stm32mp: fdt: update etzpc for STM32MP15x

Introduce STM32MP15 function and defines to prepare the
STM32MP13 introduction.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Change-Id: I909b205e73dcf207e0216aae5905c3c52472020e

diff --git a/arch/arm/mach-stm32mp/fdt.c b/arch/arm/mach-stm32mp/fdt.c
index 687543e712b57daba18b37f110c380e2a32c33cc..94c85fedcd40548b6f69caf62c311c809c882a1f 100644 (file)
--- a/arch/arm/mach-stm32mp/fdt.c
+++ b/arch/arm/mach-stm32mp/fdt.c
@@ -28,13 +28,13 @@
 
 #define ETZPC_RESERVED         0xffffffff
 
-#define STM32_FDCAN_BASE       0x4400e000
-#define STM32_CRYP2_BASE       0x4c005000
-#define STM32_CRYP1_BASE       0x54001000
-#define STM32_GPU_BASE         0x59000000
-#define STM32_DSI_BASE         0x5a000000
+#define STM32MP15_FDCAN_BASE   0x4400e000
+#define STM32MP15_CRYP2_BASE   0x4c005000
+#define STM32MP15_CRYP1_BASE   0x54001000
+#define STM32MP15_GPU_BASE     0x59000000
+#define STM32MP15_DSI_BASE     0x5a000000
 
-static const u32 stm32mp1_ip_addr[] = {
+static const u32 stm32mp15_ip_addr[] = {
        0x5c008000,     /* 00 stgenc */
        0x54000000,     /* 01 bkpsram */
        0x5c003000,     /* 02 iwdg1 */
@@ -44,7 +44,7 @@ static const u32 stm32mp1_ip_addr[] = {
        ETZPC_RESERVED, /* 06 reserved */
        0x54003000,     /* 07 rng1 */
        0x54002000,     /* 08 hash1 */
-       STM32_CRYP1_BASE,       /* 09 cryp1 */
+       STM32MP15_CRYP1_BASE,   /* 09 cryp1 */
        0x5a003000,     /* 0A ddrctrl */
        0x5a004000,     /* 0B ddrphyc */
        0x5c009000,     /* 0C i2c6 */
@@ -97,7 +97,7 @@ static const u32 stm32mp1_ip_addr[] = {
        0x4400b000,     /* 3B sai2 */
        0x4400c000,     /* 3C sai3 */
        0x4400d000,     /* 3D dfsdm */
-       STM32_FDCAN_BASE,       /* 3E tt_fdcan */
+       STM32MP15_FDCAN_BASE,   /* 3E tt_fdcan */
        ETZPC_RESERVED, /* 3F reserved */
        0x50021000,     /* 40 lptim2 */
        0x50022000,     /* 41 lptim3 */
@@ -110,7 +110,7 @@ static const u32 stm32mp1_ip_addr[] = {
        0x48003000,     /* 48 adc */
        0x4c002000,     /* 49 hash2 */
        0x4c003000,     /* 4A rng2 */
-       STM32_CRYP2_BASE,       /* 4B cryp2 */
+       STM32MP15_CRYP2_BASE,   /* 4B cryp2 */
        ETZPC_RESERVED, /* 4C reserved */
        ETZPC_RESERVED, /* 4D reserved */
        ETZPC_RESERVED, /* 4E reserved */
@@ -163,8 +163,13 @@ static int stm32_fdt_fixup_etzpc(void *fdt, int soc_node)
        int offset, shift;
        u32 addr, status, decprot[ETZPC_DECPROT_NB];
 
-       array = stm32mp1_ip_addr;
-       array_size = ARRAY_SIZE(stm32mp1_ip_addr);
+       if (IS_ENABLED(CONFIG_STM32MP13x))
+               return 0;
+
+       if (IS_ENABLED(CONFIG_STM32MP15x)) {
+               array = stm32mp15_ip_addr;
+               array_size = ARRAY_SIZE(stm32mp15_ip_addr);
+       }
 
        for (i = 0; i < ETZPC_DECPROT_NB; i++)
                decprot[i] = readl(ETZPC_DECPROT(i));
@@ -248,36 +253,9 @@ static void stm32_fdt_disable_optee(void *blob)
        }
 }
 
-/*
- * This function is called right before the kernel is booted. "blob" is the
- * device tree that will be passed to the kernel.
- */
-int ft_system_setup(void *blob, struct bd_info *bd)
+static void stm32mp15_fdt_fixup(void *blob, int soc, u32 cpu, char *name)
 {
-       int ret = 0;
-       int soc;
-       u32 pkg, cpu;
-       char name[SOC_NAME_SIZE];
-
-       if (IS_ENABLED(CONFIG_STM32MP13x))
-               return 0;
-
-       soc = fdt_path_offset(blob, "/soc");
-       /* when absent, nothing to do */
-       if (soc == -FDT_ERR_NOTFOUND)
-               return 0;
-       if (soc < 0)
-               return soc;
-
-       if (CONFIG_IS_ENABLED(STM32_ETZPC)) {
-               ret = stm32_fdt_fixup_etzpc(blob, soc);
-               if (ret)
-                       return ret;
-       }
-
-       /* MPUs Part Numbers and name*/
-       cpu = get_cpu_type();
-       get_soc_name(name);
+       u32 pkg;
 
