diff options
Diffstat (limited to 'arch/arm/cpu/armv7/omap4/clocks.c')
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/clocks.c | 85 |
1 files changed, 50 insertions, 35 deletions
diff --git a/arch/arm/cpu/armv7/omap4/clocks.c b/arch/arm/cpu/armv7/omap4/clocks.c index e2189f729..c568951a9 100644 --- a/arch/arm/cpu/armv7/omap4/clocks.c +++ b/arch/arm/cpu/armv7/omap4/clocks.c @@ -46,8 +46,6 @@ #define puts(s) #endif -#define abs(x) (((x) < 0) ? ((x)*-1) : (x)) - struct omap4_prcm_regs *const prcm = (struct omap4_prcm_regs *)0x4A004100; const u32 sys_clk_array[8] = { @@ -275,47 +273,70 @@ void scale_vcores(void) { u32 volt, omap_rev; - setup_sri2c(); + omap_vc_init(PRM_VC_I2C_CHANNEL_FREQ_KHZ); omap_rev = omap_revision(); - /* TPS - supplies vdd_mpu on 4460 */ - if (omap_rev >= OMAP4460_ES1_0) { - volt = 1203; - do_scale_tps62361(TPS62361_REG_ADDR_SET1, volt); - } /* - * VCORE 1 - * - * 4430 : supplies vdd_mpu - * Setting a high voltage for Nitro mode as smart reflex is not enabled. - * We use the maximum possible value in the AVS range because the next - * higher voltage in the discrete range (code >= 0b111010) is way too - * high - * - * 4460 : supplies vdd_core + * Scale Voltage rails: + * 1. VDD_CORE + * 3. VDD_MPU + * 3. VDD_IVA */ if (omap_rev < OMAP4460_ES1_0) { + /* + * OMAP4430: + * VDD_CORE = TWL6030 VCORE3 + * VDD_MPU = TWL6030 VCORE1 + * VDD_IVA = TWL6030 VCORE2 + */ + volt = 1200; + do_scale_vcore(SMPS_REG_ADDR_VCORE3, volt); + + /* + * note on VDD_MPU: + * Setting a high voltage for Nitro mode as smart reflex is not + * enabled. We use the maximum possible value in the AVS range + * because the next higher voltage in the discrete range + * (code >= 0b111010) is way too high. + */ volt = 1325; do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt); + volt = 1200; + do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt); + } else { + /* + * OMAP4460: + * VDD_CORE = TWL6030 VCORE1 + * VDD_MPU = TPS62361 + * VDD_IVA = TWL6030 VCORE2 + */ volt = 1200; do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt); + /* TPS62361 */ + volt = 1203; + do_scale_tps62361(TPS62361_VSEL0_GPIO, + TPS62361_REG_ADDR_SET1, volt); + /* VCORE 2 - supplies vdd_iva */ + volt = 1200; + do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt); } +} - /* VCORE 2 - supplies vdd_iva */ - volt = 1200; - do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt); +u32 get_offset_code(u32 offset) +{ + u32 offset_code, step = 12660; /* 12.66 mV represented in uV */ - /* - * VCORE 3 - * 4430 : supplies vdd_core - * 4460 : not connected - */ - if (omap_rev < OMAP4460_ES1_0) { - volt = 1200; - do_scale_vcore(SMPS_REG_ADDR_VCORE3, volt); - } + if (omap_revision() == OMAP4430_ES1_0) + offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV; + else + offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV; + + offset_code = (offset + step - 1) / step; + + /* The code starts at 1 not 0 */ + return ++offset_code; } /* @@ -355,7 +376,6 @@ void enable_basic_clocks(void) &prcm->cm_l4per_gptimer2_clkctrl, &prcm->cm_wkup_wdtimer2_clkctrl, &prcm->cm_l4per_uart3_clkctrl, - &prcm->cm_l3init_fsusb_clkctrl, &prcm->cm_l3init_hsusbhost_clkctrl, 0 }; @@ -432,10 +452,6 @@ void enable_non_essential_clocks(void) }; u32 *const clk_modules_hw_auto_non_essential[] = { - &prcm->cm_mpu_m3_mpu_m3_clkctrl, - &prcm->cm_ivahd_ivahd_clkctrl, - &prcm->cm_ivahd_sl2_clkctrl, - &prcm->cm_dsp_dsp_clkctrl, &prcm->cm_l3_2_gpmc_clkctrl, &prcm->cm_l3instr_l3_3_clkctrl, &prcm->cm_l3instr_l3_instr_clkctrl, @@ -482,7 +498,6 @@ void enable_non_essential_clocks(void) &prcm->cm_dss_dss_clkctrl, &prcm->cm_sgx_sgx_clkctrl, &prcm->cm_l3init_hsusbhost_clkctrl, - &prcm->cm_l3init_fsusb_clkctrl, 0 }; |