Merge branch 'master' of git://git.denx.de/u-boot-mips

6 files changed, 203 insertions, 35 deletions

diff --git a/arch/mips/cpu/mips32/cache.S b/arch/mips/cpu/mips32/cache.S
index 12f656c..22bd844 100644
--- a/arch/mips/cpu/mips32/cache.S
+++ b/arch/mips/cpu/mips32/cache.S
@@ -20,15 +20,6 @@
 
 #define RA		t9
 
-/*
- * 16kB is the maximum size of instruction and data caches on MIPS 4K,
- * 64kB is on 4KE, 24K, 5K, etc. Set bigger size for convenience.
- *
- * Note that the above size is the maximum size of primary cache. U-Boot
- * doesn't have L2 cache support for now.
- */
-#define MIPS_MAX_CACHE_SIZE	0x10000
-
 #define INDEX_BASE	CKSEG0
 
 	.macro	cache_op op addr
@@ -126,12 +117,85 @@ LEAF(mips_init_dcache)
  */
 NESTED(mips_cache_reset, 0, ra)
 	move	RA, ra
-	li	t2, CONFIG_SYS_ICACHE_SIZE
-	li	t3, CONFIG_SYS_DCACHE_SIZE
+
+#if !defined(CONFIG_SYS_ICACHE_SIZE) || !defined(CONFIG_SYS_DCACHE_SIZE) || \
+    !defined(CONFIG_SYS_CACHELINE_SIZE)
+	/* read Config1 for use below */
+	mfc0	t5, CP0_CONFIG, 1
+#endif
+
+#ifdef CONFIG_SYS_CACHELINE_SIZE
+	li	t7, CONFIG_SYS_CACHELINE_SIZE
 	li	t8, CONFIG_SYS_CACHELINE_SIZE
+#else
+	/* Detect I-cache line size. */
+	srl	t8, t5, MIPS_CONF1_IL_SHIFT
+	andi	t8, t8, (MIPS_CONF1_IL >> MIPS_CONF1_IL_SHIFT)
+	beqz	t8, 1f
+	li	t6, 2
+	sllv	t8, t6, t8
 
-	li	v0, MIPS_MAX_CACHE_SIZE
+1:	/* Detect D-cache line size. */
+	srl	t7, t5, MIPS_CONF1_DL_SHIFT
+	andi	t7, t7, (MIPS_CONF1_DL >> MIPS_CONF1_DL_SHIFT)
+	beqz	t7, 1f
+	li	t6, 2
+	sllv	t7, t6, t7
+1:
+#endif
 
+#ifdef CONFIG_SYS_ICACHE_SIZE
+	li	t2, CONFIG_SYS_ICACHE_SIZE
+#else
+	/* Detect I-cache size. */
+	srl	t6, t5, MIPS_CONF1_IS_SHIFT
+	andi	t6, t6, (MIPS_CONF1_IS >> MIPS_CONF1_IS_SHIFT)
+	li	t4, 32
+	xori	t2, t6, 0x7
+	beqz	t2, 1f
+	addi	t6, t6, 1
+	sllv	t4, t4, t6
+1:	/* At this point t4 == I-cache sets. */
+	mul	t2, t4, t8
+	srl	t6, t5, MIPS_CONF1_IA_SHIFT
+	andi	t6, t6, (MIPS_CONF1_IA >> MIPS_CONF1_IA_SHIFT)
+	addi	t6, t6, 1
+	/* At this point t6 == I-cache ways. */
+	mul	t2, t2, t6
+#endif
+
+#ifdef CONFIG_SYS_DCACHE_SIZE
+	li	t3, CONFIG_SYS_DCACHE_SIZE
+#else
+	/* Detect D-cache size. */
+	srl	t6, t5, MIPS_CONF1_DS_SHIFT
+	andi	t6, t6, (MIPS_CONF1_DS >> MIPS_CONF1_DS_SHIFT)
+	li	t4, 32
+	xori	t3, t6, 0x7
+	beqz	t3, 1f
+	addi	t6, t6, 1
+	sllv	t4, t4, t6
+1:	/* At this point t4 == I-cache sets. */
+	mul	t3, t4, t7
+	srl	t6, t5, MIPS_CONF1_DA_SHIFT
+	andi	t6, t6, (MIPS_CONF1_DA >> MIPS_CONF1_DA_SHIFT)
+	addi	t6, t6, 1
+	/* At this point t6 == I-cache ways. */
+	mul	t3, t3, t6
+#endif
+
+	/* Determine the largest L1 cache size */
+#if defined(CONFIG_SYS_ICACHE_SIZE) && defined(CONFIG_SYS_DCACHE_SIZE)
+#if CONFIG_SYS_ICACHE_SIZE > CONFIG_SYS_DCACHE_SIZE
+	li	v0, CONFIG_SYS_ICACHE_SIZE
+#else
+	li	v0, CONFIG_SYS_DCACHE_SIZE
+#endif
+#else
+	move	v0, t2
+	sltu	t1, t2, t3
+	movn	v0, t3, t1
+#endif
 	/*
 	 * Now clear that much memory starting from zero.
 	 */
@@ -163,7 +227,7 @@ NESTED(mips_cache_reset, 0, ra)
 	 * then initialize D-cache.
 	 */
 	move	a1, t3
-	move	a2, t8
+	move	a2, t7
 	PTR_LA	v1, mips_init_dcache
 	jalr	v1
 
