Start to allow platforms other than U-Boot to use the FDT code in loader by
moving U-Boot specific code from libfdt.a to a new libuboot_fdt.a. This needs to be a new library for linking to work correctly. Differential Revision: https://reviews.freebsd.org/D1054 Reviewed by: ian, rpaulo (earlier version) MFC after: 1 week
This commit is contained in:
Andrew Turner
parent
b6fbc510be
commit
8c81befd0b
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=273934
@ -72,6 +72,7 @@ CFLAGS+= -DLOADER_TFTP_SUPPORT
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CFLAGS+= -I${.CURDIR}/../../fdt
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CFLAGS+= -I${.OBJDIR}/../../fdt
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CFLAGS+= -DLOADER_FDT_SUPPORT
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LIBUBOOT_FDT= ${.OBJDIR}/../../uboot/fdt/libuboot_fdt.a
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LIBFDT= ${.OBJDIR}/../../fdt/libfdt.a
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.endif
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@ -112,8 +113,8 @@ CFLAGS+= -I${.CURDIR}/../../../../lib/libstand/
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# clang doesn't understand %D as a specifier to printf
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NO_WERROR.clang=
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DPADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBSTAND}
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LDADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} -lstand
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DPADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBUBOOT_FDT} ${LIBSTAND}
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LDADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBUBOOT_FDT} -lstand
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vers.c: ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
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sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
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@ -11,8 +11,7 @@ SRCS+= fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
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# Loader's fdt commands extension sources.
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SRCS+= fdt_loader_cmd.c
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CFLAGS+= -I${.CURDIR}/../../contrib/libfdt/ -I${.CURDIR}/../common/ \
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-I${.CURDIR}/../uboot/lib
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CFLAGS+= -I${.CURDIR}/../../contrib/libfdt/ -I${.CURDIR}/../common/
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CFLAGS+= -ffreestanding
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@ -39,7 +39,6 @@ __FBSDID("$FreeBSD$");
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#include "bootstrap.h"
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#include "fdt_platform.h"
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#include "glue.h"
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#ifdef DEBUG
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#define debugf(fmt, args...) do { printf("%s(): ", __func__); \
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@ -53,9 +52,6 @@ __FBSDID("$FreeBSD$");
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#define FDT_PROP_SEP " = "
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#define STR(number) #number
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#define STRINGIFY(number) STR(number)
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#define COPYOUT(s,d,l) archsw.arch_copyout(s, d, l)
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#define COPYIN(s,d,l) archsw.arch_copyin(s, d, l)
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@ -229,7 +225,7 @@ fdt_load_dtb(vm_offset_t va)
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return (0);
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}
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static int
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int
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fdt_load_dtb_addr(struct fdt_header *header)
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{
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int err;
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@ -254,7 +250,7 @@ fdt_load_dtb_addr(struct fdt_header *header)
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return (0);
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}
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static int
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int
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fdt_load_dtb_file(const char * filename)
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{
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struct preloaded_file *bfp, *oldbfp;
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@ -284,9 +280,6 @@ int
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fdt_setup_fdtp()
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{
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struct preloaded_file *bfp;
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struct fdt_header *hdr;
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const char *s;
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char *p;
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vm_offset_t va;
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debugf("fdt_setup_fdtp()\n");
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@ -309,41 +302,8 @@ fdt_setup_fdtp()
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}
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}
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/*
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* If the U-boot environment contains a variable giving the address of a
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* valid blob in memory, use it. The U-boot README says the right
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* variable for fdt data loaded into ram is fdt_addr_r, so try that
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* first. Board vendors also use both fdtaddr and fdt_addr names.
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*/
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s = ub_env_get("fdt_addr_r");
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if (s == NULL)
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s = ub_env_get("fdtaddr");
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if (s == NULL)
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s = ub_env_get("fdt_addr");
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if (s != NULL && *s != '\0') {
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hdr = (struct fdt_header *)strtoul(s, &p, 16);
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if (*p == '\0') {
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if (fdt_load_dtb_addr(hdr) == 0) {
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printf("Using DTB provided by U-Boot at "
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"address %p.\n", hdr);
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return (0);
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}
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}
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}
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/*
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* If the U-boot environment contains a variable giving the name of a
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* file, use it if we can load and validate it.
