyuart,rd,rx
+ .endm
+
+ .macro waituart,rd,rx
+1001: ldr \rd, [\rx, #SIRFSOC_UART_TXFIFO_STATUS]
+ tst \rd, #SIRFSOC_UART1_TXFIFO_EMPTY
+ beq 1001b
+ .endm
+
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/entry-macro.S
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <mach/hardware.h>
+
+#define SIRFSOC_INT_ID 0x38
+
+ .macro get_irqnr_preamble, base, tmp
+ ldr \base, =sirfsoc_intc_base
+ ldr \base, [\base]
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+ ldr \irqnr, [\base, #SIRFSOC_INT_ID] @ Get the highest priority irq
+ cmp \irqnr, #0x40 @ the irq num can't be larger than 0x3f
+ movges \irqnr, #0
+ .endm
+
+ .macro disable_fiq
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/hardware.h
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __MACH_HARDWARE_H__
+#define __MACH_HARDWARE_H__
+
+#include <asm/sizes.h>
+#include <mach/map.h>
+
+#endif
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/io.h
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __MACH_PRIMA2_IO_H
+#define __MACH_PRIMA2_IO_H
+
+#define IO_SPACE_LIMIT ((resource_size_t)0)
+
+#define __mem_pci(a) (a)
+
+#endif
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/irqs.h
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __ASM_ARCH_IRQS_H
+#define __ASM_ARCH_IRQS_H
+
+#define SIRFSOC_INTENAL_IRQ_START 0
+#define SIRFSOC_INTENAL_IRQ_END 59
+
+#define NR_IRQS 220
+
+#endif
--- /dev/null
+/*
+ * memory & I/O static mapping definitions for CSR SiRFprimaII
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __MACH_PRIMA2_MAP_H__
+#define __MACH_PRIMA2_MAP_H__
+
+#include <mach/vmalloc.h>
+
+#define SIRFSOC_VA(x) (VMALLOC_END + ((x) & 0x00FFF000))
+
+#endif
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/memory.h
+ *
+ * Copyright (c) 2010 – 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#define PLAT_PHYS_OFFSET UL(0x00000000)
+
+/*
+ * Restrict DMA-able region to workaround silicon limitation.
+ * The limitation restricts buffers available for DMA to SD/MMC
+ * hardware to be below 256MB
+ */
+#define ARM_DMA_ZONE_SIZE (SZ_256M)
+
+#endif
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/system.h
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __MACH_SYSTEM_H__
+#define __MACH_SYSTEM_H__
+
+#include <linux/bitops.h>
+#include <mach/hardware.h>
+
+#define SIRFSOC_SYS_RST_BIT BIT(31)
+
+extern void __iomem *sirfsoc_rstc_base;
+
+static inline void arch_idle(void)
+{
+ cpu_do_idle();
+}
+
+static inline void arch_reset(char mode, const char *cmd)
+{
+ writel(SIRFSOC_SYS_RST_BIT, sirfsoc_rstc_base);
+}
+
+#endif
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/timex.h
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __MACH_TIMEX_H__
+#define __MACH_TIMEX_H__
+
+#define CLOCK_TICK_RATE 1000000
+
+#endif
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/uart.h
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __MACH_PRIMA2_SIRFSOC_UART_H
+#define __MACH_PRIMA2_SIRFSOC_UART_H
+
+/* UART-1: used as serial debug port */
+#define SIRFSOC_UART1_PA_BASE 0xb0060000
+#define SIRFSOC_UART1_VA_BASE SIRFSOC_VA(0x060000)
+#define SIRFSOC_UART1_SIZE SZ_4K
+
+#define SIRFSOC_UART_TXFIFO_STATUS 0x0114
+#define SIRFSOC_UART_TXFIFO_DATA 0x0118
+
+#define SIRFSOC_UART1_TXFIFO_FULL (1 << 5)
+#define SIRFSOC_UART1_TXFIFO_EMPTY (1 << 6)
+
+#endif
--- /dev/null
+/*
+ * arch/arm/mach-prima2/include/mach/uncompress.h
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __ASM_ARCH_UNCOMPRESS_H
+#define __ASM_ARCH_UNCOMPRESS_H
+
+#include <linux/io.h>
+#include <mach/hardware.h>
+#include <mach/uart.h>
+
+void arch_decomp_setup(void)
+{
+}
+
+#define arch_decomp_wdog()
+
+static __inline__ void putc(char c)
+{
+ /*
+ * during kernel decompression, all mappings are flat:
+ * virt_addr == phys_addr
+ */
+ while (__raw_readl(SIRFSOC_UART1_PA_BASE + SIRFSOC_UART_TXFIFO_STATUS)
+ & SIRFSOC_UART1_TXFIFO_FULL)
+ barrier();
+
+ __raw_writel(c, SIRFSOC_UART1_PA_BASE + SIRFSOC_UART_TXFIFO_DATA);
+}
+
+static inline void flush(void)
+{
+}
+
+#endif
+
--- /dev/null
+/*
+ * arch/arm/ach-prima2/include/mach/vmalloc.h
+ *
+ * Copyright (c) 2010 – 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#ifndef __MACH_VMALLOC_H
+#define __MACH_VMALLOC_H
+
+#include <linux/const.h>
+
+#define VMALLOC_END _AC(0xFEC00000, UL)
+
+#endif
--- /dev/null
+/*
+ * interrupt controller support for CSR SiRFprimaII
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <mach/hardware.h>
+#include <asm/mach/irq.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#define SIRFSOC_INT_RISC_MASK0 0x0018
+#define SIRFSOC_INT_RISC_MASK1 0x001C
+#define SIRFSOC_INT_RISC_LEVEL0 0x0020
+#define SIRFSOC_INT_RISC_LEVEL1 0x0024
+
+void __iomem *sirfsoc_intc_base;
+
+static __init void
+sirfsoc_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num)
+{
+ struct irq_chip_generic *gc;
+ struct irq_chip_type *ct;
+
