[PATCH v2 2/3] ARM: pxa: add pxa3xx architecture
Robert Jarzmik
robert.jarzmik at free.fr
Thu Jan 8 23:36:42 PST 2015
Add the pxa3xx architecture, for pxa300, pxa310 and pxa320 SoCs.
This includes :
- the registers
- the cpu type
- the reset source handling
- a minimal set of clocks
- pin control definitions
In this last case, the big mfp-pxaxxx.h files were dropped, forcing
board developers to use MFP_LPM_* macros cunningly.
Signed-off-by: Robert Jarzmik <robert.jarzmik at free.fr>
---
Since v1: mfp became mfp-pxa3xx.c
ifdefs were mostly killed by grouping SoC specific functions
in SoC specific source files
---
arch/arm/cpu/Kconfig | 6 +
arch/arm/mach-pxa/Kconfig | 19 ++
arch/arm/mach-pxa/Makefile | 1 +
arch/arm/mach-pxa/common.c | 2 +-
arch/arm/mach-pxa/include/mach/clock.h | 1 +
arch/arm/mach-pxa/include/mach/hardware.h | 18 +-
arch/arm/mach-pxa/include/mach/mfp-pxa3xx.h | 25 ++
arch/arm/mach-pxa/include/mach/pxa-regs.h | 4 +-
arch/arm/mach-pxa/include/mach/pxa3xx-regs.h | 224 ++++++++++++++++++
arch/arm/mach-pxa/include/plat/mfp.h | 7 +-
arch/arm/mach-pxa/mfp-pxa3xx.c | 338 +++++++++++++++++++++++++++
arch/arm/mach-pxa/pxa3xx.c | 59 +++++
arch/arm/mach-pxa/sleep.S | 7 +
arch/arm/mach-pxa/speed-pxa3xx.c | 33 +++
14 files changed, 738 insertions(+), 6 deletions(-)
create mode 100644 arch/arm/mach-pxa/include/mach/mfp-pxa3xx.h
create mode 100644 arch/arm/mach-pxa/include/mach/pxa3xx-regs.h
create mode 100644 arch/arm/mach-pxa/mfp-pxa3xx.c
create mode 100644 arch/arm/mach-pxa/pxa3xx.c
create mode 100644 arch/arm/mach-pxa/speed-pxa3xx.c
diff --git a/arch/arm/cpu/Kconfig b/arch/arm/cpu/Kconfig
index 8934df0..4f5d9b6 100644
--- a/arch/arm/cpu/Kconfig
+++ b/arch/arm/cpu/Kconfig
@@ -69,6 +69,12 @@ config CPU_V7
bool
select CPU_32v7
+config CPU_XSC3
+ bool
+ select CPU_32v4T
+ help
+ Select code specific to PXA3xx variants
+
# Xscale PXA25x, PXA27x
config CPU_XSCALE
bool
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index cdec1b7..3a728ed 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -11,6 +11,10 @@ config ARCH_PXA2XX
bool
select CPU_XSCALE
+config ARCH_PXA3XX
+ bool
+ select CPU_XSC3
+
choice
prompt "Intel/Marvell PXA Processor"
@@ -18,6 +22,9 @@ config ARCH_PXA27X
bool "PXA27x"
select ARCH_PXA2XX
+config ARCH_PXA3XX
+ bool "PXA3xx"
+
endchoice
# ----------------------------------------------------------
@@ -55,4 +62,16 @@ endif
# ----------------------------------------------------------
+if ARCH_PXA3XX
+
+choice
+ prompt "PXA3xx Board Type"
+ bool
+
+endchoice
+
+endif
+
+# ----------------------------------------------------------
+
endif
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index a09c060..e5ffe06 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -6,3 +6,4 @@ obj-y += sleep.o
obj-$(CONFIG_ARCH_PXA2XX) += mfp-pxa2xx.o pxa2xx.o
obj-$(CONFIG_ARCH_PXA27X) += speed-pxa27x.o
+obj-$(CONFIG_ARCH_PXA3XX) += speed-pxa3xx.o mfp-pxa3xx.o pxa3xx.o
diff --git a/arch/arm/mach-pxa/common.c b/arch/arm/mach-pxa/common.c
index 1ed7931..2c27d81 100644
--- a/arch/arm/mach-pxa/common.c
+++ b/arch/arm/mach-pxa/common.c
@@ -32,7 +32,7 @@ extern void pxa_clear_reset_source(void);
void reset_cpu(ulong addr)
{
/* Clear last reset source */
- RCSR = RCSR_GPR | RCSR_SMR | RCSR_WDR | RCSR_HWR;
+ pxa_clear_reset_source();
/* Initialize the watchdog and let it fire */
writel(OWER_WME, OWER);
diff --git a/arch/arm/mach-pxa/include/mach/clock.h b/arch/arm/mach-pxa/include/mach/clock.h
index f86152f..40f6223 100644
--- a/arch/arm/mach-pxa/include/mach/clock.h
+++ b/arch/arm/mach-pxa/include/mach/clock.h
@@ -14,6 +14,7 @@
unsigned long pxa_get_uartclk(void);
unsigned long pxa_get_mmcclk(void);
unsigned long pxa_get_lcdclk(void);
+unsigned long pxa_get_nandclk(void);
unsigned long pxa_get_pwmclk(void);
#endif /* !__MACH_CLOCK_H */
diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h
index c5f40d7..902d11d 100644
--- a/arch/arm/mach-pxa/include/mach/hardware.h
+++ b/arch/arm/mach-pxa/include/mach/hardware.h
@@ -13,7 +13,7 @@
#ifdef CONFIG_ARCH_PXA2XX
#define cpu_is_pxa2xx() (1)
#else
-#define cpi_is_pxa2xx() (0)
+#define cpu_is_pxa2xx() (0)
#endif
#ifdef CONFIG_ARCH_PXA25X
@@ -28,6 +28,22 @@
#define cpu_is_pxa27x() (0)
#endif
+#ifdef CONFIG_ARCH_PXA3XX
+#define cpu_is_pxa3xx() (1)
+# ifdef CONFIG_ARCH_PXA320
