[U-Boot] [RESEND V7 1/2] armv8/ls1043a: fixup GIC offset for ls1043a rev1

[U-Boot] [RESEND V7 1/2] armv8/ls1043a: fixup GIC offset for ls1043a rev1

[Wenbin song]

The LS1043A rev1.1 silicon supports two types of GIC offset: 4K alignment
and 64K alignment. The bit SCFG_GIC400_ALIGN[GIC_ADDR_BIT] is used to choose
which offset will be used.

The LS1043A rev1.0 silicon only supports the CIG offset with 4K alignment.

If GIC_ADDR_BIT bit is set, 4K alignment is used, or else 64K alignment is used.
64K alignment is the default setting.

Overriding the weak smp_kick_all_cpus, the new impletment is able to detect
GIC offset.

The default GIC offset in kernel device tree is using 4K alignment, it
need to be fixed if 64K alignment is detected.

Signed-off-by: Wenbin Song <wenbin.song@nxp.com>
Signed-off-by: Mingkai Hu <mingkai.hu@nxp.com>
---
Changes in v7:
	Use the full SVR to check if a Soc needs the fix.
	Use 4K alignment as the default alignment.
---
 arch/arm/cpu/armv8/fsl-layerscape/Kconfig          |  4 ++
 arch/arm/cpu/armv8/fsl-layerscape/fdt.c            | 64 ++++++++++++++++++++++
 arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S       | 55 +++++++++++++++++--
 arch/arm/include/asm/arch-fsl-layerscape/config.h  | 24 ++++++++
 .../include/asm/arch-fsl-layerscape/immap_lsch2.h  |  3 +-
 arch/arm/include/asm/arch-fsl-layerscape/soc.h     |  1 +
 6 files changed, 146 insertions(+), 5 deletions(-)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index cc0dc88..cb24ce7 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -168,4 +168,8 @@ config SYS_FSL_DDR4
 	help
 	  Enable Freescale DDR4 controller.
 
+config HAS_FEATURE_GIC64K_ALIGN
+       bool
+       default y if ARCH_LS1043A
+
 endmenu
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index c10ccf9..3244a21 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
@@ -133,6 +133,67 @@ void fsl_fdt_disable_usb(void *blob)
 	}
 }
 
+#ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
+static void fdt_fixup_gic(void *blob)
+{
+	int offset, err;
+	u64 reg[8];
+	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+	unsigned int val;
+	struct ccsr_scfg __iomem *scfg = (void *)CONFIG_SYS_FSL_SCFG_ADDR;
+	int align_64k = 0;
+
+	val = gur_in32(&gur->svr);
+
+	if (SVR_SOC_VER(val) != SVR_LS1043A) {
+		align_64k = 1;
+	} else if (SVR_REV(val) != REV1_0) {
+		val = scfg_in32(&scfg->gic_align) & (0x01 << GIC_ADDR_BIT);
+		if (!val)
+			align_64k = 1;
+	}
+
+	offset = fdt_subnode_offset(blob, 0, "interrupt-controller at 1400000");
+	if (offset < 0) {
+		printf("WARNING: fdt_subnode_offset can't find node %s: %s\n",
+		       "interrupt-controller at 1400000", fdt_strerror(offset));
+		return;
+	}
+
+	/* Fixup gic node align with 64K */
+	if (align_64k) {
+		reg[0] = cpu_to_fdt64(GICD_BASE_64K);
+		reg[1] = cpu_to_fdt64(GICD_SIZE_64K);
+		reg[2] = cpu_to_fdt64(GICC_BASE_64K);
+		reg[3] = cpu_to_fdt64(GICC_SIZE_64K);
+		reg[4] = cpu_to_fdt64(GICH_BASE_64K);
+		reg[5] = cpu_to_fdt64(GICH_SIZE_64K);
+		reg[6] = cpu_to_fdt64(GICV_BASE_64K);
+		reg[7] = cpu_to_fdt64(GICV_SIZE_64K);
+	} else {
+	/* Fixup gic node align with 4K */
+		reg[0] = cpu_to_fdt64(GICD_BASE);
+		reg[1] = cpu_to_fdt64(GICD_SIZE);
+		reg[2] = cpu_to_fdt64(GICC_BASE);
+		reg[3] = cpu_to_fdt64(GICC_SIZE);
+		reg[4] = cpu_to_fdt64(GICH_BASE);
+		reg[5] = cpu_to_fdt64(GICH_SIZE);
+		reg[6] = cpu_to_fdt64(GICV_BASE);
+		reg[7] = cpu_to_fdt64(GICV_SIZE);
+	}
+
+	err = fdt_setprop(blob, offset, "reg", reg, sizeof(reg));
+	if (err < 0) {
+		printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
+		       "reg", "interrupt-controller@1400000",
+		       fdt_strerror(err));
+		return;
+	}
+
+	return;
+}
+#endif
+
 void ft_cpu_setup(void *blob, bd_t *bd)
 {
 #ifdef CONFIG_FSL_LSCH2
@@ -177,4 +238,7 @@ void ft_cpu_setup(void *blob, bd_t *bd)
 #endif
 	fsl_fdt_disable_usb(blob);
 