+ gc = irq_alloc_generic_chip("SIRFINTC", 1, irq_start, base, handle_level_irq);
+ ct = gc->chip_types;
+
+ ct->chip.irq_mask = irq_gc_mask_clr_bit;
+ ct->chip.irq_unmask = irq_gc_mask_set_bit;
+ ct->regs.mask = SIRFSOC_INT_RISC_MASK0;
+
+ irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE, IRQ_NOREQUEST, 0);
+}
+
+static __init void sirfsoc_irq_init(void)
+{
+ sirfsoc_alloc_gc(sirfsoc_intc_base, 0, 32);
+ sirfsoc_alloc_gc(sirfsoc_intc_base + 4, 32, SIRFSOC_INTENAL_IRQ_END - 32);
+
+ writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL0);
+ writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL1);
+
+ writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK0);
+ writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK1);
+}
+
+static struct of_device_id intc_ids[] = {
+ { .compatible = "sirf,prima2-intc" },
+};
+
+void __init sirfsoc_of_irq_init(void)
+{
+ struct device_node *np;
+
+ np = of_find_matching_node(NULL, intc_ids);
+ if (!np)
+ panic("unable to find compatible intc node in dtb\n");
+
+ sirfsoc_intc_base = of_iomap(np, 0);
+ if (!sirfsoc_intc_base)
+ panic("unable to map intc cpu registers\n");
+
+ of_node_put(np);
+
+ sirfsoc_irq_init();
+}
--- /dev/null
+/*
+ * l2 cache initialization for CSR SiRFprimaII
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/errno.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <asm/hardware/cache-l2x0.h>
+#include <mach/memory.h>
+
+#define L2X0_ADDR_FILTERING_START 0xC00
+#define L2X0_ADDR_FILTERING_END 0xC04
+
+static struct of_device_id l2x_ids[] = {
+ { .compatible = "arm,pl310-cache" },
+};
+
+static int __init sirfsoc_of_l2x_init(void)
+{
+ struct device_node *np;
+ void __iomem *sirfsoc_l2x_base;
+
+ np = of_find_matching_node(NULL, l2x_ids);
+ if (!np)
+ panic("unable to find compatible l2x node in dtb\n");
+
+ sirfsoc_l2x_base = of_iomap(np, 0);
+ if (!sirfsoc_l2x_base)
+ panic("unable to map l2x cpu registers\n");
+
+ of_node_put(np);
+
+ if (!(readl_relaxed(sirfsoc_l2x_base + L2X0_CTRL) & 1)) {
+ /*
+ * set the physical memory windows L2 cache will cover
+ */
+ writel_relaxed(PLAT_PHYS_OFFSET + 1024 * 1024 * 1024,
+ sirfsoc_l2x_base + L2X0_ADDR_FILTERING_END);
+ writel_relaxed(PLAT_PHYS_OFFSET | 0x1,
+ sirfsoc_l2x_base + L2X0_ADDR_FILTERING_START);
+
+ writel_relaxed(0,
+ sirfsoc_l2x_base + L2X0_TAG_LATENCY_CTRL);
+ writel_relaxed(0,
+ sirfsoc_l2x_base + L2X0_DATA_LATENCY_CTRL);
+ }
+ l2x0_init((void __iomem *)sirfsoc_l2x_base, 0x00040000,
+ 0x00000000);
+
+ return 0;
+}
+early_initcall(sirfsoc_of_l2x_init);
--- /dev/null
+/*
+ * Static memory mapping for DEBUG_LL
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/kernel.h>
+#include <asm/page.h>
+#include <asm/mach/map.h>
+#include <mach/map.h>
+#include <mach/uart.h>
+
+void __init sirfsoc_map_lluart(void)
+{
+ struct map_desc sirfsoc_lluart_map = {
+ .virtual = SIRFSOC_UART1_VA_BASE,
+ .pfn = __phys_to_pfn(SIRFSOC_UART1_PA_BASE),
+ .length = SIRFSOC_UART1_SIZE,
+ .type = MT_DEVICE,
+ };
+
+ iotable_init(&sirfsoc_lluart_map, 1);
+}
--- /dev/null
+/*
+ * Defines machines for CSR SiRFprimaII
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include "common.h"
+
+static struct of_device_id sirfsoc_of_bus_ids[] __initdata = {
+ { .compatible = "simple-bus", },
+ {},
+};
+
+void __init sirfsoc_mach_init(void)
+{
+ of_platform_bus_probe(NULL, sirfsoc_of_bus_ids, NULL);
+}
+
+static const char *prima2cb_dt_match[] __initdata = {
+ "sirf,prima2-cb",
+ NULL
+};
+
+MACHINE_START(PRIMA2_EVB, "prima2cb")
+ /* Maintainer: Barry Song <baohua.song@csr.com> */
+ .boot_params = 0x00000100,
+ .init_early = sirfsoc_of_clk_init,
+ .map_io = sirfsoc_map_lluart,
+ .init_irq = sirfsoc_of_irq_init,
+ .timer = &sirfsoc_timer,
+ .init_machine = sirfsoc_mach_init,
+ .dt_compat = prima2cb_dt_match,
+MACHINE_END
--- /dev/null
+/*
+ * reset controller for CSR SiRFprimaII
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/kernel.h>
+#include <linux/mutex.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+void __iomem *sirfsoc_rstc_base;
+static DEFINE_MUTEX(rstc_lock);
+
+static struct of_device_id rstc_ids[] = {
+ { .compatible = "sirf,prima2-rstc" },
+};
+
+static int __init sirfsoc_of_rstc_init(void)
+{
+ struct device_node *np;
+
+ np = of_find_matching_node(NULL, rstc_ids);
+ if (!np)
+ panic("unable to find compatible rstc node in dtb\n");
+
+ sirfsoc_rstc_base = of_iomap(np, 0);
+ if (!sirfsoc_rstc_base)
+ panic("unable to map rstc cpu registers\n");
+
+ of_node_put(np);
+
+ return 0;
+}
+early_initcall(sirfsoc_of_rstc_init);
+
+int sirfsoc_reset_device(struct device *dev)
+{
+ const unsigned int *prop = of_get_property(dev->of_node, "reset-bit", NULL);
+ unsigned int reset_bit;
+
+ if (!prop)
+ return -ENODEV;
+
+ reset_bit = be32_to_cpup(prop);
+
+ mutex_lock(&rstc_lock);
+
+ /*
+ * Writing 1 to this bit resets corresponding block. Writing 0 to this
+ * bit de-asserts reset signal of the corresponding block.
