According to the current deep sleep framework, the setting for CCI-400 registers will not execute when waking up. This patch moves the setting for CCI-400 Slave interfaces to board_early_init_f() which executes before dram_init(). This patch also moves the setting for enabling barrier transaction to fsl_dp_resume() which executes after dram_init().
Signed-off-by: Alison Wang alison.wang@freescale.com --- arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 2 ++ board/freescale/ls1021aqds/ls1021aqds.c | 28 ++++++++++++++++------- 2 files changed, 22 insertions(+), 8 deletions(-)
diff --git a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h index 2a1082f..a6068a2 100644 --- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h +++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h @@ -453,6 +453,8 @@ struct ccsr_ddr { #define CCI400_CTRLORD_TERM_BARRIER 0x00000008 #define CCI400_CTRLORD_EN_BARRIER 0 #define CCI400_SHAORD_NON_SHAREABLE 0x00000002 +#define CCI400_DVM_MESSAGE_REQ_EN 0x00000002 +#define CCI400_SNOOP_REQ_EN 0x00000001
/* CCI-400 registers */ struct ccsr_cci400 { diff --git a/board/freescale/ls1021aqds/ls1021aqds.c b/board/freescale/ls1021aqds/ls1021aqds.c index 8fe59a5..485f412 100644 --- a/board/freescale/ls1021aqds/ls1021aqds.c +++ b/board/freescale/ls1021aqds/ls1021aqds.c @@ -188,6 +188,21 @@ int board_early_init_f(void) out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL); #endif
+ /* + * Enable snoop requests and DVM message requests for + * Slave insterface S4 (A7 core cluster) + */ + out_le32(&cci->slave[4].snoop_ctrl, + CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN); + + /* + * Set CCI-400 Slave interface S0, S1, S2 Shareable Override Register + * All transactions are treated as non-shareable + */ + out_le32(&cci->slave[0].sha_ord, CCI400_SHAORD_NON_SHAREABLE); + out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE); + out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE); + /* Workaround for the issue that DDR could not respond to * barrier transaction which is generated by executing DSB/ISB * instruction. Set CCI-400 control override register to @@ -511,14 +526,6 @@ int board_init(void) /* Set CCI-400 control override register to * enable barrier transaction */ out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER); - out_le32(0x1185000, 0x3); - /* - * Set CCI-400 Slave interface S0, S1, S2 Shareable Override Register - * All transactions are treated as non-shareable - */ - out_le32(&cci->slave[0].sha_ord, CCI400_SHAORD_NON_SHAREABLE); - out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE); - out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
@@ -658,10 +665,15 @@ int fsl_dp_resume(void) u32 start_addr; void (*kernel_resume)(void); struct ccsr_scfg *scfg = (void *)CONFIG_SYS_FSL_SCFG_ADDR; + struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
if (!is_warm_boot()) return 0;
+ /* Set CCI-400 control override register to + * enable barrier transaction */ + out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER); + #ifdef CONFIG_LS102XA_NS_ACESS enable_devices_ns_access(ns_dev, ARRAY_SIZE(ns_dev)); #endif