d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use pmap_devmap_bootstrap(), instead of mapping the SACOM1 registers

Browse Source 
with pmap_map_entry.
More use of macros instead of hardcoding the addr.

Submitted by:	kevlo
This commit is contained in:
Olivier Houchard 2006-05-23 12:14:14 +00:00
parent f6bd1faf76
commit fb350a0d6a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=158854
4 changed files with 42 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
sys/arm/sa11x0/assabet_machdep.c
View File

@ -156,6 +156,35 @@ struct pv_addr kernelstack;
void enable_mmu(vm_offset_t);
static struct trapframe proc0_tf;
/* Static device mappings. */
static const struct pmap_devmap assabet_devmap[] = {
/*
* Map the on-board devices VA == PA so that we can access them
* with the MMU on or off.
*/
{
SACOM1_VBASE,
SACOM1_BASE,
SACOM1_SIZE,
VM_PROT_READ|VM_PROT_WRITE,
PTE_NOCACHE,
},
{
SAIPIC_BASE,
SAIPIC_BASE,
SAIPIC_SIZE,
VM_PROT_READ|VM_PROT_WRITE,
PTE_NOCACHE,
},
{
0,
0,
0,
0,
0,
}
};
struct arm32_dma_range *
bus_dma_get_range(void)
{
@ -336,11 +365,8 @@ initarm(void *arg, void *arg2)
/* Map the vector page. */
pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa,
VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
/* Map SACOM1. */
pmap_map_entry(l1pagetable, SACOM1_VBASE, SACOM1_BASE,
VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE);
pmap_map_entry(l1pagetable, 0x90050000, 0x90050000,
VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE);
/* Map the statically mapped devices. */
pmap_devmap_bootstrap(l1pagetable, assabet_devmap);
pmap_map_chunk(l1pagetable, sa1_cache_clean_addr, 0xf0000000,
CPU_SA110_CACHE_CLEAN_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);

7
sys/arm/sa11x0/sa11x0_io.c
View File

@ -146,6 +146,13 @@ sa11x0_bs_map(t, bpa, size, cacheable, bshp)
u_long startpa, endpa, pa;
vm_offset_t va;
pt_entry_t *pte;
const struct pmap_devmap *pd;
if ((pd = pmap_devmap_find_pa(bpa, size)) != NULL) {
/* Device was statically mapped. */
*bshp = pd->pd_va + (bpa - pd->pd_pa);
return 0;
}
startpa = trunc_page(bpa);
endpa = round_page(bpa + size);

2
sys/arm/sa11x0/sa11x0_reg.h
View File

@ -48,9 +48,11 @@
#define SARCR_BASE 0x90030000 /* Reset Controller */
#define SAGPIO_BASE 0x90040000 /* GPIO */
#define SAIPIC_BASE 0x90050000 /* Interrupt Controller */
#define SAIPIC_SIZE 0x24
#define SAPPC_BASE 0x90060000 /* Peripheral Pin Controller */
#define SAUDC_BASE 0x80000000 /* USB Device Controller*/
#define SACOM1_BASE 0x80010000 /* GPCLK/UART 1 */
#define SACOM1_SIZE 0x24
#define SACOM3_HW_BASE 0x80050000 /* UART 3 */
#define SAMCP_BASE 0x80060000 /* MCP Controller */
#define SASSP_BASE 0x80070000 /* Synchronous serial port */

3
sys/arm/sa11x0/uart_cpu_sa1110.c
View File

@ -36,6 +36,7 @@ __FBSDID("$FreeBSD$");
#include <dev/uart/uart.h>
#include <dev/uart/uart_cpu.h>
#include <arm/sa11x0/sa11x0_reg.h>
#include <arm/sa11x0/sa11x0_var.h>
bus_space_tag_t uart_bus_space_io;
@ -57,7 +58,7 @@ uart_cpu_getdev(int devtype, struct uart_devinfo *di)
di->ops = uart_sa1110_ops;
di->bas.chan = 0;
di->bas.bst = &sa11x0_bs_tag;
di->bas.bsh = 0x80010000;
di->bas.bsh = SACOM1_BASE;
di->bas.regshft = 0;
di->bas.rclk = 0;
di->baudrate = 9600;