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linux-next/arch/powerpc/include/asm/mpc52xx.h
Anatolij Gustschin 9d9fd8871b powerpc/mpc52xx_lpbfifo: optionally defer fifo transfer start 
Currently fifo transfer is started when submitting a transfer
request. Add posibility to defer the fifo transfer and start it
later by calling additional function. This change is backward
compatible, the behaviour of mpc52xx_lpbfifo_submit() is the same
for previous driver users, so there is no need to adapt them.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2012-09-14 10:15:35 +02:00

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/*
* Prototypes, etc. for the Freescale MPC52xx embedded cpu chips
* May need to be cleaned as the port goes on ...
*
* Copyright (C) 2004-2005 Sylvain Munaut <tnt@246tNt.com>
* Copyright (C) 2003 MontaVista, Software, Inc.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#ifndef __ASM_POWERPC_MPC52xx_H__
#define __ASM_POWERPC_MPC52xx_H__
#ifndef __ASSEMBLY__
#include <asm/types.h>
#include <asm/prom.h>
#include <asm/mpc5xxx.h>
#endif /* __ASSEMBLY__ */
#include <linux/suspend.h>
/* Variants of the 5200(B) */
#define MPC5200_SVR 0x80110010
#define MPC5200_SVR_MASK 0xfffffff0
#define MPC5200B_SVR 0x80110020
#define MPC5200B_SVR_MASK 0xfffffff0
/* ======================================================================== */
/* Structures mapping of some unit register set */
/* ======================================================================== */
#ifndef __ASSEMBLY__
/* Memory Mapping Control */
struct mpc52xx_mmap_ctl {
u32 mbar; /* MMAP_CTRL + 0x00 */
u32 cs0_start; /* MMAP_CTRL + 0x04 */
u32 cs0_stop; /* MMAP_CTRL + 0x08 */
u32 cs1_start; /* MMAP_CTRL + 0x0c */
u32 cs1_stop; /* MMAP_CTRL + 0x10 */
u32 cs2_start; /* MMAP_CTRL + 0x14 */
u32 cs2_stop; /* MMAP_CTRL + 0x18 */
u32 cs3_start; /* MMAP_CTRL + 0x1c */
u32 cs3_stop; /* MMAP_CTRL + 0x20 */
u32 cs4_start; /* MMAP_CTRL + 0x24 */
u32 cs4_stop; /* MMAP_CTRL + 0x28 */
u32 cs5_start; /* MMAP_CTRL + 0x2c */
u32 cs5_stop; /* MMAP_CTRL + 0x30 */
u32 sdram0; /* MMAP_CTRL + 0x34 */
u32 sdram1; /* MMAP_CTRL + 0X38 */
u32 reserved[4]; /* MMAP_CTRL + 0x3c .. 0x48 */
u32 boot_start; /* MMAP_CTRL + 0x4c */
u32 boot_stop; /* MMAP_CTRL + 0x50 */
u32 ipbi_ws_ctrl; /* MMAP_CTRL + 0x54 */
u32 cs6_start; /* MMAP_CTRL + 0x58 */
u32 cs6_stop; /* MMAP_CTRL + 0x5c */
u32 cs7_start; /* MMAP_CTRL + 0x60 */
u32 cs7_stop; /* MMAP_CTRL + 0x64 */
};
/* SDRAM control */
struct mpc52xx_sdram {
u32 mode; /* SDRAM + 0x00 */
u32 ctrl; /* SDRAM + 0x04 */
u32 config1; /* SDRAM + 0x08 */
u32 config2; /* SDRAM + 0x0c */
};
/* SDMA */
struct mpc52xx_sdma {
u32 taskBar; /* SDMA + 0x00 */
u32 currentPointer; /* SDMA + 0x04 */
u32 endPointer; /* SDMA + 0x08 */
u32 variablePointer; /* SDMA + 0x0c */