+# define cpu_is_pxa320() (1)
+# else
+# define cpu_is_pxa320() (0)
+# endif
+# ifdef CONFIG_ARCH_PXA310
+# define cpu_is_pxa310() (1)
+# else
+# define cpu_is_pxa310() (0)
+# endif
+#else
+#define cpu_is_pxa3xx() (0)
+#endif
+
#ifdef __ASSEMBLY__
#define __REG(x) (x)
#endif
diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa3xx.h b/arch/arm/mach-pxa/include/mach/mfp-pxa3xx.h
new file mode 100644
index 0000000..7bdd44d
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/mfp-pxa3xx.h
@@ -0,0 +1,25 @@
+#ifndef __ASM_ARCH_MFP_PXA3XX_H
+#define __ASM_ARCH_MFP_PXA3XX_H
+
+#include <plat/mfp.h>
+
+#define MFPR_BASE (0x40e10000)
+
+/* NOTE: usage of these two functions is not recommended,
+ * use pxa3xx_mfp_config() instead.
+ */
+static inline unsigned long pxa3xx_mfp_read(int mfp)
+{
+ return mfp_read(mfp);
+}
+
+static inline void pxa3xx_mfp_write(int mfp, unsigned long val)
+{
+ mfp_write(mfp, val);
+}
+
+static inline void pxa3xx_mfp_config(unsigned long *mfp_cfg, int num)
+{
+ mfp_config(mfp_cfg, num);
+}
+#endif /* __ASM_ARCH_MFP_PXA3XX_H */
diff --git a/arch/arm/mach-pxa/include/mach/pxa-regs.h b/arch/arm/mach-pxa/include/mach/pxa-regs.h
index c32d2ae..5203d88 100644
--- a/arch/arm/mach-pxa/include/mach/pxa-regs.h
+++ b/arch/arm/mach-pxa/include/mach/pxa-regs.h
@@ -24,8 +24,10 @@
# include <mach/pxa2xx-regs.h>
#endif
-#ifdef CONFIG_ARCH_PXA27X
+#if defined(CONFIG_ARCH_PXA27X)
# include <mach/pxa27x-regs.h>
+#elif defined(CONFIG_ARCH_PXA3XX)
+# include <mach/pxa3xx-regs.h>
#else
# error "unknown PXA soc type"
#endif
diff --git a/arch/arm/mach-pxa/include/mach/pxa3xx-regs.h b/arch/arm/mach-pxa/include/mach/pxa3xx-regs.h
new file mode 100644
index 0000000..373711d
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/pxa3xx-regs.h
@@ -0,0 +1,224 @@
+/*
+ * arch/arm/mach-pxa/include/mach/pxa3xx-regs.h
+ *
+ * PXA3xx specific register definitions
+ *
+ * Copyright (C) 2007 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __MACH_PXA3XX_REGS
+#define __MACH_PXA3XX_REGS
+
+#include <mach/hardware.h>
+
+/*
+ * Oscillator Configuration Register (OSCC)
+ */
+#define OSCC __REG(0x41350000) /* Oscillator Configuration Register */
+
+#define OSCC_PEN (1 << 11) /* 13MHz POUT */
+
+
+/*
+ * Service Power Management Unit (MPMU)
+ */
+#define PMCR __REG(0x40F50000) /* Power Manager Control Register */
+#define PSR __REG(0x40F50004) /* Power Manager S2 Status Register */
+#define PSPR __REG(0x40F50008) /* Power Manager Scratch Pad Register */
+#define PCFR __REG(0x40F5000C) /* Power Manager General Configuration Register */
+#define PWER __REG(0x40F50010) /* Power Manager Wake-up Enable Register */
+#define PWSR __REG(0x40F50014) /* Power Manager Wake-up Status Register */
+#define PECR __REG(0x40F50018) /* Power Manager EXT_WAKEUP[1:0] Control Register */
+#define DCDCSR __REG(0x40F50080) /* DC-DC Controller Status Register */
+#define PVCR __REG(0x40F50100) /* Power Manager Voltage Change Control Register */
+#define PCMD(x) __REG(0x40F50110 + ((x) << 2))
+
+/*
+ * Slave Power Management Unit
+ */
+#define ASCR __REG(0x40f40000) /* Application Subsystem Power Status/Configuration */
+#define ARSR __REG(0x40f40004) /* Application Subsystem Reset Status */
+#define AD3ER __REG(0x40f40008) /* Application Subsystem Wake-Up from D3 Enable */
+#define AD3SR __REG(0x40f4000c) /* Application Subsystem Wake-Up from D3 Status */
+#define AD2D0ER __REG(0x40f40010) /* Application Subsystem Wake-Up from D2 to D0 Enable */
+#define AD2D0SR __REG(0x40f40014) /* Application Subsystem Wake-Up from D2 to D0 Status */
+#define AD2D1ER __REG(0x40f40018) /* Application Subsystem Wake-Up from D2 to D1 Enable */
+#define AD2D1SR __REG(0x40f4001c) /* Application Subsystem Wake-Up from D2 to D1 Status */
+#define AD1D0ER __REG(0x40f40020) /* Application Subsystem Wake-Up from D1 to D0 Enable */
+#define AD1D0SR __REG(0x40f40024) /* Application Subsystem Wake-Up from D1 to D0 Status */
+#define AGENP __REG(0x40f4002c) /* Application Subsystem General Purpose */
+#define AD3R __REG(0x40f40030) /* Application Subsystem D3 Configuration */
+#define AD2R __REG(0x40f40034) /* Application Subsystem D2 Configuration */
+#define AD1R __REG(0x40f40038) /* Application Subsystem D1 Configuration */
+
+/*
+ * Application Subsystem Configuration bits.
