2 * Memory and machine-specific definitions. Used in C and assembler.
4 #define KiB 1024u /* Kibi 0x0000000000000400 */
5 #define MiB 1048576u /* Mebi 0x0000000000100000 */
6 #define GiB 1073741824u /* Gibi 000000000040000000 */
8 #define MIN(a, b) ((a) < (b)? (a): (b))
9 #define MAX(a, b) ((a) > (b)? (a): (b))
12 * Not sure where these macros should go.
13 * This probably isn't right but will do for now.
14 * The macro names are problematic too.
17 * In B(o), 'o' is the bit offset in the register.
18 * For multi-bit fields use F(v, o, w) where 'v' is the value
19 * of the bit-field of width 'w' with LSb at bit offset 'o'.
22 #define F(v, o, w) (((v) & ((1<<(w))-1))<<(o))
24 #define FCLR(d, o, w) ((d) & ~(((1<<(w))-1)<<(o)))
25 #define FEXT(d, o, w) (((d)>>(o)) & ((1<<(w))-1))
26 #define FINS(d, o, w, v) (FCLR((d), (o), (w))|F((v), (o), (w)))
27 #define FSET(d, o, w) ((d)|(((1<<(w))-1)<<(o)))
29 #define FMASK(o, w) (((1<<(w))-1)<<(o))
34 #define BY2PG (4*KiB) /* bytes per page */
35 #define PGSHIFT 12 /* log(BY2PG) */
36 #define PGROUND(s) ROUND(s, BY2PG)
37 #define ROUND(s, sz) (((s)+(sz-1))&~(sz-1))
39 #define MAXMACH 1 /* max # cpus system can run */
40 #define MACHSIZE BY2PG
42 #define KSTACK (16*KiB) /* was 8K */
43 #define STACKALIGN(sp) ((sp) & ~3) /* bug: assure with alloc */
47 * KTZERO is used by kprof and dumpstack (if any).
49 * KZERO (0xc0000000) is mapped to physical 0x80000000 (start of dram).
50 * u-boot claims to occupy the first 3 MB of dram, but we're willing to
51 * step on it once we're loaded. Expect plan9.ini in the first 64K past 3MB.
53 * L2 PTEs are stored in 1K before Mach (11K to 12K above KZERO).
54 * cpu0's Mach struct is at L1 - MACHSIZE(4K) to L1 (12K to 16K above KZERO).
55 * L1 PTEs are stored from L1 to L1+32K (16K to 48K above KZERO).
56 * KTZERO may be anywhere after that (but probably shouldn't collide with
58 * This should leave over 8K from KZERO to L2 PTEs.
60 #define KSEG0 0xC0000000 /* kernel segment */
61 /* mask to check segment; good for 512MB dram */
62 #define KSEGM 0xE0000000
63 #define KZERO KSEG0 /* kernel address space */
64 #define L1 (KZERO+16*KiB) /* tt ptes: 16KiB aligned */
65 #define CONFADDR (KZERO+0x300000) /* unparsed plan9.ini */
66 /* KTZERO must match loadaddr in mkfile */
67 #define KTZERO (KZERO+0x310000) /* kernel text start */
69 #define UZERO 0 /* user segment */
70 #define UTZERO (UZERO+BY2PG) /* user text start */
72 /* moved USTKTOP down to 512MB to keep MMIO space out of user space. */
73 #define USTKTOP 0x20000000 /* user segment end +1 */
74 #define USTKSIZE (8*1024*1024) /* user stack size */
76 /* address at which to copy and execute rebootcode */
77 #define REBOOTADDR KADDR(0x100)
82 #define BLOCKALIGN 32 /* only used in allocb.c */
87 #define BI2BY 8 /* bits per byte */
90 #define BY2V 8 /* only used in xalloc.c */
92 #define CACHELINESZ 64 /* bytes per cache line */
93 #define PTEMAPMEM (1024*1024)
94 #define PTEPERTAB (PTEMAPMEM/BY2PG)
95 #define SEGMAPSIZE 1984 /* magic 16*124 */
96 #define SSEGMAPSIZE 16 /* magic */
97 #define PPN(x) ((x)&~(BY2PG-1)) /* pure page number? */
100 * These bits are completely artificial.
101 * With a little work these move to port.
103 #define PTEVALID (1<<0)
105 #define PTEWRITE (1<<1)
107 #define PTEUNCACHED (1<<2)
110 * Physical machine information from here on.
