From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Tue, 27 Mar 2007 18:20:46 -0700 From: "Mark A. Greer" To: linuxppc-dev Subject: [RFC 1/3] powerpc: Add bootwrapper support for Motorola PrPMC2800 platform Message-ID: <20070328012046.GB1586@mag.az.mvista.com> References: <20070328011924.GA1586@mag.az.mvista.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20070328011924.GA1586@mag.az.mvista.com> Cc: Dale Farnsworth List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Add support for Motorola ECC PrPMC280/PrPMC2800 Platform. The PrPMC280 sits on an F101 baseboard and the PrPMC2800 sits on a F101e baseboard. Logic has been added to determine which board (and variant thereof) the code is being run on. Signed-off-by: Mark A. Greer --- These patches depend on the patches in the thread with the subject: "[RFC 0/8] powerpc: Add initial arch/powerpc support for Marvell/mv64x60" Makefile | 3 prpmc2800.c | 510 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 512 insertions(+), 1 deletion(-) --- Index: linux-2.6-powerpc-df/arch/powerpc/boot/prpmc2800.c =================================================================== --- /dev/null +++ linux-2.6-powerpc-df/arch/powerpc/boot/prpmc2800.c @@ -0,0 +1,510 @@ +/* + * Motorola ECC prpmc280/f101 & prpmc2800/f101e platform code. + * + * Author: Mark A. Greer + * + * 2007 (c) MontaVista, Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ + +#include +#include +#include "types.h" +#include "elf.h" +#include "page.h" +#include "string.h" +#include "stdio.h" +#include "io.h" +#include "ops.h" +#include "gunzip_util.h" +#include "mv64x60.h" + +extern char _end[]; +extern char _vmlinux_start[], _vmlinux_end[]; +extern char _dtb_start[], _dtb_end[]; + +#define KB 1024U +#define MB (KB*KB) +#define GB (KB*MB) +#define MHz (1000U*1000U) +#define GHz (1000U*MHz) + +#define BOARD_MODEL "PrPMC2800" +#define BOARD_MODEL_MAX 32 /* max strlen(BOARD_MODEL) + 1 */ + +BSS_STACK(16*KB); + +static u8 *bridge_base; + +typedef enum { + BOARD_MODEL_PRPMC280, + BOARD_MODEL_PRPMC2800, +} prpmc2800_board_model; + +typedef enum { + BRIDGE_TYPE_MV64360, + BRIDGE_TYPE_MV64362, +} prpmc2800_bridge_type; + +struct prpmc2800_board_info { + prpmc2800_board_model model; + char variant; + prpmc2800_bridge_type bridge_type; + u8 subsys0; + u8 subsys1; + u8 vpd4; + u8 vpd4_mask; + u32 core_speed; + u32 mem_size; + u32 boot_flash; + u32 user_flash; +}; + +static struct prpmc2800_board_info prpmc2800_board_info[] = { + { + .model = BOARD_MODEL_PRPMC280, + .variant = 'a', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xff, + .subsys1 = 0xff, + .vpd4 = 0x00, + .vpd4_mask = 0x0f, + .core_speed = 1*GHz, + .mem_size = 512*MB, + .boot_flash = 1*MB, + .user_flash = 64*MB, + }, + { + .model = BOARD_MODEL_PRPMC280, + .variant = 'b', + .bridge_type = BRIDGE_TYPE_MV64362, + .subsys0 = 0xff, + .subsys1 = 0xff, + .vpd4 = 0x01, + .vpd4_mask = 0x0f, + .core_speed = 1*GHz, + .mem_size = 512*MB, + .boot_flash = 0, + .user_flash = 0, + }, + { + .model = BOARD_MODEL_PRPMC280, + .variant = 'c', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xff, + .subsys1 = 0xff, + .vpd4 = 0x02, + .vpd4_mask = 0x0f, + .core_speed = 733*MHz, + .mem_size = 512*MB, + .boot_flash = 1*MB, + .user_flash = 64*MB, + }, + { + .model = BOARD_MODEL_PRPMC280, + .variant = 'd', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xff, + .subsys1 = 0xff, + .vpd4 = 0x03, + .vpd4_mask = 0x0f, + .core_speed = 1*GHz, + .mem_size = 1*GB, + .boot_flash = 1*MB, + .user_flash = 64*MB, + }, + { + .model = BOARD_MODEL_PRPMC280, + .variant = 'e', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xff, + .subsys1 = 0xff, + .vpd4 = 0x04, + .vpd4_mask = 0x0f, + .core_speed = 1*GHz, + .mem_size = 512*MB, + .boot_flash = 1*MB, + .user_flash = 64*MB, + }, + { + .model = BOARD_MODEL_PRPMC280, + .variant = 'f', + .bridge_type = BRIDGE_TYPE_MV64362, + .subsys0 = 0xff, + .subsys1 = 0xff, + .vpd4 = 0x05, + .vpd4_mask = 0x0f, + .core_speed = 733*MHz, + .mem_size = 128*MB, + .boot_flash = 1*MB, + .user_flash = 0, + }, + { + .model = BOARD_MODEL_PRPMC280, + .variant = 'g', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xff, + .subsys1 = 0xff, + .vpd4 = 0x06, + .vpd4_mask = 0x0f, + .core_speed = 1*GHz, + .mem_size = 256*MB, + .boot_flash = 1*MB, + .user_flash = 0, + }, + { + .model = BOARD_MODEL_PRPMC280, + .variant = 'h', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xff, + .subsys1 = 0xff, + .vpd4 = 0x07, + .vpd4_mask = 0x0f, + .core_speed = 1*GHz, + .mem_size = 1*GB, + .boot_flash = 1*MB, + .user_flash = 64*MB, + }, + { + .model = BOARD_MODEL_PRPMC2800, + .variant = 'a', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xb2, + .subsys1 = 0x8c, + .vpd4 = 0x00, + .vpd4_mask = 0x00, + .core_speed = 1*GHz, + .mem_size = 512*MB, + .boot_flash = 2*MB, + .user_flash = 64*MB, + }, + { + .model = BOARD_MODEL_PRPMC2800, + .variant = 'b', + .bridge_type = BRIDGE_TYPE_MV64362, + .subsys0 = 0xb2, + .subsys1 = 0x8d, + .vpd4 = 0x00, + .vpd4_mask = 0x00, + .core_speed = 1*GHz, + .mem_size = 512*MB, + .boot_flash = 0, + .user_flash = 0, + }, + { + .model = BOARD_MODEL_PRPMC2800, + .variant = 'c', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xb2, + .subsys1 = 0x8e, + .vpd4 = 0x00, + .vpd4_mask = 0x00, + .core_speed = 733*MHz, + .mem_size = 512*MB, + .boot_flash = 2*MB, + .user_flash = 64*MB, + }, + { + .model = BOARD_MODEL_PRPMC2800, + .variant = 'd', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xb2, + .subsys1 = 0x8f, + .vpd4 = 0x00, + .vpd4_mask = 0x00, + .core_speed = 1*GHz, + .mem_size = 1*GB, + .boot_flash = 2*MB, + .user_flash = 64*MB, + }, + { + .model = BOARD_MODEL_PRPMC2800, + .variant = 'e', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xa2, + .subsys1 = 0x8a, + .vpd4 = 0x00, + .vpd4_mask = 0x00, + .core_speed = 1*GHz, + .mem_size = 512*MB, + .boot_flash = 2*MB, + .user_flash = 64*MB, + }, + { + .model = BOARD_MODEL_PRPMC2800, + .variant = 'f', + .bridge_type = BRIDGE_TYPE_MV64362, + .subsys0 = 0xa2, + .subsys1 = 0x8b, + .vpd4 = 0x00, + .vpd4_mask = 0x00, + .core_speed = 733*MHz, + .mem_size = 128*MB, + .boot_flash = 2*MB, + .user_flash = 0, + }, + { + .model = BOARD_MODEL_PRPMC2800, + .variant = 'g', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xa2, + .subsys1 = 0x8c, + .vpd4 = 0x00, + .vpd4_mask = 0x00, + .core_speed = 1*GHz, + .mem_size = 2*GB, + .boot_flash = 2*MB, + .user_flash = 64*MB, + }, + { + .model = BOARD_MODEL_PRPMC2800, + .variant = 'h', + .bridge_type = BRIDGE_TYPE_MV64360, + .subsys0 = 0xa2, + .subsys1 = 0x8d, + .vpd4 = 0x00, + .vpd4_mask = 0x00, + .core_speed = 733*MHz, + .mem_size = 1*GB, + .boot_flash = 2*MB, + .user_flash = 64*MB, + }, +}; + +static struct prpmc2800_board_info *prpmc2800_get_board_info(u8 *vpd) +{ + struct prpmc2800_board_info *bip; + int i; + + for (i=0,bip=prpmc2800_board_info; isubsys0) && (vpd[1] == bip->subsys1) + && ((vpd[4] & bip->vpd4_mask) == bip->vpd4)) + return bip; + + return NULL; +} + +/* XXX turn