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openwrt-xburst/target/linux/ppc40x/patches-2.6.30/104-magicboxv2-cf-card-fixup.patch
juhosg 54ef805a99 [ppc40x] add driver for the CF slot of the Magicbox v2/OpenRB boards
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16910 3c298f89-4303-0410-b956-a3cf2f4a3e73
2009-07-19 09:11:59 +00:00

48 lines
1.4 KiB
Diff

--- a/arch/powerpc/boot/cuboot-magicboxv2.c
+++ b/arch/powerpc/boot/cuboot-magicboxv2.c
@@ -2,6 +2,7 @@
* Old U-boot compatibility for Magicbox v2
*
* Author: Imre Kaloz <kaloz@openwrt.org>
+ * Gabor Juhos <juhosg@openwrt.org>
*
* 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
@@ -22,8 +23,36 @@
static bd_t bd;
+static void fixup_cf_card(void)
+{
+#define DCRN_CPC0_PCI_BASE 0xf9
+#define CF_CS0_BASE 0xff100000
+#define CF_CS1_BASE 0xff200000
+
+ /* Turn on PerWE instead of PCIsomething */
+ mtdcr(DCRN_CPC0_PCI_BASE,
+ mfdcr(DCRN_CPC0_PCI_BASE) | (0x80000000L >> 27));
+
+ /* PerCS1 (CF's CS0): base 0xff100000, 16-bit, rw */
+ mtdcr(DCRN_EBC0_CFGADDR, EBC_B1CR);
+ mtdcr(DCRN_EBC0_CFGDATA, CF_CS0_BASE | EBC_BXCR_BU_RW | EBC_BXCR_BW_16);
+ mtdcr(DCRN_EBC0_CFGADDR, EBC_B1AP);
+ mtdcr(DCRN_EBC0_CFGDATA, 0x080bd800);
+
+ /* PerCS2 (CF's CS1): base 0xff200000, 16-bit, rw */
+ mtdcr(DCRN_EBC0_CFGADDR, EBC_B2CR);
+ mtdcr(DCRN_EBC0_CFGDATA, CF_CS1_BASE | EBC_BXCR_BU_RW | EBC_BXCR_BW_16);
+ mtdcr(DCRN_EBC0_CFGADDR, EBC_B2AP);
+ mtdcr(DCRN_EBC0_CFGDATA, 0x080bd800);
+
+#undef DCRN_CPC0_PCI_BASE
+#undef CF_CS0_BASE
+#undef CF_CS1_BASE
+}
+
static void magicboxv2_fixups(void)
{
+ fixup_cf_card();
ibm405ep_fixup_clocks(25000000);
ibm4xx_sdram_fixup_memsize();
dt_fixup_mac_addresses(&bd.bi_enetaddr, &bd.bi_enet1addr);