diff options
Diffstat (limited to 'target/linux/ppc40x/patches/004-acadia_cuboot.patch')
| -rw-r--r-- | target/linux/ppc40x/patches/004-acadia_cuboot.patch | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/target/linux/ppc40x/patches/004-acadia_cuboot.patch b/target/linux/ppc40x/patches/004-acadia_cuboot.patch deleted file mode 100644 index 1962d34ad..000000000 --- a/target/linux/ppc40x/patches/004-acadia_cuboot.patch +++ /dev/null @@ -1,197 +0,0 @@ ---- a/arch/powerpc/boot/Makefile -+++ b/arch/powerpc/boot/Makefile -@@ -68,7 +68,8 @@ src-plat := of.c cuboot-52xx.c cuboot-82 - fixed-head.S ep88xc.c ep405.c cuboot-c2k.c \ - cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \ - cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \ -- virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c -+ virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c \ -+ cuboot-acadia.c - src-boot := $(src-wlib) $(src-plat) empty.c - - src-boot := $(addprefix $(obj)/, $(src-boot)) -@@ -211,6 +212,7 @@ image-$(CONFIG_DEFAULT_UIMAGE) += uImag - # Board ports in arch/powerpc/platform/40x/Kconfig - image-$(CONFIG_EP405) += dtbImage.ep405 - image-$(CONFIG_WALNUT) += treeImage.walnut -+image-$(CONFIG_ACADIA) += cuImage.acadia - - # Board ports in arch/powerpc/platform/44x/Kconfig - image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony ---- /dev/null -+++ b/arch/powerpc/boot/cuboot-acadia.c -@@ -0,0 +1,174 @@ -+/* -+ * Old U-boot compatibility for Acadia -+ * -+ * Author: Josh Boyer <jwboyer@linux.vnet.ibm.com> -+ * -+ * Copyright 2008 IBM Corporation -+ * -+ * 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. -+ */ -+ -+#include "ops.h" -+#include "io.h" -+#include "dcr.h" -+#include "stdio.h" -+#include "4xx.h" -+#include "44x.h" -+#include "cuboot.h" -+ -+#define TARGET_4xx -+#include "ppcboot.h" -+ -+static bd_t bd; -+ -+#define CPR_PERD0_SPIDV_MASK 0x000F0000 /* SPI Clock Divider */ -+ -+#define PLLC_SRC_MASK 0x20000000 /* PLL feedback source */ -+ -+#define PLLD_FBDV_MASK 0x1F000000 /* PLL feedback divider value */ -+#define PLLD_FWDVA_MASK 0x000F0000 /* PLL forward divider A value */ -+#define PLLD_FWDVB_MASK 0x00000700 /* PLL forward divider B value */ -+ -+#define PRIMAD_CPUDV_MASK 0x0F000000 /* CPU Clock Divisor Mask */ -+#define PRIMAD_PLBDV_MASK 0x000F0000 /* PLB Clock Divisor Mask */ -+#define PRIMAD_OPBDV_MASK 0x00000F00 /* OPB Clock Divisor Mask */ -+#define PRIMAD_EBCDV_MASK 0x0000000F /* EBC Clock Divisor Mask */ -+ -+#define PERD0_PWMDV_MASK 0xFF000000 /* PWM Divider Mask */ -+#define PERD0_SPIDV_MASK 0x000F0000 /* SPI Divider Mask */ -+#define PERD0_U0DV_MASK 0x0000FF00 /* UART 0 Divider Mask */ -+#define PERD0_U1DV_MASK 0x000000FF /* UART 1 Divider Mask */ -+ -+static void get_clocks(void) -+{ -+ unsigned long sysclk, cpr_plld, cpr_pllc, cpr_primad, plloutb, i; -+ unsigned long pllFwdDiv, pllFwdDivB, pllFbkDiv, pllPlbDiv, pllExtBusDiv; -+ unsigned long pllOpbDiv, freqEBC, freqUART, freqOPB; -+ unsigned long div; /* total divisor udiv * bdiv */ -+ unsigned long umin; /* minimum udiv */ -+ unsigned short diff; /* smallest diff */ -+ unsigned long udiv; /* best udiv */ -+ unsigned short idiff; /* current diff */ -+ unsigned short ibdiv; /* current bdiv */ -+ unsigned long est; /* current estimate */ -+ unsigned long baud; -+ void *np; -+ -+ /* read the sysclk value from the CPLD */ -+ sysclk = (in_8((unsigned char *)0x80000000) == 0xc) ? 