u8 IntVect1; /* SDMA + 0x10 */
u8 IntVect2; /* SDMA + 0x11 */
u16 PtdCntrl; /* SDMA + 0x12 */
u32 IntPend; /* SDMA + 0x14 */
u32 IntMask; /* SDMA + 0x18 */
u16 tcr[16]; /* SDMA + 0x1c .. 0x3a */
u8 ipr[32]; /* SDMA + 0x3c .. 0x5b */
u32 cReqSelect; /* SDMA + 0x5c */
u32 task_size0; /* SDMA + 0x60 */
u32 task_size1; /* SDMA + 0x64 */
u32 MDEDebug; /* SDMA + 0x68 */
u32 ADSDebug; /* SDMA + 0x6c */
u32 Value1; /* SDMA + 0x70 */
u32 Value2; /* SDMA + 0x74 */
u32 Control; /* SDMA + 0x78 */
u32 Status; /* SDMA + 0x7c */
u32 PTDDebug; /* SDMA + 0x80 */
};
/* GPT */
struct mpc52xx_gpt {
u32 mode; /* GPTx + 0x00 */
u32 count; /* GPTx + 0x04 */
u32 pwm; /* GPTx + 0x08 */
u32 status; /* GPTx + 0X0c */
};
/* GPIO */
struct mpc52xx_gpio {
u32 port_config; /* GPIO + 0x00 */
u32 simple_gpioe; /* GPIO + 0x04 */
u32 simple_ode; /* GPIO + 0x08 */
u32 simple_ddr; /* GPIO + 0x0c */
u32 simple_dvo; /* GPIO + 0x10 */
u32 simple_ival; /* GPIO + 0x14 */
u8 outo_gpioe; /* GPIO + 0x18 */
u8 reserved1[3]; /* GPIO + 0x19 */
u8 outo_dvo; /* GPIO + 0x1c */
u8 reserved2[3]; /* GPIO + 0x1d */
u8 sint_gpioe; /* GPIO + 0x20 */
u8 reserved3[3]; /* GPIO + 0x21 */
u8 sint_ode; /* GPIO + 0x24 */
u8 reserved4[3]; /* GPIO + 0x25 */
u8 sint_ddr; /* GPIO + 0x28 */
u8 reserved5[3]; /* GPIO + 0x29 */
u8 sint_dvo; /* GPIO + 0x2c */
u8 reserved6[3]; /* GPIO + 0x2d */
u8 sint_inten; /* GPIO + 0x30 */
u8 reserved7[3]; /* GPIO + 0x31 */
u16 sint_itype; /* GPIO + 0x34 */
u16 reserved8; /* GPIO + 0x36 */
u8 gpio_control; /* GPIO + 0x38 */
u8 reserved9[3]; /* GPIO + 0x39 */
u8 sint_istat; /* GPIO + 0x3c */
u8 sint_ival; /* GPIO + 0x3d */
u8 bus_errs; /* GPIO + 0x3e */
u8 reserved10; /* GPIO + 0x3f */
};
#define MPC52xx_GPIO_PSC_CONFIG_UART_WITHOUT_CD 4
#define MPC52xx_GPIO_PSC_CONFIG_UART_WITH_CD 5
#define MPC52xx_GPIO_PCI_DIS (1<<15)
/* GPIO with WakeUp*/
struct mpc52xx_gpio_wkup {
u8 wkup_gpioe; /* GPIO_WKUP + 0x00 */
u8 reserved1[3]; /* GPIO_WKUP + 0x03 */
u8 wkup_ode; /* GPIO_WKUP + 0x04 */
u8 reserved2[3]; /* GPIO_WKUP + 0x05 */
u8 wkup_ddr; /* GPIO_WKUP + 0x08 */
u8 reserved3[3]; /* GPIO_WKUP + 0x09 */
u8 wkup_dvo; /* GPIO_WKUP + 0x0C */
u8 reserved4[3]; /* GPIO_WKUP + 0x0D */
u8 wkup_inten; /* GPIO_WKUP + 0x10 */
u8 reserved5[3]; /* GPIO_WKUP + 0x11 */
u8 wkup_iinten; /* GPIO_WKUP + 0x14 */
u8 reserved6[3]; /* GPIO_WKUP + 0x15 */
u16 wkup_itype; /* GPIO_WKUP + 0x18 */
u8 reserved7[2]; /* GPIO_WKUP + 0x1A */
u8 wkup_maste; /* GPIO_WKUP + 0x1C */
u8 reserved8[3]; /* GPIO_WKUP + 0x1D */
u8 wkup_ival; /* GPIO_WKUP + 0x20 */
u8 reserved9[3]; /* GPIO_WKUP + 0x21 */
u8 wkup_istat; /* GPIO_WKUP + 0x24 */
u8 reserved10[3]; /* GPIO_WKUP + 0x25 */
};
/* XLB Bus control */
struct mpc52xx_xlb {
u8 reserved[0x40];
u32 config; /* XLB + 0x40 */
u32 version; /* XLB + 0x44 */