+#ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
+	fdt_fixup_gic(blob);
+#endif
 }
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S
index 72f2c11..67c9636 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S
+++ b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S
@@ -19,6 +19,53 @@
 #endif
 #include <asm/u-boot.h>
 
+/* Get GIC offset
+* For LS1043a rev1.0, GIC base address align with 4k.
+* For LS1043a rev1.1, if DCFG_GIC400_ALIGN[GIC_ADDR_BIT]
+* is set, GIC base address align with 4K, or else align
+* with 64k.
+* output:
+*	x0: the base address of GICD
+*	x1: the base address of GICC
+*/
+ENTRY(get_gic_offset)
+	ldr     x0, =GICD_BASE
+	ldr     x1, =GICC_BASE
+#ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
+	ldr     x2, =DCFG_CCSR_SVR
+	ldr	w2, [x2]
+	rev	w2, w2
+	mov	w3, w2
+	ands	w3, w3, #SVR_E_MASK
+	mov	w4, #LS1043A_SVR
+	cmp	w3, w4
+	b.ne	1f
+	ands	w2, w2, #0xff
+	cmp	w2, #REV1_0
+	b.eq	1f
+	ldr	x2, =SCFG_GIC400_ALIGN
+	ldr	w2, [x2]
+	rev	w2, w2
+	tbnz	w2, #GIC_ADDR_BIT, 1f
+	ldr     x0, =GICD_BASE_64K
+	ldr     x1, =GICC_BASE_64K
+1:
+#endif
+	ret
+ENDPROC(get_gic_offset)
+
+ENTRY(smp_kick_all_cpus)
+	/* Kick secondary cpus up by SGI 0 interrupt */
+#if defined(CONFIG_GICV2) || defined(CONFIG_GICV3)
+	mov	x29, lr			/* Save LR */
+	bl	get_gic_offset
+	bl	gic_kick_secondary_cpus
+	mov	lr, x29			/* Restore LR */
+#endif
+	ret
+ENDPROC(smp_kick_all_cpus)
+
+
 ENTRY(lowlevel_init)
 	mov	x29, lr			/* Save LR */
 
@@ -110,15 +157,14 @@ ENTRY(lowlevel_init)
 	/* Initialize GIC Secure Bank Status */
 #if defined(CONFIG_GICV2) || defined(CONFIG_GICV3)
 	branch_if_slave x0, 1f
-	ldr	x0, =GICD_BASE
+	bl	get_gic_offset
 	bl	gic_init_secure
 1:
 #ifdef CONFIG_GICV3
 	ldr	x0, =GICR_BASE
 	bl	gic_init_secure_percpu
 #elif defined(CONFIG_GICV2)
-	ldr	x0, =GICD_BASE
-	ldr	x1, =GICC_BASE
+	bl	get_gic_offset
 	bl	gic_init_secure_percpu
 #endif
 #endif
@@ -356,7 +402,8 @@ ENTRY(secondary_boot_func)
 #if defined(CONFIG_GICV3)
 	gic_wait_for_interrupt_m x0
 #elif defined(CONFIG_GICV2)
-        ldr     x0, =GICC_BASE
+	bl	get_gic_offset
+	mov	x0, x1
         gic_wait_for_interrupt_m x0, w1
 #endif
 
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/config.h b/arch/arm/include/asm/arch-fsl-layerscape/config.h
index c50894a..577f00c 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/config.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/config.h
@@ -174,6 +174,30 @@
 /* Generic Interrupt Controller Definitions */
 #define GICD_BASE		0x01401000
 #define GICC_BASE		0x01402000
+#define GICH_BASE		0x01404000
+#define GICV_BASE		0x01406000
+#define GICD_SIZE		0x1000
+#define GICC_SIZE		0x2000
+#define GICH_SIZE		0x2000
+#define GICV_SIZE		0x2000
+#ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
+#define GICD_BASE_64K		0x01410000
+#define GICC_BASE_64K		0x01420000
+#define GICH_BASE_64K		0x01440000
+#define GICV_BASE_64K		0x01460000
+#define GICD_SIZE_64K		0x10000
+#define GICC_SIZE_64K		0x20000
+#define GICH_SIZE_64K		0x20000
+#define GICV_SIZE_64K		0x20000
+#endif
+
+#define DCFG_CCSR_SVR		0x1ee00a4
+#define REV1_0			0x10
+#define REV1_1			0x11
+#define GIC_ADDR_BIT		31
+#define SCFG_GIC400_ALIGN	0x1570188
+#define LS1043A_SVR		0x87920000
+#define SVR_E_MASK		0xFFFFFE00
 
