update ar7 to 2.6.22.1 (thanks to Matteo Croce for his great help)

SVN-Revision: 8189

7 files changed, 93 insertions, 229 deletions

diff --git a/target/linux/ar7-2.6/files/arch/mips/ar7/memory.c b/target/linux/ar7-2.6/files/arch/mips/ar7/memory.c
index 8ff571ce27..99faf217b7 100644
--- a/target/linux/ar7-2.6/files/arch/mips/ar7/memory.c
+++ b/target/linux/ar7-2.6/files/arch/mips/ar7/memory.c
@@ -60,132 +60,13 @@ static int __init memsize(void)
 	return size;
 }
 
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-static bootmem_data_t node_bootmem_data;
-pg_data_t __node_data[1] = {
-	{ 
-		.bdata = &node_bootmem_data 
-	},
-};
-EXPORT_SYMBOL(__node_data);
-
-unsigned long max_mapnr;
-struct page *mem_map;
-EXPORT_SYMBOL(max_mapnr);
-EXPORT_SYMBOL(mem_map);
-
-static unsigned long setup_zero_pages(void)
-{
-	unsigned int order = 3;
-	unsigned long size;
-	struct page *page;
-
-	empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
-	if (!empty_zero_page)
-		panic("Oh boy, that early out of memory?");
-
-	page = virt_to_page(empty_zero_page);
-	split_page(page, order);
-	while (page < virt_to_page(empty_zero_page + (PAGE_SIZE << order))) {
-		SetPageReserved(page);
-		page++;
-	}
-
-	size = PAGE_SIZE << order;
-	zero_page_mask = (size - 1) & PAGE_MASK;
-
-	return 1UL << order;
-}
-
-extern void pagetable_init(void);
-
-void __init paging_init(void)
-{
-	unsigned long zones_size[MAX_NR_ZONES] = { 0, };
-
-	pagetable_init();
-
-	zones_size[ZONE_DMA] = max_low_pfn - min_low_pfn;
-
-	free_area_init_node(0, NODE_DATA(0), zones_size, ARCH_PFN_OFFSET, NULL);
-}
-
-static struct kcore_list kcore_mem, kcore_vmalloc;
-
-void __init mem_init(void)
-{
-	unsigned long codesize, reservedpages, datasize, initsize;
-	unsigned long tmp, ram;
-	unsigned long kernel_start, kernel_end;
-
-	kernel_start = PFN_DOWN(CPHYSADDR((unsigned long)&_text));
-	kernel_end = PFN_UP(CPHYSADDR((unsigned long)&_end));
-	for (tmp = min_low_pfn + 1; tmp < kernel_start; tmp++) {
-		ClearPageReserved(pfn_to_page(tmp));
-		init_page_count(pfn_to_page(tmp));
-		free_page((unsigned long)__va(tmp << PAGE_SHIFT));
-	}
-
-	totalram_pages += free_all_bootmem();
-	totalram_pages -= setup_zero_pages();	/* Setup zeroed pages.  */
-
-	reservedpages = ram = 0;
-	for (tmp = min_low_pfn; tmp <= max_low_pfn; tmp++) {
-		ram++;
-		if (PageReserved(pfn_to_page(tmp)))
-			if ((tmp < kernel_start) || (tmp > kernel_end)) 
-				reservedpages++;
-	}
-	num_physpages = ram;
-
-	codesize =  (unsigned long) &_etext - (unsigned long) &_text;
-	datasize =  (unsigned long) &_edata - (unsigned long) &_etext;
-	initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
-	kclist_add(&kcore_mem, __va(min_low_pfn), 
-		   (max_low_pfn - min_low_pfn) << PAGE_SHIFT);
-	kclist_add(&kcore_vmalloc, (void *)VMALLOC_START,
-		   VMALLOC_END - VMALLOC_START);
-
-	printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
-	       "%ldk reserved, %ldk data, %ldk init)\n",
-	       (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
-	       ram << (PAGE_SHIFT-10),
-	       codesize >> 10,
-	       reservedpages << (PAGE_SHIFT-10),
-	       datasize >> 10,
-	       initsize >> 10);
-}
-#endif
-
 void __init prom_meminit(void)
 {
 	unsigned long pages;
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-	unsigned long kernel_start, kernel_end;
-	unsigned long free_pages;
-	unsigned long bootmap_size;
-#endif
 
