diff options
Diffstat (limited to 'packages/uboot/u-boot-mkimage-openmoko-native/uboot-cmd_s3c2410.patch')
| -rw-r--r-- | packages/uboot/u-boot-mkimage-openmoko-native/uboot-cmd_s3c2410.patch | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/packages/uboot/u-boot-mkimage-openmoko-native/uboot-cmd_s3c2410.patch b/packages/uboot/u-boot-mkimage-openmoko-native/uboot-cmd_s3c2410.patch deleted file mode 100644 index 993ef4f6f2..0000000000 --- a/packages/uboot/u-boot-mkimage-openmoko-native/uboot-cmd_s3c2410.patch +++ /dev/null @@ -1,175 +0,0 @@ -This patch adds a new 's3c2410' command which currently supports 's3c2410 speed -{set,get,list} and thus allows dynamic change of the CPU clock. - -Signed-off-by: Harald Welte <laforge@openmoko.org> - -Index: u-boot/cpu/arm920t/s3c24x0/Makefile -=================================================================== ---- u-boot.orig/cpu/arm920t/s3c24x0/Makefile 2007-02-24 15:14:00.000000000 +0100 -+++ u-boot/cpu/arm920t/s3c24x0/Makefile 2007-02-24 15:21:02.000000000 +0100 -@@ -26,7 +26,7 @@ - LIB = $(obj)lib$(SOC).a - - COBJS = i2c.o interrupts.o serial.o speed.o \ -- usb_ohci.o nand_read.o nand.o -+ usb_ohci.o nand_read.o nand.o cmd_s3c2410.o - - SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) - OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) -Index: u-boot/cpu/arm920t/s3c24x0/cmd_s3c2410.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ u-boot/cpu/arm920t/s3c24x0/cmd_s3c2410.c 2007-02-24 15:22:17.000000000 +0100 -@@ -0,0 +1,152 @@ -+/* -+ * (C) Copyright 2006 by OpenMoko, Inc. -+ * Author: Harald Welte <laforge@openmoko.org> -+ * -+ * See file CREDITS for list of people who contributed to this -+ * project. -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License as -+ * published by the Free Software Foundation; either version 2 of -+ * the License, or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, -+ * MA 02111-1307 USA -+ */ -+ -+/* -+ * Boot support -+ */ -+#include <common.h> -+#include <command.h> -+#include <net.h> /* for print_IPaddr */ -+#include <s3c2410.h> -+ -+DECLARE_GLOBAL_DATA_PTR; -+ -+#if (CONFIG_COMMANDS & CFG_CMD_BDI) -+ -+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) -+#define MHZ 1000000 -+ -+static void print_cpu_speed(void) -+{ -+ printf("FCLK = %u MHz, HCLK = %u MHz, PCLK = %u MHz\n", -+ get_FCLK()/MHZ, get_HCLK()/MHZ, get_PCLK()/MHZ); -+} -+ -+struct s3c2410_pll_speed { -+ u_int16_t mhz; -+ u_int32_t mpllcon; -+ u_int32_t clkdivn; -+}; -+ -+#define CLKDIVN_1_1_1 0x00 -+#define CLKDIVN_1_2_2 0x02 -+#define CLKDIVN_1_2_4 0x03 -+#define CLKDIVN_1_4_4 0x04 -+ -+static const struct s3c2410_pll_speed pll_configs[] = { -+ { -+ .mhz = 50, -+ .mpllcon = ((0x5c << 12) + (0x4 << 4) + 0x2), -+ .clkdivn = CLKDIVN_1_1_1, -+ }, -+ { -+ .mhz = 101, -+ .mpllcon = ((0x7f << 12) + (0x2 << 4) + 0x2), -+ .clkdivn = CLKDIVN_1_2_2, -+ }, -+ { -+ .mhz = 202, -+ .mpllcon = ((0x90 << 12) + (0x7 << 4) + 0x0), -+ .clkdivn = CLKDIVN_1_2_4, -+ }, -+ { -+ .mhz = 266, -+ .mpllcon = ((0x7d << 12) + (0x1 << 4) + 0x1), -+ .clkdivn = CLKDIVN_1_2_4, -+ }, -+}; -+ -+static void list_cpu_speeds(void) -+{ -+ int i; -+ for (i = 0; i < ARRAY_SIZE(pll_configs); i++) -+ printf("%u MHz\n", pll_configs[i].mhz); -+} -+ -+static int reconfig_mpll(u_int16_t mhz) -+{ -+ S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER(); -+ int i; -+ -+ for (i = 0; i < ARRAY_SIZE(pll_configs); i++) { -+ if (pll_configs[i].mhz == mhz) { -+ /* to reduce PLL lock time, adjust the LOCKTIME register */ -+ clk_power->LOCKTIME = 0xFFFFFF; -+ -+ /* configure MPLL */ -+ clk_power->MPLLCON = pll_configs[i].mpllcon; -+ clk_power->UPLLCON = ((0x78 << 12) + (0x2 << 4) + 0x3), -+ clk_power->CLKDIVN = pll_configs[i].clkdivn; -+ -+ /* If we changed the speed, we need to re-configure -+ * the serial baud rate generator */ -+ serial_setbrg(); -+ return 0; -+ } -+ } -+ return -1; -+} -+ -+int do_s3c2410 ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) -+{ -+ if (!strcmp(argv[1], "speed")) { -+ if (argc < 2) -+ goto out_help; -+ if (!strcmp(argv[2], "get")) -+ print_cpu_speed(); -+ else if (!strcmp(argv[2], "list")) -+ list_cpu_speeds(); -+ else if (!strcmp(argv[2], "set")) { -+ unsigned long mhz; -+ if (argc < 3) -+ goto out_help; -+ -+ mhz = simple_strtoul(argv[3], NULL, 10); -+ -+ if (reconfig_mpll(mhz) < 0) -+ printf("error, speed %uMHz unknown\n", mhz); -+ else -+ print_cpu_speed(); -+ } else -+ goto out_help; -+ } else { -+out_help: -+ printf("Usage:\n%s\n", cmdtp->usage); -+ return 1; -+ } -+ -+ return 0; -+} -+ -+/* -------------------------------------------------------------------- */ -+ -+ -+U_BOOT_CMD( -+ s3c2410, 4, 1, do_s3c2410, -+ "s3c2410 - SoC specific commands\n", -+ "speed get - display current PLL speed config\n" -+ "s3c2410 speed list - display supporte PLL speed configs\n" -+ "s3c2410 speed set - set PLL speed\n" -+); -+ -+#endif |