+ */
+#define ASCR_RDH (1 << 31)
+#define ASCR_D1S (1 << 2)
+#define ASCR_D2S (1 << 1)
+#define ASCR_D3S (1 << 0)
+
+/*
+ * Application Reset Status bits.
+ */
+#define ARSR_GPR (1 << 3)
+#define ARSR_LPMR (1 << 2)
+#define ARSR_WDT (1 << 1)
+#define ARSR_HWR (1 << 0)
+
+/*
+ * Application Subsystem Wake-Up bits.
+ */
+#define ADXER_WRTC (1 << 31) /* RTC */
+#define ADXER_WOST (1 << 30) /* OS Timer */
+#define ADXER_WTSI (1 << 29) /* Touchscreen */
+#define ADXER_WUSBH (1 << 28) /* USB host */
+#define ADXER_WUSB2 (1 << 26) /* USB client 2.0 */
+#define ADXER_WMSL0 (1 << 24) /* MSL port 0*/
+#define ADXER_WDMUX3 (1 << 23) /* USB EDMUX3 */
+#define ADXER_WDMUX2 (1 << 22) /* USB EDMUX2 */
+#define ADXER_WKP (1 << 21) /* Keypad */
+#define ADXER_WUSIM1 (1 << 20) /* USIM Port 1 */
+#define ADXER_WUSIM0 (1 << 19) /* USIM Port 0 */
+#define ADXER_WOTG (1 << 16) /* USBOTG input */
+#define ADXER_MFP_WFLASH (1 << 15) /* MFP: Data flash busy */
+#define ADXER_MFP_GEN12 (1 << 14) /* MFP: MMC3/GPIO/OST inputs */
+#define ADXER_MFP_WMMC2 (1 << 13) /* MFP: MMC2 */
+#define ADXER_MFP_WMMC1 (1 << 12) /* MFP: MMC1 */
+#define ADXER_MFP_WI2C (1 << 11) /* MFP: I2C */
+#define ADXER_MFP_WSSP4 (1 << 10) /* MFP: SSP4 */
+#define ADXER_MFP_WSSP3 (1 << 9) /* MFP: SSP3 */
+#define ADXER_MFP_WMAXTRIX (1 << 8) /* MFP: matrix keypad */
+#define ADXER_MFP_WUART3 (1 << 7) /* MFP: UART3 */
+#define ADXER_MFP_WUART2 (1 << 6) /* MFP: UART2 */
+#define ADXER_MFP_WUART1 (1 << 5) /* MFP: UART1 */
+#define ADXER_MFP_WSSP2 (1 << 4) /* MFP: SSP2 */
+#define ADXER_MFP_WSSP1 (1 << 3) /* MFP: SSP1 */
+#define ADXER_MFP_WAC97 (1 << 2) /* MFP: AC97 */
+#define ADXER_WEXTWAKE1 (1 << 1) /* External Wake 1 */
+#define ADXER_WEXTWAKE0 (1 << 0) /* External Wake 0 */
+
+/*
+ * AD3R/AD2R/AD1R bits. R2-R5 are only defined for PXA320.
