*
* These headers and macros are used to define OMAP on-chip module
* data and their integration with other OMAP modules and Linux.
- *
- * References:
- * - OMAP2420 Multimedia Processor Silicon Revision 2.1.1, 2.2 (SWPU064)
- * - OMAP2430 Multimedia Device POP Silicon Revision 2.1 (SWPU090)
- * - OMAP34xx Multimedia Device Silicon Revision 3.1 (SWPU108)
- * - OMAP4430 Multimedia Device Silicon Revision 1.0 (SWPU140)
- * - Open Core Protocol Specification 2.2
+ * Copious documentation and references can also be found in the
+ * omap_hwmod code, in arch/arm/mach-omap2/omap_hwmod.c (as of this
+ * writing).
*
* To do:
* - add interconnect error log structures
* - add pinmuxing
* - init_conn_id_bit (CONNID_BIT_VECTOR)
* - implement default hwmod SMS/SDRC flags?
+ * - remove unused fields
*
*/
#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/ioport.h>
+#include <linux/mutex.h>
#include <plat/cpu.h>
struct omap_device;
/**
* struct omap_hwmod_dma_info - DMA channels used by the hwmod
* @name: name of the DMA channel (module local name)
- * @dma_ch: DMA channel ID
+ * @dma_req: DMA request ID
*
* @name should be something short, e.g., "tx" or "rx". It is for use
* by platform_get_resource_byname(). It is defined locally to the
*/
struct omap_hwmod_dma_info {
const char *name;
- u16 dma_ch;
+ u16 dma_req;
+};
+
+/**
+ * struct omap_hwmod_rst_info - IPs reset lines use by hwmod
+ * @name: name of the reset line (module local name)
+ * @rst_shift: Offset of the reset bit
+ *
+ * @name should be something short, e.g., "cpu0" or "rst". It is defined
+ * locally to the hwmod.
+ */
+struct omap_hwmod_rst_info {
+ const char *name;
+ u8 rst_shift;
};
/**
#define SYSC_HAS_CLOCKACTIVITY (1 << 4)
#define SYSC_HAS_SIDLEMODE (1 << 5)
#define SYSC_HAS_MIDLEMODE (1 << 6)
-#define SYSS_MISSING (1 << 7)
+#define SYSS_HAS_RESET_STATUS (1 << 7)
#define SYSC_NO_CACHE (1 << 8) /* XXX SW flag, belongs elsewhere */
+#define SYSC_HAS_RESET_STATUS (1 << 9)
/* omap_hwmod_sysconfig.clockact flags */
#define CLOCKACT_TEST_BOTH 0x0
/**
* struct omap_hwmod_omap4_prcm - OMAP4-specific PRCM data
* @clkctrl_reg: PRCM address of the clock control register
+ * @rstctrl_reg: adress of the XXX_RSTCTRL register located in the PRM
* @submodule_wkdep_bit: bit shift of the WKDEP range
*/
struct omap_hwmod_omap4_prcm {
void __iomem *clkctrl_reg;
+ void __iomem *rstctrl_reg;
u8 submodule_wkdep_bit;
};
* HWMOD_SET_DEFAULT_CLOCKACT: program CLOCKACTIVITY bits at startup
* HWMOD_NO_IDLEST : this module does not have idle status - this is the case
* only for few initiator modules on OMAP2 & 3.
+ * HWMOD_CONTROL_OPT_CLKS_IN_RESET: Enable all optional clocks during reset.
+ * This is needed for devices like DSS that require optional clocks enabled
+ * in order to complete the reset. Optional clocks will be disabled
+ * again after the reset.