 	pages = memsize() >> PAGE_SHIFT;
 	add_memory_region(ARCH_PFN_OFFSET << PAGE_SHIFT, pages <<
 			  PAGE_SHIFT, BOOT_MEM_RAM);
-
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-	kernel_start = PFN_DOWN(CPHYSADDR((unsigned long)&_text));
-	kernel_end = PFN_UP(CPHYSADDR((unsigned long)&_end));
-	min_low_pfn = ARCH_PFN_OFFSET;
-	max_low_pfn = ARCH_PFN_OFFSET + pages;
-	max_mapnr = max_low_pfn;
-	free_pages = pages - (kernel_end - min_low_pfn);
-	bootmap_size = init_bootmem_node(NODE_DATA(0), kernel_end,
-					 ARCH_PFN_OFFSET, max_low_pfn);
-
-	free_bootmem(PFN_PHYS(kernel_end), free_pages << PAGE_SHIFT);
-	memory_present(0, min_low_pfn, max_low_pfn);
-	reserve_bootmem(PFN_PHYS(kernel_end), bootmap_size);
-	mem_map = NODE_DATA(0)->node_mem_map;
-#endif
 }
 
 void __init prom_free_prom_memory(void)
diff --git a/target/linux/ar7-2.6/files/arch/mips/ar7/platform.c b/target/linux/ar7-2.6/files/arch/mips/ar7/platform.c
index c61e20a6c1..b9f7d0e9f9 100644
--- a/target/linux/ar7-2.6/files/arch/mips/ar7/platform.c
+++ b/target/linux/ar7-2.6/files/arch/mips/ar7/platform.c
@@ -32,6 +32,7 @@
 #include <asm/io.h>
 #include <asm/ar7/ar7.h>
 #include <asm/ar7/gpio.h>
+#include <asm/ar7/prom.h>
 #include <asm/ar7/vlynq.h>
 
 struct plat_vlynq_data {
diff --git a/target/linux/ar7-2.6/files/arch/mips/ar7/prom.c b/target/linux/ar7-2.6/files/arch/mips/ar7/prom.c
index 08904dee71..28397427d0 100644
--- a/target/linux/ar7-2.6/files/arch/mips/ar7/prom.c
+++ b/target/linux/ar7-2.6/files/arch/mips/ar7/prom.c
@@ -33,6 +33,7 @@
 #include <asm/gdb-stub.h>
 
 #include <asm/ar7/ar7.h>
+#include <asm/ar7/prom.h>
 
 #define MAX_ENTRY 80
 
@@ -41,72 +42,6 @@ struct env_var {
 	char *value;
 };
 
-struct psp_chip_map {
-	u16 chip;
-	char *names[50];
-};
-
-/* I hate this. No. *I* *HATE* *THIS* */
-static __initdata struct psp_chip_map psp_chip_map[] = {
-	{
-		.chip = AR7_CHIP_7100,
-		.names = {
-			"dummy", "cpufrequency", "memsize",
-			"flashsize", "modetty0", "modetty1", "prompt",
-			"bootcfg", "maca", "macb", "usb_rndis_mac",
-			"macap", "my_ipaddress", "server_ipaddress",
-			"bline_maca", "bline_macb", "bline_rndis",
-			"bline_atm", "usb_pid", "usb_vid",
-			"usb_eppolli", "gateway_ipaddress",
-			"subnet_mask", "usb_serial", "usb_board_mac",
-			"remote_user", "remote_pass", "remote_dir",
-			"sysfrequency", "link_timeout", "mac_port",
-			"path", "hostname", "tftpcfg", "buildops",
-			"tftp_fo_fname", "tftp_fo_ports",
-			"console_state", "mipsfrequency", 
-		},
-	},
-	{
-		.chip = AR7_CHIP_7200,
-		.names = {
-			"dummy", "cpufrequency", "memsize",
-			"flashsize", "modetty0", "modetty1", "prompt",
-			"bootcfg", "maca", "macb", "usb_rndis_mac",
-			"macap", "my_ipaddress", "server_ipaddress",
-			"bline_maca", "bline_macb", "bline_rndis",
-			"bline_atm", "usb_pid", "usb_vid",
-			"usb_eppolli", "gateway_ipaddress",
-			"subnet_mask", "usb_serial", "usb_board_mac",
-			"remote_user", "remote_pass", "remote_dir",
-			"sysfrequency", "link_timeout", "mac_port",
-			"path", "hostname", "tftpcfg", "buildops",
-			"tftp_fo_fname", "tftp_fo_ports",
-			"console_state", "mipsfrequency", 
-		},
-	},
-	{
-		.chip = AR7_CHIP_7300,
-		.names = {
-			"dummy", "cpufrequency", "memsize",
-			"flashsize", "modetty0", "modetty1", "prompt",
-			"bootcfg", "maca", "macb", "usb_rndis_mac",
-			"macap", "my_ipaddress", "server_ipaddress",
-			"bline_maca", "bline_macb", "bline_rndis",
-			"bline_atm", "usb_pid", "usb_vid",
-			"usb_eppolli", "gateway_ipaddress",
-			"subnet_mask", "usb_serial", "usb_board_mac",
-			"remote_user", "remote_pass", "remote_dir",
-			"sysfrequency", "link_timeout", "mac_port",
-			"path", "hostname", "tftpcfg", "buildops",
-			"tftp_fo_fname", "tftp_fo_ports",
-			"console_state", "mipsfrequency", 
-		},
-	},
-	{
-		.chip = 0x0,
-	},
-};
-
 static struct env_var adam2_env[MAX_ENTRY] = { { 0, }, };
 
