From f1a96ec1a9920854c3308a062caca0b339bd1e3b Mon Sep 17 00:00:00 2001
From: Chunhe Lan <Chunhe.Lan@freescale.com>
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 <Minghuan.Lian@freescale.com>
Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
---
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);
--
2.39.5