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*/
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s = ub_env_get("fdtfile");
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if (s == NULL)
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s = ub_env_get("fdt_file");
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if (s != NULL && *s != '\0') {
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if (fdt_load_dtb_file(s) == 0) {
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printf("Loaded DTB from file '%s'.\n", s);
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return (0);
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}
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}
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if (fdt_platform_load_dtb() == 0)
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return (0);
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/* If there is a dtb compiled into the kernel, use it. */
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if ((va = fdt_find_static_dtb()) != 0) {
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@ -407,48 +367,20 @@ _fdt_strtovect(const char *str, void *cellbuf, int lim, unsigned char cellsize,
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return (cnt);
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}
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#define TMP_MAX_ETH 8
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static void
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fixup_ethernet(const char *env, char *ethstr, int *eth_no, int len)
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void
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fdt_fixup_ethernet(const char *str, char *ethstr, int len)
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{
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const char *str;
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char *end;
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uint8_t tmp_addr[6];
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int i, n;
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/* Extract interface number */
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i = strtol(env + 3, &end, 10);
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if (end == (env + 3))
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/* 'ethaddr' means interface 0 address */
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n = 0;
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else
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n = i;
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if (n > TMP_MAX_ETH)
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return;
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str = ub_env_get(env);
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/* Convert macaddr string into a vector of uints */
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fdt_strtovectx(str, &tmp_addr, 6, sizeof(uint8_t));
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if (n != 0) {
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i = strlen(env) - 7;
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strncpy(ethstr + 8, env + 3, i);
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}
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/* Set actual property to a value from vect */
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fdt_setprop(fdtp, fdt_path_offset(fdtp, ethstr),
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"local-mac-address", &tmp_addr, 6 * sizeof(uint8_t));
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/* Clear ethernet..XXXX.. string */
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bzero(ethstr + 8, len - 8);
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if (n + 1 > *eth_no)
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*eth_no = n + 1;
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}
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static void
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fixup_cpubusfreqs(unsigned long cpufreq, unsigned long busfreq)
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void
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fdt_fixup_cpubusfreqs(unsigned long cpufreq, unsigned long busfreq)
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{
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int lo, o = 0, o2, maxo = 0, depth;
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const uint32_t zero = 0;
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@ -527,13 +459,14 @@ fdt_reg_valid(uint32_t *reg, int len, int addr_cells, int size_cells)
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return (0);
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}
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static void
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fixup_memory(struct sys_info *si)
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void
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fdt_fixup_memory(struct fdt_mem_region *region, size_t num)
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{
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struct mem_region *curmr;
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struct fdt_mem_region *curmr;
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uint32_t addr_cells, size_cells;
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uint32_t *addr_cellsp, *reg, *size_cellsp;
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int err, i, len, memory, realmrno, root;
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int err, i, len, memory, root;
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size_t realmrno;
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uint8_t *buf, *sb;
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uint64_t rstart, rsize;
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int reserved;
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@ -591,7 +524,6 @@ fixup_memory(struct sys_info *si)
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bzero(buf, len);
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for (i = 0; i < reserved; i++) {
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curmr = &si->mr[i];
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if (fdt_get_mem_rsv(fdtp, i, &rstart, &rsize))
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break;
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if (rsize) {
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@ -623,9 +555,9 @@ fixup_memory(struct sys_info *si)
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}
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/* Count valid memory regions entries in sysinfo. */
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realmrno = si->mr_no;
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for (i = 0; i < si->mr_no; i++)
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if (si->mr[i].start == 0 && si->mr[i].size == 0)