+ * datasheet doesn't require explicit delay between the set and clear
+ * of reset bit. it could be shorter if tests pass.
+ */
+ writel(readl(sirfsoc_rstc_base + (reset_bit / 32) * 4) | reset_bit,
+ sirfsoc_rstc_base + (reset_bit / 32) * 4);
+ msleep(10);
+ writel(readl(sirfsoc_rstc_base + (reset_bit / 32) * 4) & ~reset_bit,
+ sirfsoc_rstc_base + (reset_bit / 32) * 4);
+
+ mutex_unlock(&rstc_lock);
+
+ return 0;
+}
--- /dev/null
+/*
+ * System timer for CSR SiRFprimaII
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/clockchips.h>
+#include <linux/clocksource.h>
+#include <linux/bitops.h>
+#include <linux/irq.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <mach/map.h>
+#include <asm/mach/time.h>
+
+#define SIRFSOC_TIMER_COUNTER_LO 0x0000
+#define SIRFSOC_TIMER_COUNTER_HI 0x0004
+#define SIRFSOC_TIMER_MATCH_0 0x0008
+#define SIRFSOC_TIMER_MATCH_1 0x000C
+#define SIRFSOC_TIMER_MATCH_2 0x0010
+#define SIRFSOC_TIMER_MATCH_3 0x0014
+#define SIRFSOC_TIMER_MATCH_4 0x0018
+#define SIRFSOC_TIMER_MATCH_5 0x001C
+#define SIRFSOC_TIMER_STATUS 0x0020
+#define SIRFSOC_TIMER_INT_EN 0x0024
+#define SIRFSOC_TIMER_WATCHDOG_EN 0x0028
+#define SIRFSOC_TIMER_DIV 0x002C
+#define SIRFSOC_TIMER_LATCH 0x0030
+#define SIRFSOC_TIMER_LATCHED_LO 0x0034
+#define SIRFSOC_TIMER_LATCHED_HI 0x0038
+
+#define SIRFSOC_TIMER_WDT_INDEX 5
+
+#define SIRFSOC_TIMER_LATCH_BIT BIT(0)
+
+static void __iomem *sirfsoc_timer_base;
+static void __init sirfsoc_of_timer_map(void);
+
+/* timer0 interrupt handler */
+static irqreturn_t sirfsoc_timer_interrupt(int irq, void *dev_id)
+{
+ struct clock_event_device *ce = dev_id;
+
+ WARN_ON(!(readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_STATUS) & BIT(0)));
+
+ /* clear timer0 interrupt */
+ writel_relaxed(BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_STATUS);
+
+ ce->event_handler(ce);
+
+ return IRQ_HANDLED;
+}
+
+/* read 64-bit timer counter */
+static cycle_t sirfsoc_timer_read(struct clocksource *cs)
+{
+ u64 cycles;
+
+ /* latch the 64-bit timer counter */
+ writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base + SIRFSOC_TIMER_LATCH);
+ cycles = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_LATCHED_HI);
+ cycles = (cycles << 32) | readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_LATCHED_LO);
+
+ return cycles;
+}
+
+static int sirfsoc_timer_set_next_event(unsigned long delta,
+ struct clock_event_device *ce)
+{
+ unsigned long now, next;
+
+ writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base + SIRFSOC_TIMER_LATCH);
+ now = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_LATCHED_LO);
+ next = now + delta;
+ writel_relaxed(next, sirfsoc_timer_base + SIRFSOC_TIMER_MATCH_0);
+ writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base + SIRFSOC_TIMER_LATCH);
+ now = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_LATCHED_LO);
+
+ return next - now > delta ? -ETIME : 0;
+}
+
+static void sirfsoc_timer_set_mode(enum clock_event_mode mode,
+ struct clock_event_device *ce)
+{
+ u32 val = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN);
+ switch (mode) {
+ case CLOCK_EVT_MODE_PERIODIC:
+ WARN_ON(1);
+ break;
+ case CLOCK_EVT_MODE_ONESHOT:
+ writel_relaxed(val | BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN);
+ break;
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ writel_relaxed(val & ~BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN);
+ break;
+ case CLOCK_EVT_MODE_UNUSED:
+ case CLOCK_EVT_MODE_RESUME:
+ break;
+ }
+}
+
+static struct clock_event_device sirfsoc_clockevent = {
+ .name = "sirfsoc_clockevent",
+ .rating = 200,
+ .features = CLOCK_EVT_FEAT_ONESHOT,
+ .set_mode = sirfsoc_timer_set_mode,
+ .set_next_event = sirfsoc_timer_set_next_event,
+};
+
+static struct clocksource sirfsoc_clocksource = {
+ .name = "sirfsoc_clocksource",
+ .rating = 200,
+ .mask = CLOCKSOURCE_MASK(64),
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+ .read = sirfsoc_timer_read,
+};
+
+static struct irqaction sirfsoc_timer_irq = {
+ .name = "sirfsoc_timer0",
+ .flags = IRQF_TIMER,
+ .irq = 0,
+ .handler = sirfsoc_timer_interrupt,
+ .dev_id = &sirfsoc_clockevent,
+};
+
+/* Overwrite weak default sched_clock with more precise one */
+unsigned long long notrace sched_clock(void)
+{
+ static int is_mapped = 0;
+
+ /*
+ * sched_clock is called earlier than .init of sys_timer
+ * if we map timer memory in .init of sys_timer, system
+ * will panic due to illegal memory access
+ */
+ if(!is_mapped) {
+ sirfsoc_of_timer_map();
+ is_mapped = 1;
+ }
+
+ return sirfsoc_timer_read(NULL) * (NSEC_PER_SEC / CLOCK_TICK_RATE);
+}
