diff options
| author | Nishanth Menon <nm@ti.com> | 2012-03-01 14:17:37 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-05-15 08:31:22 +0200 |
| commit | a78274b2050dcacc29561f4e35bdc91b896578cd (patch) | |
| tree | 6817722c1ed47b4927e838276b7812c1b99ce205 /arch/arm/include/asm/arch-omap4 | |
| parent | bbbc1ae9219ae8c8098c0af14060da5cb0d37e53 (diff) | |
OMAP3+: Introduce generic logic for OMAP voltage controller
OMAP Voltage controller is used to generically talk to
PMICs on OMAP3,4,5 over I2C_SR. Instead of replicating code
in multiple SoC code, introduce a common voltage controller
logic which can be re-used from elsewhere.
With this change, we replace setup_sri2c with omap_vc_init which
has the same functionality, and replace the voltage scale
replication in do_scale_vcore and do_scale_tps62361 with
omap_vc_bypass_send_value. omap_vc_bypass_send_value can also
now be used with any configuration of PMIC.
NOTE: Voltage controller controlling I2C_SR is a write-only data
path, so no register read operation can be implemented.
Reported-by: Isabelle Gros <i-gros@ti.com>
Reported-by: Jerome Angeloni <j-angeloni@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Diffstat (limited to 'arch/arm/include/asm/arch-omap4')
| -rw-r--r-- | arch/arm/include/asm/arch-omap4/clocks.h | 15 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-omap4/sys_proto.h | 2 |
2 files changed, 2 insertions, 15 deletions
diff --git a/arch/arm/include/asm/arch-omap4/clocks.h b/arch/arm/include/asm/arch-omap4/clocks.h index cd304e868..4e93950cb 100644 --- a/arch/arm/include/asm/arch-omap4/clocks.h +++ b/arch/arm/include/asm/arch-omap4/clocks.h @@ -652,23 +652,9 @@ struct omap4_scrm_regs { #define OMAP_SYS_CLK_IND_38_4_MHZ 6 #define OMAP_32K_CLK_FREQ 32768 -/* PRM_VC_CFG_I2C_CLK */ -#define PRM_VC_CFG_I2C_CLK_SCLH_SHIFT 0 -#define PRM_VC_CFG_I2C_CLK_SCLH_MASK 0xFF -#define PRM_VC_CFG_I2C_CLK_SCLL_SHIFT 8 -#define PRM_VC_CFG_I2C_CLK_SCLL_MASK (0xFF << 8) - /* PRM_VC_VAL_BYPASS */ #define PRM_VC_I2C_CHANNEL_FREQ_KHZ 400 -#define PRM_VC_VAL_BYPASS_VALID_BIT 0x1000000 -#define PRM_VC_VAL_BYPASS_SLAVEADDR_SHIFT 0 -#define PRM_VC_VAL_BYPASS_SLAVEADDR_MASK 0x7F -#define PRM_VC_VAL_BYPASS_REGADDR_SHIFT 8 -#define PRM_VC_VAL_BYPASS_REGADDR_MASK 0xFF -#define PRM_VC_VAL_BYPASS_DATA_SHIFT 16 -#define PRM_VC_VAL_BYPASS_DATA_MASK 0xFF - /* SMPS */ #define SMPS_I2C_SLAVE_ADDR 0x12 #define SMPS_REG_ADDR_VCORE1 0x55 @@ -757,7 +743,6 @@ void scale_vcores(void); void do_scale_tps62361(u32 reg, u32 volt_mv); u32 omap_ddr_clk(void); void do_scale_vcore(u32 vcore_reg, u32 volt_mv); -void setup_sri2c(void); void setup_post_dividers(u32 *const base, const struct dpll_params *params); u32 get_sys_clk_index(void); void enable_basic_clocks(void); diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h index b8dbc2c9a..101eb464c 100644 --- a/arch/arm/include/asm/arch-omap4/sys_proto.h +++ b/arch/arm/include/asm/arch-omap4/sys_proto.h @@ -55,6 +55,8 @@ u32 omap_sdram_size(void); u32 cortex_rev(void); void init_omap_revision(void); void do_io_settings(void); +void omap_vc_init(u16 speed_khz); +int omap_vc_bypass_send_value(u8 sa, u8 reg_addr, u8 reg_data); /* * This is used to verify if the configuration header * was executed by Romcode prior to control of transfer |