diff --git a/arch/mips/cpu/mips32/cpu.c b/arch/mips/cpu/mips32/cpu.c
index 28d5c45..278865b 100644
--- a/arch/mips/cpu/mips32/cpu.c
+++ b/arch/mips/cpu/mips32/cpu.c
@@ -34,28 +34,89 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	return 0;
 }
 
+#ifdef CONFIG_SYS_CACHELINE_SIZE
+
+static inline unsigned long icache_line_size(void)
+{
+	return CONFIG_SYS_CACHELINE_SIZE;
+}
+
+static inline unsigned long dcache_line_size(void)
+{
+	return CONFIG_SYS_CACHELINE_SIZE;
+}
+
+#else /* !CONFIG_SYS_CACHELINE_SIZE */
+
+static inline unsigned long icache_line_size(void)
+{
+	unsigned long conf1, il;
+	conf1 = read_c0_config1();
+	il = (conf1 & MIPS_CONF1_IL) >> MIPS_CONF1_IL_SHIFT;
+	if (!il)
+		return 0;
+	return 2 << il;
+}
+
+static inline unsigned long dcache_line_size(void)
+{
+	unsigned long conf1, dl;
+	conf1 = read_c0_config1();
+	dl = (conf1 & MIPS_CONF1_DL) >> MIPS_CONF1_DL_SHIFT;
+	if (!dl)
+		return 0;
+	return 2 << dl;
+}
+
+#endif /* !CONFIG_SYS_CACHELINE_SIZE */
+
 void flush_cache(ulong start_addr, ulong size)
 {
-	unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
-	unsigned long addr = start_addr & ~(lsize - 1);
-	unsigned long aend = (start_addr + size - 1) & ~(lsize - 1);
+	unsigned long ilsize = icache_line_size();
+	unsigned long dlsize = dcache_line_size();
+	unsigned long addr, aend;
 
 	/* aend will be miscalculated when size is zero, so we return here */
 	if (size == 0)
 		return;
 
+	addr = start_addr & ~(dlsize - 1);
+	aend = (start_addr + size - 1) & ~(dlsize - 1);
+
+	if (ilsize == dlsize) {
+		/* flush I-cache & D-cache simultaneously */
+		while (1) {
+			cache_op(HIT_WRITEBACK_INV_D, addr);
+			cache_op(HIT_INVALIDATE_I, addr);
+			if (addr == aend)
+				break;
+			addr += dlsize;
+		}
+		return;
+	}
+
+	/* flush D-cache */
 	while (1) {
 		cache_op(HIT_WRITEBACK_INV_D, addr);
+		if (addr == aend)
+			break;
+		addr += dlsize;
+	}
+
+	/* flush I-cache */
+	addr = start_addr & ~(ilsize - 1);
+	aend = (start_addr + size - 1) & ~(ilsize - 1);
+	while (1) {
 		cache_op(HIT_INVALIDATE_I, addr);
 		if (addr == aend)
 			break;
-		addr += lsize;
+		addr += ilsize;
 	}
 }
 
 void flush_dcache_range(ulong start_addr, ulong stop)
 {
-	unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+	unsigned long lsize = dcache_line_size();
 	unsigned long addr = start_addr & ~(lsize - 1);
 	unsigned long aend = (stop - 1) & ~(lsize - 1);
 