 #define CONFIG_SYS_FSL_ERRATUM_A008850
 #define CONFIG_SYS_FSL_ERRATUM_A009663
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
index b3cfd89..81bc5bc 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
@@ -360,7 +360,8 @@ struct ccsr_scfg {
 	u32 qspi_cfg;
 	u8 res_160[0x180-0x160];
 	u32 dmamcr;
-	u8 res_184[0x18c-0x184];
+	u8 res_184[0x188-0x184];
+	u32 gic_align;
 	u32 debug_icid;
 	u8 res_190[0x1a4-0x190];
 	u32 snpcnfgcr;
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/soc.h b/arch/arm/include/asm/arch-fsl-layerscape/soc.h
index 78363b6..1deb330 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/soc.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/soc.h
@@ -59,6 +59,7 @@ struct cpu_type {
 
 #define SVR_MAJ(svr)		(((svr) >> 4) & 0xf)
 #define SVR_MIN(svr)		(((svr) >> 0) & 0xf)
+#define SVR_REV(svr)		(((svr) >> 0) & 0xff)
 #define SVR_SOC_VER(svr)	(((svr) >> 8) & SVR_WO_E)
 #define IS_E_PROCESSOR(svr)	(!((svr >> 8) & 0x1))
 #define IS_SVR_REV(svr, maj, min) \
-- 
2.1.0.27.g96db324

[U-Boot] [RESEND V7 2/2] armv8/fsl-layerscape: fdt: fixup LS1043A rev1 MSI node

[Wenbin song]

The default MSI node in kernel tree is for LS1043A rev1.0 silicon,
if rev1.1 silicon used, need to fixup the MSI node to match it.

Signed-off-by: Wenbin Song <wenbin.song@nxp.com>
Signed-off-by: Mingkai Hu <mingkai.hu@nxp.com>
---
Changes in v7:
	Use a new MSI node on rev1.1.
---
 arch/arm/cpu/armv8/fsl-layerscape/Kconfig |   3 +
 arch/arm/cpu/armv8/fsl-layerscape/fdt.c   | 154 ++++++++++++++++++++++++++++++
 2 files changed, 157 insertions(+)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index cb24ce7..0941bf8 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -172,4 +172,7 @@ config HAS_FEATURE_GIC64K_ALIGN
        bool
        default y if ARCH_LS1043A
 
+config HAS_FEATURE_ENHANCED_MSI
+       bool
+       default y if ARCH_LS1043A
 endmenu
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index 3244a21..4a1683a 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
@@ -194,6 +194,157 @@ static void fdt_fixup_gic(void *blob)
 }
 #endif
 