+ */
+#define ADXR_L2 (1 << 8)
+#define ADXR_R5 (1 << 5)
+#define ADXR_R4 (1 << 4)
+#define ADXR_R3 (1 << 3)
+#define ADXR_R2 (1 << 2)
+#define ADXR_R1 (1 << 1)
+#define ADXR_R0 (1 << 0)
+
+/*
+ * Values for PWRMODE CP15 register
+ */
+#define PXA3xx_PM_S3D4C4 0x07 /* aka deep sleep */
+#define PXA3xx_PM_S2D3C4 0x06 /* aka sleep */
+#define PXA3xx_PM_S0D2C2 0x03 /* aka standby */
+#define PXA3xx_PM_S0D1C2 0x02 /* aka LCD refresh */
+#define PXA3xx_PM_S0D0C1 0x01
+
+/*
+ * Application Subsystem Clock
+ */
+#define ACCR __REG(0x41340000) /* Application Subsystem Clock Configuration Register */
+#define ACSR __REG(0x41340004) /* Application Subsystem Clock Status Register */
+#define AICSR __REG(0x41340008) /* Application Subsystem Interrupt Control/Status Register */
+#define CKENA __REG(0x4134000C) /* A Clock Enable Register */
+#define CKENB __REG(0x41340010) /* B Clock Enable Register */
+#define CKENC __REG(0x41340024) /* C Clock Enable Register */
+#define AC97_DIV __REG(0x41340014) /* AC97 clock divisor value register */
+
+#define ACCR_XPDIS (1 << 31) /* Core PLL Output Disable */
+#define ACCR_SPDIS (1 << 30) /* System PLL Output Disable */
+#define ACCR_D0CS (1 << 26) /* D0 Mode Clock Select */
+#define ACCR_PCCE (1 << 11) /* Power Mode Change Clock Enable */
+#define ACCR_DDR_D0CS (1 << 7) /* DDR SDRAM clock frequency in D0CS (PXA31x only) */
+
+#define ACCR_SMCFS_MASK (0x7 << 23) /* Static Memory Controller Frequency Select */
+#define ACCR_SFLFS_MASK (0x3 << 18) /* Frequency Select for Internal Memory Controller */
+#define ACCR_XSPCLK_MASK (0x3 << 16) /* Core Frequency during Frequency Change */
+#define ACCR_HSS_MASK (0x3 << 14) /* System Bus-Clock Frequency Select */
+#define ACCR_DMCFS_MASK (0x3 << 12) /* Dynamic Memory Controller Clock Frequency Select */
+#define ACCR_XN_MASK (0x7 << 8) /* Core PLL Turbo-Mode-to-Run-Mode Ratio */
+#define ACCR_XL_MASK (0x1f) /* Core PLL Run-Mode-to-Oscillator Ratio */
+
+#define ACCR_SMCFS(x) (((x) & 0x7) << 23)
+#define ACCR_SFLFS(x) (((x) & 0x3) << 18)
+#define ACCR_XSPCLK(x) (((x) & 0x3) << 16)
+#define ACCR_HSS(x) (((x) & 0x3) << 14)
+#define ACCR_DMCFS(x) (((x) & 0x3) << 12)
+#define ACCR_XN(x) (((x) & 0x7) << 8)
+#define ACCR_XL(x) ((x) & 0x1f)
+
+/*
+ * Clock Enable Bit
+ */
+#define CKEN_LCD 1 /* < LCD Clock Enable */
+#define CKEN_USBH 2 /* < USB host clock enable */
+#define CKEN_CAMERA 3 /* < Camera interface clock enable */
+#define CKEN_NAND 4 /* < NAND Flash Controller Clock Enable */
+#define CKEN_USB2 6 /* < USB 2.0 client clock enable. */
+#define CKEN_DMC 8 /* < Dynamic Memory Controller clock enable */
+#define CKEN_SMC 9 /* < Static Memory Controller clock enable */
+#define CKEN_ISC 10 /* < Internal SRAM Controller clock enable */
+#define CKEN_BOOT 11 /* < Boot rom clock enable */
+#define CKEN_MMC1 12 /* < MMC1 Clock enable */
+#define CKEN_MMC2 13 /* < MMC2 clock enable */
+#define CKEN_KEYPAD 14 /* < Keypand Controller Clock Enable */
+#define CKEN_CIR 15 /* < Consumer IR Clock Enable */
+#define CKEN_USIM0 17 /* < USIM[0] Clock Enable */
+#define CKEN_USIM1 18 /* < USIM[1] Clock Enable */
+#define CKEN_TPM 19 /* < TPM clock enable */
+#define CKEN_UDC 20 /* < UDC clock enable */
+#define CKEN_BTUART 21 /* < BTUART clock enable */
+#define CKEN_FFUART 22 /* < FFUART clock enable */
+#define CKEN_STUART 23 /* < STUART clock enable */
+#define CKEN_AC97 24 /* < AC97 clock enable */
+#define CKEN_TOUCH 25 /* < Touch screen Interface Clock Enable */
+#define CKEN_SSP1 26 /* < SSP1 clock enable */
+#define CKEN_SSP2 27 /* < SSP2 clock enable */
+#define CKEN_SSP3 28 /* < SSP3 clock enable */
+#define CKEN_SSP4 29 /* < SSP4 clock enable */
+#define CKEN_MSL0 30 /* < MSL0 clock enable */
+#define CKEN_PWM0 32 /* < PWM[0] clock enable */
+#define CKEN_PWM1 33 /* < PWM[1] clock enable */
+#define CKEN_I2C 36 /* < I2C clock enable */
+#define CKEN_INTC 38 /* < Interrupt controller clock enable */
+#define CKEN_GPIO 39 /* < GPIO clock enable */
+#define CKEN_1WIRE 40 /* < 1-wire clock enable */
+#define CKEN_HSIO2 41 /* < HSIO2 clock enable */
+#define CKEN_MINI_IM 48 /* < Mini-IM */
