From: Rajendra Nayak <rnayak@xxxxxx> Restore all CM1/2 module registers as they are lost in OFF mode. [nm@xxxxxx: minor clean ups] Signed-off-by: Nishanth Menon <nm@xxxxxx> Signed-off-by: Rajendra Nayak <rnayak@xxxxxx> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx> Signed-off-by: Axel Haslam <axelhaslam@xxxxxxxxx> Signed-off-by: Tero Kristo <t-kristo@xxxxxx> --- arch/arm/mach-omap2/cm44xx.c | 322 ++++++++++++++++++++++++++++++++++++++++++ arch/arm/mach-omap2/cm44xx.h | 2 + 2 files changed, 324 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/cm44xx.c b/arch/arm/mach-omap2/cm44xx.c index 535d66e..fb5465b 100644 --- a/arch/arm/mach-omap2/cm44xx.c +++ b/arch/arm/mach-omap2/cm44xx.c @@ -21,8 +21,11 @@ #include "iomap.h" #include "common.h" #include "cm.h" +#include "cm44xx.h" #include "cm1_44xx.h" #include "cm2_44xx.h" +#include "cminst44xx.h" +#include "prcm44xx.h" #include "cm-regbits-44xx.h" /* CM1 hardware module low-level functions */ @@ -50,3 +53,322 @@ void omap4_cm2_write_inst_reg(u32 val, s16 inst, u16 reg) { __raw_writel(val, OMAP44XX_CM2_REGADDR(inst, reg)); } + +#define MAX_CM_REGISTERS 51 + +struct omap4_cm_reg { + u16 offset; + u32 val; +}; + +struct omap4_cm_regs { + u32 mod_off; + u32 no_reg; + struct omap4_cm_reg reg[MAX_CM_REGISTERS]; +}; + +static struct omap4_cm_regs cm1_regs[] = { + /* OMAP4430_CM1_OCP_SOCKET_MOD */ + { .mod_off = OMAP4430_CM1_OCP_SOCKET_INST, .no_reg = 1, + {{.offset = OMAP4_CM_CM1_PROFILING_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM1_CKGEN_MOD */ + { .mod_off = OMAP4430_CM1_CKGEN_INST, .no_reg = 4, + {{.offset = OMAP4_CM_CLKSEL_CORE_OFFSET}, + {.offset = OMAP4_CM_CLKSEL_ABE_OFFSET}, + {.offset = OMAP4_CM_DLL_CTRL_OFFSET}, + {.offset = OMAP4_CM_DYN_DEP_PRESCAL_OFFSET} }, + }, + /* OMAP4430_CM1_MPU_MOD */ + { .mod_off = OMAP4430_CM1_MPU_INST, .no_reg = 4, + {{.offset = OMAP4_CM_MPU_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_MPU_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_MPU_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_MPU_MPU_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM1_TESLA_MOD */ + { .mod_off = OMAP4430_CM1_TESLA_INST, .no_reg = 4, + {{.offset = OMAP4_CM_TESLA_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_TESLA_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_TESLA_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_TESLA_TESLA_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM1_ABE_MOD */ + { .mod_off = OMAP4430_CM1_ABE_INST, .no_reg = 15, + {{.offset = OMAP4_CM1_ABE_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_L4ABE_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_AESS_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_PDM_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_DMIC_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_MCASP_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_MCBSP1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_MCBSP2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_MCBSP3_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_SLIMBUS_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_TIMER5_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_TIMER6_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_TIMER7_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_TIMER8_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM1_ABE_WDT3_CLKCTRL_OFFSET} }, + }, +}; + +static struct omap4_cm_regs cm2_regs[] = { + /* OMAP4430_CM2_OCP_SOCKET_MOD */ + {.mod_off = OMAP4430_CM2_OCP_SOCKET_INST, .no_reg = 1, + {{.offset = OMAP4_CM_CM2_PROFILING_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM2_CKGEN_MOD */ + {.mod_off = OMAP4430_CM2_CKGEN_INST, .no_reg = 12, + {{.offset = OMAP4_CM_CLKSEL_DUCATI_ISS_ROOT_OFFSET}, + {.offset = OMAP4_CM_CLKSEL_USB_60MHZ_OFFSET}, + {.offset = OMAP4_CM_SCALE_FCLK_OFFSET}, + {.offset = OMAP4_CM_CORE_DVFS_PERF1_OFFSET}, + {.offset = OMAP4_CM_CORE_DVFS_PERF2_OFFSET}, + {.offset = OMAP4_CM_CORE_DVFS_PERF3_OFFSET}, + {.offset = OMAP4_CM_CORE_DVFS_PERF4_OFFSET}, + {.offset = OMAP4_CM_CORE_DVFS_CURRENT_OFFSET}, + {.offset = OMAP4_CM_IVA_DVFS_PERF_TESLA_OFFSET}, + {.offset = OMAP4_CM_IVA_DVFS_PERF_IVAHD_OFFSET}, + {.offset = OMAP4_CM_IVA_DVFS_PERF_ABE_OFFSET}, + {.offset = OMAP4_CM_IVA_DVFS_CURRENT_OFFSET} }, + }, + /* OMAP4430_CM2_ALWAYS_ON_MOD */ + {.mod_off = OMAP4430_CM2_ALWAYS_ON_INST, .no_reg = 6, + {{.offset = OMAP4_CM_ALWON_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_ALWON_MDMINTC_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_ALWON_SR_MPU_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_ALWON_SR_IVA_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_ALWON_SR_CORE_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_ALWON_USBPHY_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM2_CORE_MOD */ + {.mod_off = OMAP4430_CM2_CORE_INST, .no_reg = 41, + {{.offset = OMAP4_CM_L3_1_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_L3_1_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_L3_1_L3_1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3_2_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_L3_2_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_L3_2_L3_2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3_2_GPMC_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3_2_OCMC_RAM_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_DUCATI_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_DUCATI_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_DUCATI_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_DUCATI_DUCATI_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_SDMA_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_SDMA_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_SDMA_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_SDMA_SDMA_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_MEMIF_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_MEMIF_DMM_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_MEMIF_EMIF_FW_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_MEMIF_EMIF_1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_MEMIF_EMIF_2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_MEMIF_DLL_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_MEMIF_EMIF_H1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_MEMIF_EMIF_H2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_MEMIF_DLL_H_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_D2D_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_D2D_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_D2D_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_D2D_SAD2D_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_D2D_MODEM_ICR_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_D2D_SAD2D_FW_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4CFG_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_L4CFG_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_L4CFG_L4_CFG_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4CFG_HW_SEM_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4CFG_MAILBOX_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4CFG_SAR_ROM_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INSTR_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INSTR_L3_3_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INSTR_L3_INSTR_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INSTR_OCP_WP1_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM2_IVAHD_MOD */ + {.mod_off = OMAP4430_CM2_IVAHD_INST, .no_reg = 5, + {{.offset = OMAP4_CM_IVAHD_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_IVAHD_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_IVAHD_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_IVAHD_IVAHD_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_IVAHD_SL2_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM2_CAM_MOD */ + {.mod_off = OMAP4430_CM2_CAM_INST, .no_reg = 5, + {{.offset = OMAP4_CM_CAM_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_CAM_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_CAM_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_CAM_ISS_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_CAM_FDIF_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM2_DSS_MOD */ + {.mod_off = OMAP4430_CM2_DSS_INST, .no_reg = 5, + {{.offset = OMAP4_CM_DSS_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_DSS_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_DSS_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_DSS_DSS_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_DSS_DEISS_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM2_GFX_MOD */ + {.mod_off = OMAP4430_CM2_GFX_INST, .no_reg = 4, + {{.offset = OMAP4_CM_GFX_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_GFX_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_GFX_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_GFX_GFX_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM2_L3INIT_MOD */ + {.mod_off = OMAP4430_CM2_L3INIT_INST, .no_reg = 20, + {{.offset = OMAP4_CM_L3INIT_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_L3INIT_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_L3INIT_MMC1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_MMC2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_HSI_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_UNIPRO1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_USB_HOST_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_USB_OTG_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_USB_TLL_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_P1500_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_EMAC_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_SATA_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_TPPSS_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_PCIESS_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_CCPTX_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_XHPI_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_MMC6_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_USB_HOST_FS_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L3INIT_USBPHYOCP2SCP_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM2_L4PER_MOD */ + {.mod_off = OMAP4430_CM2_L4PER_INST, .no_reg = 51, + {{.offset = OMAP4_CM_L4PER_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_L4PER_ADC_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_DMTIMER10_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_DMTIMER11_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_DMTIMER2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_DMTIMER3_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_DMTIMER4_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_DMTIMER9_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_ELM_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_GPIO2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_GPIO3_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_GPIO4_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_GPIO5_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_GPIO6_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_HDQ1W_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_HECC1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_HECC2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_I2C1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_I2C2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_I2C3_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_I2C4_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_L4PER_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MCASP2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MCASP3_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MCBSP4_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MGATE_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MCSPI1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MCSPI2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MCSPI3_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MCSPI4_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MMCSD3_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MMCSD4_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MSPROHG_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_SLIMBUS2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_UART1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_UART2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_UART3_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_UART4_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_MMCSD5_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4PER_I2C5_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4SEC_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_L4SEC_STATICDEP_OFFSET}, + {.offset = OMAP4_CM_L4SEC_DYNAMICDEP_OFFSET}, + {.offset = OMAP4_CM_L4SEC_AES1_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4SEC_AES2_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4SEC_DES3DES_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4SEC_PKAEIP29_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4SEC_RNG_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4SEC_SHA2MD51_CLKCTRL_OFFSET}, + {.offset = OMAP4_CM_L4SEC_CRYPTODMA_CLKCTRL_OFFSET} }, + }, + /* OMAP4430_CM2_CEFUSE_MOD */ + {.mod_off = OMAP4430_CM2_CEFUSE_INST, .no_reg = 2, + {{.offset = OMAP4_CM_CEFUSE_CLKSTCTRL_OFFSET}, + {.offset = OMAP4_CM_CEFUSE_CEFUSE_CLKCTRL_OFFSET} }, + }, +}; + +static void omap4_cm1_prepare_off(void) +{ + u32 i, j; + struct omap4_cm_regs *cm_reg = cm1_regs; + + for (i = 0; i < ARRAY_SIZE(cm1_regs); i++, cm_reg++) { + for (j = 0; j < cm_reg->no_reg; j++) { + cm_reg->reg[j].val = + omap4_cminst_read_inst_reg(OMAP4430_CM1_PARTITION, + cm_reg->mod_off, + cm_reg->reg[j].offset); + } + } +} + +static void omap4_cm2_prepare_off(void) +{ + u32 i, j; + struct omap4_cm_regs *cm_reg = cm2_regs; + + for (i = 0; i < ARRAY_SIZE(cm2_regs); i++, cm_reg++) { + for (j = 0; j < cm_reg->no_reg; j++) { + cm_reg->reg[j].val = + omap4_cminst_read_inst_reg(OMAP4430_CM2_PARTITION, + cm_reg->mod_off, + cm_reg->reg[j].offset); + } + } +} + +static void omap4_cm1_resume_off(void) +{ + u32 i, j; + struct omap4_cm_regs *cm_reg = cm1_regs; + + for (i = 0; i < ARRAY_SIZE(cm1_regs); i++, cm_reg++) { + for (j = 0; j < cm_reg->no_reg; j++) { + omap4_cminst_write_inst_reg(cm_reg->reg[j].val, + OMAP4430_CM1_PARTITION, + cm_reg->mod_off, + cm_reg->reg[j].offset); + } + } +} + +static void omap4_cm2_resume_off(void) +{ + u32 i, j; + struct omap4_cm_regs *cm_reg = cm2_regs; + + for (i = 0; i < ARRAY_SIZE(cm2_regs); i++, cm_reg++) { + for (j = 0; j < cm_reg->no_reg; j++) { + omap4_cminst_write_inst_reg(cm_reg->reg[j].val, + OMAP4430_CM2_PARTITION, + cm_reg->mod_off, + cm_reg->reg[j].offset); + } + } +} + +void omap4_cm_prepare_off(void) +{ + omap4_cm1_prepare_off(); + omap4_cm2_prepare_off(); +} + +void omap4_cm_resume_off(void) +{ + omap4_cm1_resume_off(); + omap4_cm2_resume_off(); +} diff --git a/arch/arm/mach-omap2/cm44xx.h b/arch/arm/mach-omap2/cm44xx.h index 5fba0fa..b3b0f21 100644 --- a/arch/arm/mach-omap2/cm44xx.h +++ b/arch/arm/mach-omap2/cm44xx.h @@ -24,6 +24,8 @@ #define OMAP4_CM_STATICDEP 0x0004 #ifndef __ASSEMBLER__ +extern void omap4_cm_prepare_off(void); +extern void omap4_cm_resume_off(void); extern void omap4_dpll_prepare_off(void); extern void omap4_dpll_resume_off(void); #endif -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo 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