+
+static void __init sirfsoc_clockevent_init(void)
+{
+ clockevents_calc_mult_shift(&sirfsoc_clockevent, CLOCK_TICK_RATE, 60);
+
+ sirfsoc_clockevent.max_delta_ns =
+ clockevent_delta2ns(-2, &sirfsoc_clockevent);
+ sirfsoc_clockevent.min_delta_ns =
+ clockevent_delta2ns(2, &sirfsoc_clockevent);
+
+ sirfsoc_clockevent.cpumask = cpumask_of(0);
+ clockevents_register_device(&sirfsoc_clockevent);
+}
+
+/* initialize the kernel jiffy timer source */
+static void __init sirfsoc_timer_init(void)
+{
+ unsigned long rate;
+
+ /* timer's input clock is io clock */
+ struct clk *clk = clk_get_sys("io", NULL);
+
+ BUG_ON(IS_ERR(clk));
+
+ rate = clk_get_rate(clk);
+
+ BUG_ON(rate < CLOCK_TICK_RATE);
+ BUG_ON(rate % CLOCK_TICK_RATE);
+
+ writel_relaxed(rate / CLOCK_TICK_RATE / 2 - 1, sirfsoc_timer_base + SIRFSOC_TIMER_DIV);
+ writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_LO);
+ writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_HI);
+ writel_relaxed(BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_STATUS);
+
+ BUG_ON(clocksource_register_hz(&sirfsoc_clocksource, CLOCK_TICK_RATE));
+
+ BUG_ON(setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq));
+
+ sirfsoc_clockevent_init();
+}
+
+static struct of_device_id timer_ids[] = {
+ { .compatible = "sirf,prima2-tick" },
+};
+
+static void __init sirfsoc_of_timer_map(void)
+{
+ struct device_node *np;
+ const unsigned int *intspec;
+
+ np = of_find_matching_node(NULL, timer_ids);
+ if (!np)
+ panic("unable to find compatible timer node in dtb\n");
+ sirfsoc_timer_base = of_iomap(np, 0);
+ if (!sirfsoc_timer_base)
+ panic("unable to map timer cpu registers\n");
+
+ /* Get the interrupts property */
+ intspec = of_get_property(np, "interrupts", NULL);
+ BUG_ON(!intspec);
+ sirfsoc_timer_irq.irq = be32_to_cpup(intspec);
+
+ of_node_put(np);
+}
+
+struct sys_timer sirfsoc_timer = {
+ .init = sirfsoc_timer_init,
+};
--- /dev/null
+#
+# Makefile for the linux kernel.
+#
+
+# Common support
+obj-y := common.o timer.o board_dt.o
--- /dev/null
+ zreladdr-y := 0x00008000
+params_phys-y := 0x00000100
+initrd_phys-y := 0x00800000
--- /dev/null
+/*
+ * This file contains common code that is intended to be used across
+ * boards so that it's not replicated.
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/cpumask.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/of.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach-types.h>
+#include <asm/page.h>
+#include <asm/hardware/gic.h>
+#include <asm/hardware/cache-l2x0.h>
+
+#include <mach/zynq_soc.h>
+#include <mach/clkdev.h>
+#include "common.h"
+
+static struct of_device_id zynq_of_bus_ids[] __initdata = {
+ { .compatible = "simple-bus", },
+ {}
+};
+
+/**
+ * xilinx_init_machine() - System specific initialization, intended to be
+ * called from board specific initialization.
+ */
+static void __init xilinx_init_machine(void)
+{
+#ifdef CONFIG_CACHE_L2X0
+ /*
+ * 64KB way size, 8-way associativity, parity disabled
+ */
+ l2x0_init(PL310_L2CC_BASE, 0x02060000, 0xF0F0FFFF);
+#endif
+
+ of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL);
+}
+
+/**
+ * xilinx_irq_init() - Interrupt controller initialization for the GIC.
+ */
+static void __init xilinx_irq_init(void)
+{
+ gic_init(0, 29, SCU_GIC_DIST_BASE, SCU_GIC_CPU_BASE);
+}
+
+/* The minimum devices needed to be mapped before the VM system is up and
+ * running include the GIC, UART and Timer Counter.
+ */
+
+static struct map_desc io_desc[] __initdata = {
+ {
+ .virtual = TTC0_VIRT,
+ .pfn = __phys_to_pfn(TTC0_PHYS),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = SCU_PERIPH_VIRT,
+ .pfn = __phys_to_pfn(SCU_PERIPH_PHYS),
+ .length = SZ_8K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = PL310_L2CC_VIRT,
+ .pfn = __phys_to_pfn(PL310_L2CC_PHYS),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+
+#ifdef CONFIG_DEBUG_LL
+ {
+ .virtual = UART0_VIRT,
+ .pfn = __phys_to_pfn(UART0_PHYS),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+#endif
+
+};
+
+/**
+ * xilinx_map_io() - Create memory mappings needed for early I/O.
+ */
+static void __init xilinx_map_io(void)
+{
+ iotable_init(io_desc, ARRAY_SIZE(io_desc));
+}
+
+static const char *xilinx_dt_match[] = {
+ "xlnx,zynq-ep107",
+ NULL
+};
+
+MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform")
+ .map_io = xilinx_map_io,
+ .init_irq = xilinx_irq_init,
+ .init_machine = xilinx_init_machine,
+ .timer = &xttcpss_sys_timer,
+ .dt_compat = xilinx_dt_match,
+MACHINE_END
--- /dev/null
+/*
+ * This file contains common function prototypes to avoid externs
+ * in the c files.