@@ -69,7 +130,7 @@ void flush_dcache_range(ulong start_addr, ulong stop)
 
 void invalidate_dcache_range(ulong start_addr, ulong stop)
 {
-	unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+	unsigned long lsize = dcache_line_size();
 	unsigned long addr = start_addr & ~(lsize - 1);
 	unsigned long aend = (stop - 1) & ~(lsize - 1);
 
diff --git a/arch/mips/cpu/mips32/start.S b/arch/mips/cpu/mips32/start.S
index 70ad198..68e59b5 100644
--- a/arch/mips/cpu/mips32/start.S
+++ b/arch/mips/cpu/mips32/start.S
@@ -51,7 +51,7 @@ _start:
 	 */
 	.word CONFIG_SYS_XWAY_EBU_BOOTCFG
 	.word 0x0
-#elif defined(CONFIG_QEMU_MALTA)
+#elif defined(CONFIG_MALTA)
 	/*
 	 * Linux expects the Board ID here.
 	 */
diff --git a/arch/mips/include/asm/malta.h b/arch/mips/include/asm/malta.h
index d4d44a2..9b1100b 100644
--- a/arch/mips/include/asm/malta.h
+++ b/arch/mips/include/asm/malta.h
@@ -1,23 +1,60 @@
 /*
  * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2013 Imagination Technologies
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
+ * SPDX-License-Identifier:	GPL-2.0
  */
 
 #ifndef _MIPS_ASM_MALTA_H
 #define _MIPS_ASM_MALTA_H
 
-#define MALTA_IO_PORT_BASE	0x18000000
+#define MALTA_GT_BASE			0x1be00000
+#define MALTA_GT_PCIIO_BASE		0x18000000
+#define MALTA_GT_UART0_BASE		(MALTA_GT_PCIIO_BASE + 0x3f8)
 
-#define MALTA_UART_BASE		(MALTA_IO_PORT_BASE + 0x3f8)
+#define MALTA_MSC01_BIU_BASE		0x1bc80000
+#define MALTA_MSC01_PCI_BASE		0x1bd00000
+#define MALTA_MSC01_PBC_BASE		0x1bd40000
+#define MALTA_MSC01_IP1_BASE		0x1bc00000
+#define MALTA_MSC01_IP1_SIZE		0x00400000
+#define MALTA_MSC01_IP2_BASE1		0x10000000
+#define MALTA_MSC01_IP2_SIZE1		0x08000000
+#define MALTA_MSC01_IP2_BASE2		0x18000000
+#define MALTA_MSC01_IP2_SIZE2		0x04000000
+#define MALTA_MSC01_IP3_BASE		0x1c000000
+#define MALTA_MSC01_IP3_SIZE		0x04000000
+#define MALTA_MSC01_PCIMEM_BASE		0x10000000
+#define MALTA_MSC01_PCIMEM_SIZE		0x10000000
+#define MALTA_MSC01_PCIMEM_MAP		0x10000000
+#define MALTA_MSC01_PCIIO_BASE		0x1b000000
+#define MALTA_MSC01_PCIIO_SIZE		0x00800000
+#define MALTA_MSC01_PCIIO_MAP		0x00000000
+#define MALTA_MSC01_UART0_BASE		(MALTA_MSC01_PCIIO_BASE + 0x3f8)
 
-#define MALTA_GT_BASE		0x1be00000
+#define MALTA_ASCIIWORD			0x1f000410
+#define MALTA_ASCIIPOS0			0x1f000418
+#define MALTA_ASCIIPOS1			0x1f000420
+#define MALTA_ASCIIPOS2			0x1f000428
+#define MALTA_ASCIIPOS3			0x1f000430
+#define MALTA_ASCIIPOS4			0x1f000438
+#define MALTA_ASCIIPOS5			0x1f000440
+#define MALTA_ASCIIPOS6			0x1f000448
+#define MALTA_ASCIIPOS7			0x1f000450
 