113 /* gpmc-controlled address space 0—1G */
114 #define PHYSNAND 1 /* cs0 is onenand flash */
115 #define PHYSETHER 0x2c000000
117 #define PHYSIO 0x48000000 /* L4 ctl */
119 #define PHYSSCM 0x48002000 /* system control module */
121 /* core control pad cfg 0x48002030—0x480021e4, */
122 /* core control d2d pad cfg 0x480021e4—0x48002264 */
123 #define PHYSSCMPCONF 0x48002270 /* general device config */
124 #define PHYSOMAPSTS 0x4800244c /* standalone short: has l2 size */
125 /* core control pad cfg (2) 0x480025d8—0x480025fc */
126 #define PHYSSWBOOTCFG 0x48002910 /* sw booting config */
127 /* wakeup control pad cfg 0x48002a00—0x48002a54 */
129 #define PHYSSCMMPU 0x48004900 /* actually CPU */
130 #define PHYSSCMCORE 0x48004a00
131 #define PHYSSCMWKUP 0x48004c00
132 #define PHYSSCMPLL 0x48004d00 /* clock ctl for dpll[3-5] */
133 #define PHYSSCMDSS 0x48004e00
134 #define PHYSSCMPER 0x48005000
135 #define PHYSSCMUSB 0x48005400
137 #define PHYSL4CORE 0x48040100 /* l4 ap */
138 #define PHYSDSS 0x48050000 /* start of dss registers */
139 #define PHYSDISPC 0x48050400
140 #define PHYSGFX 0x48050480 /* part of dispc */
142 #define PHYSSDMA 0x48056000 /* system dma */
143 #define PHYSDMA 0x48060000
145 #define PHYSUSBTLL 0x48062000 /* usb: transceiver-less link */
146 #define PHYSUHH 0x48064000 /* usb: `high-speed usb host' ctlr or subsys */
147 #define PHYSOHCI 0x48064400 /* usb 1.0: slow */
148 #define PHYSEHCI 0x48064800 /* usb 2.0: medium */
149 #define PHYSUART0 0x4806a000
150 #define PHYSUART1 0x4806c000
151 #define PHYSMMCHS1 0x4809c000 /* mmc/sdio */
152 #define PHYSUSBOTG 0x480ab000 /* on-the-go usb */
153 #define PHYSMMCHS3 0x480ad000
154 #define PHYSMMCHS2 0x480b4000
156 #define PHYSINTC 0x48200000 /* interrupt controller */
158 #define PHYSPRMIVA2 0x48206000 /* prm iva2 regs */
159 /* 48306d40 sys_clkin_sel */
160 #define PHYSPRMGLBL 0x48307200 /* prm global regs */
161 #define PHYSPRMWKUSB 0x48307400
163 #define PHYSCNTRL 0x4830a200 /* SoC id, etc. */
164 #define PHYSWDT1 0x4830c000 /* wdt1, not on GP omaps */
166 #define PHYSGPIO1 0x48310000 /* contains dss gpio */
168 #define PHYSWDOG 0x48314000 /* watchdog timer, wdt2 */
169 #define PHYSWDT2 0x48314000 /* watchdog timer, wdt2 */
170 #define PHYSTIMER1 0x48318000
172 #define PHYSL4WKUP 0x48328100 /* l4 wkup */
173 #define PHYSL4PER 0x49000100 /* l4 per */
175 #define PHYSCONS 0x49020000 /* uart console (third one) */
177 #define PHYSWDT3 0x49030000 /* wdt3 */
178 #define PHYSTIMER2 0x49032000
179 #define PHYSTIMER3 0x49034000
180 #define PHYSGPIO5 0x49056000
181 #define PHYSGPIO6 0x49058000 /* contains igep ether gpio */
183 #define PHYSIOEND 0x49100000 /* end of PHYSIO identity map */
185 #define PHYSL4EMU 0x54006100 /* l4 emu */
186 #define PHYSL4PROT 0x54728000 /* l4 protection regs */
188 #define PHYSL3 0x68000000 /* l3 interconnect control */
189 #define PHYSL3GPMCCFG 0x68002000 /* l3 gpmc target port agent cfg */
190 #define PHYSL3USB 0x68004000 /* l3 regs for usb */
191 #define PHYSL3USBOTG 0x68004400 /* l3 regs for usb otg */
192 /* (target port) protection registers */
193 #define PHYSL3PMRT 0x68010000 /* l3 PM register target prot. */
194 #define PHYSL3GPMCPM 0x68012400 /* l3 gpmc target port protection */
195 #define PHYSL3OCTRAM 0x68012800 /* l3 ocm ram */
196 #define PHYSL3OCTROM 0x68012c00 /* l3 ocm rom */
197 #define PHYSL3MAD2D 0x68013000 /* l3 die-to-die */
198 #define PHYSL3IVA 0x68014000 /* l3 die-to-die */
200 #define PHYSSMS 0x6c000000 /* cfg regs: sms addr space 2 */
201 #define PHYSDRC 0x6d000000 /* sdram ctlr, addr space 3 */
202 #define PHYSGPMC 0x6e000000 /* flash, non-dram memory ctlr */
204 #define PHYSDRAM 0x80000000
206 #define VIRTNAND 0x20000000 /* fixed by u-boot */
207 #define VIRTIO PHYSIO