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_ZYNQ_COMMON_H__
+#define __MACH_ZYNQ_COMMON_H__
+
+#include <asm/mach/time.h>
+
+extern struct sys_timer xttcpss_sys_timer;
+
+#endif
--- /dev/null
+/*
+ * arch/arm/mach-zynq/include/mach/clkdev.h
+ *
+ * Copyright (C) 2011 Xilinx, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __MACH_CLKDEV_H__
+#define __MACH_CLKDEV_H__
+
+#include <plat/clock.h>
+
+struct clk {
+ unsigned long rate;
+ const struct clk_ops *ops;
+ const struct icst_params *params;
+ void __iomem *vcoreg;
+};
+
+#define __clk_get(clk) ({ 1; })
+#define __clk_put(clk) do { } while (0)
+
+#endif
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <mach/zynq_soc.h>
+#include <mach/uart.h>
+
+ .macro addruart, rp, rv
+ ldr \rp, =LL_UART_PADDR @ physical
+ ldr \rv, =LL_UART_VADDR @ virtual
+ .endm
+
+ .macro senduart,rd,rx
+ str \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA
+ .endm
+
+ .macro waituart,rd,rx
+ .endm
+
+ .macro busyuart,rd,rx
+1002: ldr \rd, [\rx, #UART_SR_OFFSET] @ get status register
+ tst \rd, #UART_SR_TXFULL @
+ bne 1002b @ wait if FIFO is full
+ .endm
--- /dev/null
+/*
+ * arch/arm/mach-zynq/include/mach/entry-macro.S
+ *
+ * Low-level IRQ helper macros
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * based on arch/plat-mxc/include/mach/entry-macro.S
+ *
+ * Copyright (C) 2007 Lennert Buytenhek <buytenh@wantstofly.org>
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <mach/hardware.h>
+#include <asm/hardware/entry-macro-gic.S>
+
+ .macro disable_fiq
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/hardware.h
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_HARDWARE_H__
+#define __MACH_HARDWARE_H__
+
+#endif
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/io.h
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_IO_H__
+#define __MACH_IO_H__
+
+/* Allow IO space to be anywhere in the memory */
+
+#define IO_SPACE_LIMIT 0xffff
+
+/* IO address mapping macros, nothing special at this time but required */
+
+#ifdef __ASSEMBLER__
+#define IOMEM(x) (x)
+#else
+#define IOMEM(x) ((void __force __iomem *)(x))
+#endif
+
+#define __io(a) __typesafe_io(a)
+#define __mem_pci(a) (a)
+
+#endif
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/irqs.h
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_IRQS_H
+#define __MACH_IRQS_H
+
+#define ARCH_NR_GPIOS 118
+#define NR_IRQS (128 + ARCH_NR_GPIOS)
+
+#endif
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/memory.h
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_MEMORY_H__
+#define __MACH_MEMORY_H__
+
+#include <asm/sizes.h>
+
+#define PLAT_PHYS_OFFSET UL(0x0)
+
+#endif
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/system.h
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_SYSTEM_H__
+#define __MACH_SYSTEM_H__
+
+static inline void arch_idle(void)
+{
+ cpu_do_idle();
+}
+
+static inline void arch_reset(char mode, const char *cmd)
+{
+ /* Add architecture specific reset processing here */
+}
+
+#endif
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/timex.h
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_TIMEX_H__
+#define __MACH_TIMEX_H__
+
+/* the following is needed for the system to build but will be removed
+ in the future, the value is not important but won't hurt
+*/
+#define CLOCK_TICK_RATE (100 * HZ)
+
+#endif
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/uart.h
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_UART_H__
+#define __MACH_UART_H__
+
+#define UART_CR_OFFSET 0x00 /* Control Register [8:0] */
+#define UART_SR_OFFSET 0x2C /* Channel Status [11:0] */
+#define UART_FIFO_OFFSET 0x30 /* FIFO [15:0] or [7:0] */
+
+#define UART_SR_TXFULL 0x00000010 /* TX FIFO full */
+#define UART_SR_TXEMPTY 0x00000008 /* TX FIFO empty */
+
+#endif
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/uncompress.h
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_UNCOMPRESS_H__
+#define __MACH_UNCOMPRESS_H__
+
+#include <linux/io.h>
+#include <asm/processor.h>
+#include <mach/zynq_soc.h>
+#include <mach/uart.h>
+
+void arch_decomp_setup(void)
+{
+}
+
+static inline void flush(void)
+{
+ /*
+ * Wait while the FIFO is not empty
+ */
+ while (!(__raw_readl(IOMEM(LL_UART_PADDR + UART_SR_OFFSET)) &
+ UART_SR_TXEMPTY))
+ cpu_relax();
+}
+
+#define arch_decomp_wdog()
+
+static void putc(char ch)
+{
+ /*
+ * Wait for room in the FIFO, then write the char into the FIFO
+ */
+ while (__raw_readl(IOMEM(LL_UART_PADDR + UART_SR_OFFSET)) &
+ UART_SR_TXFULL)
+ cpu_relax();
+
+ __raw_writel(ch, IOMEM(LL_UART_PADDR + UART_FIFO_OFFSET));
+}
+
+#endif
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/vmalloc.h
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_VMALLOC_H__
+#define __MACH_VMALLOC_H__
+
+#define VMALLOC_END 0xE0000000UL
+
+#endif
--- /dev/null
+/* arch/arm/mach-zynq/include/mach/zynq_soc.h
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_XILINX_SOC_H__
+#define __MACH_XILINX_SOC_H__
+
+#define PERIPHERAL_CLOCK_RATE 2500000
+
+/* For now, all mappings are flat (physical = virtual)
+ */
+#define UART0_PHYS 0xE0000000
+#define UART0_VIRT UART0_PHYS
+
+#define TTC0_PHYS 0xF8001000
+#define TTC0_VIRT TTC0_PHYS
+
+#define PL310_L2CC_PHYS 0xF8F02000
+#define PL310_L2CC_VIRT PL310_L2CC_PHYS
+
+#define SCU_PERIPH_PHYS 0xF8F00000
+#define SCU_PERIPH_VIRT SCU_PERIPH_PHYS
+
+/* The following are intended for the devices that are mapped early */
+
+#define TTC0_BASE IOMEM(TTC0_VIRT)
+#define SCU_PERIPH_BASE IOMEM(SCU_PERIPH_VIRT)
+#define SCU_GIC_CPU_BASE (SCU_PERIPH_BASE + 0x100)
+#define SCU_GIC_DIST_BASE (SCU_PERIPH_BASE + 0x1000)
+#define PL310_L2CC_BASE IOMEM(PL310_L2CC_VIRT)
+
+/*
+ * Mandatory for CONFIG_LL_DEBUG, UART is mapped virtual = physical
+ */
+#define LL_UART_PADDR UART0_PHYS
+#define LL_UART_VADDR UART0_VIRT
+
+#endif
--- /dev/null
+/*
+ * This file contains driver for the Xilinx PS Timer Counter IP.