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realmrno = num;
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for (i = 0; i < num; i++)
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if (region[i].start == 0 && region[i].size == 0)
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realmrno--;
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if (realmrno == 0) {
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@ -652,8 +584,8 @@ fixup_memory(struct sys_info *si)
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bzero(buf, len);
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for (i = 0; i < si->mr_no; i++) {
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curmr = &si->mr[i];
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for (i = 0; i < num; i++) {
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curmr = ®ion[i];
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if (curmr->size != 0) {
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/* Ensure endianess, and put cells into a buffer */
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if (addr_cells == 2)
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@ -682,17 +614,15 @@ fixup_memory(struct sys_info *si)
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free(sb);
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}
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static void
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fixup_stdout(const char *env)
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void
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fdt_fixup_stdout(const char *str)
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{
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const char *str;
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char *ptr;
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int serialno;
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int len, no, sero;
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const struct fdt_property *prop;
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char *tmp[10];
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str = ub_env_get(env);
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ptr = (char *)str + strlen(str) - 1;
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while (ptr > str && isdigit(*(str - 1)))
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str--;
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@ -738,14 +668,8 @@ fixup_stdout(const char *env)
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static int
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fdt_fixup(void)
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{
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const char *env;
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char *ethstr;
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int chosen, eth_no, len;
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struct sys_info *si;
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int chosen, len;
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env = NULL;
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eth_no = 0;
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ethstr = NULL;
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len = 0;
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debugf("fdt_fixup()\n");
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@ -762,45 +686,7 @@ fdt_fixup(void)
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if (fdt_getprop(fdtp, chosen, "fixup-applied", NULL))
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return (1);
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/* Acquire sys_info */
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si = ub_get_sys_info();
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while ((env = ub_env_enum(env)) != NULL) {
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if (strncmp(env, "eth", 3) == 0 &&
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strncmp(env + (strlen(env) - 4), "addr", 4) == 0) {
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/*
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* Handle Ethernet addrs: parse uboot env eth%daddr
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*/
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if (!eth_no) {
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/*
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* Check how many chars we will need to store
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* maximal eth iface number.
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*/
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len = strlen(STRINGIFY(TMP_MAX_ETH)) +
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strlen("ethernet");
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/*
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* Reserve mem for string "ethernet" and len
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* chars for iface no.
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*/
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ethstr = (char *)malloc(len * sizeof(char));
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bzero(ethstr, len * sizeof(char));
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strcpy(ethstr, "ethernet0");
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}
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/* Modify blob */
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fixup_ethernet(env, ethstr, ð_no, len);
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} else if (strcmp(env, "consoledev") == 0)
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fixup_stdout(env);
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}
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/* Modify cpu(s) and bus clock frequenties in /cpus node [Hz] */
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fixup_cpubusfreqs(si->clk_cpu, si->clk_bus);
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/* Fixup memory regions */
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fixup_memory(si);
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fdt_platform_fixups();
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fdt_setprop(fdtp, chosen, "fixup-applied", NULL, 0);
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return (1);
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@ -29,7 +29,26 @@
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#ifndef FDT_PLATFORM_H
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#define FDT_PLATFORM_H
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extern int fdt_copy(vm_offset_t);
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extern int fdt_setup_fdtp(void);
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struct fdt_header;
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struct fdt_mem_region {
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unsigned long start;
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unsigned long size;