66666666 : 33333000; -+ -+ /* -+ * Read PLL Mode registers -+ */ -+ cpr_plld = CPR0_READ(DCRN_CPR0_PLLD); -+ cpr_pllc = CPR0_READ(DCRN_CPR0_PLLC); -+ -+ /* -+ * Determine forward divider A -+ */ -+ pllFwdDiv = ((cpr_plld & PLLD_FWDVA_MASK) >> 16); -+ -+ /* -+ * Determine forward divider B -+ */ -+ pllFwdDivB = ((cpr_plld & PLLD_FWDVB_MASK) >> 8); -+ if (pllFwdDivB == 0) -+ pllFwdDivB = 8; -+ -+ /* -+ * Determine FBK_DIV. -+ */ -+ pllFbkDiv = ((cpr_plld & PLLD_FBDV_MASK) >> 24); -+ if (pllFbkDiv == 0) -+ pllFbkDiv = 256; -+ -+ /* -+ * Read CPR_PRIMAD register -+ */ -+ cpr_primad = CPR0_READ(DCRN_CPR0_PRIMAD); -+ -+ /* -+ * Determine PLB_DIV. -+ */ -+ pllPlbDiv = ((cpr_primad & PRIMAD_PLBDV_MASK) >> 16); -+ if (pllPlbDiv == 0) -+ pllPlbDiv = 16; -+ -+ /* -+ * Determine EXTBUS_DIV. -+ */ -+ pllExtBusDiv = (cpr_primad & PRIMAD_EBCDV_MASK); -+ if (pllExtBusDiv == 0) -+ pllExtBusDiv = 16; -+ -+ /* -+ * Determine OPB_DIV. -+ */ -+ pllOpbDiv = ((cpr_primad & PRIMAD_OPBDV_MASK) >> 8); -+ if (pllOpbDiv == 0) -+ pllOpbDiv = 16; -+ -+ /* There is a bug in U-Boot that prevents us from using -+ * bd.bi_opbfreq because U-Boot doesn't populate it for -+ * 405EZ. We get to calculate it, yay! -+ */ -+ freqOPB = (sysclk *pllFbkDiv) /pllOpbDiv; -+ -+ freqEBC = (sysclk * pllFbkDiv) / pllExtBusDiv; -+ -+ plloutb = ((sysclk * ((cpr_pllc & PLLC_SRC_MASK) ? -+ pllFwdDivB : pllFwdDiv) * -+ pllFbkDiv) / pllFwdDivB); -+ -+ np = find_node_by_alias("serial0"); -+ if (getprop(np, "current-speed", &baud, sizeof(baud)) != sizeof(baud)) -+ fatal("no current-speed property\n\r"); -+ -+ udiv = 256; /* Assume lowest possible serial clk */ -+ div = plloutb / (16 * baud); /* total divisor */ -+ umin = (plloutb / freqOPB) << 1; /* 2 x OPB divisor */ -+ diff = 256; /* highest possible */ -+ -+ /* i is the test udiv value -- start with the largest -+ * possible (256) to minimize serial clock and constrain -+ * search to umin. -+ */ -+ for (i = 256; i > umin; i--) { -+ ibdiv = div / i; -+ est = i * ibdiv; -+ idiff = (est > div) ? (est-div) : (div-est); -+ if (idiff == 0) { -+ udiv = i; -+ break; /* can't do better */ -+ } else if (idiff < diff) { -+ udiv = i; /* best so far */ -+ diff = idiff; /* update lowest diff*/ -+ } -+ } -+ freqUART = plloutb / udiv; -+ -+ dt_fixup_cpu_clocks(bd.bi_procfreq, bd.bi_intfreq, bd.bi_plb_busfreq); -+ dt_fixup_clock("/plb/ebc", freqEBC); -+ dt_fixup_clock("/plb/opb", freqOPB); -+ dt_fixup_clock("/plb/opb/serial@ef600300", freqUART); -+ dt_fixup_clock("/plb/opb/serial@ef600400", freqUART); -+} -+ -+static void acadia_fixups(void) -+{ -+ dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); -+ get_clocks(); -+ dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr); -+} -+ -+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, -+ unsigned long r6, unsigned long r7) -+{ -+ CUBOOT_INIT(); -+ platform_ops.fixups = acadia_fixups; -+ platform_ops.exit = ibm40x_dbcr_reset; -+ fdt_init(_dtb_start); -+ serial_console_init(); -+} |