From 644bc7ec5cee3a93ecb3adc364be6374d3f60a27 Mon Sep 17 00:00:00 2001 From: Jason Jin Date: Fri, 17 Oct 2014 15:26:32 +0800 Subject: [PATCH] arm: ls102xa: Add snoop disable for slave port 0, 1 and 2 Disable the snoop for slave interface 0, 1 and 2 to avoid the interleaving on the CCI400 BUS. Signed-off-by: Jason Jin Signed-off-by: Minghuan Lian Reviewed-by: York Sun --- arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 1 + board/freescale/ls1021aqds/ls1021aqds.c | 7 +++++++ board/freescale/ls1021atwr/ls1021atwr.c | 10 ++++++++++ 3 files changed, 18 insertions(+) diff --git a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h index b5db7205fc..9f4fbba38f 100644 --- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h +++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h @@ -448,6 +448,7 @@ struct ccsr_ddr { #define CCI400_CTRLORD_TERM_BARRIER 0x00000008 #define CCI400_CTRLORD_EN_BARRIER 0 +#define CCI400_SHAORD_NON_SHAREABLE 0x00000002 /* CCI-400 registers */ struct ccsr_cci400 { diff --git a/board/freescale/ls1021aqds/ls1021aqds.c b/board/freescale/ls1021aqds/ls1021aqds.c index bcfa9b9556..5154a85b2d 100644 --- a/board/freescale/ls1021aqds/ls1021aqds.c +++ b/board/freescale/ls1021aqds/ls1021aqds.c @@ -233,6 +233,13 @@ int board_init(void) /* Set CCI-400 control override register to * enable barrier transaction */ out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER); + /* + * 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); diff --git a/board/freescale/ls1021atwr/ls1021atwr.c b/board/freescale/ls1021atwr/ls1021atwr.c index a90bb09152..3e8981b39f 100644 --- a/board/freescale/ls1021atwr/ls1021atwr.c +++ b/board/freescale/ls1021atwr/ls1021atwr.c @@ -277,6 +277,16 @@ int board_early_init_f(void) int board_init(void) { + struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR; + + /* + * 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); + #ifndef CONFIG_SYS_FSL_NO_SERDES fsl_serdes_init(); config_serdes_mux(); -- 2.39.5