u32 status; /* XLB + 0x48 */
u32 int_enable; /* XLB + 0x4c */
u32 addr_capture; /* XLB + 0x50 */
u32 bus_sig_capture; /* XLB + 0x54 */
u32 addr_timeout; /* XLB + 0x58 */
u32 data_timeout; /* XLB + 0x5c */
u32 bus_act_timeout; /* XLB + 0x60 */
u32 master_pri_enable; /* XLB + 0x64 */
u32 master_priority; /* XLB + 0x68 */
u32 base_address; /* XLB + 0x6c */
u32 snoop_window; /* XLB + 0x70 */
};
#define MPC52xx_XLB_CFG_PLDIS (1 << 31)
#define MPC52xx_XLB_CFG_SNOOP (1 << 15)
/* Clock Distribution control */
struct mpc52xx_cdm {
u32 jtag_id; /* CDM + 0x00 reg0 read only */
u32 rstcfg; /* CDM + 0x04 reg1 read only */
u32 breadcrumb; /* CDM + 0x08 reg2 */
u8 mem_clk_sel; /* CDM + 0x0c reg3 byte0 */
u8 xlb_clk_sel; /* CDM + 0x0d reg3 byte1 read only */
u8 ipb_clk_sel; /* CDM + 0x0e reg3 byte2 */
u8 pci_clk_sel; /* CDM + 0x0f reg3 byte3 */
u8 ext_48mhz_en; /* CDM + 0x10 reg4 byte0 */
u8 fd_enable; /* CDM + 0x11 reg4 byte1 */
u16 fd_counters; /* CDM + 0x12 reg4 byte2,3 */
u32 clk_enables; /* CDM + 0x14 reg5 */
u8 osc_disable; /* CDM + 0x18 reg6 byte0 */
u8 reserved0[3]; /* CDM + 0x19 reg6 byte1,2,3 */
u8 ccs_sleep_enable; /* CDM + 0x1c reg7 byte0 */
u8 osc_sleep_enable; /* CDM + 0x1d reg7 byte1 */
u8 reserved1; /* CDM + 0x1e reg7 byte2 */
u8 ccs_qreq_test; /* CDM + 0x1f reg7 byte3 */
u8 soft_reset; /* CDM + 0x20 u8 byte0 */
u8 no_ckstp; /* CDM + 0x21 u8 byte0 */
u8 reserved2[2]; /* CDM + 0x22 u8 byte1,2,3 */
u8 pll_lock; /* CDM + 0x24 reg9 byte0 */
u8 pll_looselock; /* CDM + 0x25 reg9 byte1 */
u8 pll_sm_lockwin; /* CDM + 0x26 reg9 byte2 */
u8 reserved3; /* CDM + 0x27 reg9 byte3 */
u16 reserved4; /* CDM + 0x28 reg10 byte0,1 */
u16 mclken_div_psc1; /* CDM + 0x2a reg10 byte2,3 */
u16 reserved5; /* CDM + 0x2c reg11 byte0,1 */
u16 mclken_div_psc2; /* CDM + 0x2e reg11 byte2,3 */
u16 reserved6; /* CDM + 0x30 reg12 byte0,1 */
u16 mclken_div_psc3; /* CDM + 0x32 reg12 byte2,3 */
u16 reserved7; /* CDM + 0x34 reg13 byte0,1 */
u16 mclken_div_psc6; /* CDM + 0x36 reg13 byte2,3 */
};
/* Interrupt controller Register set */
struct mpc52xx_intr {
u32 per_mask; /* INTR + 0x00 */
u32 per_pri1; /* INTR + 0x04 */
u32 per_pri2; /* INTR + 0x08 */
u32 per_pri3; /* INTR + 0x0c */
u32 ctrl; /* INTR + 0x10 */
u32 main_mask; /* INTR + 0x14 */
u32 main_pri1; /* INTR + 0x18 */
u32 main_pri2; /* INTR + 0x1c */
u32 reserved1; /* INTR + 0x20 */
u32 enc_status; /* INTR + 0x24 */
u32 crit_status; /* INTR + 0x28 */
u32 main_status; /* INTR + 0x2c */
u32 per_status; /* INTR + 0x30 */
u32 reserved2; /* INTR + 0x34 */
u32 per_error; /* INTR + 0x38 */
};
#endif /* __ASSEMBLY__ */
/* ========================================================================= */
/* Prototypes for MPC52xx sysdev */
/* ========================================================================= */
#ifndef __ASSEMBLY__