+ * HWMOD_16BIT_REG: Module has 16bit registers
*/
#define HWMOD_SWSUP_SIDLE (1 << 0)
#define HWMOD_SWSUP_MSTANDBY (1 << 1)
#define HWMOD_NO_OCP_AUTOIDLE (1 << 4)
#define HWMOD_SET_DEFAULT_CLOCKACT (1 << 5)
#define HWMOD_NO_IDLEST (1 << 6)
+#define HWMOD_CONTROL_OPT_CLKS_IN_RESET (1 << 7)
+#define HWMOD_16BIT_REG (1 << 8)
/*
* omap_hwmod._int_flags definitions
* @class: struct omap_hwmod_class * to the class of this hwmod
* @od: struct omap_device currently associated with this hwmod (internal use)
* @mpu_irqs: ptr to an array of MPU IRQs (see also mpu_irqs_cnt)
- * @sdma_chs: ptr to an array of SDMA channel IDs (see also sdma_chs_cnt)
+ * @sdma_reqs: ptr to an array of System DMA request IDs (see sdma_reqs_cnt)
* @prcm: PRCM data pertaining to this hwmod
* @main_clk: main clock: OMAP clock name
* @_clk: pointer to the main struct clk (filled in at runtime)
* @msuspendmux_reg_id: CONTROL_MSUSPENDMUX register ID (1-6)
* @msuspendmux_shift: CONTROL_MSUSPENDMUX register bit shift
* @mpu_irqs_cnt: number of @mpu_irqs
- * @sdma_chs_cnt: number of @sdma_chs
+ * @sdma_reqs_cnt: number of @sdma_reqs
* @opt_clks_cnt: number of @opt_clks
* @master_cnt: number of @master entries
* @slaves_cnt: number of @slave entries
* @_state: internal-use hwmod state
* @flags: hwmod flags (documented below)
* @omap_chip: OMAP chips this hwmod is present on
+ * @_mutex: mutex serializing operations on this hwmod
* @node: list node for hwmod list (internal use)
*
* @main_clk refers to this module's "main clock," which for our
struct omap_hwmod_class *class;
struct omap_device *od;
struct omap_hwmod_irq_info *mpu_irqs;
- struct omap_hwmod_dma_info *sdma_chs;
+ struct omap_hwmod_dma_info *sdma_reqs;
+ struct omap_hwmod_rst_info *rst_lines;
union {
struct omap_hwmod_omap2_prcm omap2;
struct omap_hwmod_omap4_prcm omap4;
void *dev_attr;
u32 _sysc_cache;
void __iomem *_mpu_rt_va;
+ struct mutex _mutex;
struct list_head node;
u16 flags;
u8 _mpu_port_index;
u8 msuspendmux_shift;
u8 response_lat;
u8 mpu_irqs_cnt;
- u8 sdma_chs_cnt;
+ u8 sdma_reqs_cnt;
+ u8 rst_lines_cnt;
u8 opt_clks_cnt;
u8 masters_cnt;
u8 slaves_cnt;
int _omap_hwmod_idle(struct omap_hwmod *oh);
int omap_hwmod_shutdown(struct omap_hwmod *oh);
+int omap_hwmod_assert_hardreset(struct omap_hwmod *oh, const char *name);
+int omap_hwmod_deassert_hardreset(struct omap_hwmod *oh, const char *name);
+int omap_hwmod_read_hardreset(struct omap_hwmod *oh, const char *name);
+
int omap_hwmod_enable_clocks(struct omap_hwmod *oh);
int omap_hwmod_disable_clocks(struct omap_hwmod *oh);
int omap_hwmod_reset(struct omap_hwmod *oh);
void omap_hwmod_ocp_barrier(struct omap_hwmod *oh);
-void omap_hwmod_writel(u32 v, struct omap_hwmod *oh, u16 reg_offs);
-u32 omap_hwmod_readl(struct omap_hwmod *oh, u16 reg_offs);
+void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs);
+u32 omap_hwmod_read(struct omap_hwmod *oh, u16 reg_offs);
int omap_hwmod_count_resources(struct omap_hwmod *oh);
int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res);
extern int omap2420_hwmod_init(void);
extern int omap2430_hwmod_init(void);
extern int omap3xxx_hwmod_init(void);
+extern int omap44xx_hwmod_init(void);
#endif
git.openpandora.org / pandora-kernel.git / blobdiff