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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 20:30:52 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 20:30:52 +0400
commitb324c67d4800e59171f48d9ddab6cbfb59110482 (patch)
treea16509a710e76fa24c01514b60aed06b7db13716 /arch/arm/mach-spear6xx/clock.c
parent8dca6010d44cc722a94dc6da96560f9083dac782 (diff)
parent396d81cd0fe12ce5d1f6d159f093f9315d2837bc (diff)
downloadlinux-b324c67d4800e59171f48d9ddab6cbfb59110482.tar.xz
Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull device tree conversions for arm-soc, part 1, from Olof Johansson: "The spear3xx, lpc32xx, shmobile and mmp platforms are joining the game of booting using device trees, which is a great step forward for them. at91 and spear have pretty much completed this process with a huge amount of work being put into at91. The other platforms are continuing the process. We finally start to see the payback on this investment, as new machines are getting supported purely by adding a .dts source file that can be completely independent of the kernel source." Fix up trivial conflict in arch/arm/Kconfig * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits) ARM: at91: Add ADC driver to at91sam9260/at91sam9g20 dtsi files arm/dts: omap4-panda: Add LEDs support arm/dts: omap4-sdp: Add LEDs support arm/dts: twl4030: Add twl4030-gpio node OMAP4: devices: Do not create mcpdm device if the dtb has been provided OMAP4: devices: Do not create dmic device if the dtb has been provided Documentation: update docs for mmp dt ARM: dts: refresh dts file for arch mmp ARM: mmp: support pxa910 with device tree ARM: mmp: support mmp2 with device tree gpio: pxa: parse gpio from DTS file ARM: mmp: support DT in timer ARM: mmp: support DT in irq ARM: mmp: append CONFIG_MACH_MMP2_DT ARM: mmp: fix build issue on mmp with device tree ARM: ux500: Enable PRCMU Timer 4 (clocksource) for Device Tree ARM: ux500: Disable SMSC911x platform code registration when DT is enabled ARM: ux500: Fork cpu-db8500 platform_devs for sequential DT enablement ARM: ux500: Do not attempt to register non-existent i2c devices on Snowball ARM: SPEAr3xx: Correct keyboard data passed from DT ...
Diffstat (limited to 'arch/arm/mach-spear6xx/clock.c')
-rw-r--r--arch/arm/mach-spear6xx/clock.c186
1 files changed, 146 insertions, 40 deletions
diff --git a/arch/arm/mach-spear6xx/clock.c b/arch/arm/mach-spear6xx/clock.c
index a86499a8a15f..bef77d43db87 100644
--- a/arch/arm/mach-spear6xx/clock.c
+++ b/arch/arm/mach-spear6xx/clock.c
@@ -16,6 +16,112 @@
#include <linux/kernel.h>
#include <plat/clock.h>
#include <mach/misc_regs.h>
+#include <mach/spear.h>
+
+#define PLL1_CTR (MISC_BASE + 0x008)
+#define PLL1_FRQ (MISC_BASE + 0x00C)
+#define PLL1_MOD (MISC_BASE + 0x010)
+#define PLL2_CTR (MISC_BASE + 0x014)
+/* PLL_CTR register masks */
+#define PLL_ENABLE 2
+#define PLL_MODE_SHIFT 4
+#define PLL_MODE_MASK 0x3
+#define PLL_MODE_NORMAL 0
+#define PLL_MODE_FRACTION 1
+#define PLL_MODE_DITH_DSB 2
+#define PLL_MODE_DITH_SSB 3
+
+#define PLL2_FRQ (MISC_BASE + 0x018)
+/* PLL FRQ register masks */
+#define PLL_DIV_N_SHIFT 0
+#define PLL_DIV_N_MASK 0xFF
+#define PLL_DIV_P_SHIFT 8
+#define PLL_DIV_P_MASK 0x7
+#define PLL_NORM_FDBK_M_SHIFT 24
+#define PLL_NORM_FDBK_M_MASK 0xFF
+#define PLL_DITH_FDBK_M_SHIFT 16