off WDT, DMA engines, timers */ + +#define EEPROM2_ADDR 0xa4 +#define EEPROM3_ADDR 0xa8 + +static void prpmc2800_fixups(void) +{ + u32 v[2], l; + int rc; + void *devp; + u8 vpd[5]; + char model[BOARD_MODEL_MAX]; + struct prpmc2800_board_info *bip; + + if (mv64x60_i2c_open()) { + printf("Error: Can't open i2c device\n\r"); + exit(); + } + + /* Get VPD from i2c eeprom-2 */ + memset(vpd, 0, sizeof(vpd)); + rc = mv64x60_i2c_read(EEPROM2_ADDR, vpd, 0x1fde, 2, sizeof(vpd)); + if (rc < 0) { + printf("Error: Couldn't read eeprom2\n\r"); + exit(); + } + mv64x60_i2c_close(); + + /* Get board type & related info */ + bip = prpmc2800_get_board_info(vpd); + if (bip == NULL) { + printf("Error: Unsupported board or corrupted VPD:\n\r"); + printf(" 0x%x 0x%x 0x%x 0x%x 0x%x\n\r", + vpd[0], vpd[1], vpd[2], vpd[3], vpd[4]); + exit(); + } + + /* Set /model appropriately */ + devp = finddevice("/"); + if (devp == NULL) { + printf("Error: Missing '/' device tree node\n\r"); + exit(); + } + memset(model, 0, BOARD_MODEL_MAX); + strncpy(model, BOARD_MODEL, BOARD_MODEL_MAX - 2); + l = strlen(model); + if (bip->model == BOARD_MODEL_PRPMC280) + l--; + model[l++] = bip->variant; + model[l++] = '\0'; + setprop(devp, "model", model, l); + + /* Set /cpus/PowerPC,7447/clock-frequency */ + devp = finddevice("/cpus/PowerPC,7447"); + if (devp == NULL) { + printf("Error: Missing proper /cpus device tree node\n\r"); + exit(); + } + v[0] = bip->core_speed; + setprop(devp, "clock-frequency", &v[0], sizeof(v[0])); + + /* Set /memory/reg size */ + devp = finddevice("/memory"); + if (devp == NULL) { + printf("Error: Missing /memory device tree node\n\r"); + exit(); + } + v[0] = 0; + v[1] = bip->mem_size; + setprop(devp, "reg", v, sizeof(v)); + + /* Update /mv64x60/device_type, if this is a mv64362 */ + if (bip->bridge_type == BRIDGE_TYPE_MV64362) { + devp = finddevice("/mv64x60"); + if (devp == NULL) { + printf("Error: Missing /mv64x60 device tree node\n\r"); + exit(); + } + setprop(devp, "device_type", "mv64362", strlen("mv64362") + 1); + } + + /* Set Boot FLASH size */ + devp = finddevice("/mv64x60/flash@ff800000"); + if (devp == NULL) { + printf("Error: Missing Boot FLASH device tree node\n\r"); + exit(); + } + rc = getprop(devp, "reg", v, sizeof(v)); + if (rc != sizeof(v)) { + printf("Error: Can't find Boot FLASH reg property\n\r"); + exit(); + } + v[1] = bip->boot_flash; + setprop(devp, "reg", v, sizeof(v)); + + /* Set User FLASH size */ + devp = finddevice("/mv64x60/flash@a0000000"); + if (devp == NULL) { + printf("Error: Missing User FLASH device tree node\n\r"); + exit(); + } + rc = getprop(devp, "reg", v, sizeof(v)); + if (rc != sizeof(v)) { + printf("Error: Can't find User FLASH reg property\n\r"); + exit(); + } + v[1] = bip->user_flash; + setprop(devp, "reg", v, sizeof(v)); +} + +#define MV64x60_MPP_CNTL_0 0xf000 +#define MV64x60_MPP_CNTL_2 0xf008 +#define MV64x60_GPP_IO_CNTL 0xf100 +#define MV64x60_GPP_LEVEL_CNTL 0xf110 +#define MV64x60_GPP_VALUE_SET 0xf118 + +static void prpmc2800_reset(void) +{ + u32 temp; + + if (bridge_base != 0) { + temp = in_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_0)); + temp &= 0xFFFF0FFF; + out_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_0), temp); + + temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL)); + temp |= 0x00000004; + out_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL), temp); + + temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL)); + temp |= 