 char * prom_getenv(char *name)
@@ -155,15 +90,71 @@ struct psbl_rec {
 
 static __initdata char psp_env_version[] = "TIENV0.8";
 
-struct psp_env_var {
-	unsigned char num;
-	unsigned char ctrl;
-	unsigned short csum;
-	unsigned char len;
-	unsigned char data[11];
+struct psp_env_chunk {
+	u8 num;
+	u8 ctrl;
+	u16 csum;
+	u8 len;
+	char data[11];
+} __attribute__ ((packed));
+
+struct psp_var_map_entry {
+	u8 num;
+	char *value;
+};
+
+static struct psp_var_map_entry psp_var_map[] = {
+	{ 1, "cpufrequency" },
+	{ 2, "memsize" },
+	{ 3, "flashsize" },
+	{ 4, "modetty0" },
+	{ 5, "modetty1" },
+	{ 8, "maca" },
+	{ 9, "macb" },
+	{ 28, "sysfrequency" },
+	{ 38, "mipsfrequency" },
 };
 
-static char psp_env_data[2048] = { 0, };
+/*
+
+Well-known variable (num is looked up in table above for matching variable name)
+Example: cpufrequency=211968000
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+| 01 |CTRL|CHECKSUM | 01 | _2 | _1 | _1 | _9 | _6 | _8 | _0 | _0 | _0 | \0 | FF |
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+
+Name=Value pair in a single chunk
+Example: NAME=VALUE
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+| 00 |CTRL|CHECKSUM | 01 | _N | _A | _M | _E | _0 | _V | _A | _L | _U | _E | \0 |
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+
+Name=Value pair in 2 chunks (len is the number of chunks)
+Example: bootloaderVersion=1.3.7.15
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+| 00 |CTRL|CHECKSUM | 02 | _b | _o | _o | _t | _l | _o | _a | _d | _e | _r | _V |
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+| _e | _r | _s | _i | _o | _n | \0 | _1 | _. | _3 | _. | _7 | _. | _1 | _5 | \0 |
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 
+
+Data is padded with 0xFF
+
+*/
+
+#define PSP_ENV_SIZE  4096
+
+static char psp_env_data[PSP_ENV_SIZE] = { 0, };
+
+static char * __init lookup_psp_var_map(u8 num)
+{
+	int i;
+
+	for (i = 0; i < sizeof(psp_var_map); i++)
+		if (psp_var_map[i].num == num)
+			return psp_var_map[i].value;
+	
+	return NULL;
+}
 
 static void __init add_adam2_var(char *name, char *value)
 {
@@ -180,41 +171,29 @@ static void __init add_adam2_var(char *name, char *value)
 	}
 }
 
-static int __init parse_psp_env(void *start)
+static int __init parse_psp_env(void *psp_env_base)
 {
-	int i, j;
-	u16 chip;
-	struct psp_chip_map *map;
-	char *src, *dest, *name, *value;
-	struct psp_env_var *vars = start;
-
-	chip = ar7_chip_id();
-	for (map = psp_chip_map; map->chip; map++)
-		if (map->chip == chip)
-			break;
+	int i, n;
+	char *name, *value;
+	struct psp_env_chunk *chunks = (struct psp_env_chunk *)psp_env_data;
 