+#define CKEN_MINI_LCD 49 /* < Mini LCD */
+
+#define CKEN_MMC3 5 /* < MMC3 Clock Enable */
+#define CKEN_MVED 43 /* < MVED clock enable */
+
+/* Note: GCU clock enable bit differs on PXA300/PXA310 and PXA320 */
+#define CKEN_PXA300_GCU 42 /* Graphics controller clock enable */
+#define CKEN_PXA320_GCU 7 /* Graphics controller clock enable */
+
+/*
+ * Static Memory Controller
+ */
+#define MSC0 __REG(0x4a000008) /* Static Memory Control 0 */
+#define MSC1 __REG(0x4a00000c) /* Static Memory Control 1 */
+#define MECR __REG(0x4a000014) /* Expansion Memory Configuration */
+#define SXCNFG __REG(0x4a00001c) /* Synchronous Static Memory Control */
+#define MCMEM0 __REG(0x4a000028) /* Expansion Memory Timing */
+#define MCATT0 __REG(0x4a000030) /* Expansion Memory Timing */
+#define MCIO0 __REG(0x4a000038) /* Expansion Memory Timing */
+#define MEMCLKCFG __REG(0x4a000068) /* Clock configuration */
+#define CSADRCFG0 __REG(0x4a000080) /* CS0 address configuration */
+#define CSADRCFG1 __REG(0x4a000084) /* CS1 address configuration */
+#define CSADRCFG2 __REG(0x4a000088) /* CS2 address configuration */
+#define CSADRCFG3 __REG(0x4a00008c) /* CS3 address configuration */
+#define CSADRCFGP __REG(0x4a000090) /* CSP address configuration */
+#define CSMSADRCFG __REG(0x4a0000a0) /* CSP address configuration */
+
+#endif /* !__MACH_PXA3XX_REGS */
diff --git a/arch/arm/mach-pxa/include/plat/mfp.h b/arch/arm/mach-pxa/include/plat/mfp.h
index 755b020..aedb956 100644
--- a/arch/arm/mach-pxa/include/plat/mfp.h
+++ b/arch/arm/mach-pxa/include/plat/mfp.h
@@ -416,7 +416,7 @@ typedef unsigned long mfp_cfg_t;
((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK | MFP_LPM_STATE_MASK)) |\
(MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv | MFP_LPM_##lpm))
-#if defined(CONFIG_PXA3xx) || defined(CONFIG_ARCH_MMP)
+#if defined(CONFIG_ARCH_PXA3XX)
/*
* each MFP pin will have a MFPR register, since the offset of the
* register varies between processors, the processor specific code
@@ -449,7 +449,7 @@ struct mfp_addr_map {
#define MFP_ADDR_END { MFP_PIN_INVALID, 0 }
-void __init mfp_init_base(unsigned long mfpr_base);
+void __init mfp_init_base(void __iomem *mfpr_base);
void __init mfp_init_addr(struct mfp_addr_map *map);
/*
@@ -463,6 +463,7 @@ void mfp_write(int mfp, unsigned long mfpr_val);
void mfp_config(unsigned long *mfp_cfgs, int num);
void mfp_config_run(void);
void mfp_config_lpm(void);
-#endif /* CONFIG_PXA3xx || CONFIG_ARCH_MMP */
+void mfp_init(void);
+#endif /* CONFIG_ARCH_PXA3XX */
#endif /* __ASM_PLAT_MFP_H */
diff --git a/arch/arm/mach-pxa/mfp-pxa3xx.c b/arch/arm/mach-pxa/mfp-pxa3xx.c
new file mode 100644
index 0000000..df49224
--- /dev/null
+++ b/arch/arm/mach-pxa/mfp-pxa3xx.c
@@ -0,0 +1,338 @@
+/*
+ * linux/arch/arm/plat-pxa/mfp.c
+ *
+ * Multi-Function Pin Support
+ *
+ * Copyright (C) 2007 Marvell Internation Ltd.
+ *
+ * 2007-08-21: eric miao <eric.miao at marvell.com>
+ * initial version
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <common.h>
+#include <init.h>
+#include <io.h>
+#include <mach/hardware.h>
+#include <mach/mfp-pxa3xx.h>
+#include <plat/mfp.h>
+
+#define MFPR_SIZE (PAGE_SIZE)
+
+/* MFPR register bit definitions */
+#define MFPR_PULL_SEL (0x1 << 15)
+#define MFPR_PULLUP_EN (0x1 << 14)
+#define MFPR_PULLDOWN_EN (0x1 << 13)
+#define MFPR_SLEEP_SEL (0x1 << 9)
+#define MFPR_SLEEP_OE_N (0x1 << 7)
+#define MFPR_EDGE_CLEAR (0x1 << 6)
+#define MFPR_EDGE_FALL_EN (0x1 << 5)
+#define MFPR_EDGE_RISE_EN (0x1 << 4)
+
+#define MFPR_SLEEP_DATA(x) ((x) << 8)
+#define MFPR_DRIVE(x) (((x) & 0x7) << 10)
+#define MFPR_AF_SEL(x) (((x) & 0x7) << 0)
+
+#define MFPR_EDGE_NONE (0)
+#define MFPR_EDGE_RISE (MFPR_EDGE_RISE_EN)
+#define MFPR_EDGE_FALL (MFPR_EDGE_FALL_EN)
+#define MFPR_EDGE_BOTH (MFPR_EDGE_RISE | MFPR_EDGE_FALL)
+
+/*
+ * Table that determines the low power modes outputs, with actual settings
+ * used in parentheses for don't-care values. Except for the float output,
+ * the configured driven and pulled levels match, so if there is a need for
+ * non-LPM pulled output, the same configuration could probably be used.
