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Linux Kernel
3.7.1
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All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
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Linux Kernel
3.7.1
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#include <linux/module.h>#include <linux/kernel.h>#include <linux/device.h>#include <linux/list.h>#include <linux/errno.h>#include <linux/delay.h>#include <linux/clk.h>#include <linux/io.h>#include "common.h"#include <plat/clock.h>#include <plat/sram.h>#include <plat/sdrc.h>#include "sdrc.h"Go to the source code of this file.
Data Structures | |
| struct | omap2_sms_regs |
Macros | |
| #define | SDRC_POWER_EXTCLKDIS_SHIFT 3 |
| #define | SDRC_POWER_PWDENA_SHIFT 2 |
| #define | SDRC_POWER_PAGEPOLICY_SHIFT 0 |
Functions | |
| void | omap2_sms_save_context (void) |
| void | omap2_sms_restore_context (void) |
| int | omap2_sdrc_get_params (unsigned long r, struct omap_sdrc_params **sdrc_cs0, struct omap_sdrc_params **sdrc_cs1) |
| void __init | omap2_set_globals_sdrc (struct omap_globals *omap2_globals) |
| void __init | omap2_sdrc_init (struct omap_sdrc_params *sdrc_cs0, struct omap_sdrc_params *sdrc_cs1) |
| void | omap2_sms_write_rot_control (u32 val, unsigned ctx) |
| void | omap2_sms_write_rot_size (u32 val, unsigned ctx) |
| void | omap2_sms_write_rot_physical_ba (u32 val, unsigned ctx) |
Variables | |
| void __iomem * | omap2_sdrc_base |
| void __iomem * | omap2_sms_base |
| int omap2_sdrc_get_params | ( | unsigned long | r, |
| struct omap_sdrc_params ** | sdrc_cs0, | ||
| struct omap_sdrc_params ** | sdrc_cs1 | ||
| ) |
omap2_sdrc_get_params - return SDRC register values for a given clock rate : SDRC clock rate (in Hz) : chip select 0 ram timings ** : chip select 1 ram timings **
Return pre-calculated values for the SDRC_ACTIM_CTRLA, SDRC_ACTIM_CTRLB, SDRC_RFR_CTRL and SDRC_MR registers in sdrc_cs[01] structs,for a given SDRC clock rate 'r'. These parameters control various timing delays in the SDRAM controller that are expressed in terms of the number of SDRC clock cycles to wait; hence the clock rate dependency.
Supports 2 different timing parameters for both chip selects.
Note 1: the sdrc_init_params_cs[01] must be sorted rate descending. Note 2: If sdrc_init_params_cs_1 is not NULL it must be of same size as sdrc_init_params_cs_0.
Fills in the struct omap_sdrc_params * for each chip select. Returns 0 upon success or -1 upon failure.
| void __init omap2_sdrc_init | ( | struct omap_sdrc_params * | sdrc_cs0, |
| struct omap_sdrc_params * | sdrc_cs1 | ||
| ) |
omap2_sdrc_init - initialize SMS, SDRC devices on boot [01]: pointers to a null-terminated list of struct omap_sdrc_params Support for 2 chip selects timings
Turn on smart idle modes for SDRAM scheduler and controller. Program a known-good configuration for the SDRC to deal with buggy bootloaders.
| void __init omap2_set_globals_sdrc | ( | struct omap_globals * | omap2_globals | ) |
1.8.2