From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhiqiang Hou Date: Mon, 4 Jul 2016 14:28:16 +0800 Subject: [U-Boot] [PATCH 4/5] fsl: csu: add an API to disable all R/W permission to PCIe In-Reply-To: <1467613697-18128-1-git-send-email-Zhiqiang.Hou@nxp.com> References: <1467613697-18128-1-git-send-email-Zhiqiang.Hou@nxp.com> Message-ID: <1467613697-18128-4-git-send-email-Zhiqiang.Hou@nxp.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de From: Hou Zhiqiang Signed-off-by: Hou Zhiqiang --- .../include/asm/arch-fsl-layerscape/ns_access.h | 1 + board/freescale/common/ns_access.c | 28 ++++++++++++++++++++++ include/fsl_csu.h | 1 + 3 files changed, 30 insertions(+) diff --git a/arch/arm/include/asm/arch-fsl-layerscape/ns_access.h b/arch/arm/include/asm/arch-fsl-layerscape/ns_access.h index db76066..f46f1d8 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/ns_access.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/ns_access.h @@ -6,6 +6,7 @@ #ifndef __FSL_NS_ACCESS_H_ #define __FSL_NS_ACCESS_H_ +#include enum csu_cslx_ind { CSU_CSLX_PCIE2_IO = 0, diff --git a/board/freescale/common/ns_access.c b/board/freescale/common/ns_access.c index c3d7a5e..80e4b61 100644 --- a/board/freescale/common/ns_access.c +++ b/board/freescale/common/ns_access.c @@ -8,6 +8,7 @@ #include #include #include +#include void set_devices_ns_access(struct csu_ns_dev *ns_dev, u16 val) { @@ -40,3 +41,30 @@ void enable_layerscape_ns_access(void) { enable_devices_ns_access(ns_dev, ARRAY_SIZE(ns_dev)); } + +void disable_pcie_ns_access(int pcie) +{ + switch (pcie) { +#ifdef CONFIG_PCIE1 + case PCIE1: + set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE1], 0); + set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE1_IO], 0); + return; +#endif +#ifdef CONFIG_PCIE2 + case PCIE2: + set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE2], 0); + set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE2_IO], 0); + return; +#endif +#ifdef CONFIG_PCIE3 + case PCIE3: + set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE3], 0); + set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE3_IO], 0); + return; +#endif + default: + debug("The PCIE%d doesn't exist!\n", pcie); + return; + } +} diff --git a/include/fsl_csu.h b/include/fsl_csu.h index 57a9985..42ca433 100644 --- a/include/fsl_csu.h +++ b/include/fsl_csu.h @@ -31,5 +31,6 @@ struct csu_ns_dev { void enable_layerscape_ns_access(void); void set_devices_ns_access(struct csu_ns_dev *ns_dev, u16 val); +void disable_pcie_ns_access(int pcie); #endif -- 2.1.0.27.g96db324