+#define PLL_DITH_FDBK_M_MASK 0xFFFF
+
+#define PLL2_MOD (MISC_BASE + 0x01C)
+#define PLL_CLK_CFG (MISC_BASE + 0x020)
+#define CORE_CLK_CFG (MISC_BASE + 0x024)
+/* CORE CLK CFG register masks */
+#define PLL_HCLK_RATIO_SHIFT 10
+#define PLL_HCLK_RATIO_MASK 0x3
+#define HCLK_PCLK_RATIO_SHIFT 8
+#define HCLK_PCLK_RATIO_MASK 0x3
+
+#define PERIP_CLK_CFG (MISC_BASE + 0x028)
+/* PERIP_CLK_CFG register masks */
+#define CLCD_CLK_SHIFT 2
+#define CLCD_CLK_MASK 0x3
+#define UART_CLK_SHIFT 4
+#define UART_CLK_MASK 0x1
+#define FIRDA_CLK_SHIFT 5
+#define FIRDA_CLK_MASK 0x3
+#define GPT0_CLK_SHIFT 8
+#define GPT1_CLK_SHIFT 10
+#define GPT2_CLK_SHIFT 11
+#define GPT3_CLK_SHIFT 12
+#define GPT_CLK_MASK 0x1
+#define AUX_CLK_PLL3_VAL 0
+#define AUX_CLK_PLL1_VAL 1
+
+#define PERIP1_CLK_ENB (MISC_BASE + 0x02C)
+/* PERIP1_CLK_ENB register masks */
+#define UART0_CLK_ENB 3
+#define UART1_CLK_ENB 4
+#define SSP0_CLK_ENB 5
+#define SSP1_CLK_ENB 6
+#define I2C_CLK_ENB 7
+#define JPEG_CLK_ENB 8
+#define FSMC_CLK_ENB 9
+#define FIRDA_CLK_ENB 10
+#define GPT2_CLK_ENB 11
+#define GPT3_CLK_ENB 12
+#define GPIO2_CLK_ENB 13
+#define SSP2_CLK_ENB 14
+#define ADC_CLK_ENB 15
+#define GPT1_CLK_ENB 11
+#define RTC_CLK_ENB 17
+#define GPIO1_CLK_ENB 18
+#define DMA_CLK_ENB 19
+#define SMI_CLK_ENB 21
+#define CLCD_CLK_ENB 22
+#define GMAC_CLK_ENB 23
+#define USBD_CLK_ENB 24
+#define USBH0_CLK_ENB 25
+#define USBH1_CLK_ENB 26
+
+#define PRSC1_CLK_CFG (MISC_BASE + 0x044)
+#define PRSC2_CLK_CFG (MISC_BASE + 0x048)
+#define PRSC3_CLK_CFG (MISC_BASE + 0x04C)
+/* gpt synthesizer register masks */
+#define GPT_MSCALE_SHIFT 0
+#define GPT_MSCALE_MASK 0xFFF
+#define GPT_NSCALE_SHIFT 12
+#define GPT_NSCALE_MASK 0xF
+
+#define AMEM_CLK_CFG (MISC_BASE + 0x050)
+#define EXPI_CLK_CFG (MISC_BASE + 0x054)
+#define CLCD_CLK_SYNT (MISC_BASE + 0x05C)
+#define FIRDA_CLK_SYNT (MISC_BASE + 0x060)
+#define UART_CLK_SYNT (MISC_BASE + 0x064)
+#define GMAC_CLK_SYNT (MISC_BASE + 0x068)
+#define RAS1_CLK_SYNT (MISC_BASE + 0x06C)
+#define RAS2_CLK_SYNT (MISC_BASE + 0x070)
+#define RAS3_CLK_SYNT (MISC_BASE + 0x074)
+#define RAS4_CLK_SYNT (MISC_BASE + 0x078)
+/* aux clk synthesiser register masks for irda to ras4 */
+#define AUX_SYNT_ENB 31
+#define AUX_EQ_SEL_SHIFT 30
+#define AUX_EQ_SEL_MASK 1
+#define AUX_EQ1_SEL 0
+#define AUX_EQ2_SEL 1
+#define AUX_XSCALE_SHIFT 16
+#define AUX_XSCALE_MASK 0xFFF
+#define AUX_YSCALE_SHIFT 0
+#define AUX_YSCALE_MASK 0xFFF
/* root clks */
/* 32 KHz oscillator clock */
@@ -623,53 +729,53 @@ static struct clk dummy_apb_pclk;
/* array of all spear 6xx clock lookups */
static struct clk_lookup spear_clk_lookups[] = {
- { .con_id = "apb_pclk", .clk = &dummy_apb_pclk},
+ CLKDEV_INIT(NULL, "apb_pclk", &dummy_apb_pclk),
/* root clks */
- { .con_id = "osc_32k_clk", .clk = &osc_32k_clk},
- { .con_id = "osc_30m_clk", .clk = &osc_30m_clk},
+ CLKDEV_INIT(NULL, "osc_32k_clk", &osc_32k_clk),
+ CLKDEV_INIT(NULL, "osc_30m_clk", &osc_30m_clk),
/* clock derived from 32 KHz os clk */
- { .dev_id = "rtc-spear", .clk = &rtc_clk},
+ CLKDEV_INIT("rtc-spear", NULL, &rtc_clk),
/* clock derived from 30 MHz os clk */
- { .con_id = "pll1_clk", .clk = &pll1_clk},
- { .con_id = "pll3_48m_clk", .clk = &pll3_48m_clk},
- { .dev_id = "wdt", .clk = &wdt_clk},
+ CLKDEV_INIT(NULL, "pll1_clk", &pll1_clk),
+ CLKDEV_INIT(NULL, "pll3_48m_clk", &pll3_48m_clk),