+ *
+ * Output value sleep_oe_n sleep_data pullup_en pulldown_en pull_sel
+ * (bit 7) (bit 8) (bit 14) (bit 13) (bit 15)
+ *
+ * Input 0 X(0) X(0) X(0) 0
+ * Drive 0 0 0 0 X(1) 0
+ * Drive 1 0 1 X(1) 0 0
+ * Pull hi (1) 1 X(1) 1 0 0
+ * Pull lo (0) 1 X(0) 0 1 0
+ * Z (float) 1 X(0) 0 0 0
+ */
+#define MFPR_LPM_INPUT (0)
+#define MFPR_LPM_DRIVE_LOW (MFPR_SLEEP_DATA(0) | MFPR_PULLDOWN_EN)
+#define MFPR_LPM_DRIVE_HIGH (MFPR_SLEEP_DATA(1) | MFPR_PULLUP_EN)
+#define MFPR_LPM_PULL_LOW (MFPR_LPM_DRIVE_LOW | MFPR_SLEEP_OE_N)
+#define MFPR_LPM_PULL_HIGH (MFPR_LPM_DRIVE_HIGH | MFPR_SLEEP_OE_N)
+#define MFPR_LPM_FLOAT (MFPR_SLEEP_OE_N)
+#define MFPR_LPM_MASK (0xe080)
+
+/*
+ * The pullup and pulldown state of the MFP pin at run mode is by default
+ * determined by the selected alternate function. In case that some buggy
+ * devices need to override this default behavior, the definitions below
+ * indicates the setting of corresponding MFPR bits
+ *
+ * Definition pull_sel pullup_en pulldown_en
+ * MFPR_PULL_NONE 0 0 0
+ * MFPR_PULL_LOW 1 0 1
+ * MFPR_PULL_HIGH 1 1 0
+ * MFPR_PULL_BOTH 1 1 1
+ * MFPR_PULL_FLOAT 1 0 0
+ */
+#define MFPR_PULL_NONE (0)
+#define MFPR_PULL_LOW (MFPR_PULL_SEL | MFPR_PULLDOWN_EN)
+#define MFPR_PULL_BOTH (MFPR_PULL_LOW | MFPR_PULLUP_EN)
+#define MFPR_PULL_HIGH (MFPR_PULL_SEL | MFPR_PULLUP_EN)
+#define MFPR_PULL_FLOAT (MFPR_PULL_SEL)
+
+/* mfp_spin_lock is used to ensure that MFP register configuration
+ * (most likely a read-modify-write operation) is atomic, and that
+ * mfp_table[] is consistent
+ */
+static void __iomem *mfpr_mmio_base;
+
+struct mfp_pin {
+ unsigned long config; /* -1 for not configured */
+ unsigned long mfpr_off; /* MFPRxx Register offset */
+ unsigned long mfpr_run; /* Run-Mode Register Value */
+ unsigned long mfpr_lpm; /* Low Power Mode Register Value */
+};
+
+static struct mfp_pin mfp_table[MFP_PIN_MAX];
+
+/* mapping of MFP_LPM_* definitions to MFPR_LPM_* register bits */
+static const unsigned long mfpr_lpm[] = {
+ MFPR_LPM_INPUT,
+ MFPR_LPM_DRIVE_LOW,
+ MFPR_LPM_DRIVE_HIGH,
+ MFPR_LPM_PULL_LOW,
+ MFPR_LPM_PULL_HIGH,
+ MFPR_LPM_FLOAT,
+ MFPR_LPM_INPUT,
+};
+
+/* mapping of MFP_PULL_* definitions to MFPR_PULL_* register bits */
+static const unsigned long mfpr_pull[] = {
+ MFPR_PULL_NONE,
+ MFPR_PULL_LOW,
+ MFPR_PULL_HIGH,
+ MFPR_PULL_BOTH,
+ MFPR_PULL_FLOAT,
+};
+
+/* mapping of MFP_LPM_EDGE_* definitions to MFPR_EDGE_* register bits */
+static const unsigned long mfpr_edge[] = {
+ MFPR_EDGE_NONE,
+ MFPR_EDGE_RISE,
+ MFPR_EDGE_FALL,
+ MFPR_EDGE_BOTH,
+};
+
+#define mfpr_readl(off) \
+ __raw_readl(mfpr_mmio_base + (off))
+
+#define mfpr_writel(off, val) \
+ __raw_writel(val, mfpr_mmio_base + (off))
+
+#define mfp_configured(p) ((p)->config != -1)
+
+/*
+ * perform a read-back of any valid MFPR register to make sure the
+ * previous writings are finished
+ */
+static unsigned long mfpr_off_readback;
+#define mfpr_sync() (void)__raw_readl(mfpr_mmio_base + mfpr_off_readback)
+
+static inline void __mfp_config_run(struct mfp_pin *p)
+{
+ if (mfp_configured(p))
+ mfpr_writel(p->mfpr_off, p->mfpr_run);
+}
+
+static inline void __mfp_config_lpm(struct mfp_pin *p)
+{
+ if (mfp_configured(p)) {
+ unsigned long mfpr_clr =
+ (p->mfpr_run & ~MFPR_EDGE_BOTH) | MFPR_EDGE_CLEAR;
+
+ if (mfpr_clr != p->mfpr_run)