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};
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#define TMP_MAX_ETH 8
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int fdt_copy(vm_offset_t);
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void fdt_fixup_cpubusfreqs(unsigned long, unsigned long);
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void fdt_fixup_ethernet(const char *, char *, int);
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void fdt_fixup_memory(struct fdt_mem_region *, size_t);
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void fdt_fixup_stdout(const char *);
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int fdt_load_dtb_addr(struct fdt_header *);
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int fdt_load_dtb_file(const char *);
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int fdt_setup_fdtp(void);
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/* The platform library needs to implement these functions */
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int fdt_platform_load_dtb(void);
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void fdt_platform_fixups(void);
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#endif /* FDT_PLATFORM_H */
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@ -62,6 +62,7 @@ CFLAGS+= -DLOADER_TFTP_SUPPORT
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CFLAGS+= -I${.CURDIR}/../../fdt
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CFLAGS+= -I${.OBJDIR}/../../fdt
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CFLAGS+= -DLOADER_FDT_SUPPORT
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LIBUBOOT_FDT= ${.OBJDIR}/../../uboot/fdt/libuboot_fdt.a
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LIBFDT= ${.OBJDIR}/../../fdt/libfdt.a
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.endif
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@ -98,8 +99,8 @@ CFLAGS+= -I${.OBJDIR}/../../uboot/lib
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LIBSTAND= ${.OBJDIR}/../../libstand32/libstand.a
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CFLAGS+= -I${.CURDIR}/../../../../lib/libstand/
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DPADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBSTAND}
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LDADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBSTAND}
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DPADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBUBOOT_FDT} ${LIBSTAND}
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LDADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBUBOOT_FDT} ${LIBSTAND}
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vers.c: ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
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sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
|
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@ -1,5 +1,11 @@
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# $FreeBSD$
|
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.include <src.opts.mk>
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SUBDIR= lib
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|
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.if ${MK_FDT} != "no"
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SUBDIR+=fdt
|
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.endif
|
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|
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.include <bsd.subdir.mk>
|
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|
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33
sys/boot/uboot/fdt/Makefile
Normal file
33
sys/boot/uboot/fdt/Makefile
Normal file
@ -0,0 +1,33 @@
|
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# $FreeBSD$
|
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|
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.include <src.opts.mk>
|
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|
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.PATH: ${.CURDIR}/../../common
|
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|
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LIB= uboot_fdt
|
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INTERNALLIB=
|
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WARNS?= 2
|
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|
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SRCS= uboot_fdt.c
|
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|
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CFLAGS+= -ffreestanding -msoft-float
|
||||
|
||||
CFLAGS+= -I${.CURDIR}/../../../../lib/libstand/
|
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|
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# U-Boot library headers
|
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CFLAGS+= -I${.CURDIR}/../lib
|
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|
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# libfdt headers
|
||||
CFLAGS+= -I${.CURDIR}/../../fdt
|
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|
||||
# Pick up the bootstrap header for some interface items
|
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CFLAGS+= -I${.CURDIR}/../../common -I${.CURDIR}/../../.. -I.
|
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|
||||
machine:
|
||||
ln -sf ${.CURDIR}/../../../${MACHINE_CPUARCH}/include machine
|
||||
|
||||
CLEANFILES+= machine
|
||||
|
||||
.include <bsd.lib.mk>
|
||||
|
||||
beforedepend ${OBJS}: machine
|
||||
181
sys/boot/uboot/fdt/uboot_fdt.c
Normal file
181
sys/boot/uboot/fdt/uboot_fdt.c
Normal file
@ -0,0 +1,181 @@
|
||||
/*-
|
||||
* Copyright (c) 2009-2010 The FreeBSD Foundation
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software was developed by Semihalf under sponsorship from
|
||||
* the FreeBSD Foundation.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <stand.h>
|
||||
#include <fdt_platform.h>
|
||||
|
||||
#include "glue.h"
|
||||
|
||||
#define STR(number) #number
|
||||
#define STRINGIFY(number) STR(number)
|
||||
|
||||
int
|
||||
fdt_platform_load_dtb(void)
|
||||
{
|
||||
struct fdt_header *hdr;
|
||||
const char *s;
|
||||
char *p;
|
||||
|
||||
/*
|
||||
* If the U-boot environment contains a variable giving the address of a
|
||||
* valid blob in memory, use it. The U-boot README says the right
|
||||
* variable for fdt data loaded into ram is fdt_addr_r, so try that
|
||||
* first. Board vendors also use both fdtaddr and fdt_addr names.
|
||||
*/
|
||||
s = ub_env_get("fdt_addr_r");
|
||||
if (s == NULL)
|
||||
s = ub_env_get("fdtaddr");
|
||||
if (s == NULL)
|
||||
s = ub_env_get("fdt_addr");
|
||||
if (s != NULL && *s != '\0') {
|
||||
hdr = (struct fdt_header *)strtoul(s, &p, 16);
|
||||
if (*p == '\0') {
|
||||
if (fdt_load_dtb_addr(hdr) == 0) {
|
||||
printf("Using DTB provided by U-Boot at "
|
||||
"address %p.\n", hdr);
|
||||
return (0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* If the U-boot environment contains a variable giving the name of a
|
||||
* file, use it if we can load and validate it.