-#define MALTA_RESET_BASE	0x1f000500
-#define GORESET			0x42
+#define MALTA_RESET_BASE		0x1f000500
+#define GORESET				0x42
 
-#define MALTA_FLASH_BASE	0x1fc00000
+#define MALTA_FLASH_BASE		0x1fc00000
+
+#define MALTA_REVISION			0x1fc00010
+#define MALTA_REVISION_CORID_SHF	10
+#define MALTA_REVISION_CORID_MSK	(0x3f << MALTA_REVISION_CORID_SHF)
+#define MALTA_REVISION_CORID_CORE_LV		1
+#define MALTA_REVISION_CORID_CORE_FPGA6		14
+
+#define PCI_CFG_PIIX4_PIRQRCA		0x60
+#define PCI_CFG_PIIX4_PIRQRCB		0x61
+#define PCI_CFG_PIIX4_PIRQRCC		0x62
+#define PCI_CFG_PIIX4_PIRQRCD		0x63
 
 #endif /* _MIPS_ASM_MALTA_H */
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index be7e5c6..3571e4f 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -494,11 +494,17 @@
 #define MIPS_CONF1_PC		(_ULCAST_(1) <<  4)
 #define MIPS_CONF1_MD		(_ULCAST_(1) <<  5)
 #define MIPS_CONF1_C2		(_ULCAST_(1) <<  6)
+#define MIPS_CONF1_DA_SHIFT	7
 #define MIPS_CONF1_DA		(_ULCAST_(7) <<  7)
+#define MIPS_CONF1_DL_SHIFT	10
 #define MIPS_CONF1_DL		(_ULCAST_(7) << 10)
+#define MIPS_CONF1_DS_SHIFT	13
 #define MIPS_CONF1_DS		(_ULCAST_(7) << 13)
+#define MIPS_CONF1_IA_SHIFT	16
 #define MIPS_CONF1_IA		(_ULCAST_(7) << 16)
+#define MIPS_CONF1_IL_SHIFT	19
 #define MIPS_CONF1_IL		(_ULCAST_(7) << 19)
+#define MIPS_CONF1_IS_SHIFT	22
 #define MIPS_CONF1_IS		(_ULCAST_(7) << 22)
 #define MIPS_CONF1_TLBS		(_ULCAST_(63)<< 25)
 
diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c
index 66340ea..1febf29 100644
--- a/arch/mips/lib/bootm.c
+++ b/arch/mips/lib/bootm.c
@@ -17,10 +17,10 @@ DECLARE_GLOBAL_DATA_PTR;
 #define	LINUX_MAX_ENVS		256
 #define	LINUX_MAX_ARGS		256
 
-#if defined(CONFIG_QEMU_MALTA)
-#define mips_boot_qemu_malta	1
+#if defined(CONFIG_MALTA)
+#define mips_boot_malta		1
 #else
-#define mips_boot_qemu_malta	0
+#define mips_boot_malta		0
 #endif
 
 static int linux_argc;
@@ -139,7 +139,7 @@ static void linux_env_set(const char *env_name, const char *env_val)
 		strcpy(linux_env_p, env_name);
 		linux_env_p += strlen(env_name);
 
-		if (mips_boot_qemu_malta) {
+		if (mips_boot_malta) {
 			linux_env_p++;
 			linux_env[++linux_env_idx] = linux_env_p;
 		} else {
@@ -196,7 +196,7 @@ static void boot_prep_linux(bootm_headers_t *images)
 	if (cp)
 		linux_env_set("eth1addr", cp);
 
-	if (mips_boot_qemu_malta)
+	if (mips_boot_malta)
 		linux_env_set("modetty0", "38400n8r");
 }
 
@@ -210,7 +210,7 @@ static void boot_jump_linux(bootm_headers_t *images)
 
 	bootstage_mark(BOOTSTAGE_ID_RUN_OS);
 
-	if (mips_boot_qemu_malta)
+	if (mips_boot_malta)
 		linux_extra = gd->ram_size;
 
 	/* we assume that the kernel is in place */