+ mfpr_writel(p->mfpr_off, mfpr_clr);
+ if (p->mfpr_lpm != mfpr_clr)
+ mfpr_writel(p->mfpr_off, p->mfpr_lpm);
+ }
+}
+
+void mfp_config(unsigned long *mfp_cfgs, int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++, mfp_cfgs++) {
+ unsigned long tmp, c = *mfp_cfgs;
+ struct mfp_pin *p;
+ int pin, af, drv, lpm, edge, pull;
+
+ pin = MFP_PIN(c);
+ BUG_ON(pin >= MFP_PIN_MAX);
+ p = &mfp_table[pin];
+
+ af = MFP_AF(c);
+ drv = MFP_DS(c);
+ lpm = MFP_LPM_STATE(c);
+ edge = MFP_LPM_EDGE(c);
+ pull = MFP_PULL(c);
+
+ /* run-mode pull settings will conflict with MFPR bits of
+ * low power mode state, calculate mfpr_run and mfpr_lpm
+ * individually if pull != MFP_PULL_NONE
+ */
+ tmp = MFPR_AF_SEL(af) | MFPR_DRIVE(drv);
+
+ if (likely(pull == MFP_PULL_NONE)) {
+ p->mfpr_run = tmp | mfpr_lpm[lpm] | mfpr_edge[edge];
+ p->mfpr_lpm = p->mfpr_run;
+ } else {
+ p->mfpr_lpm = tmp | mfpr_lpm[lpm] | mfpr_edge[edge];
+ p->mfpr_run = tmp | mfpr_pull[pull];
+ }
+
+ p->config = c; __mfp_config_run(p);
+ }
+
+ mfpr_sync();
+}
+
+unsigned long mfp_read(int mfp)
+{
+ unsigned long val;
+
+ BUG_ON(mfp < 0 || mfp >= MFP_PIN_MAX);
+
+ val = mfpr_readl(mfp_table[mfp].mfpr_off);
+ return val;
+}
+
+void mfp_write(int mfp, unsigned long val)
+{
+ BUG_ON(mfp < 0 || mfp >= MFP_PIN_MAX);
+
+ mfpr_writel(mfp_table[mfp].mfpr_off, val);
+ mfpr_sync();
+}
+
+void __init mfp_init_base(void __iomem *mfpr_base)
+{
+ int i;
+
+ /* initialize the table with default - unconfigured */
+ for (i = 0; i < ARRAY_SIZE(mfp_table); i++)
+ mfp_table[i].config = -1;
+
+ mfpr_mmio_base = mfpr_base;
+}
+
+void __init mfp_init_addr(struct mfp_addr_map *map)
+{
+ struct mfp_addr_map *p;
+ unsigned long offset;
+ int i;
+
+ /* mfp offset for readback */
+ mfpr_off_readback = map[0].offset;
+
+ for (p = map; p->start != MFP_PIN_INVALID; p++) {
+ offset = p->offset;
+ i = p->start;
+
+ do {
+ mfp_table[i].mfpr_off = offset;
+ mfp_table[i].mfpr_run = 0;
+ mfp_table[i].mfpr_lpm = 0;
+ offset += 4; i++;
+ } while ((i <= p->end) && (p->end != -1));
+ }
+}
+
+void mfp_config_lpm(void)
+{
+ struct mfp_pin *p = &mfp_table[0];
+ int pin;
+
+ for (pin = 0; pin < ARRAY_SIZE(mfp_table); pin++, p++)
+ __mfp_config_lpm(p);
+}
+
+void mfp_config_run(void)
+{
+ struct mfp_pin *p = &mfp_table[0];
+ int pin;
+
+ for (pin = 0; pin < ARRAY_SIZE(mfp_table); pin++, p++)
+ __mfp_config_run(p);
+}
+
+static struct mfp_addr_map pxa300_mfp_addr_map[] __initdata = {
+
+ MFP_ADDR_X(GPIO0, GPIO2, 0x00b4),
+ MFP_ADDR_X(GPIO3, GPIO26, 0x027c),
+ MFP_ADDR_X(GPIO27, GPIO98, 0x0400),
+ MFP_ADDR_X(GPIO99, GPIO127, 0x0600),
+ MFP_ADDR_X(GPIO0_2, GPIO1_2, 0x0674),
+ MFP_ADDR_X(GPIO2_2, GPIO6_2, 0x02dc),
+
+ MFP_ADDR(nBE0, 0x0204),
+ MFP_ADDR(nBE1, 0x0208),
+
+ MFP_ADDR(nLUA, 0x0244),
+ MFP_ADDR(nLLA, 0x0254),
+
+ MFP_ADDR(DF_CLE_nOE, 0x0240),
+ MFP_ADDR(DF_nRE_nOE, 0x0200),
+ MFP_ADDR(DF_ALE_nWE, 0x020C),
+ MFP_ADDR(DF_INT_RnB, 0x00C8),
+ MFP_ADDR(DF_nCS0, 0x0248),
+ MFP_ADDR(DF_nCS1, 0x0278),
+ MFP_ADDR(DF_nWE, 0x00CC),
+
+ MFP_ADDR(DF_ADDR0, 0x0210),
+ MFP_ADDR(DF_ADDR1, 0x0214),
+ MFP_ADDR(DF_ADDR2, 0x0218),
+ MFP_ADDR(DF_ADDR3, 0x021C),
+
+ MFP_ADDR(DF_IO0, 0x0220),
+ MFP_ADDR(DF_IO1, 0x0228),
+ MFP_ADDR(DF_IO2, 0x0230),
+ MFP_ADDR(DF_IO3, 0x0238),
+ MFP_ADDR(DF_IO4, 0x0258),
+ MFP_ADDR(DF_IO5, 0x0260),
