diff options
Diffstat (limited to 'arch/arm/cpu/arm926ejs/kirkwood/mpp.c')
-rw-r--r-- | arch/arm/cpu/arm926ejs/kirkwood/mpp.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/arch/arm/cpu/arm926ejs/kirkwood/mpp.c b/arch/arm/cpu/arm926ejs/kirkwood/mpp.c deleted file mode 100644 index 7222504..0000000 --- a/arch/arm/cpu/arm926ejs/kirkwood/mpp.c +++ /dev/null @@ -1,90 +0,0 @@ -/* - * arch/arm/mach-kirkwood/mpp.c - * - * MPP functions for Marvell Kirkwood SoCs - * Referenced from Linux kernel source - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/cpu.h> -#include <asm/arch/soc.h> -#include <asm/arch/mpp.h> - -static u32 kirkwood_variant(void) -{ - switch (readl(KW_REG_DEVICE_ID) & 0x03) { - case 1: - return MPP_F6192_MASK; - case 2: - return MPP_F6281_MASK; - default: - debug("MPP setup: unknown kirkwood variant\n"); - return 0; - } -} - -#define MPP_CTRL(i) (KW_MPP_BASE + (i* 4)) -#define MPP_NR_REGS (1 + MPP_MAX/8) - -void kirkwood_mpp_conf(const u32 *mpp_list, u32 *mpp_save) -{ - u32 mpp_ctrl[MPP_NR_REGS]; - unsigned int variant_mask; - int i; - - variant_mask = kirkwood_variant(); - if (!variant_mask) - return; - - debug( "initial MPP regs:"); - for (i = 0; i < MPP_NR_REGS; i++) { - mpp_ctrl[i] = readl(MPP_CTRL(i)); - debug(" %08x", mpp_ctrl[i]); - } - debug("\n"); - - - while (*mpp_list) { - unsigned int num = MPP_NUM(*mpp_list); - unsigned int sel = MPP_SEL(*mpp_list); - unsigned int sel_save; - int shift; - - if (num > MPP_MAX) { - debug("kirkwood_mpp_conf: invalid MPP " - "number (%u)\n", num); - continue; - } - if (!(*mpp_list & variant_mask)) { - debug("kirkwood_mpp_conf: requested MPP%u config " - "unavailable on this hardware\n", num); - continue; - } - - shift = (num & 7) << 2; - - if (mpp_save) { - sel_save = (mpp_ctrl[num / 8] >> shift) & 0xf; - *mpp_save = num | (sel_save << 8) | variant_mask; - mpp_save++; - } - - mpp_ctrl[num / 8] &= ~(0xf << shift); - mpp_ctrl[num / 8] |= sel << shift; - - mpp_list++; - } - - debug(" final MPP regs:"); - for (i = 0; i < MPP_NR_REGS; i++) { - writel(mpp_ctrl[i], MPP_CTRL(i)); - debug(" %08x", mpp_ctrl[i]); - } - debug("\n"); - -} |