+#ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
+static int _fdt_fixup_msi_node(void *blob, const char *name,
+				  int irq_0, int irq_1, int rev)
+{
+	int err, offset, len;
+	u32 tmp[4][3];
+	void *p;
+
+	offset = fdt_path_offset(blob, name);
+	if (offset < 0) {
+		printf("WARNING: fdt_path_offset can't find path %s: %s\n",
+		       name, fdt_strerror(offset));
+		return 0;
+	}
+
+	/*fixup the property of interrupts*/
+
+	tmp[0][0] = cpu_to_fdt32(0x0);
+	tmp[0][1] = cpu_to_fdt32(irq_0);
+	tmp[0][2] = cpu_to_fdt32(0x4);
+
+	if (rev > REV1_0) {
+		tmp[1][0] = cpu_to_fdt32(0x0);
+		tmp[1][1] = cpu_to_fdt32(irq_1);
+		tmp[1][2] = cpu_to_fdt32(0x4);
+		tmp[2][0] = cpu_to_fdt32(0x0);
+		tmp[2][1] = cpu_to_fdt32(irq_1 + 1);
+		tmp[2][2] = cpu_to_fdt32(0x4);
+		tmp[3][0] = cpu_to_fdt32(0x0);
+		tmp[3][1] = cpu_to_fdt32(irq_1 + 2);
+		tmp[3][2] = cpu_to_fdt32(0x4);
+		len = sizeof(tmp);
+	} else {
+		len = sizeof(tmp[0]);
+	}
+
+	err = fdt_setprop(blob, offset, "interrupts", tmp, len);
+	if (err < 0) {
+		printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
+		       "interrupts", name, fdt_strerror(err));
+		return 0;
+	}
+
+	/*fixup the property of reg*/
+	p = (char *)fdt_getprop(blob, offset, "reg", &len);
+	if (!p) {
+		printf("WARNING: fdt_getprop can't get %s from node %s\n",
+		       "reg", name);
+		return 0;
+	}
+
+	memcpy((char *)tmp, p, len);
+
+	if (rev > REV1_0)
+		*((u32 *)tmp + 3) = cpu_to_fdt32(0x1000);
+	else
+		*((u32 *)tmp + 3) = cpu_to_fdt32(0x8);
+
+	err = fdt_setprop(blob, offset, "reg", tmp, len);
+	if (err < 0) {
+		printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
+		       "reg", name, fdt_strerror(err));
+		return 0;
+	}
+
+	/*fixup the property of compatible*/
+	if (rev > REV1_0)
+		err = fdt_setprop_string(blob, offset, "compatible",
+					 "fsl,ls1043a-v1.1-msi");
+	else
+		err = fdt_setprop_string(blob, offset, "compatible",
+					 "fsl,ls1043a-msi");
+	if (err < 0) {
+		printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
+		       "compatible", name, fdt_strerror(err));
+		return 0;
+	}
+
+	return 1;
+}
+
+static int _fdt_fixup_pci_msi(void *blob, const char *name, int rev)
+{
+	int offset, len, err;
+	void *p;
+	int val;
+	u32 tmp[4][8];
+
+	offset = fdt_path_offset(blob, name);
+	if (offset < 0) {
+		printf("WARNING: fdt_path_offset can't find path %s: %s\n",
+		       name, fdt_strerror(offset));
+		return 0;
+	}
+
+	p = (char *)fdt_getprop(blob, offset, "interrupt-map", &len);
+	if (!p || len != sizeof(tmp)) {
+		printf("WARNING: fdt_getprop can't get %s from node %s\n",
+		       "interrupt-map", name);
+		return 0;
+	}
+
+	memcpy((char *)tmp, p, len);
+
+	val = fdt32_to_cpu(tmp[0][6]);
+	if (rev > REV1_0) {
+		tmp[1][6] = cpu_to_fdt32(val + 1);
+		tmp[2][6] = cpu_to_fdt32(val + 2);
+		tmp[3][6] = cpu_to_fdt32(val + 3);
+	} else {
+		tmp[1][6] = cpu_to_fdt32(val);
+		tmp[2][6] = cpu_to_fdt32(val);
+		tmp[3][6] = cpu_to_fdt32(val);
+	}
+
+	err = fdt_setprop(blob, offset, "interrupt-map", tmp, sizeof(tmp));
+	if (err < 0) {
+		printf("WARNING: fdt_setprop can't set %s from node %s: %s.\n",
+		       "interrupt-map", name, fdt_strerror(err));
+		return 0;
+	}
+	return 1;
+}
+
+/* Fixup msi node for ls1043a rev1.1*/
+
+static void fdt_fixup_msi(void *blob)
+{
+	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+	unsigned int rev;
+
+	rev = gur_in32(&gur->svr);
+
+	if (SVR_SOC_VER(rev) != SVR_LS1043A)
+		return;
+
+	rev = SVR_REV(rev);
+
+	_fdt_fixup_msi_node(blob, "/soc/msi-controller1 at 1571000",
+			    116, 111, rev);
+	_fdt_fixup_msi_node(blob, "/soc/msi-controller2 at 1572000",
+			    126, 121, rev);
+	_fdt_fixup_msi_node(blob, "/soc/msi-controller3 at 1573000",
+			    160, 155, rev);
+
+	_fdt_fixup_pci_msi(blob, "/soc/pcie at 3400000", rev);
+	_fdt_fixup_pci_msi(blob, "/soc/pcie at 3500000", rev);
+	_fdt_fixup_pci_msi(blob, "/soc/pcie at 3600000", rev);
+}
+#endif
+
 void ft_cpu_setup(void *blob, bd_t *bd)
 {
 #ifdef CONFIG_FSL_LSCH2
@@ -241,4 +392,7 @@ void ft_cpu_setup(void *blob, bd_t *bd)
 #ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
 	fdt_fixup_gic(blob);
 #endif
+#ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
+	fdt_fixup_msi(blob);
+#endif
 }
-- 
2.1.0.27.g96db324