From f1a96ec1a9920854c3308a062caca0b339bd1e3b Mon Sep 17 00:00:00 2001 From: Chunhe Lan Date: Wed, 7 May 2014 10:50:20 +0800 Subject: [PATCH] fsl/pci: Add workaround for erratum A-005434 By default, all PEX inbound windows PEX_PEXIWARn[TRGT] are mapped to 0xF, which is local memory. But for BSC9132, 0xF is CCSR, 0x0 is local memory. Signed-off-by: Minghuan Lian Signed-off-by: Chunhe Lan Reviewed-by: York Sun --- arch/powerpc/cpu/mpc85xx/cmd_errata.c | 3 +++ arch/powerpc/include/asm/config_mpc85xx.h | 1 + drivers/pci/fsl_pci_init.c | 9 +++++++-- 3 files changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c index 9d8acd0aa1..3d37a7614f 100644 --- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c +++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c @@ -299,6 +299,9 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) #ifdef CONFIG_SYS_FSL_ERRATUM_A007212 check_erratum_a007212(); #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_A005434 + puts("Work-around for Erratum A-005434 enabled\n"); +#endif return 0; } diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index 8a7d4d8a1d..e124b07b25 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -591,6 +591,7 @@ #define CONFIG_SYS_FSL_ESDHC_P1010_BROKEN_SDCLK #define CONFIG_SYS_FSL_PCIE_COMPAT "fsl,qoriq-pcie-v2.2" #define CONFIG_SYS_FSL_ERRATUM_A005125 +#define CONFIG_SYS_FSL_ERRATUM_A005434 #define CONFIG_SYS_FSL_ERRATUM_I2C_A004447 #define CONFIG_SYS_FSL_A004447_SVR_REV 0x11 #define CONFIG_ESDHC_HC_BLK_ADDR diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c index 6317fb1324..3a41b0ec17 100644 --- a/drivers/pci/fsl_pci_init.c +++ b/drivers/pci/fsl_pci_init.c @@ -49,8 +49,13 @@ static void set_inbound_window(volatile pit_t *pi, u64 size) { u32 sz = (__ilog2_u64(size) - 1); - u32 flag = PIWAR_EN | PIWAR_LOCAL | - PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP; +#ifdef CONFIG_SYS_FSL_ERRATUM_A005434 + u32 flag = 0; +#else + u32 flag = PIWAR_LOCAL; +#endif + + flag |= PIWAR_EN | PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP; out_be32(&pi->pitar, r->phys_start >> 12); out_be32(&pi->piwbar, r->bus_start >> 12); -- 2.30.2