0x00000004; + out_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL), temp); + + temp = in_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_2)); + temp &= 0xFFFF0FFF; + out_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_2), temp); + + temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL)); + temp |= 0x00080000; + out_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL), temp); + + temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL)); + temp |= 0x00080000; + out_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL), temp); + + out_le32((u32 *)(bridge_base + MV64x60_GPP_VALUE_SET), + 0x00080004); + } + + for (;;); +} + +static void *prpmc2800_vmlinux_alloc(unsigned long size) +{ + void *p = malloc(_ALIGN(size, 4096)); + + if (!p) { + printf("Can't allocate memory for kernel image!\n\r"); + exit(); + } + return p; +} + +#define HEAP_SIZE (16*MB) +static struct gunzip_state gzstate; + +void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7) +{ + struct elf_info ei; + char *heap_start, *dtb; + int dt_size = _dtb_end - _dtb_start; + void *vmlinuz_addr = _vmlinux_start; + unsigned long vmlinuz_size = _vmlinux_end - _vmlinux_start; + char elfheader[256]; + + if (dt_size <= 0) /* No fdt */ + exit(); + + /* Start heap after end of the zImage or end of the kernel, + * whichever is higher. That's so things allocated by + * simple_alloc won't overwrite any part of the zImage or + * get overwritten when the early kernel code decompresses & + * relocates the kernel to 0. + */ + gunzip_start(&gzstate, vmlinuz_addr, vmlinuz_size); + gunzip_exactly(&gzstate, elfheader, sizeof(elfheader)); + + if (!parse_elf32(elfheader, &ei)) + exit(); + + heap_start = (char *)_ALIGN(ei.memsize + ei.elfoffset, 4096); + heap_start = max(heap_start, (char *)_end); + + if ((unsigned)simple_alloc_init(heap_start, HEAP_SIZE, 2*KB, 16) + > (128*MB)) + exit(); + + /* Relocate dtb to safe area past end of zImage & kernel */ + dtb = malloc(dt_size); + if (!dtb) + exit(); + memmove(dtb, _dtb_start, dt_size); + if (ft_init(dtb, dt_size, 16)) + exit(); + + /* Need to do some hostbrige init */ + bridge_base = mv64x60_get_bridge_base(); + mv64x60_config_ctlr_windows(bridge_base, mv64x60_get_bridge_pbase(), + mv64x60_is_coherency()); + + platform_ops.fixups = prpmc2800_fixups; + platform_ops.vmlinux_alloc = prpmc2800_vmlinux_alloc; + platform_ops.exit = prpmc2800_reset; + + if (serial_console_init() < 0) + exit(); +} + +/* Following code is put at very beginning of zImage */ +asm (" .globl _zimage_start\n _zimage_start:\n b _zimage_start_lib "); Index: linux-2.6-powerpc-df/arch/powerpc/boot/Makefile =================================================================== --- linux-2.6-powerpc-df.orig/arch/powerpc/boot/Makefile +++ linux-2.6-powerpc-df/arch/powerpc/boot/Makefile @@ -45,7 +45,7 @@ src-wlib := string.S crt0.S stdio.c main gunzip_util.c devtree.c elf_util.c mv64x60.c mpsc.c \ mv64x60_i2c.c $(zlib) cuboot-plats := 83xx -src-plat := of.c $(cuboot-plats:%=cuboot-%.c) +src-plat := of.c prpmc2800.c $(cuboot-plats:%=cuboot-%.c) src-boot := $(src-wlib) $(src-plat) empty.c src-boot := $(addprefix $(obj)/, $(src-boot)) @@ -140,6 +140,7 @@ image-$(CONFIG_PPC_CELLEB) += zImage.ps image-$(CONFIG_PPC_CHRP) += zImage.chrp image-$(CONFIG_PPC_EFIKA) += zImage.chrp image-$(CONFIG_PPC_PMAC) += zImage.pmac +image-$(CONFIG_PPC_PRPMC2800) += zImage.dts.prpmc2800 image-$(CONFIG_DEFAULT_UIMAGE) += uImage cuImage # For 32-bit powermacs, build the COFF and miboot images