+ MFP_ADDR(DF_IO6, 0x0268),
+ MFP_ADDR(DF_IO7, 0x0270),
+ MFP_ADDR(DF_IO8, 0x0224),
+ MFP_ADDR(DF_IO9, 0x022C),
+ MFP_ADDR(DF_IO10, 0x0234),
+ MFP_ADDR(DF_IO11, 0x023C),
+ MFP_ADDR(DF_IO12, 0x025C),
+ MFP_ADDR(DF_IO13, 0x0264),
+ MFP_ADDR(DF_IO14, 0x026C),
+ MFP_ADDR(DF_IO15, 0x0274),
+
+ MFP_ADDR_END,
+};
+
+/* override pxa300 MFP register addresses */
+static struct mfp_addr_map pxa310_mfp_addr_map[] __initdata = {
+ MFP_ADDR_X(GPIO30, GPIO98, 0x0418),
+ MFP_ADDR_X(GPIO7_2, GPIO12_2, 0x052C),
+
+ MFP_ADDR(ULPI_STP, 0x040C),
+ MFP_ADDR(ULPI_NXT, 0x0410),
+ MFP_ADDR(ULPI_DIR, 0x0414),
+
+ MFP_ADDR_END,
+};
+
+void mfp_init(void)
+{
+ mfp_init_base((void __iomem *)MFPR_BASE);
+ mfp_init_addr(pxa300_mfp_addr_map);
+ if (cpu_is_pxa310())
+ mfp_init_addr(pxa310_mfp_addr_map);
+}
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
new file mode 100644
index 0000000..86ca63b
--- /dev/null
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -0,0 +1,59 @@
+/*
+ * (C) Copyright 2015 Robert Jarzmik <robert.jarzmik at free.fr>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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 <common.h>
+#include <init.h>
+#include <reset_source.h>
+#include <mach/hardware.h>
+#include <mach/pxa-regs.h>
+
+extern void pxa3xx_suspend(int mode);
+
+static int pxa_detect_reset_source(void)
+{
+ u32 reg = ARSR;
+
+ /*
+ * Order is important, as many bits can be set together
+ */
+ if (reg & ARSR_GPR)
+ reset_source_set(RESET_RST);
+ else if (reg & ARSR_WDT)
+ reset_source_set(RESET_WDG);
+ else if (reg & ARSR_HWR)
+ reset_source_set(RESET_POR);
+ else if (reg & ARSR_LPMR)
+ reset_source_set(RESET_WKE);
+ else
+ reset_source_set(RESET_UKWN);
+
+ return 0;
+}
+
+void pxa_clear_reset_source(void)
+{
+ ARSR = ARSR_GPR | ARSR_LPMR | ARSR_WDT | ARSR_HWR;
+}
+
+device_initcall(pxa_detect_reset_source);
+
+void __noreturn poweroff(void)
+{
+ shutdown_barebox();
+
+ /* Clear last reset source */
+ pxa_clear_reset_source();
+ pxa3xx_suspend(PXA3xx_PM_S3D4C4);
+ unreachable();
+}
diff --git a/arch/arm/mach-pxa/sleep.S b/arch/arm/mach-pxa/sleep.S
index 881033d..7145f7c 100644
--- a/arch/arm/mach-pxa/sleep.S
+++ b/arch/arm/mach-pxa/sleep.S
@@ -79,3 +79,10 @@ pxa_cpu_do_suspend:
@ enter sleep mode
mcr p14, 0, r1, c7, c0, 0 @ PWRMODE
20: b 20b @ loop waiting for sleep
+
+ /*
+ * pxa3xx_finish_suspend() - forces CPU into sleep state
+ */
+ENTRY(pxa3xx_suspend)
+ mcr p14, 0, r0, c7, c0, 0 @ enter sleep
+20: b 20b @ waiting for sleep
diff --git a/arch/arm/mach-pxa/speed-pxa3xx.c b/arch/arm/mach-pxa/speed-pxa3xx.c
new file mode 100644
index 0000000..6a08ea7
--- /dev/null
+++ b/arch/arm/mach-pxa/speed-pxa3xx.c
@@ -0,0 +1,33 @@
+/*
+ * clock.h - implementation of the PXA clock functions
+ *
+ * Copyright (C) 2014 by Robert Jarzmik <robert.jarzmik at free.fr>
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#include <common.h>
+#include <mach/clock.h>
+#include <mach/pxa-regs.h>
+
+/* Crystal clock: 13MHz */
+#define BASE_CLK 13000000
+
+unsigned long pxa_get_uartclk(void)
+{
+ return 14857000;
+}
+
+unsigned long pxa_get_pwmclk(void)
+{
+ return BASE_CLK;
+}
+
+unsigned long pxa_get_nandclk(void)
+{
+ if (cpu_is_pxa320())
+ return 104000000;
+ else
+ return 156000000;
+}
--
2.1.0
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