+ CLKDEV_INIT("wdt", NULL, &wdt_clk),
/* clock derived from pll1 clk */
- { .con_id = "cpu_clk", .clk = &cpu_clk},
- { .con_id = "ahb_clk", .clk = &ahb_clk},
- { .con_id = "uart_synth_clk", .clk = &uart_synth_clk},
- { .con_id = "firda_synth_clk", .clk = &firda_synth_clk},
- { .con_id = "clcd_synth_clk", .clk = &clcd_synth_clk},
- { .con_id = "gpt0_synth_clk", .clk = &gpt0_synth_clk},
- { .con_id = "gpt2_synth_clk", .clk = &gpt2_synth_clk},
- { .con_id = "gpt3_synth_clk", .clk = &gpt3_synth_clk},
- { .dev_id = "d0000000.serial", .clk = &uart0_clk},
- { .dev_id = "d0080000.serial", .clk = &uart1_clk},
- { .dev_id = "firda", .clk = &firda_clk},
- { .dev_id = "clcd", .clk = &clcd_clk},
- { .dev_id = "gpt0", .clk = &gpt0_clk},
- { .dev_id = "gpt1", .clk = &gpt1_clk},
- { .dev_id = "gpt2", .clk = &gpt2_clk},
- { .dev_id = "gpt3", .clk = &gpt3_clk},
+ CLKDEV_INIT(NULL, "cpu_clk", &cpu_clk),
+ CLKDEV_INIT(NULL, "ahb_clk", &ahb_clk),
+ CLKDEV_INIT(NULL, "uart_synth_clk", &uart_synth_clk),
+ CLKDEV_INIT(NULL, "firda_synth_clk", &firda_synth_clk),
+ CLKDEV_INIT(NULL, "clcd_synth_clk", &clcd_synth_clk),
+ CLKDEV_INIT(NULL, "gpt0_synth_clk", &gpt0_synth_clk),
+ CLKDEV_INIT(NULL, "gpt2_synth_clk", &gpt2_synth_clk),
+ CLKDEV_INIT(NULL, "gpt3_synth_clk", &gpt3_synth_clk),
+ CLKDEV_INIT("d0000000.serial", NULL, &uart0_clk),
+ CLKDEV_INIT("d0080000.serial", NULL, &uart1_clk),
+ CLKDEV_INIT("firda", NULL, &firda_clk),
+ CLKDEV_INIT("clcd", NULL, &clcd_clk),
+ CLKDEV_INIT("gpt0", NULL, &gpt0_clk),
+ CLKDEV_INIT("gpt1", NULL, &gpt1_clk),
+ CLKDEV_INIT("gpt2", NULL, &gpt2_clk),
+ CLKDEV_INIT("gpt3", NULL, &gpt3_clk),
/* clock derived from pll3 clk */
- { .dev_id = "designware_udc", .clk = &usbd_clk},
- { .con_id = "usbh.0_clk", .clk = &usbh0_clk},
- { .con_id = "usbh.1_clk", .clk = &usbh1_clk},
+ CLKDEV_INIT("designware_udc", NULL, &usbd_clk),
+ CLKDEV_INIT(NULL, "usbh.0_clk", &usbh0_clk),
+ CLKDEV_INIT(NULL, "usbh.1_clk", &usbh1_clk),
/* clock derived from ahb clk */
- { .con_id = "apb_clk", .clk = &apb_clk},
- { .dev_id = "d0200000.i2c", .clk = &i2c_clk},
- { .dev_id = "dma", .clk = &dma_clk},
- { .dev_id = "jpeg", .clk = &jpeg_clk},
- { .dev_id = "gmac", .clk = &gmac_clk},
- { .dev_id = "smi", .clk = &smi_clk},
- { .dev_id = "fsmc-nand", .clk = &fsmc_clk},
+ CLKDEV_INIT(NULL, "apb_clk", &apb_clk),
+ CLKDEV_INIT("d0200000.i2c", NULL, &i2c_clk),
+ CLKDEV_INIT("fc400000.dma", NULL, &dma_clk),
+ CLKDEV_INIT("jpeg", NULL, &jpeg_clk),
+ CLKDEV_INIT("gmac", NULL, &gmac_clk),
+ CLKDEV_INIT("fc000000.flash", NULL, &smi_clk),
+ CLKDEV_INIT("d1800000.flash", NULL, &fsmc_clk),
/* clock derived from apb clk */
- { .dev_id = "adc", .clk = &adc_clk},
- { .dev_id = "ssp-pl022.0", .clk = &ssp0_clk},
- { .dev_id = "ssp-pl022.1", .clk = &ssp1_clk},
- { .dev_id = "ssp-pl022.2", .clk = &ssp2_clk},
- { .dev_id = "f0100000.gpio", .clk = &gpio0_clk},
- { .dev_id = "fc980000.gpio", .clk = &gpio1_clk},
- { .dev_id = "d8100000.gpio", .clk = &gpio2_clk},
+ CLKDEV_INIT("adc", NULL, &adc_clk),
+ CLKDEV_INIT("ssp-pl022.0", NULL, &ssp0_clk),
+ CLKDEV_INIT("ssp-pl022.1", NULL, &ssp1_clk),
+ CLKDEV_INIT("ssp-pl022.2", NULL, &ssp2_clk),
+ CLKDEV_INIT("f0100000.gpio", NULL, &gpio0_clk),
+ CLKDEV_INIT("fc980000.gpio", NULL, &gpio1_clk),
+ CLKDEV_INIT("d8100000.gpio", NULL, &gpio2_clk),
};
void __init spear6xx_clk_init(void)