|
||||
*/
|
||||
s = ub_env_get("fdtfile");
|
||||
if (s == NULL)
|
||||
s = ub_env_get("fdt_file");
|
||||
if (s != NULL && *s != '\0') {
|
||||
if (fdt_load_dtb_file(s) == 0) {
|
||||
printf("Loaded DTB from file '%s'.\n", s);
|
||||
return (0);
|
||||
}
|
||||
}
|
||||
|
||||
return (1);
|
||||
}
|
||||
|
||||
void
|
||||
fdt_platform_fixups(void)
|
||||
{
|
||||
struct fdt_mem_region regions[3];
|
||||
const char *env, *str;
|
||||
char *end, *ethstr;
|
||||
int eth_no, i, len, n;
|
||||
struct sys_info *si;
|
||||
|
||||
env = NULL;
|
||||
eth_no = 0;
|
||||
ethstr = NULL;
|
||||
|
||||
/* Acquire sys_info */
|
||||
si = ub_get_sys_info();
|
||||
|
||||
while ((env = ub_env_enum(env)) != NULL) {
|
||||
if (strncmp(env, "eth", 3) == 0 &&
|
||||
strncmp(env + (strlen(env) - 4), "addr", 4) == 0) {
|
||||
/*
|
||||
* Handle Ethernet addrs: parse uboot env eth%daddr
|
||||
*/
|
||||
|
||||
if (!eth_no) {
|
||||
/*
|
||||
* Check how many chars we will need to store
|
||||
* maximal eth iface number.
|
||||
*/
|
||||
len = strlen(STRINGIFY(TMP_MAX_ETH)) +
|
||||
strlen("ethernet") + 1;
|
||||
|
||||
/*
|
||||
* Reserve mem for string "ethernet" and len
|
||||
* chars for iface no.
|
||||
*/
|
||||
ethstr = (char *)malloc(len * sizeof(char));
|
||||
bzero(ethstr, len * sizeof(char));
|
||||
strcpy(ethstr, "ethernet0");
|
||||
}
|
||||
|
||||
/* Extract interface number */
|
||||
i = strtol(env + 3, &end, 10);
|
||||
if (end == (env + 3))
|
||||
/* 'ethaddr' means interface 0 address */
|
||||
n = 0;
|
||||
else
|
||||
n = i;
|
||||
|
||||
if (n > TMP_MAX_ETH)
|
||||
continue;
|
||||
|
||||
str = ub_env_get(env);
|
||||
|
||||
if (n != 0) {
|
||||
/*
|
||||
* Find the lenght of the interface id by
|
||||
* taking in to account the first 3 and
|
||||
* last 4 characters.
|
||||
*/
|
||||
i = strlen(env) - 7;
|
||||
strncpy(ethstr + 8, env + 3, i);
|
||||
}
|
||||
|
||||
/* Modify blob */
|
||||
fdt_fixup_ethernet(str, ethstr, len);
|
||||
|
||||
/* Clear ethernet..XXXX.. string */
|
||||
bzero(ethstr + 8, len - 8);
|
||||
|
||||
if (n + 1 > eth_no)
|
||||
eth_no = n + 1;
|
||||
} else if (strcmp(env, "consoledev") == 0) {
|
||||
str = ub_env_get(env);
|
||||
fdt_fixup_stdout(str);
|
||||
}
|
||||
}
|
||||
|
||||
/* Modify cpu(s) and bus clock frequenties in /cpus node [Hz] */
|
||||
fdt_fixup_cpubusfreqs(si->clk_cpu, si->clk_bus);
|
||||
|
||||
/* Copy the data into a useful form */
|
||||
for (i = 0; i < si->mr_no; i++) {
|
||||
if (i > nitems(regions)) {
|
||||
i = nitems(regions);
|
||||
break;
|
||||
}
|
||||
|
||||
regions[i].start = si->mr[i].start;
|
||||
regions[i].size = si->mr[i].size;
|
||||
}
|
||||
|
||||
/* Fixup memory regions */
|
||||
fdt_fixup_memory(regions, i);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user