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Diffstat (limited to 'arch/ppc/syslib/m8xx_setup.c')
-rw-r--r--arch/ppc/syslib/m8xx_setup.c65
1 files changed, 57 insertions, 8 deletions
diff --git a/arch/ppc/syslib/m8xx_setup.c b/arch/ppc/syslib/m8xx_setup.c
index 688616d..dae9af7 100644
--- a/arch/ppc/syslib/m8xx_setup.c
+++ b/arch/ppc/syslib/m8xx_setup.c
@@ -1,6 +1,4 @@
/*
- * arch/ppc/kernel/setup.c
- *
* Copyright (C) 1995 Linus Torvalds
* Adapted from 'alpha' version by Gary Thomas
* Modified by Cort Dougan (cort@cs.nmt.edu)
@@ -34,6 +32,13 @@
#include <linux/seq_file.h>
#include <linux/root_dev.h>
+#if defined(CONFIG_MTD) && defined(CONFIG_MTD_PHYSMAP)
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#endif
+
#include <asm/mmu.h>
#include <asm/reg.h>
#include <asm/residual.h>
@@ -49,6 +54,34 @@
#include "ppc8xx_pic.h"
+#ifdef CONFIG_MTD_PHYSMAP
+#define MPC8xxADS_BANK_WIDTH 4
+#endif
+
+#define MPC8xxADS_U_BOOT_SIZE 0x80000
+#define MPC8xxADS_FREE_AREA_OFFSET MPC8xxADS_U_BOOT_SIZE
+
+#if defined(CONFIG_MTD_PARTITIONS)
+ /*
+ NOTE: bank width and interleave relative to the installed flash
+ should have been chosen within MTD_CFI_GEOMETRY options.
+ */
+static struct mtd_partition mpc8xxads_partitions[] = {
+ {
+ .name = "bootloader",
+ .size = MPC8xxADS_U_BOOT_SIZE,
+ .offset = 0,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ }, {
+ .name = "User FS",
+ .offset = MPC8xxADS_FREE_AREA_OFFSET
+ }
+};
+
+#define mpc8xxads_part_num (sizeof (mpc8xxads_partitions) / sizeof (mpc8xxads_partitions[0]))
+
+#endif
+
static int m8xx_set_rtc_time(unsigned long time);
static unsigned long m8xx_get_rtc_time(void);
void m8xx_calibrate_decr(void);
@@ -71,6 +104,10 @@ board_init(void)
void __init
m8xx_setup_arch(void)
{
+#if defined(CONFIG_MTD) && defined(CONFIG_MTD_PHYSMAP)
+ bd_t *binfo = (bd_t *)__res;
+#endif
+
/* Reset the Communication Processor Module.
*/
m8xx_cpm_reset();
@@ -106,6 +143,17 @@ m8xx_setup_arch(void)
}
#endif
#endif
+
+#if defined (CONFIG_MPC86XADS) || defined (CONFIG_MPC885ADS)
+#if defined(CONFIG_MTD_PHYSMAP)
+ physmap_configure(binfo->bi_flashstart, binfo->bi_flashsize,
+ MPC8xxADS_BANK_WIDTH, NULL);
+#ifdef CONFIG_MTD_PARTITIONS
+ physmap_set_partitions(mpc8xxads_partitions, mpc8xxads_part_num);
+#endif /* CONFIG_MTD_PARTITIONS */
+#endif /* CONFIG_MTD_PHYSMAP */
+#endif
+
board_init();
}
@@ -140,9 +188,11 @@ void __init __attribute__ ((weak))
init_internal_rtc(void)
{
/* Disable the RTC one second and alarm interrupts. */
- out_be16(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc, in_be16(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc) & ~(RTCSC_SIE | RTCSC_ALE));
+ clrbits16(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc, (RTCSC_SIE | RTCSC_ALE));
+
/* Enable the RTC */
- out_be16(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc, in_be16(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc) | (RTCSC_RTF | RTCSC_RTE));
+ setbits16(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc, (RTCSC_RTF | RTCSC_RTE));
+
}
/* The decrementer counts at the system (internal) clock frequency divided by
@@ -159,8 +209,7 @@ void __init m8xx_calibrate_decr(void)
out_be32(&((immap_t *)IMAP_ADDR)->im_clkrstk.cark_sccrk, KAPWR_KEY);
/* Force all 8xx processors to use divide by 16 processor clock. */
- out_be32(&((immap_t *)IMAP_ADDR)->im_clkrst.car_sccr,
- in_be32(&((immap_t *)IMAP_ADDR)->im_clkrst.car_sccr)|0x02000000);
+ setbits32(&((immap_t *)IMAP_ADDR)->im_clkrst.car_sccr, 0x02000000);
/* Processor frequency is MHz.
* The value 'fp' is the number of decrementer ticks per second.
*/
@@ -239,8 +288,8 @@ m8xx_restart(char *cmd)
__volatile__ unsigned char dummy;
local_irq_disable();
- out_be32(&((immap_t *)IMAP_ADDR)->im_clkrst.car_plprcr, in_be32(&((immap_t *)IMAP_ADDR)->im_clkrst.car_plprcr) | 0x00000080);
+ setbits32(&((immap_t *)IMAP_ADDR)->im_clkrst.car_plprcr, 0x00000080);
/* Clear the ME bit in MSR to cause checkstop on machine check
*/
mtmsr(mfmsr() & ~0x1000);
@@ -310,8 +359,8 @@ m8xx_init_IRQ(void)
i8259_init(0);
/* The i8259 cascade interrupt must be level sensitive. */
- out_be32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel, in_be32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel & ~(0x80000000 >> ISA_BRIDGE_INT)));
+ clrbits32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel, (0x80000000 >> ISA_BRIDGE_INT));
if (setup_irq(ISA_BRIDGE_INT, &mbx_i8259_irqaction))
enable_irq(ISA_BRIDGE_INT);
#endif /* CONFIG_PCI */
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