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * based on arch/mips/kernel/time.c timer driver
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/types.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/io.h>
+
+#include <asm/mach/time.h>
+#include <mach/zynq_soc.h>
+#include "common.h"
+
+#define IRQ_TIMERCOUNTER0 42
+
+/*
+ * This driver configures the 2 16-bit count-up timers as follows:
+ *
+ * T1: Timer 1, clocksource for generic timekeeping
+ * T2: Timer 2, clockevent source for hrtimers
+ * T3: Timer 3, <unused>
+ *
+ * The input frequency to the timer module for emulation is 2.5MHz which is
+ * common to all the timer channels (T1, T2, and T3). With a pre-scaler of 32,
+ * the timers are clocked at 78.125KHz (12.8 us resolution).
+ *
+ * The input frequency to the timer module in silicon will be 200MHz. With the
+ * pre-scaler of 32, the timers are clocked at 6.25MHz (160ns resolution).
+ */
+#define XTTCPSS_CLOCKSOURCE 0 /* Timer 1 as a generic timekeeping */
+#define XTTCPSS_CLOCKEVENT 1 /* Timer 2 as a clock event */
+
+#define XTTCPSS_TIMER_BASE TTC0_BASE
+#define XTTCPCC_EVENT_TIMER_IRQ (IRQ_TIMERCOUNTER0 + 1)
+/*
+ * Timer Register Offset Definitions of Timer 1, Increment base address by 4
+ * and use same offsets for Timer 2
+ */
+#define XTTCPSS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */
+#define XTTCPSS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */
+#define XTTCPSS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */
+#define XTTCPSS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */
+#define XTTCPSS_MATCH_1_OFFSET 0x30 /* Match 1 Value Reg, RW */
+#define XTTCPSS_MATCH_2_OFFSET 0x3C /* Match 2 Value Reg, RW */
+#define XTTCPSS_MATCH_3_OFFSET 0x48 /* Match 3 Value Reg, RW */
+#define XTTCPSS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */
+#define XTTCPSS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */
+
+#define XTTCPSS_CNT_CNTRL_DISABLE_MASK 0x1
+
+/* Setup the timers to use pre-scaling */
+
+#define TIMER_RATE (PERIPHERAL_CLOCK_RATE / 32)
+
+/**
+ * struct xttcpss_timer - This definition defines local timer structure
+ *
+ * @base_addr: Base address of timer
+ **/
+struct xttcpss_timer {
+ void __iomem *base_addr;
+};
+
+static struct xttcpss_timer timers[2];
+static struct clock_event_device xttcpss_clockevent;
+
+/**
+ * xttcpss_set_interval - Set the timer interval value
+ *
+ * @timer: Pointer to the timer instance
+ * @cycles: Timer interval ticks
+ **/
+static void xttcpss_set_interval(struct xttcpss_timer *timer,
+ unsigned long cycles)
+{
+ u32 ctrl_reg;
+
+ /* Disable the counter, set the counter value and re-enable counter */
+ ctrl_reg = __raw_readl(timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+ ctrl_reg |= XTTCPSS_CNT_CNTRL_DISABLE_MASK;
+ __raw_writel(ctrl_reg, timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+
+ __raw_writel(cycles, timer->base_addr + XTTCPSS_INTR_VAL_OFFSET);
+
+ /* Reset the counter (0x10) so that it starts from 0, one-shot
+ mode makes this needed for timing to be right. */
+ ctrl_reg |= 0x10;
+ ctrl_reg &= ~XTTCPSS_CNT_CNTRL_DISABLE_MASK;
+ __raw_writel(ctrl_reg, timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+}
+
+/**
+ * xttcpss_clock_event_interrupt - Clock event timer interrupt handler
+ *
+ * @irq: IRQ number of the Timer
+ * @dev_id: void pointer to the xttcpss_timer instance
+ *
+ * returns: Always IRQ_HANDLED - success
+ **/
+static irqreturn_t xttcpss_clock_event_interrupt(int irq, void *dev_id)
+{
+ struct clock_event_device *evt = &xttcpss_clockevent;
+ struct xttcpss_timer *timer = dev_id;
+
+ /* Acknowledge the interrupt and call event handler */
+ __raw_writel(__raw_readl(timer->base_addr + XTTCPSS_ISR_OFFSET),
+ timer->base_addr + XTTCPSS_ISR_OFFSET);
+
+ evt->event_handler(evt);
+
+ return IRQ_HANDLED;
+}
+
+static struct irqaction event_timer_irq = {
+ .name = "xttcpss clockevent",
+ .flags = IRQF_DISABLED | IRQF_TIMER,
+ .handler = xttcpss_clock_event_interrupt,
+};
+
+/**
+ * xttcpss_timer_hardware_init - Initialize the timer hardware
+ *
+ * Initialize the hardware to start the clock source, get the clock
+ * event timer ready to use, and hook up the interrupt.