        switch (cpu) {
        case CPU_STM32MP151Fxx:
@@ -287,19 +265,18 @@ int ft_system_setup(void *blob, struct bd_info *bd)
                stm32_fdt_fixup_cpu(blob, name);
                /* after cpu delete we can't trust the soc offsets anymore */
                soc = fdt_path_offset(blob, "/soc");
-               stm32_fdt_disable(blob, soc, STM32_FDCAN_BASE, "can", name);
-               /* fall through */
+               stm32_fdt_disable(blob, soc, STM32MP15_FDCAN_BASE, "can", name);
+               fallthrough;
        case CPU_STM32MP153Fxx:
        case CPU_STM32MP153Dxx:
        case CPU_STM32MP153Cxx:
        case CPU_STM32MP153Axx:
-               stm32_fdt_disable(blob, soc, STM32_GPU_BASE, "gpu", name);
-               stm32_fdt_disable(blob, soc, STM32_DSI_BASE, "dsi", name);
+               stm32_fdt_disable(blob, soc, STM32MP15_GPU_BASE, "gpu", name);
+               stm32_fdt_disable(blob, soc, STM32MP15_DSI_BASE, "dsi", name);
                break;
        default:
                break;
        }
-
        switch (cpu) {
        case CPU_STM32MP157Dxx:
        case CPU_STM32MP157Axx:
@@ -307,13 +284,14 @@ int ft_system_setup(void *blob, struct bd_info *bd)
        case CPU_STM32MP153Axx:
        case CPU_STM32MP151Dxx:
        case CPU_STM32MP151Axx:
-               stm32_fdt_disable(blob, soc, STM32_CRYP1_BASE, "cryp", name);
-               stm32_fdt_disable(blob, soc, STM32_CRYP2_BASE, "cryp", name);
+               stm32_fdt_disable(blob, soc, STM32MP15_CRYP1_BASE, "cryp",
+                                 name);
+               stm32_fdt_disable(blob, soc, STM32MP15_CRYP2_BASE, "cryp",
+                                 name);
                break;
        default:
                break;
        }
-
        switch (get_cpu_package()) {
        case STM32MP15_PKG_AA_LBGA448:
                pkg = STM32MP_PKG_AA;
@@ -337,18 +315,51 @@ int ft_system_setup(void *blob, struct bd_info *bd)
                do_fixup_by_compat_u32(blob, "st,stm32mp157-z-pinctrl",
                                       "st,package", pkg, false);
        }
+}
+
+/*
+ * This function is called right before the kernel is booted. "blob" is the
+ * device tree that will be passed to the kernel.
+ */
+int ft_system_setup(void *blob, struct bd_info *bd)
+{
+       int ret = 0;
+       int soc;
+       u32 cpu;
+       char name[SOC_NAME_SIZE];
 
-       /*
-        * TEMP: remove OP-TEE nodes in kernel device tree
-        *       copied from U-Boot device tree by optee_copy_fdt_nodes
-        *       when OP-TEE is not detected (probe failed)
-        * these OP-TEE nodes are present in <board>-u-boot.dtsi
-        * under CONFIG_STM32MP15x_STM32IMAGE only for compatibility
-        * when FIP is not used by TF-A
-        */
-       if (CONFIG_IS_ENABLED(STM32MP15x_STM32IMAGE) &&
-           !tee_find_device(NULL, NULL, NULL, NULL))
-               stm32_fdt_disable_optee(blob);
+       soc = fdt_path_offset(blob, "/soc");
+       /* when absent, nothing to do */
+       if (soc == -FDT_ERR_NOTFOUND)
+               return 0;
+       if (soc < 0)
+               return soc;
+
+       if (CONFIG_IS_ENABLED(STM32_ETZPC)) {
+               ret = stm32_fdt_fixup_etzpc(blob, soc);
+               if (ret)
+                       return ret;
+       }
+
+       /* MPUs Part Numbers and name*/
+       cpu = get_cpu_type();
+       get_soc_name(name);
+
+       if (IS_ENABLED(CONFIG_STM32MP15x)) {
+               stm32mp15_fdt_fixup(blob, soc, cpu, name);
+
+               /*
+                * TEMP: remove OP-TEE nodes in kernel device tree
+                *       copied from U-Boot device tree by optee_copy_fdt_nodes
+                *       when OP-TEE is not detected (probe failed)
+                * these OP-TEE nodes are present in <board>-u-boot.dtsi
+                * under CONFIG_STM32MP15x_STM32IMAGE only for compatibility
+                * when FIP is not used by TF-A
+                */
+               if (CONFIG_IS_ENABLED(STM32MP15x_STM32IMAGE) &&
+                   !tee_find_device(NULL, NULL, NULL, NULL))
+                       stm32_fdt_disable_optee(blob);
+       }
 
        return ret;
 }