/* mpc52xx_common.c */
extern void mpc5200_setup_xlb_arbiter(void);
extern void mpc52xx_declare_of_platform_devices(void);
extern int mpc5200_psc_ac97_gpio_reset(int psc_number);
extern void mpc52xx_map_common_devices(void);
extern int mpc52xx_set_psc_clkdiv(int psc_id, int clkdiv);
extern unsigned int mpc52xx_get_xtal_freq(struct device_node *node);
extern void mpc52xx_restart(char *cmd);
/* mpc52xx_gpt.c */
struct mpc52xx_gpt_priv;
extern struct mpc52xx_gpt_priv *mpc52xx_gpt_from_irq(int irq);
extern int mpc52xx_gpt_start_timer(struct mpc52xx_gpt_priv *gpt, u64 period,
int continuous);
extern u64 mpc52xx_gpt_timer_period(struct mpc52xx_gpt_priv *gpt);
extern int mpc52xx_gpt_stop_timer(struct mpc52xx_gpt_priv *gpt);
/* mpc52xx_lpbfifo.c */
#define MPC52XX_LPBFIFO_FLAG_READ (0)
#define MPC52XX_LPBFIFO_FLAG_WRITE (1<<0)
#define MPC52XX_LPBFIFO_FLAG_NO_INCREMENT (1<<1)
#define MPC52XX_LPBFIFO_FLAG_NO_DMA (1<<2)
#define MPC52XX_LPBFIFO_FLAG_POLL_DMA (1<<3)
struct mpc52xx_lpbfifo_request {
struct list_head list;
/* localplus bus address */
unsigned int cs;
size_t offset;
/* Memory address */
void *data;
phys_addr_t data_phys;
/* Details of transfer */
size_t size;
size_t pos; /* current position of transfer */
int flags;
int defer_xfer_start;
/* What to do when finished */
void (*callback)(struct mpc52xx_lpbfifo_request *);
void *priv; /* Driver private data */
/* statistics */
int irq_count;
int irq_ticks;
u8 last_byte;
int buffer_not_done_cnt;
};
extern int mpc52xx_lpbfifo_submit(struct mpc52xx_lpbfifo_request *req);
extern void mpc52xx_lpbfifo_abort(struct mpc52xx_lpbfifo_request *req);
extern void mpc52xx_lpbfifo_poll(void);
extern int mpc52xx_lpbfifo_start_xfer(struct mpc52xx_lpbfifo_request *req);
/* mpc52xx_pic.c */
extern void mpc52xx_init_irq(void);
extern unsigned int mpc52xx_get_irq(void);
/* mpc52xx_pci.c */
#ifdef CONFIG_PCI
extern int __init mpc52xx_add_bridge(struct device_node *node);
extern void __init mpc52xx_setup_pci(void);
#else
static inline void mpc52xx_setup_pci(void) { }
#endif
#endif /* __ASSEMBLY__ */
#ifdef CONFIG_PM
struct mpc52xx_suspend {
void (*board_suspend_prepare)(void __iomem *mbar);
void (*board_resume_finish)(void __iomem *mbar);
};
extern struct mpc52xx_suspend mpc52xx_suspend;
extern int __init mpc52xx_pm_init(void);
extern int mpc52xx_set_wakeup_gpio(u8 pin, u8 level);
#ifdef CONFIG_PPC_LITE5200
extern int __init lite5200_pm_init(void);
/* lite5200 calls mpc5200 suspend functions, so here they are */
extern int mpc52xx_pm_prepare(void);
extern int mpc52xx_pm_enter(suspend_state_t);
extern void mpc52xx_pm_finish(void);
extern char saved_sram[0x4000]; /* reuse buffer from mpc52xx suspend */
#endif
#endif /* CONFIG_PM */
#endif /* __ASM_POWERPC_MPC52xx_H__ */
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