-	if (!map->chip)
-		return -EINVAL;
+	memcpy_fromio(chunks, psp_env_base, PSP_ENV_SIZE);
 
 	i = 1;
-	j = 0;
-	dest = psp_env_data;
-	while (vars[i].num < 0xff) {
-		src = vars[i].data;
-		if (vars[i].num) {
-			strcpy(dest, map->names[vars[i].num]);
-			name = dest;
+	n = PSP_ENV_SIZE / sizeof(struct psp_env_chunk);
+	while (i < n) {
+		if ((chunks[i].num == 0xff) || ((i + chunks[i].len) > n))
+			break;
+		value = chunks[i].data;
+		if (chunks[i].num) {
+			name = lookup_psp_var_map(chunks[i].num);
 		} else {
-			strcpy(dest, src);
-			name = dest;
-			src += strlen(src) + 1;
-		}			
-		dest += strlen(dest) + 1;
-		strcpy(dest, src);
-		value = dest;
-		dest += strlen(dest) + 1;
-		add_adam2_var(name, value);
-		i += vars[i].len;
+			name = value;
+			value += strlen(name) + 1;
+		}
+		if (name)
+			add_adam2_var(name, value);
+		i += chunks[i].len;
 	}
 	return 0;
 }
diff --git a/target/linux/ar7-2.6/files/arch/mips/ar7/setup.c b/target/linux/ar7-2.6/files/arch/mips/ar7/setup.c
index 6c9c1bf7bd..4abc39f1df 100644
--- a/target/linux/ar7-2.6/files/arch/mips/ar7/setup.c
+++ b/target/linux/ar7-2.6/files/arch/mips/ar7/setup.c
@@ -116,6 +116,9 @@ void __init plat_mem_setup(void)
 	ioport_resource.end   = ~0;
 	iomem_resource.start  = 0;
 	iomem_resource.end    = ~0;
+
+	printk("%s, ID: 0x%04x, Revision: 0x%02x\n", get_system_type(), 
+		ar7_chip_id(), ar7_chip_rev());
 }
 
 console_initcall(ar7_init_console);
diff --git a/target/linux/ar7-2.6/files/drivers/net/cpmac.c b/target/linux/ar7-2.6/files/drivers/net/cpmac.c
index 1be7cb8ddd..7d46677080 100644
--- a/target/linux/ar7-2.6/files/drivers/net/cpmac.c
+++ b/target/linux/ar7-2.6/files/drivers/net/cpmac.c
@@ -1173,9 +1173,9 @@ int __devinit cpmac_init(void)
 #warning FIXME: unhardcode gpio&reset bits
 	ar7_gpio_disable(26);
 	ar7_gpio_disable(27);
-	ar7_device_reset(17);
-	ar7_device_reset(21);
-	ar7_device_reset(26);
+	ar7_device_reset(AR7_RESET_BIT_CPMAC_LO);
+	ar7_device_reset(AR7_RESET_BIT_CPMAC_HI);
+	ar7_device_reset(AR7_RESET_BIT_EPHY);
 
 	cpmac_mii.reset(&cpmac_mii);
 
diff --git a/target/linux/ar7-2.6/files/include/asm-mips/ar7/ar7.h b/target/linux/ar7-2.6/files/include/asm-mips/ar7/ar7.h
index 3e6a50c324..e8e32a0b83 100644
--- a/target/linux/ar7-2.6/files/include/asm-mips/ar7/ar7.h
+++ b/target/linux/ar7-2.6/files/include/asm-mips/ar7/ar7.h
@@ -53,7 +53,10 @@
 #define  AR7_RESET_SOFTWARE    0x4
 #define  AR7_RESET_STATUS      0x8
 
-#define AR7_RESET_BIT_MDIO   22
+#define AR7_RESET_BIT_CPMAC_LO 17
+#define AR7_RESET_BIT_CPMAC_HI 21
+#define AR7_RESET_BIT_MDIO     22
+#define AR7_RESET_BIT_EPHY     26
 
 /* GPIO control registers */
 #define  AR7_GPIO_INPUT  0x0
@@ -83,8 +86,6 @@ struct plat_dsl_data {
 	int reset_bit_sar;
 };
 
-extern char *prom_getenv(char *envname);
-
 extern int ar7_cpu_clock, ar7_bus_clock, ar7_dsp_clock;
 
 static inline u16 ar7_chip_id(void)
diff --git a/target/linux/ar7-2.6/files/include/asm-mips/ar7/prom.h b/target/linux/ar7-2.6/files/include/asm-mips/ar7/prom.h
index bb0b0c4d5b..10d6235102 100644
--- a/target/linux/ar7-2.6/files/include/asm-mips/ar7/prom.h
+++ b/target/linux/ar7-2.6/files/include/asm-mips/ar7/prom.h
@@ -21,7 +21,6 @@
 #ifndef __PROM_H__
 #define __PROM_H__
 
-extern void prom_init(void);
 extern char *prom_getenv(char *name);
 extern void prom_printf(char *fmt, ...);