+ **/
+static void __init xttcpss_timer_hardware_init(void)
+{
+ /* Setup the clock source counter to be an incrementing counter
+ * with no interrupt and it rolls over at 0xFFFF. Pre-scale
+ it by 32 also. Let it start running now.
+ */
+ timers[XTTCPSS_CLOCKSOURCE].base_addr = XTTCPSS_TIMER_BASE;
+
+ __raw_writel(0x0, timers[XTTCPSS_CLOCKSOURCE].base_addr +
+ XTTCPSS_IER_OFFSET);
+ __raw_writel(0x9, timers[XTTCPSS_CLOCKSOURCE].base_addr +
+ XTTCPSS_CLK_CNTRL_OFFSET);
+ __raw_writel(0x10, timers[XTTCPSS_CLOCKSOURCE].base_addr +
+ XTTCPSS_CNT_CNTRL_OFFSET);
+
+ /* Setup the clock event timer to be an interval timer which
+ * is prescaled by 32 using the interval interrupt. Leave it
+ * disabled for now.
+ */
+
+ timers[XTTCPSS_CLOCKEVENT].base_addr = XTTCPSS_TIMER_BASE + 4;
+
+ __raw_writel(0x23, timers[XTTCPSS_CLOCKEVENT].base_addr +
+ XTTCPSS_CNT_CNTRL_OFFSET);
+ __raw_writel(0x9, timers[XTTCPSS_CLOCKEVENT].base_addr +
+ XTTCPSS_CLK_CNTRL_OFFSET);
+ __raw_writel(0x1, timers[XTTCPSS_CLOCKEVENT].base_addr +
+ XTTCPSS_IER_OFFSET);
+
+ /* Setup IRQ the clock event timer */
+ event_timer_irq.dev_id = &timers[XTTCPSS_CLOCKEVENT];
+ setup_irq(XTTCPCC_EVENT_TIMER_IRQ, &event_timer_irq);
+}
+
+/**
+ * __raw_readl_cycles - Reads the timer counter register
+ *
+ * returns: Current timer counter register value
+ **/
+static cycle_t __raw_readl_cycles(struct clocksource *cs)
+{
+ struct xttcpss_timer *timer = &timers[XTTCPSS_CLOCKSOURCE];
+
+ return (cycle_t)__raw_readl(timer->base_addr +
+ XTTCPSS_COUNT_VAL_OFFSET);
+}
+
+
+/*
+ * Instantiate and initialize the clock source structure
+ */
+static struct clocksource clocksource_xttcpss = {
+ .name = "xttcpss_timer1",
+ .rating = 200, /* Reasonable clock source */
+ .read = __raw_readl_cycles,
+ .mask = CLOCKSOURCE_MASK(16),
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+
+/**
+ * xttcpss_set_next_event - Sets the time interval for next event
+ *
+ * @cycles: Timer interval ticks
+ * @evt: Address of clock event instance
+ *
+ * returns: Always 0 - success
+ **/
+static int xttcpss_set_next_event(unsigned long cycles,
+ struct clock_event_device *evt)
+{
+ struct xttcpss_timer *timer = &timers[XTTCPSS_CLOCKEVENT];
+
+ xttcpss_set_interval(timer, cycles);
+ return 0;
+}
+
+/**
+ * xttcpss_set_mode - Sets the mode of timer
+ *
+ * @mode: Mode to be set
+ * @evt: Address of clock event instance
+ **/
+static void xttcpss_set_mode(enum clock_event_mode mode,
+ struct clock_event_device *evt)
+{
+ struct xttcpss_timer *timer = &timers[XTTCPSS_CLOCKEVENT];
+ u32 ctrl_reg;
+
+ switch (mode) {
+ case CLOCK_EVT_MODE_PERIODIC:
+ xttcpss_set_interval(timer, TIMER_RATE / HZ);
+ break;
+ case CLOCK_EVT_MODE_ONESHOT:
+ case CLOCK_EVT_MODE_UNUSED:
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ ctrl_reg = __raw_readl(timer->base_addr +
+ XTTCPSS_CNT_CNTRL_OFFSET);
+ ctrl_reg |= XTTCPSS_CNT_CNTRL_DISABLE_MASK;
+ __raw_writel(ctrl_reg,
+ timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+ break;
+ case CLOCK_EVT_MODE_RESUME:
+ ctrl_reg = __raw_readl(timer->base_addr +
+ XTTCPSS_CNT_CNTRL_OFFSET);
+ ctrl_reg &= ~XTTCPSS_CNT_CNTRL_DISABLE_MASK;
+ __raw_writel(ctrl_reg,
+ timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+ break;
+ }
+}
+
+/*
+ * Instantiate and initialize the clock event structure
+ */
+static struct clock_event_device xttcpss_clockevent = {
+ .name = "xttcpss_timer2",
+ .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
+ .set_next_event = xttcpss_set_next_event,
+ .set_mode = xttcpss_set_mode,
+ .rating = 200,
+};
+
+/**
+ * xttcpss_timer_init - Initialize the timer
+ *
+ * Initializes the timer hardware and register the clock source and clock event
+ * timers with Linux kernal timer framework
+ **/
+static void __init xttcpss_timer_init(void)
+{
+ xttcpss_timer_hardware_init();
+ clocksource_register_hz(&clocksource_xttcpss, TIMER_RATE);
+
+ /* Calculate the parameters to allow the clockevent to operate using
+ integer math
+ */
+ clockevents_calc_mult_shift(&xttcpss_clockevent, TIMER_RATE, 4);
+
+ xttcpss_clockevent.max_delta_ns =
+ clockevent_delta2ns(0xfffe, &xttcpss_clockevent);
+ xttcpss_clockevent.min_delta_ns =
+ clockevent_delta2ns(1, &xttcpss_clockevent);
+
+ /* Indicate that clock event is on 1st CPU as SMP boot needs it */
+
+ xttcpss_clockevent.cpumask = cpumask_of(0);
+ clockevents_register_device(&xttcpss_clockevent);
+}
+
+/*
+ * Instantiate and initialize the system timer structure
+ */
+struct sys_timer xttcpss_sys_timer = {
+ .init = xttcpss_timer_init,
+};
depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || \
REALVIEW_EB_A9MP || SOC_IMX35 || SOC_IMX31 || MACH_REALVIEW_PBX || \
ARCH_NOMADIK || ARCH_OMAP4 || ARCH_EXYNOS4 || ARCH_TEGRA || \
- ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_SHMOBILE
+ ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_SHMOBILE || \
+ ARCH_PRIMA2 || ARCH_ZYNQ
default y
select OUTER_CACHE
select OUTER_CACHE_SYNC
#define CK_36XX (1 << 10) /* 36xx/37xx-specific clocks */
#define CK_443X (1 << 11)
#define CK_TI816X (1 << 12)
+#define CK_446X (1 << 13)
#define CK_34XX (CK_3430ES1 | CK_3430ES2PLUS)
#define RATE_IN_36XX (1 << 4)
#define RATE_IN_4430 (1 << 5)
#define RATE_IN_TI816X (1 << 6)
+#define RATE_IN_4460 (1 << 7)
#define RATE_IN_24XX (RATE_IN_242X | RATE_IN_243X)
#define RATE_IN_34XX (RATE_IN_3430ES1 | RATE_IN_3430ES2PLUS)
#define RATE_IN_3XXX (RATE_IN_34XX | RATE_IN_36XX)
+#define RATE_IN_44XX (RATE_IN_4430 | RATE_IN_4460)
/* RATE_IN_3430ES2PLUS_36XX includes 34xx/35xx with ES >=2, and all 36xx/37xx */
#define RATE_IN_3430ES2PLUS_36XX (RATE_IN_3430ES2PLUS | RATE_IN_36XX)
* cpu_is_omap243x(): True for OMAP2430
* cpu_is_omap343x(): True for OMAP3430
* cpu_is_omap443x(): True for OMAP4430
+ * cpu_is_omap446x(): True for OMAP4460
*/
#define GET_OMAP_CLASS (omap_rev() & 0xff)
IS_OMAP_SUBCLASS(343x, 0x343)
IS_OMAP_SUBCLASS(363x, 0x363)
IS_OMAP_SUBCLASS(443x, 0x443)
+IS_OMAP_SUBCLASS(446x, 0x446)
IS_TI_SUBCLASS(816x, 0x816)
#define cpu_is_ti816x() 0
#define cpu_is_omap44xx() 0
#define cpu_is_omap443x() 0
+#define cpu_is_omap446x() 0
#if defined(MULTI_OMAP1)
# if defined(CONFIG_ARCH_OMAP730)
# if defined(CONFIG_ARCH_OMAP4)
# undef cpu_is_omap44xx
# undef cpu_is_omap443x
+# undef cpu_is_omap446x
# define cpu_is_omap44xx() is_omap44xx()
# define cpu_is_omap443x() is_omap443x()
+# define cpu_is_omap446x() is_omap446x()
# endif
/* Macros to detect if we have OMAP1 or OMAP2 */
#define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8))
#define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8))
+#define OMAP446X_CLASS 0x44600044
+#define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8))
+
/*
* omap_chip bits
*
#define CHIP_IS_OMAP4430ES2_1 (1 << 12)
#define CHIP_IS_OMAP4430ES2_2 (1 << 13)
#define CHIP_IS_TI816X (1 << 14)
+#define CHIP_IS_OMAP4460ES1_0 (1 << 15)
#define CHIP_IS_OMAP24XX (CHIP_IS_OMAP2420 | CHIP_IS_OMAP2430)
#define CHIP_IS_OMAP4430 (CHIP_IS_OMAP4430ES1 | \
CHIP_IS_OMAP4430ES2 | \
CHIP_IS_OMAP4430ES2_1 | \
- CHIP_IS_OMAP4430ES2_2)
+ CHIP_IS_OMAP4430ES2_2 | \
+ CHIP_IS_OMAP4460ES1_0)
/*
* "GE" here represents "greater than or equal to" in terms of ES
/*
* Runtime detection of OMAP3 features
*/
-extern u32 omap3_features;
+extern u32 omap_features;
#define OMAP3_HAS_L2CACHE BIT(0)
#define OMAP3_HAS_IVA BIT(1)
#define OMAP3_HAS_192MHZ_CLK BIT(5)
#define OMAP3_HAS_IO_WAKEUP BIT(6)
#define OMAP3_HAS_SDRC BIT(7)
+#define OMAP4_HAS_MPU_1GHZ BIT(8)
+#define OMAP4_HAS_MPU_1_2GHZ BIT(9)
+#define OMAP4_HAS_MPU_1_5GHZ BIT(10)
+
#define OMAP3_HAS_FEATURE(feat,flag) \
static inline unsigned int omap3_has_ ##feat(void) \
{ \
- return (omap3_features & OMAP3_HAS_ ##flag); \
+ return omap_features & OMAP3_HAS_ ##flag; \
} \
OMAP3_HAS_FEATURE(l2cache, L2CACHE)
OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
OMAP3_HAS_FEATURE(sdrc, SDRC)
+/*
+ * Runtime detection of OMAP4 features
+ */
+extern u32 omap_features;
+
+#define OMAP4_HAS_FEATURE(feat, flag) \
+static inline unsigned int omap4_has_ ##feat(void) \
+{ \
+ return omap_features & OMAP4_HAS_ ##flag; \
+} \
+
+OMAP4_HAS_FEATURE(mpu_1ghz, MPU_1GHZ)
+OMAP4_HAS_FEATURE(mpu_1_2ghz, MPU_1_2GHZ)
+OMAP4_HAS_FEATURE(mpu_1_5ghz, MPU_1_5GHZ)
+
#endif
projects / firefly-linux-kernel-4.4.55.git / commitdiff